/* roulang page: index */
:root{
  --primary:#1e40af;
  --primary-light:#3b82f6;
  --primary-dark:#172c74;
  --accent:#f59e0b;
  --accent-light:#fbbf24;
  --dark-bg:#0f172a;
  --dark-card:#1e293b;
  --bg-light:#f1f5f9;
  --bg-white:#ffffff;
  --text-main:#1e293b;
  --text-muted:#64748b;
  --text-light:#94a3b8;
  --border:#e2e8f0;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-sm:0 2px 6px rgba(15,23,42,.06);
  --shadow-md:0 6px 20px rgba(15,23,42,.08);
  --shadow-lg:0 14px 40px rgba(15,23,42,.14);
  --transition:.25s ease;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  color:var(--text-main);
  background:var(--bg-white);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul{list-style:none}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-md);font-weight:600;
  font-size:15px;line-height:1.2;border:2px solid transparent;cursor:pointer;
  transition:all var(--transition);letter-spacing:.3px;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(30,64,175,.35)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 22px rgba(30,64,175,.4)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(30,64,175,.3)}
.btn-outline{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary);box-shadow:var(--shadow-md)}
.btn-light:hover{background:var(--bg-light);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(245,158,11,.35)}
.btn-accent:hover{background:#d97706;transform:translateY(-2px)}
.btn-lg{padding:16px 40px;font-size:17px;border-radius:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 10px rgba(15,23,42,.05);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;gap:16px;
}
.logo{
  font-size:1.3rem;font-weight:800;color:var(--primary);
  letter-spacing:.5px;white-space:nowrap;display:flex;align-items:center;gap:8px;
}
.logo i{color:var(--accent);font-size:1.4rem}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-link{
  padding:8px 16px;border-radius:var(--radius-sm);
  font-weight:500;font-size:15px;color:var(--text-main);
  transition:all var(--transition);
}
.nav-link:hover{background:#eef2ff;color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff;font-weight:600}
.nav-cta{
  padding:10px 22px;font-size:14px;white-space:nowrap;
}
.hamburger{
  display:none;background:none;border:none;font-size:1.3rem;
  color:var(--text-main);cursor:pointer;padding:8px;border-radius:8px;
  transition:background var(--transition);
}
.hamburger:hover{background:var(--bg-light)}
.mobile-menu{
  display:none;flex-direction:column;padding:0 24px 20px;gap:8px;
}
.mobile-menu a{
  padding:12px 16px;border-radius:var(--radius-md);
  font-weight:500;color:var(--text-main);transition:all var(--transition);
}
.mobile-menu a:hover{background:#eef2ff;color:var(--primary)}
.mobile-menu a.btn-primary{color:#fff;text-align:center}
.mobile-menu.open{display:flex}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--dark-bg);color:#fff;
  padding:100px 0 80px;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;z-index:0;
}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(135deg,rgba(15,23,42,.92) 0%,rgba(15,23,42,.78) 50%,rgba(30,64,175,.65) 100%);
}
.hero-content{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:#fbbf24;padding:6px 16px;border-radius:100px;font-size:13px;font-weight:600;
  margin-bottom:22px;letter-spacing:.5px;
}
.hero-title{
  font-size:2.6rem;line-height:1.25;font-weight:800;
  margin-bottom:22px;letter-spacing:-.5px;
}
.hero-title span{color:var(--accent-light)}
.hero-desc{
  font-size:1.05rem;color:rgba(255,255,255,.85);
  margin-bottom:32px;max-width:540px;line-height:1.8;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-trust{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.7);
}
.hero-trust i{color:var(--accent-light);margin-right:6px}
/* Hero stats */
.hero-stats{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
}
.stat-card{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--radius-lg);padding:24px 20px;text-align:center;
  backdrop-filter:blur(8px);transition:all var(--transition);
}
.stat-card:hover{background:rgba(255,255,255,.16);transform:translateY(-4px)}
.stat-number{font-size:2rem;font-weight:800;color:#fff;line-height:1.2}
.stat-number i{color:var(--accent-light);font-size:1.4rem;margin-right:4px}
.stat-label{font-size:13px;color:rgba(255,255,255,.75);margin-top:6px}

/* ---------- Sections ---------- */
.section{padding:90px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-tag{
  display:inline-block;background:#eef2ff;color:var(--primary);
  padding:4px 14px;border-radius:100px;font-size:13px;font-weight:600;
  margin-bottom:14px;}
.section-title{font-size:2rem;font-weight:800;color:var(--text-main);line-height:1.3;margin-bottom:14px}
.section-desc{font-size:1rem;color:var(--text-muted);line-height:1.8}

/* ---------- Services ---------- */
.services{background:var(--bg-light)}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-card{
  background:#fff;border-radius:var(--radius-lg);padding:36px 28px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:all var(--transition);position:relative;overflow:hidden;
}
.service-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;transition:opacity var(--transition);
}
.service-card:hover{
  transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent;
}
.service-card:hover::before{opacity:1}
.service-icon{
  width:56px;height:56px;border-radius:14px;
  background:#eef2ff;color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;margin-bottom:20px;
}
.service-card:nth-child(2) .service-icon{background:#fef3c7;color:#b45309}
.service-card:nth-child(3) .service-icon{background:#ecfdf5;color:#047857}
.service-title{font-size:1.2rem;font-weight:700;margin-bottom:10px}
.service-desc{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:20px}
.service-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:14px;
  transition:gap var(--transition);
}
.service-link:hover{gap:12px;color:var(--primary-dark)}

/* ---------- Steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{
  text-align:center;padding:30px 20px;border-radius:var(--radius-lg);
  background:#fff;border:1px solid var(--border);position:relative;
  transition:all var(--transition);
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step-num{
  position:absolute;top:16px;left:16px;font-size:2rem;font-weight:800;
  color:var(--border);line-height:1;
}
.step-icon{
  width:60px;height:60px;margin:0 auto 18px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;box-shadow:0 6px 16px rgba(30,64,175,.3);
}
.step-title{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.step-desc{font-size:13px;color:var(--text-muted);line-height:1.7}

