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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
    padding-bottom: 40px;
    transition: all 0.3s ease;
    color: #2d3748;
}

body.dark-mode {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    color: #e2e8f0;
}

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

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 20px;
    position: relative;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
    z-index: 10;
}

body.dark-mode header {
    background: rgba(26, 32, 44, 0.9);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    color: #2b6cb0;
    font-weight: 700;
    letter-spacing: -0.5px;
    transition: color 0.3s ease;
}

body.dark-mode header h1 {
    color: #63b3ed;
}

header p {
    font-size: 1rem;
    color: #718096;
    transition: color 0.3s ease;
}

body.dark-mode header p {
    color: #a0aec0;
}

/* 搜索框样式 */
.search-container {
    position: relative;
    max-width: 600px;
    margin: 20px auto 0;
}

.search-input {
    width: 100%;
    padding: 12px 20px;
    font-size: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    background: white;
    transition: all 0.3s ease;
    outline: none;
}

.search-input:focus {
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

body.dark-mode .search-input {
    background: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
}

body.dark-mode .search-input:focus {
    border-color: #63b3ed;
    box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.1);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    max-height: 70vh;
    overflow-y: auto;
    z-index: 9999;
    display: none;
    padding: 15px;
    border: 2px solid #e2e8f0;
}

body.dark-mode .search-results {
    background: #2d3748;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    border-color: #4a5568;
}

/* body.search-active {
    padding-bottom: 400px;
} */


.search-result-section {
    margin-bottom: 20px;
}

.search-result-section:last-child {
    margin-bottom: 0;
}

.search-result-title {
    font-size: 1rem;
    color: #4a5568;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e2e8f0;
}

body.dark-mode .search-result-title {
    color: #a0aec0;
    border-bottom-color: #4a5568;
}

.no-results {
    text-align: center;
    color: #a0aec0;
    padding: 20px;
}

.theme-toggle {
    position: absolute;
    right: 65px;
    top: 20px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border-color: #4299e1;
}

body.dark-mode .theme-toggle {
    background: #2d3748;
    border-color: #4a5568;
}

body.dark-mode .theme-toggle:hover {
    border-color: #63b3ed;
}

/* 视图切换按钮 */
.view-toggle {
    position: absolute;
    right: 15px;
    top: 20px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.view-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border-color: #4299e1;
}

body.dark-mode .view-toggle {
    background: #2d3748;
    border-color: #4a5568;
}

body.dark-mode .view-toggle:hover {
    border-color: #63b3ed;
}

.view-tooltip {
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
    z-index: 1000;
}

.view-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid rgba(0, 0, 0, 0.85);
}

.view-toggle:hover .view-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* 视图切换下拉菜单 */
.view-menu {
    position: absolute;
    top: 70px;
    right: 15px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 8px 0;
    min-width: 150px;
    z-index: 101;
    display: none;
}

body.dark-mode .view-menu {
    background: #2d3748;
    border-color: #4a5568;
}

.view-menu.show {
    display: block;
}

.view-menu-item {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    color: #2d3748;
    text-decoration: none;
    transition: background-color 0.2s ease;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    font-size: 0.9em;
    text-align: left;
}

body.dark-mode .view-menu-item {
    color: #e2e8f0;
}

.view-menu-item:hover {
    background-color: #f7fafc;
}

body.dark-mode .view-menu-item:hover {
    background-color: #4a5568;
}

.view-menu-item.active {
    background-color: #4299e1;
    color: white;
}

.view-menu-icon {
    margin-right: 10px;
    font-size: 1.1em;
}

.theme-tooltip {
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
    z-index: 1000;
}

.theme-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid rgba(0, 0, 0, 0.85);
}

.theme-tooltip.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.theme-toggle:hover .theme-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.section {
    margin-bottom: 35px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
}

body.dark-mode .section {
    background: rgba(26, 32, 44, 0.95);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    gap: 15px;
}

.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title {
    color: #2b6cb0;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    transition: color 0.3s ease;
}

body.dark-mode .section-title {
    color: #63b3ed;
}

.section-search {
    padding: 8px 15px;
    font-size: 0.9rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: white;
    transition: all 0.3s ease;
    outline: none;
    min-width: 200px;
}

