/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    color: #6366f1;
    font-size: 24px;
}

.brand-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 0;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: #6366f1;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #6366f1;
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.btn-primary {
    background-color: #6366f1;
    color: white;
}

.btn-primary:hover {
    background-color: #4f46e5;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: #6366f1;
    border: 1px solid #6366f1;
}

.btn-outline:hover {
    background-color: #f1f5f9;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #e2e8f0;
    color: #475569;
}

.btn-secondary:hover {
    background-color: #cbd5e1;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #64748b;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto 40px;
}

.search-box {
    max-width: 700px;
    margin: 0 auto 30px;
    display: flex;
    background: white;
    border-radius: 12px;
    padding: 5px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.search-icon {
    padding: 15px;
    color: #94a3b8;
}

.search-input {
    flex: 1;
    border: none;
    padding: 15px 10px;
    font-size: 16px;
    outline: none;
}

.search-btn {
    background-color: #6366f1;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-btn:hover {
    background-color: #4f46e5;
}

.search-tags {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.tag {
    background-color: #e0e7ff;
    color: #4f46e5;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.tag:hover {
    background-color: #4f46e5;
    color: white;
}

/* 分类区域 */
.categories {
    padding: 60px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 40px;
    color: #1e293b;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.category-card {
    background: white;
    border-radius: 12px;
    padding: 25px 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    cursor: pointer;
    border: 1px solid #e2e8f0;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: #6366f1;
}

.category-icon {
    font-size: 32px;
    margin-bottom: 15px;
    color: #6366f1;
}

.category-name {
    font-weight: 600;
    color: #334155;
}

/* 工具区域 */
.tools {
    padding: 60px 0;
    background-color: #f8fafc;
}

.tools-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.tools-filter {
    display: flex;
    gap: 15px;
}

.filter-select {
    padding: 10px 20px;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    background-color: white;
    font-size: 14px;
    color: #475569;
    cursor: pointer;
    outline: none;
}

.filter-select:focus {
    border-color: #6366f1;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.tool-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 1px solid #e2e8f0;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.tool-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid #f1f5f9;
}

.tool-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
}

.tool-info {
    flex: 1;
}

.tool-name {
    font-weight: 700;
    font-size: 18px;
    color: #1e293b;
    margin-bottom: 5px;
}

.tool-category {
    font-size: 14px;
    color: #64748b;
    background-color: #f1f5f9;
    padding: 4px 10px;
    border-radius: 20px;
    display: inline-block;
}

.tool-body {
    padding: 20px;
}

.tool-description {
    color: #64748b;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.6;
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tool-tag {
    font-size: 12px;
    background-color: #f1f5f9;
    color: #475569;
    padding: 4px 10px;
    border-radius: 20px;
}

.tool-footer {
    padding: 15px 20px;
    background-color: #f8fafc;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f1f5f9;
}

.tool-price {
    font-weight: 700;
    color: #10b981;
}

.tool-link {
    text-decoration: none;
    color: #6366f1;
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.tool-link:hover {
    color: #4f46e5;
}

.load-more {
    text-align: center;
}

/* 特色区域 */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: all 0.3s;
    border: 1px solid #e2e8f0;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: #6366f1;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #1e293b;
}

.feature-card p {
    color: #64748b;
    font-size: 14px;
}

/* 页脚 */
.footer {
    background-color: #1e293b;
    color: #cbd5e1;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-brand .logo-icon {
    color: #8b5cf6;
}

.footer-brand .brand-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, #8b5cf6, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-description {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #334155;
    color: #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
}

.social-link:hover {
    background-color: #6366f1;
    color: white;
    transform: translateY(-3px);
}

.footer-section h3 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-link {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: 12px;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-link:hover {
    color: #6366f1;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #334155;
    font-size: 14px;
    color: #94a3b8;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .tools-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .search-box {
        flex-direction: column;
        background: transparent;
        box-shadow: none;
        border: none;
    }
    
    .search-input, .search-btn {
        width: 100%;
        border-radius: 8px;
        margin-bottom: 10px;
    }
    
    .search-icon {
        display: none;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
}