/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

/* 容器 */
.container {
    width: 100%;
    min-height: 100vh;
    position: relative;
}

/* Language switcher */
.language-switcher {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 1000;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #ffffff;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    color: #333;
    cursor: pointer;
}

.lang-btn i { color: #666; font-size: 0.95rem; }

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: #fff;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    min-width: 160px;
    display: none;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    cursor: pointer;
}

.lang-option:hover { background: #f7f9fb; }
.lang-option.active { background: #ecf9f1; }
.lang-flag { width: 18px; }
.lang-name { font-size: 0.95rem; color: #333; }

/* 顶部网格装饰 */
.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 300px;
    background-image: 
        linear-gradient(90deg, rgba(173, 216, 230, 0.1) 1px, transparent 1px),
        linear-gradient(rgba(173, 216, 230, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: 0 0;
    z-index: 1;
}

/* 主内容区域 - 登录页面样式 */
.main-content-login {
    position: relative;
    z-index: 2;
    max-width: 400px;
    margin: 0 auto;
    padding: 40px 20px 40px;
    text-align: center;
}

/* Logo容器 */
.logo-container {
    margin-bottom: 30px;
    margin-top: 20px;
    position: relative;
    z-index: 10;
}

.logo-image {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 移除悬停效果 */

.logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    background: transparent;
}

/* 移除悬停图片效果 */

/* 移除所有动画效果 */

/* SVG Logo样式已在上方定义，移除旧的CSS logo样式 */

/* 标题区域 */
.header {
    margin-bottom: 40px;
}

.header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #000;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    white-space: nowrap; /* 使“Welcome to ESG VISA”尽量不换行 */
}

.header p {
    font-size: 1.1rem;
    color: #666;
    font-weight: 400;
}

/* 表单容器 */
.form-container {
    width: 100%;
}

.form-section {
    margin-bottom: 30px;
}

.form-section.hidden {
    display: none;
}

.form-section h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.form-section h2 i {
    color: #00BCD4;
}

/* 表单行 */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* 表单组 */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 400;
    color: #333;
    background: #fff;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #2ECC71;
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.15);
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(232, 245, 233, 0.3) 100%);
}

.form-group input::placeholder {
    color: #999;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
    font-size: 0.9rem;
}

.form-group input[type="email"] {
    border-color: #e1e5e9;
}

.form-group input[type="password"] {
    border-color: #e1e5e9;
}

/* 按钮样式 - 匹配logo绿色主题 */
.btn {
    width: 100%;
    padding: 16px 20px;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, #27AE60 0%, #2ECC71 50%, #58D68D 100%);
    color: white;
    margin-top: 10px;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: linear-gradient(135deg, #1E8449 0%, #27AE60 50%, #2ECC71 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 204, 113, 0.4);
}

.btn:active {
    transform: translateY(0);
}

/* 表单底部 */
.form-footer {
    margin: 30px 0;
    text-align: center;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #666;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: #333;
}

.back-link i {
    font-size: 0.9rem;
}

.back-link span {
    color: #00BCD4;
    font-weight: 500;
}

/* 状态消息 */
.status-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.status-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.status-message.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.status-message.hidden {
    display: none;
}

/* 加载遮罩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.hidden {
    display: none;
}

.loading-spinner {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.loading-spinner i {
    font-size: 3rem;
    color: #00BCD4;
    margin-bottom: 20px;
}

.loading-spinner p {
    color: #666;
    font-size: 1.1rem;
}

/* 用户信息显示 */
.user-info {
    max-width: 600px;
    margin: 0 auto;
}

.info-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    text-align: left;
    border: 1px solid #e9ecef;
}

.info-card h3 {
    color: #00BCD4;
    font-size: 1.5rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
}

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

.info-item .label {
    font-weight: 600;
    color: #555;
    min-width: 120px;
}

.info-item .value {
    color: #333;
    font-weight: 500;
    text-align: right;
    word-break: break-all;
}

.action-buttons {
    text-align: center;
}

.btn-secondary {
    background: #6c757d;
    color: white;
    max-width: 200px;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(108, 117, 125, 0.3);
}

/* 新的应用布局样式 */

.app-container {
    min-height: 100vh;
    background: #f8f9fb;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 28px;
    background: #ffffff;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
    border-bottom: 1px solid #eef2f5;
}

.app-title {
    flex: 1;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.user-info:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.app-title h1 {
    margin: 0;
    color: #2e7d32; /* 品牌绿色 */
    font-size: 1.4rem;
    font-weight: 700;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-avatar {
    font-size: 2rem;
    color: #2e7d32;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-details span:first-child {
    font-weight: 600;
    color: #2e7d32;
    font-size: 0.95rem;
}

