/* roulang page: index */
:root {
  --bg-canvas: #F4F8FB;
  --bg-card: #FFFFFF;
  --brand-blue: #1668A8;
  --brand-blue-dark: #0E4A7B;
  --brand-blue-light: #E8F1F8;
  --neon-teal: #00D4C8;
  --energy-orange: #FF7A2F;
  --text-primary: #1E2A36;
  --text-secondary: #5A6B7C;
  --text-muted: #8A99A8;
  --border-light: #DCE8F2;
  --dark-panel: #0E1C2B;
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-card: 0 4px 20px rgba(14,28,43,0.06);
  --shadow-hover: 0 12px 32px rgba(14,28,43,0.12);
  --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; cursor: pointer; }
input, textarea, select { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
@media (min-width: 1024px) { .container { padding-left: 2rem; padding-right: 2rem; } }

/* ===== Header Nav ===== */
.site-header {
  background: var(--dark-panel);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 24px rgba(14,28,43,0.25);
}
.header-topline { height: 1px; background: var(--neon-teal); box-shadow: 0 0 12px rgba(0,212,200,0.7); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { display: flex; align-items: baseline; gap: 4px; color: #fff; line-height: 1.2; }
.logo-main { font-weight: 800; font-size: 1.4rem; letter-spacing: 0.02em; }
.logo-sub { font-size: 0.8rem; color: var(--neon-teal); font-weight: 600; letter-spacing: 0.1em; }
.nav-links { display: none; align-items: center; gap: 2px; }
@media (min-width: 1024px) { .nav-links { display: flex; } }
.nav-links a {
  display: block;
  padding: 10px 14px;
  color: #A7BCD0;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 6px;
  position: relative;
  transition: color 150ms ease;
}
.nav-links a:hover { color: var(--neon-teal); }
.nav-links a.active {
  color: var(--neon-teal);
  text-shadow: 0 0 12px rgba(0,212,200,0.45);
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  background: var(--neon-teal);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0,212,200,0.6);
}
.nav-cta {
  display: none;
  min-height: 40px;
  padding: 0 20px;
  background: var(--neon-teal);
  color: var(--dark-panel) !important;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 999px;
  align-items: center;
  gap: 6px;
  transition: box-shadow 150ms ease, transform 150ms ease;
}
.nav-cta:hover { box-shadow: 0 0 18px rgba(0,212,200,0.4); transform: translateY(-1px); }
.nav-cta:active { transform: translateY(0); }
.nav-cta:focus-visible, .btn-primary:focus-visible, .btn-outline:focus-visible, .form-submit:focus-visible, .nav-toggle:focus-visible {
  outline: 2px solid var(--neon-teal);
  outline-offset: 2px;
}
@media (min-width: 768px) { .nav-cta { display: inline-flex; } }
.nav-toggle {
  display: inline-flex;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  color: #fff;
  font-size: 1.3rem;
  align-items: center;
  justify-content: center;
  transition: border-color 150ms ease;
}
.nav-toggle:hover { border-color: var(--neon-teal); color: var(--neon-teal); }
@media (min-width: 1024px) { .nav-toggle { display: none; } }
.mobile-menu {
  display: none;
  background: var(--dark-panel);
  padding: 0 1rem 1.2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.mobile-menu.open { display: block; }
.mobile-menu a, .mobile-menu .mobile-cta {
  display: block;
  padding: 14px 12px;
  color: #A7BCD0;
  font-size: 1rem;
  border-radius: 8px;
  transition: color 150ms ease, background 150ms ease;
}
.mobile-menu a:hover { color: var(--neon-teal); background: rgba(255,255,255,0.04); }
.mobile-menu a.active { color: var(--neon-teal); background: rgba(0,212,200,0.08); }
.mobile-cta { margin-top: 8px; background: var(--neon-teal); color: var(--dark-panel) !important; font-weight: 700; text-align: center; }

/* ===== Hero ===== */
.hero { position: relative; background: var(--bg-canvas); overflow: hidden; padding: 72px 0 56px; }
@media (min-width: 1024px) { .hero { padding: 96px 0 72px; } }
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 12% 20%, rgba(22,104,168,0.10) 0, transparent 42%),
    radial-gradient(circle at 85% 70%, rgba(0,212,200,0.10) 0, transparent 40%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(14,28,43,0.04) 1px, transparent 1px), linear-gradient(to bottom, rgba(14,28,43,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent 85%);
}
.hero .container { position: relative; z-index: 2; }
.hero-grid-cols { display: grid; gap: 40px; align-items: center; }
@media (min-width: 1024px) { .hero-grid-cols { grid-template-columns: 1.05fr 0.95fr; gap: 56px; } }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.16em; color: var(--brand-blue); background: var(--brand-blue-light); border-radius: 999px; padding: 6px 14px; text-transform: uppercase; }
.hero-title { margin-top: 22px; font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.2; color: var(--text-primary); }
.hero-title .hl { color: var(--brand-blue); position: relative; }
.hero-title .hl::after { content: ""; position: absolute; left: 0; right: 0; bottom: 6px; height: 6px; background: rgba(0,212,200,0.3); z-index: -1; border-radius: 4px; }
.hero-sub { margin-top: 18px; font-size: 1.05rem; color: var(--text-secondary); max-width: 560px; }
.hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 14px; }
.btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 28px; background: var(--neon-teal); color: var(--dark-panel) !important; font-weight: 700; border-radius: 999px; font-size: 1rem; transition: box-shadow 150ms ease, transform 150ms ease, background 150ms ease; }
.btn-primary:hover { box-shadow: 0 0 18px rgba(0,212,200,0.4); background: #00e0d4; }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 28px; background: transparent; color: var(--brand-blue) !important; font-weight: 700; border: 1px solid var(--brand-blue); border-radius: 999px; font-size: 1rem; transition: background 150ms ease, border-color 150ms ease; }
.btn-outline:hover { background: var(--brand-blue-light); border-color: var(--brand-blue-dark); }
.btn-outline:active { transform: translateY(1px); }
.hero-privacy { margin-top: 16px; display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--text-muted); }
.hero-trust { margin-top: 44px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (min-width: 640px) { .hero-trust { grid-template-columns: repeat(4, 1fr); } }
.trust-item { display: flex; align-items: center; gap: 10px; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 12px; padding: 10px 14px; font-size: 0.85rem; color: var(--text-secondary); box-shadow: var(--shadow-card); }
.trust-item i { color: var(--brand-blue); font-size: 1.1rem; }
.hero-visual { position: relative; border-radius: 20px; overflow: hidden; box-shadow: 0 16px 48px rgba(14,28,43,0.18); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
.hero-visual .cover-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(14,28,43,0.55), transparent 60%); }
.hero-visual .badge-float { position: absolute; left: 18px; bottom: 18px; background: rgba(14,28,43,0.72); backdrop-filter: blur(6px); color: #fff; border-radius: 12px; padding: 10px 16px; font-size: 0.82rem; display: flex; align-items: center; gap: 8px; border: 1px solid rgba(0,212,200,0.35); }
.hero-visual .badge-float i { color: var(--neon-teal); }

/* ===== Pain Points ===== */
.pain-section { padding: 72px 0 24px; }
@media (min-width: 1024px) { .pain-section { padding: 100px 0 32px; } }
.pain-grid { display: grid; gap: 24px; }
@media (min-width: 768px) { .pain-grid { grid-template-columns: repeat(3, 1fr); } }
.pain-item { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-card); padding: 24px; display: flex; gap: 14px; box-shadow: var(--shadow-card); transition: box-shadow 150ms ease, transform 150ms ease; }
.pain-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.pain-icon { flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px; background: var(--brand-blue-light); color: var(--brand-blue); display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.pain-item h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.pain-item p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== Solutions ===== */
.solutions-section { padding: 56px 0 72px; }
@media (min-width: 1024px) { .solutions-section { padding: 80px 0 100px; } }
.section-head { margin-bottom: 42px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 700; line-height: 1.3; color: var(--text-primary); margin-top: 12px; }
.section-head p { margin-top: 12px; color: var(--text-secondary); font-size: 1rem; }
.sol-grid { display: grid; gap: 24px; }
@media (min-width: 768px) { .sol-grid { grid-template-columns: repeat(2, 1fr); } }
.sol-card { background: var(--bg-card); border-radius: var(--radius-card); border: 1px solid var(--border-light); overflow: hidden; box-shadow: var(--shadow-card); display: flex; flex-direction: column; position: relative; transition: box-shadow 150ms ease, transform 150ms ease, border-color 150ms ease; }
.sol-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--neon-teal); transform: scaleX(0); transform-origin: left; transition: transform 200ms ease; z-index: 2; }
.sol-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--neon-teal); }
.sol-card:hover::before { transform: scaleX(1); }
.sol-cover { height: 180px; overflow: hidden; position: relative; }
.sol-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.sol-card:hover .sol-cover img { transform: scale(1.04); }
.sol-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.sol-icon { width: 40px; height: 40px; border-radius: 12px; background: var(--brand-blue-light); color: var(--brand-blue); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; margin-bottom: 14px; transition: background 150ms ease, color 150ms ease; }
.sol-card:hover .sol-icon { background: var(--neon-teal); color: var(--dark-panel); }
.sol-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); }
.sol-body p { margin-top: 8px; color: var(--text-secondary); font-size: 0.92rem; flex: 1; }
.sol-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; color: var(--brand-blue); font-weight: 600; font-size: 0.9rem; transition: gap 150ms ease; }
.sol-link:hover { gap: 10px; color: var(--neon-teal); }
.sol-wide { grid-column: 1 / -1; }
.sol-wide-card { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); display: grid; gap: 0; }
@media (min-width: 768px) { .sol-wide-card { grid-template-columns: 1fr 1fr; align-items: stretch; } }
.sol-wide-body { padding: 32px; display: flex; flex-direction: column; justify-content: center; }
.sol-wide-body h3 { font-size: 1.3rem; font-weight: 700; }
.sol-wide-body p { margin-top: 12px; color: var(--text-secondary); }
.sol-wide-cover { position: relative; min-height: 240px; }
.sol-wide-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

/* ===== Stats ===== */
.stats-section { background: var(--brand-blue-light); border-top: 2px solid var(--brand-blue); padding: 56px 0 64px; }
@media (min-width: 1024px) { .stats-section { padding: 72px 0 80px; } }
.stats-grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 1024px) { .stats-grid { grid-template-columns: 0.9fr 1.1fr; gap: 64px; } }
.stats-info h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 700; line-height: 1.3; color: var(--text-primary); }
.stats-info p { margin-top: 14px; color: var(--text-secondary); }
.stats-numbers { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 32px; }
.stat-num { font-size: clamp(2.5rem, 5vw, 3.6rem); font-weight: 800; color: var(--brand-blue); line-height: 1.1; font-variant-numeric: tabular-nums; display: block; }
.stat-line { display: block; width: 32px; height: 3px; background: var(--neon-teal); border-radius: 3px; margin-top: 8px; box-shadow: 0 0 10px rgba(0,212,200,0.5); }
.stat-label { margin-top: 8px; color: var(--text-secondary); font-size: 0.9rem; }