/* ---------- News ---------- */
.news-section{background:var(--bg-white)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:block;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:all var(--transition);height:100%;
}
.news-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;
}
.news-card-cover{height:180px;background-size:cover;background-position:center;position:relative}
.news-card-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(15,23,42,.5));
}
.news-card-body{padding:24px}
.news-tag{
  display:inline-block;background:#eef2ff;color:var(--primary);
  font-size:12px;font-weight:600;padding:3px 12px;border-radius:100px;margin-bottom:12px;
}
.news-card h3{font-size:1.05rem;font-weight:700;line-height:1.5;margin-bottom:10px;color:var(--text-main)}
.news-card p{font-size:13px;color:var(--text-muted);line-height:1.7;margin-bottom:14px}
.news-date{font-size:12px;color:var(--text-light);display:flex;align-items:center;gap:6px}
.news-date i{font-size:12px}
.no-data{
  text-align:center;padding:60px 20px;font-size:15px;color:var(--text-muted);
  background:var(--bg-light);border-radius:var(--radius-lg);
}

/* ---------- Compare ---------- */
.compare-section{background:var(--dark-bg);position:relative;overflow:hidden}
.compare-section::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.15;
}
.compare-content{position:relative;z-index:2}
.compare-section .section-title{color:#fff}
.compare-section .section-desc{color:rgba(255,255,255,.7)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:40px}
.compare-col{
  border-radius:var(--radius-lg);padding:36px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(8px);
}
.compare-col.guest{border-color:rgba(255,255,255,.08)}
.compare-col.user{border-color:rgba(245,158,11,.4);background:rgba(245,158,11,.06)}
.compare-head{
  display:flex;align-items:center;gap:14px;margin-bottom:24px;
  font-size:1.2rem;font-weight:700;color:#fff;
}
.compare-head i{font-size:1.5rem}
.compare-col.user .compare-head i{color:var(--accent)}
.compare-item{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);
  font-size:14px;color:rgba(255,255,255,.8);
}
.compare-item:last-child{border-bottom:none}
.compare-item i{color:var(--accent);margin-top:4px;flex-shrink:0}
.compare-col.guest .compare-item i{color:#94a3b8}

/* ---------- Testimonials ---------- */
.testimonials{background:var(--bg-light)}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial-card{
  background:#fff;border-radius:var(--radius-lg);padding:30px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:all var(--transition);
}
.testimonial-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.testimonial-stars{color:var(--accent);font-size:14px;margin-bottom:16px}
.testimonial-text{font-size:14px;color:var(--text-main);line-height:1.8;margin-bottom:20px}
.testimonial-user{display:flex;align-items:center;gap:12px}
.testimonial-avatar{
  width:44px;height:44px;border-radius:50%;background:var(--primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;
}
.testimonial-name{font-size:14px;font-weight:600}
.testimonial-role{font-size:12px;color:var(--text-light)}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:16px;overflow:hidden;transition:all var(--transition);
}
.faq-item:hover{border-color:var(--primary-light)}
.faq-item.is-active{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.faq-question{
  width:100%;background:none;border:none;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  cursor:pointer;text-align:left;font-size:15px;font-weight:600;
  color:var(--text-main);transition:color var(--transition);
}
.faq-question i{transition:transform var(--transition);color:var(--primary);font-size:14px}
.faq-item.is-active .faq-question i{transform:rotate(45deg)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
  font-size:14px;color:var(--text-muted);padding:0 24px;line-height:1.8;
}
.faq-item.is-active .faq-answer{max-height:300px;padding-bottom:20px}

/* ---------- CTA ---------- */
.cta-section{padding:90px 0;position:relative;overflow:hidden}
.cta-card{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:var(--radius-lg);padding:60px;color:#fff;
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-card::before{
  content:'';position:absolute;width:300px;height:300px;border-radius:50%;
  background:rgba(255,255,255,.06);top:-100px;right:-100px;
}
.cta-title{font-size:1.8rem;font-weight:800;margin-bottom:16px;line-height:1.3}
.cta-desc{font-size:15px;color:rgba(255,255,255,.85);line-height:1.8;margin-bottom:28px}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px}
.cta-points li i{color:var(--accent-light)}
.cta-card .btn-light{margin-right:12px}
.cta-form{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-lg);padding:32px;backdrop-filter:blur(8px);
}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;color:rgba(255,255,255,.9)}
.form-input{
  width:100%;padding:12px 16px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.15);
  color:#fff;font-size:15px;outline:none;transition:border-color var(--transition);
}
.form-input::placeholder{color:rgba(255,255,255,.5)}
.form-input:focus{border-color:var(--accent-light);background:rgba(255,255,255,.2)}
.form-row{display:grid;grid-template-columns:1fr auto;gap:10px}
.form-row .form-input{flex:1}
.code-btn{
  background:rgba(255,255,255,.2);color:#fff;border:1px solid rgba(255,255,255,.3);
  padding:0 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;
  cursor:pointer;transition:background var(--transition);
}
.code-btn:hover{background:rgba(255,255,255,.3)}
.form-note{font-size:12px;color:rgba(255,255,255,.6);margin-top:10px;text-align:center}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark-bg);color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-logo{font-size:1.3rem;font-weight:800;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.footer-logo i{color:var(--accent)}
.footer-desc{font-size:14px;line-height:1.8;max-width:360px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px;font-size:14px}
.footer-links a{transition:color var(--transition)}
.footer-links a:hover{color:var(--accent-light)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  font-size:13px;color:rgba(255,255,255,.5);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .hero-content{grid-template-columns:1fr;gap:48px}
  .hero-title{font-size:2.2rem}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .hamburger{display:block}
  .site-header{height:auto}
  .header-inner{height:64px;padding:0 16px}
  .grid-container{padding:0 16px}
  .hero{padding:70px 0 60px}
  .hero-title{font-size:1.7rem}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .stat-number{font-size:1.4rem}
  .section{padding:60px 0}
  .section-title{font-size:1.5rem}
  .services-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr 1fr;gap:16px}
  .compare-grid{grid-template-columns:1fr;gap:24px}
  .testimonials-grid{grid-template-columns:1fr}
  .cta-card{padding:32px 24px}
  .cta-points{flex-direction:column}
  .cta-card .btn-light{margin-right:0;margin-bottom:12px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .hero-title{font-size:1.45rem}
  .hero-desc{font-size:.95rem}
  .hero-actions{flex-direction:column}
  .btn{width:100%}
  .steps-grid{grid-template-columns:1fr}
  .stat-number{font-size:1.2rem}
  .section-head{margin-bottom:36px}
  .section-title{font-size:1.3rem}
  .footer-grid{gap:24px}
}

