/* 主题变量 */
:root {
    --primary-color: #3a86ff;
    --secondary-color: #8338ec;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --card-bg: #fff;
    --card-border: #eaeaea;
    --card-shadow: rgba(0, 0, 0, 0.1);
    --tag-bg: #e9ecef;
    --tag-color: #495057;
    --free-color: #38b000;
    --freemium-color: #3a86ff;
    --paid-color: #fb5607;
    --editors-pick-color: #ffbe0b;
    --header-bg: linear-gradient(135deg, #3a86ff 0%, #8338ec 100%);
}

/* 暗色主题 */
[data-theme="dark"] {
    --primary-color: #4895ef;
    --secondary-color: #9d4edd;
    --text-color: #e9ecef;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --card-border: #333;
    --card-shadow: rgba(0, 0, 0, 0.3);
    --tag-bg: #2a2a2a;
    --tag-color: #adb5bd;
    --free-color: #52b788;
    --freemium-color: #4895ef;
    --paid-color: #e85d04;
    --editors-pick-color: #faa307;
    --header-bg: linear-gradient(135deg, #4895ef 0%, #9d4edd 100%);
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: var(--header-bg);
    color: white;
    padding: 120px 0 30px;
    text-align: center;
    margin-top: 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" fill-opacity="1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,208C1248,224,1344,192,1392,176L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    z-index: 0;
}

.header-content {
    position: relative;
    z-index: 1;
}

/* 标题样式 */
h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto 30px;
}

/* 统计信息 */
.stats {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 1rem;
    margin-bottom: 20px;
}

.stats strong {
    font-weight: 600;
}

/* 控制区域 */
.controls {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px var(--card-shadow);
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-between;
    align-items: center;
}

/* 搜索区域 */
.search-container {
    flex: 1;
    min-width: 300px;
}

.search-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-size: 16px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(58, 134, 255, 0.2);
}

/* 过滤器 */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-btn {
    padding: 8px 16px;
    background-color: var(--tag-bg);
    color: var(--tag-color);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* 主题切换按钮 */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 工具卡片容器 */
.tools-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

/* 工具卡片 */
.tool-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 10px var(--card-shadow);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid var(--card-border);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--card-shadow);
}

.tool-header {
    display: flex;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--card-border);
}

.tool-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    margin-right: 15px;
    object-fit: contain;
    background-color: rgba(0, 0, 0, 0.03);
    border: 1px solid var(--card-border);
}

.tool-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: var(--text-color);
    line-height: 1.3;
}

.tool-body {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.tool-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

/* 工具定价标签 */
.tool-pricing {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
}

.tool-pricing.free {
    background-color: rgba(56, 176, 0, 0.15);
    color: var(--free-color);
}

.tool-pricing.freemium {
    background-color: rgba(58, 134, 255, 0.15);
    color: var(--freemium-color);
}

.tool-pricing.paid {
    background-color: rgba(251, 86, 7, 0.15);
    color: var(--paid-color);
}

/* 工具评分 */
.tool-rating {
    color: #ffc107;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.tool-rating span {
    margin-left: 5px;
    color: var(--text-color);
    opacity: 0.7;
}

/* 编辑推荐标签 */
.editors-pick {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: rgba(255, 190, 11, 0.2);
    color: var(--editors-pick-color);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 工具描述 */
.tool-description {
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.9;
    flex-grow: 1;
    line-height: 1.6;
}

/* 工具标签 */
.tool-tags {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tool-tag {
    background-color: var(--tag-bg);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    color: var(--tag-color);
    font-weight: 500;
}

/* 工具卡片页脚 */
.tool-footer {
    padding: 20px;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tool-link {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.2s ease;
    gap: 8px;
}

.tool-link:hover {
    background-color: var(--secondary-color);
}

.tool-detail {
    font-size: 13px;
    color: var(--text-color);
    opacity: 0.7;
}

.tool-detail a {
    color: var(--primary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.tool-detail a:hover {
    text-decoration: underline;
}

/* 页码标签 */
.page-badge {
    position: absolute;
    top: -10px;
    left: -10px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* 页脚 */
footer {
    margin-top: 50px;
    padding: 30px 0;
    text-align: center;
    color: var(--text-color);
    opacity: 0.7;
    font-size: 14px;
}

/* 无结果提示 */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px 0;
    color: var(--text-color);
    opacity: 0.7;
    font-size: 1.2rem;
    display: none;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    box-shadow: 0 2px 4px var(--card-shadow);
    z-index: 1000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
}

.navbar .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.navbar .logo:hover {
    color: var(--primary-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-links li a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.2s ease;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

.nav-links li a:hover {
    color: var(--primary-color);
    background-color: rgba(0, 0, 0, 0.05);
}

/* 页脚内容 */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.social-links {
    list-style: none;
    display: flex;
    gap: 15px;
}

.social-links li a {
    color: var(--text-color);
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
    }
    
    .tools-container {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .tool-header {
        padding: 15px;
    }
    
    .tool-icon {
        width: 50px;
        height: 50px;
    }
    
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar .container {
        flex-direction: column;
        padding: 0.5rem;
    }
    
    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        width: 100%;
        padding: 1rem 0;
    }
    
    .nav-links li a {
        display: block;
        width: 100%;
        text-align: center;
        padding: 0.75rem 1rem;
    }
    
    header {
        padding-top: 160px; /* 增加移动端导航栏的空间 */
    }
}

/* 暗色主题导航栏 */
@media (prefers-color-scheme: dark) {
    .navbar {
        background-color: rgba(17, 24, 39, 0.95);
    }
    
    .nav-links li a:hover {
        background-color: rgba(255, 255, 255, 0.05);
    }
}