/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/* 移除所有元素的焦点框 */
*:focus {
    outline: none !important;
}

/* 移除按钮和输入框的焦点框 */
button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
    outline: none !important;
    box-shadow: none !important;
}

body {
    font-family: 'SF Pro Display', 'Inter', 'Helvetica Neue', Arial, sans-serif;
    background: #000;
    color: rgba(255, 255, 255, 1.0);
    overflow-x: hidden;
    min-height: 100vh;
}

/* 图片背景 */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: #000; /* 添加后备背景色 */
}

.background-gradient img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
    /* 优化图片加载性能 */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    will-change: transform;
    transform: translateZ(0); /* 启用硬件加速 */
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.background-gradient img.loaded {
    opacity: 1;
}

/* 背景图片样式已通过JavaScript动态设置 */

/* 预加载样式 */
.preload-bg {
    position: absolute;
    top: -9999px;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

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

/* 顶部导航栏 */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 16px 0;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: rgba(255, 255, 255, 1.0);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    min-height: 44px;
}

.logo i {
    font-size: 24px;
    color: #f5576c;
}

.nav-actions {
    display: flex;
    gap: 12px;
}

.search-btn, .home-btn, .security-btn {
    background: transparent;
    border: none;
    border-radius: 50%;
    padding: 12px;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    min-width: 44px;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.search-btn:hover, .home-btn:hover, .security-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 1.0);
    transform: scale(1.1);
}

/* 安全按钮特殊样式 */
.security-btn {
    color: rgba(255, 107, 107, 0.8) !important;
}

.security-btn:hover {
    color: rgba(255, 107, 107, 1) !important;
    background: rgba(255, 107, 107, 0.1) !important;
}

/* 主内容区域 */
.main-content {
    margin-top: 100px;
    padding: 40px 0;
    min-height: calc(100vh - 100px);
}

/* 上传区域 */
.upload-section {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    width: 100%;
}

.upload-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 32px;
    width: 100%;
    max-width: 800px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
}

.upload-header {
    text-align: center;
    margin-bottom: 32px;
}

.upload-header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 1.0);
}

.upload-header p {
    font-size: 16px;
    color: rgba(235, 235, 245, 0.7);
}

/* 文件拖拽区域 */
.file-drop-zone {
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    padding: 48px 24px;
    text-align: center;
    margin-bottom: 24px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.file-drop-zone:hover {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.05);
}

.file-drop-zone.dragover {
    border-color: #f5576c;
    background: rgba(245, 87, 108, 0.1);
}

.drop-zone-content {
    pointer-events: none;
}

.upload-icon {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}

.file-drop-zone h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 1.0);
}

.file-drop-zone p {
    font-size: 14px;
    color: rgba(235, 235, 245, 0.7);
    margin-bottom: 20px;
}

.file-input {
    display: none;
}

.select-file-btn {
    background: linear-gradient(135deg, #f5576c, #f093fb);
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    pointer-events: all;
}

.select-file-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 87, 108, 0.3);
}

/* 文件信息显示 */
.file-info {
    margin-bottom: 24px;
}

.file-preview {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 48px;
    overflow: hidden;
}

.file-icon {
    font-size: 24px;
    color: #4facfe;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    width: 24px;
}

.file-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    overflow: hidden;
}

.file-name {
    display: block;
    font-weight: 600;
    color: rgba(255, 255, 255, 1.0);
    margin-bottom: 2px;
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    display: block;
    font-size: 14px;
    color: rgba(235, 235, 245, 0.7);
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.remove-file-btn {
    background: transparent;
    border: none;
    border-radius: 50%;
    padding: 8px;
    color: rgba(255, 107, 107, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.remove-file-btn:hover {
    background: rgba(255, 107, 107, 0.15);
    color: rgba(255, 107, 107, 1.0);
    transform: scale(1.1);
}

/* 配置选项 */
.upload-options {
    margin-bottom: 32px;
}

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

.option-row {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.password-section {
    flex: 2;
}

.expire-section {
    flex: 1;
    min-width: 150px;
}

.encryption-section {
    flex: 1;
    min-width: 120px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.encryption-section label {
    margin-bottom: 8px;
    height: 24px;
    display: flex;
    align-items: center;
}

/* 密码输入框容器 */
.password-input-container {
    position: relative;
    width: 100%;
}

.password-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 12px 50px 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 16px;
    transition: all 0.3s ease;
    height: 48px;
    box-sizing: border-box;
}

