/* ========================================
   拓冰建站 - 响应式页面专用样式
   ======================================== */

/* Service Detail Page */
.service-detail-header {
    background: linear-gradient(135deg, #c0c0c0 0%, #add8e6 100%);
    padding: 200px 0 120px;
    position: relative;
    overflow: hidden;
}

.service-detail-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(30deg);
}

.service-detail-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.service-detail-content {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.service-detail-content h2 {
    font-size: 32px;
    color: var(--dark-gray);
    margin-bottom: 25px;
}

.service-detail-content p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--medium-gray);
    margin-bottom: 20px;
}

.service-sidebar {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    height: fit-content;
    position: sticky;
    top: 120px;
}

.sidebar-title {
    font-size: 22px;
    color: var(--dark-gray);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--silver-light);
}

.service-list {
    list-style: none;
}

.service-list li {
    margin-bottom: 15px;
}

.service-list a {
    display: block;
    padding: 15px 20px;
    background: var(--silver-light);
    border-radius: 10px;
    color: var(--dark-gray);
    font-weight: 600;
    transition: all 0.3s ease;
}

.service-list a:hover,
.service-list a.active {
    background: var(--gradient-primary);
    transform: translateX(10px);
}

/* Process Section */
.process-section {
    padding: 100px 0;
    background: var(--white);
}

.process-steps {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.process-step {
    text-align: center;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '→';
    position: absolute;
    top: 40px;
    right: -20px;
    font-size: 30px;
    color: var(--light-blue-dark);
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    color: var(--dark-gray);
    margin: 0 auto 25px;
}

.step-title {
    font-size: 20px;
    color: var(--dark-gray);
    margin-bottom: 15px;
}

.step-desc {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.7;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #f0f8ff 100%);
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 40px;
}

.faq-item {
    background: var(--white);
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.06);
}

.faq-question {
    padding: 25px 30px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-gray);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--silver-light);
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    color: var(--light-blue-dark);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

.faq-item.active .faq-answer {
    padding: 0 30px 25px;
    max-height: 500px;
}

.faq-answer p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--medium-gray);
}

/* Pricing Section */
.pricing-section {
    padding: 100px 0;
    background: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.pricing-card {
    background: var(--white);
    border-radius: 20px;
    padding: 50px 40px;
    text-align: center;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-15px);
    border-color: var(--light-blue);
}

.pricing-card.featured {
    background: var(--gradient-secondary);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-15px);
}

.pricing-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    color: var(--dark-gray);
}

.pricing-name {
    font-size: 24px;
    color: var(--dark-gray);
    margin-bottom: 15px;
}

.pricing-price {
    font-size: 48px;
    font-weight: 800;
    color: var(--light-blue-dark);
    margin-bottom: 30px;
}

.pricing-price span {
    font-size: 16px;
    color: var(--medium-gray);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin-bottom: 35px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--silver-light);
    font-size: 15px;
    color: var(--medium-gray);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* Portfolio Grid */
.portfolio-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #f0f8ff 100%);
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    background: var(--white);
    border: 2px solid var(--silver-light);
    border-radius: 50px;
    font-size: 15px;
    color: var(--dark-gray);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
}

.portfolio-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.portfolio-overlay p {
    font-size: 14px;
    opacity: 0.9;
}

/* Responsive */
@media (max-width: 992px) {
    .service-detail-wrapper {
        grid-template-columns: 1fr;
    }
    
    .service-sidebar {
        position: static;
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-step:not(:last-child)::after {
        display: none;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .service-detail-header {
        padding: 150px 0 80px;
    }
    
    .service-detail-content {
        padding: 30px;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}