/* roulang page: index */
:root {
  --primary: #1B3A6B;
  --primary-dark: #102544;
  --primary-light: #2C5290;
  --accent: #FF6B00;
  --accent-dark: #E05E00;
  --dark: #0B1626;
  --dark-2: #11213A;
  --bg: #F4F6FA;
  --bg-light: #EAF0F6;
  --white: #FFFFFF;
  --text: #1E2A38;
  --text-secondary: #5A6B7C;
  --text-light: #8A9BAB;
  --border: #E1E6EC;
  --footer-text: #B8C4D0;
  --footer-dim: #6B7A8C;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.12);
  --shadow-nav: 0 1px 8px rgba(15, 23, 42, 0.08);
  --shadow-hero: 0 20px 60px rgba(0, 0, 0, 0.25);
  --container-max: 1200px;
  --section-space: 96px;
  --section-space-mobile: 64px;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease; }
a:hover { color: var(--primary-light); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 16px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-space) 0; }
.section-subtitle { font-size: 15px; color: var(--text-secondary); text-align: center; margin-top: 8px; }
.bg-light { background: var(--bg); }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 56px; }
.section-tag { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 1px; color: var(--accent); text-transform: uppercase; margin-bottom: 8px; }
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.35; color: var(--text); margin-bottom: 12px; letter-spacing: -0.5px; }
.section-head .section-subtitle { font-size: 16px; color: var(--text-secondary); margin-top: 12px; line-height: 1.7; }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 32px; border-radius: var(--radius-sm); font-size: 16px; font-weight: 700; line-height: 1; gap: 8px; border: 2px solid transparent; transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease; white-space: nowrap; }
.btn-primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(27, 58, 107, 0.25); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255, 107, 0, 0.3); }
.btn-accent:active { transform: translateY(0); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255, 255, 255, 0.5); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--white); color: var(--white); transform: translateY(-2px); }
.btn-white { background: var(--white); color: var(--primary); border-color: var(--white); }
.btn-white:hover { background: #F0F4FA; color: var(--primary); border-color: #F0F4FA; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2); }
.btn-lg { height: 54px; padding: 0 40px; font-size: 17px; }
.site-header { position: fixed; top: 0; left: 0; right: 0; height: 76px; background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(225, 230, 236, 0.7); z-index: 1000; transition: box-shadow 0.3s ease, background 0.3s ease; }
.site-header.scrolled { box-shadow: var(--shadow-nav); background: rgba(255, 255, 255, 0.98); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; white-space: nowrap; }
.logo:hover { color: var(--primary); }
.logo-mark { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 8px; background: linear-gradient(135deg, var(--accent), #FF8A3D); color: var(--white); font-size: 18px; font-weight: 900; box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3); }
.main-nav { display: flex; align-items: center; gap: 30px; }
.nav-link { position: relative; font-size: 16px; font-weight: 500; color: var(--text); padding: 8px 2px; transition: color 0.2s ease; }
.nav-link::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left center; transition: transform 0.3s ease; }
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.active::after { transform: scaleX(1); }
.nav-cta { height: 42px; padding: 0 24px; font-size: 15px; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 42px; height: 42px; border-radius: 8px; padding: 8px; z-index: 1001; }
.nav-toggle span { display: block; width: 100%; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hero { position: relative; padding: 180px 0 100px; background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 70%, var(--primary-light) 100%); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.12; z-index: 0; }
.hero::after { content: ""; position: absolute; top: -80px; right: -80px; width: 360px; height: 360px; border-radius: 50%; background: rgba(255, 107, 0, 0.15); filter: blur(100px); z-index: 0; }
.hero-deco-line { position: absolute; width: 220px; height: 2px; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3)); top: 120px; right: 60px; transform: rotate(-12deg); z-index: 0; }
.hero-deco-line-2 { position: absolute; width: 320px; height: 1px; background: linear-gradient(90deg, transparent, rgba(255, 107, 0, 0.4)); top: 240px; right: 20px; transform: rotate(18deg); z-index: 0; }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 72px; align-items: center; }
.hero-content { color: var(--white); }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; letter-spacing: 2px; color: rgba(255, 255, 255, 0.7); background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.15); padding: 6px 16px; border-radius: var(--radius-pill); margin-bottom: 24px; }
.hero-eyebrow i { color: var(--accent); }
.hero h1 { font-size: 44px; font-weight: 800; line-height: 1.25; margin-bottom: 20px; letter-spacing: -0.5px; }
.hero h1 .brand-highlight { color: var(--accent); position: relative; }
.hero h1 .brand-highlight::after { content: ""; position: absolute; left: 0; bottom: -4px; width: 100%; height: 4px; background: linear-gradient(90deg, var(--accent), rgba(255, 107, 0, 0.2)); border-radius: 4px; }
.hero-subtitle { font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, 0.85); max-width: 480px; margin-bottom: 36px; font-weight: 400; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-badges .badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: rgba(255, 255, 255, 0.9); background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.12); padding: 6px 16px; border-radius: var(--radius-pill); }
.hero-badges .badge i { color: var(--accent); font-size: 12px; }