.user-details span:last-child {
    color: #7f8c8d;
    font-size: 0.85rem;
}

.app-body {
    display: flex;
    min-height: calc(100vh - 80px);
}

/* 左侧导航栏 */
.sidebar {
    width: 220px;
    background: #ffffff;
    padding: 24px 0;
    border-right: 1px solid #eef2f5;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #666;
}

.nav-item:hover {
    background: #f5f7f9;
    color: #2e7d32;
}

.nav-item.active {
    background: #ecf9f1;
    color: #2e7d32;
    border-right: 3px solid #2e7d32;
}

.nav-icon {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

.nav-icon.red {
    background: #f44336;
}

.nav-icon.blue {
    background: #2196f3;
}

.nav-icon.purple {
    background: #9c27b0;
}

.nav-separator {
    height: 1px;
    background: #e9ecef;
    margin: 20px 25px;
}

/* 右侧主内容区 */
.main-content {
    flex: 1;
    padding: 36px 48px;
    background: #ffffff;
    min-width: 0;
}

/* 文件清单区域（采用图片中的正方形框框设计） */
.file-list-area {
    margin-top: 30px;
}

.file-list-container {
    background: #ffffff;
    border: 2px dashed #2e7d32;
    border-radius: 16px;
    padding: 48px;
    min-height: 420px;
    box-shadow: inset 0 0 0 9999px rgba(46, 125, 50, 0.02);
    width: 100%;
}

.file-list-container h3 {
    color: #2e7d32;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 文件管理页面样式 */
.user-info-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 15px;
    border: 1px solid #e9ecef;
}

.user-avatar {
    font-size: 3rem;
    color: #00BCD4;
}

.user-details h3 {
    margin: 0 0 5px 0;
    color: #333;
    font-size: 1.3rem;
}

.user-details p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

.file-management {
    width: 100%;
}

.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    width: 100%;
}

.action-left {
    display: flex;
    gap: 15px;
}

.action-right {
    display: flex;
    gap: 15px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.upload-form {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 35px;
    margin-bottom: 30px;
    border: 1px solid #e9ecef;
    width: 100%;
}

.upload-form h3 {
    color: #00BCD4;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

/* 上传模态框中的表单组样式 */
.upload-modal-content .form-group {
    margin-bottom: 25px;
}

.upload-modal-content .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 1rem;
}

.upload-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 0.9rem;
    resize: vertical;
    min-height: 80px;
}

/* 上传模态框中的文本域样式 */
.upload-modal-content textarea {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
    transition: border-color 0.2s ease;
}

.upload-modal-content textarea:focus {
    outline: none;
    border-color: #00BCD4;
    box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}



.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    background: white;
    border-radius: 12px;
    border: 1px solid #e1e5e9;
    transition: all 0.2s ease;
    width: 100%;
}

.file-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.file-info {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.file-icon {
    font-size: 2rem;
    color: #00BCD4;
}

.file-details h4 {
    margin: 0 0 5px 0;
    color: #333;
    font-size: 1.1rem;
}

.file-desc {
    margin: 0 0 8px 0;
    color: #666;
    font-size: 0.9rem;
}

.file-meta {
    margin: 0;
    font-size: 0.8rem;
    color: #999;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.file-meta span {
    display: inline-flex;
    align-items: center;
    background: #f8f9fa;
    padding: 4px 8px;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    white-space: nowrap;
}

.file-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.btn-sm {
    padding: 8px 15px;
    font-size: 0.9rem;
}

.empty-state {
    text-align: center;
    padding: 48px 16px;
    color: #7f8c8d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #cfead4;
}

/* 新空状态插画与文案（参考图风格） */
.empty-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

.empty-hero svg {
    width: 200px;
    height: 140px;
}

.empty-title {
    font-weight: 600;
    color: #2e7d32;
}

.empty-subtext {
    color: #60727f;
}

.empty-bullets {
    margin-top: 4px;
    color: #95a5a6;
    font-size: 0.92rem;
}

.empty-bullets li { list-style: none; margin: 4px 0; }

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    border-radius: 15px;
    max-width: 800px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #e9ecef;
}

.modal-header h3 {
    margin: 0;
    color: #333;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #999;
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
    transition: all 0.2s ease;
}

.close-btn:hover {
    background: #f8f9fa;
    color: #666;
}

.modal-body {
    padding: 25px;
}

.file-detail-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.detail-section h4 {
    color: #00BCD4;
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 8px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    gap: 20px;
}