/* roulang page: category1 */
:root {
  --primary: #FF4D24;
  --primary-dark: #D93A12;
  --primary-light: #FF8A6B;
  --secondary: #0F1B2D;
  --secondary-light: #1B3050;
  --accent: #FFB800;
  --bg: #F7F8FC;
  --bg-light: #FFFFFF;
  --bg-dark: #0F1B2D;
  --text: #161F32;
  --text-muted: #6B7280;
  --border: #E7EAF0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(15, 27, 45, 0.06);
  --shadow-md: 0 6px 24px rgba(15, 27, 45, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 27, 45, 0.12);
  --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: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: 90px 0; }
.section-title { font-size: clamp(28px, 4vw, 38px); font-weight: 800; line-height: 1.3; letter-spacing: -0.5px; color: var(--text); text-align: center; }
.section-subtitle { font-size: 16px; color: var(--text-muted); text-align: center; max-width: 640px; margin: 14px auto 0; line-height: 1.7; }
.text-center { text-align: center; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 30px; border-radius: 50px; font-size: 15px; font-weight: 600; border: 2px solid transparent; cursor: pointer; transition: var(--transition); line-height: 1.4; justify-content: center; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(255, 77, 36, 0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255, 77, 36, 0.4); }
.btn-outline-light { background: transparent; border-color: rgba(255, 255, 255, 0.65); color: #fff; }
.btn-outline-light:hover { border-color: #fff; background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }
.btn-outline-dark { background: transparent; border-color: var(--secondary); color: var(--secondary); }
.btn-outline-dark:hover { background: var(--secondary); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 38px; font-size: 17px; }
.btn-sm { padding: 8px 20px; font-size: 13px; border-radius: 40px; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(231, 234, 240, 0.8); box-shadow: 0 2px 16px rgba(15, 27, 45, 0.04); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 23px; font-weight: 800; color: var(--text); white-space: nowrap; letter-spacing: -0.3px; }
.site-logo i { color: var(--primary); font-size: 22px; }
.site-logo span { background: var(--primary-grad, linear-gradient(135deg, #FF4D24, #FF8A6B)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link { padding: 8px 16px; font-size: 15px; font-weight: 500; color: #4B5563; border-radius: 40px; white-space: nowrap; position: relative; }
.nav-link:hover { color: var(--primary); background: rgba(255, 77, 36, 0.06); }
.nav-link.active { color: var(--primary); font-weight: 600; background: rgba(255, 77, 36, 0.1); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--text); cursor: pointer; width: 40px; height: 40px; border-radius: 8px; }

.hero { position: relative; background: linear-gradient(135deg, rgba(15, 27, 45, 0.92) 0%, rgba(255, 77, 36, 0.78) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat; color: #fff; padding: 110px 0 90px; overflow: hidden; }
.hero-inner { position: relative; z-index: 2; max-width: 860px; margin: 0 auto; text-align: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.18); border: 1px solid rgba(255, 255, 255, 0.35); padding: 8px 20px; border-radius: 40px; font-size: 13px; font-weight: 500; letter-spacing: 0.5px; margin-bottom: 28px; backdrop-filter: blur(8px); }
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: clamp(34px, 5.5vw, 56px); font-weight: 900; line-height: 1.2; letter-spacing: -1px; margin-bottom: 20px; text-shadow: 0 2px 24px rgba(0, 0, 0, 0.2); }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-subtitle { font-size: clamp(15px, 1.6vw, 18px); line-height: 1.8; color: rgba(255, 255, 255, 0.92); max-width: 640px; margin: 0 auto 34px; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }
.hero-tags { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.hero-tags span { background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.2); padding: 6px 16px; border-radius: 30px; font-size: 13px; color: rgba(255, 255, 255, 0.9); backdrop-filter: blur(4px); }
.hero-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 70px; }
.hero-stat { background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.22); border-radius: 20px; padding: 24px 16px; text-align: center; backdrop-filter: blur(10px); transition: var(--transition); }
.hero-stat:hover { background: rgba(255, 255, 255, 0.2); transform: translateY(-4px); }
.hero-stat .num { font-size: 32px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-stat .lbl { font-size: 13px; color: rgba(255, 255, 255, 0.85); margin-top: 4px; }

.process-section { padding: 90px 0; background: var(--bg); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.process-card { background: var(--bg-light); border-radius: var(--radius-lg); padding: 32px 24px; position: relative; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); }
.process-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(255, 77, 36, 0.2); }
.process-num { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 18px; box-shadow: 0 4px 16px rgba(255, 77, 36, 0.3); }
.process-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.process-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.process-card .step-icon { font-size: 28px; color: var(--primary); margin-bottom: 14px; }

.methods-section { padding: 90px 0; background: var(--bg-light); }
.methods-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 48px; }
.method-card { background: #fff; border-radius: var(--radius-lg); padding: 36px 28px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); position: relative; overflow: hidden; }
.method-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: rgba(255, 77, 36, 0.25); }
.method-card .method-icon { width: 60px; height: 60px; border-radius: 16px; background: linear-gradient(135deg, #FF4D24, #FF8A6B); display: flex; align-items: center; justify-content: center; font-size: 26px; color: #fff; margin-bottom: 18px; box-shadow: 0 6px 20px rgba(255, 77, 36, 0.25); }
.method-card.hot { border-color: rgba(255, 77, 36, 0.4); }
.method-badge { position: absolute; top: 18px; right: 18px; background: var(--accent); color: var(--secondary); font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: 20px; }
.method-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.method-card .desc { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.method-features { margin-top: 14px; }
.method-features li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #4B5563; padding: 4px 0; }
.method-features li i { color: #10B981; font-size: 14px; }
.method-tag { display: inline-block; margin-top: 16px; background: rgba(255, 77, 36, 0.08); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 20px; }

