* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --text: #333333;
    --primary: #e91e63;
    --secondary: #f06292;
    --card-bg: #f9f9f9;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --radius: 16px;
}

[data-theme="dark"] {
    --bg: #1a1a2e;
    --text: #e0e0e0;
    --card-bg: #16213e;
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
}

[data-template="tech"] {
    --primary: #00bcd4;
    --secondary: #4dd0e1;
}

[data-template="food"] {
    --primary: #ff5722;
    --secondary: #ff8a65;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: all 0.3s ease;
}

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

/* 导航栏 */
.navbar {
    background: var(--card-bg);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.3s;
}

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

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-actions button {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: 0.5rem;
}

/* 搜索筛选 */
.search-filter {
    padding: 2rem 0;
    background: var(--card-bg);
}

.search-bar {
    display: flex;
    align-items: center;
    background: var(--bg);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

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

.search-bar input {
    border: none;
    background: transparent;
    width: 100%;
    padding: 0.5rem;
    outline: none;
    color: var(--text);
}

.filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filters select {
    padding: 0.5rem 1rem;
    border-radius: 50px;
    border: 1px solid var(--primary);
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
}

/* 卡片网格 */
.services-grid {
    padding: 2rem 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 1rem;
}

.card-body h3 {
    margin-bottom: 0.5rem;
}

.price {
    color: var(--primary);
    font-weight: bold;
    font-size: 1.2rem;
}

.rating {
    color: #ffc107;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--primary);
    color: #fff;
    border-radius: 50px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}

.btn:hover {
    background: var(--secondary);
}

.share-btn {
    background: var(--secondary);
}

/* Hero */
.hero {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
}

.hero h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* 用户评价 */
.testimonials {
    padding: 2rem 0;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.testimonial-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.author {
    margin-top: 1rem;
    font-style: italic;
    color: var(--primary);
}

/* 页脚 */
footer {
    background: var(--card-bg);
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

footer a {
    color: var(--primary);
    text-decoration: none;
}

.social-links a {
    margin: 0 0.5rem;
    font-size: 1.5rem;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
}

.modal-content {
    background: var(--bg);
    margin: 15% auto;
    padding: 2rem;
    border-radius: var(--radius);
    max-width: 400px;
    box-shadow: var(--shadow);
}

.close {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 管理后台 */
.admin-panel {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
}

.admin-panel section {
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.admin-panel input, .admin-panel select, .admin-panel textarea {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 8px;
}

.admin-panel table {
    width: 100%;
    border-collapse: collapse;
}

.admin-panel th, .admin-panel td {
    padding: 0.5rem;
    border-bottom: 1px solid #ccc;
    text-align: left;
}

.admin-login {
    max-width: 400px;
    margin: 5rem auto;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.admin-login input {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 8px;
}

.error {
    color: red;
}

.msg {
    color: green;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        margin-top: 1rem;
    }
    .nav-links.active {
        display: flex;
    }
    .nav-toggle {
        display: block;
    }
    .filters {
        flex-direction: column;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
}

/* 热力图占位 */
.heatmap {
    padding: 2rem 0;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.heatmap-cell {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 4px;
    background: #e0e0e0;
}

.heatmap-cell.high {
    background: var(--primary);
}

.heatmap-cell.medium {
    background: var(--secondary);
}

.heatmap-cell.low {
    background: #ffcdd2;
}