.hero-image { position: relative; }
.hero-image-inner { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-hero); transform: perspective(1000px) rotateY(-4deg) rotateX(2deg); transition: transform 0.6s ease, box-shadow 0.6s ease; background: var(--white); }
.hero-image-inner:hover { transform: perspective(1000px) rotateY(0deg) rotateX(0deg); box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35); }
.hero-image-inner img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.hero-image-deco { position: absolute; top: -14px; right: -14px; width: 100px; height: 100px; border-top: 4px solid var(--accent); border-right: 4px solid var(--accent); border-radius: 0 16px 0 0; z-index: 2; pointer-events: none; }
.hero-image-card-tag { position: absolute; bottom: 20px; left: 20px; z-index: 2; background: rgba(11, 22, 38, 0.85); color: var(--white); font-size: 13px; font-weight: 600; padding: 8px 18px; border-radius: var(--radius-pill); backdrop-filter: blur(4px); display: flex; align-items: center; gap: 8px; }
.hero-image-card-tag i { color: var(--accent); }
.pain-points { background: var(--white); position: relative; }
.cards-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card { background: var(--white); border-radius: var(--radius-lg); padding: 32px 28px; box-shadow: var(--shadow-card); transition: box-shadow 0.3s ease, transform 0.3s ease; border: 1px solid rgba(225, 230, 236, 0.4); }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.pain-icon { display: inline-flex; align-items: center; justify-content: center; width: 64px; height: 64px; border-radius: 14px; background: var(--bg-light); color: var(--primary); font-size: 24px; margin-bottom: 20px; transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease; }
.pain-card:hover .pain-icon { background: var(--primary); color: var(--white); transform: scale(1.05); }
.pain-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.pain-card p { font-size: 15px; line-height: 1.7; color: var(--text-secondary); }
.solution-section { background: var(--bg); }
.solution-row { display: grid; grid-template-columns: 0.8fr 1.2fr 1fr; gap: 48px; align-items: center; margin-bottom: 72px; }
.solution-row:last-child { margin-bottom: 0; }
.solution-row.reverse .solution-img { order: -1; }
.solution-step { display: flex; flex-direction: column; align-items: center; }
.step-num { font-size: 72px; font-weight: 900; color: var(--primary); line-height: 1; letter-spacing: -4px; font-style: italic; opacity: 0.15; }
.solution-row.reverse .step-num { color: var(--accent); opacity: 0.18; }
.step-line { width: 2px; height: 90px; background: linear-gradient(180deg, var(--primary), rgba(27, 58, 107, 0.1)); margin-top: 12px; border-radius: 2px; }
.solution-text h3 { font-size: 24px; font-weight: 800; color: var(--text); margin-bottom: 14px; letter-spacing: -0.3px; }
.solution-text p { font-size: 16px; line-height: 1.8; color: var(--text-secondary); max-width: 440px; }
.solution-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.solution-img:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.solution-img img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.stats-section { background: var(--white); border-top: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.stat-item { text-align: center; padding: 20px 16px; position: relative; }
.stat-item:not(:last-child)::after { content: ""; position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 1px; height: 56px; background: var(--border); }
.stat-num { font-size: 48px; font-weight: 900; color: var(--primary); line-height: 1.2; letter-spacing: -2px; font-style: italic; }
.stat-label { font-size: 15px; color: var(--text-secondary); margin-top: 10px; font-weight: 500; }
.testimonials-section { background: var(--bg); }
.testimonials-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 900px; margin: 0 auto; }
.testimonial-card { background: var(--white); border-radius: var(--radius-lg); padding: 36px 32px; box-shadow: var(--shadow-card); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.testimonial-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.testimonial-stars { color: #F59E0B; font-size: 16px; margin-bottom: 18px; display: flex; gap: 4px; }
.testimonial-stars i { letter-spacing: 2px; }
.testimonial-text { font-size: 16px; line-height: 1.8; color: var(--text); font-style: italic; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar { display: flex; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: var(--white); font-size: 18px; font-weight: 700; }
.testimonial-author:nth-child(2) .author-avatar { background: var(--accent); }
.author-name { font-size: 15px; font-weight: 700; color: var(--text); }
.author-role { font-size: 13px; color: var(--text-light); margin-top: 2px; }
.cta-section { background: var(--white); }
.cta-box { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); border-radius: var(--radius-lg); padding: 72px 56px; text-align: center; position: relative; overflow: hidden; }
.cta-box::before { content: ""; position: absolute; top: -80px; right: -60px; width: 220px; height: 220px; border-radius: 50%; background: rgba(255, 107, 0, 0.3); filter: blur(60px); }
.cta-box::after { content: ""; position: absolute; bottom: -40px; left: 20px; width: 140px; height: 140px; border-radius: 50%; background: rgba(255, 255, 255, 0.06); }
.cta-box h2 { font-size: 32px; font-weight: 800; color: var(--white); margin-bottom: 16px; position: relative; z-index: 1; letter-spacing: -0.5px; }
.cta-box p { font-size: 16px; color: rgba(255, 255, 255, 0.8); margin-bottom: 36px; position: relative; z-index: 1; }
.cta-box .btn { position: relative; z-index: 1; }
.news-section { background: var(--white); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card { display: flex; flex-direction: column; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); border: 1px solid rgba(225, 230, 236, 0.4); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.news-thumb { position: relative; overflow: hidden; height: 180px; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.news-card:hover .news-thumb img { transform: scale(1.03); }