.tips-section { padding: 90px 0; background: var(--bg); }
.tips-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 48px; max-width: 960px; margin-left: auto; margin-right: auto; }
.tip-item { display: flex; align-items: flex-start; gap: 14px; background: #fff; padding: 20px 24px; border-radius: var(--radius-md); border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); }
.tip-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.tip-item i { color: var(--accent); font-size: 18px; margin-top: 3px; flex-shrink: 0; }
.tip-item .tip-text { font-size: 15px; color: var(--text); line-height: 1.7; }
.tip-item .tip-text strong { color: var(--text); }

.review-strip { background: var(--secondary); padding: 50px 0; color: #fff; }
.review-inner { display: flex; align-items: center; justify-content: center; gap: 30px; flex-wrap: wrap; }
.avatar-group { display: flex; align-items: center; }
.avatar-group img { width: 44px; height: 44px; border-radius: 50%; border: 2px solid rgba(255, 255, 255, 0.6); object-fit: cover; }
.avatar-group img + img { margin-left: -12px; }
.review-text { max-width: 600px; text-align: center; font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, 0.95); }
.review-text .rating { color: var(--accent); font-size: 16px; letter-spacing: 2px; display: block; margin-bottom: 6px; }

.faq-section { padding: 90px 0; background: var(--bg-light); }
.faq-list { max-width: 840px; margin: 48px auto 0; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(255, 77, 36, 0.25); }
.faq-item.open { box-shadow: var(--shadow-md); border-color: rgba(255, 77, 36, 0.3); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 22px 28px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--text); background: none; border: none; width: 100%; text-align: left; }
.faq-q i { font-size: 16px; color: var(--primary); transition: var(--transition); flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a-inner { padding: 0 28px 22px; font-size: 15px; color: var(--text-muted); line-height: 1.8; }

.cta-section { position: relative; background: linear-gradient(135deg, #0F1B2D 0%, #1B3050 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat; padding: 80px 0; color: #fff; text-align: center; }
.cta-inner { max-width: 680px; margin: 0 auto; position: relative; z-index: 2; }
.cta-inner h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin-bottom: 14px; }
.cta-inner p { font-size: 16px; color: rgba(255, 255, 255, 0.85); margin-bottom: 30px; line-height: 1.8; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: var(--bg-dark); color: #C6D0DB; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; margin-bottom: 44px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-logo i { color: var(--primary); }
.footer-desc { font-size: 14px; line-height: 1.8; color: #9BA7B5; max-width: 340px; }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: #9BA7B5; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 13px; color: #8A99AB; }

@media (max-width: 1024px) {
  .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .methods-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-links { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 24px; box-shadow: 0 12px 32px rgba(15, 27, 45, 0.12); border-bottom: 1px solid var(--border); transform: translateY(-120%); transition: var(--transition); border-radius: 0 0 16px 16px; z-index: 999; }
  .nav-links.open { transform: translateY(0); }
  .nav-link { padding: 12px 16px; font-size: 15px; text-align: left; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .header-actions .btn { display: none; }
  .header-inner { height: 64px; }
}

@media (max-width: 768px) {
  .section-padding { padding: 60px 0; }
  .hero { padding: 80px 0 60px; }
  .hero h1 { font-size: 32px; }
  .hero-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 44px; }
  .hero-stat { padding: 18px 12px; }
  .hero-stat .num { font-size: 24px; }
  .process-grid { grid-template-columns: 1fr; gap: 16px; }
  .methods-grid { grid-template-columns: 1fr; gap: 20px; }
  .tips-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .review-inner { flex-direction: column; gap: 16px; text-align: center; }
  .cta-section { padding: 60px 0; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 27px; }
  .hero-subtitle { font-size: 15px; }
  .hero-btns { flex-direction: column; width: 100%; }
  .hero-btns .btn { width: 100%; }
  .hero-stats-grid { grid-template-columns: 1fr; gap: 10px; }
  .process-card { padding: 24px; }
  .method-card { padding: 28px; }
  .faq-q { padding: 18px 20px; font-size: 15px; }
  .faq-a-inner { padding: 0 20px 18px; }
  .section-title { font-size: 26px; }
  .cta-btns { flex-direction: column; width: 100%; }
  .cta-btns .btn { width: 100%; }
}