/* ===== Latest News ===== */
.news-section { padding: 72px 0; }
@media (min-width: 1024px) { .news-section { padding: 100px 0; } }
.news-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 40px; }
.news-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-blue); font-weight: 600; font-size: 0.9rem; transition: gap 150ms ease; white-space: nowrap; }
.news-link:hover { gap: 12px; color: var(--neon-teal); }
.news-list { display: grid; gap: 20px; }
.news-item { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); display: grid; grid-template-columns: 120px 1fr; transition: box-shadow 150ms ease, transform 150ms ease; }
@media (min-width: 640px) { .news-item { grid-template-columns: 220px 1fr; } }
.news-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-thumb { position: relative; min-height: 120px; }
.news-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.news-body { padding: 18px 20px; display: flex; flex-direction: column; justify-content: center; }
.news-body h3 { font-size: 1.02rem; font-weight: 700; color: var(--text-primary); line-height: 1.45; }
.news-body p { margin-top: 6px; color: var(--text-secondary); font-size: 0.88rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-top: 12px; font-size: 0.8rem; color: var(--text-muted); }
.badge { display: inline-block; background: var(--brand-blue-light); color: var(--brand-blue); border-radius: 999px; padding: 3px 12px; font-weight: 600; font-size: 0.75rem; }
.news-empty { border: 2px dashed var(--border-light); border-radius: var(--radius-card); background: var(--bg-card); text-align: center; padding: 56px 24px; color: var(--text-muted); }
.news-empty i { font-size: 2rem; color: var(--border-light); margin-bottom: 12px; display: block; }

/* ===== CTA Banner ===== */
.cta-section { padding: 24px 0 72px; }
@media (min-width: 1024px) { .cta-section { padding: 24px 0 100px; } }
.cta-card { background: var(--dark-panel); border-radius: 20px; position: relative; overflow: hidden; padding: 48px 32px; text-align: center; }
@media (min-width: 768px) { .cta-card { padding: 64px 56px; } }
.cta-card::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 70% 20%, rgba(0,212,200,0.18) 0, transparent 45%); pointer-events: none; }
.cta-card h2 { color: #fff; font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; position: relative; }
.cta-card p { color: #A7BCD0; margin-top: 14px; max-width: 520px; margin-left: auto; margin-right: auto; position: relative; font-size: 0.96rem; }
.cta-card .btn-primary { margin-top: 28px; position: relative; background: var(--energy-orange); color: #fff !important; }
.cta-card .btn-primary:hover { box-shadow: 0 0 20px rgba(255,122,47,0.45); background: #f56c1c; }

/* ===== FAQ ===== */
.faq-section { padding: 24px 0 80px; }
@media (min-width: 1024px) { .faq-section { padding: 24px 0 100px; } }
.faq-wrap { max-width: 768px; margin: 0 auto; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-card); box-shadow: var(--shadow-card); overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--border-light); }
.faq-item:last-child { border-bottom: none; }
.faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 20px 24px; background: transparent; color: var(--text-primary); font-size: 1rem; font-weight: 600; text-align: left; transition: color 150ms ease; }
.faq-question:hover { color: var(--brand-blue); }
.faq-question i { color: var(--brand-blue); transition: transform 200ms ease, color 200ms ease; flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(45deg); color: var(--neon-teal); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 200ms ease; }
.faq-answer-inner { padding: 0 24px 20px; color: var(--text-secondary); font-size: 0.93rem; line-height: 1.7; }

/* ===== Footer ===== */
.site-footer { background: var(--dark-panel); position: relative; }
.footer-topline { height: 1px; background: var(--neon-teal); box-shadow: 0 0 12px rgba(0,212,200,0.6); }
.footer-main { padding: 56px 0 32px; }
.footer-grid { display: grid; gap: 36px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.2fr 0.8fr 0.9fr 1fr; gap: 48px; } }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { color: #A7BCD0; font-size: 0.88rem; line-height: 1.7; max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 18px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: #A7BCD0; font-size: 0.95rem; transition: background 150ms ease, color 150ms ease, transform 150ms ease; }
.footer-social a:hover { background: var(--neon-teal); color: var(--dark-panel); transform: translateY(-2px); }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: #A7BCD0; font-size: 0.88rem; transition: color 150ms ease, padding-left 150ms ease; }
.footer-col ul a:hover { color: var(--neon-teal); padding-left: 4px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; color: #A7BCD0; font-size: 0.88rem; margin-bottom: 12px; }
.footer-contact li i { color: var(--neon-teal); margin-top: 4px; width: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; color: #6b7f92; font-size: 0.8rem; }
.footer-bottom .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ===== Modal ===== */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; visibility: hidden; transition: opacity 200ms ease, visibility 200ms ease; }
.modal.open { opacity: 1; visibility: visible; }
.modal-overlay { position: absolute; inset: 0; background: rgba(14,28,43,0.6); }
.modal-panel { position: relative; z-index: 2; background: var(--bg-card); border-radius: var(--radius-card); max-width: 520px; width: 100%; padding: 32px; box-shadow: 0 24px 80px rgba(14,28,43,0.35); transform: translateY(20px); transition: transform 200ms ease; }
.modal.open .modal-panel { transform: translateY(0); }
.modal-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border-radius: 50%; background: var(--brand-blue-light); color: var(--brand-blue); display: flex; align-items: center; justify-content: center; font-size: 0.95rem; transition: background 150ms ease, color 150ms ease; }
.modal-close:hover { background: var(--energy-orange); color: #fff; }
.modal-panel h3 { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); }
.modal-panel > p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 6px; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.form-group label span { color: #e04a2f; }
.form-control { width: 100%; height: 48px; border-radius: var(--radius-btn); border: 1px solid var(--border-light); background: #F8FAFD; padding: 0 16px; font-size: 0.95rem; color: var(--text-primary); transition: border-color 150ms ease, box-shadow 150ms ease; }
textarea.form-control { height: auto; min-height: 96px; padding-top: 12px; resize: vertical; }
.form-control:focus { outline: none; border-color: var(--brand-blue); box-shadow: 0 0 0 4px rgba(22,104,168,0.12); }
.form-submit { width: 100%; height: 48px; background: var(--energy-orange); color: #fff; font-weight: 700; font-size: 1rem; border-radius: var(--radius-btn); transition: background 150ms ease, box-shadow 150ms ease; }
.form-submit:hover { background: #f56c1c; box-shadow: 0 0 16px rgba(255,122,47,0.35); }
.form-submit:active { transform: translateY(1px); }
.form-privacy { margin-top: 12px; font-size: 0.75rem; color: var(--text-muted); text-align: center; }

/* ===== Tailwind utility overrides ===== */
.section-pad { padding: 56px 0; }
@media (min-width: 1024px) { .section-pad { padding: 80px 0; } }

/* roulang page: article */
:root {
      --color-bg: #F4F8FB;
      --color-card: #FFFFFF;
      --color-brand: #1668A8;
      --color-brand-dark: #0E4A7B;
      --color-brand-light: #E8F1F8;
      --color-neon: #00D4C8;
      --color-accent: #FF7A2F;
      --color-text: #1E2A36;
      --color-text-secondary: #5A6B7C;
      --color-text-muted: #8A99A8;
      --color-border: #DCE8F2;
      --color-dark: #0E1C2B;
      --radius-card: 16px;
      --radius-btn: 8px;
      --shadow-card: 0 4px 20px rgba(14,28,43,0.06);
      --shadow-hover: 0 12px 32px rgba(14,28,43,0.12);
      --shadow-neon: 0 0 18px rgba(0,212,200,0.4);
      --font-main: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background-color: var(--color-bg);
      color: var(--color-text);
      line-height: 1.75;
      font-size: 1rem;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: var(--color-brand);
      text-decoration: none;
      transition: color 0.15s ease;
    }

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

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      max-width: 80rem;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    @media (min-width: 1024px) {
      .container {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    /* ---------- Header / Nav ---------- */
    .site-header {
      background-color: var(--color-dark);
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(0, 212, 200, 0.2);
    }

    .header-topline {
      height: 1px;
      background: linear-gradient(90deg, var(--color-neon), transparent 40%, var(--color-neon));
      box-shadow: 0 0 12px rgba(0, 212, 200, 0.6);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    @media (max-width: 767px) {
      .header-inner {
        height: 64px;
      }
    }

    .logo {
      display: inline-flex;
      align-items: baseline;
      gap: 0.25rem;
      font-weight: 800;
      color: #fff;
      font-size: 1.35rem;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }

    .logo-main {
      color: #fff;
      position: relative;
    }

    .logo-main::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -4px;
      width: 100%;
      height: 2px;
      background: var(--color-neon);
      box-shadow: 0 0 8px rgba(0, 212, 200, 0.7);
    }

    .logo-sub {
      color: var(--color-neon);
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.1em;
      background: rgba(0, 212, 200, 0.12);
      border: 1px solid rgba(0, 212, 200, 0.3);
      border-radius: 999px;
      padding: 0.05rem 0.5rem;
      line-height: 1.4;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0.25rem;
    }

    .nav-links a {
      color: #A7BCD0;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 0.5rem 0.9rem;
      border-radius: 8px;
      transition: color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
      position: relative;
    }

    .nav-links a:hover {
      color: var(--color-neon);
      background: rgba(0, 212, 200, 0.06);
    }

    .nav-links a.active {
      color: var(--color-neon);
      text-shadow: 0 0 12px rgba(0, 212, 200, 0.5);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: -2px;
      width: 60%;
      height: 2px;
      background: var(--color-neon);
      border-radius: 2px;
      box-shadow: 0 0 10px rgba(0, 212, 200, 0.8);
    }

    .header-cta {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .btn-neon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0.55rem 1.4rem;
      background: var(--color-neon);
      color: var(--color-dark);
      font-weight: 700;
      border-radius: var(--radius-btn);
      border: none;
      cursor: pointer;
      transition: box-shadow 0.15s ease, transform 0.15s ease, background-color 0.15s ease;
      font-size: 0.95rem;
      white-space: nowrap;
    }

    .btn-neon:hover {
      box-shadow: var(--shadow-neon);
      background: #00c4b8;
      color: var(--color-dark);
    }

    .btn-neon:active {
      transform: translateY(1px);
    }

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

    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 44px;
      height: 44px;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-btn);
      cursor: pointer;
      padding: 8px;
      transition: border-color 0.15s ease;
    }

    .hamburger:hover {
      border-color: var(--color-neon);
    }

    .hamburger span {
      display: block;
      height: 2px;
      width: 100%;
      background: var(--color-neon);
      border-radius: 2px;
      transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .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);
    }

    @media (max-width: 1023px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: var(--color-dark);
        padding: 0.75rem 1rem 1.25rem;
        border-bottom: 1px solid rgba(0, 212, 200, 0.2);
        box-shadow: 0 20px 40px rgba(14, 28, 43, 0.3);
      }

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

      .nav-links a {
        padding: 0.75rem 1rem;
        border-radius: 8px;
      }

