:root {
    --primary-color: #0071e3;
    --primary-hover: #0077ed;
    --primary-active: #0068d1;
    --secondary-color: #86868b;
    --dark-background: #1d1d1f;
    --light-background: #f5f5f7;
    --border-color: #d2d2d7;
    --text-color: #1d1d1f;
    --text-secondary: #86868b;
    --success-color: #4cd964;
    --danger-color: #ff3b30;
    --warning-color: #ff9500;
    --container-width: 800px;
    --border-radius: 10px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --animation-duration: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
}

body {
    background-color: var(--light-background);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

.container {
    width: 100%;
    max-width: var(--container-width);
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-weight: 600;
    font-size: 32px;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 18px;
}

main {
    background-color: #ffffff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 40px;
    margin-bottom: 30px;
}

.upload-container {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-container:hover {
    border-color: var(--primary-color);
}

.upload-container.dragging {
    background-color: rgba(0, 113, 227, 0.05);
    border-color: var(--primary-color);
}

.upload-icon {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.upload-text p {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.upload-button {
    display: inline-block;
    background-color: #ffffff;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.upload-button:hover {
    background-color: rgba(0, 113, 227, 0.05);
}

.upload-button:active {
    transform: scale(0.97);
    background-color: rgba(0, 113, 227, 0.1);
}

/* 波纹效果 */
.upload-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.upload-button:active::after {
    animation: ripple 0.4s ease-out;
}

.upload-tips {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.upload-tips kbd {
    display: inline-block;
    background-color: #f8f8f8;
    border: 1px solid #ddd;
    border-radius: 3px;
    box-shadow: 0 1px 1px rgba(0,0,0,.2);
    font-family: inherit;
    font-size: 12px;
    line-height: 1;
    padding: 3px 5px;
    margin: 0 2px;
    vertical-align: middle;
}

.api-selector {
    margin-bottom: 20px;
}

.api-selector label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

select {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    font-size: 16px;
    margin-bottom: 10px;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2386868b' 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 10px center;
    background-size: 16px;
    transition: border-color 0.2s ease;
}

select:hover {
    border-color: var(--primary-color);
}

select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.2);
}

.primary-button {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 14px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

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

.primary-button:active:not(:disabled) {
    background-color: var(--primary-active);
    transform: scale(0.98);
}

/* 主按钮点击波纹效果 */
.primary-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.primary-button:active:not(:disabled)::after {
    animation: ripple 0.4s ease-out;
}

.primary-button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
    opacity: 0.7;
}

/* 批量上传队列样式 */
.upload-queue-container {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.upload-queue-container h2 {
    margin-bottom: 20px;
    font-weight: 500;
}

.queue-list {
    margin-bottom: 20px;
}

.queue-item {
    display: flex;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 10px;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.queue-item:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.queue-item.uploading {
    border-color: var(--primary-color);
    background-color: rgba(0, 113, 227, 0.03);
}

.queue-item.success {
    border-color: var(--success-color);
    background-color: rgba(76, 217, 100, 0.03);
}

.queue-item.error {
    border-color: var(--danger-color);
    background-color: rgba(255, 59, 48, 0.03);
}

.queue-item-preview {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    overflow: hidden;
    margin-right: 12px;
    flex-shrink: 0;
    background-color: var(--light-background);
}

.queue-item-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.queue-item-info {
    flex-grow: 1;
}

.queue-item-name {
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 300px;
}

.queue-item-size {
    font-size: 12px;
    color: var(--text-secondary);
}

.queue-item-status {
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 500;
    margin-left: 12px;
}

.queue-item-status.pending {
    color: var(--text-secondary);
}

.queue-item-status.uploading {
    color: var(--primary-color);
}

.queue-item-status.success {
    color: var(--success-color);
}

.queue-item-status.error {
    color: var(--danger-color);
}

.queue-item-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background-color: var(--primary-color);
    width: 0;
    transition: width 0.2s ease;
}

/* 上传结果样式 */
.result-container {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.result-container h2 {
    margin-bottom: 20px;
    font-weight: 500;
}

.results-list {
    margin-bottom: 20px;
}

.result-item {
    display: flex;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.result-item:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.result-item-preview {
    width: 80px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
    margin-right: 15px;
    flex-shrink: 0;
    background-color: var(--light-background);
}

