/* roulang page: index */
:root {
  --primary: #A8E63B;
  --primary-dark: #76B526;
  --accent-gold: #F6C453;
  --accent-cyan: #4EC9E1;
  --bg-dark: #0B0E12;
  --bg-panel: #14181E;
  --bg-overlay: #1C222A;
  --text-main: #EEF2F6;
  --text-sub: #9DA8B4;
  --text-weak: #6C7884;
  --border: rgba(255,255,255,0.08);
  --border-neon: rgba(168,230,59,0.45);
  --error: #FF5D5D;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-neon: 0 0 0 1px rgba(168,230,59,0.4), 0 12px 40px rgba(168,230,59,0.12);
  --glow: 0 0 12px rgba(168,230,59,0.35);
  --transition: 200ms cubic-bezier(0.2,0.8,0.2,1);
  --container: 1200px;
  --font-num: "DIN Alternate", "Bahnschrift", "Oswald", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.section { padding: 80px 0; position: relative; }
.section-panel { background-color: var(--bg-panel); }
.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 48px;
}
.section-header h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.5px; line-height: 1.3; }
.section-header .subtitle { color: var(--text-sub); margin-top: 8px; font-size: 15px; }
.section-header .view-all {
  color: var(--accent-cyan); font-size: 14px; border-bottom: 1px solid transparent;
  white-space: nowrap;
}
.section-header .view-all:hover { border-color: var(--accent-cyan); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 15px;
  cursor: pointer; border: 1px solid transparent; transition: all var(--transition);
  line-height: 1.4; gap: 8px; white-space: nowrap;
}
.btn-primary {
  background: var(--primary); color: #0B0E12; border-color: var(--primary);
  box-shadow: 0 0 0 rgba(168,230,59,0);
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 20px rgba(168,230,59,0.35), 0 4px 16px rgba(168,230,59,0.15);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-outline {
  background: transparent; color: var(--text-main); border-color: rgba(255,255,255,0.25);
}
.btn-outline:hover {
  border-color: var(--primary); color: var(--primary);
  box-shadow: 0 0 12px rgba(168,230,59,0.15);
}
.btn-outline:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-lg { padding: 16px 38px; font-size: 17px; }
.btn-block { width: 100%; }
.btn .arrow { transition: transform var(--transition); }
.btn:hover .arrow { transform: translateX(4px); }

/* Badge & Tags */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: var(--radius-sm);
  font-size: 12px; font-weight: 600; letter-spacing: 0.3px;
  background: rgba(168,230,59,0.1); color: var(--primary);
  border: 1px solid rgba(168,230,59,0.3);
}
.badge-cyan {
  background: rgba(78,201,225,0.1); color: var(--accent-cyan); border-color: rgba(78,201,225,0.3);
}
.badge-gold {
  background: rgba(246,196,83,0.1); color: var(--accent-gold); border-color: rgba(246,196,83,0.3);
}

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 64px;
  background: rgba(11,14,18,0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header::after {
  content: "";
  position: absolute; bottom: -1px; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(168,230,59,0.5), transparent);
  box-shadow: 0 0 8px rgba(168,230,59,0.2);
  pointer-events: none;
}
.nav-wrap {
  display: flex; align-items: center; gap: 40px; height: 64px;
  position: relative;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 8px; background: rgba(168,230,59,0.1); border: 1px solid rgba(168,230,59,0.2);
}
.brand-icon svg { width: 20px; height: 20px; }
.brand-text { font-size: 17px; font-weight: 700; letter-spacing: -0.2px; white-space: nowrap; }
.brand-text b { color: var(--primary); font-weight: 700; text-shadow: 0 0 8px rgba(168,230,59,0.4); }
.main-nav { flex: 1; display: flex; justify-content: flex-end; }
.main-nav ul { display: flex; gap: 28px; }
.main-nav a {
  display: block; padding: 20px 2px; font-size: 15px; color: var(--text-sub);
  position: relative; transition: color var(--transition);
}
.main-nav a::after {
  content: ""; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--primary); border-radius: 2px;
  box-shadow: 0 0 8px rgba(168,230,59,0.6); transition: width var(--transition);
}
.main-nav a:hover { color: var(--text-main); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--primary); text-shadow: 0 0 10px rgba(168,230,59,0.35); }
.main-nav a.active::after { width: 100%; }
.nav-cta { margin-left: 8px; flex-shrink: 0; }
.nav-cta .btn { padding: 10px 22px; font-size: 14px; }

.hamburger {
  display: none; width: 40px; height: 40px; background: transparent; border: none;
  cursor: pointer; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  border-radius: 6px;
}
.hamburger span {
  display: block; width: 20px; height: 2px; background: var(--primary);
  border-radius: 2px; transition: all var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  padding: 120px 0 80px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center center;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,14,18,0.6) 0%, rgba(11,14,18,0.55) 50%, var(--bg-dark) 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px;
  border: 1px solid rgba(168,230,59,0.35); border-radius: 20px;
  background: rgba(168,230,59,0.08); color: var(--accent-cyan);
  font-size: 13px; font-weight: 600; margin-bottom: 28px;
  backdrop-filter: blur(4px);
}
.hero-badge .status-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--primary);
  box-shadow: 0 0 6px rgba(168,230,59,0.8); animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.hero h1 {
  font-size: 56px; font-weight: 800; line-height: 1.2; letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero h1 .highlight {
  color: var(--primary); text-shadow: 0 0 30px rgba(168,230,59,0.35);
}
.hero-sub {
  font-size: 18px; color: var(--text-sub); line-height: 1.8;
  max-width: 560px; margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-metrics {
  display: flex; gap: 56px; flex-wrap: wrap;
  border-left: 1px solid rgba(255,255,255,0.12); padding-left: 32px;
}
.hero-metrics .metric { display: flex; flex-direction: column; gap: 2px; }
.hero-metrics strong {
  font-family: var(--font-num); font-size: 34px; font-weight: 700; color: var(--primary);
  line-height: 1.2;
}
.hero-metrics .metric span { font-size: 13px; color: var(--text-weak); }

/* Pain Section */
.pain-section { background: var(--bg-panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.pain-card {
  display: flex; gap: 18px; padding: 32px;
  background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: all var(--transition);
}
.pain-card:hover { border-color: rgba(168,230,59,0.25); box-shadow: var(--shadow-card); transform: translateY(-2px); }
.pain-icon {
  width: 52px; height: 52px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(168,230,59,0.08); border-radius: var(--radius-sm);
  color: var(--primary); font-size: 26px; font-weight: 800;
  border: 1px solid rgba(168,230,59,0.15);
}
.pain-body h3 { font-size: 18px; margin-bottom: 8px; font-weight: 600; }
.pain-body p { font-size: 14px; color: var(--text-sub); line-height: 1.6; margin-bottom: 10px; }
.pain-link { font-size: 14px; color: var(--accent-cyan); display: inline-flex; align-items: center; gap: 4px; }
.pain-link:hover { color: var(--primary); }
.pain-link .arrow { transition: transform var(--transition); }
.pain-link:hover .arrow { transform: translateX(4px); }

/* Solutions */
.solution-list { display: flex; flex-direction: column; gap: 40px; }
.solution-card {
  display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center;
  background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 48px;
  position: relative; overflow: hidden;
  transition: all var(--transition);
}
.solution-card:hover {
  border-color: rgba(168,230,59,0.35);
  box-shadow: var(--shadow-neon);
  transform: translateY(-4px);
}
.solution-card:nth-child(even) { grid-template-columns: auto 1fr; }
.solution-card:nth-child(even) .solution-info { order: 2; }
.solution-card:nth-child(even) .solution-media { order: 1; }
.solution-num {
  position: absolute; top: -20px; right: 20px;
  font-family: var(--font-num); font-size: 120px; font-weight: 700;
  color: rgba(168,230,59,0.08); line-height: 1; pointer-events: none;
  transition: color var(--transition);
}
.solution-card:hover .solution-num { color: rgba(168,230,59,0.16); }
.solution-info { position: relative; z-index: 2; }
.solution-info h3 { font-size: 24px; margin-bottom: 12px; font-weight: 700; }
.solution-info > p { color: var(--text-sub); margin-bottom: 20px; font-size: 15px; }
.solution-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.solution-features li {
  display: flex; align-items: flex-start; gap: 8px; font-size: 15px; color: var(--text-main);
}
.solution-features li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); margin-top: 10px; flex-shrink: 0;
  box-shadow: 0 0 6px rgba(168,230,59,0.5);
}
.solution-media {
  width: 220px; height: 180px; border-radius: var(--radius-md);
  overflow: hidden; position: relative;
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.solution-media img { width: 100%; height: 100%; object-fit: cover; }

