/* ============================================
   RCFL 官网公共样式
   所有页面引用此文件 + 页面私有样式
   ============================================ */

/* CSS Variables */
:root {
  --primary: #0052A3;
  --primary-light: #E8F1FB;
  --primary-dark: #003A7A;
  --accent: #00A79D;
  --accent-light: #E0F7F6;
  --ai-purple: #7C3AED;
  --ai-purple-light: #F3F0FF;
  --orange: #F5A623;
  --text-dark: #1A202C;
  --text-body: #4A5568;
  --text-light: #718096;
  --white: #FFFFFF;
  --bg-gray: #F7F9FC;
  --bg-light: #EEF2F7;
  --border: #E2E8F0;
  --shadow: 0 4px 20px rgba(0,82,163,0.10);
  --shadow-lg: 0 8px 40px rgba(0,82,163,0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

/* Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif; color: var(--text-dark); line-height: 1.6; -webkit-font-smoothing: antialiased; background: var(--white); }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-gray); }
.section-title { text-align: center; margin-bottom: 56px; }
.section-title h2 { font-size: 36px; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
.section-title p { font-size: 18px; color: var(--text-light); }
.section-title.white h2 { color: var(--white); }
.section-title.white p { color: rgba(255,255,255,0.65); }

/* Navigation */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.97); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: var(--transition); }
.nav.scrolled { box-shadow: var(--shadow); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--primary); }
.nav-logo-icon { height: 40px; width: auto; max-height: 40px; display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 15px; color: var(--text-body); font-weight: 500; transition: var(--transition); position: relative; padding: 4px 0; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-links a::after { content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px; background: var(--primary); transform: scaleX(0); transition: var(--transition); border-radius: 2px; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-mobile { display: none; cursor: pointer; padding: 8px; background: none; border: none; }
.nav-mobile span { display: block; width: 22px; height: 2px; background: var(--text-dark); border-radius: 2px; margin: 5px 0; transition: var(--transition); }

/* Mobile Menu */
.mobile-menu { display: none; position: fixed; top: 68px; left: 0; right: 0; background: var(--white); border-top: 1px solid var(--border); box-shadow: var(--shadow); z-index: 999; padding: 20px 24px; }
.mobile-menu.open { display: block; }
.mobile-menu a { display: flex; align-items: center; gap: 8px; padding: 12px 0; font-size: 16px; color: var(--text-body); border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a.active { color: var(--primary); font-weight: 600; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 22px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; cursor: pointer; border: none; transition: var(--transition); text-align: center; justify-content: center; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,82,163,0.3); }
.btn-white { background: var(--white); color: var(--primary); }
.btn-white:hover { background: var(--primary-light); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-outline-primary { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline-primary:hover { background: var(--primary); color: var(--white); }
.btn-accent { background: var(--accent); color: var(--white); }
.btn-accent:hover { background: #00897B; }
.btn-ai { background: var(--ai-purple); color: var(--white); }
.btn-ai:hover { background: #6D28D9; }
.btn-orange { background: var(--orange); color: var(--white); }
.btn-orange:hover { background: #E09000; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn-ghost { background: transparent; color: var(--text-body); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* Hero */
.hero { min-height: 100vh; background: linear-gradient(135deg, #003A7A 0%, #0052A3 40%, #0077CC 100%); display: flex; align-items: center; justify-content: center; padding-top: 68px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.hero-content { text-align: center; color: var(--white); position: relative; z-index: 1; padding: 60px 24px; width: 100%; max-width: 1200px; margin: 0 auto; }

/* Hero - Sub pages (shorter) */
.hero-short { min-height: 400px; }
.hero-short .hero-content { padding: 40px 24px; }
.hero-page-icon { font-size: 56px; margin-bottom: 20px; }
.hero-badges { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-badge2 { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); padding: 6px 16px; border-radius: 100px; font-size: 14px; color: rgba(255,255,255,0.9); }