      .nav-links a.active::after {
        display: none;
      }

      .nav-links a.active {
        background: rgba(0, 212, 200, 0.1);
      }

      .hamburger {
        display: flex;
      }
    }

    /* ---------- Breadcrumb ---------- */
    .breadcrumb {
      background: var(--color-brand-light);
      border-bottom: 1px solid var(--color-border);
      padding: 0.85rem 0;
      font-size: 0.875rem;
      color: var(--color-text-muted);
    }

    .breadcrumb .container {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.45rem;
    }

    .breadcrumb a {
      color: var(--color-text-secondary);
      transition: color 0.15s ease;
    }

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

    .breadcrumb .sep {
      color: var(--color-text-muted);
    }

    .breadcrumb .current {
      color: var(--color-text-secondary);
      font-weight: 500;
      max-width: 320px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    /* ---------- Article Header ---------- */
    .article-page {
      padding: 2.5rem 0 3.5rem;
    }

    .article-wrap {
      max-width: 72rem;
      margin: 0 auto;
    }

    .article-head {
      text-align: center;
      max-width: 52rem;
      margin: 0 auto 2.25rem;
    }

    .article-head h1 {
      font-size: clamp(1.9rem, 3.6vw, 3rem);
      font-weight: 800;
      line-height: 1.25;
      color: var(--color-text);
      margin: 0.75rem 0 1.1rem;
      letter-spacing: 0.01em;
    }

    .article-meta {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 0.9rem;
      color: var(--color-text-muted);
      font-size: 0.875rem;
    }

    .article-meta .category-badge {
      background: var(--color-brand-light);
      color: var(--color-brand);
      font-weight: 600;
      border-radius: 999px;
      padding: 0.2rem 0.9rem;
      font-size: 0.8rem;
      transition: background-color 0.15s ease, color 0.15s ease;
    }

    .article-meta .category-badge:hover {
      background: var(--color-neon);
      color: var(--color-dark);
    }

    .article-meta .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

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

    /* ---------- Article Body ---------- */
    .article-body-wrap {
      max-width: 48rem;
      margin: 0 auto 2rem;
      background: var(--color-card);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
      padding: 2rem 2.25rem;
      transition: box-shadow 0.15s ease;
    }

    @media (max-width: 640px) {
      .article-body-wrap {
        padding: 1.3rem 1.15rem;
        border-radius: 12px;
      }
    }

    .article-content {
      font-size: 1rem;
      line-height: 1.85;
      color: var(--color-text);
      word-break: break-word;
    }

    .article-content p {
      margin-bottom: 1.5em;
    }

    .article-content h2 {
      font-size: 1.45rem;
      font-weight: 700;
      line-height: 1.35;
      color: var(--color-text);
      margin: 2.1em 0 0.75em;
      padding-bottom: 0.35em;
      border-bottom: 1px solid var(--color-border);
    }

    .article-content h3 {
      font-size: 1.18rem;
      font-weight: 700;
      line-height: 1.4;
      color: var(--color-brand-dark);
      margin: 1.7em 0 0.6em;
    }

    .article-content ul,
    .article-content ol {
      margin: 1em 0 1.5em;
      padding-left: 1.5em;
    }

    .article-content ul li,
    .article-content ol li {
      margin-bottom: 0.5em;
    }

    .article-content ul li::marker {
      color: var(--color-neon);
    }

    .article-content ol li::marker {
      color: var(--color-brand);
      font-weight: 700;
    }

    .article-content img {
      border-radius: 12px;
      border: 1px solid var(--color-border);
      margin: 1.5em auto;
      box-shadow: 0 4px 16px rgba(14, 28, 43, 0.05);
    }

    .article-content blockquote {
      border-left: 4px solid var(--color-neon);
      background: var(--color-brand-light);
      padding: 1em 1.25em;
      margin: 1.5em 0;
      border-radius: 0 12px 12px 0;
      color: var(--color-text-secondary);
      font-style: normal;
    }

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

    .article-content a {
      color: var(--color-brand);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

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

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.5em 0;
      font-size: 0.95rem;
    }

    .article-content table th,
    .article-content table td {
      border: 1px solid var(--color-border);
      padding: 0.65rem 0.8rem;
      text-align: left;
    }

    .article-content table th {
      background: var(--color-brand-light);
      color: var(--color-brand-dark);
      font-weight: 600;
    }

    .article-content table tr:nth-child(even) td {
      background: #F8FAFD;
    }

    /* ---------- Article Tags / Share ---------- */
    .article-footer-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
      margin-top: 1.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--color-border);
    }

    .article-tags {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.5rem;
    }

    .article-tags .tag {
      background: var(--color-brand-light);
      color: var(--color-brand);
      font-size: 0.78rem;
      border-radius: 999px;
      padding: 0.25rem 0.85rem;
      transition: background-color 0.15s ease, color 0.15s ease;
    }

    .article-tags .tag:hover {
      background: var(--color-neon);
      color: var(--color-dark);
    }

    .article-share {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.875rem;
      color: var(--color-text-muted);
    }

    .article-share a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--color-brand-light);
      color: var(--color-brand);
      transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
    }

    .article-share a:hover {
      background: var(--color-neon);
      color: var(--color-dark);
      transform: translateY(-2px);
    }

    /* ---------- Related Section ---------- */
    .related-section {
      max-width: 64rem;
      margin: 0 auto 2rem;
    }

    .related-section .section-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 1.5rem;
    }

    .related-section .section-head h2 {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--color-text);
      position: relative;
      padding-left: 0.9rem;
    }

    .related-section .section-head h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 20px;
      background: var(--color-neon);
      border-radius: 2px;
      box-shadow: 0 0 8px rgba(0, 212, 200, 0.5);
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }

    @media (max-width: 900px) {
      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 600px) {
      .related-grid {
        grid-template-columns: 1fr;
      }
    }

    .related-card {
      background: var(--color-card);
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      transition: transform 0.15s ease, box-shadow 0.15s ease;
      display: flex;
      flex-direction: column;
    }

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

    .related-card .card-media {
      aspect-ratio: 16 / 9;
      overflow: hidden;
    }

    .related-card .card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.25s ease;
    }

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

    .related-card .card-body {
      padding: 1.15rem 1.25rem 1.25rem;
      display: flex;
      flex-direction: column;
      gap: 0.4rem;
      flex: 1;
    }

    .related-card .card-body h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text);
      line-height: 1.45;
      transition: color 0.15s ease;
    }

    .related-card .card-body h3 a {
      color: var(--color-text);
    }

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

    .related-card .card-meta {
      display: flex;
      align-items: center;
      gap: 0.65rem;
      font-size: 0.8rem;
      color: var(--color-text-muted);
      margin-top: auto;
    }

    .related-card .card-meta .badge {
      background: var(--color-brand-light);
      color: var(--color-brand);
      font-weight: 600;
      border-radius: 999px;
      padding: 0.1rem 0.65rem;
      font-size: 0.75rem;
    }

    /* ---------- Return Link ---------- */
    .return-entry {
      text-align: center;
      margin: 2rem 0 0;
    }

    .return-entry a {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      color: var(--color-text-secondary);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 0.4rem 1rem;
      border-radius: var(--radius-btn);
      transition: color 0.15s ease, background-color 0.15s ease;
    }

    .return-entry a:hover {
      color: var(--color-brand);
      background: var(--color-brand-light);
    }

    .return-entry a i {
      transition: transform 0.15s ease;
    }

    .return-entry a:hover i {
      transform: translateX(-4px);
    }

    /* ---------- Not Found ---------- */
    .not-found-box {
      max-width: 36rem;
      margin: 3rem auto 4rem;
      text-align: center;
      background: var(--color-card);
      border-radius: var(--radius-card);
      border: 1px dashed var(--color-border);
      padding: 4rem 2rem;
      box-shadow: var(--shadow-card);
    }

    .not-found-box i {
      font-size: 3rem;
      color: var(--color-neon);
      margin-bottom: 1rem;
    }

    .not-found-box p {
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      margin-bottom: 1.5rem;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0.55rem 1.6rem;
      background: var(--color-brand);
      color: #fff;
      font-weight: 700;
      border-radius: var(--radius-btn);
      border: none;
      cursor: pointer;
      transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
      font-size: 0.95rem;
    }

    .btn-primary:hover {
      background: var(--color-brand-dark);
      color: #fff;
      box-shadow: 0 6px 20px rgba(22, 104, 168, 0.3);
    }

    .btn-primary:active {
      transform: translateY(1px);
    }

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

    /* ---------- CTA Block ---------- */
    .article-cta {
      max-width: 64rem;
      margin: 0 auto 2.5rem;
      background: linear-gradient(135deg, var(--color-dark) 0%, #152A40 100%);
      border-radius: var(--radius-card);
      padding: 2.5rem 2rem;
      text-align: center;
      position: relative;
      overflow: hidden;
      border-top: 2px solid var(--color-neon);
    }

    .article-cta::before {
      content: "";
      position: absolute;
      top: -60px;
      right: -60px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 212, 200, 0.2) 0%, transparent 70%);
    }

    .article-cta h3 {
      font-size: 1.5rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 0.6rem;
    }

    .article-cta p {
      color: #A7BCD0;
      font-size: 0.95rem;
      max-width: 32rem;
      margin: 0 auto 1.5rem;
    }

    .article-cta .btn-neon {
      min-width: 180px;
    }

    @media (max-width: 600px) {
      .article-cta {
        padding: 2rem 1.25rem;
      }
      .article-cta h3 {
        font-size: 1.2rem;
      }
    }

    /* ---------- Footer ---------- */
    .site-footer {
      background-color: var(--color-dark);
      color: #A7BCD0;
      margin-top: 3rem;
    }

    .footer-topline {
      height: 1px;
      background: linear-gradient(90deg, var(--color-neon), transparent 50%, var(--color-neon));
      box-shadow: 0 0 12px rgba(0, 212, 200, 0.5);
    }

    .footer-main {
      padding: 3.5rem 0 2rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
      gap: 2.5rem;
    }

    @media (max-width: 1023px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
      }
    }

    @media (max-width: 600px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    .footer-brand .logo {
      margin-bottom: 1rem;
    }

    .footer-brand p {
      color: #7E94A8;
      font-size: 0.9rem;
      line-height: 1.7;
      margin-bottom: 1.25rem;
      max-width: 280px;
    }

    .footer-social {
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: #A7BCD0;
      transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
    }

    .footer-social a:hover {
      background: var(--color-neon);
      color: var(--color-dark);
      border-color: var(--color-neon);
      transform: translateY(-2px);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1.1rem;
    }

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

    .footer-col ul li {
      margin-bottom: 0.55rem;
    }

    .footer-col ul a {
      color: #7E94A8;
      font-size: 0.88rem;
      transition: color 0.15s ease, padding-left 0.15s ease;
    }

    .footer-col ul a:hover {
      color: var(--color-neon);
      padding-left: 3px;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      color: #7E94A8;
      font-size: 0.88rem;
      margin-bottom: 0.6rem;
    }

    .footer-contact li i {
      color: var(--color-neon);
      width: 16px;
      text-align: center;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 1.2rem 0;
    }

    .footer-bottom .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 0.5rem;
      font-size: 0.8rem;
      color: #6E8498;
    }

    @media (max-width: 640px) {
      .footer-bottom .container {
        justify-content: center;
        text-align: center;
      }
    }

