/* Features Page Styles - 全新设计 */

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* 全宽背景英雄区域 */
.features-hero-fullwidth {
    position: relative;
    padding: 140px 0 100px;
    margin-top: 56px;
    background: linear-gradient(135deg, #0052cc 0%, #0066ff 100%);
    color: white;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect fill="rgba(255,255,255,0.03)" width="50" height="50"/></svg>');
    opacity: 0.1;
}

.hero-content-centered {
    position: relative;
    text-align: center;
    z-index: 1;
}

.features-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.title-highlight {
    display: block;
    margin-top: 10px;
}

.features-subtitle {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 48px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-overview-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.overview-stat {
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.overview-stat .stat-number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    color: white;
}

.overview-stat .stat-label {
    font-size: 14px;
    opacity: 0.9;
    color: white;
}

/* 卡片网格功能展示 */
.features-cards-section {
    padding: var(--space-xl) 0;
    background: white;
}

.section-header-center {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.section-title .highlight {
    color: #0052cc;
}

.section-description {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.features-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-md);
}

.feature-module-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all 0.3s ease;
}

.feature-module-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 82, 204, 0.15);
    border-color: rgba(0, 82, 204, 0.3);
}

.module-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.module-icon i {
    font-size: 28px;
    color: #0052cc;
}

.feature-module-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.feature-module-card > p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 14px;
    color: #333;
}

.feature-list i {
    color: #10b981;
    font-size: 14px;
}

/* 四宫格优势展示 */
.features-advantages-section {
    padding: var(--space-xl) 0;
    background: #f8f9fa;
}

.advantages-four-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
}

.advantage-box {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all 0.3s ease;
    position: relative;
}

.advantage-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 82, 204, 0.2);
    border-color: rgba(0, 82, 204, 0.4);
}

.advantage-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: 700;
    color: rgba(0, 82, 204, 0.08);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.advantage-icon i {
    font-size: 32px;
    color: #0052cc;
}

.advantage-box h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.advantage-box p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .features-cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

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

@media (max-width: 768px) {
    .features-hero-fullwidth {
        padding: 100px 0 80px;
    }

    .features-title {
        font-size: 36px;
    }

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

    .features-overview-stats {
        gap: var(--space-md);
    }

    .overview-stat {
        padding: 20px 24px;
    }

    .overview-stat .stat-number {
        font-size: 28px;
    }

    .section-title {
        font-size: 28px;
    }

    .features-cards-grid {
        grid-template-columns: 1fr;
    }

    .advantages-four-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .features-title {
        font-size: 28px;
    }

    .features-overview-stats {
        flex-direction: column;
        align-items: stretch;
    }

    .overview-stat {
        text-align: center;
    }
}