.password-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
}

.password-input::placeholder {
    color: rgba(235, 235, 245, 0.5);
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: rgba(255, 255, 255, 1.0);
    background: rgba(255, 255, 255, 0.1);
}

.option-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 1.0);
}

.option-input, .option-select {
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 16px;
    transition: all 0.3s ease;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    height: 48px;
    box-sizing: border-box;
}

.option-select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.7)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
    cursor: pointer;
}

.option-select option {
    background: rgba(30, 30, 30, 0.95);
    color: rgba(255, 255, 255, 1.0);
}

/* 提取码开关样式 */
.switch-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 0;
    height: 48px;
}

.extract-code-switch {
    display: none;
}

.switch-label {
    position: relative;
    width: 50px;
    height: 26px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.switch-slider {
    position: absolute;
    top: 50%;
    left: 2px;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transform: translateY(-50%);
}

.extract-code-switch:checked + .switch-label {
    background: rgba(52, 199, 89, 0.3);
    border-color: rgba(52, 199, 89, 0.5);
}

.extract-code-switch:checked + .switch-label .switch-slider {
    transform: translateX(24px) translateY(-50%);
    background: rgba(52, 199, 89, 1.0);
}

.switch-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.switch-label:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.extract-code-switch:checked ~ .switch-text {
    color: rgba(52, 199, 89, 1.0);
    padding: 8px 12px;
    border: none;
}

.option-select::-ms-expand {
    display: none;
}

/* 自定义下拉菜单 */
.custom-select {
    position: relative;
    width: 100%;
}

.select-trigger {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    -moz-backdrop-filter: blur(20px);
    -ms-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    height: 48px;
    box-sizing: border-box;
}

.select-trigger:hover {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.25);
}

.select-arrow {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    transition: transform 0.3s ease;
}

.custom-select.active .select-arrow {
    transform: rotate(180deg);
}

.select-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    -moz-backdrop-filter: blur(20px);
    -ms-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    margin-top: 4px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.custom-select.active .select-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.select-option {
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.select-option:first-child {
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.select-option:last-child {
    border-bottom: none;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

.select-option:hover {
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 1.0);
}

.select-option:first-child:hover {
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 1.0);
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.select-option:last-child:hover {
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 1.0);
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

.select-option.selected {
    background: rgba(79, 172, 254, 0.25);
    color: rgba(255, 255, 255, 1.0);
}

.select-option.selected:hover {
    background: rgba(79, 172, 254, 0.35);
}

.select-option.selected:first-child {
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.select-option.selected:last-child {
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

.select-option.selected:first-child:hover {
    background: rgba(79, 172, 254, 0.35);
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.select-option.selected:last-child:hover {
    background: rgba(79, 172, 254, 0.35);
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

.option-input:focus, .option-select:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
}

.option-input::placeholder {
    color: rgba(235, 235, 245, 0.5);
}

.option-hint {
    display: block;
    font-size: 12px;
    color: rgba(235, 235, 245, 0.5);
}

/* 上传按钮 */
.upload-btn {
    width: 100%;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    border: none;
    border-radius: 16px;
    padding: 16px 24px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}

.upload-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.upload-btn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(235, 235, 245, 0.5);
    cursor: not-allowed;
}

/* 进度条 */
.upload-progress {
    margin-bottom: 16px;
}

.progress-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    height: 8px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    background: linear-gradient(90deg, #4facfe, #00f2fe);
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 14px;
    color: rgba(235, 235, 245, 0.7);
    text-align: center;
    display: block;
}

/* 上传结果 */
.upload-result {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    width: 100%;
}

.result-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 32px;
    width: 100%;
    max-width: 800px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-align: center;
    margin: 0 auto;
}

.result-header {
    margin-bottom: 24px;
}

.success-icon {
    font-size: 48px;
    color: #4ade80;
    margin-bottom: 16px;
}

.result-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
}

.share-link-section {
    margin-bottom: 24px;
    text-align: left;
}

.share-link-section label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 1.0);
}

.link-container {
    display: flex;
    gap: 8px;
    overflow: hidden;
}

.share-link-input {
    flex: 1;
    min-width: 0;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.share-link-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.2);
}

.copy-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    white-space: nowrap;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.file-id-section {
    margin-bottom: 24px;
}

.file-id-section label {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 8px;
    text-align: left;
}

.file-id-note {
    display: block;
    font-size: 14px;
    color: rgba(235, 235, 245, 0.6);
    margin-top: 8px;
    text-align: left;
}

