/* 全局样式 */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    background: rgba(0, 0, 0, 0.4);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-buttons .btn {
    padding: 12px 30px;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.hero-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 通用样式 */
.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 3rem;
}

/* About Section */
.feature-item {
    text-align: center;
    padding: 20px;
}

.feature-item i {
    font-size: 2rem;
    display: block;
}

.feature-item h5 {
    font-weight: 600;
    margin: 10px 0 5px 0;
}

/* Services Section */
.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px auto;
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card h4 {
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* Contact Section */
.contact-item i {
    font-size: 2.5rem;
    display: block;
}

.contact-item h5 {
    font-weight: 600;
    margin: 15px 0 10px 0;
}

.contact-form {
    background: var(--light-color);
    padding: 40px;
    border-radius: 10px;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Footer */
footer {
    background: var(--dark-color) !important;
}

.social-links a {
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color) !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .contact-form {
        padding: 20px;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}
/* Designers Section */
.designer-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.designer-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.designer-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.designer-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.designer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.designer-card:hover .designer-overlay {
    opacity: 1;
}

.designer-card:hover .designer-image img {
    transform: scale(1.1);
}

.designer-info {
    padding: 25px;
}

.designer-info h4 {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.designer-info p {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.designer-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.designer-tags .badge {
    font-size: 0.75rem;
    padding: 5px 10px;
}

/* 统计数据样式 */
.stats-section {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    display: block;
    margin-bottom: 10px;
}

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

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #0056b3;
    transform: translateY(-3px);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .designer-image {
        height: 180px;
    }
    
    .designer-info {
        padding: 20px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}