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

.detail-item .label {
    font-weight: 600;
    color: #555;
    min-width: 120px;
}

.detail-item .value {
    color: #333;
    text-align: right;
    word-break: break-all;
    max-width: 400px;
    flex: 1;
}

/* 文件详情样式 */
.file-detail-section {
    margin-bottom: 25px;
}

.file-detail-section:last-child {
    margin-bottom: 0;
}

.section-title {
    color: #00BCD4;
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 8px;
}

.detail-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-grid .detail-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    gap: 20px;
}

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

.detail-grid .detail-item .label {
    font-weight: 600;
    color: #555;
    min-width: 120px;
}

.detail-grid .detail-item .value {
    color: #333;
    text-align: right;
    word-break: break-all;
    max-width: 400px;
    flex: 1;
}

.status-success {
    color: #28a745;
    font-weight: 600;
}

.ipfs-link {
    color: #00BCD4;
    text-decoration: none;
    word-break: break-all;
}

.ipfs-link:hover {
    text-decoration: underline;
}

/* 上传模态框样式 */
.upload-modal-content {
    max-width: 600px;
    width: 90%;
}

.file-input-wrapper {
    position: relative;
    width: 100%;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.file-input-display {
    border: 2px dashed #00BCD4;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    background: #f8f9fa;
    transition: all 0.2s ease;
    cursor: pointer;
}

.file-input-display:hover {
    border-color: #0097a7;
    background: #e0f7fa;
}

.file-input-display i {
    font-size: 2rem;
    color: #00BCD4;
    margin-bottom: 10px;
    display: block;
}

.file-input-display span {
    color: #666;
    font-size: 0.9rem;
}

.file-input-wrapper.has-file .file-input-display {
    border-color: #4CAF50;
    background: #e8f5e8;
}

.file-input-wrapper.has-file .file-input-display i {
    color: #4CAF50;
}

.file-input-wrapper.has-file .file-input-display span {
    color: #4CAF50;
    font-weight: 600;
}

/* 退出登录按钮样式 */
.logout-section {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid #e9ecef;
    margin-top: 20px;
}

.logout-btn {
    background: #dc3545;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 120px;
}

.logout-btn:hover {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.logout-btn:active {
    transform: translateY(0);
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .user-info-header {
        flex-direction: column;
        text-align: center;
    }
    
    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .file-actions {
        width: 100%;
        justify-content: center;
    }
    
    .action-bar {
        justify-content: center;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
}

/* 法律文本 */
.legal-text {
    font-size: 0.8rem;
    color: #999;
    line-height: 1.5;
    max-width: 300px;
    margin: 0 auto;
}

.legal-text a {
    color: #666;
    text-decoration: underline;
    transition: color 0.2s ease;
}

.legal-text a:hover {
    color: #333;
}

/* Login_Default 细节样式 */
.inline-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 8px 0 6px;
}

.remember {
    color: #666;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.forgot-link {
    color: #27AE60;
    font-size: 0.95rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.forgot-link:hover {
    text-decoration: underline;
}

.social-btn {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid #e1e5e9;
    background: #fff;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 8px;
    cursor: pointer;
}

.social-btn i { color: #666; }
.social-google i { color: #db4437; }
.social-wechat i { color: #09b83e; }
.social-apple i { color: #000; }

.social-btn:hover {
    background: #fafafa;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .main-content {
        padding: 40px 20px 30px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .logo-image {
        width: 100px;
        height: 100px;
    }
    
    .logo-img {
        width: 70px;
        height: 70px;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 完整的文件清单样式 */
.file-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #e1e5e9;
    transition: all 0.3s ease;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.file-item:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
    border-color: #00BCD4;
}

.file-info {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    flex: 1;
    min-width: 0; /* 防止内容溢出 */
}

.file-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border-radius: 10px;
    border: 2px solid #e1e5e9;
}

.file-details {
    flex: 1;
    min-width: 0; /* 防止内容溢出 */
}

.file-details h4 {
    margin: 0 0 8px 0;
    color: #2c3e50;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.3;
    word-break: break-word;
    overflow-wrap: break-word;
}

.file-desc {
    margin: 0 0 10px 0;
    color: #5a6c7d;
    font-size: 0.95rem;
    line-height: 1.4;
    word-break: break-word;
    overflow-wrap: break-word;
}

.file-meta {
    margin: 0;
    font-size: 0.85rem;
    color: #7f8c8d;
    line-height: 1.5;
}