.news-cat { position: absolute; top: 14px; left: 14px; background: var(--accent); color: var(--white); font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: var(--radius-pill); letter-spacing: 0.5px; box-shadow: 0 4px 10px rgba(255, 107, 0, 0.3); }
.news-content { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.news-content h3 { font-size: 17px; font-weight: 700; line-height: 1.5; color: var(--text); margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color 0.2s ease; }
.news-card:hover .news-content h3 { color: var(--primary); }
.news-content p { font-size: 14px; line-height: 1.7; color: var(--text-light); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; font-size: 13px; color: var(--text-light); }
.news-meta i { margin-right: 4px; }
.read-more { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; transition: color 0.2s ease, transform 0.2s ease; }
.news-card:hover .read-more { color: var(--accent); transform: translateX(3px); }
.news-empty { grid-column: 1 / -1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; min-height: 240px; background: var(--bg); border: 2px dashed var(--border); border-radius: var(--radius-lg); color: var(--text-light); }
.news-empty .empty-icon { font-size: 42px; margin-bottom: 16px; color: var(--text-light); opacity: 0.6; }
.news-empty h3 { font-size: 18px; font-weight: 700; color: var(--text-secondary); margin-bottom: 6px; }
.news-empty p { font-size: 15px; }
.faq-section { background: var(--bg); }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 12px; transition: box-shadow 0.3s ease, border-color 0.3s ease; overflow: hidden; }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-card); }
.faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text); text-align: left; transition: background 0.2s ease, color 0.2s ease; }
.faq-question:hover { background: var(--bg-light); color: var(--primary); }
.faq-question i { font-size: 14px; color: var(--text-light); transition: transform 0.3s ease, color 0.3s ease; flex-shrink: 0; margin-left: 12px; }
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.35s ease; }
.faq-item.active .faq-answer { grid-template-rows: 1fr; }
.faq-answer-inner { overflow: hidden; }
.faq-answer-inner p { padding: 0 24px 22px; font-size: 15px; line-height: 1.8; color: var(--text-secondary); }
.site-footer { background: var(--dark); color: var(--footer-text); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.footer-brand .footer-logo .logo-mark { width: 30px; height: 30px; font-size: 15px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: var(--footer-dim); max-width: 260px; }
.footer-links h4 { font-size: 15px; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.footer-links a { display: block; font-size: 14px; color: var(--footer-text); padding: 6px 0; line-height: 1.6; transition: color 0.2s ease, padding-left 0.2s ease; }
.footer-links a:hover { color: var(--white); padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 24px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-bottom p { font-size: 13px; color: var(--footer-dim); }
.footer-bottom a { color: var(--footer-dim); font-size: 13px; }
.footer-bottom a:hover { color: var(--white); }
@media (max-width: 1023px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-image-inner { max-width: 560px; }
  .hero { padding: 160px 0 80px; }
  .solution-row { grid-template-columns: 0.6fr 1.4fr; gap: 32px; }
  .solution-row.reverse .solution-img { order: 0; }
  .solution-row .solution-img { order: 1; grid-column: 1 / -1; max-width: 520px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .stat-item:nth-child(2)::after { display: none; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .section { padding: var(--section-space-mobile) 0; }
  .section-head h2 { font-size: 26px; }
  .hero { padding: 140px 0 64px; }
  .hero h1 { font-size: 30px; }
  .hero-subtitle { font-size: 15px; }
  .hero-buttons .btn { width: 100%; }
  .cards-grid-3 { grid-template-columns: 1fr; }
  .card { padding: 28px 24px; }
  .solution-row { grid-template-columns: 1fr; gap: 24px; }
  .solution-step { display: none; }
  .solution-text h3 { font-size: 20px; }
  .solution-text p { font-size: 15px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
  .stat-item::after { display: none !important; }
  .stat-num { font-size: 36px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 56px 24px; }
  .cta-box h2 { font-size: 24px; }
  .cta-box .btn { width: 100%; }
  .news-grid { grid-template-columns: 1fr; }
  .news-thumb { height: 200px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .nav-toggle { display: flex; }
  .main-nav { display: flex; position: fixed; top: 76px; left: 0; right: 0; background: var(--white); flex-direction: column; align-items: stretch; gap: 8px; padding: 24px; box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08); transform: translateY(-120%); transition: transform 0.35s ease; z-index: 999; border-radius: 0 0 16px 16px; }
  .main-nav.open { transform: translateY(0); }
  .main-nav .nav-link { display: block; padding: 14px 16px; border-radius: var(--radius-sm); font-size: 16px; width: 100%; }
  .main-nav .nav-link:hover { background: var(--bg-light); }
  .main-nav .nav-link::after { display: none; }
  .main-nav .nav-cta { margin-top: 12px; width: 100%; height: 48px; }
  .hero-deco-line, .hero-deco-line-2 { display: none; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo { font-size: 18px; }
  .hero h1 { font-size: 26px; }
  .section-head { margin-bottom: 40px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stats-section .stat-item { padding: 12px 0; }
  .stat-item:not(:last-child)::after { display: none; }
  .news-content h3 { font-size: 16px; }
}