.result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 24px;
}

.share-btn {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.result-info {
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: rgba(235, 235, 245, 0.7);
    font-size: 14px;
}

.new-upload-btn {
    background: linear-gradient(135deg, #f5576c, #f093fb);
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.new-upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 87, 108, 0.3);
}

/* 搜索面板 */
.search-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.search-panel.active {
    opacity: 1;
    visibility: visible;
}

.search-content {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 32px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.1) translate(200px, -200px);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), height 0.4s ease;
    transform-origin: top right;
}

.search-panel.active .search-content {
    transform: scale(1) translate(0, 0);
    opacity: 1;
}

/* 搜索面板关闭动画 */
.search-panel.closing .search-content {
    transform: scale(0.1) translate(200px, -200px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.55, 0.085, 0.68, 0.53);
}

.search-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.search-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
}

.close-btn {
    background: transparent;
    border: none;
    border-radius: 50%;
    padding: 0;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 1.0);
    transform: scale(1.1);
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.search-inputs {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.search-button-container {
    display: flex;
    justify-content: center;
}

.search-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 14px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 16px;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
}

.search-input::placeholder {
    color: rgba(235, 235, 245, 0.5);
}

.search-submit-btn {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    border: none;
    border-radius: 12px;
    padding: 14px 32px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    min-width: 120px;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.2);
}

.search-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

/* 搜索结果 */
.search-results {
    max-height: 400px;
    overflow-y: auto;
    transition: max-height 0.4s ease, opacity 0.3s ease;
}

.search-results.expanding {
    animation: expandResults 0.4s ease-out;
}

@keyframes expandResults {
    from {
        max-height: 0;
        opacity: 0;
    }
    to {
        max-height: 400px;
        opacity: 1;
    }
}

.search-result-item {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.search-result-item:hover {
    background: rgba(255, 255, 255, 0.15);
}

.result-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
    gap: 12px;
    overflow: hidden;
}

.result-item-info-group {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.result-item-name {
    font-weight: 600;
    color: rgba(255, 255, 255, 1.0);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-item-info {
    font-size: 12px;
    color: rgba(235, 235, 245, 0.7);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-item-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.result-action-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    padding: 6px 12px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.result-action-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 文件分享页面 */
.file-share-section {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.file-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 32px;
    width: 100%;
    max-width: 800px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.file-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.file-icon-large {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #4facfe;
}

.file-title h1 {
    font-size: 24px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
    margin-bottom: 4px;
    word-break: break-all;
}

.file-subtitle {
    font-size: 14px;
    color: rgba(235, 235, 245, 0.7);
}

.detail-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.detail-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.detail-item.full-width {
    flex: none;
    width: 100%;
}

.detail-item i {
    color: #4facfe;
    width: 16px;
}

.detail-label {
    font-size: 14px;
    color: rgba(235, 235, 245, 0.7);
    margin-right: auto;
}

.detail-value {
    font-weight: 600;
    color: rgba(255, 255, 255, 1.0);
}

.expire-time {
    font-family: 'Courier New', monospace;
}

.countdown {
    color: #4ade80;
}

.download-section {
    margin-bottom: 24px;
}

.download-btn {
    width: 100%;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    border: none;
    border-radius: 16px;
    padding: 16px 24px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.share-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.action-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 10px 16px;
    color: rgba(255, 255, 255, 1.0);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.security-notice {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 12px;
}

.security-notice i {
    color: #ffc107;
    margin-top: 2px;
}

.notice-content h4 {
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 1.0);
    margin-bottom: 4px;
}

.notice-content p {
    font-size: 12px;
    color: rgba(235, 235, 245, 0.7);
    line-height: 1.4;
}

/* 错误页面 */
.error-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.error-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 48px 32px;
    text-align: center;
    max-width: 800px;
    width: 100%;
}

.error-icon {
    font-size: 64px;
    color: #ff6b6b;
    margin-bottom: 24px;
}

.error-content h1 {
    font-size: 28px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
    margin-bottom: 16px;
}

.error-message {
    font-size: 16px;
    color: rgba(235, 235, 245, 0.7);
    margin-bottom: 32px;
    line-height: 1.5;
}

.error-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    border: none;
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 1.0);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 通知消息 */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 16px 20px;
    z-index: 3000;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    max-width: 350px;
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification.success {
    border-color: rgba(74, 222, 128, 0.3);
    background: rgba(74, 222, 128, 0.1);
}