/* Hero Path */
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); padding: 6px 18px; border-radius: 100px; font-size: 14px; color: rgba(255,255,255,0.9); margin-bottom: 28px; }
.hero-badge-dot { width: 8px; height: 8px; background: #4ADE80; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.hero h1 { font-size: clamp(32px, 6vw, 64px); font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.hero h1 .highlight { color: #60CAFF; }
.hero h2 { font-size: clamp(28px, 5vw, 52px); font-weight: 800; line-height: 1.15; margin-bottom: 16px; }
.hero h2 .highlight { color: #60CAFF; }
.hero-sub { font-size: clamp(16px, 2.5vw, 20px); opacity: 0.85; max-width: 680px; margin: 0 auto 40px; line-height: 1.7; }
.hero-path { display: flex; justify-content: center; gap: 0; margin: 48px 0 40px; flex-wrap: wrap; }
.hero-path-step { display: flex; align-items: center; gap: 12px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); padding: 10px 20px; border-radius: 100px; color: rgba(255,255,255,0.9); font-size: 14px; font-weight: 500; }
.hero-path-step-num { width: 24px; height: 24px; background: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: white; flex-shrink: 0; }
.hero-path-arrow { color: rgba(255,255,255,0.4); font-size: 20px; margin: 0 4px; align-self: center; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span { opacity: 0.4; }

/* Cards */
.card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: var(--transition); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card-link { display: block; border: 2px solid transparent; cursor: pointer; }
.card-link:hover { border-color: var(--primary); }

/* Module Cards (Home) */
.modules-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.module-card { background: var(--white); border-radius: var(--radius); padding: 32px 28px; box-shadow: var(--shadow); transition: var(--transition); border: 2px solid transparent; cursor: pointer; position: relative; overflow: hidden; }
.module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.module-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.module-card.gov::before { background: var(--primary); }
.module-card.job::before { background: var(--accent); }
.module-card.eval::before { background: var(--orange); }
.module-card.train::before { background: var(--ai-purple); }
.module-card:hover.gov::before { background: var(--primary); }
.module-card:hover.job::before { background: var(--accent); }
.module-card:hover.eval::before { background: var(--orange); }
.module-card:hover.train::before { background: var(--ai-purple); }
.module-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 18px; }
.module-card.gov .module-icon { background: var(--primary-light); }
.module-card.job .module-icon { background: var(--accent-light); }
.module-card.eval .module-icon { background: #FFF4E0; }
.module-card.train .module-icon { background: var(--ai-purple-light); }
.module-tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 100px; margin-bottom: 12px; }
.module-card.gov .module-tag { background: var(--primary-light); color: var(--primary); }
.module-card.job .module-tag { background: var(--accent-light); color: #00897B; }
.module-card.eval .module-tag { background: #FFF4E0; color: #E65100; }
.module-card.train .module-tag { background: var(--ai-purple-light); color: var(--ai-purple); }
.module-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text-dark); }
.module-card p { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 20px; }
.module-card .btn-card { font-size: 14px; padding: 8px 18px; display: inline-flex; align-items: center; gap: 6px; border-radius: var(--radius-sm); font-weight: 600; transition: var(--transition); cursor: pointer; }
.module-card.gov .btn-card { background: var(--primary-light); color: var(--primary); }
.module-card.job .btn-card { background: var(--accent-light); color: #00897B; }
.module-card.eval .btn-card { background: #FFF4E0; color: #E65100; }
.module-card.train .btn-card { background: var(--ai-purple-light); color: var(--ai-purple); }
.module-card:hover .btn-card { color: var(--white); }
.module-card:hover.gov .btn-card { background: var(--primary); }
.module-card:hover.job .btn-card { background: var(--accent); }
.module-card:hover.eval .btn-card { background: var(--orange); }
.module-card:hover.train .btn-card { background: var(--ai-purple); }

/* Company About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; color: var(--text-dark); }
.about-text h2 span { color: var(--primary); }
.about-text > p { font-size: 16px; color: var(--text-body); line-height: 1.8; margin-bottom: 24px; }
.about-values { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-value { display: flex; align-items: flex-start; gap: 12px; padding: 14px; background: var(--bg-gray); border-radius: var(--radius-sm); }
.about-value-icon { width: 36px; height: 36px; background: var(--primary-light); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.about-value h4 { font-size: 14px; font-weight: 600; color: var(--text-dark); margin-bottom: 2px; }
.about-value p { font-size: 12px; color: var(--text-light); }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-stat { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: var(--white); border-radius: var(--radius); padding: 24px 20px; text-align: center; }
.about-stat-num { font-size: 32px; font-weight: 800; margin-bottom: 4px; }
.about-stat-label { font-size: 13px; opacity: 0.8; }

/* Sub-page Hero (dark gradient) */
.hero-dark { background: linear-gradient(135deg, #003A7A, #0052A3); }
.hero-accent { background: linear-gradient(135deg, #004D40, #00796B); }
.hero-ai { background: linear-gradient(135deg, #1E1B4B, #312E81); }
.hero-orange { background: linear-gradient(135deg, #7C2D12, #C2410C); }