/* roulang page: article */
:root {
  --primary: #1B4FAA;
  --primary-dark: #163F87;
  --primary-light: #EFF4FB;
  --accent: #12B76A;
  --accent-dark: #0FA35C;
  --warning: #F59E0B;
  --bg: #F5F8FC;
  --bg-deep: #EAF1F8;
  --white: #FFFFFF;
  --text: #0F172A;
  --text-sub: #475569;
  --text-weak: #94A3B8;
  --border: #E2E8F0;
  --footer-bg: #0F1D33;
  --footer-text: #CBD5E1;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 2px rgba(15,23,42,.04), 0 6px 16px rgba(15,23,42,.06);
  --shadow-hover: 0 2px 4px rgba(15,23,42,.06), 0 12px 24px rgba(15,23,42,.10);
  --shadow-nav: 0 1px 8px rgba(15,23,42,.06);
  --space-section: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

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

i.fas, i.far, i.fab {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
}

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

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(27,79,170,.25);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}

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

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(18,183,106,.25);
}

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

.btn-white:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0,0,0,.18);
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-nav);
  height: 76px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .5px;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--text);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
}

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

.nav-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 2px;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: width .25s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.nav-cta {
  height: 44px;
  padding: 0 22px;
  font-size: 15px;
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  gap: 5px;
  padding: 0;
  border-radius: var(--radius-sm);
}

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .25s ease;
}

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

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

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

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
  padding: 32px 0 16px;
}

.breadcrumb a {
  color: var(--text-weak);
  transition: color .2s ease;
}

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

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

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

/* ===== 文章头部 ===== */
.article-main {
  padding-bottom: var(--space-section);
}

.article-head {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 0 8px;
  text-align: center;
}

.article-head h1 {
  font-size: 42px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .5px;
}

.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-weak);
}

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

.article-meta i {
  color: var(--primary);
  font-size: 13px;
}

/* ===== 文章布局 ===== */
.article-layout {
  max-width: 880px;
  margin: 32px auto 0;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px;
}

.article-cover {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
  position: relative;
  box-shadow: 0 2px 8px rgba(15,23,42,.08);
}

.article-cover img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  transition: transform .4s ease;
}

.article-cover:hover img {
  transform: scale(1.015);
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.article-content p {
  margin-bottom: 16px;
}

.article-content h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  line-height: 1.35;
  color: var(--text);
}

.article-content h3 {
  font-size: 22px;
  font-weight: 600;
  margin: 32px 0 14px;
  color: var(--text);
  line-height: 1.4;
}

.article-content ul,
.article-content ol {
  margin: 16px 0 20px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
  color: var(--text-sub);
  font-style: normal;
}

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

.article-content a {
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

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

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

.article-content pre {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  font-size: 14px;
  margin: 24px 0;
  line-height: 1.7;
}

.article-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.article-content strong {
  font-weight: 600;
  color: var(--text);
}

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

.article-content th,
.article-content td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
}

.article-content th {
  background: var(--bg);
  font-weight: 600;
}

/* ===== 标签 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: var(--bg);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--text-sub);
  border: 1px solid var(--border);
  transition: all .2s ease;
}

.tag:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== 相关推荐 ===== */
.related-section {
  max-width: 880px;
  margin: 48px auto 0;
}

.related-section > h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.related-card {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  transition: all .25s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--border);
  transform: translateY(-2px);
}

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

.related-img {
  width: 160px;
  height: 120px;
  flex-shrink: 0;
  overflow: hidden;
}

.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.related-card:hover .related-img img {
  transform: scale(1.05);
}

.related-info {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.related-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  transition: color .2s ease;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.related-time {
  font-size: 13px;
  color: var(--text-weak);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ===== 返回入口 ===== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: all .2s ease;
}

.back-link i {
  transition: transform .2s ease;
}

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

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

/* ===== CTA ===== */
.cta-section {
  position: relative;
  max-width: 880px;
  margin: 64px auto 0;
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.cta-section::before,
.cta-section::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  pointer-events: none;
}

.cta-section::before {
  width: 180px;
  height: 180px;
  top: -80px;
  right: -40px;
}

.cta-section::after {
  width: 260px;
  height: 260px;
  bottom: -130px;
  left: -60px;
}

.cta-section h2 {
  position: relative;
  z-index: 2;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-section p {
  position: relative;
  z-index: 2;
  font-size: 16px;
  color: #DCE4F5;
  margin-bottom: 28px;
}

.cta-section .btn {
  position: relative;
  z-index: 2;
  height: 52px;
  padding: 0 36px;
  font-size: 17px;
}

/* ===== 未找到 ===== */
.not-found {
  max-width: 640px;
  margin: 80px auto;
  text-align: center;
}

.not-found-box {
  background: var(--white);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 64px 40px;
  box-shadow: var(--shadow-card);
}

.not-found-box i {
  font-size: 48px;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-block;
}

.not-found-box h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.not-found-box p {
  color: var(--text-sub);
  margin-bottom: 28px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 64px 0 0;
  margin-top: var(--space-section);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

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

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--footer-text);
  max-width: 280px;
}

.footer-links h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: var(--footer-text);
  margin-bottom: 10px;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 13px;
  color: #64748B;
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  :root {
    --space-section: 80px;
  }

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

  .article-head h1 {
    font-size: 36px;
  }
}

@media (max-width: 767px) {
  :root {
    --space-section: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    padding: 16px 24px 24px;
    box-shadow: 0 12px 24px rgba(15,23,42,.12);
    display: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
  }

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

  .main-nav .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 16px;
  }

  .main-nav .nav-link::after {
    display: none;
  }

  .main-nav .nav-cta {
    margin: 16px 0 0;
    width: 100%;
    height: 48px;
  }

  .article-head {
    text-align: left;
  }

  .article-head h1 {
    font-size: 30px;
  }

  .article-meta {
    justify-content: flex-start;
    gap: 16px;
    flex-wrap: wrap;
  }

  .article-layout {
    padding: 24px 20px;
    margin-top: 24px;
  }

  .article-content h2 {
    font-size: 24px;
  }

  .article-content h3 {
    font-size: 20px;
  }

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

  .related-card {
    flex-direction: row;
  }

  .related-img {
    width: 120px;
    height: 100px;
  }

  .cta-section {
    padding: 40px 24px;
  }

  .cta-section h2 {
    font-size: 26px;
  }

  .cta-section p {
    font-size: 14px;
  }

  .cta-section .btn {
    width: 100%;
    padding: 0 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .logo {
    font-size: 18px;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
    font-size: 16px;
    border-radius: 8px;
  }

