/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #165DFF;
    --primary-dark: #0E42B2;
    --primary-light: #E8F0FE;
    --secondary-color: #00B42A;
    --secondary-dark: #008A20;
    --secondary-light: #E8F8EE;
    --accent-color: #FF7D00;
    --accent-dark: #E06A00;
    --accent-light: #FFF0E3;
    --danger-color: #F53F3F;
    --danger-dark: #D32D2D;
    --danger-light: #FFECE8;
    --info-color: #86909C;
    --info-dark: #4E5969;
    --info-light: #F2F3F5;
    --text-primary: #1D2129;
    --text-secondary: #4E5969;
    --text-tertiary: #86909C;
    --background-color: #F5F7FA;
    --white: #FFFFFF;
    --border-color: #E5E6EB;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

body {
    background-color: var(--background-color);
    color: var(--text-primary);
    min-height: 100vh;
}

/* APP风格布局 */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background-color: var(--white);
    padding: 28px 20px 24px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.app-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.app-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.content-section {
    flex: 1;
    margin: 20px;
    padding-bottom: 100px;
}

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

.card h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--background-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* 搜索样式 */
.search-section {
    margin: 16px;
    padding: 24px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
    border-top: 4px solid var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 480px) {
    .search-section {
        margin: 12px;
        padding: 12px;
        padding-bottom: 40px;
    }
    
    .advanced-search-options {
        margin-top: 12px;
        margin-bottom: 24px;
        padding: 14px;
    }
    
    .advanced-search-fields {
        gap: 8px;
        min-width: 400px;
    }
    
    .form-group {
        flex: 1 1 25%;
        min-width: 80px;
    }
    
    .form-group select {
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .form-group label {
        font-size: 12px;
    }
    
    .button-group {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    padding-bottom: 200px;
}

.search-input {
    position: relative;
    display: flex;
    align-items: center;
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 0 20px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    height: 56px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.search-input:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--primary-light);
    transform: translateY(-1px);
}

.search-input i {
    color: var(--text-tertiary);
    margin-right: 12px;
}

.search-input input {
    flex: 1;
    padding: 14px 0;
    border: none;
    background-color: transparent;
    font-size: 14px;
    color: var(--text-primary);
    outline: none;
}

.search-input input::placeholder {
    color: var(--text-tertiary);
}

.button-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 8px;
    justify-content: center;
}

/* 自动补全样式 */
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-height: 300px;
    overflow-y: auto;
    display: none;
    margin-top: 8px;
}

.autocomplete-dropdown.show {
    display: block;
}

.autocomplete-item {
    padding: 14px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

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

.autocomplete-item:hover {
    background-color: var(--background-color);
    color: var(--primary-color);
}

.autocomplete-item.highlighted {
    background-color: var(--primary-light);
    color: var(--primary-color);
}



.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translateY(-50%) rotate(0deg); }
    100% { transform: translateY(-50%) rotate(360deg); }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px) scaleY(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scaleY(1);
    }
}

/* 确保高级搜索选项与搜索框宽度一致 */
.search-form {
    position: relative;
}

.advanced-search-options h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.advanced-search-options h3::before {
    content: "\f044";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--primary-color);
}

.advanced-search-fields {
    display: flex;
    gap: 12px;
    flex-wrap: nowrap;
    width: 100%;
    min-width: 400px;
    margin-bottom: 16px;
}

/* 表单样式 */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1 1 25%;
    min-width: 100px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    background-color: var(--white);
    transition: var(--transition);
}

.form-group input[type="file"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    background-color: var(--white);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    z-index: 1001;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%23666"><path d="M8 12l-6-6 1.41-1.41L8 9.17l4.59-4.58L14 6z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* 响应式设计 */
@media (max-width: 480px) {
    .advanced-search-fields {
        gap: 10px;
    }
    
    .form-group select {
        padding: 10px 12px;
        font-size: 13px;
    }
}