.result-item-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.result-item-details {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.result-item-filename {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 6px;
}

.result-item-url {
    display: flex;
    margin-bottom: 8px;
    flex-grow: 1;
}

.result-item-url input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-top-left-radius: var(--border-radius);
    border-bottom-left-radius: var(--border-radius);
    font-size: 13px;
    background-color: #f5f5f7;
    transition: border-color 0.2s ease;
}

.result-item-url input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.result-item-copy {
    background-color: var(--light-background);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-left: none;
    padding: 8px 12px;
    border-top-right-radius: var(--border-radius);
    border-bottom-right-radius: var(--border-radius);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.result-item-copy:hover {
    background-color: #ebebeb;
}

.result-item-copy:active {
    transform: scale(0.95);
    background-color: #e0e0e0;
}

/* 复制按钮的动画效果 */
.result-item-copy::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(0, 0, 0, 0.1);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.result-item-copy:active::after {
    animation: ripple 0.4s ease-out;
}

/* 复制成功的动画 */
@keyframes copy-success {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.copy-success {
    animation: copy-success 0.3s ease;
    background-color: rgba(76, 217, 100, 0.1) !important;
    color: var(--success-color) !important;
}

.batch-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.batch-actions .secondary-button {
    padding: 10px 15px;
    margin: 0;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    flex: 1;
    min-width: 120px;
    position: relative;
    overflow: hidden;
}

.secondary-button {
    background-color: var(--light-background);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 12px 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.secondary-button:hover {
    background-color: #ebebeb;
    border-color: #c0c0c0;
}

.secondary-button:active {
    transform: scale(0.97);
    background-color: #e0e0e0;
}

/* 次要按钮点击波纹效果 */
.secondary-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(0, 0, 0, 0.1);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%, -50%);
    transform-origin: 50% 50%;
}

.secondary-button:active::after {
    animation: ripple 0.4s ease-out;
}

/* 波纹动画 */
@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.7;
    }
    20% {
        transform: scale(25, 25);
        opacity: 0.5;
    }
    100% {
        opacity: 0;
        transform: scale(50, 50);
    }
}

.progress-container {
    height: 4px;
    width: 100%;
    background-color: var(--border-color);
    border-radius: 2px;
    margin: 15px 0;
    overflow: hidden;
    display: none;
}

.progress-bar {
    height: 100%;
    width: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.status-message {
    text-align: center;
    margin: 10px 0;
    font-size: 14px;
    font-weight: 500;
    display: none;
    transition: opacity 0.3s ease;
}

.status-message.show {
    animation: fade-in 0.3s ease;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.status-message.success {
    color: var(--success-color);
}

.status-message.error {
    color: var(--danger-color);
}

footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 40px;
}

/* Watermark Styles */
.watermark-option {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.checkbox-container {
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    font-size: 16px;
    user-select: none;
    display: flex;
    align-items: center;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 20px;
    width: 20px;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--primary-color);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.watermark-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.watermark-preview-container {
    width: 80px;
    height: 80px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    background-color: var(--light-background);
    margin-bottom: 5px;
}

.watermark-text {
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    display: flex;
    flex-wrap: wrap;
    opacity: 0.08;
    font-size: 12px;
    transform: rotate(-45deg);
    transform-origin: top left;
    color: white;
    user-select: none;
    pointer-events: none;
    overflow: hidden;
}

.watermark-text::before,
.watermark-text::after {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-image: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 30px,
        rgba(255, 255, 255, 0.8) 30px,
        rgba(255, 255, 255, 0.8) 32px
    );
    opacity: 0.06;
    pointer-events: none;
}

.watermark-text span {
    position: absolute;
    white-space: nowrap;
    font-size: 12px;
    color: white;
    text-shadow: 0px 0px 2px rgba(0, 0, 0, 0.3);
}

.watermark-preview span {
    font-size: 12px;
    color: var(--text-secondary);
}

.watermark-input-container {
    margin: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.watermark-input-container label {
    font-size: 14px;
    color: #555;
}

.watermark-input-container input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    flex-grow: 1;
    transition: border-color 0.3s;
}

.watermark-input-container input:focus {
    outline: none;
    border-color: #4a8fee;
    box-shadow: 0 0 0 2px rgba(74, 143, 238, 0.1);
}