  .breadcrumb {
    font-size: 13px;
    padding-top: 24px;
  }

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

  .article-layout {
    padding: 20px 16px;
  }

  .article-content {
    font-size: 15px;
    line-height: 1.75;
  }

  .related-card {
    flex-direction: column;
    align-items: stretch;
  }

  .related-img {
    width: 100%;
    height: 140px;
  }

  .cta-section {
    padding: 32px 20px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #1B4FAA;
  --primary-dark: #163F87;
  --primary-light: #EEF4FF;
  --accent: #12B76A;
  --accent-dark: #0FA35C;
  --amber: #F59E0B;
  --bg-light: #F5F8FC;
  --bg-blue: #EAF1F8;
  --bg-white: #FFFFFF;
  --text-main: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --dark-bg: #0F1D33;
  --dark-text: #CBD5E1;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 2px rgba(15,23,42,0.04), 0 6px 16px rgba(15,23,42,0.06);
  --shadow-hover: 0 2px 4px rgba(15,23,42,0.06), 0 12px 24px rgba(15,23,42,0.10);
  --shadow-nav: 0 1px 8px rgba(15,23,42,0.06);
  --transition: 0.25s ease;
  --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
button { font-family: inherit; border: none; cursor: pointer; background: none; }
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  z-index: 1000;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-nav);
}
.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.logo .logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(27, 79, 170, 0.25);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav .nav-link {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 500;
  position: relative;
  transition: background var(--transition), color var(--transition);
}
.main-nav .nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.main-nav .nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.main-nav .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-cta {
  margin-left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  transition: all var(--transition);
  line-height: 1;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(27, 79, 170, 0.2);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(18, 183, 106, 0.2);
}
.btn-accent:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-outline {
  background: #fff;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: #F0F4FF;
  color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.btn-lg { height: 52px; padding: 0 40px; font-size: 17px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: 180px 0 90px;
  background: linear-gradient(135deg, rgba(11, 27, 51, 0.88) 0%, rgba(27, 79, 170, 0.78) 65%, rgba(27, 79, 170, 0.55) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -140px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(18, 183, 106, 0.08);
  pointer-events: none;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-tag i { color: var(--accent); }
.hero-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero-title .highlight {
  color: var(--accent);
  position: relative;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}
.hero-badges {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-badges span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}
.hero-badges i {
  color: var(--accent);
  font-size: 16px;
}

/* ===== Section base ===== */
.section {
  padding: 96px 0;
}
.section-bg-light {
  background: var(--bg-light);
}
.section-bg-blue {
  background: var(--bg-blue);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-head .section-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 16px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Highlight Cards ===== */
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.highlight-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.highlight-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.highlight-card:hover::before { opacity: 1; }
.highlight-card .card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 12px;
  margin-bottom: 20px;
  font-size: 24px;
  color: var(--primary);
}
.highlight-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}
.highlight-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== Scenario ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.scenario-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.scenario-card .scenario-img {
  height: 200px;
  overflow: hidden;
}
.scenario-card .scenario-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.scenario-card:hover .scenario-img img {
  transform: scale(1.03);
}
.scenario-card .scenario-body {
  padding: 24px 24px 28px;
}
.scenario-card .scenario-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}
.scenario-card .scenario-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== Process Timeline ===== */
.section-dark {
  background: var(--dark-bg);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section-dark::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 280px;
  background: radial-gradient(circle, rgba(27, 79, 170, 0.3) 0%, transparent 70%);
  pointer-events: none;
}
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head p { color: rgba(255, 255, 255, 0.65); }
.section-dark .section-head .section-label { color: var(--accent); }
.process-wrap {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
}
.process-wrap::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 220px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
  opacity: 0.5;
}
.process-item {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 28px 0;
  position: relative;
}
.process-item .process-num {
  width: 72px;
  height: 72px;
  background: rgba(27, 79, 170, 0.2);
  border: 1px solid rgba(27, 79, 170, 0.6);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(4px);
}
.process-item .process-info {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 20px 28px;
  backdrop-filter: blur(4px);
}
.process-item .process-info h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}
.process-item .process-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

/* ===== Coverage ===== */
.coverage-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.coverage-text h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 16px;
}
.coverage-text h2 .highlight { color: var(--primary); }
.coverage-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}
.coverage-text .coverage-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}
.coverage-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.coverage-tags .tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.coverage-tags .tag i {
  color: var(--primary);
  font-size: 14px;
}
.coverage-tags .tag:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(27, 79, 170, 0.12);
}
.coverage-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.coverage-visual img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}
.coverage-visual .visual-caption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(11, 27, 51, 0.7);
  backdrop-filter: blur(6px);
  border-radius: 12px;
  padding: 12px 18px;
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.coverage-visual .visual-caption i { color: var(--accent); }