/* Stats */
.stats-section { background: var(--bg-dark); position: relative; overflow: hidden; }
.stats-section::before {
  content: ""; position: absolute; top: -80px; right: -80px;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(246,196,83,0.08) 0%, transparent 70%);
}
.stats-section::after {
  content: ""; position: absolute; bottom: -60px; left: -60px;
  width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(168,230,59,0.06) 0%, transparent 70%);
}
.stats-wrap {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 64px; align-items: center;
  position: relative; z-index: 2;
}
.stats-header h2 { font-size: 32px; margin-bottom: 12px; }
.stats-header p { color: var(--text-sub); font-size: 15px; max-width: 420px; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 40px; }
.stat-item { padding-left: 16px; border-left: 2px solid var(--primary); }
.stat-item strong {
  font-family: var(--font-num); font-size: 52px; font-weight: 700; color: var(--accent-gold);
  line-height: 1.1; display: block;
  text-shadow: 0 0 20px rgba(246,196,83,0.2);
}
.stat-item span { font-size: 14px; color: var(--text-sub); }
.stat-note { margin-top: 24px; font-size: 13px; color: var(--text-weak); }
.stats-media {
  border-radius: var(--radius-lg); overflow: hidden; height: 320px;
  border: 1px solid var(--border); box-shadow: var(--shadow-card);
}
.stats-media img { width: 100%; height: 100%; object-fit: cover; }

/* CTA Stripe */
.cta-stripe {
  padding: 48px 0; background: var(--bg-panel);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.cta-box {
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  background: linear-gradient(135deg, rgba(168,230,59,0.06) 0%, transparent 50%),
              var(--bg-dark);
  border: 1px solid var(--border-neon); border-radius: var(--radius-lg);
  padding: 42px 48px;
  box-shadow: 0 0 24px rgba(168,230,59,0.05), var(--shadow-card);
}
.cta-box h3 { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.cta-box p { color: var(--text-sub); font-size: 15px; }

/* Privacy */
.privacy-section { background: var(--bg-dark); }
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.privacy-card {
  padding: 36px 32px; background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: border-color var(--transition);
}
.privacy-card:hover { border-color: rgba(168,230,59,0.2); }
.privacy-icon {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  background: rgba(168,230,59,0.08); border-radius: 8px; margin-bottom: 16px;
  color: var(--primary);
}
.privacy-icon.cyan { background: rgba(78,201,225,0.08); color: var(--accent-cyan); }
.privacy-icon.gold { background: rgba(246,196,83,0.08); color: var(--accent-gold); }
.privacy-card h3 { font-size: 16px; margin-bottom: 8px; font-weight: 600; }
.privacy-card p { font-size: 14px; color: var(--text-sub); line-height: 1.6; }
.privacy-link {
  display: inline-block; margin-top: 20px; font-size: 13px; color: var(--accent-cyan);
  border-bottom: 1px solid transparent;
}
.privacy-link:hover { border-color: var(--accent-cyan); }

/* FAQ */
.faq-section { background: var(--bg-panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 0 24px;
  transition: border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.faq-item.active {
  border-color: rgba(168,230,59,0.4);
  box-shadow: 0 0 12px rgba(168,230,59,0.08);
}
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0; cursor: pointer; font-size: 16px; font-weight: 500;
  color: var(--text-main); user-select: none;
}
.faq-question .faq-icon {
  width: 28px; height: 28px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 50%;
  transition: all var(--transition); font-size: 16px;
}
.faq-item.active .faq-icon {
  border-color: var(--primary); color: var(--primary);
  transform: rotate(45deg); background: rgba(168,230,59,0.08);
}
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 240ms cubic-bezier(0.2,0.8,0.2,1);
}
.faq-item.active .faq-answer { max-height: 240px; }
.faq-answer p {
  padding: 0 0 20px; color: var(--text-sub); font-size: 14px; line-height: 1.7;
}

/* News CMS */
.news-section { background: var(--bg-dark); }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
  display: grid; grid-template-columns: 96px 1fr; gap: 24px;
  background: var(--bg-panel); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 24px;
  transition: all var(--transition); align-items: center;
}
.news-item:hover {
  border-color: rgba(168,230,59,0.25);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.news-thumb {
  width: 96px; height: 96px; border-radius: var(--radius-sm);
  overflow: hidden; flex-shrink: 0; background: var(--bg-overlay);
  border: 1px solid var(--border);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.news-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.news-meta time { font-size: 13px; color: var(--text-weak); }
.news-body h3 {
  font-size: 18px; font-weight: 600; line-height: 1.4;
  overflow: hidden; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical;
}
.news-body p {
  font-size: 14px; color: var(--text-sub); line-height: 1.6;
  overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.read-more {
  font-size: 14px; color: var(--accent-cyan); display: inline-flex; align-items: center; gap: 4px;
  align-self: flex-start; margin-top: 4px;
}
.read-more:hover { color: var(--primary); }
.read-more .arrow { transition: transform var(--transition); }
.read-more:hover .arrow { transform: translateX(4px); }
.empty-state {
  border: 2px dashed rgba(255,255,255,0.2); border-radius: var(--radius-md);
  padding: 48px; text-align: center; color: var(--text-sub); font-size: 14px;
}

/* Footer */
.site-footer {
  background: #07090C; border-top: 1px solid var(--border);
  position: relative; padding-top: 60px;
}
.site-footer::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(168,230,59,0.4), transparent);
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { color: var(--text-sub); font-size: 14px; max-width: 280px; line-height: 1.7; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 18px; color: var(--text-main); }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--text-sub); font-size: 14px; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-contact li { display: flex; align-items: center; gap: 10px; color: var(--text-sub); font-size: 14px; }
.footer-contact svg { width: 16px; height: 16px; color: var(--primary); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05); padding: 20px 0;
  text-align: center; color: var(--text-weak); font-size: 13px;
}
.footer-bottom .brand-name { color: var(--text-sub); }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; visibility: hidden; transition: all var(--transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-panel {
  width: 100%; max-width: 480px; background: var(--bg-overlay);
  border-radius: var(--radius-lg); padding: 40px;
  border-top: 3px solid var(--primary);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  position: relative;
  transform: scale(0.96) translateY(8px);
  transition: transform 240ms cubic-bezier(0.2,0.8,0.2,1);
}
.modal-overlay.active .modal-panel { transform: scale(1) translateY(0); }
.modal-close {
  position: absolute; top: 16px; right: 16px; width: 36px; height: 36px;
  background: transparent; border: 1px solid var(--border); border-radius: 8px;
  color: var(--text-sub); font-size: 18px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { color: var(--error); border-color: var(--error); }
.modal-head { margin-bottom: 28px; }
.modal-head h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.modal-head p { font-size: 14px; color: var(--text-sub); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; color: var(--text-main); margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group select {
  width: 100%; padding: 12px 14px; background: var(--bg-dark);
  border: 1px solid var(--border); border-radius: 8px; color: var(--text-main);
  font-size: 14px; transition: all var(--transition); outline: none;
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(168,230,59,0.12);
}
.form-group input::placeholder { color: var(--text-weak); }
.form-group select { appearance: auto; background-image: none; }
.form-group select option { background: var(--bg-overlay); color: var(--text-main); }
.form-check { display: flex; align-items: flex-start; gap: 8px; }
.form-check input[type="checkbox"] {
  width: 16px; height: 16px; margin-top: 3px; accent-color: var(--primary); flex-shrink: 0;
}
.form-check label { font-size: 13px; color: var(--text-sub); margin-bottom: 0; font-weight: 400; cursor: pointer; }
.form-check a { color: var(--accent-cyan); border-bottom: 1px solid transparent; }
.form-check a:hover { border-color: var(--accent-cyan); }
.form-error {
  background: rgba(255,93,93,0.1); border: 1px solid rgba(255,93,93,0.3);
  color: var(--error); font-size: 13px; padding: 10px 14px; border-radius: 8px;
  margin-bottom: 16px; display: none;
}
.form-success { display: none; flex-direction: column; align-items: center; text-align: center; padding: 32px 0; }
.form-success svg { width: 56px; height: 56px; color: var(--primary); margin-bottom: 16px; }
.form-success h4 { font-size: 20px; margin-bottom: 8px; }
.form-success p { font-size: 14px; color: var(--text-sub); }
.modal-form .btn { margin-top: 8px; position: relative; }
.btn.loading { pointer-events: none; opacity: 0.7; }
.btn.loading::after {
  content: ""; position: absolute; width: 18px; height: 18px;
  border: 2px solid rgba(0,0,0,0.2); border-top-color: #0B0E12;
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Section spacing variations */
.section-tight { padding: 56px 0; }

/* Responsive */
@media (max-width: 1023px) {
  .nav-wrap { gap: 24px; }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
  .main-nav.open {
    display: block; position: fixed; top: 64px; left: 0; right: 0;
    background: rgba(14,17,21,0.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border); padding: 20px 32px 32px;
    box-shadow: 0 16px 32px rgba(0,0,0,0.4);
  }
  .main-nav.open ul { flex-direction: column; gap: 4px; }
  .main-nav.open a {
    padding: 14px 8px; font-size: 20px; border-radius: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .main-nav.open a::after { display: none; }
  .main-nav.open a.active { background: rgba(168,230,59,0.06); }
  .main-nav.open .nav-cta-mobile { margin-top: 24px; display: block; }
  .main-nav.open .nav-cta-mobile .btn { width: 100%; padding: 16px; font-size: 16px; }