/* roulang page: category2 */
:root {
  --primary: #00c9a7;
  --primary-dark: #00a888;
  --secondary: #1a2b4c;
  --accent: #ff6b35;
  --bg: #f5f7fa;
  --bg-alt: #eef2f7;
  --text: #1a2b4c;
  --text-weak: #6b7a90;
  --border: #e3e8ef;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(26, 43, 76, 0.08);
  --shadow-md: 0 6px 20px rgba(26, 43, 76, 0.10);
  --shadow-lg: 0 12px 36px rgba(26, 43, 76, 0.14);
  --transition: 0.25s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); color: var(--text); background: var(--bg); line-height: 1.7; }
img { max-width: 100%; display: block; }
a { color: var(--primary-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.site-header { background: #fff; border-bottom: 1px solid var(--border); padding: 16px 0; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(26, 43, 76, 0.04); }
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.45rem; font-weight: 800; color: var(--secondary); letter-spacing: 0.5px; }
.logo i { color: var(--primary); font-size: 1.5rem; }
.nav-links { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nav-links a { padding: 8px 16px; border-radius: 30px; font-size: 0.9rem; font-weight: 600; color: var(--secondary); border: 1px solid transparent; transition: all var(--transition); }
.nav-links a:hover { background: #f0faf7; color: var(--primary-dark); }
.nav-links a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(0, 201, 167, 0.35); }
.nav-cta { background: var(--secondary); color: #fff !important; padding: 8px 22px !important; border-radius: 30px; font-weight: 600; margin-left: 8px; }
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }
.page-banner { background: linear-gradient(135deg, #0f1923 0%, #1a2b4c 55%, #00a888 130%); color: #fff; padding: 68px 0 56px; position: relative; overflow: hidden; }
.page-banner::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat; opacity: 0.22; }
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 14px; line-height: 1.3; letter-spacing: 0.5px; }
.page-banner p { font-size: 1.05rem; opacity: 0.92; max-width: 720px; }
.page-banner .banner-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.15); border: 1px solid rgba(255, 255, 255, 0.2); padding: 6px 16px; border-radius: 30px; font-size: 0.85rem; margin-bottom: 18px; backdrop-filter: blur(4px); }
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 44px; }
.section-head h2 { font-size: 1.9rem; font-weight: 800; margin-bottom: 12px; color: var(--secondary); }
.section-head p { color: var(--text-weak); font-size: 1rem; }
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); transition: all var(--transition); height: 100%; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #cde6df; }
.card-icon { width: 52px; height: 52px; border-radius: 12px; background: linear-gradient(135deg, #e6f9f4, #c8f0e6); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary-dark); margin-bottom: 16px; }
.card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; color: var(--secondary); }
.card p { color: var(--text-weak); font-size: 0.92rem; line-height: 1.65; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 20px; }
.step-item { text-align: center; padding: 32px 18px; background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: all var(--transition); }
.step-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.step-num { width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 700; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; box-shadow: 0 4px 12px rgba(0, 201, 167, 0.35); }
.step-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 0.86rem; color: var(--text-weak); }
.badge { display: inline-block; background: #f0faf7; color: var(--primary-dark); font-size: 0.8rem; font-weight: 600; padding: 4px 14px; border-radius: 20px; border: 1px solid #cde6df; }
.list-block { list-style: none; }
.list-block li { padding: 12px 0 12px 28px; position: relative; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
.list-block li:last-child { border-bottom: none; }
.list-block li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 12px; color: var(--primary); font-size: 0.85rem; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: box-shadow var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-q { padding: 20px 24px; font-weight: 700; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 0.98rem; }
.faq-q i { color: var(--primary); transition: transform 0.3s ease; }
.faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; color: var(--text-weak); font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-a { padding: 0 24px 20px; max-height: 300px; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.cta-section { background: linear-gradient(135deg, #00a888, #00c9a7); padding: 64px 0; text-align: center; color: #fff; position: relative; }
.cta-section h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 14px; }
.cta-section p { font-size: 1.05rem; opacity: 0.92; margin-bottom: 30px; }
.btn { display: inline-block; padding: 14px 42px; border-radius: 40px; font-weight: 700; font-size: 1rem; border: none; cursor: pointer; transition: all var(--transition); text-align: center; }
.btn-primary { background: #fff; color: var(--primary-dark); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2); color: var(--primary-dark); }
.btn-outline { background: transparent; border: 2px solid #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--primary-dark); transform: translateY(-2px); }
.site-footer { background: var(--secondary); color: rgba(255, 255, 255, 0.8); padding: 52px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 32px; }
.footer-logo { font-size: 1.25rem; font-weight: 700; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-logo i { color: var(--primary); }
.footer-desc { font-size: 0.88rem; line-height: 1.7; opacity: 0.7; max-width: 420px; }
.footer-title { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 14px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: rgba(255, 255, 255, 0.65); font-size: 0.88rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 20px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 0.8rem; opacity: 0.5; }
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 768px) {
  .header-inner { flex-direction: column; padding: 12px 16px; }
  .nav-links { justify-content: center; gap: 4px; }
  .nav-links a { font-size: 0.82rem; padding: 6px 12px; }
  .nav-cta { margin-left: 0; }
  .page-banner h1 { font-size: 1.7rem; }
  .section { padding: 52px 0; }
  .section-head h2 { font-size: 1.5rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .step-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .page-banner { padding: 44px 0 36px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-links { flex-wrap: wrap; row-gap: 6px; }
  .nav-links a { padding: 6px 10px; font-size: 0.78rem; }
  .page-banner h1 { font-size: 1.4rem; }
  .page-banner p { font-size: 0.9rem; }
  .btn { padding: 12px 28px; font-size: 0.92rem; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}