/* Section Headers (internal) */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 32px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.section-header p { font-size: 16px; color: var(--text-light); max-width: 640px; margin: 0 auto; }

/* Gov Section */
.gov-advantages { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 48px; }
.advantage-item { display: flex; align-items: flex-start; gap: 14px; padding: 20px; background: var(--bg-gray); border-radius: var(--radius); transition: var(--transition); }
.advantage-item:hover { background: var(--primary-light); }
.advantage-icon { width: 44px; height: 44px; background: var(--white); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 22px; box-shadow: var(--shadow); }
.advantage-text h4 { font-size: 15px; font-weight: 600; color: var(--text-dark); margin-bottom: 4px; }
.advantage-text p { font-size: 13px; color: var(--text-light); }
.gov-categories { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.category-chip { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: var(--primary-light); border-radius: var(--radius-sm); font-size: 14px; font-weight: 500; color: var(--primary); transition: var(--transition); cursor: default; }
.category-chip:hover { background: var(--primary); color: var(--white); }
.category-chip .cat-icon { font-size: 18px; }

/* Job Section */
.job-problem { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin-bottom: 48px; }
.problem-card { background: var(--white); border-radius: var(--radius); padding: 24px; border-left: 4px solid #EF4444; box-shadow: var(--shadow); }
.problem-card h4 { font-size: 15px; font-weight: 600; color: #DC2626; margin-bottom: 8px; }
.problem-card p { font-size: 13px; color: var(--text-body); }
.job-advantages-card { background: linear-gradient(135deg, #004D40, #00796B); border-radius: var(--radius); padding: 32px; margin-bottom: 48px; color: var(--white); }
.job-advantages-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.job-advantages-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.job-adv-item { background: rgba(255,255,255,0.1); border-radius: var(--radius-sm); padding: 16px; text-align: center; }
.job-adv-item .adv-num { font-size: 28px; font-weight: 800; color: #80CBC4; margin-bottom: 4px; }
.job-adv-item p { font-size: 14px; color: rgba(255,255,255,0.85); }
.job-flow { margin-bottom: 48px; }
.job-flow h3 { font-size: 22px; font-weight: 700; text-align: center; margin-bottom: 28px; color: var(--text-dark); }
.job-flow-steps { display: flex; justify-content: center; gap: 0; flex-wrap: wrap; }
.flow-step { display: flex; flex-direction: column; align-items: center; gap: 10px; min-width: 120px; }
.flow-step-num { width: 36px; height: 36px; background: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; color: white; }
.flow-step-label { font-size: 13px; color: var(--text-body); font-weight: 500; text-align: center; }
.flow-arrow { display: flex; align-items: center; color: var(--accent); font-size: 20px; align-self: flex-start; margin-top: 10px; }

/* Products */
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 48px; }
.product-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.product-card-header { padding: 20px 24px; color: var(--white); }
.product-card-header.accent { background: linear-gradient(135deg, #004D40, #00796B); }
.product-card-header.primary { background: linear-gradient(135deg, #003A7A, #0052A3); }
.product-card-header.dark { background: linear-gradient(135deg, #1E1B4B, #312E81); }
.product-card-header h4 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.product-card-header p { font-size: 13px; opacity: 0.85; }
.product-card-body { padding: 20px 24px; }
.product-card-body ul { display: flex; flex-direction: column; gap: 10px; }
.product-card-body li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--text-body); line-height: 1.6; }
.product-card-body li::before { content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.product-price { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.product-price .price { font-size: 22px; font-weight: 800; color: var(--accent); }
.product-price .price-note { font-size: 12px; color: var(--text-light); }
.product-tag { margin-top: 16px; padding: 8px 12px; border-radius: 6px; font-size: 12px; font-weight: 600; text-align: center; }
.product-tag.accent { background: var(--accent-light); color: var(--accent); }
.product-tag.primary { background: var(--primary-light); color: var(--primary); }
.product-tag.dark { background: #EEEAFB; color: #5B21B6; }

/* Mentors */
.mentors-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.mentor-card { background: var(--bg-gray); border-radius: var(--radius); padding: 28px 24px; text-align: center; transition: var(--transition); border: 2px solid transparent; }
.mentor-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.mentor-avatar { width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: 700; color: white; }
.mentor-card h4 { font-size: 17px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.mentor-title { font-size: 13px; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.mentor-card > p { font-size: 13px; color: var(--text-body); line-height: 1.7; }
.mentor-tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }
.mentor-tag { font-size: 11px; padding: 2px 8px; background: var(--accent-light); color: #00695C; border-radius: 100px; }