  .stats-wrap { grid-template-columns: 1fr; gap: 40px; }
  .stats-media { height: 240px; }
  .solution-card, .solution-card:nth-child(even) { grid-template-columns: 1fr; gap: 24px; }
  .solution-media, .solution-card:nth-child(even) .solution-media {
    width: 100%; height: 200px; order: initial;
  }
  .solution-card:nth-child(even) .solution-info { order: initial; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 767px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .section-header { margin-bottom: 32px; }
  .section-header h2 { font-size: 26px; }
  .hero { min-height: auto; padding: 100px 0 56px; }
  .hero h1 { font-size: 34px; line-height: 1.25; }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-metrics { gap: 32px; padding-left: 20px; }
  .hero-metrics strong { font-size: 28px; }
  .pain-grid { grid-template-columns: 1fr; }
  .pain-card { padding: 24px; flex-direction: column; }
  .pain-icon { width: 44px; height: 44px; font-size: 22px; }
  .solution-card { padding: 28px 20px; }
  .solution-num { font-size: 80px; top: -8px; right: 8px; }
  .solution-info h3 { font-size: 20px; }
  .solution-media { height: 160px; }
  .stats-grid { gap: 24px; }
  .stat-item strong { font-size: 40px; }
  .cta-box { flex-direction: column; text-align: center; padding: 32px 24px; }
  .cta-box .btn { width: 100%; }
  .privacy-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 72px 1fr; gap: 16px; padding: 16px; }
  .news-thumb { width: 72px; height: 72px; }
  .news-body h3 { font-size: 16px; }
  .news-body p { -webkit-line-clamp: 2; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-bottom { padding: 20px 16px; text-align: left; font-size: 12px; line-height: 1.6; }
  .modal-panel { padding: 32px 24px; }
  .faq-question { font-size: 15px; }
}

@media (min-width: 1024px) {
  .main-nav { display: flex !important; }
  .main-nav.open .nav-cta-mobile { display: none; }
}

/* roulang page: article */
:root {
            --primary: #A8E63B;
            --primary-dark: #76B526;
            --accent-gold: #F6C453;
            --accent-cyan: #4EC9E1;
            --bg-deep: #0B0E12;
            --bg-panel: #14181E;
            --bg-float: #1C222A;
            --text-main: #EEF2F6;
            --text-sub: #9DA8B4;
            --text-weak: #6C7884;
            --border: rgba(255, 255, 255, 0.08);
            --border-neon: rgba(168, 230, 59, 0.45);
            --danger: #FF5D5D;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-tag: 6px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 0 0 1px rgba(168, 230, 59, 0.4), 0 12px 40px rgba(168, 230, 59, 0.12);
            --glow: 0 0 12px rgba(168, 230, 59, 0.35);
            --transition: 200ms cubic-bezier(0.2, 0.8, 0.2, 1);
            --container-max: 1200px;
            --font-sans: -apple-system, "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", Bahnschrift, Oswald, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-deep);
            background-image: 
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            -webkit-font-smoothing: antialiased;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        ul, ol {
            list-style: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 64px;
            background: rgba(11, 14, 18, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .site-header::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(168, 230, 59, 0.5), transparent);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

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

        .brand-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .brand-icon svg {
            width: 26px;
            height: 26px;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand-text b {
            color: var(--primary);
            font-weight: 800;
            text-shadow: 0 0 12px rgba(168, 230, 59, 0.4);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav ul li a {
            font-size: 15px;
            color: var(--text-sub);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .main-nav ul li a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0);
            transition: all var(--transition);
            box-shadow: var(--glow);
        }

        .main-nav ul li a:hover {
            color: var(--text-main);
        }

        .main-nav ul li a:hover::after,
        .main-nav ul li a.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .main-nav ul li a.active {
            color: var(--text-main);
            text-shadow: 0 0 12px rgba(168, 230, 59, 0.3);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-cta-mobile {
            display: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #0B0E12;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: #bdf054;
            border-color: #bdf054;
            box-shadow: 0 0 20px rgba(168, 230, 59, 0.5);
            transform: translateY(-1px);
            color: #0B0E12;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(168, 230, 59, 0.3);
        }

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

        .btn-outline:hover {
            background: rgba(168, 230, 59, 0.1);
            box-shadow: 0 0 16px rgba(168, 230, 59, 0.25);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            width: 40px;
            height: 40px;
            justify-content: center;
            align-items: center;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        main {
            flex: 1;
        }

        .page-banner {
            position: relative;
            padding: 48px 0 32px;
            background-image: linear-gradient(to bottom, rgba(11, 14, 18, 0.9), rgba(11, 14, 18, 0.98)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
        }

        .page-banner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(168, 230, 59, 0.3), transparent);
        }

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

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--text-weak);
            transition: color var(--transition);
        }

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

        .breadcrumb span {
            color: var(--text-weak);
        }

        .breadcrumb .current {
            color: var(--text-sub);
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-main {
            padding: 48px 0 80px;
        }

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

        .article-header {
            margin-bottom: 32px;
        }

        .article-title {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 14px;
            color: var(--text-weak);
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

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

        .article-meta .meta-item i {
            color: var(--accent-gold);
        }

        .article-meta a {
            color: var(--accent-cyan);
        }

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

        .article-excerpt {
            margin: 28px 0;
            padding: 20px 24px;
            background: var(--bg-panel);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .article-content {
            max-width: 760px;
            margin: 0 auto;
        }

        .article-content .content-body {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-sub);
        }

        .article-content .content-body h2 {
            font-size: 26px;
            color: var(--text-main);
            margin: 40px 0 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            line-height: 1.4;
        }

        .article-content .content-body h3 {
            font-size: 20px;
            color: var(--text-main);
            margin: 32px 0 12px;
            line-height: 1.4;
        }

        .article-content .content-body p {
            margin-bottom: 22px;
            line-height: 1.85;
        }

        .article-content .content-body a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-decoration-color: rgba(78, 201, 225, 0.4);
            text-underline-offset: 4px;
        }

        .article-content .content-body a:hover {
            color: var(--primary);
            text-decoration-color: var(--primary);
        }

        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

        .article-content .content-body ul {
            list-style: disc;
        }

        .article-content .content-body ol {
            list-style: decimal;
        }

        .article-content .content-body li {
            margin-bottom: 8px;
            line-height: 1.75;
        }

        .article-content .content-body blockquote {
            background: var(--bg-panel);
            border-left: 3px solid var(--accent-gold);
            padding: 18px 22px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-sub);
            font-size: 15px;
        }

        .article-content .content-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-content .content-body table {
            width: 100%;
            margin: 24px 0;
            border-collapse: collapse;
            font-size: 14px;
            background: var(--bg-panel);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-content .content-body table th {
            background: var(--bg-float);
            color: var(--text-main);
            font-weight: 600;
            text-align: left;
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
        }

        .article-content .content-body table td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-sub);
        }

        .article-content .content-body table tr:last-child td {
            border-bottom: none;
        }

        .article-content .content-body table tr:hover td {
            background: rgba(168, 230, 59, 0.03);
        }

        .article-footer-panel {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            max-width: 760px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .article-tags a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            color: var(--accent-cyan);
            background: rgba(78, 201, 225, 0.08);
            border: 1px solid rgba(78, 201, 225, 0.3);
            padding: 5px 12px;
            border-radius: var(--radius-tag);
            transition: all var(--transition);
        }

        .article-tags a:hover {
            background: rgba(78, 201, 225, 0.15);
            border-color: rgba(78, 201, 225, 0.6);
            color: var(--accent-cyan);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
        }

        .article-share-label {
            font-size: 14px;
            color: var(--text-weak);
        }

        .share-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-sub);
            background: var(--bg-panel);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .share-icon:hover {
            color: var(--primary);
            border-color: var(--border-neon);
            box-shadow: var(--glow);
            transform: translateY(-2px);
        }

        .related-section {
            margin-top: 48px;
            padding-top: 40px;
            border-top: 1px solid var(--border);
            max-width: 760px;
            margin-left: auto;
            margin-right: auto;
        }

        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .related-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
        }

        .related-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition);
        }

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

        .related-card .card-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--primary);
            background: rgba(168, 230, 59, 0.08);
            border: 1px solid rgba(168, 230, 59, 0.3);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
        }

        .related-card h3 {
            font-size: 16px;
            line-height: 1.5;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .related-card .view-link {
            color: var(--primary);
            font-size: 13px;
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .article-not-found .not-found-icon {
            font-size: 56px;
            color: var(--text-weak);
            margin-bottom: 20px;
        }

        .article-not-found h2 {
            font-size: 28px;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .article-back-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 24px;
            color: var(--text-sub);
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 22px;
            font-size: 14px;
            transition: all var(--transition);
        }

        .article-back-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(168, 230, 59, 0.15);
            background: rgba(168, 230, 59, 0.05);
        }

        .site-footer {
            background: #07090C;
            border-top: 1px solid rgba(168, 230, 59, 0.2);
            padding: 64px 0 32px;
            position: relative;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(168, 230, 59, 0.4), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-weak);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            color: var(--text-main);
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-weak);
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .footer-contact li svg {
            width: 16px;
            height: 16px;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom a {
            color: var(--text-weak);
            font-size: 13px;
            transition: color var(--transition);
        }