/* roulang page: article */
:root{
--primary:#0891B2;--primary-dark:#0E7490;--primary-darker:#155E75;
--primary-light:#A5F3FC;--primary-bg:#ECFEFF;
--grad-primary:linear-gradient(135deg,#06B6D4 0%,#0891B2 50%,#0E7490 100%);
--accent:#F97316;--accent-dark:#EA580C;--accent-light:#FFEDD5;
--grad-accent:linear-gradient(135deg,#FBBF24 0%,#F97316 100%);
--dark:#0F172A;--text:#1E293B;--muted:#64748B;--bg:#F8FAFC;--white:#FFFFFF;
--border:#E2E8F0;--radius:14px;--radius-lg:22px;--radius-sm:8px;
--shadow-sm:0 2px 10px rgba(2,6,23,.05);
--shadow:0 8px 30px rgba(2,6,23,.08);
--shadow-lg:0 20px 60px rgba(2,6,23,.14);
--transition:all .3s cubic-bezier(.4,0,.2,1);
--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--white);margin:0;padding:0;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:inline-block;vertical-align:middle}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;border:none;background:none;cursor:pointer}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--border);box-shadow:0 1px 0 rgba(2,6,23,.02),0 2px 12px rgba(2,6,23,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand-logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--dark);white-space:nowrap}
.brand-logo i{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--grad-primary);color:#fff;border-radius:12px;font-size:1.1rem;box-shadow:0 4px 12px rgba(8,145,178,.35)}
.brand-logo:hover{color:var(--primary-dark)}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-link{display:inline-flex;align-items:center;height:40px;padding:0 18px;font-size:.95rem;font-weight:500;color:var(--text);border-radius:100px;position:relative;white-space:nowrap}
.nav-link:hover{color:var(--primary);background:var(--primary-bg)}
.nav-link.active{color:var(--primary-dark);background:var(--primary-bg);font-weight:600}
.nav-link.active::after{content:'';position:absolute;left:18px;right:18px;bottom:4px;height:2px;border-radius:2px;background:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-header{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 22px;border-radius:100px;background:var(--grad-primary);color:#fff;font-size:.9rem;font-weight:600;box-shadow:0 4px 14px rgba(8,145,178,.35);transition:var(--transition)}
.btn-header:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(8,145,178,.45);color:#fff}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;background:var(--bg);color:var(--dark);font-size:1.2rem;transition:var(--transition)}
.nav-toggle.is-open{background:var(--primary);color:#fff}
.mobile-menu{display:none;flex-direction:column;padding:10px 20px 20px;background:var(--white);border-top:1px solid var(--border)}
.mobile-menu a{padding:14px 16px;font-weight:500;font-size:1rem;color:var(--text);border-radius:12px}
.mobile-menu a:hover,.mobile-menu a.active{background:var(--primary-bg);color:var(--primary-dark)}
.mobile-menu .mobile-cta{margin-top:8px;background:var(--grad-primary);color:#fff;text-align:center;font-weight:600;box-shadow:0 4px 14px rgba(8,145,178,.3)}
.mobile-menu .mobile-cta:hover{color:#fff;transform:translateY(-1px)}
.article-hero{position:relative;min-height:420px;display:flex;align-items:center;background-size:cover;background-position:center}
.article-hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(2,6,23,.88) 0%,rgba(2,6,23,.65) 55%,rgba(8,145,178,.55) 100%)}
.article-hero-content{position:relative;z-index:1;padding:80px 20px;color:#fff;max-width:900px;margin-left:auto;margin-right:auto}
.breadcrumb-row{display:flex;align-items:center;gap:10px;font-size:.9rem;color:rgba(255,255,255,.7);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb-row a{color:rgba(255,255,255,.8)}
.breadcrumb-row a:hover{color:#fff}
.bc-sep{color:rgba(255,255,255,.4)}
.bc-current{color:var(--primary-light)}
.article-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.15);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);color:#fff;padding:6px 16px;border-radius:100px;font-size:.85rem;font-weight:600;margin-bottom:20px}
.article-hero-content h1{font-size:2.4rem;font-weight:800;line-height:1.3;margin:0 0 24px;letter-spacing:-.02em;color:#fff}
.article-meta{display:flex;align-items:center;gap:20px;font-size:.9rem;color:rgba(255,255,255,.75);flex-wrap:wrap}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--primary-light)}
.article-wrapper{padding:48px 20px;max-width:1200px;margin:0 auto}
.article-main-col{padding-right:20px}
.article-body{background:var(--white);border-radius:var(--radius-lg);padding:44px 48px;box-shadow:var(--shadow);border:1px solid var(--border)}
.article-body>*:first-child{margin-top:0}
.article-body p{font-size:1.05rem;line-height:1.9;margin:0 0 1.4rem;color:#334155}
.article-body h2{font-size:1.55rem;font-weight:700;color:var(--dark);margin:2.4rem 0 1.2rem;padding-left:16px;border-left:4px solid var(--primary);line-height:1.4}
.article-body h3{font-size:1.25rem;font-weight:700;color:var(--dark);margin:1.8rem 0 .8rem}
.article-body h4{font-size:1.1rem;font-weight:700;color:var(--dark);margin:1.5rem 0 .6rem}
.article-body ul,.article-body ol{margin:0 0 1.4rem 1.2rem;padding-left:1.2rem}
.article-body ul li,.article-body ol li{margin-bottom:.5rem;line-height:1.8}
.article-body ul li::marker{color:var(--primary)}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--primary-dark)}
.article-body img{border-radius:var(--radius);box-shadow:var(--shadow);margin:1.5rem 0}
.article-body blockquote{margin:1.5rem 0;padding:18px 24px;background:var(--primary-bg);border-left:4px solid var(--primary);border-radius:0 var(--radius) var(--radius) 0;color:var(--dark)}
.article-body blockquote p{margin:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.5rem 0}
.article-body table th,.article-body table td{padding:12px 16px;border:1px solid var(--border);text-align:left}
.article-body table th{background:var(--bg);font-weight:600}
.article-body code{background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:6px;font-size:.9em}
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding:20px 24px;background:var(--bg);border-radius:var(--radius);border:1px solid var(--border)}
.tag-label{font-weight:600;color:var(--dark);font-size:.9rem}
.tag-link{display:inline-flex;align-items:center;padding:6px 14px;background:var(--white);border:1px solid var(--border);border-radius:100px;font-size:.85rem;font-weight:500;color:var(--text);transition:var(--transition)}
.tag-link:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-bg)}
.article-side-col{padding-left:6px}
.side-card{background:var(--white);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:28px 24px;margin-bottom:24px;transition:var(--transition)}
.side-card:hover{box-shadow:var(--shadow)}
.side-cta{background:var(--grad-primary);color:#fff;border:none;text-align:center;position:relative;overflow:hidden}
.side-cta::before{content:'';position:absolute;top:-40%;right:-40%;width:120%;height:120%;background:radial-gradient(circle,rgba(255,255,255,.15) 0%,transparent 60%)}
.side-cta-icon{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin:0 auto 16px;position:relative;z-index:1}
.side-cta h3{font-size:1.25rem;font-weight:700;margin-bottom:10px;position:relative;z-index:1}
.side-cta p{font-size:.9rem;color:rgba(255,255,255,.85);margin-bottom:20px;line-height:1.7;position:relative;z-index:1}
.btn-side-cta{display:inline-flex;align-items:center;gap:8px;background:var(--white);color:var(--primary-dark);padding:10px 28px;border-radius:100px;font-weight:700;font-size:.9rem;box-shadow:0 4px 16px rgba(2,6,23,.15);transition:var(--transition);position:relative;z-index:1}
.btn-side-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(2,6,23,.2)}
.side-title{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:18px}
.side-title i{color:var(--primary)}
.side-links{display:flex;flex-direction:column;gap:4px}
.side-link{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:10px;font-weight:500;font-size:.92rem;color:var(--text);transition:var(--transition)}
.side-link i:first-child{color:var(--primary);width:20px;text-align:center}
.side-link i:last-child{margin-left:auto;font-size:.75rem;color:var(--muted);opacity:0;transition:var(--transition)}
.side-link:hover{background:var(--primary-bg);color:var(--primary-dark)}
.side-link:hover i:last-child{opacity:1;transform:translateX(3px)}
.side-tips p{display:flex;align-items:flex-start;gap:10px;font-size:.88rem;color:var(--muted);margin-bottom:12px;line-height:1.6}
.side-tips p i{color:var(--primary);margin-top:4px}
.side-tips p:last-child{margin-bottom:0}
.not-found{background:var(--white);border-radius:var(--radius-lg);padding:60px 40px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border)}
.not-found-icon{width:80px;height:80px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--primary);background:var(--primary-bg);border-radius:50%}
.not-found h2{font-size:1.5rem;font-weight:700;margin-bottom:12px;color:var(--dark)}
.not-found p{color:var(--muted);margin-bottom:28px}
.btn-primary{display:inline-flex;align-items:center;gap:10px;padding:14px 34px;background:var(--grad-primary);color:#fff;border-radius:100px;font-weight:600;box-shadow:0 8px 24px rgba(8,145,178,.35);transition:var(--transition)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(8,145,178,.45);color:#fff}
.related-section{padding:80px 0;background:var(--bg)}
.section-header{text-align:center;margin-bottom:48px}
.section-eyebrow{display:inline-block;padding:6px 18px;background:var(--primary-bg);color:var(--primary-dark);border-radius:100px;font-size:.85rem;font-weight:600;letter-spacing:.05em;margin-bottom:12px}
.section-header h2{font-size:2rem;font-weight:800;color:var(--dark);margin-bottom:12px;letter-spacing:-.02em}
.section-header p{color:var(--muted);font-size:1rem;max-width:640px;margin:0 auto}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:var(--transition)}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.related-img{position:relative;height:200px;overflow:hidden}
.related-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .related-img img{transform:scale(1.05)}
.related-tag{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:6px 14px;border-radius:100px;font-size:.8rem;font-weight:600;color:var(--dark);box-shadow:0 2px 8px rgba(2,6,23,.08)}
.related-body{padding:24px}
.related-body h3{font-size:1.15rem;font-weight:700;color:var(--dark);margin-bottom:10px}
.related-body p{font-size:.92rem;color:var(--muted);line-height:1.7;margin-bottom:16px}
.related-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem;color:var(--primary);transition:var(--transition)}
.related-link:hover{color:var(--primary-dark);gap:12px}
.faq-section{padding:80px 0;background:var(--white)}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--primary-light);box-shadow:var(--shadow)}
.faq-item[open]{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-item summary{display:flex;align-items:center;gap:14px;padding:20px 24px;cursor:pointer;font-weight:600;font-size:1rem;color:var(--dark);list-style:none;transition:var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .fa-question-circle{color:var(--primary);font-size:1.2rem;flex-shrink:0}
.faq-item summary .faq-arrow{margin-left:auto;font-size:.8rem;color:var(--muted);transition:transform .3s ease;flex-shrink:0}
.faq-item[open] summary .faq-arrow{transform:rotate(180deg)}
.faq-answer{padding:0 24px 20px 58px;color:var(--muted);font-size:.95rem;line-height:1.8}
.faq-answer p{margin:0}
.cta-section{position:relative;padding:80px 0;background-size:cover;background-position:center}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(2,6,23,.9) 0%,rgba(8,145,178,.75) 100%)}
.cta-inner{position:relative;z-index:1;text-align:center;color:#fff;padding:20px 0}
.cta-inner h2{font-size:2.2rem;font-weight:800;margin-bottom:16px;letter-spacing:-.02em}
.cta-inner p{font-size:1.1rem;color:rgba(255,255,255,.85);max-width:600px;margin:0 auto 32px}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-cta-primary{display:inline-flex;align-items:center;gap:10px;padding:14px 36px;background:var(--grad-accent);color:#fff;border-radius:100px;font-weight:700;font-size:1rem;box-shadow:0 8px 24px rgba(249,115,22,.4);transition:var(--transition)}
.btn-cta-primary:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(249,115,22,.5);color:#fff}
.btn-cta-ghost{display:inline-flex;align-items:center;gap:10px;padding:14px 36px;background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);border-radius:100px;font-weight:600;font-size:1rem;transition:var(--transition)}
.btn-cta-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;transform:translateY(-3px)}
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:28px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:1.4rem;font-weight:800;color:#fff;margin-bottom:14px}
.footer-logo i{width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:var(--grad-primary);border-radius:10px;font-size:1rem;color:#fff}
.footer-desc{font-size:.9rem;line-height:1.8;color:rgba(255,255,255,.55);max-width:360px;margin:0}
.footer-title{color:#fff;font-size:1rem;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.6);font-size:.9rem;transition:var(--transition)}
.footer-links a:hover{color:var(--primary-light);transform:translateX(4px)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:rgba(255,255,255,.4);flex-wrap:wrap;gap:8px}
@media screen and (max-width:1024px){
.article-hero-content h1{font-size:2.1rem}
.article-body{padding:32px 28px}
.related-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:768px){
.nav-links{display:none}
.nav-toggle{display:flex}
.mobile-menu.open{display:flex}
.article-hero{min-height:340px}
.article-hero-content{padding:60px 20px}
.article-hero-content h1{font-size:1.7rem}
.article-wrapper{padding:32px 16px}
.article-main-col{padding-right:0}
.article-side-col{padding-left:0;margin-top:28px}
.article-body{padding:24px 20px}
.related-grid{grid-template-columns:1fr;gap:20px}
.faq-section,.related-section,.cta-section{padding:56px 0}
.cta-inner h2{font-size:1.7rem}
.cta-btns{flex-direction:column;align-items:center}
.btn-cta-primary,.btn-cta-ghost{width:100%;max-width:300px;justify-content:center}
.footer-grid{grid-template-columns:1fr;gap:32px}
.footer-bottom{flex-direction:column;text-align:center}
.section-header h2{font-size:1.6rem}
.section-header{margin-bottom:32px}
.article-badge{margin-bottom:14px}
}
@media screen and (max-width:520px){
.header-inner{height:62px;gap:12px}
.brand-logo{font-size:1.15rem}
.brand-logo i{width:34px;height:34px;font-size:.9rem}
.btn-header{display:none}
.article-hero-content h1{font-size:1.4rem}
.article-meta{flex-direction:column;align-items:flex-start;gap:8px}
.article-body p{font-size:1rem}
.article-body h2{font-size:1.3rem}
.related-img{height:170px}
.faq-item summary{padding:16px 18px;font-size:.95rem}
.faq-answer{padding:0 18px 18px 46px}
.cta-inner h2{font-size:1.5rem}
.cta-inner p{font-size:1rem}
.footer-logo{font-size:1.2rem}
}

