/* service-online-education.css - Extracted from inline styles */
:root {
      --red: #E60012; --red-hover: #CC0010; --red-light: rgba(230,0,18,0.08);
      --blue: #003366; --blue-light: #0066cc; --blue-lighter: #e8f0fa;
      --nav-bg: #0a1628; --body-bg: #ffffff; --section-bg: #f5f7fa;
      --text-dark: #333333; --text-body: #555555; --text-muted: #888888;
      --border-light: #e5e7eb; --card-shadow: 0 2px 12px rgba(0,0,0,0.08);
      --card-shadow-hover: 0 8px 30px rgba(0,0,0,0.12); --header-h: 120px;
      --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
      --font-display: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { background: var(--body-bg); color: var(--text-dark); font-family: var(--font-body); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
    ::-webkit-scrollbar { width: 6px; } ::-webkit-scrollbar-track { background: #f0f0f0; } ::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }
    .animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
    .animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

    
    
    
    .logo { font-size: 22px; font-weight: 800; color: #fff; text-decoration: none; letter-spacing: -0.5px; }
    .logo span { color: var(--red); }
    
    
    
    
    
    
    
    
    
    
    
    

    .hero-banner { position: relative; overflow: hidden; padding: 140px 32px 100px; min-height: 520px; display: flex; align-items: center; background: linear-gradient(135deg, #0a1628 0%, #0f2035 40%, #132a45 100%); }
    .hero-banner::before { content: ''; position: absolute; inset: 0; background: url('../images/hero-online-education.jpg') center/cover no-repeat; opacity: 0.5; z-index: 1; }
    .hero-banner::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(10,22,40,0.5) 0%, rgba(15,32,53,0.3) 50%, rgba(10,22,40,0.4) 100%); z-index: 2; }
    .hero-inner { max-width: 1440px; margin: 0 auto; position: relative; z-index: 3; width: 100%; }
    .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.35); margin-bottom: 28px; }
    .breadcrumb a { color: rgba(255,255,255,0.5); text-decoration: none; transition: color 0.2s; }
    .breadcrumb a:hover { color: var(--red); }
    .breadcrumb .sep { color: rgba(255,255,255,0.2); }
    .breadcrumb .current { color: rgba(255,255,255,0.6); }
    .hero-label { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; background: var(--red-light); border: 1px solid rgba(230,0,18,0.2); border-radius: 100px; font-size: 12px; font-weight: 600; color: var(--red); letter-spacing: 0.05em; margin-bottom: 20px; }
    .hero-title { font-family: var(--font-display); font-size: clamp(32px, 5vw, 56px); font-weight: 900; line-height: 1.2; color: #fff; margin-bottom: 16px; }
    .hero-subtitle { font-size: 18px; color: rgba(255,255,255,0.5); font-weight: 500; letter-spacing: 0.1em; margin-bottom: 24px; }
    .hero-desc { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,0.7); max-width: 700px; }
    .hero-btns { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }
    .btn-hero-primary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; font-size: 15px; font-weight: 600; color: #fff; background: var(--red); border: none; border-radius: 8px; cursor: pointer; text-decoration: none; transition: all 0.3s; }
    .btn-hero-primary:hover { background: var(--red-hover); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(230,0,18,0.3); }
    .btn-hero-secondary { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; font-size: 15px; font-weight: 600; color: #fff; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: 8px; cursor: pointer; text-decoration: none; transition: all 0.3s; }
    .btn-hero-secondary:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.3); }

    .section-header { text-align: center; margin-bottom: 56px; }
    .section-header h2 { font-size: 32px; font-weight: 800; color: var(--blue); margin-bottom: 12px; }
    .section-header p { font-size: 16px; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