.notification.error {
    border-color: rgba(255, 107, 107, 0.3);
    background: rgba(255, 107, 107, 0.1);
}

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

.notification-icon {
    font-size: 18px;
}

.notification.success .notification-icon {
    color: #4ade80;
}

.notification.error .notification-icon {
    color: #ff6b6b;
}

.notification-message {
    color: rgba(255, 255, 255, 1.0);
    font-size: 14px;
    font-weight: 500;
}

/* 密码验证模态对话框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    -moz-backdrop-filter: blur(10px);
    -ms-backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    -moz-backdrop-filter: blur(30px);
    -ms-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 20px;
    padding: 0;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 24px 0 24px;
    margin-bottom: 16px;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-close {
    background: transparent;
    border: none;
    border-radius: 50%;
    padding: 8px;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 1.0);
    transform: scale(1.1);
}

.modal-body {
    padding: 0 24px 24px 24px;
}

.modal-body p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.5;
}

.password-input-group {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.modal-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 14px;
    transition: all 0.3s ease;
}

.modal-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.modal-input::placeholder {
    color: rgba(235, 235, 245, 0.5);
}

.verify-btn {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    border: none;
    border-radius: 12px;
    padding: 12px 20px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.verify-btn:hover {
    background: linear-gradient(135deg, #3a8bfe, #00d4fe);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.4);
}

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

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .upload-card, .result-card, .file-card, .error-card {
        padding: 24px 20px;
        margin: 0 auto;
        width: calc(100% - 32px);
        max-width: 800px;
    }
    
    .upload-header h1 {
        font-size: 24px;
    }
    
    .file-drop-zone {
        padding: 32px 16px;
    }
    
    .upload-icon {
        font-size: 36px;
    }
    
    .option-row {
        flex-direction: column;
        gap: 16px;
    }
    
    .password-section, .expire-section {
        flex: none;
        width: 100%;
        min-width: auto;
    }
    
    .file-header {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .file-icon-large {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }
    
    .file-title h1 {
        font-size: 20px;
    }
    
    .detail-row {
        flex-direction: column;
        gap: 8px;
    }
    
    .share-actions {
        flex-direction: column;
    }
    
    .error-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .search-content {
        margin: 20px;
        padding: 24px 20px;
    }
    
    .search-form {
        gap: 12px;
    }
    
    .search-inputs {
        gap: 10px;
    }
    
    .search-input {
        padding: 12px 14px;
        font-size: 16px;
    }
    
    .search-submit-btn {
        padding: 12px 24px;
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }
    
    .notification {
        right: 16px;
        left: 16px;
        max-width: none;
        transform: translateY(-100px);
    }
    
    .notification.show {
        transform: translateY(0);
    }
    
    .modal-content {
        margin: 16px;
        max-width: none;
    }
    
    .password-input-group {
        flex-direction: column;
    }
    
    .verify-btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-content {
        margin-top: 80px;
        padding: 20px 0;
    }
    
    .top-bar {
        padding: 12px 0;
    }
    
    .logo {
        font-size: 18px;
    }
    
    .logo i {
        font-size: 20px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* 选择文本样式 */
::selection {
    background: rgba(79, 172, 254, 0.3);
    color: rgba(255, 255, 255, 1.0);
}

/* 关于对话框 */
.about-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.about-dialog.active {
    opacity: 1;
    visibility: visible;
}

.about-content {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 32px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    position: relative;
    transform: scale(0.1) translate(-200px, -200px);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: top left;
}

.about-dialog.active .about-content {
    transform: scale(1) translate(0, 0);
    opacity: 1;
}

/* 关闭动画 */
.about-dialog.closing .about-content {
    transform: scale(0.1) translate(-200px, -200px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.55, 0.085, 0.68, 0.53);
}

.about-header {
    position: absolute;
    top: 16px;
    right: 16px;
}

.about-body {
    padding-top: 16px;
}

.avatar-section {
    margin-bottom: 24px;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.developer-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
    margin: 0 0 16px 0;
}

.version-info {
    margin-bottom: 24px;
}

.version-info p {
    font-size: 14px;
    color: rgba(235, 235, 245, 0.7);
    margin: 0;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: rgba(255, 255, 255, 1.0);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.social-link.telegram:hover {
    background: rgba(0, 136, 204, 0.3);
    border-color: rgba(0, 136, 204, 0.5);
}

