/* MieMeme - 现代化样式 */
:root {
    /* 颜色变量 - 基于现代设计趋势的温暖配色 */
    --primary: #ff6b6b;     /* 珊瑚红 - 主要按钮和重点元素 */
    --primary-light: #ff8e8e;
    --primary-dark: #e55555;
    --secondary: #4ecdc4;   /* 青绿色 - 次要元素和装饰 */
    --secondary-light: #7dd3d8;
    --secondary-dark: #3bb5ac;
    --accent: #45b7d1;      /* 天蓝色 - 强调色和链接 */
    --text-primary: #2d3436;        /* 深灰 - 主要文字 */
    --text-secondary: #636e72;
    --text-light: #ffffff;
    --background: #f8f9fa;  /* 浅灰白 - 背景色 */
    --card-bg: #ffffff;
    --border: #ddd6fe;      /* 淡紫 - 边框 */
    --success: #00b894;     /* 翠绿 - 成功状态 */
    --warning: #fdcb6e;     /* 金黄 - 警告状态 */
    --error: #e17055;       /* 橙红 - 错误状态 */
    --border-radius: 16px;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 6px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    background-image: linear-gradient(120deg, #e0f7fa 0%, #f5f7fa 100%);
    min-height: 100vh;
    overflow-x: hidden;
    padding-bottom: 80px; /* 为底部栏留出空间 */
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 羊和云朵背景元素 */
.sheep-bg-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.sheep {
    position: absolute;
    width: 120px;
    height: 120px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%23ff6b6b" d="M444.2,220.5c-24.3-24.3-60.3-31.5-91.8-18.2c-9.9-22.7-32.2-38.6-58.2-38.6h-78.5c-26,0-48.4,15.9-58.2,38.6 c-31.5-13.3-67.5-6.1-91.8,18.2c-30.8,30.8-30.8,80.8,0,111.6c30.8,30.8,80.8,30.8,111.6,0c6.8-6.8,12.2-14.5,16.2-22.7h122.9 c3.9,8.2,9.4,15.9,16.2,22.7c30.8,30.8,80.8,30.8,111.6,0C475,301.3,475,251.3,444.2,220.5z"/><circle fill="%23333" cx="180" cy="250" r="10"/><circle fill="%23333" cx="330" cy="250" r="10"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.15;
}

.sheep-1 {
    top: 15%;
    right: 5%;
    animation: float 8s ease-in-out infinite;
}

.sheep-2 {
    bottom: 10%;
    left: 5%;
    animation: float 10s ease-in-out infinite reverse;
}

.cloud {
    position: absolute;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%234ecdc4" d="M409.6,160c-17.7,0-34.3,4.8-48.6,13.1c-10.4-37.5-44.9-65.1-85.8-65.1c-36.9,0-68.8,22.5-82.3,54.7 c-9.4-5.5-20.4-8.7-32.1-8.7c-35.3,0-64,28.7-64,64s28.7,64,64,64h248.8c35.3,0,64-28.7,64-64S444.9,160,409.6,160z"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.2;
}

.cloud-1 {
    width: 200px;
    height: 100px;
    top: 10%;
    left: 10%;
    animation: float 15s ease-in-out infinite;
}

.cloud-2 {
    width: 150px;
    height: 75px;
    top: 20%;
    right: 15%;
    animation: float 18s ease-in-out infinite 2s;
}

.cloud-3 {
    width: 180px;
    height: 90px;
    bottom: 15%;
    right: 10%;
    animation: float 20s ease-in-out infinite 5s;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

/* 头部样式 */
header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.home-link {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: white;
    text-decoration: none;
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(78, 205, 196, 0.3);
    display: inline-flex;
    align-items: center;
}

.home-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(78, 205, 196, 0.4);
}

.logo-img {
    width: 60px;
    height: 60px;
    margin-right: 1rem;
    object-fit: contain;
}

header h1 {
    font-family: 'Comic Sans MS', 'Trebuchet MS', cursive, sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: 1px;
}

.tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* 底部用户状态栏 */
.user-status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--card-bg) 0%, #f8f9fa 100%);
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
}

.user-status-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: center;
}

.user-info-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-sm);
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: left;
}



.generations-count {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
    background: linear-gradient(135deg, rgba(69, 183, 209, 0.1) 0%, rgba(69, 183, 209, 0.05) 100%);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    border: 1px solid rgba(69, 183, 209, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.user-email {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 4px;
}

/* 为底部栏留出空间 */
body {
    padding-bottom: 80px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header {
        padding: 0.5rem 0;
    }
    