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

        .modal {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 9999;
        }

        .modal.show {
            display: block;
        }

        .modal-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            animation: fadeIn var(--transition) ease-out;
        }

        .modal-panel {
            position: relative;
            max-width: 480px;
            margin: 10vh auto 0;
            background: var(--bg-float);
            border-radius: var(--radius-lg);
            box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
            padding: 36px 32px 32px;
            border-top: 3px solid var(--primary);
            animation: slideUp 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        @keyframes fadeIn {
            from { opacity: 0; }
        }

        @keyframes slideUp {
            from { opacity: 0; transform: scale(0.96) translateY(10px); }
        }

        .modal-close {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--text-weak);
            font-size: 18px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .modal-close:hover {
            color: var(--danger);
            border-color: rgba(255, 93, 93, 0.3);
            background: rgba(255, 93, 93, 0.08);
        }

        .modal-panel h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .modal-panel .modal-desc {
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 8px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            height: 44px;
            padding: 0 14px;
            background: var(--bg-deep);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-main);
            transition: all var(--transition);
            font-family: inherit;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(168, 230, 59, 0.15), 0 0 12px rgba(168, 230, 59, 0.1);
        }

        .form-group input::placeholder {
            color: var(--text-weak);
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%236C7884' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 16px;
            padding-right: 40px;
        }

        .checkbox-wrap {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin: 20px 0;
            font-size: 13px;
            color: var(--text-weak);
        }

        .checkbox-wrap input[type="checkbox"] {
            width: 16px;
            height: 16px;
            margin-top: 3px;
            accent-color: var(--primary);
        }

        .checkbox-wrap a {
            color: var(--accent-cyan);
        }

        .btn-block {
            width: 100%;
            height: 48px;
        }

        .btn .spinner {
            display: none;
            width: 16px;
            height: 16px;
            border: 2px solid #0B0E12;
            border-top-color: transparent;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        .btn.loading .spinner {
            display: inline-block;
        }

        .btn.loading .btn-text {
            opacity: 0.8;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .form-success {
            display: none;
            text-align: center;
            padding: 30px 0;
        }

        .form-success.show {
            display: block;
        }

        .success-icon {
            font-size: 48px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .form-error {
            display: none;
            background: rgba(255, 93, 93, 0.1);
            border: 1px solid rgba(255, 93, 93, 0.4);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--danger);
            margin-bottom: 16px;
        }

        .form-error.show {
            display: block;
        }

        .toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 10000;
            background: var(--bg-float);
            border: 1px solid var(--border-neon);
            color: var(--text-main);
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
            transform: translateY(80px);
            opacity: 0;
            transition: all 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        .toast.show {
            transform: translateY(0);
            opacity: 1;
        }

        .empty-state {
            margin: 32px 0;
            padding: 60px 20px;
            border: 2px dashed rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-md);
            text-align: center;
            color: var(--text-weak);
            font-size: 14px;
        }

        .empty-state i {
            font-size: 32px;
            margin-bottom: 12px;
            color: var(--text-weak);
            display: block;
        }

        .btn:focus-visible,
        .modal-close:focus-visible,
        .hamburger:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 20px;
            }

            .site-header {
                height: 56px;
            }

            .nav-wrap {
                height: 56px;
            }

            .nav-cta {
                display: none;
            }

            .main-nav {
                display: none;
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                bottom: 0;
                background: #0E1115;
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 32px 24px;
                z-index: 100;
                overflow-y: auto;
                gap: 0;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav ul {
                flex-direction: column;
                gap: 0;
                width: 100%;
                margin-bottom: 32px;
            }

            .main-nav ul li {
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .main-nav ul li a {
                font-size: 20px;
                padding: 18px 0;
                display: block;
                color: var(--text-sub);
            }

            .main-nav ul li a.active {
                color: var(--primary);
                text-shadow: 0 0 16px rgba(168, 230, 59, 0.3);
            }

            .main-nav ul li a::after {
                display: none;
            }

            .nav-cta-mobile {
                display: block;
                width: 100%;
                margin-top: auto;
            }

            .nav-cta-mobile .btn {
                width: 100%;
                height: 48px;
                font-size: 16px;
            }

            .hamburger {
                display: flex;
            }

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

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-excerpt {
                padding: 16px 18px;
                font-size: 14px;
            }

            .related-list {
                grid-template-columns: 1fr;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .modal-panel {
                margin: 6vh 20px 0;
                padding: 28px 20px 24px;
            }

            .page-banner {
                padding: 32px 0 24px;
            }

            .breadcrumb .current {
                max-width: 160px;
            }

            .article-content .content-body h2 {
                font-size: 20px;
            }

            .article-content .content-body {
                font-size: 15px;
            }

            .toast {
                right: 20px;
                left: 20px;
                bottom: 20px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 16px;
            }

            .brand-icon {
                width: 24px;
                height: 24px;
            }

            .brand-icon svg {
                width: 22px;
                height: 22px;
            }

            .article-title {
                font-size: 22px;
            }

            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .related-card {
                padding: 16px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #A8E63B;
  --primary-dark: #76B526;
  --accent-gold: #F6C453;
  --accent-cyan: #4EC9E1;
  --bg-base: #0B0E12;
  --bg-panel: #14181E;
  --bg-surface: #1C222A;
  --bg-deep: #07090C;
  --text-main: #EEF2F6;
  --text-sub: #9DA8B4;
  --text-weak: #6C7884;
  --border: rgba(255,255,255,0.08);
  --border-neon: rgba(168,230,59,0.45);
  --shadow-card: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-neon: 0 0 0 1px rgba(168,230,59,0.4), 0 12px 40px rgba(168,230,59,0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: 200ms cubic-bezier(0.2,0.8,0.2,1);
  --font-cn: -apple-system, "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", Bahnschrift, Oswald, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg-base);
  color: var(--text-main);
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; cursor: pointer; background: none; }
input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section { padding: 80px 0; position: relative; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(11, 14, 18, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(168,230,59,0.18);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text-main); }
.brand-icon { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; flex-shrink: 0; }
.brand-icon svg { width: 28px; height: 28px; }
.brand-text { font-size: 18px; font-weight: 700; letter-spacing: 0.4px; white-space: nowrap; }
.brand-text b { color: var(--primary); font-weight: 700; text-shadow: 0 0 12px rgba(168,230,59,0.35); }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav ul { display: flex; align-items: center; gap: 28px; }
.main-nav ul li a {
  position: relative;
  color: var(--text-sub);
  font-size: 15px;
  padding: 18px 0;
  white-space: nowrap;
}
.main-nav ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), rgba(168,230,59,0.2));
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0.6);
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 0 12px rgba(168,230,59,0.45);
}
.main-nav ul li a:hover { color: var(--text-main); }
.main-nav ul li a:hover::after { opacity: 1; transform: scaleX(1); }
.main-nav ul li a.active { color: var(--text-main); text-shadow: 0 0 16px rgba(168,230,59,0.3); }
.main-nav ul li a.active::after { opacity: 1; transform: scaleX(1); }
.nav-cta { display: flex; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: all var(--transition);
  white-space: nowrap;
  outline: none;
}
.btn:focus-visible { box-shadow: 0 0 0 3px rgba(168,230,59,0.4); }
.btn-primary {
  background: var(--primary);
  color: #0B0E12;
  box-shadow: 0 4px 18px rgba(168,230,59,0.25);
}
.btn-primary:hover {
  background: #b8f04d;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(168,230,59,0.4);
}
.btn-primary svg, .btn svg { width: 16px; height: 16px; transition: transform var(--transition); }
.btn-primary:hover svg { transform: translateX(3px); }
.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 16px rgba(168,230,59,0.15);
  transform: translateY(-2px);
}
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: 8px;
}
.hamburger span { display: block; height: 2px; background: var(--text-main); border-radius: 2px; transition: all var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-cta-mobile { display: none; }

/* Hero */
.hero-cat {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 120px 0 80px;
}
.hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,14,18,0.72) 0%, rgba(11,14,18,0.55) 50%, var(--bg-base) 100%);
}
.hero-cat .container { position: relative; z-index: 2; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(168,230,59,0.1);
  border: 1px solid rgba(168,230,59,0.3);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 8px rgba(168,230,59,0.8); }
.hero-cat h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-cat h1 .highlight {
  color: var(--primary);
  text-shadow: 0 0 18px rgba(168,230,59,0.4);
  position: relative;
}
.hero-cat .sub-lead {
  font-size: 18px;
  color: var(--text-sub);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-cat .hero-metrics {
  display: flex;
  gap: 32px;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  max-width: 640px;
}
.hero-cat .hero-metrics .metric { display: flex; flex-direction: column; gap: 4px; }
.hero-cat .hero-metrics .metric-num { font-family: var(--font-num); font-size: 28px; font-weight: 700; color: var(--accent-gold); }
.hero-cat .hero-metrics .metric-label { font-size: 12px; color: var(--text-weak); }

/* Intro */
.cat-intro { background: var(--bg-panel); padding: 72px 0; border-bottom: 1px solid var(--border); }
.intro-block { max-width: 780px; }
.section-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  background: rgba(168,230,59,0.08);
  border: 1px solid rgba(168,230,59,0.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 16px;
}
.intro-block h2 { font-size: 32px; line-height: 1.3; margin-bottom: 16px; font-weight: 700; }
.intro-block p { color: var(--text-sub); font-size: 16px; line-height: 1.8; }

