/* 探索者航空 - 全局样式 */
:root {
    --primary: #0066cc;
    --primary-dark: #004499;
    --primary-light: #3388dd;
    --secondary: #00aa88;
    --accent: #ff6600;
    --accent-light: #ff8833;
    --dark: #1a1a2e;
    --darker: #0d0d1a;
    --gray-900: #16213e;
    --gray-800: #1e2a4a;
    --gray-700: #2d3a5c;
    --gray-600: #4a5568;
    --gray-500: #718096;
    --gray-400: #a0aec0;
    --gray-300: #cbd5e0;
    --gray-200: #e2e8f0;
    --gray-100: #f7fafc;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-hero: linear-gradient(135deg, var(--darker) 0%, var(--dark) 50%, var(--gray-900) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.2);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-800);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--white);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: all 0.3s ease;
    background: transparent;
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    padding: 0.75rem 2rem;
}
.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--white);
    font-weight: 700;
    font-size: 1.4rem;
    transition: color 0.3s;
}
.navbar.scrolled .logo { color: var(--dark); }
.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(255, 102, 0, 0.3);
}
.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}
.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s;
    position: relative;
    padding: 0.5rem 0;
}
.navbar.scrolled .nav-links a { color: var(--dark); }
.nav-links a:hover { color: var(--white); }
.navbar.scrolled .nav-links a:hover { color: var(--accent); }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}
.nav-links a:hover::after { width: 100%; }
.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: none;
}
.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 20px rgba(255, 102, 0, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 102, 0, 0.4);
}
.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}
.navbar.scrolled .btn-outline {
    color: var(--accent);
    border-color: var(--accent);
}
.navbar.scrolled .btn-outline:hover {
    background: var(--accent);
    color: white;
}
.btn-lg { padding: 1rem 2rem; font-size: 1.1rem; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}
.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: white;
    transition: all 0.3s;
}
.navbar.scrolled .mobile-toggle span { background: var(--dark); }

/* Hero Section */
.hero {
    min-height: 100vh;
    background: var(--gradient-hero);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 102, 204, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 102, 0, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(0, 170, 136, 0.1) 0%, transparent 50%);
}
.hero-particles {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    overflow: hidden;
}
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 15s infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}
.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.hero-text { animation: fadeInUp 1s ease; }
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 102, 0, 0.2);
    border: 1px solid rgba(255, 102, 0, 0.4);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    color: var(--accent-light);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}
.hero-badge i { animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    color: white;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}
.hero h1 span { color: var(--accent); }
.hero-description {
    font-size: 1.2rem;
    color: var(--gray-400);
    margin-bottom: 2rem;
    line-height: 1.8;
}
.hero-buttons { display: flex; gap: 1rem; margin-bottom: 3rem; }
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}
.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.stat-suffix { color: white; }
.stat-label {
    font-size: 0.8rem;
    color: var(--gray-400);
    margin-top: 0.5rem;
}
.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease 0.3s both;
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}
.hero-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(20px);
}
.hero-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}
.hero-card-title h3 {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
}
.hero-card-title p { color: var(--gray-400); font-size: 0.875rem; }
.schedule-table { width: 100%; }
.schedule-row {
    display: grid;
    grid-template-columns: 1fr 1fr 80px;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.schedule-row:last-child { border-bottom: none; }
.schedule-row span { color: white; font-size: 0.95rem; }
.schedule-row span:first-child { color: var(--gray-300); }
.schedule-row span:last-child { text-align: right; color: var(--accent); font-weight: 600; }

/* Section Styles */
.section { padding: 6rem 2rem; }
.section-dark { background: var(--gray-100); }
.container { max-width: 1400px; margin: 0 auto; }
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 102, 0, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
    line-height: 1.3;
}
.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.about-content h2 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1.5rem;
    line-height: 1.3;
}
.about-content h2 span { color: var(--accent); }
.about-content p {
    color: var(--gray-600);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}
.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}
.about-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
}
.about-tag i { font-size: 0.75rem; }
.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
.about-stat {
    background: white;
    padding: 1.25rem 0.75rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}
.about-stat-number {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
}
.about-stat-label {
    color: var(--gray-600);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}
.about-image { position: relative; }

