:root {
    --primary-color: #FF6B81;
    --hover-color: #FF8B9A;
    --active-color: #FF4D66;
    --bg-color: #ffffff;
    --text-color: #1A1A1A;
    --label-color: #4D4D4D;
    --border-color: #E0E0E0;
}

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

body {
    font-family: 'Microsoft YaHei UI', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--label-color);
    font-size: 1.1rem;
}

.input-section {
    background: #FAFAFA;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

label {
    display: block;
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

textarea {
    width: 100%;
    height: 120px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    resize: vertical;
}

.tip {
    color: var(--label-color);
    margin: 0.5rem 0 1.5rem;
    font-size: 0.9rem;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

button:active {
    background-color: var(--active-color);
}

.result-section {
    background: #FAFAFA;
    padding: 2rem;
    border-radius: 8px;
}

.result-section h2 {
    margin-bottom: 1rem;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.2rem;
    margin: 1rem 0;
    padding: 1.2rem;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.image-grid .download-all-btn {
    grid-column: 1 / -1;
}

.image-item {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    align-items: center;
    width: 100%;
    padding: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.image-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.img-container {
    position: relative;
    width: 100%;
    padding-top: 150%;
    overflow: hidden;
    background: #ffffff;
}

.img-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.loading-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #666;
    font-size: 14px;
    z-index: 1;
}

.download-btn-container {
    width: 100%;
    text-align: center;
    padding: 0.5rem;
    background: #ffffff;
}

.download-btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: auto;
    min-width: 80px;
    margin: 0 auto;
}

.download-btn:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 129, 0.3);
}

.download-btn:active {
    background-color: var(--active-color);
}

.download-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

footer {
    text-align: center;
    margin-top: 3rem;
    color: var(--label-color);
}

.error-message {
    background-color: #fff3f3;
    border: 1px solid #ffcdd2;
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
}

.error-message .error {
    color: #d32f2f;
    margin: 0;
}

.error-message .error-details {
    color: #666;
    font-size: 0.9em;
    margin: 5px 0 0 0;
}

.download-btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    margin-top: 10px;
    text-align: center;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: var(--hover-color);
}

.download-all-btn {
    width: 100%;
    margin-bottom: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.download-all-btn:hover {
    background-color: var(--hover-color);
}

.download-all-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.download-progress {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

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

.download-all-btn {
    position: relative;
}

.download-all-btn:disabled::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 10px;
    width: 20px;
    height: 20px;
    margin-top: -10px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.global-download-btn {
    width: 100%;
    margin-bottom: 2rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1.2rem;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
    position: relative;
}

.global-download-btn:hover {
    background-color: var(--hover-color);
}

.global-download-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.global-download-btn:disabled::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 20px;
    width: 24px;
    height: 24px;
    margin-top: -12px;
    border: 3px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.note-download-container {
    grid-column: 1 / -1;
    margin-bottom: 1rem;
    text-align: center;
    padding: 0 1rem;
}

.note-download-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: auto;
    min-width: 200px;
    box-shadow: 0 2px 8px rgba(255, 107, 129, 0.2);
}

.note-download-btn:hover,
.download-btn:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 129, 0.3);
}

.note-download-btn:active {
    background-color: var(--active-color);
}

.note-download-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.contact {
    color: var(--label-color);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}