/* roulang page: category3 */
:root {
            --primary: #1b2a4a;
            --primary-dark: #0f1e3d;
            --primary-light: #2d4070;
            --accent: #f5b63f;
            --accent-dark: #d99a1f;
            --success: #10b981;
            --bg: #f4f6fb;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(27, 42, 74, 0.08);
            --shadow-lg: 0 20px 40px rgba(27, 42, 74, 0.12);
            --transition: all 0.3s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: 16px;
        }
        .grid-container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(245, 182, 63, 0.12);
            color: var(--accent-dark);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 6px 20px;
            border-radius: 40px;
            margin-bottom: 16px;
            border: 1px solid rgba(245, 182, 63, 0.25);
        }
        .section-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 50px;
            transition: var(--transition);
            line-height: 1.4;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 8px 20px rgba(245, 182, 63, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(245, 182, 63, 0.45);
            color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(27, 42, 74, 0.25);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(27, 42, 74, 0.35);
            color: #fff;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 24px;
            background: rgba(245, 182, 63, 0.12);
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .site-logo:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(27, 42, 74, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(27, 42, 74, 0.08);
            font-weight: 600;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 30px;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(27, 42, 74, 0.25);
            color: #fff;
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(27, 42, 74, 0.06);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .menu-toggle:hover {
            background: rgba(27, 42, 74, 0.1);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 30, 61, 0.88), rgba(27, 42, 74, 0.78)),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
            padding: 120px 0 140px;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(245, 182, 63, 0.25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 182, 63, 0.15);
            border: 1px solid rgba(245, 182, 63, 0.4);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 40px;
            margin-bottom: 24px;
            animation: fadeInUp 0.6s ease;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            animation: fadeInUp 0.7s ease;
        }
        .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin-bottom: 36px;
            animation: fadeInUp 0.8s ease;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
            animation: fadeInUp 0.9s ease;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            animation: fadeInUp 1s ease;
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust i {
            color: var(--accent);
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg-white);
            padding: 80px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-dark));
            opacity: 0;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .stat-card:hover::before {
            opacity: 1;
        }
        .stat-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: rgba(27, 42, 74, 0.06);
            color: var(--primary);
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            transition: var(--transition);
        }
        .stat-card:hover .stat-icon {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 15px;
            color: var(--text-light);
        }