/* Ways */
.login-ways { padding: 80px 0; background: transparent; }
.section-head { margin-bottom: 48px; }
.section-head h2 { font-size: 34px; font-weight: 700; margin-bottom: 8px; line-height: 1.3; }
.section-head p { color: var(--text-sub); max-width: 640px; }
.way-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px;
  margin-bottom: 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.way-card:hover {
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon);
  transform: translateY(-4px);
}
.way-card.flip .way-content { order: 2; }
.way-card.flip .way-media { order: 1; }
.way-num {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 700;
  color: rgba(168,230,59,0.35);
  line-height: 1;
  margin-bottom: 12px;
}
.way-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.way-card h3 span { color: var(--primary); }
.way-card .desc { color: var(--text-sub); margin-bottom: 20px; }
.way-points { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.way-points li { display: flex; align-items: flex-start; gap: 10px; color: var(--text-sub); font-size: 15px; }
.way-points li svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--primary); }
.way-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  background: var(--bg-panel);
}
.way-media img { width: 100%; height: 100%; object-fit: cover; }
.way-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11,14,18,0.6) 100%);
}
.way-card .btn { align-self: flex-start; }

/* Steps */
.flow-steps { background: var(--bg-panel); padding: 80px 0; position: relative; }
.flow-steps::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent, rgba(168,230,59,0.3), transparent);
  opacity: 0.5;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
}
.step-item::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-num);
  font-size: 42px;
  font-weight: 700;
  color: rgba(168,230,59,0.2);
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}
.step-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), transparent);
  opacity: 0.5;
  transition: opacity var(--transition);
}
.step-item:hover { border-color: var(--border-neon); transform: translateY(-4px); box-shadow: var(--shadow-neon); }
.step-item:hover::after { opacity: 1; }
.step-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-item p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* Scenarios */
.scenario-section { padding: 80px 0; }
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.scenario-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  gap: 20px;
  transition: all var(--transition);
}
.scenario-item:hover { border-color: var(--border-neon); box-shadow: var(--shadow-neon); transform: translateY(-3px); }
.scenario-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(168,230,59,0.1);
  border: 1px solid rgba(168,230,59,0.25);
}
.scenario-icon svg { width: 24px; height: 24px; color: var(--primary); }
.scenario-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.scenario-item p { color: var(--text-sub); font-size: 14px; line-height: 1.7; }

/* Data Band */
.data-band {
  background: var(--bg-deep);
  padding: 64px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.data-band::before {
  content: "";
  position: absolute;
  right: -120px;
  top: 50%;
  transform: translateY(-50%);
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(168,230,59,0.14), transparent 65%);
  z-index: 0;
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}
.data-item { text-align: center; padding: 24px 16px; }
.data-num {
  font-family: var(--font-num);
  font-size: 52px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  display: block;
  margin-bottom: 6px;
  text-shadow: 0 0 22px rgba(168,230,59,0.3);
}
.data-item .data-label { font-size: 14px; color: var(--text-sub); }
.data-item::after {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  background: var(--primary);
  margin: 12px auto 0;
}
.data-note { margin-top: 24px; font-size: 13px; color: var(--text-weak); text-align: center; }

/* FAQ */
.faq-section { padding: 80px 0; background: var(--bg-panel); }
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item.active { border-color: var(--border-neon); box-shadow: 0 0 18px rgba(168,230,59,0.12); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-q svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--transition); color: var(--text-weak); }
.faq-item.active .faq-q svg { transform: rotate(180deg); color: var(--primary); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 300ms cubic-bezier(0.2,0.8,0.2,1); }
.faq-a-inner { padding: 0 24px 22px; color: var(--text-sub); font-size: 15px; line-height: 1.75; }

/* CTA Band */
.cta-band { padding: 72px 0; background: var(--bg-base); }
.cta-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 32px rgba(168,230,59,0.08);
}
.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent);
}
.cta-box h2 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.cta-box p { color: var(--text-sub); font-size: 16px; }
.cta-box .btn { flex-shrink: 0; padding: 14px 32px; font-size: 16px; }

/* Footer */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(168,230,59,0.25);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { color: var(--text-sub); font-size: 14px; line-height: 1.7; max-width: 300px; }
.footer-col h4 {
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { color: var(--text-sub); font-size: 14px; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact li { display: flex; align-items: center; gap: 8px; color: var(--text-sub); font-size: 14px; }
.footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--accent-gold); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { color: var(--text-weak); font-size: 13px; }
.footer-bottom p b { color: var(--text-sub); font-weight: 500; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-weak); font-size: 13px; }
.footer-links a:hover { color: var(--primary); }

/* Modal */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 240ms cubic-bezier(0.2,0.8,0.2,1), visibility 240ms;
}
.modal-mask.open { opacity: 1; visibility: visible; }
.modal-panel {
  width: 100%;
  max-width: 480px;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--primary);
  padding: 32px;
  position: relative;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  transform: scale(0.96);
  transition: transform 240ms cubic-bezier(0.2,0.8,0.2,1);
}
.modal-mask.open .modal-panel { transform: scale(1); }
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--text-weak);
  transition: all var(--transition);
}
.modal-close:hover { background: rgba(255,255,255,0.06); color: var(--text-main); }
.modal-close svg { width: 18px; height: 18px; }
.modal-panel h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.modal-panel .modal-sub { font-size: 14px; color: var(--text-sub); margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-sub); margin-bottom: 6px; }
.form-group input, .form-group select {
  width: 100%;
  height: 44px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--text-main);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus, .form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168,230,59,0.15), 0 0 12px rgba(168,230,59,0.25);
}
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%239DA8B4' stroke-width='2'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.check-group { display: flex; align-items: flex-start; gap: 8px; margin: 18px 0; }
.check-group input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--primary); }
.check-group label { font-size: 13px; color: var(--text-weak); line-height: 1.5; }
.check-group a { color: var(--primary); }
.form-submit { width: 100%; height: 48px; font-size: 16px; }
.form-error {
  background: rgba(255,93,93,0.1);
  border: 1px solid rgba(255,93,93,0.4);
  color: #FF5D5D;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.form-error.show { display: block; }
.modal-success { text-align: center; padding: 32px 0 16px; display: none; }
.modal-success .success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(168,230,59,0.15);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 0 24px rgba(168,230,59,0.25);
}
.modal-success svg { width: 28px; height: 28px; color: var(--primary); }
.modal-success h4 { font-size: 18px; margin-bottom: 8px; }
.modal-success p { color: var(--text-sub); font-size: 14px; }
.modal-success .btn { margin-top: 20px; }

/* Responsive */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .main-nav ul { gap: 20px; }
  .way-card { padding: 36px; gap: 32px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767px) {
  body { font-size: 15px; }
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .site-header { height: 60px; }
  .nav-wrap { height: 60px; }
  .hamburger { display: flex; }
  .main-nav {
    position: fixed;
    top: 60px;
    right: 0;
    width: 100%;
    max-width: 320px;
    height: calc(100vh - 60px);
    background: rgba(14,17,21,0.96);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform 240ms cubic-bezier(0.2,0.8,0.2,1);
    border-left: 1px solid var(--border);
    border-top: 1px solid rgba(168,230,59,0.15);
    box-shadow: -16px 0 40px rgba(0,0,0,0.4);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 6px; width: 100%; }
  .main-nav ul li { width: 100%; }
  .main-nav ul li a { display: block; font-size: 20px; padding: 14px 0; border-bottom: 1px solid var(--border); width: 100%; }
  .main-nav ul li a::after { display: none; }
  .main-nav ul li a.active { color: var(--primary); }
  .nav-cta { display: none; }
  .nav-cta-mobile { display: block; margin-top: 28px; width: 100%; }
  .nav-cta-mobile .btn { width: 100%; height: 48px; font-size: 16px; }
  .hero-cat { min-height: auto; padding: 120px 0 60px; }
  .hero-cat h1 { font-size: 32px; line-height: 1.25; }
  .hero-cat .sub-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-cat .hero-metrics { flex-wrap: wrap; gap: 20px; margin-top: 36px; }
  .cat-intro { padding: 48px 0; }
  .intro-block h2 { font-size: 26px; }
  .section-head h2 { font-size: 26px; }
  .way-card, .way-card.flip {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 24px;
  }
  .way-card.flip .way-content { order: 1; }
  .way-card.flip .way-media { order: 2; }
  .way-num { font-size: 44px; }
  .way-card h3 { font-size: 20px; }
  .way-card .btn { width: 100%; justify-content: center; }
  .steps-grid { grid-template-columns: 1fr; }
  .flow-steps::before { display: none; }
  .scenario-grid { grid-template-columns: 1fr; }
  .scenario-item { flex-direction: column; gap: 14px; padding: 24px; }
  .data-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .data-num { font-size: 38px; }
  .data-item { padding: 16px 8px; }
  .cta-box { flex-direction: column; padding: 36px 24px; text-align: center; }
  .cta-box .btn { width: 100%; }
  .faq-section { padding: 56px 0; }
  .faq-q { padding: 18px 18px; font-size: 15px; }
  .faq-a-inner { padding: 0 18px 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .modal-panel { padding: 24px; }
}
@media (max-width: 520px) {
  .brand-text { font-size: 16px; }
  .hero-cat h1 { font-size: 28px; }
  .data-grid { grid-template-columns: 1fr; }
  .data-item { border-bottom: 1px solid var(--border); }
}