/* Case Studies */
.cases-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.case-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.case-card-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.case-avatar { width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; color: white; flex-shrink: 0; }
.case-card-header h4 { font-size: 16px; font-weight: 700; color: var(--text-dark); }
.case-card-header p { font-size: 13px; color: var(--text-light); }
.case-card > p { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 16px; }
.case-result { display: flex; gap: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.case-result-item { flex: 1; text-align: center; }
.case-result-num { font-size: 22px; font-weight: 800; color: var(--accent); }
.case-result-label { font-size: 12px; color: var(--text-light); margin-top: 2px; }

/* AI Section */
.ai-section { padding: 80px 0; background: linear-gradient(135deg, #1E1B4B, #312E81); color: var(--white); }
.ai-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-bottom: 48px; }
.ai-card { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius); padding: 28px; transition: var(--transition); }
.ai-card:hover { background: rgba(255,255,255,0.14); transform: translateY(-3px); }
.ai-card-icon { font-size: 36px; margin-bottom: 16px; }
.ai-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.ai-card p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.7; }
.ai-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; text-align: center; }
.ai-stat { background: rgba(255,255,255,0.06); border-radius: var(--radius); padding: 28px; }
.ai-stat-num { font-size: 36px; font-weight: 800; color: #60CAFF; margin-bottom: 4px; }
.ai-stat-label { font-size: 14px; color: rgba(255,255,255,0.65); }

/* Evaluation */
.eval-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; max-width: 700px; margin: 0 auto 40px; }
.eval-card { background: var(--bg-gray); border-radius: var(--radius); padding: 24px; text-align: center; transition: var(--transition); }
.eval-card:hover { background: var(--primary-light); transform: translateY(-2px); }
.eval-card-icon { font-size: 36px; margin-bottom: 12px; }
.eval-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: var(--text-dark); }
.eval-card p { font-size: 13px; color: var(--text-light); }

/* CTA */
.cta-section { padding: 80px 0; background: var(--white); }
.cta-section h2 { font-size: 34px; font-weight: 700; text-align: center; color: var(--text-dark); margin-bottom: 12px; }
.cta-section > .container > p { text-align: center; color: var(--text-light); font-size: 17px; margin-bottom: 48px; }
.cta-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.cta-card { background: var(--bg-gray); border-radius: var(--radius); padding: 32px 28px; text-align: center; border: 2px solid transparent; transition: var(--transition); }
.cta-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.cta-card-icon { font-size: 40px; margin-bottom: 16px; }
.cta-card h3 { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.cta-card p { font-size: 14px; color: var(--text-body); margin-bottom: 20px; line-height: 1.6; }

/* Brand Trio */
.brands-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 12px; }
.brand-card { background: var(--white); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); transition: var(--transition); text-decoration: none; color: inherit; display: block; border-top: 4px solid transparent; }
.brand-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.brand-zh { border-top-color: var(--accent); }
.brand-zh:hover { border-top-color: var(--accent); }
.brand-dao { border-top-color: var(--primary); }
.brand-dao:hover { border-top-color: var(--primary-dark); }
.brand-zhi { border-top-color: var(--orange); }
.brand-zhi:hover { border-top-color: var(--orange); }
.brand-logo { display: inline-block; padding: 10px 18px; background: var(--primary); color: white; border-radius: 8px; font-size: 20px; font-weight: 800; margin-bottom: 16px; letter-spacing: 2px; }
.brand-zh .brand-logo { background: var(--accent); }
.brand-dao .brand-logo { background: var(--primary); }
.brand-zhi .brand-logo { background: var(--orange); }
.brand-card h3 { font-size: 24px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.brand-role { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 16px; padding: 4px 10px; background: var(--primary-light); border-radius: 100px; display: inline-block; }
.brand-card p { font-size: 14px; color: var(--text-body); line-height: 1.8; margin-bottom: 20px; }
.brand-circles { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.brand-circles span { font-size: 12px; padding: 4px 12px; background: var(--bg-gray); color: var(--text-light); border-radius: 100px; }
@media (max-width: 900px) { .brands-grid { grid-template-columns: 1fr; } }