    /* PLATFORM DEMO */
    .demo-section { padding: 80px 32px; background: var(--body-bg); }
    .demo-inner { max-width: 1440px; margin: 0 auto; }
    .demo-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; }
    .video-player { background: #0d1117; border-radius: 16px; overflow: hidden; position: relative; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; }
    .video-player .play-overlay { text-align: center; z-index: 2; }
    .video-player .play-btn { width: 72px; height: 72px; border-radius: 50%; background: var(--red); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 28px; color: #fff; cursor: pointer; box-shadow: 0 4px 20px rgba(230,0,18,0.4); transition: all 0.3s; }
    .video-player .play-btn:hover { transform: scale(1.1); }
    .video-player .play-text { color: rgba(255,255,255,0.6); font-size: 14px; }
    .video-player::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(13,17,23,0.95), rgba(13,17,23,0.8)); z-index: 1; }
    .video-player .video-bg { position: absolute; inset: 0; background: url('../images/cover-online-course.jpg') center/cover no-repeat; }
    .course-sidebar { display: flex; flex-direction: column; gap: 16px; }
    .course-list-header { font-size: 16px; font-weight: 700; color: var(--blue); padding-bottom: 12px; border-bottom: 2px solid var(--red); }
    .course-item { background: #fff; border: 1px solid var(--border-light); border-radius: 12px; padding: 16px; display: flex; align-items: center; gap: 14px; transition: all 0.2s; cursor: default; }
    .course-item:hover { border-color: rgba(230,0,18,0.2); box-shadow: var(--card-shadow); }
    .course-num { width: 36px; height: 36px; border-radius: 10px; background: var(--red-light); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; color: var(--red); flex-shrink: 0; }
    .course-item h5 { font-size: 14px; font-weight: 600; color: var(--text-dark); margin-bottom: 4px; }
    .course-item p { font-size: 12px; color: var(--text-muted); }

    /* CORE MODULES */
    .modules-section { padding: 80px 32px; background: var(--section-bg); }
    .modules-inner { max-width: 1440px; margin: 0 auto; }
    .modules-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .module-card { background: #fff; border-radius: 16px; padding: 36px 24px; box-shadow: var(--card-shadow); border: 1px solid var(--border-light); text-align: center; transition: all 0.3s; position: relative; }
    .module-card::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 40px; height: 3px; background: var(--red); border-radius: 2px; }
    .module-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); }
    .module-card-icon { width: 60px; height: 60px; border-radius: 16px; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 26px; }
    .module-card:nth-child(1) .module-card-icon { background: rgba(230,0,18,0.1); }
    .module-card:nth-child(2) .module-card-icon { background: rgba(0,102,204,0.1); }
    .module-card:nth-child(3) .module-card-icon { background: rgba(5,150,105,0.1); }
    .module-card:nth-child(4) .module-card-icon { background: rgba(255,152,0,0.1); }
    .module-card h3 { font-size: 18px; font-weight: 700; color: var(--blue); margin-bottom: 10px; }
    .module-card p { font-size: 14px; line-height: 1.7; color: var(--text-body); margin-bottom: 16px; }
    .module-features { list-style: none; padding: 0; text-align: left; }
    .module-features li { font-size: 13px; color: var(--text-muted); padding: 4px 0; display: flex; align-items: center; gap: 8px; }
    .module-features li::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--red); flex-shrink: 0; }

    /* INSTITUTION */
    .institution-section { padding: 80px 32px; background: var(--body-bg); }
    .institution-inner { max-width: 1440px; margin: 0 auto; }
    .institution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
    .institution-card { background: #fff; border-radius: 20px; padding: 48px 32px; text-align: center; box-shadow: var(--card-shadow); border: 1px solid var(--border-light); transition: all 0.4s; }
    .institution-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); }
    .institution-icon { width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; font-size: 36px; }
    .institution-card:nth-child(1) .institution-icon { background: linear-gradient(135deg, rgba(230,0,18,0.1), rgba(230,0,18,0.05)); }
    .institution-card:nth-child(2) .institution-icon { background: linear-gradient(135deg, rgba(0,102,204,0.1), rgba(0,102,204,0.05)); }
    .institution-card:nth-child(3) .institution-icon { background: linear-gradient(135deg, rgba(5,150,105,0.1), rgba(5,150,105,0.05)); }
    .institution-card h3 { font-size: 22px; font-weight: 700; color: var(--blue); margin-bottom: 12px; }
    .institution-card p { font-size: 14px; line-height: 1.8; color: var(--text-body); }

    /* STATS BAR */
    .stats-section { padding: 60px 32px; background: linear-gradient(135deg, var(--blue) 0%, #004080 100%); }
    .stats-inner { max-width: 1440px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
    .stat-item { text-align: center; }
    .stat-number { font-size: 42px; font-weight: 900; color: #fff; margin-bottom: 8px; font-family: var(--font-display); }
    .stat-number span { font-size: 20px; }
    .stat-label { font-size: 14px; color: rgba(255,255,255,0.7); font-weight: 500; }
    .stat-desc { font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 4px; }

