:root {
    --primary-color: #C4A484;
    --secondary-color: #A0522D;
    --background-color: #F5F5DC;
    --container-bg: #FFFFF0;
    --text-color: #4A3728;
    --border-color: #E8E8D0;
    --hover-color: rgba(196, 164, 132, 0.1);
    --box-shadow: 0 2px 10px rgba(74, 55, 40, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 2rem;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--container-bg);
    border-radius: 12px;
    box-shadow: var(--box-shadow);
}

.tab-content {
    display: flex;
    width: 100%;
    align-items: center;
    flex-direction: column;
}

h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

textarea,
#outputArea,
#metaDataOutput,
.prompt-text {
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.upload-container {
    margin: 2rem auto;
    padding: 2rem;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    width: 100%;
    min-height: 250px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    background-color: var(--hover-color);
}

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

.upload-container.dragover {
    border-color: var(--primary-color);
    background-color: rgba(196, 164, 132, 0.2);
    transform: scale(1.02);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.upload-placeholder span {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.8;
}

.upload-icon {
    opacity: 0.7;
    transition: opacity 0.3s ease;
    filter: sepia(50%) saturate(80%);
}

.upload-container:hover .upload-icon {
    opacity: 1;
}

#imagePreview {
    max-width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.prompt-section {
    width: 100%;
    margin-top: 2rem;
}

.prompt-box {
    position: relative;
    background-color: var(--container-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    transition: transform 0.2s ease;
}

.prompt-box:hover {
    transform: translateY(-2px);
}

.copy-icon {
    position: absolute;
    right: 1rem;
    top: 1rem;
    padding: 0.5rem;
    border-radius: 50%;
    background-color: var(--hover-color);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

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

.copy-icon:hover img {
    filter: brightness(0) invert(1);
}

button {
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--box-shadow);
}

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

.meta-data-container {
    width: 100%;
    margin-top: 2rem;
}

.meta-data-content {
    background-color: var(--container-bg);
    border-radius: 8px;
    padding: 1.5rem;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .container {
        padding: 1rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    .upload-container {
        min-height: 200px;
        padding: 1rem;
    }

    .prompt-box {
        padding: 1rem;
    }

    .copy-icon {
        right: 0.5rem;
        top: 0.5rem;
    }
}

/* 复制成功提醒横幅样式 */
.notification-banner {
    position: fixed;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: top 0.3s ease-in-out;
    font-weight: 500;
    font-size: 1rem;
    min-width: 200px;
    text-align: center;
}

.notification-banner.show {
    top: 0;
}

.notification-banner.success {
    background-color: #4CAF50;
}

.notification-banner.info {
    background-color: var(--primary-color);
}

/* 横幅文字样式 */
#notificationText {
    display: block;
}