/* Features Page Styles */
.features-hero {
    height: 30vh;
    background-image: linear-gradient(
        rgba(44, 82, 130, 0.85), 
        rgba(49, 130, 206, 0.85)
    ),
    url('assets/hero-bg.jpg');  /* 需要添加这张图片 */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 1rem;
    margin-top: 60px;
    position: relative;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

/* Main Features Section */
.main-features {
    padding: 4rem 0;
    background: var(--background-light);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.75rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.feature-list li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: '•';
    color: var(--primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Call to Action Section */
.features-cta {
    padding: 4rem 0;
    text-align: center;
    background: white;
}

.features-cta h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.features-cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s ease;
}

.cta-button:hover {
    background: var(--primary-dark);
}

/* Responsive Design */
@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-hero {
        height: 250px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .main-features {
        padding: 3rem 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .features-cta {
        padding: 3rem 0;
    }

    .features-cta h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .features-hero {
        height: 40vh;
        margin-top: 100px;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .main-features {
        padding: 2rem 0;
    }

    .feature-card {
        padding: 1.25rem;
    }

    .feature-icon {
        width: 50px;
        height: 50px;
    }

    .feature-icon i {
        font-size: 1.5rem;
    }

    .feature-card h3 {
        font-size: 1.2rem;
    }

    .features-cta {
        padding: 2rem 0;
    }

    .features-cta h2 {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 0.875rem 1.75rem;
    }
}

/* Core Features Section */
.core-features {
    padding: var(--spacing-lg) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.feature-card {
    background: var(--background);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-sm);
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    text-align: left;
}

.feature-list li::before {
    content: "•";
    color: var(--primary);
    position: absolute;
    left: 0;
}

/* Demo Section */
.feature-demo {
    background: var(--background-light);
    padding: var(--spacing-lg) 0;
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.demo-features {
    margin: var(--spacing-md) 0;
}

.demo-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.demo-feature i {
    color: var(--primary);
}

.demo-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: var(--transition);
}

.demo-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.demo-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Integration Section */
.integration-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.integration-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.integration-item:hover {
    transform: translateY(-5px);
}

.integration-item img {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-sm);
}

/* Pricing Section */
.pricing {
    padding: var(--spacing-lg) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.pricing-card {
    background: var(--background);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.pricing-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

.featured-label {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.price {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin: var(--spacing-md) 0;
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.pricing-features i {
    color: var(--primary);
    margin-right: 0.5rem;
}

.pricing-btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: var(--transition);
}

.pricing-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .integration-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-container {
        padding: 0 var(--spacing-sm);
    }

    .features-hero h1 {
        font-size: 2.5rem;
    }

    .demo-content {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 480px) {
    .features-hero h1 {
        font-size: 2rem;
    }

    .features-grid,
    .integration-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* Team Introduction Section */
.team-intro {
    padding: 5rem 0;
    background: var(--background-light);
}

.team-header {
    text-align: center;
    margin-bottom: 3rem;
}

.team-header h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.team-header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Team Overview */
.team-overview {
    background: white;
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 4rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.lead-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto 3rem;
}

.team-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
    background: var(--background-light);
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Professional Advantages */
.advantages {
    margin-bottom: 4rem;
}

.advantages h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 2.5rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    background: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.advantage-icon i {
    font-size: 1.75rem;
    color: white;
}

.advantage-card h4 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

/* Core Philosophy */
.core-philosophy {
    position: relative;
    background: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85)),
                url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 6rem 0;
    overflow: hidden;
}

/* 增强装饰性背景元素 */
.core-philosophy::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1557683316-973673baf926?auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    opacity: 0.08;
    z-index: 0;
    mix-blend-mode: multiply;
}

.philosophy-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

/* 增强内容区域的对比度 */
.philosophy-text {
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
}

.philosophy-text h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 2rem;
    position: relative;
}

.philosophy-text h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary);
}

.philosophy-text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.philosophy-image {
    position: relative;
    height: 100%;
    min-height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.philosophy-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .philosophy-text {
        padding: 2rem;
    }

    .philosophy-text h2 {
        font-size: 2rem;
    }

    .philosophy-image {
        min-height: 300px;
    }
}

/* Service Mission */
.service-mission {
    padding: 6rem 0;
}

.mission-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.mission-left {
    position: sticky;
    top: 2rem;
    padding-top: 2rem;
}

.mission-left h2 {
    font-size: 2.8rem;
    color: #333;
    margin-bottom: 1.5rem;
}

.mission-intro {
    font-size: 1.2rem;
    color: #666 !important;
    line-height: 1.8;
    background:rgba(229, 231, 235, 0.15) !important;
}

.mission-right {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mission-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    transition: transform 0.3s ease;
    position: relative;
}

.mission-item:hover {
    transform: translateX(10px);
}

.mission-tag {
    position: absolute;
    left: -1rem;
    top: 2.5rem;
    background: var(--primary);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
}

.mission-item h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.mission-item p {
    color: #666 !important;
    line-height: 1.7;
    background-color: #fff !important;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .mission-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .mission-left {
        position: static;
        text-align: center;
        padding-top: 0;
    }

    .mission-intro {
        max-width: 600px;
        margin: 0 auto;
    }

    .mission-item:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 576px) {
    .mission-left h2 {
        font-size: 2.2rem;
    }

    .mission-item {
        padding: 2rem;
    }

    .mission-tag {
        left: 2rem;
        top: -0.8rem;
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .team-stats,
    .advantages-grid,
    .mission-highlights {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .team-intro {
        padding: 3rem 0;
    }

    .team-header h2 {
        font-size: 2rem;
    }

    .lead-text {
        font-size: 1.1rem;
    }

    .team-stats,
    .advantages-grid,
    .mission-highlights {
        grid-template-columns: 1fr;
    }

    .core-philosophy {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .philosophy-points {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2rem;
    }

    .team-overview {
        padding: 1.5rem;
    }
}