    .logo {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .logo-img {
        width: 50px;
        height: 50px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .generator-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 1.5rem 0;
    }
    
    .generator-card {
        padding: 2rem 1.5rem;
    }
    
    .home-link {
        position: absolute;
        top: 1rem;
        left: 1rem;
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
        z-index: 10;
    }
    
    .user-status-content {
        padding: 0 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .user-info-left {
        justify-content: center;
    }
    
    body {
        padding-bottom: 120px;
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .upload-area {
        padding: 1.5rem;
    }
    
    .result-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.8rem;
    }
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    text-decoration: none;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    background-color: var(--text-secondary);
    color: var(--text-light);
}

.btn-small:hover {
    background-color: var(--text-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* 生成器卡片网格 */
.generator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.generator-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-decoration: none;
    color: var(--text-primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.8);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
    backdrop-filter: blur(10px);
    min-height: 220px;
}

.generator-card .card-glow-top {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    top: 0;
    left: 0;
    background: linear-gradient(135deg, var(--primary-light), transparent);
    border-top-left-radius: 20px;
    opacity: 0.3;
    transition: var(--transition);
    z-index: 0;
}

.generator-card .card-glow-bottom {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    bottom: 0;
    right: 0;
    background: linear-gradient(135deg, var(--secondary-light), transparent);
    border-bottom-right-radius: 20px;
    opacity: 0.3;
    transition: var(--transition);
    z-index: 0;
}

.generator-card:hover .card-glow-top {
    width: 80px;
    height: 80px;
    opacity: 0.5;
}

.generator-card:hover .card-glow-bottom {
    width: 80px;
    height: 80px;
    opacity: 0.5;
}

.generator-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 1);
}

.generator-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--primary-dark);
    position: relative;
    z-index: 1;
}

.generator-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

/* 添加按钮样式到卡片 */
.generator-card .card-button {
    position: absolute;
    bottom: 1.2rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 0.7rem 1.8rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    opacity: 1;
    transition: all 0.3s ease;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    white-space: nowrap;
}

.generator-card:hover .card-button {
    transform: translateX(-50%) translateY(-5px);
    box-shadow: 0 8px 20px rgba(255, 107, 107, 0.4);
}

.btn-generate {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--text-light);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    width: 100%;
    max-width: 300px;
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.btn-generate:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

.btn-generate:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

#generateBtn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-light);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    width: 100%;
    max-width: 300px;
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

#generateBtn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

#generateBtn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Loading Spinner Animation */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Loading state for generate button */
#generateBtn.loading {
    background: linear-gradient(135deg, #95a5a6, #7f8c8d);
    cursor: wait;
    transform: none;
}

#generateBtn.loading:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(149, 165, 166, 0.3);
}

.loading-spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--text-light);
    animation: spin 1s ease-in-out infinite;
}

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

/* 定价模态框样式 */
.pricing-modal-content {
    max-width: 380px;
    padding: 0;
    position: relative;
    background: linear-gradient(135deg, var(--card-bg) 0%, #fafbfc 100%);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 107, 107, 0.1);
    overflow: hidden;
    animation: modalSlideIn 0.4s ease-out;
}

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

.pricing-modal-content .pricing-card {
    margin: 0;
    border-radius: 0;
    border: none;
    background: transparent;
    box-shadow: none;
    padding: 1.25rem;
    position: relative;
}

.pricing-modal-content .pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    width: 32px;
    height: 32px;
    font-size: 20px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    font-family: Arial, sans-serif;
    line-height: 1;
    z-index: 10;
}

.modal-close:hover {
    color: white;
    background: var(--primary);
    transform: scale(1.1);
}

.pricing-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(121, 134, 203, 0.1);
    border-top: 4px solid var(--primary);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pricing-modal-content .card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    gap: 0.5rem;
}

.pricing-modal-content .sheep-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-md);
    margin: 0;
}

.pricing-modal-content .sheep-icon::before {
    content: '🎭';
    font-size: 2rem;
}

.pricing-modal-content .card-header h3 {
    color: var(--text-primary);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-modal-content .price {
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0.75rem 0 1rem;
    position: relative;
}

.pricing-modal-content .price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-modal-content .features {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
    text-align: left;
    background: rgba(255, 107, 107, 0.02);
    border-radius: 10px;
    padding: 1rem;
    border: 1px solid rgba(255, 107, 107, 0.08);
}

.pricing-modal-content .features li {
    padding: 0.5rem 0;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 107, 107, 0.08);
}

