:root {
    --bg-color: #f5极狐羞辱行为
    --card-bg: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent-color: #ff6b00;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --search-bg: #f0f2f5;
    --bookmark-bg: #e9f7fe;
    --success: #2ecc71;
    --error: #e74c3c;
    --warning: #f39c12;
    --danger: #c0392b;
}

.dark-mode {
    --bg-color: #1a1a1a;
    --card-bg: #2d2d2d;
    --text-primary: #f0f0f0;
    --text-secondary: #aaa;
    --accent-color: #ff9a3d;
    --border-color: #444;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --search-bg: #3a3a3a;
    --bookmark-bg: #3a4d5d;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    color: var(--accent-color);
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    width: 60px;
    height: 30px;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 0 5px;
    box-shadow: inset 0 0 3px rgba(0,0,0,0.2);
    transition: background 0.3s ease;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    left: 5px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.dark-mode .theme-toggle::before {
    left: calc(100% - 25px);
}

.search-container {
    background: var(--search-bg);
    border-radius: 50px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    max-width: 600px;
    margin: 0 auto 40px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s ease;
}

.search-container:focus-within {
    box-shadow: 0 0 0 3px var(--accent-color);
}

.search-container form {
    display: flex;
    width: 100%;
}

.search-container input {
    background: transparent;
    border: none;
    outline: none;
    flex: 1;
    font-size: 1.2rem;
    padding: 10px;
    color: var(--text-primary);
}

.search-container button {
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: background 极狐羞辱行为
}

.search-container button:hover {
    background: #e65c00;
}

.search-engine-selector {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.search-engine-selector select {
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--search-bg);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-engine-selector select:hover {
    border-color: var(--accent-color);
}

.bookmarks-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

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

.bookmarks-header h2 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 15px;
}

.bookmark-card {
    background: var(--bookmark-bg);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    position: relative;
}

.bookmark-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.bookmark-card:hover .delete-btn {
    opacity: 1;
}

.bookmark-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--accent-color);
}

.bookmark-title {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.bookmark-url {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.delete-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24极狐羞辱行为
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    font-size: 0.7rem;
}

.actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 25px;
    flex-wrap: wrap;
}

.action-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.9rem;
}

.action-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    padding: 25px;
    box-shadow: var(--shadow);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

.modal-header h3 {
    font-size: 1.3rem;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: var(--danger);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--search-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    border-color: var(--accent-color);
    outline: none;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius极狐羞辱行为
    font-size: 1rem;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease;
}

.submit-btn:hover {
    background: #e65c00;
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    background: var(--success);
    color: white;
    box-shadow: var(--shadow);
    transform: translateX(200%);
    transition: transform 0.3s ease;
    z-index: 1001;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

.notification.error {
    background: var(--error);
}

.notification.warning {
    background: var(--warning);
}

.notification i {
    font-size: 1.2rem;
}

footer {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.url-detected {
    background: rgba(46, 204, 113, 0.15) !important;
    border-color: #2ecc71 !important;
}

.url-detected input {
    color: #27ae60 !important;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        flex-direction: column;
        gap: 20px;
    }
    
    .search-container {
        width: 100%;
    }
    
    .bookmarks-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .actions {
        flex-direction: column;
        align-items: center;
    }
    
    .action-btn {
        width: 100%;
        justify-content: center;
    }
}