/* roulang page: category2 */
:root {
  --primary: #A8E63B;
  --primary-dark: #76B526;
  --accent-gold: #F6C453;
  --accent-cyan: #4EC9E1;
  --bg-deep: #0B0E12;
  --bg-panel: #14181E;
  --bg-elevated: #1C222A;
  --bg-footer: #07090C;
  --text-main: #EEF2F6;
  --text-sub: #9DA8B4;
  --text-weak: #6C7884;
  --border: rgba(255,255,255,0.08);
  --border-neon: rgba(168,230,59,0.45);
  --error: #FF5D5D;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 6px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-neon: 0 0 0 1px rgba(168,230,59,0.4), 0 12px 40px rgba(168,230,59,0.12);
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", Bahnschrift, Oswald, sans-serif;
  --transition: 200ms cubic-bezier(0.2,0.8,0.2,1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg-deep); color: var(--text-main); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px); background-size: 48px 48px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* 导航 */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 64px; background: rgba(11,14,18,0.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: box-shadow var(--transition); }
.site-header::after { content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(168,230,59,0.5), transparent); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.brand-icon { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid rgba(168,230,59,0.3); border-radius: 8px; background: rgba(168,230,59,0.08); flex-shrink: 0; }
.brand-icon svg { width: 20px; height: 20px; }
.brand-text { font-size: 18px; font-weight: 700; letter-spacing: 0.02em; color: var(--text-main); }
.brand-text b { color: var(--primary); font-weight: 800; text-shadow: 0 0 12px rgba(168,230,59,0.35); }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav ul { display: flex; align-items: center; gap: 28px; list-style: none; }
.main-nav a { font-size: 15px; color: var(--text-sub); padding: 18px 0; position: relative; transition: color var(--transition); }
.main-nav a:hover { color: var(--text-main); }
.main-nav a.active { color: var(--primary); text-shadow: 0 0 12px rgba(168,230,59,0.4); }
.main-nav a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--primary); box-shadow: 0 0 12px rgba(168,230,59,0.45); border-radius: 2px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600; padding: 10px 24px; border-radius: var(--radius-btn); transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--primary); color: #0B0E12; box-shadow: 0 0 0 1px rgba(168,230,59,0.6), 0 4px 16px rgba(168,230,59,0.2); }
.btn-primary:hover { background: #bcf04f; transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(168,230,59,0.8), 0 8px 24px rgba(168,230,59,0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { border: 1px solid rgba(168,230,59,0.5); color: var(--primary); background: transparent; }
.btn-outline:hover { background: rgba(168,230,59,0.1); border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 0 16px rgba(168,230,59,0.15); }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.nav-cta-mobile, .hamburger { display: none; }
.hamburger { flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: var(--text-main); border-radius: 2px; transition: all var(--transition); }

/* 页脚 */
.site-footer { background: var(--bg-footer); border-top: 1px solid rgba(168,230,59,0.3); position: relative; margin-top: 80px; }
.site-footer::before { content: ''; position: absolute; top: -1px; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(168,230,59,0.5), transparent); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding: 64px 0 40px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-weak); max-width: 280px; line-height: 1.7; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: var(--text-main); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--text-sub); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-sub); }
.footer-contact li svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--accent-cyan); }
.footer-bottom { border-top: 1px solid var(--border); padding: 24px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 13px; color: var(--text-weak); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: var(--text-weak); transition: color var(--transition); }
.footer-links a:hover { color: var(--text-main); }

/* Hero */
.category-hero { position: relative; padding: 160px 0 96px; overflow: hidden; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; }
.category-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,14,18,0.92) 0%, rgba(11,14,18,0.78) 60%, var(--bg-deep) 100%); }
.category-hero::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 48px 48px; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; max-width: 800px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 100px; background: rgba(168,230,59,0.1); border: 1px solid rgba(168,230,59,0.3); font-size: 13px; color: var(--primary); margin-bottom: 24px; }
.hero-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 8px rgba(168,230,59,0.6); }
.category-hero h1 { font-size: 40px; line-height: 1.25; font-weight: 800; letter-spacing: 0.01em; margin-bottom: 20px; }
.category-hero h1 .highlight { color: var(--primary); text-shadow: 0 0 24px rgba(168,230,59,0.35); }
.hero-sub { font-size: 17px; color: var(--text-sub); line-height: 1.8; max-width: 640px; margin-bottom: 36px; }
.hero-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin-top: 28px; }
.hero-meta-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-sub); }
.hero-meta-item svg { width: 18px; height: 18px; color: var(--primary); }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* section 通用 */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-panel); }
.section-head { margin-bottom: 48px; }
.section-head .tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 12px; }
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.3; letter-spacing: 0.01em; }
.section-head p { font-size: 16px; color: var(--text-sub); margin-top: 12px; max-width: 640px; }

/* 方案卡片（交错） */
.solution-card { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 40px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-card); margin-bottom: 24px; box-shadow: var(--shadow-card); transition: all var(--transition); position: relative; overflow: hidden; }
.solution-card:hover { border-color: rgba(168,230,59,0.4); box-shadow: var(--shadow-neon); transform: translateY(-4px); }
.solution-card.reversed .solution-content { order: 2; }
.solution-card.reversed .solution-visual { order: 1; }
.solution-number { font-family: var(--font-num); font-size: 56px; font-weight: 700; color: rgba(168,230,59,0.3); line-height: 1; display: block; margin-bottom: 16px; text-shadow: 0 0 24px rgba(168,230,59,0.15); }
.solution-content h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.solution-content p { font-size: 15px; color: var(--text-sub); margin-bottom: 20px; line-height: 1.8; }
.solution-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.solution-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-main); }
.solution-list li svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; margin-top: 3px; }
.solution-visual img { width: 100%; height: 240px; object-fit: cover; border-radius: var(--radius-card); border: 1px solid var(--border); }

/* 场景 */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.scene-card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 32px; transition: all var(--transition); }
.scene-card:hover { border-color: rgba(168,230,59,0.3); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.scene-icon { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 10px; background: rgba(78,201,225,0.1); border: 1px solid rgba(78,201,225,0.25); margin-bottom: 20px; }
.scene-icon svg { width: 24px; height: 24px; color: var(--accent-cyan); }
.scene-card:nth-child(2) .scene-icon { background: rgba(246,196,83,0.1); border-color: rgba(246,196,83,0.25); }
.scene-card:nth-child(2) .scene-icon svg { color: var(--accent-gold); }
.scene-card:nth-child(3) .scene-icon { background: rgba(168,230,59,0.1); border-color: rgba(168,230,59,0.25); }
.scene-card:nth-child(3) .scene-icon svg { color: var(--primary); }
.scene-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.scene-card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }

/* 流程 */
.flow-section { background: var(--bg-panel); }
.flow-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.flow-wrap::before { content: ''; position: absolute; top: 36px; left: 60px; right: 60px; height: 1px; background: linear-gradient(90deg, var(--primary), rgba(168,230,59,0.2)); opacity: 0.3; }
.flow-item { text-align: center; position: relative; padding: 0 12px; }
.flow-num { display: flex; align-items: center; justify-content: center; width: 72px; height: 72px; margin: 0 auto 20px; font-family: var(--font-num); font-size: 28px; font-weight: 700; color: var(--primary); background: var(--bg-deep); border: 1px solid rgba(168,230,59,0.4); border-radius: 50%; box-shadow: 0 0 16px rgba(168,230,59,0.15); z-index: 1; position: relative; }
.flow-item h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.flow-item p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* 数据 */
.data-band { background: var(--bg-deep); position: relative; overflow: hidden; }
.data-band::before { content: ''; position: absolute; top: -140px; right: -140px; width: 360px; height: 360px; background: rgba(246,196,83,0.07); border-radius: 50%; filter: blur(60px); }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; position: relative; z-index: 1; }
.data-item { text-align: center; }
.data-num { font-family: var(--font-num); font-size: 56px; font-weight: 700; color: var(--accent-gold); line-height: 1.2; display: block; }
.data-item:nth-child(odd) .data-num { color: var(--primary); }
.data-bar { width: 32px; height: 2px; background: var(--primary); margin: 12px auto; }
.data-label { font-size: 14px; color: var(--text-sub); }
.data-note { margin-top: 32px; font-size: 13px; color: var(--text-weak); text-align: center; position: relative; z-index: 1; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-card); margin-bottom: 16px; transition: all var(--transition); }
.faq-item.active { border-color: var(--border-neon); box-shadow: 0 0 16px rgba(168,230,59,0.1); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text-main); cursor: pointer; }
.faq-question svg { width: 18px; height: 18px; color: var(--primary); transition: transform var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question svg { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 240ms cubic-bezier(0.2,0.8,0.2,1); }
.faq-answer-inner { padding: 0 24px 24px; font-size: 14px; color: var(--text-sub); line-height: 1.8; }