    .footer-bottom a {
      color: #6E8498;
    }

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

    /* ---------- Focus ---------- */
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--color-neon);
      outline-offset: 2px;
      border-radius: 6px;
    }

    /* ---------- Misc ---------- */
    .eyebrow-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--color-brand);
      background: var(--color-brand-light);
      border: 1px solid #CDE0F0;
      padding: 0.25rem 0.9rem;
      border-radius: 999px;
      margin-bottom: 1rem;
    }

    .eyebrow-tag i {
      color: var(--color-neon);
    }

    /* ---------- Article Page Main ---------- */
    .article-page-main {
      padding: 2rem 0 1rem;
    }

    @media (max-width: 640px) {
      .article-page-main {
        padding: 1.25rem 0 0.5rem;
      }
    }

/* roulang page: category1 */
:root {
      --color-brand: #1668A8;
      --color-brand-dark: #0E4A7B;
      --color-brand-light: #E8F1F8;
      --color-neon: #00D4C8;
      --color-energy: #FF7A2F;
      --color-energy-dark: #F56C1C;
      --color-bg: #F4F8FB;
      --color-card: #FFFFFF;
      --color-text: #1E2A36;
      --color-text-secondary: #5A6B7C;
      --color-text-muted: #8A99A8;
      --color-border: #DCE8F2;
      --color-dark: #0E1C2B;
      --radius-card: 16px;
      --radius-btn: 8px;
      --shadow-card: 0 4px 20px rgba(14, 28, 43, 0.06);
      --shadow-hover: 0 12px 32px rgba(14, 28, 43, 0.12);
      --font-stack: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      background: var(--color-bg);
      color: var(--color-text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color .15s ease, border-color .15s ease, box-shadow .15s ease;
    }

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

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

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 1rem;
    }

    @media (min-width: 1024px) {
      .container {
        padding: 0 2rem;
      }
    }

    /* ======== Header / Nav ======== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: var(--color-dark);
      border-bottom: 1px solid rgba(0, 212, 200, 0.25);
    }

    .header-topline {
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--color-neon), transparent);
      box-shadow: 0 0 12px rgba(0, 212, 200, 0.55);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 1.5rem;
    }

    .logo {
      display: inline-flex;
      align-items: baseline;
      gap: 4px;
      white-space: nowrap;
    }

    .logo-main {
      color: #fff;
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: 0.02em;
    }

    .logo-sub {
      color: var(--color-neon);
      font-size: 0.875rem;
      font-weight: 600;
      padding-bottom: 2px;
      border-bottom: 2px solid var(--color-neon);
      box-shadow: 0 4px 12px rgba(0, 212, 200, 0.25);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.75rem;
      list-style: none;
    }

    .nav-links a {
      color: #A7BCD0;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 0.25rem 0;
      position: relative;
      transition: color .15s ease;
    }

    .nav-links a:hover {
      color: var(--color-neon);
    }

    .nav-links a.active {
      color: var(--color-neon);
      font-weight: 600;
    }

    .nav-links a.active::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -4px;
      width: 100%;
      height: 2px;
      background: var(--color-neon);
      box-shadow: 0 0 10px rgba(0, 212, 200, 0.8);
      border-radius: 2px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      min-height: 44px;
      padding: 0.625rem 1.5rem;
      border-radius: var(--radius-btn);
      font-size: 0.9375rem;
      font-weight: 700;
      transition: all .15s ease;
      line-height: 1.2;
      white-space: nowrap;
    }

    .btn:focus-visible {
      outline: 2px solid var(--color-neon);
      outline-offset: 3px;
    }

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

    .btn-primary:hover {
      box-shadow: 0 0 18px rgba(0, 212, 200, 0.4);
      transform: translateY(-1px);
    }

    .btn-primary:active {
      transform: translateY(1px);
    }

    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--color-brand);
      color: var(--color-brand);
    }

    .btn-secondary:hover {
      background: var(--color-brand-light);
    }

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

    .btn-energy:hover {
      background: var(--color-energy-dark);
      box-shadow: 0 6px 18px rgba(255, 122, 47, 0.35);
      transform: translateY(-1px);
    }

    .btn-energy:active {
      transform: translateY(1px);
    }

    .btn-ghost {
      background: transparent;
      border: 1.5px solid var(--color-neon);
      color: var(--color-neon);
    }

    .btn-ghost:hover {
      background: rgba(0, 212, 200, 0.12);
      box-shadow: 0 0 14px rgba(0, 212, 200, 0.2);
    }

    .btn-lg {
      min-height: 52px;
      padding: 0.875rem 2rem;
      font-size: 1rem;
    }

    .nav-toggle {
      display: none;
      background: transparent;
      color: #fff;
      font-size: 1.4rem;
      padding: 0.25rem;
      border-radius: var(--radius-btn);
    }

    .nav-toggle:focus-visible {
      outline: 2px solid var(--color-neon);
      outline-offset: 2px;
    }

    .mobile-menu {
      display: none;
      background: var(--color-dark);
      padding: 0.5rem 1rem 1.25rem;
      border-top: 1px solid rgba(0, 212, 200, 0.15);
    }

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

    .mobile-menu a {
      display: block;
      padding: 0.75rem 0.5rem;
      color: #A7BCD0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.9375rem;
    }

    .mobile-menu a:last-child {
      border-bottom: none;
    }

    .mobile-menu a:hover {
      color: var(--color-neon);
    }

    .mobile-menu a.active {
      color: var(--color-neon);
      font-weight: 600;
    }

    /* ======== Page Hero ======== */
    .page-hero {
      position: relative;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-color: var(--color-dark);
      overflow: hidden;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(14, 28, 43, 0.9) 20%, rgba(14, 28, 43, 0.55) 65%, rgba(14, 28, 43, 0.25));
      z-index: 1;
    }

    .page-hero .container {
      position: relative;
      z-index: 2;
      padding-top: 4.5rem;
      padding-bottom: 4.5rem;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.8125rem;
      color: #A7BCD0;
      margin-bottom: 1.75rem;
    }

    .breadcrumb a {
      color: #A7BCD0;
      transition: color .15s ease;
    }

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

    .breadcrumb span {
      color: #5A6B7C;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--color-neon);
      margin-bottom: 1rem;
    }

    .page-hero h1 {
      font-size: clamp(2rem, 4vw, 3.2rem);
      font-weight: 800;
      line-height: 1.2;
      color: #fff;
      max-width: 780px;
    }

    .page-hero h1 .highlight {
      color: var(--color-neon);
      text-shadow: 0 0 22px rgba(0, 212, 200, 0.4);
    }

    .page-hero .hero-desc {
      margin-top: 1.25rem;
      color: #C6D6E8;
      font-size: 1.0625rem;
      max-width: 620px;
      line-height: 1.8;
    }

    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-top: 2rem;
    }

    .hero-trust {
      display: flex;
      flex-wrap: wrap;
      gap: 1.75rem;
      margin-top: 2.75rem;
      padding-top: 1.75rem;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }

    .trust-item {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      color: #A7BCD0;
      font-size: 0.8125rem;
    }

    .trust-item i {
      color: var(--color-neon);
      font-size: 1rem;
      width: 1.25rem;
      text-align: center;
    }

    /* ======== Section ======== */
    .section {
      padding: 4.5rem 0;
    }

    .section-head {
      max-width: 720px;
      margin-bottom: 2.75rem;
    }

    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .section-head .eyebrow {
      color: var(--color-brand);
    }

    .section-head h2 {
      font-size: clamp(1.4rem, 2.5vw, 2rem);
      font-weight: 700;
      line-height: 1.3;
      color: var(--color-text);
      margin-top: 0.375rem;
    }

    .section-head p {
      color: var(--color-text-secondary);
      margin-top: 0.75rem;
      font-size: 1rem;
    }

    /* ======== Media Row (分类页1核心布局) ======== */
    .media-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
      margin-bottom: 3.5rem;
      background: var(--color-card);
      border-radius: var(--radius-card);
      padding: 1.25rem;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      transition: box-shadow .2s ease, transform .2s ease;
    }

    .media-row:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .media-row-image {
      overflow: hidden;
      border-radius: 12px;
      height: 320px;
      background: var(--color-brand-light);
    }

    .media-row-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .3s ease;
    }

    .media-row:hover .media-row-image img {
      transform: scale(1.03);
    }

    .media-row-content {
      padding: 0.75rem 0.5rem;
    }

    .media-row-content .tag {
      display: inline-block;
      background: var(--color-brand-light);
      color: var(--color-brand);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.875rem;
      border-radius: 999px;
      margin-bottom: 0.875rem;
      letter-spacing: 0.02em;
    }

    .media-row-content h3 {
      font-size: 1.375rem;
      font-weight: 700;
      line-height: 1.35;
      color: var(--color-text);
      margin-bottom: 0.75rem;
    }

    .media-row-content p {
      color: var(--color-text-secondary);
      font-size: 0.9375rem;
      line-height: 1.75;
      margin-bottom: 1.25rem;
    }

    .media-row-link {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      color: var(--color-brand);
      font-size: 0.875rem;
      font-weight: 700;
      transition: color .15s ease, gap .15s ease;
    }

    .media-row-link:hover {
      color: var(--color-neon);
      gap: 0.625rem;
    }

    .media-row.reverse .media-row-image {
      order: 2;
    }

    .media-row.reverse .media-row-content {
      order: 1;
    }

    /* ======== Stats Panel ======== */
    .stats-panel {
      background: var(--color-dark);
      position: relative;
      overflow: hidden;
    }

    .stats-panel::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--color-neon), transparent);
      box-shadow: 0 0 16px rgba(0, 212, 200, 0.5);
    }

    .stats-inner {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 3.5rem;
      align-items: center;
    }

    .stats-intro .eyebrow {
      color: var(--color-neon);
    }

    .stats-intro h2 {
      color: #fff;
      font-size: clamp(1.4rem, 2.5vw, 2rem);
      font-weight: 700;
      line-height: 1.35;
      max-width: 460px;
    }

    .stats-intro p {
      color: #A7BCD0;
      margin-top: 1rem;
      font-size: 0.9375rem;
      max-width: 460px;
    }

    .stats-intro .btn {
      margin-top: 1.5rem;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
    }

    .stat-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-card);
      padding: 1.75rem 1.5rem;
      transition: border-color .15s ease, background .15s ease;
    }

    .stat-item:hover {
      border-color: rgba(0, 212, 200, 0.45);
      background: rgba(255, 255, 255, 0.08);
    }

    .stat-number {
      font-size: clamp(2.5rem, 5vw, 4rem);
      font-weight: 800;
      color: #fff;
      line-height: 1;
      letter-spacing: -0.02em;
      font-variant-numeric: tabular-nums;
    }

    .stat-number em {
      font-style: normal;
      color: var(--color-neon);
      font-size: 0.5em;
      margin-left: 4px;
      vertical-align: middle;
    }

    .stat-label {
      color: var(--color-text-muted);
      font-size: 0.8125rem;
      margin-top: 0.75rem;
      padding-top: 0.75rem;
      border-top: 2px solid rgba(0, 212, 200, 0.5);
      line-height: 1.5;
    }