/* ===== FAQ ===== */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-card);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background var(--transition);
}
.faq-question:hover {
  background: #F8FAFC;
}
.faq-question .faq-icon {
  color: var(--primary);
  font-size: 18px;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 24px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 22px;
}
.faq-answer p {
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* ===== CTA ===== */
.cta-band {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #274F94 100%);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}
.cta-band::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: 10%;
  width: 260px;
  height: 260px;
  background: rgba(18, 183, 106, 0.1);
  border-radius: 50%;
}
.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.35;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-inner .btn-white {
  font-size: 17px;
  height: 52px;
  padding: 0 44px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-bg);
  color: var(--dark-text);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .footer-logo .logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 18px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(203, 213, 225, 0.7);
  max-width: 280px;
}
.footer-links h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  color: rgba(203, 213, 225, 0.7);
  font-size: 14px;
  padding: 5px 0;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0;
}
.footer-bottom p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .coverage-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .process-wrap::before { left: 36px; }
  .process-item {
    gap: 24px;
  }
  .process-item .process-num {
    width: 64px;
    height: 64px;
    font-size: 22px;
  }
}
@media (max-width: 767px) {
  .section { padding: 64px 0; }
  .site-header { height: 64px; }
  .header-inner { height: 64px; }
  .logo { font-size: 18px; }
  .logo .logo-mark { width: 32px; height: 32px; font-size: 16px; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    gap: 8px;
    display: none;
    border-bottom: 1px solid var(--border);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav .nav-link {
    padding: 14px 16px;
    font-size: 16px;
  }
  .main-nav .nav-link.active::after {
    display: none;
  }
  .main-nav .nav-link.active {
    background: var(--primary-light);
    border-radius: 8px;
  }
  .nav-cta {
    margin-left: 0;
    margin-top: 12px;
    width: 100%;
    height: 48px;
  }
  .nav-toggle {
    display: flex;
  }
  .page-hero {
    padding: 140px 0 64px;
  }
  .hero-title {
    font-size: 30px;
    line-height: 1.3;
  }
  .hero-sub {
    font-size: 15px;
    margin-bottom: 28px;
  }
  .hero-btns {
    flex-direction: column;
    gap: 12px;
    padding: 0 24px;
  }
  .hero-btns .btn {
    width: 100%;
  }
  .hero-badges {
    gap: 16px;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .highlight-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .scenario-card .scenario-img {
    height: 180px;
  }
  .process-wrap::before { display: none; }
  .process-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .process-item .process-num {
    width: 56px;
    height: 56px;
    font-size: 20px;
  }
  .process-item .process-info {
    padding: 16px 20px;
  }
  .coverage-visual img {
    height: 220px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .cta-inner h2 {
    font-size: 26px;
  }
  .cta-inner .btn-white {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
      --primary: #1B4FAA;
      --primary-dark: #163F87;
      --primary-light: #EEF4FF;
      --accent: #12B76A;
      --accent-hover: #0FA35C;
      --warning: #F59E0B;
      --bg: #F5F8FC;
      --bg-soft: #EAF1F8;
      --white: #FFFFFF;
      --text: #0F172A;
      --text-secondary: #475569;
      --text-muted: #94A3B8;
      --border: #E2E8F0;
      --footer-bg: #0F1D33;
      --footer-text: #CBD5E1;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-pill: 999px;
      --shadow-card: 0 1px 2px rgba(15,23,42,0.04), 0 6px 16px rgba(15,23,42,0.06);
      --shadow-hover: 0 2px 4px rgba(15,23,42,0.06), 0 12px 24px rgba(15,23,42,0.10);
      --shadow-nav: 0 1px 8px rgba(15,23,42,0.06);
      --space-section: 96px;
      --container: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background: var(--white);
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
    }

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

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

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }

    .section {
      padding: var(--space-section) 0;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 500;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
      letter-spacing: .5px;
    }

    .section-title {
      font-size: 32px;
      line-height: 1.35;
      font-weight: 700;
      letter-spacing: .5px;
      margin-bottom: 24px;
      color: var(--text);
    }

    .section-desc {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-secondary);
      max-width: 720px;
      margin-bottom: 48px;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 76px;
      background: rgba(255,255,255,.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      z-index: 100;
      box-shadow: var(--shadow-nav);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: .5px;
      white-space: nowrap;
    }

    .logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 36px;
      height: 100%;
    }

    .nav-link {
      position: relative;
      font-size: 16px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 8px 0;
      letter-spacing: .3px;
    }

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

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

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--primary);
      border-radius: var(--radius-pill);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 44px;
      padding: 0 24px;
      background: var(--accent);
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      box-shadow: 0 2px 6px rgba(18,183,106,.28);
      white-space: nowrap;
      transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
    }

    .nav-cta:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(18,183,106,.34);
      color: #fff;
    }

    .nav-cta:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
      border-radius: var(--radius-sm);
    }

    .nav-toggle span {
      width: 22px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: transform .3s ease, opacity .3s ease;
    }

    .nav-toggle.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-toggle.active span:nth-child(2) {
      opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }

    @media (max-width: 767px) {
      .nav-toggle {
        display: flex;
      }

      .main-nav {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        height: auto;
        background: var(--white);
        padding: 16px 24px 24px;
        gap: 4px;
        box-shadow: var(--shadow-nav);
        border-top: 1px solid var(--border);
        display: none;
      }

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

      .main-nav .nav-link {
        padding: 14px 0;
        font-size: 17px;
        border-bottom: 1px solid #f1f5f9;
      }

      .main-nav .nav-link.active::after {
        display: none;
      }

      .main-nav .nav-link.active {
        background: var(--primary-light);
        padding-left: 16px;
        border-radius: var(--radius-sm);
        border-left: 3px solid var(--primary);
      }

      .main-nav .nav-cta {
        margin-top: 16px;
        justify-content: center;
        height: 50px;
        width: 100%;
      }
    }