    /* CTA */
    .cta-section { padding: 80px 32px; background: linear-gradient(135deg, #0a1628 0%, #0f2035 100%); position: relative; overflow: hidden; }
    .cta-section::before { content: ''; position: absolute; top: -100px; right: -100px; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(230,0,18,0.1) 0%, transparent 60%); pointer-events: none; }
    .cta-inner { max-width: 1440px; margin: 0 auto; position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 60px; }
    .cta-info { flex: 1; }
    .cta-info h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 16px; }
    .cta-info p { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,0.6); margin-bottom: 24px; }
    .cta-contacts { display: flex; flex-direction: column; gap: 12px; }
    .cta-contact { display: flex; align-items: center; gap: 10px; font-size: 15px; color: rgba(255,255,255,0.7); }
    .cta-contact strong { color: #fff; }
    .cta-contact-icon { width: 36px; height: 36px; border-radius: 8px; background: rgba(230,0,18,0.15); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; color: var(--red); }
    .cta-contact-icon .svg-icon svg { width: 18px; height: 18px; }
    .cta-form { width: 400px; flex-shrink: 0; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 32px; backdrop-filter: blur(10px); }
    .cta-form h3 { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 20px; }
    .form-group { margin-bottom: 16px; }
    .form-input { width: 100%; padding: 12px 16px; font-size: 14px; color: #fff; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; outline: none; transition: all 0.3s; font-family: var(--font-body); }
    .form-input:focus { border-color: var(--red); background: rgba(255,255,255,0.1); }
    .form-input::placeholder { color: rgba(255,255,255,0.3); }
    .form-textarea { width: 100%; padding: 12px 16px; font-size: 14px; color: #fff; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; outline: none; resize: vertical; min-height: 100px; transition: all 0.3s; font-family: var(--font-body); }
    .form-textarea:focus { border-color: var(--red); background: rgba(255,255,255,0.1); }
    .form-textarea::placeholder { color: rgba(255,255,255,0.3); }
    .btn-submit { width: 100%; padding: 14px; font-size: 15px; font-weight: 600; color: #fff; background: var(--red); border: none; border-radius: 8px; cursor: pointer; transition: all 0.3s; font-family: var(--font-body); }
    .btn-submit:hover { background: var(--red-hover); }

    .site-footer { background: #fff; border-top: 1px solid var(--border-light); padding: 48px 32px 24px; }
    .footer-inner { max-width: 1440px; margin: 0 auto; }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
    .footer-brand .logo { margin-bottom: 12px; display: inline-block; }
    .footer-brand p { font-size: 14px; line-height: 1.7; color: var(--text-muted); margin-bottom: 16px; }
    .footer-social { display: flex; gap: 8px; }
    .footer-social a { width: 36px; height: 36px; border-radius: 8px; background: var(--section-bg); display: flex; align-items: center; justify-content: center; font-size: 16px; color: var(--text-muted); text-decoration: none; transition: all 0.2s; }
    .footer-social a:hover { background: var(--red-light); color: var(--red); }
    .footer-col h4 { font-size: 15px; font-weight: 600; color: var(--text-dark); margin-bottom: 16px; }
    .footer-col ul { list-style: none; } .footer-col li { margin-bottom: 10px; }
    .footer-col a { font-size: 14px; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
    .footer-col a:hover { color: var(--red); }
    .footer-bottom { padding-top: 24px; border-top: 1px solid var(--border-light); display: flex; align-items: center; justify-content: space-between; }
    .footer-bottom p { font-size: 13px; color: var(--text-muted); }
    .footer-tags { display: flex; gap: 12px; flex-wrap: wrap; }
    .footer-tag { font-size: 12px; color: var(--text-muted); padding: 4px 12px; background: var(--section-bg); border-radius: 100px; }@media (max-width: 1440px) {
      .demo-layout { grid-template-columns: 1fr; }
      .modules-grid { grid-template-columns: repeat(2, 1fr); }
      .institution-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
      .stats-inner { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
      .cta-inner { flex-direction: column; } .cta-form { width: 100%; }
    }
    @media (max-width: 640px) {
      .modules-grid { grid-template-columns: 1fr; }
      .stats-inner { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
      
      .hero-banner { padding: 120px 16px 60px; min-height: 400px; }
    }