.social-link.bilibili:hover {
    background: rgba(251, 114, 153, 0.3);
    border-color: rgba(251, 114, 153, 0.5);
}

.logo {
    cursor: pointer;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

/* 版本号点击样式 */
.version-number {
    cursor: pointer;
    color: rgba(255, 255, 255, 1.0);
    transition: all 0.3s ease;
    border-radius: 8px;
    display: inline-block;
}

.version-number:hover {
    color: rgba(255, 255, 255, 1.0);
    transform: translateY(-1px);
}

.version-number:active {
    transform: scale(0.95) rotateX(5deg);
    background: rgba(255, 255, 255, 0.15);
    filter: brightness(1.2);
}

/* 版本报告对话框 */
.version-report-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.version-report-dialog.active {
    opacity: 1;
    visibility: visible;
}

.version-report-content {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 24px;
    width: 90%;
    max-width: 320px;
    position: relative;
    transform: scale(0.3);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.version-report-dialog.active .version-report-content {
    transform: scale(1);
    opacity: 1;
}

/* 关闭动画 */
.version-report-dialog.closing .version-report-content {
    transform: scale(0.3);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.55, 0.085, 0.68, 0.53);
}

.version-report-header {
    position: absolute;
    top: 16px;
    right: 16px;
}

.version-report-body {
    padding-top: 16px;
    text-align: center;
}

.version-title {
    font-size: 22px;
    font-weight: 700;
    color: rgba(255, 255, 255, 1.0);
    margin: 0 0 20px 0;
    text-align: center;
}

.update-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.update-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 6px 0;
    transition: all 0.2s ease;
}

.update-item:hover {
    transform: translateX(4px);
}

.update-item i {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    width: 16px;
    text-align: center;
    margin-top: 2px;
    flex-shrink: 0;
}

.update-item span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    font-weight: 400;
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .version-report-content {
        padding: 20px;
        max-width: 95%;
    }
    
    .version-title {
        font-size: 20px;
        margin-bottom: 16px;
    }
    
    .update-item span {
        font-size: 12px;
    }
}

::-moz-selection {
    background: rgba(79, 172, 254, 0.3);
    color: rgba(255, 255, 255, 1.0);
}

/* 提取码验证页面样式 */
.verify-section {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    width: 100%;
}

.verify-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.verify-header {
    margin-bottom: 32px;
}

.verify-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.verify-icon i {
    font-size: 32px;
    color: rgba(255, 255, 255, 0.9);
}

.verify-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 1.0);
}

.verify-subtitle {
    font-size: 16px;
    color: rgba(235, 235, 245, 0.7);
    margin-bottom: 0;
}

.extract-code-section {
    margin-bottom: 32px;
}

.extract-code-section label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 12px;
    text-align: left;
}

.extract-code-input-container {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.extract-code-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 16px 20px;
    font-size: 18px;
    color: rgba(255, 255, 255, 1.0);
    text-align: center;
    letter-spacing: 2px;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.extract-code-input:focus {
    border-color: rgba(79, 172, 254, 0.6);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.2);
}

.extract-code-input::placeholder {
    color: rgba(235, 235, 245, 0.5);
    letter-spacing: normal;
    text-transform: none;
    font-weight: normal;
}

.verify-btn {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border: none;
    border-radius: 12px;
    padding: 16px 24px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.verify-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

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

.verify-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.extract-code-hint {
    display: block;
    font-size: 14px;
    color: rgba(235, 235, 245, 0.6);
    text-align: left;
    margin-top: 8px;
}

/* 上传结果页面的提取码显示样式 */
.extract-code-display {
    flex: 1;
    min-width: 0;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 1.0);
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: default;
}

.extract-code-display:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.2);
}

.extract-code-note {
    display: block;
    font-size: 14px;
    color: rgba(235, 235, 245, 0.6);
    margin-top: 8px;
    text-align: left;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .upload-card {
        padding: 24px;
        margin: 0 16px;
    }
    
    .result-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .share-btn, .new-upload-btn {
        width: 100%;
    }
    
    .verify-header h1 {
        font-size: 24px;
    }
    
    .verify-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 16px;
    }
    
    .verify-icon i {
        font-size: 24px;
    }
    
    .extract-code-input-container {
        flex-direction: column;
        gap: 16px;
    }
    
    .extract-code-input {
        font-size: 16px;
    }
    
    .verify-btn {
        width: 100%;
        padding: 18px;
    }
}