.file-meta span {
    display: inline-block;
    margin-right: 20px;
    background: #f8f9fa;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid #e1e5e9;
}

.file-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-shrink: 0;
    margin-left: 20px;
}

.btn-sm {
    padding: 10px 16px;
    font-size: 0.9rem;
    border-radius: 8px;
    font-weight: 500;
    min-width: 100px;
    text-align: center;
}

/* CID列表样式 - 简洁格式 */
.cid-list {
    word-break: break-all;
    line-height: 1.5;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: #ddd;
}

.form-section {
    animation: fadeIn 0.6s ease-out;
}

/* Logo图片已包含fadeIn动画在主样式中 */

.header {
    animation: fadeIn 1s ease-out;
}

/* 下载进度条样式 */
.download-progress {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 95%;
    max-width: 480px;
    min-width: 320px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 10000;
    animation: fadeIn 0.3s ease-out;
    border: 1px solid #e1e5e9;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px 16px;
    border-bottom: 1px solid #e1e5e9;
}

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

.progress-actions .btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 6px;
}

.progress-header h4 {
    margin: 0;
    color: #333;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-header h4 i {
    color: #00BCD4;
}

.progress-content {
    padding: 20px;
}

.file-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding: 10px 14px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e1e5e9;
    gap: 12px;
}

.file-info span:first-child {
    font-weight: 600;
    color: #333;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-info span:last-child {
    color: #666;
    font-size: 0.9rem;
    flex-shrink: 0;
    white-space: nowrap;
}

.progress-bar-container {
    margin-bottom: 16px;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: #e1e5e9;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00BCD4, #4CAF50);
    border-radius: 6px;
    transition: width 0.3s ease;
    width: 0%;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.progress-text span:first-child {
    font-weight: 600;
    color: #00BCD4;
    font-size: 1rem;
}

.progress-text span:last-child {
    color: #666;
}

.progress-details {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.detail-item {
    text-align: center;
    padding: 8px 10px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e1e5e9;
}

.detail-item .label {
    display: block;
    font-size: 0.75rem;
    color: #666;
    margin-bottom: 3px;
}

.detail-item span:last-child {
    font-weight: 600;
    color: #333;
    font-size: 0.85rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-progress {
        width: 95%;
        max-width: 95vw;
        margin: 10px;
        top: 40%;
        transform: translate(-50%, -40%);
    }
    
    .progress-content {
        padding: 16px;
    }
    
    .progress-details {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .progress-header {
        padding: 16px 20px 12px;
    }
    
    .progress-header h4 {
        font-size: 1.1rem;
    }
    
    /* 文件列表响应式 */
    .file-item {
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
    }
    
    .file-info {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 12px;
        margin-bottom: 16px;
    }
    
    .file-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .file-details h4 {
        font-size: 1.1rem;
        text-align: center;
    }
    
    .file-desc {
        text-align: center;
    }
    
    .file-meta {
        text-align: center;
    }
    
    .file-meta span {
        display: block;
        margin: 4px 0;
        text-align: center;
    }
    
    .file-actions {
        flex-direction: row;
        justify-content: center;
        margin-left: 0;
        gap: 12px;
    }
    
    .btn-sm {
        min-width: 90px;
        padding: 8px 12px;
    }
}

@media (max-width: 480px) {
    .download-progress {
        width: 98%;
        max-width: 98vw;
        margin: 5px;
        top: 35%;
        transform: translate(-50%, -35%);
    }
    
    .progress-content {
        padding: 12px;
    }
    
    .file-item {
        padding: 12px;
        margin-bottom: 12px;
    }
    
    .file-info {
        gap: 10px;
        margin-bottom: 12px;
    }
    
    .file-icon {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }
    
    .file-details h4 {
        font-size: 1rem;
    }
    
    .file-desc {
        font-size: 0.9rem;
    }
    
    .file-meta {
        font-size: 0.8rem;
    }
    
    .file-actions {
        gap: 8px;
    }
    
    .btn-sm {
        min-width: 80px;
        padding: 6px 10px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .download-progress {
        width: 98%;
        max-width: 98vw;
        margin: 5px;
        top: 35%;
        transform: translate(-50%, -35%);
    }
    
    .progress-content {
        padding: 12px;
    }
    
    .file-info {
        padding: 6px 10px;
        margin-bottom: 12px;
    }
    
    .progress-bar-container {
        margin-bottom: 12px;
    }
    
    .progress-details {
        gap: 8px;
    }
    
    .detail-item {
        padding: 6px 8px;
    }
}