    /* ======== Scenario Cards ======== */
    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
    }

    .scenario-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 2rem;
      box-shadow: var(--shadow-card);
      transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
      position: relative;
      overflow: hidden;
    }

    .scenario-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: transparent;
      transition: background .2s ease;
    }

    .scenario-card:hover::before {
      background: var(--color-neon);
      box-shadow: 0 0 14px rgba(0, 212, 200, 0.6);
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 212, 200, 0.4);
    }

    .scenario-icon {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: var(--color-brand-light);
      color: var(--color-brand);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
      transition: background .2s ease, color .2s ease;
    }

    .scenario-card:hover .scenario-icon {
      background: var(--color-neon);
      color: var(--color-dark);
    }

    .scenario-card h3 {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 0.625rem;
    }

    .scenario-card p {
      color: var(--color-text-secondary);
      font-size: 0.9375rem;
      line-height: 1.75;
    }

    .scenario-wide {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      align-items: center;
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 1.25rem;
      box-shadow: var(--shadow-card);
      transition: box-shadow .2s ease, transform .2s ease;
    }

    .scenario-wide:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .scenario-wide-content {
      padding: 1rem 1.25rem;
    }

    .scenario-wide-content h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.625rem;
    }

    .scenario-wide-content p {
      color: var(--color-text-secondary);
      font-size: 0.9375rem;
      line-height: 1.75;
      max-width: 520px;
    }

    .scenario-wide-image {
      border-radius: 12px;
      overflow: hidden;
      height: 260px;
      background: var(--color-brand-light);
    }

    .scenario-wide-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* ======== Steps ======== */
    .steps-section {
      background: var(--color-brand-light);
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      margin-top: 2rem;
    }

    .step-item {
      position: relative;
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 2rem 1.75rem;
      text-align: left;
      box-shadow: var(--shadow-card);
      transition: transform .2s ease, box-shadow .2s ease;
    }

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

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: var(--color-dark);
      color: var(--color-neon);
      font-size: 1.125rem;
      font-weight: 800;
      margin-bottom: 1.25rem;
      box-shadow: 0 0 14px rgba(0, 212, 200, 0.25);
    }

    .step-item h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    .step-item p {
      color: var(--color-text-secondary);
      font-size: 0.875rem;
      line-height: 1.7;
    }

    .step-arrow {
      position: absolute;
      top: 2rem;
      right: -1.25rem;
      color: var(--color-neon);
      font-size: 1rem;
      z-index: 2;
      text-shadow: 0 0 8px rgba(0, 212, 200, 0.4);
    }

    /* ======== FAQ ======== */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: 12px;
      margin-bottom: 0.875rem;
      overflow: hidden;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .faq-item:hover {
      border-color: rgba(0, 212, 200, 0.4);
    }

    .faq-item + .faq-item {
      margin-top: 0;
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      width: 100%;
      padding: 1.125rem 1.5rem;
      background: transparent;
      color: var(--color-text);
      font-size: 1rem;
      font-weight: 600;
      text-align: left;
      transition: color .2s ease;
    }

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

    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--color-brand-light);
      color: var(--color-brand);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8125rem;
      font-weight: 700;
      transition: all .2s ease;
    }

    .faq-item.active .faq-icon {
      background: var(--color-neon);
      color: var(--color-dark);
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .25s ease;
    }

    .faq-answer .inner {
      padding: 0 1.5rem 1.25rem;
      color: var(--color-text-secondary);
      font-size: 0.9375rem;
      line-height: 1.75;
      border-top: 1px solid var(--color-border);
      padding-top: 1rem;
      margin: 0 1.5rem 0;
    }

    /* ======== CTA ======== */
    .cta-block {
      background: var(--color-dark);
      position: relative;
      overflow: hidden;
    }

    .cta-block::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 20% 30%, rgba(0, 212, 200, 0.12), transparent 55%),
        radial-gradient(circle at 80% 80%, rgba(22, 104, 168, 0.2), transparent 50%);
    }

    .cta-card {
      position: relative;
      text-align: center;
      max-width: 720px;
      margin: 0 auto;
      padding: 1rem 0;
    }

    .cta-card h2 {
      color: #fff;
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 800;
      line-height: 1.3;
    }

    .cta-card p {
      color: #A7BCD0;
      margin-top: 1rem;
      font-size: 1rem;
      line-height: 1.75;
    }

    .cta-card .btn {
      margin-top: 1.75rem;
    }

    .cta-note {
      color: var(--color-text-muted);
      font-size: 0.75rem;
      margin-top: 1rem;
    }

    .cta-note i {
      margin-right: 0.25rem;
    }

    /* ======== Footer ======== */
    .site-footer {
      background: var(--color-dark);
      color: #A7BCD0;
    }

    .footer-topline {
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--color-neon), transparent);
      box-shadow: 0 0 14px rgba(0, 212, 200, 0.5);
    }

    .footer-main {
      padding: 4rem 0 2.5rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 2.5rem;
    }

    .footer-brand .logo {
      margin-bottom: 1rem;
    }

    .footer-brand p {
      color: #8A99A8;
      font-size: 0.875rem;
      line-height: 1.75;
      max-width: 320px;
    }

    .footer-social {
      display: flex;
      gap: 0.875rem;
      margin-top: 1.25rem;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.06);
      color: #A7BCD0;
      font-size: 1rem;
      transition: all .15s ease;
    }

    .footer-social a:hover {
      background: var(--color-neon);
      color: var(--color-dark);
      box-shadow: 0 0 14px rgba(0, 212, 200, 0.35);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 0.9375rem;
      font-weight: 700;
      margin-bottom: 1.125rem;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.625rem;
    }

    .footer-col ul li a {
      color: #8A99A8;
      font-size: 0.875rem;
      transition: color .15s ease;
    }

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

    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 0.625rem;
      font-size: 0.875rem;
      color: #8A99A8;
      line-height: 1.6;
    }

    .footer-contact i {
      color: var(--color-neon);
      margin-top: 0.25rem;
      width: 1rem;
      text-align: center;
      flex-shrink: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 1.5rem 0;
    }

    .footer-bottom .container {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 0.5rem;
      color: #5A6B7C;
      font-size: 0.8125rem;
    }

    /* ======== Modal ======== */
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(14, 28, 43, 0.6);
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 1rem;
      opacity: 0;
      visibility: hidden;
      transition: opacity .2s ease, visibility .2s ease;
    }

    .modal-overlay.is-open {
      opacity: 1;
      visibility: visible;
    }

    .modal {
      background: #fff;
      border-radius: var(--radius-card);
      max-width: 480px;
      width: 100%;
      padding: 2rem;
      position: relative;
      transform: translateY(16px);
      transition: transform .2s ease;
      max-height: 90vh;
      overflow-y: auto;
    }

    .modal-overlay.is-open .modal {
      transform: translateY(0);
    }

    .modal-close {
      position: absolute;
      top: 1rem;
      right: 1rem;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--color-brand-light);
      color: var(--color-brand);
      font-size: 0.875rem;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background .15s ease, color .15s ease;
    }

    .modal-close:hover {
      background: var(--color-dark);
      color: var(--color-neon);
    }

    .modal h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 0.375rem;
    }

    .modal .modal-sub {
      color: var(--color-text-secondary);
      font-size: 0.875rem;
      margin-bottom: 1.5rem;
    }

    .form-group {
      margin-bottom: 1rem;
    }

    .form-group label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--color-text);
      margin-bottom: 0.375rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      height: 48px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-btn);
      background: #F8FAFD;
      padding: 0 1rem;
      font-size: 0.9375rem;
      color: var(--color-text);
      transition: border-color .15s ease, box-shadow .15s ease;
    }

    .form-group textarea {
      height: auto;
      min-height: 90px;
      padding: 0.75rem 1rem;
      resize: vertical;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--color-brand);
      box-shadow: 0 0 0 4px rgba(22, 104, 168, 0.12);
    }

    .form-group select {
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%231E2A36' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 1rem center;
    }

    .modal .btn-energy {
      width: 100%;
      margin-top: 0.5rem;
    }

    .modal-privacy {
      font-size: 0.75rem;
      color: var(--color-text-muted);
      text-align: center;
      margin-top: 0.875rem;
      line-height: 1.5;
    }

    body.no-scroll {
      overflow: hidden;
    }

    /* ======== Responsive ======== */
    @media (max-width: 1024px) {
      .nav-links {
        display: none;
      }

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

      .header-actions .btn-header {
        display: none;
      }

      .media-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }

      .media-row.reverse .media-row-image {
        order: 0;
      }

      .media-row.reverse .media-row-content {
        order: 1;
      }

      .stats-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .scenario-grid {
        grid-template-columns: 1fr;
      }

      .scenario-wide {
        grid-template-columns: 1fr;
      }

      .steps-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
      }

      .step-arrow {
        display: none;
      }

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

    @media (max-width: 768px) {
      .header-inner {
        height: 64px;
      }

      .page-hero .container {
        padding-top: 3rem;
        padding-bottom: 3rem;
      }

      .stats-grid {
        gap: 1rem;
      }

      .stat-item {
        padding: 1.25rem 1rem;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .footer-bottom .container {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .hero-trust {
        gap: 1rem;
      }

      .trust-item {
        font-size: 0.75rem;
      }

      .stats-grid {
        grid-template-columns: 1fr;
      }

      .media-row {
        padding: 0.75rem;
      }

      .media-row-image {
        height: 220px;
      }

      .scenario-card {
        padding: 1.5rem;
      }
    }

/* roulang page: category2 */
:root {
    --bg: #F4F8FB;
    --card: #FFFFFF;
    --primary: #1668A8;
    --primary-dark: #0E4A7B;
    --primary-light: #E8F1F8;
    --neon: #00D4C8;
    --energy: #FF7A2F;
    --text: #1E2A36;
    --text-secondary: #5A6B7C;
    --text-weak: #8A99A8;
    --border: #DCE8F2;
    --dark: #0E1C2B;
    --radius-lg: 16px;
    --radius-md: 8px;
    --shadow-card: 0 4px 20px rgba(14,28,43,0.06);
    --shadow-hover: 0 12px 32px rgba(14,28,43,0.12);
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
  }

  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; transition: color .15s ease; }
  button { font: inherit; cursor: pointer; border: none; background: none; }
  input, select, textarea { font: inherit; }

  .container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 16px;
    padding-right: 16px;
  }

  @media (min-width: 1024px) {
    .container { padding-left: 32px; padding-right: 32px; }
  }

  .section { padding: 56px 0; }

  @media (min-width: 1024px) {
    .section { padding: 96px 0; }
  }

  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 22px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: .95rem;
    line-height: 1.2;
    transition: all .15s ease;
    text-align: center;
    border: 1px solid transparent;
  }

  .btn:focus-visible {
    outline: 3px solid rgba(0,212,200,.55);
    outline-offset: 2px;
  }

  .btn-neon {
    background: var(--neon);
    color: var(--dark);
  }
  .btn-neon:hover {
    box-shadow: 0 0 18px rgba(0,212,200,.4);
    transform: translateY(-1px);
  }
  .btn-neon:active { transform: translateY(1px); }

