/* 金K训练营新版首页样式 */
:root {
    --primary-color: #1a237e;
    --primary-light: #534bae;
    --primary-dark: #000051;
    --secondary-color: #00bcd4;
    --accent-color: #ff4081;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #bdbdbd;
    --background-light: #fafafa;
    --background-dark: #303030;
    --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 16px rgba(0,0,0,0.2);
    --border-radius: 8px;
    --border-radius-large: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--background-light);
    overflow-x: hidden;
}

/* 为FastAdmin固定导航栏留出空间 */
html {
    scroll-padding-top: 70px;
}

body {
    padding-top: 50px;
}

/* 英雄区域 */
.hero-section {
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
    margin-top: 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23fff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23fff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>');
    opacity: 0.1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 64px;
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.hero-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 48px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 24px;
    align-items: center;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    padding: 16px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.btn-outline {
    color: white;
    border: 2px solid white;
    padding: 14px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
}

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    /* width: 320px;
    height: 640px; */
    width: 250px;
    height: 500px;
    background: white;
    border-radius: 32px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.phone-screen {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* 特色功能区域 */
.features-section {
    padding: 20px 0;
    background: white;
}

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

.section-header {
    text-align: center;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 38px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature-card {
    background: white;
    padding: 24px 20px;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 24px;
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 训练模式区域 */
.training-modes-section {
    padding: 30px 0;
    background: var(--background-light);
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.mode-card {
    background: white;
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

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

.mode-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.mode-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(45deg);
    transition: var(--transition);
}

.mode-card:hover .mode-header::before {
    top: -25%;
    right: -25%;
}

.mode-header h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.mode-header p {
    font-size: 16px;
    opacity: 0.9;
}

.mode-body {
    padding: 24px;
}

.mode-features {
    list-style: none;
}

.mode-features li {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.mode-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
    margin-right: 12px;
    font-size: 16px;
}

/* 小程序介绍区域 */
.mini-program-section {
    padding: 20px 0;
    background: white;
}

.mini-program-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.mini-program-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-item i {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.qr-section {
    text-align: center;
}

.qr-section h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.qr-code {
    width: 240px;
    height: 240px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius-large);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-secondary);
    box-shadow: var(--shadow-medium);
}

/* 显示FastAdmin默认页脚 */
.footer {
    display: block;
    /* padding: 20px 0; */
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    text-align: center;
    margin-top: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        min-height: auto;
        padding: 30px 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .features-section,
    .training-modes-section,
    .mini-program-section {
        padding: 30px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .modes-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .mini-program-container {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }

    .nav-links {
        display: none;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}