/* Service Targets */
.targets-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 12px; }
.target-card { background: var(--white); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); text-align: center; transition: var(--transition); }
.target-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.target-icon { width: 64px; height: 64px; background: var(--primary-light); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 32px; margin: 0 auto 16px; }
.target-card h3 { font-size: 20px; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
.target-card p { font-size: 14px; color: var(--text-body); line-height: 1.8; }
.target-list { display: flex; flex-direction: column; gap: 8px; text-align: left; margin-top: 12px; padding-top: 16px; border-top: 1px solid var(--bg-gray); }
.target-list-item { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--text-body); }
.target-list-item::before { content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0; }
@media (max-width: 900px) { .targets-grid { grid-template-columns: 1fr; } }

/* Enterprise Services */
.enterprise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 12px; }
.enterprise-card { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); transition: var(--transition); border-top: 3px solid var(--primary); }
.enterprise-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-top-color: var(--primary-dark); }
.enterprise-card .num { font-size: 36px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.enterprise-card h4 { font-size: 16px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.enterprise-card p { font-size: 13px; color: var(--text-body); line-height: 1.7; }
@media (max-width: 900px) { .enterprise-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .enterprise-grid { grid-template-columns: 1fr; } }

/* Footer */
.footer { background: #0F2B4A; color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand h3 { font-size: 20px; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); }
.footer h4 { font-size: 15px; font-weight: 600; color: var(--white); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-links a:hover { color: var(--white); }
.footer-contact p { font-size: 14px; line-height: 2; color: rgba(255,255,255,0.6); }
.footer-contact a { color: #60CAFF; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); margin-top: 20px; }

/* Modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(15,43,74,0.6); backdrop-filter: blur(4px); z-index: 2000; align-items: center; justify-content: center; padding: 24px; }
.modal-overlay.open { display: flex; }
.modal-card { background: var(--white); border-radius: 16px; padding: 32px 28px; max-width: 360px; width: 100%; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.3); text-align: center; }
.modal-close { position: absolute; top: 12px; right: 12px; width: 32px; height: 32px; border: none; background: var(--bg-gray); border-radius: 50%; cursor: pointer; font-size: 18px; color: var(--text-body); display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.modal-close:hover { background: var(--border); }
.modal-qr { width: 240px; height: 240px; margin: 0 auto 16px; background: var(--bg-gray); border-radius: 12px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.modal-qr img { width: 100%; height: 100%; object-fit: contain; }
.modal-title { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.modal-subtitle { font-size: 14px; color: var(--text-light); margin-bottom: 8px; }
.modal-tip { font-size: 12px; color: var(--text-light); margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }

/* Course List (Train Page) */
.course-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.course-card { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 2px solid transparent; transition: var(--transition); }
.course-card:hover { border-color: var(--ai-purple); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.course-card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.course-icon { width: 40px; height: 40px; background: var(--ai-purple-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.course-card h4 { font-size: 16px; font-weight: 700; color: var(--text-dark); flex: 1; }
.course-card p { font-size: 13px; color: var(--text-body); line-height: 1.6; margin-bottom: 14px; }
.course-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.course-badge { font-size: 11px; padding: 2px 8px; background: var(--ai-purple-light); color: var(--ai-purple); border-radius: 100px; }

/* Team Section */
.team-intro { text-align: center; margin-bottom: 40px; }
.team-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 20px; margin-bottom: 0; }
.team-stat { background: var(--white); border-radius: var(--radius); padding: 24px; text-align: center; box-shadow: var(--shadow); }
.team-stat-num { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.team-stat-label { font-size: 13px; color: var(--text-light); }

/* Misc */
.text-center { text-align: center; }
.mt-48 { margin-top: 48px; }
.mb-48 { margin-bottom: 48px; }
.tag-primary { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 100px; }
.tag-accent { display: inline-block; background: var(--accent-light); color: #00695C; font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 100px; }

/* Responsive */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-mobile { display: block; }
  .hero-path { gap: 8px; }
  .hero-path-arrow { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .flow-arrow { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 600px) {
  .section { padding: 60px 0; }
  .section-title h2 { font-size: 28px; }
  .hero h1 { font-size: 28px; }
  .hero h2 { font-size: 24px; }
  .hero-path-step { font-size: 12px; padding: 8px 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .products-grid { grid-template-columns: 1fr; }
  .modules-grid { grid-template-columns: 1fr; }
  .mentors-grid { grid-template-columns: 1fr 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .about-values { grid-template-columns: 1fr; }
}