/* 结果区域样式 */
.results-section {
    margin: 20px 16px 100px;
    padding: 24px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--secondary-color);
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-section h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

th, td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    transition: var(--transition);
}

th {
    background-color: var(--background-color);
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

tr {
    transition: var(--transition);
}

tr:hover {
    background-color: var(--primary-light);
    transform: translateX(5px);
}

tr:last-child td {
    border-bottom: none;
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 100px 20px;
    color: var(--text-tertiary);
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    margin: 20px 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
    }
}

.empty-state i {
    font-size: 80px;
    margin-bottom: 24px;
    color: var(--primary-light);
    transition: var(--transition);
}

.empty-state:hover i {
    transform: rotate(15deg) scale(1.1);
    color: var(--primary-color);
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-weight: 600;
}

.empty-state p {
    font-size: 14px;
    line-height: 1.6;
    max-width: 400px;
    margin: 0 auto;
}

/* 详细信息样式 */
.details-container {
    padding: 20px;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    margin: 10px 0;
    animation: slideDown 0.3s ease-out;
}

.details-container h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: var(--white);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.detail-value:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* 表格头部筛选样式 */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.results-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 表格头部筛选框样式 */
table th {
    position: relative;
    text-align: center;
}

table th form {
    margin-bottom: 8px;
}

table th select {
    width: 100%;
    padding: 4px 8px;
    font-size: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

table th select:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    table th select {
        padding: 3px 6px;
        font-size: 11px;
    }
    
    table th form {
        margin-bottom: 4px;
    }
}

/* 结果项样式 */
.result-item {
    cursor: pointer;
    transition: var(--transition);
}

.result-item:hover {
    background-color: var(--primary-light) !important;
}

.result-item.active {
    background-color: var(--primary-light) !important;
    font-weight: 500;
}

.details-row {
    animation: slideDown 0.3s ease-out;
}

/* 音频播放器样式 */
.audio-player {
    margin-bottom: 24px;
}

audio {
    width: 100%;
    margin-bottom: 16px;
}

/* 文本内容样式 */
.text-content {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    padding: 16px;
    white-space: pre-wrap;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
}

/* 文件列表样式 */
.file-list {
    margin-top: 24px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.file-item:hover {
    background-color: var(--background-color);
}

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

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

.file-icon {
    font-size: 20px;
    color: var(--primary-color);
}

.file-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.file-size {
    font-size: 12px;
    color: var(--text-tertiary);
}

.file-actions {
    display: flex;
    gap: 8px;
}

/* 消息提示样式 */
.message {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 500;
}

.message.success {
    background-color: var(--secondary-light);
    color: var(--secondary-dark);
    border: 1px solid var(--secondary-color);
}

.message.error {
    background-color: var(--danger-light);
    color: var(--danger-dark);
    border: 1px solid var(--danger-color);
}

/* 底部导航样式 */
.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    padding: 6px 12px;
    z-index: 100;
}

.bottom-buttons {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 2px;
}

.bottom-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    padding: 2px 6px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-secondary);
}

.bottom-button i {
    font-size: 16px;
}

.bottom-button span {
    font-size: 10px;
    font-weight: 500;
}

.bottom-button.active {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.bottom-button:hover {
    background-color: var(--background-color);
    transform: translateY(-2px);
}

.bottom-button i {
    font-size: 24px;
}

.bottom-button span {
    font-size: 12px;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .app-header {
        padding: 24px 16px 20px;
    }
    
    .app-header h1 {
        font-size: 22px;
    }
    
    .content-section {
        margin: 16px;
        padding-bottom: 100px;
    }
    
    .search-section {
        margin: 16px;
        padding: 16px;
    }
    
    .results-section {
        margin: 0 16px 100px;
        padding: 16px;
    }
    
    .card {
        padding: 16px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .button-group .btn {
        width: 100%;
        justify-content: center;
    }
    
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    th, td {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .file-actions {
        align-self: flex-end;
    }
}

@media (min-width: 769px) {
    .app-container {
        max-width: 800px;
        margin: 0 auto;
        min-height: 100vh;
    }
    
    .search-form {
        flex-direction: row;
        align-items: center;
    }
    
    .search-input {
        flex: 1;
    }
    
    .button-group {
        flex-direction: row;
    }
    
    .advanced-search-fields {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .form-group {
        flex: 1;
        min-width: 180px;
    }
}