/* CTA */
.cta-band { background: var(--bg-panel); border: 1px solid var(--border-neon); border-radius: var(--radius-card); box-shadow: 0 0 24px rgba(168,230,59,0.08); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 48px; }
.cta-inner h2 { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.cta-inner p { font-size: 15px; color: var(--text-sub); }
.cta-inner .btn { flex-shrink: 0; }

/* 弹层 */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); display: none; align-items: center; justify-content: center; z-index: 2000; opacity: 0; transition: opacity 240ms; }
.modal-overlay.open { display: flex; opacity: 1; }
.modal-panel { width: calc(100% - 40px); max-width: 480px; background: var(--bg-elevated); border-radius: 16px; position: relative; overflow: hidden; transform: scale(0.96); transition: transform 240ms cubic-bezier(0.2,0.8,0.2,1); box-shadow: 0 24px 64px rgba(0,0,0,0.5); }
.modal-overlay.open .modal-panel { transform: scale(1); }
.modal-panel::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent-cyan)); }
.modal-head { padding: 32px 32px 0; }
.modal-head h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.modal-head p { font-size: 14px; color: var(--text-sub); }
.modal-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--text-sub); transition: all var(--transition); }
.modal-close:hover { color: var(--text-main); background: var(--bg-panel); }
.modal-close svg { width: 18px; height: 18px; }
.modal-body { padding: 24px 32px 32px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text-sub); margin-bottom: 6px; }
.form-group input, .form-group select { width: 100%; padding: 12px 14px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: 8px; color: var(--text-main); font-size: 14px; font-family: inherit; transition: border-color var(--transition), box-shadow var(--transition); outline: none; }
.form-group input:focus, .form-group select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(168,230,59,0.15), 0 0 12px rgba(168,230,59,0.1); }
.form-check { display: flex; align-items: flex-start; gap: 10px; margin: 18px 0; }
.form-check input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--primary); }
.form-check label { font-size: 13px; color: var(--text-weak); line-height: 1.6; cursor: pointer; }
.form-check a { color: var(--accent-cyan); }
.form-check a:hover { text-decoration: underline; }
.btn-block { width: 100%; height: 48px; font-size: 16px; }
.btn-loading { position: relative; color: transparent !important; }
.btn-loading::after { content: ''; position: absolute; width: 20px; height: 20px; border: 2px solid rgba(11,14,18,0.3); border-top-color: #0B0E12; border-radius: 50%; animation: spin 600ms linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.modal-success { text-align: center; padding: 40px 0 24px; display: none; }
.modal-success .success-icon { width: 64px; height: 64px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(168,230,59,0.12); border: 1px solid rgba(168,230,59,0.4); }
.modal-success .success-icon svg { width: 32px; height: 32px; color: var(--primary); }
.modal-success h4 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.modal-success p { font-size: 14px; color: var(--text-sub); }
.modal-error { display: none; background: rgba(255,93,93,0.1); border: 1px solid rgba(255,93,93,0.3); color: var(--error); font-size: 13px; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }

/* 响应式 */
@media (max-width: 1023px) {
  .container { padding: 0 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .category-hero { padding: 140px 0 72px; }
  .category-hero h1 { font-size: 34px; }
  .solution-card { grid-template-columns: 1fr; gap: 32px; padding: 32px; }
  .solution-card.reversed .solution-content { order: 1; }
  .solution-card.reversed .solution-visual { order: 2; }
  .flow-wrap { grid-template-columns: repeat(2, 1fr); gap: 32px 24px; }
  .flow-wrap::before { display: none; }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 767px) {
  .container { padding: 0 20px; }
  .site-header { height: 56px; }
  .nav-wrap { height: 56px; }
  .brand-text { font-size: 16px; }
  .main-nav { display: none; position: fixed; top: 56px; left: 0; right: 0; background: #0E1115; flex-direction: column; padding: 24px 20px 32px; border-bottom: 1px solid var(--border); align-items: stretch; gap: 0; }
  .main-nav.open { display: flex; }
  .main-nav ul { flex-direction: column; gap: 4px; width: 100%; }
  .main-nav a { display: block; padding: 14px 8px; font-size: 20px; border-bottom: 1px solid var(--border); }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { background: rgba(168,230,59,0.06); border-radius: 8px; padding-left: 14px; }
  .nav-cta { display: none; }
  .nav-cta-mobile { display: block; margin-top: 24px; }
  .nav-cta-mobile .btn { width: 100%; }
  .hamburger { display: flex; }
  .category-hero { padding: 120px 0 56px; }
  .category-hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-meta { flex-direction: column; gap: 12px; align-items: flex-start; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .solution-card { padding: 24px; }
  .solution-visual img { height: 180px; }
  .solution-number { font-size: 44px; }
  .scene-grid { grid-template-columns: 1fr; }
  .flow-wrap { grid-template-columns: 1fr; }
  .data-grid { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
  .data-num { font-size: 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 32px; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .cta-inner { flex-direction: column; padding: 32px 24px; text-align: center; }
  .cta-inner .btn { width: 100%; justify-content: center; }
}

/* roulang page: category3 */
:root {
  --primary: #A8E63B;
  --primary-dark: #76B526;
  --gold: #F6C453;
  --cyan: #4EC9E1;
  --bg-deep: #0B0E12;
  --bg-panel: #14181E;
  --bg-float: #1C222A;
  --text-main: #EEF2F6;
  --text-sub: #9DA8B4;
  --text-weak: #6C7884;
  --border: rgba(255, 255, 255, 0.08);
  --border-neon: rgba(168, 230, 59, 0.45);
  --danger: #FF5D5D;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 6px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 0 0 1px rgba(168, 230, 59, 0.4), 0 12px 40px rgba(168, 230, 59, 0.12);
  --transition: 200ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --font-main: -apple-system, "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Oswald", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
}
a { color: var(--text-main); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }
h2 { font-size: 32px; margin-bottom: 16px; }
h2 .hl { color: var(--primary); }
.section { padding: 80px 0; }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--text-sub); font-size: 16px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border-neon);
  border-radius: 999px;
  font-size: 12px;
  color: var(--primary);
  background: rgba(168, 230, 59, 0.08);
  letter-spacing: 0.5px;
  box-shadow: 0 0 12px rgba(168, 230, 59, 0.12);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-main);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #0B0E12;
  box-shadow: 0 4px 20px rgba(168, 230, 59, 0.25);
}
.btn-primary:hover {
  background: #b8f04a;
  color: #0B0E12;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(168, 230, 59, 0.4);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(168, 230, 59, 0.3);
}
.btn-light {
  height: 42px;
  padding: 0 22px;
  font-size: 14px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(11, 14, 18, 0.8);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-neon), transparent);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(168, 230, 59, 0.08);
  border: 1px solid var(--border-neon);
  border-radius: 10px;
  box-shadow: 0 0 14px rgba(168, 230, 59, 0.15);
}
.brand-icon svg { width: 22px; height: 22px; }
.brand-text { font-size: 17px; font-weight: 800; color: var(--text-main); letter-spacing: 0.2px; }
.brand-text b { color: var(--primary); font-weight: 800; text-shadow: 0 0 12px rgba(168, 230, 59, 0.4); }
.main-nav ul { display: flex; align-items: center; gap: 28px; }
.main-nav li a {
  font-size: 15px;
  color: var(--text-sub);
  padding: 8px 0;
  position: relative;
  transition: color var(--transition), text-shadow var(--transition);
}
.main-nav li a:hover { color: var(--text-main); }
.main-nav li a.active { color: var(--primary); text-shadow: 0 0 12px rgba(168, 230, 59, 0.25); }
.main-nav li a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--primary);
  box-shadow: 0 0 12px rgba(168, 230, 59, 0.5);
  border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; }
.nav-cta-mobile { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all var(--transition);
  box-shadow: 0 0 8px rgba(168, 230, 59, 0.3);
}

/* Hero */
.hero {
  padding-top: 120px;
  padding-bottom: 72px;
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  background-image: linear-gradient(180deg, rgba(11, 14, 18, 0.75) 0%, rgba(11, 14, 18, 0.9) 60%, #0B0E12 100%), url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
}
.hero-inner { max-width: 800px; }
.hero .badge { margin-bottom: 22px; }
.hero h1 {
  font-size: 54px;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero h1 .hl { color: var(--primary); text-shadow: 0 0 24px rgba(168, 230, 59, 0.45); }
.hero-desc {
  font-size: 18px;
  color: var(--text-sub);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-metrics { display: flex; flex-wrap: wrap; gap: 40px; margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--border); }
.hero-metric { display: flex; flex-direction: column; gap: 4px; }
.hero-metric strong {
  font-family: var(--font-num);
  font-size: 32px;
  color: var(--primary);
  line-height: 1.1;
}
.hero-metric span { font-size: 13px; color: var(--text-weak); }