        /* ===== Services ===== */
        .services-section {
            background: var(--bg);
        }
        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border);
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .service-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(27, 42, 74, 0.05);
            color: var(--primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .service-card:hover .icon-wrap {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .service-tag {
            display: inline-block;
            background: rgba(245, 182, 63, 0.1);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid rgba(245, 182, 63, 0.2);
        }

        /* ===== Scenarios ===== */
        .scenarios-section {
            background: var(--bg-white);
        }
        .scenario-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            height: 100%;
            transition: var(--transition);
        }
        .scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .scenario-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scenario-card:hover .scenario-image img {
            transform: scale(1.06);
        }
        .scenario-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 30, 61, 0.35), transparent 60%);
        }
        .scenario-body {
            padding: 28px;
        }
        .scenario-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .scenario-body p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .scenario-tag {
            display: inline-block;
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
        }

        /* ===== Process ===== */
        .process-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .process-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 182, 63, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .process-section .section-tag {
            background: rgba(245, 182, 63, 0.15);
            color: var(--accent);
            border-color: rgba(245, 182, 63, 0.3);
        }
        .process-section .section-title {
            color: #fff;
        }
        .process-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }
        .process-step {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .process-step:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }
        .process-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(245, 182, 63, 0.3);
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
        }

        /* ===== News ===== */
        .news-section {
            background: var(--bg);
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid var(--border);
            display: flex;
            gap: 20px;
            transition: var(--transition);
            align-items: flex-start;
        }
        .news-card:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .news-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(245, 182, 63, 0.1);
            color: var(--accent-dark);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .news-card .news-date {
            font-size: 13px;
            color: var(--text-light);
            font-weight: 500;
            display: block;
            margin-bottom: 6px;
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .news-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item.active {
            border-color: rgba(27, 42, 74, 0.2);
            box-shadow: var(--shadow);
        }
        .accordion-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .accordion-header:hover {
            background: rgba(27, 42, 74, 0.02);
        }
        .accordion-header .icon-wrap {
            color: var(--accent);
            font-size: 14px;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(245, 182, 63, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .accordion-item.active .accordion-header .icon-wrap {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary-dark);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .accordion-content-inner {
            padding: 0 24px 24px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 30, 61, 0.92), rgba(27, 42, 74, 0.85)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            padding: 90px 0;
            text-align: center;
        }
        .cta-content {
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-content p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-logo i {
            color: var(--accent);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }
            .hero {
                padding: 100px 0 120px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 14px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 14px 0;
                gap: 12px;
            }
            .site-header {
                position: relative;
            }
            .site-logo {
                font-size: 18px;
            }
            .site-logo i {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
            .menu-toggle {
                display: flex;
                margin-left: auto;
            }
            .header-cta {
                display: none;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                padding: 12px;
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 8px;
            }
            .hero {
                padding: 80px 0 100px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 28px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 28px 16px;
            }
            .stat-number {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
            .cta-content h2 {
                font-size: 28px;
            }
            .news-card {
                flex-direction: row;
                padding: 24px;
            }
            .scenario-image {
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .hero {
                padding: 60px 0 80px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .service-card {
                padding: 24px 20px;
            }
            .scenario-body {
                padding: 20px;
            }
            .accordion-header {
                padding: 16px 18px;
                font-size: 15px;
            }
            .accordion-content-inner {
                padding: 12px 18px 18px;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-content h2 {
                font-size: 24px;
            }
            .cta-actions {
                flex-direction: column;
            }
        }