@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700&family=ZCOOL+XiaoWei&display=swap');

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

:root {
    --primary: #1976d2;
    --primary-dark: #0d47a1;
    --accent: #ff5722;
    --bg-light: #e3f2fd;
    --bg-white: #ffffff;
    --text-dark: #0d47a1;
    --text-gray: #546e7a;
    --shadow: 0 4px 12px rgba(25, 118, 210, 0.15);
    --shadow-hover: 0 8px 24px rgba(25, 118, 210, 0.25);
    --radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

/* Header */
.site-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
}

.main-nav ul {
    display: flex;
    gap: 5px;
}

.main-nav a {
    color: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 60px 0 50px;
    text-align: center;
}

.hero h1 {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 42px;
    margin-bottom: 15px;
}

.hero p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    background: #fff;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.search-box input {
    flex: 1;
    border: none;
    padding: 15px 25px;
    font-size: 16px;
    font-family: 'Noto Sans SC', sans-serif;
    outline: none;
}

.search-box button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 0 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background: #e64a19;
}

.banner-img {
    max-width: 1200px;
    margin: 30px auto 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.banner-img img {
    width: 100%;
    height: auto;
    display: block;
}

/* Section Titles */
.section {
    padding: 50px 0;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary);
}

.section-title h2 {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 28px;
    color: var(--primary-dark);
}

.section-title .more {
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
}

.section-title .more:hover {
    color: var(--accent);
}

/* Category Cards */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 25px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent);
}

.category-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 28px;
    transition: var(--transition);
}

.category-card:hover .category-icon {
    background: var(--primary);
    color: #fff;
}

.category-card h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.category-card p {
    font-size: 13px;
    color: var(--text-gray);
}

/* Site Cards */
.site-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.site-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.site-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.site-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.site-info h3 {
    font-size: 16px;
    color: var(--primary-dark);
    margin-bottom: 5px;
}

.site-info h3 a:hover {
    color: var(--accent);
}

.site-info p {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 8px;
}

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

.site-tag {
    background: var(--bg-light);
    color: var(--primary);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
}

/* Category Group */
.category-group {
    margin-bottom: 40px;
}

.category-group-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-light);
}

.category-group-header h3 {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 22px;
    color: var(--primary-dark);
}

.category-group-header .count {
    background: var(--accent);
    color: #fff;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
}

/* Search Center */
.search-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.search-hero h1 {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 36px;
    margin-bottom: 20px;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 25px;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: none;
    padding: 10px 25px;
    border-radius: 25px;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Noto Sans SC', sans-serif;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--accent);
}

.hot-keywords {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.hot-keywords h3 {
    color: var(--primary-dark);
    margin-bottom: 15px;
    font-size: 18px;
}

.keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.keyword-item {
    background: var(--bg-light);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    transition: var(--transition);
    cursor: pointer;
}

.keyword-item:hover {
    background: var(--primary);
    color: #fff;
}

.keyword-item.hot::after {
    content: '热';
    background: var(--accent);
    color: #fff;
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 8px;
    margin-left: 5px;
}

/* News */
.news-list {
    display: grid;
    gap: 20px;
}

.news-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 20px;
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-hover);
}

.news-date {
    background: var(--bg-light);
    color: var(--primary-dark);
    padding: 10px 15px;
    border-radius: 8px;
    text-align: center;
    flex-shrink: 0;
    min-width: 70px;
}

.news-date .day {
    font-size: 24px;
    font-weight: 700;
    display: block;
}

.news-date .month {
    font-size: 13px;
}

.news-content h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.news-content h3 a:hover {
    color: var(--accent);
}

.news-content p {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 10px;
}

.news-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--text-gray);
}

/* About */
.about-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.about-hero h1 {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 36px;
    margin-bottom: 15px;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.about-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.about-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.about-card h2 {
    color: var(--primary-dark);
    font-size: 22px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-light);
}

.about-card p {
    color: var(--text-gray);
    margin-bottom: 12px;
    line-height: 1.8;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.team-member {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.team-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 32px;
    font-weight: 700;
}

.team-member h3 {
    color: var(--primary-dark);
    margin-bottom: 5px;
}

.team-member .role {
    color: var(--accent);
    font-size: 14px;
    margin-bottom: 10px;
}

.team-member p {
    color: var(--text-gray);
    font-size: 13px;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 35px;
    box-shadow: var(--shadow);
}

.contact-card h2 {
    color: var(--primary-dark);
    font-size: 22px;
    margin-bottom: 20px;
}

.contact-info {
    margin-bottom: 15px;
}

.contact-info label {
    display: block;
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 5px;
}

.contact-info input,
.contact-info textarea,
.contact-info select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--bg-light);
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Noto Sans SC', sans-serif;
    transition: var(--transition);
    outline: none;
}

.contact-info input:focus,
.contact-info textarea:focus,
.contact-info select:focus {
    border-color: var(--primary);
}

.btn {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Noto Sans SC', sans-serif;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--accent);
}

.btn-accent:hover {
    background: #e64a19;
}

/* Footer */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.9);
    padding: 50px 0 0;
    margin-top: 50px;
}

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

.footer-col h4 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
    font-family: 'ZCOOL XiaoWei', serif;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

/* Recommendation Cards */
.recommend-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--accent);
}

.recommend-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateX(5px);
}

.recommend-card h3 {
    color: var(--primary-dark);
    font-size: 18px;
    margin-bottom: 10px;
}

.recommend-card .reason {
    background: var(--bg-light);
    color: var(--text-dark);
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
}

.recommend-badge {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }

    .nav-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        width: 100%;
        margin-top: 15px;
    }

    .main-nav.open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 5px;
    }

    .main-nav a {
        display: block;
        padding: 12px 16px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 15px;
    }

    .search-box {
        flex-direction: column;
        border-radius: var(--radius);
    }

    .search-box button {
        padding: 15px;
    }

    .section-title h2 {
        font-size: 22px;
    }

    .site-grid,
    .category-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .news-item {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 40px 0 30px;
    }

    .hero h1 {
        font-size: 24px;
    }

    .section {
        padding: 35px 0;
    }

    .site-grid,
    .category-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}