.download-btn {
    padding: 6px 14px;
    font-size: 0.85rem;
    border: 2px solid #4299e1;
    border-radius: 8px;
    background: white;
    color: #4299e1;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    font-weight: 500;
    white-space: nowrap;
}

.download-btn:hover {
    background: #4299e1;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(66, 153, 225, 0.3);
}

body.dark-mode .download-btn {
    background: #2d3748;
    border-color: #63b3ed;
    color: #63b3ed;
}

body.dark-mode .download-btn:hover {
    background: #63b3ed;
    color: #2d3748;
}

.section-search:focus {
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

body.dark-mode .section-search {
    background: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
}

body.dark-mode .section-search:focus {
    border-color: #63b3ed;
    box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.1);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 18px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

body.dark-mode .card {
    background: #2d3748;
    border-color: #4a5568;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4299e1, #667eea);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

body.dark-mode .card::before {
    background: linear-gradient(90deg, #63b3ed, #90cdf4);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    border-color: #4299e1;
}

body.dark-mode .card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    border-color: #63b3ed;
}

.card:hover::before {
    transform: scaleX(1);
}

.card-header {
    margin-bottom: 12px;
}

.card-title {
    font-size: 1.15rem;
    color: #2d3748;
    margin-bottom: 8px;
    font-weight: 600;
    transition: color 0.3s ease;
}

body.dark-mode .card-title {
    color: #e2e8f0;
}

.card-link {
    display: inline-block;
    color: #4299e1;
    text-decoration: none;
    font-size: 0.85rem;
    word-break: break-all;
    transition: color 0.2s ease;
    font-weight: 500;
}

body.dark-mode .card-link {
    color: #63b3ed;
}

.card-link:hover {
    color: #2b6cb0;
    text-decoration: underline;
}

body.dark-mode .card-link:hover {
    color: #90cdf4;
}

.card-description {
    color: #718096;
    line-height: 1.6;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

body.dark-mode .card-description {
    color: #a0aec0;
}

.empty-state {
    text-align: center;
    color: #a0aec0;
    padding: 40px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    border: 2px dashed #cbd5e0;
    transition: all 0.3s ease;
}

body.dark-mode .empty-state {
    background: rgba(45, 55, 72, 0.5);
    border-color: #4a5568;
    color: #718096;
}

.empty-state p {
    font-size: 1rem;
}

footer {
    text-align: center;
    color: #718096;
    margin-top: 50px;
    padding: 30px 20px;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
}

body.dark-mode footer {
    background: rgba(26, 32, 44, 0.9);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    color: #a0aec0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.copyright {
    margin-bottom: 10px;
    color: #4a5568;
    transition: color 0.3s ease;
}

body.dark-mode .copyright {
    color: #a0aec0;
}

.beian-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.beian-link {
    color: #718096;
    text-decoration: none;
    transition: color 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

body.dark-mode .beian-link {
    color: #a0aec0;
}

.beian-link:hover {
    color: #4299e1;
}

body.dark-mode .beian-link:hover {
    color: #63b3ed;
}

.beian-divider {
    color: #cbd5e0;
    user-select: none;
    transition: color 0.3s ease;
}

body.dark-mode .beian-divider {
    color: #4a5568;
}

.beian-icon {
    vertical-align: middle;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.3rem;
    }

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

    .card {
        padding: 18px;
    }

    .theme-toggle {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
        right: 65px;
        top: 10px;
    }

    .theme-tooltip {
        font-size: 0.75rem;
        padding: 5px 10px;
        bottom: -32px;
    }

    .view-toggle {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
        right: 10px;
        top: 10px;
    }

    .view-tooltip {
        font-size: 0.75rem;
        padding: 5px 10px;
        bottom: -32px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-search {
        width: 100%;
    }

    footer {
        padding: 20px 15px;
        font-size: 0.85rem;
    }

    .beian-info {
        flex-direction: column;
        gap: 8px;
    }

    .beian-divider {
        display: none;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    header p {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .card-title {
        font-size: 1.05rem;
    }
    
    footer {
        padding: 15px 10px;
        font-size: 0.8rem;
    }
}