/* About Intro (for region pages) */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.about-img-placeholder {
    background: var(--gradient-primary);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    color: white;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.about-img-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}
.about-img-placeholder p {
    font-size: 1.1rem;
    font-weight: 600;
}
.about-text h2 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1.5rem;
}
.about-text h2 span {
    color: var(--primary);
}
.about-text p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}
.about-features {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}
.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.about-feature i {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.about-feature h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.25rem;
}
.about-feature p {
    color: var(--gray-500);
    font-size: 0.95rem;
    margin: 0;
}
.about-img-main {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(102, 126, 234, 0.4);
}
.about-img-main::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255,255,255,0.03) 10px,
        rgba(255,255,255,0.03) 20px
    );
    animation: slide 20s linear infinite;
}
@keyframes slide {
    0% { transform: translate(-50%, -50%); }
    100% { transform: translate(0, 0); }
}
.about-img-main::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: pulse 4s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}
.about-img-main i { 
    font-size: 8rem; 
    color: white;
    opacity: 0.95;
    z-index: 2;
    filter: drop-shadow(0 15px 40px rgba(0,0,0,0.4));
    animation: fly 4s ease-in-out infinite;
    transform-origin: center center;
}
@keyframes fly {
    0%, 100% { 
        transform: translateY(0) translateX(0) rotate(-3deg) scale(1);
    }
    25% { 
        transform: translateY(-20px) translateX(15px) rotate(2deg) scale(1.05);
    }
    50% { 
        transform: translateY(-10px) translateX(30px) rotate(5deg) scale(1);
    }
    75% { 
        transform: translateY(-25px) translateX(10px) rotate(0deg) scale(1.02);
    }
}
/* 飞行轨迹点 */
.about-img-main .trail {
    position: absolute;
    width: 8px;
    height: 8px;
    background: rgba(255,255,255,0.6);
    border-radius: 50%;
    z-index: 1;
}
.about-img-main .trail:nth-child(1) { top: 30%; left: 20%; animation: fadeTrail 2s ease-in-out infinite; animation-delay: 0s; }
.about-img-main .trail:nth-child(2) { top: 40%; left: 15%; animation: fadeTrail 2s ease-in-out infinite; animation-delay: 0.3s; }
.about-img-main .trail:nth-child(3) { top: 50%; left: 10%; animation: fadeTrail 2s ease-in-out infinite; animation-delay: 0.6s; }
.about-img-main .trail:nth-child(4) { top: 35%; left: 25%; animation: fadeTrail 2s ease-in-out infinite; animation-delay: 0.9s; }
@keyframes fadeTrail {
    0%, 100% { opacity: 0; transform: scale(0.5); }
    50% { opacity: 0.8; transform: scale(1); }
}
.about-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: white;
    color: var(--dark);
    padding: 1rem 1.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    text-align: center;
    min-width: 100px;
    z-index: 3;
}
.about-badge-number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.about-badge-number {
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.about-badge-text { 
    font-size: 0.85rem; 
    font-weight: 500;
    opacity: 0.95;
    margin-top: 0.25rem;
    letter-spacing: 0.5px;
}

/* Courses Section */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    position: relative;
}
.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}
.course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}
.course-badge.new { background: var(--gradient-primary); }
.course-icon {
    height: 180px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}
.course-content { padding: 2rem; }
.course-tag {
    display: inline-block;
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}
.course-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.25rem;
}
.course-content .subtitle {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}
.course-details { margin-bottom: 1.5rem; }
.course-detail {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--gray-600);
    font-size: 0.9rem;
}
.course-detail i { color: var(--accent); width: 16px; }
.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
}
.course-price {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
}
.course-price span {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 400;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s;
}
.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}
.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.75rem;
}
.feature-card p { color: var(--gray-600); font-size: 0.95rem; }

/* Process Section */
.process-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
}
.process-step {
    text-align: center;
    position: relative;
}
.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
}
.process-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-size: 1.75rem;
    font-weight: 800;
    box-shadow: 0 10px 30px rgba(255, 102, 0, 0.3);
}
.process-step h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}
.process-step p { color: var(--gray-600); font-size: 0.875rem; }

/* Jobs Section */
.jobs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.job-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s;
}
.job-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}
.job-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}
.job-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.25rem;
}
.job-salary {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: start;
}
.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    position: relative;
    transition: all 0.3s;
}
.pricing-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-xl); }
.pricing-card.featured {
    transform: scale(1.05);
    border: 2px solid var(--accent);
    box-shadow: var(--shadow-lg);
}
.pricing-card.featured:hover { transform: scale(1.05) translateY(-10px); }
.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-accent);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}
.pricing-header { text-align: center; margin-bottom: 2rem; }
.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}
.pricing-header p { color: var(--gray-500); font-size: 0.9rem; }
.pricing-price {
    text-align: center;
    margin-bottom: 2rem;
}
.pricing-price .price {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.pricing-price .price span {
    font-size: 1rem;
    color: var(--gray-500);
    font-weight: 400;
}
.pricing-features { margin-bottom: 2rem; }
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--gray-600);
    font-size: 0.95rem;
}
.pricing-features li i { color: var(--secondary); }
.pricing-card .btn { width: 100%; }