    /* ===== Page Hero ===== */
    .page-hero {
      position: relative;
      padding: 160px 0 80px;
      background: linear-gradient(135deg, rgba(240,245,251,.95) 0%, rgba(255,255,255,.88) 50%, rgba(234,241,248,.9) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      overflow: hidden;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      width: 480px;
      height: 480px;
      border-radius: 50%;
      background: rgba(27,79,170,.04);
      top: -180px;
      right: -120px;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      display: flex;
      gap: 48px;
      align-items: center;
    }

    .hero-content {
      flex: 1;
      max-width: 640px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(18,183,106,.12);
      color: var(--accent-hover);
      font-size: 14px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      margin-bottom: 20px;
    }

    .hero-content h1 {
      font-size: 42px;
      line-height: 1.3;
      font-weight: 700;
      letter-spacing: .5px;
      margin-bottom: 16px;
      color: var(--text);
    }

    .hero-content h1 span {
      color: var(--primary);
      position: relative;
    }

    .hero-content h1 span::after {
      content: '';
      position: absolute;
      bottom: 4px;
      left: 0;
      width: 100%;
      height: 6px;
      background: rgba(27,79,170,.12);
      z-index: -1;
      border-radius: 3px;
    }

    .hero-content p {
      font-size: 17px;
      line-height: 1.85;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 28px;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: background .25s ease, transform .25s ease, box-shadow .25s ease, border-color .25s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 2px 10px rgba(27,79,170,.28);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 4px 16px rgba(27,79,170,.36);
      color: #fff;
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 2px 10px rgba(18,183,106,.28);
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 16px rgba(18,183,106,.36);
      color: #fff;
    }

    .btn-outline {
      background: var(--white);
      color: var(--primary);
      border: 1px solid var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
      transform: translateY(-1px);
    }

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

    .btn-white {
      background: #fff;
      color: var(--primary);
      height: 52px;
      padding: 0 32px;
      border-radius: var(--radius-sm);
      font-size: 17px;
      font-weight: 600;
      box-shadow: 0 2px 12px rgba(0,0,0,.1);
    }

    .btn-white:hover {
      background: var(--primary-light);
      transform: translateY(-1px);
      box-shadow: 0 4px 20px rgba(0,0,0,.14);
      color: var(--primary-dark);
    }

    .hero-badges {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-secondary);
      background: rgba(255,255,255,.8);
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      border: 1px solid var(--border);
    }

    .hero-badge i {
      color: var(--accent);
      font-size: 13px;
    }

    .hero-visual {
      flex: 1;
      max-width: 480px;
      display: none;
    }

    .hero-visual .visual-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-hover);
      border: 4px solid var(--white);
      background: #fff;
    }

    .hero-visual .visual-wrap img {
      width: 100%;
      height: auto;
    }

    /* ===== Info Strip ===== */
    .info-strip {
      background: var(--white);
      padding: 0;
      border-bottom: 1px solid var(--border);
    }

    .strip-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
      padding: 28px 0;
    }

    .strip-item {
      display: flex;
      align-items: center;
      gap: 16px;
      justify-content: center;
      padding: 0 24px;
    }

    .strip-item + .strip-item {
      border-left: 1px solid var(--border);
    }

    .strip-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 18px;
      flex-shrink: 0;
    }

    .strip-text {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.5;
    }

    .strip-text strong {
      display: block;
      color: var(--text);
      font-weight: 600;
      font-size: 16px;
    }

    /* ===== Advantages ===== */
    .advantages {
      background: var(--bg);
    }

    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .advantage-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      box-shadow: var(--shadow-card);
      border: 1px solid rgba(226,232,240,.5);
      transition: box-shadow .3s ease, transform .3s ease;
    }

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

    .adv-icon {
      width: 64px;
      height: 64px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
      background: var(--primary-light);
      color: var(--primary);
    }

    .advantage-card:nth-child(2) .adv-icon {
      background: rgba(18,183,106,.1);
      color: var(--accent);
    }

    .advantage-card:nth-child(3) .adv-icon {
      background: rgba(245,158,11,.1);
      color: var(--warning);
    }

    .advantage-card:nth-child(4) .adv-icon {
      background: rgba(27,79,170,.08);
      color: var(--primary);
    }

    .advantage-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text);
    }

    .advantage-card p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-secondary);
    }

    /* ===== Process ===== */
    .process {
      background: var(--white);
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .process-steps::before {
      content: '';
      position: absolute;
      top: 40px;
      left: 60px;
      right: 60px;
      height: 2px;
      background: linear-gradient(to right, var(--primary) 0%, var(--primary-light) 100%);
      opacity: .5;
    }

    .step-item {
      position: relative;
      text-align: center;
      padding: 0 8px;
    }

    .step-num {
      width: 80px;
      height: 80px;
      border-radius: 24px;
      margin: 0 auto 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      font-weight: 700;
      color: var(--primary);
      background: var(--white);
      border: 2px solid var(--primary);
      box-shadow: 0 4px 16px rgba(27,79,170,.14);
      position: relative;
      z-index: 1;
    }

    .step-item:nth-child(2) .step-num {
      border-color: var(--accent);
      color: var(--accent);
      box-shadow: 0 4px 16px rgba(18,183,106,.14);
    }

    .step-item:nth-child(3) .step-num {
      border-color: var(--warning);
      color: var(--warning);
      box-shadow: 0 4px 16px rgba(245,158,11,.14);
    }

