/* 基础样式设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #42b883;
    --secondary-color: #347474;
    --background-color: #f8f9fa;
    --card-background: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
    --hover-color: #e9f7f2;
    --active-color: #d1f0e4;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --sidebar-width: 250px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    display: flex;
}

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

.sidebar {
    width: var(--sidebar-width);
    background-color: white;
    height: 100vh;
    border-right: 1px solid #e0e0e0;
    padding: 20px 0;
}

.main-content {
    flex: 1;
    padding: 20px;
    max-width: calc(100% - var(--sidebar-width));
}

.chat-container {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 20px;
}

/* 头部样式 */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.logo-container h1 {
    color: var(--primary-color);
    font-size: 24px;
    font-weight: 600;
}

nav {
    display: flex;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

nav a:hover {
    background-color: var(--hover-color);
}

nav a.active {
    background-color: var(--active-color);
    color: var(--primary-color);
    font-weight: 500;
}

/* 卡片样式 */
.card {
    background: var(--card-background);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

/* 表单样式 */
.record-form, .status-match {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    margin-bottom: 30px;
}

.record-form h2, .status-match h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 24px;
}

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

textarea,
input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    font-size: 16px;
    background: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

textarea:focus,
input[type="text"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(66, 184, 131, 0.1);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

button {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-1px);
}

/* 知识库列表样式 */
.question-item {
    padding: 20px;
    margin-bottom: 16px;
    border-radius: var(--border-radius);
    background: var(--card-background);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    margin: 4px;
    border-radius: 16px;
    background-color: rgba(66, 184, 131, 0.1);
    color: var(--primary-color);
    font-size: 14px;
}

/* 回顾页面样式 */
.review-content, .library-content {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
}

.review-card {
    background-color: var(--hover-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
}

.controls, .auto-review-controls {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.tags {
    margin-top: 15px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-section, .record-form, .status-match {
        padding: 20px;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    nav {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* 模态框样式优化 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1001;
}

.modal-content {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    padding: 30px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.cancel-btn {
    background-color: #f8f9fa;
    color: #333;
    border: 1px solid #ddd;
}

.save-btn {
    background-color: var(--primary-color);
}

/* 按钮样式区分 */
.delete-btn {
    background-color: #FF3B30;
}

.edit-btn {
    background-color: #30D158;
}

/* 加载动画 */
.loading {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 数据管理样式 */
.data-management {
    margin-bottom: 20px;
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.import-btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

.import-btn:hover {
    background-color: #2a5f5f;
}

/* 提示消息样式 */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 4px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    opacity: 1;
    transition: opacity 0.3s;
    z-index: 1000;
}

.toast.error {
    background-color: #e74c3c;
}

.toast.success {
    background-color: var(--primary-color);
}

/* 自动回顾样式 */
.auto-review {
    margin-top: 20px;
}

.auto-review h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.countdown {
    margin-left: 10px;
    padding: 5px 10px;
    background-color: var(--hover-color);
    border-radius: 4px;
    font-weight: bold;
}

#startAutoReview.active {
    background-color: #FF3B30;
}

/* 数据管理样式 */
.data-management {
    margin-bottom: 20px;
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.export-btn {
    background-color: #30D158;
}

.import-btn {
    background-color: #5856D6;
    color: white;
    padding: 12px 24px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
}

.import-btn:hover {
    background-color: #4a49b3;
    transform: translateY(-1px);
}

/* 提示消息样式 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-background);
    padding: 12px 24px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    z-index: 1000;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translate(-50%, 100%);
        opacity: 0;
    }
    to {
        transform: translate(-50%, 0);
        opacity: 1;
    }
}

/* 自动回顾样式 */
.auto-review {
    margin-top: 20px;
    text-align: center;
}

.auto-review-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 12px;
}

.auto-review input[type="number"] {
    width: 100px;
    padding: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    text-align: center;
}

.countdown {
    min-width: 60px;
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-weight: 500;
    display: none;
}

#startAutoReview.active {
    background-color: #FF3B30;
}

/* 数据管理样式 */
.data-management {
    margin-bottom: 20px;
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.export-btn {
    background-color: #30D158;
}

.import-btn {
    background-color: #5856D6;
    color: white;
    padding: 12px 24px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
}

.import-btn:hover {
    background-color: #4a49b3;
    transform: translateY(-1px);
}

/* 提示消息样式 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-background);
    padding: 12px 24px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    z-index: 1000;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translate(-50%, 100%);
        opacity: 0;
    }
    to {
        transform: translate(-50%, 0);
        opacity: 1;
    }
}

/* 自动回顾样式 */
.auto-review {
    margin-top: 20px;
    text-align: center;
}

.auto-review-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 12px;
}

.auto-review input[type="number"] {
    width: 100px;
    padding: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    text-align: center;
}

.countdown {
    min-width: 60px;
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-weight: 500;
    display: none;
}

#startAutoReview.active {
    background-color: #FF3B30;
}

/* 添加自动隐藏消息的样式 */
#autoHideMessage {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 20px;
    border-radius: 5px;
    z-index: 9999;
    font-size: 16px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    transition: opacity 0.5s;
}

.success-message {
    background-color: #4CAF50;
    color: white;
}

.error-message {
    background-color: #f44336;
    color: white;
}