/* FAQ Section */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.faq-question {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s;
}
.faq-question:hover { background: var(--gray-100); }
.faq-question h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    padding-right: 1rem;
}
.faq-question i {
    color: var(--accent);
    transition: transform 0.3s;
}
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    position: relative;
}
.testimonial-quote {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 4rem;
    color: var(--gray-200);
    font-family: Georgia, serif;
    line-height: 1;
}
.testimonial-content {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}
.testimonial-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
}
.testimonial-info p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* CTA Section */
.cta {
    background: var(--gradient-hero);
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 102, 204, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 102, 0, 0.15) 0%, transparent 50%);
}
.cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}
.cta h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}
.cta h2 span { color: var(--accent); }
.cta p {
    color: var(--gray-400);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}
.cta-buttons { display: flex; gap: 1rem; justify-content: center; }

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}
.contact-info h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}
.contact-info > p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.8;
}
.contact-details { margin-bottom: 2rem; }
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.contact-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.25rem;
}
.contact-item p { color: var(--gray-600); font-size: 0.95rem; }
.contact-item a { color: var(--primary); text-decoration: none; }
.contact-item a:hover { text-decoration: underline; }
.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}
.form-group { margin-bottom: 1.5rem; }
.form-group label {
    display: block;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
    font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 4rem 2rem 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto 3rem;
}
.footer-brand .logo {
    color: white;
    margin-bottom: 1rem;
}
.footer-brand p {
    color: var(--gray-400);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}
.footer-social {
    display: flex;
    gap: 1rem;
}
.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s;
}
.footer-social a:hover { background: var(--accent); }
.footer-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}
.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: all 0.3s;
}
.footer-links a:hover {
    color: white;
    padding-left: 0.5rem;
}
.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Scroll to top */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    border: none;
}
.scroll-top.visible { opacity: 1; visibility: visible; }
.scroll-top:hover { transform: translateY(-5px); }

/* Breadcrumb */
.breadcrumb {
    background: var(--gray-100);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--gray-200);
}
.breadcrumb-container {
    max-width: 1400px;
    margin: 0 auto;
}
.breadcrumb a {
    color: var(--gray-600);
    text-decoration: none;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--gray-400); margin: 0 0.5rem; }
.breadcrumb strong { color: var(--dark); }

/* Page Header */
.page-header {
    background: var(--gradient-hero);
    padding: 8rem 2rem 4rem;
    text-align: center;
    position: relative;
}
.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 102, 204, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 102, 0, 0.15) 0%, transparent 50%);
}
.page-header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}
.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}
.page-header h1 span { color: var(--accent); }
.page-header p {
    color: var(--gray-400);
    font-size: 1.1rem;
}

/* Content Section */
.content-section { padding: 4rem 2rem; }
.content-section h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1.5rem;
}
.content-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin: 2rem 0 1rem;
}
.content-section p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1rem;
}
.content-section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}
.content-section li {
    color: var(--gray-600);
    margin-bottom: 0.5rem;
    line-height: 1.8;
}
.content-section strong { color: var(--dark); }

/* Responsive */
@media (max-width: 1200px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero h1 { font-size: 3rem; }
    .hero-buttons { justify-content: center; }
    .hero-visual { max-width: 500px; margin: 0 auto; }
    .process-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1024px) {
    .courses-grid, .features-grid, .jobs-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-card.featured { transform: none; }
    .pricing-card.featured:hover { transform: translateY(-10px); }
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .about-image { order: -1; }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .mobile-toggle { display: flex; }
    .hero { min-height: auto; padding-top: 120px; padding-bottom: 3rem; }
    .hero h1 { font-size: 2.25rem; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-visual { display: none; }
    .section { padding: 4rem 1rem; }
    .section-title { font-size: 2rem; }
    .courses-grid, .features-grid, .jobs-grid, .pricing-grid, .testimonials-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .process-step:not(:last-child)::after { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    .form-row { grid-template-columns: 1fr; }
    .cta-buttons { flex-direction: column; }
    .contact-grid { gap: 2rem; }
    .page-header { padding: 6rem 1rem 3rem; }
    .page-header h1 { font-size: 2rem; }
}