    .step-item:nth-child(4) .step-num {
      border-color: var(--primary);
      color: var(--primary);
      box-shadow: 0 4px 16px rgba(27,79,170,.14);
    }

    .step-item h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text);
    }

    .step-item p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

    /* ===== Scenarios ===== */
    .scenarios {
      background: var(--bg);
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .scenario-text .section-title {
      margin-bottom: 16px;
    }

    .scenario-list {
      list-style: none;
      margin-top: 24px;
    }

    .scenario-list li {
      display: flex;
      gap: 16px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--border);
    }

    .scenario-list li:last-child {
      border-bottom: none;
    }

    .scenario-list .sc-icon {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(18,183,106,.1);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
      margin-top: 4px;
    }

    .scenario-list .sc-text strong {
      display: block;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 2px;
    }

    .scenario-list .sc-text span {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

    .scenario-image {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-hover);
    }

    .scenario-image img {
      width: 100%;
      height: auto;
      aspect-ratio: 4/3;
      object-fit: cover;
    }

    /* ===== Benefits ===== */
    .benefits {
      background: var(--white);
    }

    .benefit-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .benefit-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      position: relative;
      transition: box-shadow .3s ease, transform .3s ease;
    }

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

    .benefit-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .5px;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
      background: var(--primary-light);
      color: var(--primary);
    }

    .benefit-card:nth-child(2) .benefit-tag {
      background: rgba(18,183,106,.1);
      color: var(--accent);
    }

    .benefit-card:nth-child(3) .benefit-tag {
      background: rgba(245,158,11,.1);
      color: #B45309;
    }

    .benefit-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text);
    }

    .benefit-card ul {
      list-style: none;
      padding: 0;
    }

    .benefit-card ul li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 15px;
      color: var(--text-secondary);
      padding: 6px 0;
    }

    .benefit-card ul li i {
      color: var(--accent);
      font-size: 13px;
    }

    /* ===== Security ===== */
    .security {
      background: var(--bg);
    }

    .security-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .security-item {
      display: flex;
      gap: 20px;
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-card);
      align-items: flex-start;
    }

    .security-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }

    .security-item h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 4px;
      color: var(--text);
    }

    .security-item p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
    }

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

    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: box-shadow .3s ease;
    }

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

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      text-align: left;
      transition: background .25s ease, color .25s ease;
    }

    .faq-question:hover {
      background: #F8FAFC;
      color: var(--primary);
    }

    .faq-question i {
      font-size: 16px;
      color: var(--text-muted);
      transition: transform .3s ease, color .3s ease;
      flex-shrink: 0;
    }

    .faq-item.open .faq-question {
      color: var(--primary);
      background: #F8FAFC;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease, padding .35s ease;
      padding: 0 24px;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px;
    }

    .faq-answer p {
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-secondary);
      border-top: 1px solid var(--border);
      padding-top: 12px;
    }

    /* ===== CTA ===== */
    .cta-section {
      position: relative;
      padding: 88px 0;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: rgba(255,255,255,.05);
      top: -140px;
      right: -80px;
    }

    .cta-section::after {
      content: '';
      position: absolute;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: rgba(255,255,255,.04);
      bottom: -120px;
      left: 80px;
    }

    .cta-inner {
      position: relative;
      text-align: center;
      z-index: 1;
    }

    .cta-inner h2 {
      font-size: 34px;
      line-height: 1.35;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: .5px;
    }

    .cta-inner p {
      font-size: 17px;
      line-height: 1.7;
      color: #DCE4F5;
      max-width: 560px;
      margin: 0 auto 36px;
    }

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

    .cta-actions .btn-outline {
      background: transparent;
      border-color: rgba(255,255,255,.5);
      color: #fff;
    }

    .cta-actions .btn-outline:hover {
      background: rgba(255,255,255,.1);
      border-color: #fff;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--footer-bg);
      padding-top: 64px;
      font-size: 14px;
      color: var(--footer-text);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--footer-text);
      opacity: .8;
      max-width: 320px;
    }

    .footer-links h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
      letter-spacing: .5px;
    }

    .footer-links a {
      display: block;
      font-size: 14px;
      line-height: 2.4;
      color: var(--footer-text);
      transition: color .25s ease, padding-left .25s ease;
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 6px;
    }

    .footer-bottom {
      padding: 24px 0 30px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      color: #64748B;
      font-size: 14px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      .main-nav {
        gap: 20px;
      }
      .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 24px;
      }
      .process-steps::before {
        display: none;
      }
      .scenario-grid {
        gap: 40px;
      }
      .benefit-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .security-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
      .hero-visual {
        display: none;
      }
    }

    @media (max-width: 767px) {
      :root {
        --space-section: 64px;
      }

      .section-title {
        font-size: 26px;
      }

      .page-hero {
        padding: 120px 0 56px;
      }

      .hero-content h1 {
        font-size: 30px;
      }

      .hero-content p {
        font-size: 15px;
      }

      .hero-actions .btn {
        width: calc(50% - 8px);
        padding: 0 16px;
      }

      .strip-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 24px 0;
      }

      .strip-item {
        justify-content: flex-start;
      }

      .strip-item + .strip-item {
        border-left: none;
        border-top: 1px solid var(--border);
        padding-top: 16px;
      }

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

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

      .scenario-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .scenario-image img {
        aspect-ratio: 16/10;
      }

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

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

      .cta-inner h2 {
        font-size: 26px;
      }

      .cta-actions .btn {
        width: calc(50% - 8px);
        padding: 0 16px;
      }

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

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