/* Quick guide strip */
.guide-strip { background: var(--bg-panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; padding: 40px 0; }
.guide-item { display: flex; gap: 16px; align-items: flex-start; padding: 24px; background: var(--bg-float); border: 1px solid var(--border); border-radius: var(--radius-card); transition: all var(--transition); }
.guide-item:hover { border-color: var(--border-neon); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.guide-num { font-family: var(--font-num); font-size: 32px; color: var(--primary); line-height: 1; opacity: 0.85; }
.guide-body h3 { font-size: 18px; margin-bottom: 6px; }
.guide-body p { font-size: 14px; color: var(--text-sub); margin: 0; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 20px; }
.step-card { position: relative; padding: 32px 24px 28px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; transition: all var(--transition); }
.step-card:hover { border-color: var(--border-neon); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-line { position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--primary), transparent); opacity: 0.8; }
.step-index { font-family: var(--font-num); font-size: 44px; color: rgba(168, 230, 59, 0.35); line-height: 1; margin-bottom: 14px; }
.step-card h3 { font-size: 18px; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-sub); margin-bottom: 14px; }
.step-link { font-size: 14px; color: var(--cyan); font-weight: 600; }
.step-link:hover { color: var(--primary); }

/* Scenarios */
.scenario-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; }
.scenario-main { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; display: flex; flex-direction: column; }
.scenario-main .scenario-img { aspect-ratio: 16 / 9; overflow: hidden; }
.scenario-main .scenario-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.scenario-main:hover .scenario-img img { transform: scale(1.03); }
.scenario-body { padding: 28px; }
.scenario-body h3 { font-size: 20px; margin-bottom: 10px; }
.scenario-body p { font-size: 15px; color: var(--text-sub); margin-bottom: 18px; }
.scenario-side { display: flex; flex-direction: column; gap: 24px; }
.scenario-mini { flex: 1; background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 26px; display: flex; flex-direction: column; justify-content: center; transition: all var(--transition); }
.scenario-mini:hover { border-color: var(--border-neon); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.scenario-mini .tag { margin-bottom: 10px; }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-tag);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  background: rgba(168, 230, 59, 0.06);
  letter-spacing: 0.3px;
}
.scenario-mini h4 { font-size: 16px; margin-bottom: 6px; }
.scenario-mini p { font-size: 14px; color: var(--text-sub); margin: 0; }

/* Topic cards grid */
.topic-section { background: var(--bg-panel); }
.topic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.topic-card {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.topic-card:hover { border-color: var(--border-neon); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.topic-card .topic-img { aspect-ratio: 16 / 9; overflow: hidden; position: relative; }
.topic-card .topic-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.topic-card:hover .topic-img img { transform: scale(1.04); }
.topic-card .topic-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(11, 14, 18, 0.75)); }
.topic-content { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.topic-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.topic-meta .tag { margin: 0; }
.topic-meta time { font-size: 13px; color: var(--text-weak); }
.topic-content h3 { font-size: 20px; margin-bottom: 10px; line-height: 1.4; }
.topic-content h3 a { color: var(--text-main); }
.topic-content h3 a:hover { color: var(--primary); }
.topic-content p { font-size: 14px; color: var(--text-sub); margin-bottom: 20px; flex: 1; }
.topic-link { font-size: 14px; color: var(--cyan); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }
.topic-link:hover { color: var(--primary); }

/* FAQ */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-card); background: var(--bg-panel); margin-bottom: 14px; overflow: hidden; transition: all var(--transition); }
.faq-item.open { border-color: var(--border-neon); box-shadow: 0 0 14px rgba(168, 230, 59, 0.1); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: none;
  padding: 20px 24px;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-main);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--primary); }
.faq-q .arrow {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  transition: transform var(--transition);
}
.faq-q .arrow::before, .faq-q .arrow::after {
  content: "";
  position: absolute;
  background: var(--text-sub);
  transition: background var(--transition);
}
.faq-q .arrow::before { width: 10px; height: 1.5px; left: 5px; top: 9px; }
.faq-q .arrow::after { width: 1.5px; height: 10px; left: 9px; top: 5px; }
.faq-item.open .arrow { transform: rotate(45deg); }
.faq-item.open .arrow::before, .faq-item.open .arrow::after { background: var(--primary); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 320ms ease; }
.faq-a p { padding: 0 24px 20px; color: var(--text-sub); font-size: 14px; line-height: 1.8; }

/* CTA */
.cta-bar {
  background: linear-gradient(135deg, rgba(168, 230, 59, 0.08), transparent 60%), var(--bg-panel);
  border: 1px solid var(--border-neon);
  border-radius: 16px;
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: 0 0 24px rgba(168, 230, 59, 0.08);
  position: relative;
  overflow: hidden;
}
.cta-bar::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  background: rgba(168, 230, 59, 0.1);
  filter: blur(80px);
  border-radius: 50%;
  right: -60px;
  top: -60px;
}
.cta-bar h2 { font-size: 24px; margin-bottom: 8px; }
.cta-bar p { color: var(--text-sub); font-size: 15px; margin: 0; }
.cta-bar .btn { flex-shrink: 0; }

/* Footer */
.site-footer { background: #07090C; border-top: 1px solid var(--border); position: relative; z-index: 1; }
.site-footer::before { content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(168, 230, 59, 0.6), transparent); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 48px;
  padding: 64px 0 40px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-sub); max-width: 320px; }
.footer-col h4 { font-size: 15px; color: var(--text-main); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 22px; height: 2px; background: var(--primary); box-shadow: 0 0 8px rgba(168, 230, 59, 0.4); }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; color: var(--text-sub); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-sub); }
.footer-contact svg { width: 16px; height: 16px; color: var(--cyan); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0 32px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}
.footer-bottom p { font-size: 13px; color: var(--text-weak); margin: 0; }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 240ms ease, visibility 240ms ease;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-panel {
  width: 100%;
  max-width: 480px;
  background: var(--bg-float);
  border-radius: 16px;
  border-top: 3px solid var(--primary);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5), 0 0 24px rgba(168, 230, 59, 0.08);
  padding: 40px 36px 32px;
  position: relative;
  transform: scale(0.96);
  transition: transform 240ms ease;
}
.modal-overlay.active .modal-panel { transform: scale(1); }
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-sub);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { color: var(--primary); border-color: var(--border-neon); }
.modal-panel h3 { font-size: 22px; margin-bottom: 8px; }
.modal-panel .modal-sub { font-size: 14px; color: var(--text-sub); margin-bottom: 28px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; color: var(--text-main); margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group select {
  width: 100%;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  background: var(--bg-deep);
  color: var(--text-main);
  padding: 0 14px;
  font-size: 14px;
  font-family: var(--font-main);
  transition: all var(--transition);
  appearance: none;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168, 230, 59, 0.15), 0 0 12px rgba(168, 230, 59, 0.2);
}
.form-check { display: flex; align-items: flex-start; gap: 10px; margin: 20px 0; }
.form-check input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--primary); }
.form-check label { font-size: 13px; color: var(--text-sub); line-height: 1.6; }
.form-check a { color: var(--cyan); }
.form-check a:hover { color: var(--primary); }
.form-submit { width: 100%; height: 48px; }
.modal-error {
  background: rgba(255, 93, 93, 0.12);
  border: 1px solid rgba(255, 93, 93, 0.4);
  color: var(--danger);
  border-radius: var(--radius-btn);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}
.modal-error.show { display: block; }
.modal-success { display: none; text-align: center; padding: 30px 0 20px; }
.modal-success.show { display: block; }
.modal-success .ok-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(168, 230, 59, 0.12);
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 0 24px rgba(168, 230, 59, 0.2);
}
.modal-success .ok-icon svg { width: 28px; height: 28px; color: var(--primary); }
.modal-success h4 { font-size: 20px; margin-bottom: 8px; }
.modal-success p { font-size: 14px; color: var(--text-sub); }

/* Responsive */
@media (max-width: 1023px) {
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(14, 17, 21, 0.98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    padding: 24px 32px 36px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    border-bottom: 1px solid var(--border-neon);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.4);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: all 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 6px; }
  .main-nav ul li { width: 100%; }
  .main-nav ul li a { display: block; font-size: 20px; padding: 10px 0; color: var(--text-main); }
  .main-nav ul li a::after { display: none; }
  .main-nav ul li a.active { color: var(--primary); }
  .nav-cta { display: none; }
  .nav-cta-mobile { display: block; width: 100%; }
  .nav-cta-mobile .btn { width: 100%; }
  .hamburger { display: flex; }
  .guide-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 40px; }
}
@media (max-width: 767px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  h2 { font-size: 26px; }
  .brand-text { font-size: 15px; }
  .brand-icon { width: 32px; height: 32px; }
  .hero { padding-top: 100px; padding-bottom: 56px; min-height: auto; }
  .hero h1 { font-size: 32px; }
  .hero-desc { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .hero-metrics { gap: 24px; }
  .hero-metric strong { font-size: 26px; }
  .guide-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr; }
  .cta-bar { flex-direction: column; align-items: stretch; padding: 32px 24px; text-align: center; }
  .cta-bar .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 48px 0 32px; }
  .footer-bottom { flex-direction: column; }
  .modal-panel { padding: 32px 24px 28px; }
  .scenario-body { padding: 20px; }
}