/* 全局变量 - 温暖舒适的配色 */
:root {
    --primary-color: #7D8E95;
    --secondary-color: #FFBB98;
    --accent-color: #FFBB98;
    --bg-start: #FBE0C3;
    --bg-end: #f5e5d3;
    --text-primary: #344648;
    --text-secondary: #7D8E95;
    --glass-bg: rgba(255, 255, 255, 0.35);
    --glass-border: rgba(255, 235, 215, 0.5);
    --shadow-light: rgba(52, 70, 72, 0.08);
    --shadow-medium: rgba(52, 70, 72, 0.12);
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
}

/* 动态背景 */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-start) 0%, var(--bg-end) 100%);
    z-index: -1;
}

.gradient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.blob1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #FFBB98 0%, #FBE0C3 100%);
    top: -150px;
    left: -150px;
    animation-delay: 0s;
}

.blob2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #7D8E95 0%, #FFBB98 100%);
    bottom: -100px;
    right: -100px;
    animation-delay: 5s;
}

.blob3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #FBE0C3 0%, #7D8E95 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
}

/* 液体玻璃效果卡片 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--shadow-light);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px var(--shadow-medium);
}

/* 搜索区域 */
.search-section {
    padding: 24px;
    margin-bottom: 24px;
}

.title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 搜索引擎标签 */
.search-engine-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid transparent;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

.tab-btn.active {
    background: rgba(255, 255, 255, 0.5);
    border-color: var(--secondary-color);
    color: var(--text-primary);
}

.tab-btn svg {
    flex-shrink: 0;
}

/* 搜索框 */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 14px;
    padding: 12px 16px;
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--secondary-color);
    box-shadow: 0 4px 20px rgba(255, 187, 152, 0.3);
}

.search-icon {
    flex-shrink: 0;
    color: var(--text-secondary);
    margin-right: 12px;
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1.1rem;
    color: var(--text-primary);
    outline: none;
}

.search-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.search-btn {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    color: white;
    margin-left: 12px;
}

.search-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(255, 187, 152, 0.4);
}

.search-btn:active {
    transform: scale(0.95);
}

/* 搜索建议 */
.suggestions {
    margin-top: 12px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: var(--transition);
}

.suggestions.show {
    max-height: 400px;
    opacity: 1;
}

.suggestion-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background: rgba(255, 255, 255, 0.4);
}

.suggestion-item svg {
    flex-shrink: 0;
    color: var(--text-secondary);
}

/* 书签区域 */
.bookmarks-section {
    margin-bottom: 24px;
}

.category-section {
    margin-bottom: 28px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.category-icon {
    font-size: 1.4rem;
    line-height: 1;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 12px;
}

.bookmark-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 12px;
    cursor: pointer;
    text-decoration: none;
    color: var(--text-primary);
    min-height: 100px;
    position: relative;
    overflow: hidden;
}

.bookmark-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 187, 152, 0.15) 0%, rgba(125, 142, 149, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.bookmark-card:hover::before {
    opacity: 1;
}

.bookmark-icon {
    width: 36px;
    height: 36px;
    margin-bottom: 8px;
    border-radius: 10px;
    object-fit: cover;
    transition: var(--transition);
}

.bookmark-emoji {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: rgba(255, 255, 255, 0.3);
}

.bookmark-card:hover .bookmark-icon {
    transform: scale(1.1);
}

.bookmark-name {
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    word-break: break-word;
    line-height: 1.3;
}

/* 添加书签按钮 */
.add-bookmark-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 12px;
    border: 2px dashed var(--glass-border);
    background: rgba(255, 255, 255, 0.15);
    cursor: pointer;
    color: var(--text-secondary);
    min-height: 100px;
    transition: var(--transition);
}

.add-bookmark-btn:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.add-bookmark-btn svg {
    opacity: 0.6;
    width: 20px;
    height: 20px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    width: 90%;
    max-width: 500px;
    padding: 40px;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid transparent;
    border-radius: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.form-input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(255, 187, 152, 0.3);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn {
    flex: 1;
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 187, 152, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.4);
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 16px 12px;
    }

    .search-section {
        padding: 16px;
    }

    .title {
        font-size: 1.5rem;
    }

    .bookmarks-grid {
        grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
        gap: 10px;
    }

    .bookmark-card {
        padding: 12px 8px;
        min-height: 90px;
    }

    .bookmark-icon {
        width: 28px;
        height: 28px;
    }

    .bookmark-name {
        font-size: 0.75rem;
    }

    .search-engine-tabs {
        gap: 6px;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    .modal-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 1.3rem;
        margin-bottom: 16px;
    }

    .search-box {
        padding: 10px 12px;
    }

    .search-input {
        font-size: 0.95rem;
    }

    .bookmarks-grid {
        grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
        gap: 8px;
    }

    .tab-btn span {
        display: none;
    }

    .tab-btn {
        padding: 8px;
    }
    
    .category-section {
        margin-bottom: 20px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: rgba(125, 142, 149, 0.5);
    border-radius: 10px;
    transition: var(--transition);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(125, 142, 149, 0.7);
}

/* 选中文本颜色 */
::selection {
    background: rgba(255, 187, 152, 0.4);
    color: var(--text-primary);
}