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

  .btn-outline-light {
    border-color: rgba(0,212,200,.8);
    color: var(--neon);
  }
  .btn-outline-light:hover { background: rgba(0,212,200,.08); }

  .btn-orange {
    background: var(--energy);
    color: #fff;
  }
  .btn-orange:hover { background: #F56C1C; }
  .btn-orange:active { transform: translateY(1px); }

  .btn-block { width: 100%; }

  /* ---------- Header Nav ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--dark);
    border-top: 2px solid var(--neon);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
  }

  @media (max-width: 767px) {
    .header-inner { height: 64px; }
  }

  .logo {
    display: flex;
    align-items: baseline;
    gap: 3px;
    white-space: nowrap;
  }

  .logo-main {
    font-size: 1.35rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: .02em;
  }

  .logo-sub {
    font-size: .78rem;
    font-weight: 600;
    color: var(--neon);
    letter-spacing: .1em;
  }

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

  .nav-links a {
    position: relative;
    color: #A7BCD0;
    font-size: .93rem;
    font-weight: 500;
    padding: 8px 2px;
  }

  .nav-links a:hover { color: var(--neon); }

  .nav-links a.active {
    color: var(--neon);
    text-shadow: 0 0 12px rgba(0,212,200,.45);
  }

  .nav-links a.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: var(--neon);
    box-shadow: 0 0 12px rgba(0,212,200,.8);
  }

  .header-cta {
    font-size: .9rem;
    padding: 10px 18px;
  }

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

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    color: var(--neon);
    font-size: 1.25rem;
    transition: background .15s ease;
  }

  .nav-toggle:hover { background: rgba(0,212,200,.12); }
  .nav-toggle:focus-visible { outline: 2px solid var(--neon); outline-offset: 2px; }

  @media (min-width: 1024px) {
    .nav-toggle { display: none; }
  }

  .mobile-nav {
    display: none;
    flex-direction: column;
    padding: 12px 16px 20px;
    gap: 4px;
    border-top: 1px solid rgba(255,255,255,.08);
    background: var(--dark);
  }

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

  .mobile-nav a {
    color: #A7BCD0;
    padding: 12px 8px;
    border-radius: 8px;
    font-weight: 500;
    transition: all .15s ease;
  }

  .mobile-nav a:hover { color: var(--neon); background: rgba(0,212,200,.08); }

  .mobile-nav a.active {
    color: var(--neon);
    background: rgba(0,212,200,.1);
    box-shadow: inset 3px 0 0 var(--neon);
  }

  /* ---------- Page Hero ---------- */
  .page-hero {
    position: relative;
    color: #fff;
    background:
      linear-gradient(120deg, rgba(14,28,43,.82), rgba(14,28,43,.55)),
      url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
    padding: 72px 0 80px;
    text-align: center;
  }

  @media (min-width: 1024px) {
    .page-hero { padding: 96px 0 108px; }
  }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--neon);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    margin-bottom: 14px;
  }

  .page-hero h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: .01em;
    max-width: 860px;
    margin: 0 auto 18px;
  }

  .page-hero h1 span { color: var(--neon); }

  .hero-desc {
    max-width: 680px;
    margin: 0 auto 30px;
    color: rgba(255,255,255,.86);
    font-size: 1.05rem;
    line-height: 1.8;
  }

  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .hero-note {
    margin-top: 16px;
    font-size: .75rem;
    color: rgba(255,255,255,.62);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    color: rgba(255,255,255,.7);
    font-size: .85rem;
    margin-bottom: 26px;
  }

  .breadcrumb a { color: rgba(255,255,255,.8); }
  .breadcrumb a:hover { color: var(--neon); }
  .breadcrumb .sep { color: rgba(255,255,255,.4); }
  .breadcrumb .current { color: var(--neon); }

  /* ---------- Stats Band ---------- */
  .stats-band {
    background: var(--primary-light);
    border-top: 2px solid var(--primary);
    border-bottom: 1px solid var(--border);
  }

  .stats-band-inner {
    display: flex;
    flex-direction: column;
    gap: 32px;
  }

  @media (min-width: 1024px) {
    .stats-band-inner {
      flex-direction: row;
      align-items: center;
      justify-content: space-between;
      gap: 64px;
    }
  }

  .stats-intro { flex: 0 0 36%; }

  .stats-intro .eyebrow {
    color: var(--primary);
    font-weight: 700;
    font-size: .82rem;
    letter-spacing: .18em;
    text-transform: uppercase;
  }

  .stats-intro h2 {
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text);
    margin: 10px 0 12px;
  }

  .stats-intro p { color: var(--text-secondary); font-size: .95rem; }

  .stats-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 32px;
  }

  @media (min-width: 768px) {
    .stats-grid { grid-template-columns: repeat(4, 1fr); }
  }

  .stat-item { text-align: left; }

  .stat-num {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
  }

  .stat-line {
    width: 32px;
    height: 2px;
    background: var(--neon);
    margin: 10px 0 8px;
    box-shadow: 0 0 8px rgba(0,212,200,.6);
  }

  .stat-label { font-size: .88rem; color: var(--text-secondary); }

  /* ---------- Section Header ---------- */
  .section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }

  .section-head .eyebrow {
    display: block;
    color: var(--primary);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .2em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }

  .section-head h2 {
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 12px;
  }

  .section-head p { color: var(--text-secondary); font-size: .95rem; }

  /* ---------- Training System Cards ---------- */
  .system-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  @media (min-width: 768px) {
    .system-grid { grid-template-columns: repeat(2, 1fr); }
  }

  .system-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all .15s ease;
    display: flex;
    flex-direction: column;
  }

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

  .system-card .card-img {
    height: 180px;
    width: 100%;
    object-fit: cover;
  }

  .system-card .card-body {
    padding: 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .system-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
  }

  .system-card p {
    color: var(--text-secondary);
    font-size: .93rem;
    line-height: 1.7;
    flex: 1;
  }

  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: .9rem;
    margin-top: 16px;
    transition: all .15s ease;
  }

  .card-link:hover { color: var(--neon); gap: 10px; }
  .card-link:hover i { transition: transform .15s ease; }

  /* ---------- Feedback Data Block ---------- */
  .feedback-block {
    background: #fff;
    border-top: 2px solid var(--primary);
    border-bottom: 1px solid var(--border);
  }

  .feedback-inner {
    display: flex;
    flex-direction: column;
    gap: 40px;
  }

  @media (min-width: 1024px) {
    .feedback-inner {
      flex-direction: row;
      align-items: center;
      gap: 72px;
    }
  }

  .feedback-left { flex: 0 0 42%; }

  .feedback-left .eyebrow {
    color: var(--primary);
    font-weight: 700;
    font-size: .8rem;
    letter-spacing: .18em;
    text-transform: uppercase;
  }

  .feedback-left h2 {
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    margin: 12px 0 14px;
  }

  .feedback-left p { color: var(--text-secondary); font-size: .95rem; }

  .feedback-left .btn { margin-top: 24px; }

  .feedback-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  @media (min-width: 640px) {
    .feedback-grid { grid-template-columns: repeat(2, 1fr); }
  }

  .feedback-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    transition: all .15s ease;
  }

  .feedback-item:hover {
    border-color: var(--neon);
    box-shadow: var(--shadow-card);
  }

  .feedback-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 1.05rem;
    margin-bottom: 14px;
    transition: all .15s ease;
  }

  .feedback-item:hover .feedback-icon {
    background: var(--neon);
    color: var(--dark);
  }

  .feedback-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
  .feedback-item p { font-size: .88rem; color: var(--text-secondary); line-height: 1.6; }

  /* ---------- Plan Cards ---------- */
  .plan-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
  }

  @media (min-width: 640px) {
    .plan-grid { grid-template-columns: repeat(2, 1fr); }
  }

  @media (min-width: 1200px) {
    .plan-grid { grid-template-columns: repeat(4, 1fr); }
  }

  .plan-card {
    position: relative;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    padding: 28px 24px;
    transition: all .15s ease;
    overflow: hidden;
  }

  .plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: transparent;
    transition: background .15s ease;
  }

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

  .plan-card:hover::before { background: var(--neon); }

  .plan-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: .75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
  }

  .plan-card h3 { font-size: 1.12rem; font-weight: 700; margin-bottom: 8px; }
  .plan-card .meta { font-size: .82rem; color: var(--text-weak); margin-bottom: 12px; }
  .plan-card p { font-size: .88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 18px; }

  .plan-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
  }

  .plan-features li {
    font-size: .78rem;
    color: var(--text-secondary);
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 999px;
  }

  .plan-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: .9rem;
    transition: all .15s ease;
  }

  .plan-link:hover { color: var(--neon); gap: 10px; }

  /* ---------- FAQ ---------- */
  .faq-wrap {
    max-width: 768px;
    margin: 0 auto;
  }

  .faq-item {
    border-bottom: 1px solid var(--border);
  }

  .faq-item:first-child { border-top: 1px solid var(--border); }

  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 4px;
    font-size: .98rem;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: color .15s ease;
  }

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

  .faq-q:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }

  .faq-icon {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--primary);
    color: var(--primary);
    font-size: .85rem;
    transition: all .2s ease;
    margin-left: 16px;
  }

  .faq-item.open .faq-icon {
    background: var(--neon);
    border-color: var(--neon);
    color: var(--dark);
    transform: rotate(45deg);
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    padding: 0 4px;
    color: var(--text-secondary);
    font-size: .93rem;
    line-height: 1.75;
    transition: max-height .2s ease, padding .2s ease;
  }

  .faq-item.open .faq-a {
    max-height: 240px;
    padding: 0 4px 20px;
  }

  /* ---------- CTA Band ---------- */
  .cta-band {
    position: relative;
    background:
      linear-gradient(110deg, rgba(14,28,43,.9), rgba(20,45,68,.78)),
      url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
    color: #fff;
    border-radius: 24px;
    overflow: hidden;
    padding: 52px 28px;
    text-align: center;
  }

  @media (min-width: 1024px) {
    .cta-band {
      padding: 68px 56px;
      text-align: left;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
    }
  }

  .cta-band::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--neon);
    box-shadow: 0 0 16px rgba(0,212,200,.6);
  }

  .cta-band h2 {
    font-size: clamp(1.4rem, 2.6vw, 2.2rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
  }

  .cta-band h2 span { color: var(--neon); }

  .cta-band p { color: rgba(255,255,255,.8); font-size: .98rem; max-width: 560px; }

  .cta-band .btn { margin-top: 22px; }

  @media (min-width: 1024px) {
    .cta-band .btn { margin-top: 0; flex: 0 0 auto; }
    .cta-band .btn-lg { min-height: 52px; padding: 14px 32px; font-size: 1rem; }
  }

  /* ---------- Modal ---------- */
  .modal-mask {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(14,28,43,.6);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
  }

  .modal-mask.open { display: flex; }

  .modal-panel {
    background: #fff;
    border-radius: 16px;
    max-width: 560px;
    width: 100%;
    padding: 32px;
    position: relative;
    animation: modalIn .2s ease;
    box-shadow: var(--shadow-hover);
    max-height: 92vh;
    overflow-y: auto;
  }

