/* 首页专用样式 - 绿色主题 */

/* 页面标题区域 */
.page-header {
    text-align: center;
    padding: 3em 0;
    background: linear-gradient(135deg, rgba(67, 160, 71, 0.12) 0%, rgba(102, 187, 106, 0.12) 100%);
    border-radius: 20px;
    margin: 2em 0;
}

.page-header h1 {
    font-size: 3em;
    margin-bottom: 0.5em;
    background: linear-gradient(135deg, #43a047 0%, #66bb6a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.page-header p {
    font-size: 1.3em;
    color: #388e3c;
    max-width: 600px;
    margin: 0 auto;
}

/* 介绍区域 */
.intro-section {
    padding: 4em 0;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 20px;
    margin: 3em 0;
    box-shadow: 0 15px 35px rgba(67,160,71,0.08);
}

.intro-section h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 2em;
    color: #2e7d32;
    position: relative;
}

.intro-section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #43a047, #66bb6a);
    border-radius: 2px;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3em;
    align-items: center;
}

.intro-text p {
    font-size: 1.1em;
    line-height: 1.8;
    color: #388e3c;
    margin-bottom: 1.5em;
}

.intro-video {
    text-align: center;
}

.intro-video video {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 16 / 9;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.intro-video video:hover {
    transform: scale(1.02);
}

/* 特色功能区域 */
.features-section {
    padding: 4em 0;
}

.features-section h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 3em;
    color: #2e7d32;
    position: relative;
}

.features-section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #43a047, #66bb6a);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2em;
}

.feature-card {
    background: rgba(255, 255, 255, 0.97);
    border-radius: 20px;
    padding: 2.5em;
    text-align: center;
    box-shadow: 0 10px 30px rgba(67,160,71,0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #c8e6c9;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #43a047, #66bb6a);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3em;
    margin-bottom: 1em;
    display: block;
    color: #43a047;
}

.feature-card h3 {
    font-size: 1.5em;
    margin-bottom: 1em;
    color: #2e7d32;
}

.feature-card p {
    color: #388e3c;
    margin-bottom: 1.5em;
    line-height: 1.6;
}

/* 数据统计区域 */
.stats-section {
    padding: 4em 0;
    background: linear-gradient(135deg, #43a047 0%, #66bb6a 100%);
    border-radius: 20px;
    margin: 3em 0;
    color: #fff;
}

.stats-section h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 3em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2em;
}

.stat-item {
    text-align: center;
    padding: 2em;
    background: rgba(255,255,255,0.13);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(67,160,71,0.08);
}

.stat-item:hover {
    transform: scale(1.05);
}

.stat-number {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 0.5em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #fff, #a5d6a7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1em;
    opacity: 0.9;
}

/* 反馈表单区域 */
.feedback-section {
    padding: 4em 0;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    margin: 3em 0;
    box-shadow: 0 15px 35px rgba(67,160,71,0.08);
}

.feedback-section h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 1em;
    color: #2e7d32;
}

.feedback-section > .container > p {
    text-align: center;
    font-size: 1.2em;
    color: #388e3c;
    margin-bottom: 2em;
}

.feedback-form {
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid #c8e6c9;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5em;
}

/* 响应式设计 */
@media (max-width: 900px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 2em;
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 2.5em;
    }

    .intro-section h2,
    .features-section h2,
    .stats-section h2,
    .feedback-section h2 {
        font-size: 2em;
    }
}

@media (max-width: 600px) {
    .page-header {
        padding: 2em 0;
    }

    .page-header h1 {
        font-size: 2em;
    }

    .page-header p {
        font-size: 1.1em;
    }

    .intro-section,
    .features-section,
    .stats-section,
    .feedback-section {
        padding: 2em 0;
    }

    .feature-card {
        padding: 2em;
    }

    .stat-item {
        padding: 1.5em;
    }

    .stat-number {
        font-size: 2.5em;
    }

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