  @keyframes modalIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: all .15s ease;
  }

  .modal-close:hover { background: var(--bg); color: var(--text); }
  .modal-close:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

  .modal-panel h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 8px;
  }

  .modal-panel > p { color: var(--text-secondary); font-size: .9rem; margin-bottom: 24px; }

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

  .form-group label {
    display: block;
    font-size: .86rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
  }

  .form-group label .req { color: var(--energy); }

  .form-control {
    width: 100%;
    height: 48px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #F8FAFD;
    padding: 0 16px;
    color: var(--text);
    font-size: .93rem;
    transition: all .15s ease;
    outline: none;
  }

  .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(22,104,168,.12);
  }

  textarea.form-control {
    height: auto;
    min-height: 100px;
    padding: 12px 16px;
    resize: vertical;
  }

  .form-note {
    margin-top: 14px;
    font-size: .75rem;
    color: var(--text-weak);
    text-align: center;
    line-height: 1.6;
  }

  /* ---------- Footer ---------- */
  .site-footer {
    background: var(--dark);
    color: #A7BCD0;
    margin-top: 0;
  }

  .footer-topline {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon), transparent);
  }

  .footer-main { padding: 56px 0 40px; }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
  }

  @media (min-width: 768px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  }

  @media (min-width: 1024px) {
    .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; }
  }

  .footer-brand .logo { margin-bottom: 16px; display: inline-flex; }

  .footer-brand p {
    font-size: .88rem;
    color: #A7BCD0;
    max-width: 320px;
    line-height: 1.7;
    margin-bottom: 20px;
  }

  .footer-social { display: flex; gap: 12px; }

  .footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
    color: #A7BCD0;
    font-size: .95rem;
    transition: all .15s ease;
  }

  .footer-social a:hover {
    background: var(--neon);
    color: var(--dark);
  }

  .footer-col h4 {
    color: #fff;
    font-size: .95rem;
    font-weight: 700;
    margin-bottom: 16px;
  }

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

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

  .footer-col a { color: #A7BCD0; font-size: .88rem; transition: color .15s ease; }

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

  .footer-contact li { display: flex; align-items: center; gap: 10px; font-size: .86rem; }

  .footer-contact i { color: var(--neon); width: 16px; text-align: center; }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 18px 0;
  }

  .footer-bottom .container {
    display: flex;
    flex-direction: column;
    gap: 6px;
    justify-content: space-between;
    align-items: center;
    font-size: .78rem;
    color: #8A99A8;
    text-align: center;
  }

  @media (min-width: 768px) {
    .footer-bottom .container {
      flex-direction: row;
      text-align: left;
    }
  }

  /* ---------- Misc ---------- */
  a:focus-visible {
    outline: 2px solid var(--neon);
    outline-offset: 2px;
    border-radius: 4px;
  }

  .pill {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: .8rem;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 999px;
  }

  @media (max-width: 767px) {
    .hero-desc { font-size: .95rem; }
    .section-head { margin-bottom: 32px; }
    .plan-card { padding: 24px 20px; }
    .modal-panel { padding: 24px 20px; }
  }

/* roulang page: category3 */
:root {
      --color-bg: #F4F8FB;
      --color-card: #FFFFFF;
      --color-primary: #1668A8;
      --color-primary-dark: #0E4A7B;
      --color-primary-light: #E8F1F8;
      --color-neon: #00D4C8;
      --color-accent: #FF7A2F;
      --color-text: #1E2A36;
      --color-text-sub: #5A6B7C;
      --color-text-weak: #8A99A8;
      --color-border: #DCE8F2;
      --color-dark: #0E1C2B;
      --shadow-sm: 0 4px 20px rgba(14, 28, 43, 0.06);
      --shadow-lg: 0 12px 32px rgba(14, 28, 43, 0.12);
      --radius-lg: 16px;
      --radius-md: 8px;
      --radius-full: 999px;
      --font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-family);
      font-size: 1rem;
      line-height: 1.75;
      color: var(--color-text);
      background: var(--color-bg);
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4 {
      line-height: 1.3;
      font-weight: 700;
    }

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

    a {
      color: var(--color-primary);
      text-decoration: none;
      transition: color .15s ease;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    @media(min-width: 1024px) {
      .container {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    .section {
      padding: 3.5rem 0;
    }

    @media(min-width: 1024px) {
      .section {
        padding: 5.5rem 0;
      }
    }

    .section-head {
      max-width: 720px;
      margin-bottom: 2.5rem;
    }

    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .section-head h2 {
      margin: .75rem 0;
      font-size: clamp(1.4rem, 2.5vw, 2rem);
    }

    .section-head p {
      color: var(--color-text-sub);
    }

    .eyebrow {
      display: inline-block;
      font-size: .75rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--color-primary);
      background: var(--color-primary-light);
      padding: .3rem .9rem;
      border-radius: var(--radius-full);
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: .65rem 1.5rem;
      background: var(--color-neon);
      color: #0E1C2B !important;
      font-weight: 700;
      border-radius: var(--radius-md);
      transition: box-shadow .15s ease, transform .15s ease;
      gap: .5rem;
      font-size: .95rem;
    }

    .btn-primary:hover,
    .btn-primary:focus-visible {
      box-shadow: 0 0 18px rgba(0, 212, 200, 0.4);
      outline: none;
    }

    .btn-primary:active {
      transform: translateY(1px);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: .65rem 1.5rem;
      border: 1px solid var(--color-primary);
      color: var(--color-primary) !important;
      font-weight: 700;
      border-radius: var(--radius-md);
      background: transparent;
      transition: background .15s ease;
      font-size: .95rem;
    }

    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      background: var(--color-primary-light);
      outline: none;
    }

    .btn-accent {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      width: 100%;
      background: var(--color-accent);
      color: #fff !important;
      font-weight: 700;
      border-radius: var(--radius-md);
      transition: background .15s ease, box-shadow .15s ease, transform .15s ease;
      font-size: .95rem;
    }

    .btn-accent:hover,
    .btn-accent:focus-visible {
      background: #F56C1C;
      box-shadow: 0 8px 20px rgba(255, 122, 47, 0.3);
      outline: none;
    }

    .btn-accent:active {
      transform: translateY(1px);
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: var(--color-dark);
      min-height: 72px;
    }

    .header-glow {
      height: 1px;
      background: var(--color-neon);
      box-shadow: 0 0 12px rgba(0, 212, 200, 0.8);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      min-height: 71px;
    }

    .logo {
      display: inline-flex;
      align-items: baseline;
      gap: .35rem;
      font-weight: 800;
      font-size: 1.35rem;
      letter-spacing: .02em;
    }

    .logo-main {
      color: #fff;
    }

    .logo-sub {
      font-size: .75rem;
      font-weight: 600;
      color: var(--color-neon);
      background: rgba(0, 212, 200, 0.12);
      border-radius: var(--radius-full);
      padding: .15rem .5rem;
      letter-spacing: .06em;
    }

    .nav-links {
      display: none;
      align-items: center;
      gap: 1.75rem;
    }

    @media(min-width: 1024px) {
      .nav-links {
        display: flex;
      }
    }

    .nav-links a {
      position: relative;
      font-size: .95rem;
      font-weight: 500;
      color: #A7BCD0;
      padding: .5rem 0;
      transition: color .15s ease, text-shadow .15s ease;
    }

    .nav-links a:hover {
      color: var(--color-neon);
    }

    .nav-links a.active {
      color: var(--color-neon);
      font-weight: 700;
      text-shadow: 0 0 12px rgba(0, 212, 200, 0.35);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      background: var(--color-neon);
      box-shadow: 0 0 10px rgba(0, 212, 200, 0.7);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: .75rem;
    }

    .header-cta {
      display: none;
      align-items: center;
      min-height: 40px;
      padding: .4rem 1.25rem;
      background: var(--color-neon);
      color: #0E1C2B !important;
      font-weight: 700;
      font-size: .9rem;
      border-radius: var(--radius-md);
      transition: box-shadow .15s ease;
    }

    .header-cta:hover,
    .header-cta:focus-visible {
      box-shadow: 0 0 18px rgba(0, 212, 200, 0.4);
      outline: none;
    }

    @media(min-width: 1024px) {
      .header-cta {
        display: inline-flex;
      }
    }

    .hamburger {
      display: flex;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
      border-radius: var(--radius-md);
    }

    .hamburger span {
      width: 22px;
      height: 2px;
      background: #A7BCD0;
      border-radius: 2px;
      transition: background .15s ease;
    }

    .hamburger:hover span {
      background: var(--color-neon);
    }

    @media(min-width: 1024px) {
      .hamburger {
        display: none;
      }
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      background: var(--color-dark);
      border-top: 1px solid rgba(167, 188, 208, 0.2);
      padding: .75rem 1rem 1.25rem;
    }

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

    .mobile-menu a {
      color: #A7BCD0;
      padding: .75rem .25rem;
      font-weight: 500;
      border-bottom: 1px solid rgba(167, 188, 208, 0.12);
    }

    .mobile-menu a:last-child {
      border-bottom: none;
    }

    .mobile-menu a.active {
      color: var(--color-neon);
      font-weight: 700;
      text-shadow: 0 0 10px rgba(0, 212, 200, 0.3);
    }

    /* Page banner */
    .page-banner {
      position: relative;
      background: linear-gradient(120deg, rgba(244, 248, 251, 0.95), rgba(232, 241, 248, 0.85)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      padding: 4rem 0 4.5rem;
      border-bottom: 1px solid var(--color-border);
      overflow: hidden;
    }

    .page-banner::after {
      content: "";
      position: absolute;
      top: -60px;
      right: -60px;
      width: 380px;
      height: 380px;
      background: radial-gradient(circle, rgba(0, 212, 200, 0.18), transparent 70%);
      pointer-events: none;
    }

    .page-banner-content {
      position: relative;
      z-index: 1;
      max-width: 860px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: .5rem;
      font-size: .85rem;
      color: var(--color-text-weak);
      margin-bottom: 1.25rem;
    }

    .breadcrumb a {
      color: var(--color-text-sub);
      transition: color .15s ease;
    }

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

    .breadcrumb i {
      font-size: .6rem;
      color: var(--color-border);
    }

    .page-banner h1 {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1rem;
      color: var(--color-text);
    }

    .page-banner h1 .highlight {
      color: var(--color-primary);
      position: relative;
    }

    .page-banner-desc {
      font-size: 1.05rem;
      color: var(--color-text-sub);
      max-width: 680px;
      margin-bottom: 1.75rem;
      line-height: 1.8;
    }

    .banner-ctas {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 1rem;
    }

    .banner-privacy {
      display: flex;
      align-items: center;
      gap: .45rem;
      font-size: .78rem;
      color: var(--color-text-weak);
    }

    .banner-privacy i {
      color: var(--color-neon);
    }

    /* Timeline */
    .venue-timeline {
      position: relative;
      max-width: 780px;
      margin: 0 auto;
      padding-left: 3.25rem;
    }

    .venue-timeline::before {
      content: "";
      position: absolute;
      left: 1.05rem;
      top: .75rem;
      bottom: .75rem;
      width: 2px;
      background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-neon) 55%, var(--color-border) 100%);
    }

    .timeline-item {
      position: relative;
      margin-bottom: 1.5rem;
    }

    .timeline-icon {
      position: absolute;
      left: -3.5rem;
      top: .35rem;
      width: 2.6rem;
      height: 2.6rem;
      background: var(--color-primary);
      border: 3px solid #fff;
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 0 2px var(--color-neon), 0 4px 12px rgba(22, 104, 168, 0.25);
      font-size: .9rem;
    }

    .timeline-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 1.4rem 1.75rem;
      box-shadow: var(--shadow-sm);
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    }

    .timeline-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-lg);
      border-color: var(--color-neon);
    }

    .step-tag {
      display: inline-block;
      font-size: .72rem;
      font-weight: 700;
      letter-spacing: .08em;
      color: var(--color-primary);
      background: var(--color-primary-light);
      border-radius: var(--radius-full);
      padding: .25rem .75rem;
      margin-bottom: .6rem;
    }

    .timeline-card h3 {
      font-size: 1.1rem;
      margin-bottom: .35rem;
    }

    .timeline-card p {
      color: var(--color-text-sub);
      font-size: .925rem;
      line-height: 1.65;
    }

    /* Venue type cards */
    .venue-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }

    @media(min-width: 768px) {
      .venue-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    .venue-card {
      overflow: hidden;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
      display: flex;
      flex-direction: column;
    }

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

    .venue-card-media {
      height: 180px;
      overflow: hidden;
      border-top-left-radius: var(--radius-lg);
      border-top-right-radius: var(--radius-lg);
    }

    .venue-card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .25s ease;
    }

    .venue-card:hover .venue-card-media img {
      transform: scale(1.04);
    }

    .venue-card-body {
      padding: 1.4rem 1.5rem 1.5rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .venue-type {
      display: inline-block;
      font-size: .75rem;
      font-weight: 700;
      color: var(--color-primary);
      background: var(--color-primary-light);
      border-radius: var(--radius-full);
      padding: .25rem .75rem;
      margin-bottom: .75rem;
      align-self: flex-start;
    }

    .venue-card-body h3 {
      font-size: 1.1rem;
      margin-bottom: .45rem;
    }

    .venue-card-body p {
      color: var(--color-text-sub);
      font-size: .9rem;
      line-height: 1.65;
      margin-bottom: 1rem;
    }

    .venue-card-link {
      display: inline-flex;
      align-items: center;
      gap: .35rem;
      color: var(--color-primary);
      font-weight: 600;
      font-size: .9rem;
      margin-top: auto;
    }

    .venue-card-link i {
      transition: transform .15s ease;
    }

    .venue-card-link:hover {
      color: var(--color-neon);
    }

    .venue-card-link:hover i {
      transform: translateX(4px);
    }

    /* Stats */
    .stats-section {
      background: var(--color-primary-light);
      border-top: 2px solid var(--color-primary);
      border-bottom: 1px solid var(--color-border);
    }

    .stats-wrap {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2.5rem;
    }

    @media(min-width: 1024px) {
      .stats-wrap {
        grid-template-columns: 1fr 1.3fr;
        gap: 3rem;
        align-items: center;
      }
    }

    .stats-intro h2 {
      margin: .75rem 0;
    }

    .stats-intro p {
      color: var(--color-text-sub);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem 1.25rem;
    }

    @media(min-width: 640px) {
      .stats-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    @media(min-width: 1024px) {
      .stats-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    .stat-item {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 1.25rem 1.25rem 1.1rem;
      box-shadow: var(--shadow-sm);
      transition: transform .15s ease, box-shadow .15s ease;
      text-align: center;
    }

    .stat-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-lg);
    }

    .stat-num {
      display: block;
      font-size: clamp(1.8rem, 3vw, 2.4rem);
      font-weight: 800;
      color: var(--color-primary);
      line-height: 1.2;
      letter-spacing: -.01em;
    }

    .stat-num::after {
      content: "";
      display: block;
      width: 36px;
      height: 3px;
      background: var(--color-neon);
      border-radius: 3px;
      margin: .5rem auto .6rem;
    }

    .stat-label {
      font-size: .85rem;
      color: var(--color-text-sub);
    }

    /* Scenarios */
    .scenario-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1rem;
    }

    @media(min-width: 768px) {
      .scenario-list {
        grid-template-columns: 1fr 1fr;
      }
    }

    .scenario-item {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 1.25rem 1.4rem;
      box-shadow: var(--shadow-sm);
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    }

    .scenario-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-lg);
      border-color: var(--color-neon);
    }

    .scenario-icon {
      width: 46px;
      height: 46px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--color-primary-light);
      color: var(--color-primary);
      border-radius: var(--radius-md);
      font-size: 1.2rem;
    }

    .scenario-content {
      flex: 1;
    }

    .scenario-content h3 {
      font-size: 1.05rem;
      margin-bottom: .25rem;
    }

    .scenario-content p {
      color: var(--color-text-sub);
      font-size: .875rem;
      line-height: 1.6;
    }

    /* FAQ */
    .faq-list {
      max-width: 768px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      background: #fff;
      margin-bottom: .75rem;
      overflow: hidden;
      transition: border-color .15s ease, box-shadow .15s ease;
    }

    .faq-item.open {
      border-color: var(--color-neon);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      text-align: left;
      padding: 1rem 1.25rem;
      font-size: .975rem;
      font-weight: 600;
      color: var(--color-text);
      background: transparent;
      transition: color .15s ease;
    }

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

    .faq-question span {
      flex: 1;
    }

    .faq-question i {
      color: var(--color-text-weak);
      transition: transform .2s ease, color .2s ease;
      font-size: .85rem;
      flex-shrink: 0;
    }

    .faq-item.open .faq-question {
      color: var(--color-primary);
    }

    .faq-item.open .faq-question i {
      transform: rotate(45deg);
      color: var(--color-neon);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .2s ease;
    }

    .faq-answer p {
      padding: 0 1.25rem 1rem;
      color: var(--color-text-sub);
      font-size: .92rem;
      line-height: 1.65;
    }

    /* CTA section */
    .cta-section {
      background: var(--color-dark);
      position: relative;
      padding: 4rem 0;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: var(--color-neon);
      box-shadow: 0 0 14px rgba(0, 212, 200, 0.7);
    }

    .cta-section::after {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      right: -100px;
      top: -100px;
      background: radial-gradient(circle, rgba(0, 212, 200, 0.18), transparent 70%);
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: .85rem;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.5rem, 3vw, 2.2rem);
    }

    .cta-inner p {
      color: #A7BCD0;
      max-width: 540px;
      font-size: .95rem;
    }

    .cta-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      margin-top: .5rem;
    }

    .cta-note {
      font-size: .75rem;
      color: #8A99A8;
    }

    /* Footer */
    .site-footer {
      background: var(--color-dark);
      color: #A7BCD0;
    }

    .footer-topline {
      height: 1px;
      background: var(--color-neon);
      box-shadow: 0 0 12px rgba(0, 212, 200, 0.8);
    }

    .footer-main {
      padding: 3.5rem 0 2.5rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2rem;
    }

    @media(min-width: 768px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media(min-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
        gap: 3rem;
      }
    }

    .footer-brand .logo {
      font-size: 1.5rem;
    }

    .footer-brand p {
      color: #A7BCD0;
      margin: 1rem 0 1.25rem;
      max-width: 320px;
      font-size: .9rem;
      line-height: 1.7;
    }

    .footer-social {
      display: flex;
      gap: .75rem;
    }

    .footer-social a {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, 0.06);
      color: #A7BCD0;
      font-size: 1rem;
      transition: background .15s ease, color .15s ease, box-shadow .15s ease;
    }

    .footer-social a:hover {
      background: rgba(0, 212, 200, 0.12);
      color: var(--color-neon);
      box-shadow: 0 0 12px rgba(0, 212, 200, 0.3);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 1rem;
    }

    .footer-col ul {
      display: grid;
      gap: .55rem;
    }

    .footer-col a {
      color: #A7BCD0;
      font-size: .9rem;
      transition: color .15s ease;
    }

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

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: .6rem;
      font-size: .875rem;
      color: #A7BCD0;
      line-height: 1.6;
    }

    .footer-contact i {
      color: var(--color-neon);
      width: 18px;
      text-align: center;
      flex-shrink: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(167, 188, 208, 0.15);
      padding: 1.25rem 0;
    }

    .footer-bottom .container {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: .5rem;
      font-size: .8rem;
      color: #8A99A8;
    }

    /* Modal */
    .modal-overlay {
      position: fixed;
      inset: 0;
      z-index: 100;
      background: rgba(14, 28, 43, 0.6);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }

    .modal-overlay.open {
      display: flex;
    }

    .modal-box {
      width: 100%;
      max-width: 520px;
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 2rem;
      position: relative;
      animation: modalIn .2s ease;
      max-height: calc(100vh - 2rem);
      overflow-y: auto;
    }

    @keyframes modalIn {
      from {
        opacity: 0;
        transform: translateY(14px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .modal-close {
      position: absolute;
      top: 1rem;
      right: 1rem;
      width: 36px;
      height: 36px;
      border-radius: var(--radius-md);
      background: var(--color-bg);
      color: var(--color-text-sub);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background .15s ease, color .15s ease;
    }

    .modal-close:hover {
      background: var(--color-primary-light);
      color: var(--color-primary);
    }

    .modal-box h3 {
      font-size: 1.35rem;
      margin-bottom: .4rem;
    }

    .modal-sub {
      color: var(--color-text-sub);
      font-size: .9rem;
      margin-bottom: 1.5rem;
    }

    .contact-form label {
      display: block;
      font-size: .875rem;
      font-weight: 600;
      color: var(--color-text);
      margin-bottom: 1rem;
    }

    .contact-form input,
    .contact-form select,
    .contact-form textarea {
      width: 100%;
      height: 48px;
      margin-top: .35rem;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      background: #F8FAFD;
      padding: 0 .9rem;
      font-size: .925rem;
      font-family: inherit;
      color: var(--color-text);
      transition: border-color .15s ease, box-shadow .15s ease;
    }

    .contact-form textarea {
      height: auto;
      padding: .75rem .9rem;
      resize: vertical;
    }

    .contact-form input:focus,
    .contact-form select:focus,
    .contact-form textarea:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(22, 104, 168, 0.15);
    }

    .privacy-note {
      margin-top: .75rem;
      font-size: .75rem;
      text-align: center;
      color: var(--color-text-weak);
    }

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

    @media(max-width: 520px) {
      .venue-timeline {
        padding-left: 2.6rem;
      }
      .timeline-icon {
        left: -2.8rem;
        width: 2.2rem;
        height: 2.2rem;
        font-size: .8rem;
      }
      .timeline-card {
        padding: 1.1rem 1.25rem;
      }
      .venue-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: .75rem;
      }
      .stat-item {
        padding: .9rem .75rem;
      }
      .scenario-list {
        grid-template-columns: 1fr;
      }
      .page-banner {
        padding: 2.75rem 0 3rem;
      }
      .banner-ctas .btn-primary,
      .banner-ctas .btn-secondary {
        width: 100%;
      }
    }