.pricing-modal-content .features li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pricing-modal-content .features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    font-size: 1.1rem;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--success) 0%, #00a085 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.pricing-modal-content .features li:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.pricing-modal-content .btn-primary {
    width: 100%;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.3);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pricing-modal-content .btn-primary::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;
}

.pricing-modal-content .btn-primary:hover::before {
    left: 100%;
}

.pricing-modal-content .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 107, 0.4);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
}

.features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.features li {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

/* 主要内容区域 */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    main {
        flex-direction: row;
        align-items: flex-start;
        justify-content: center;
    }
}

.creation-panel {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    width: 100%;
}

@media (min-width: 768px) {
    .creation-panel {
        max-width: 500px;
    }
}

.upload-section h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* 上传区域样式 */
.upload-area {
    width: 100%;
    min-height: 200px;
    border: 2px dashed var(--primary-light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    background-color: rgba(121, 134, 203, 0.05);
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.upload-area:hover {
    border-color: var(--primary);
    background-color: rgba(121, 134, 203, 0.1);
}

.upload-area input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-content {
    text-align: center;
    padding: 1.5rem;
}

.upload-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23ff6b6b" d="M19.35 10.04C18.67 6.59 15.64 4 12 4 9.11 4 6.6 5.64 5.35 8.04 2.34 8.36 0 10.91 0 14c0 3.31 2.69 6 6 6h13c2.76 0 5-2.24 5-5 0-2.64-2.05-4.78-4.65-4.96zM14 13v4h-4v-4H7l5-5 5 5h-3z"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
}

.upload-content p {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-content span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 预览区域样式 */
.preview-section {
    margin-bottom: 1.5rem;
    text-align: center; /* 让整个预览区域居中 */
}

.image-preview {
    position: relative;
    display: inline-block;
    max-width: 100%;
    margin: 0 auto 1rem auto; /* 水平居中 */
}

.image-preview img {
    max-width: 100%;
    max-height: 400px; /* 增加最大高度 */
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: block;
    margin: 0 auto;
}

.remove-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #f44336;
    color: white;
    border: none;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.remove-btn:hover {
    background-color: #d32f2f;
    transform: scale(1.1);
}

.image-info {
    display: none; /* 隐藏图片信息显示区域 */
}

/* 限制警告样式 */
.limit-warning {
    display: none; /* 默认隐藏，通过JS显示 */
    background-color: rgba(255, 183, 77, 0.1);
    border: 1px solid var(--accent);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-top: 1rem;
    text-align: center;
}

.limit-warning p {
    margin: 0;
    color: #e65100;
    font-weight: 500;
}

.upgrade-link {
    color: var(--primary-dark);
    font-weight: 600;
    text-decoration: underline;
}

/* 结果区域样式 */
.result-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    padding: 2.5rem;
    margin-top: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.result-header h2 {
    color: var(--primary-dark);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    text-decoration: none;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
    gap: 0.5rem;
}

.download-btn:hover {
    background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.result-header .btn {
    padding: 0.5rem 1rem;
    font-size: 1rem;
}

.loading-message {
    display: none; /* 默认隐藏，通过JS显示 */
    text-align: center;
    padding: 2rem 0;
}

.sheep-loading {
    width: 80px;
    height: 80px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%23ff6b6b" d="M444.2,220.5c-24.3-24.3-60.3-31.5-91.8-18.2c-9.9-22.7-32.2-38.6-58.2-38.6h-78.5c-26,0-48.4,15.9-58.2,38.6 c-31.5-13.3-67.5-6.1-91.8,18.2c-30.8,30.8-30.8,80.8,0,111.6c30.8,30.8,80.8,30.8,111.6,0c6.8-6.8,12.2-14.5,16.2-22.7h122.9 c3.9,8.2,9.4,15.9,16.2,22.7c30.8,30.8,80.8,30.8,111.6,0C475,301.3,475,251.3,444.2,220.5z"/><circle fill="%23333" cx="180" cy="250" r="10"/><circle fill="%23333" cx="330" cy="250" r="10"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    margin: 0 auto 1rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

.loading-message p {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.result-container {
    display: none; /* 默认隐藏，通过JS显示 */
}

.result-container h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.image-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
    padding: 1rem;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid transparent;
}

.image-grid img:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: rgba(74, 144, 226, 0.3);
}

.error-message {
    display: none; /* 默认隐藏，通过JS显示 */
    color: #f44336;
    text-align: center;
    padding: 1rem;
    background-color: rgba(244, 67, 54, 0.1);
    border-radius: var(--border-radius);
    margin-top: 1.5rem;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sheep-footer {
    width: 30px;
    height: 30px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%23ff6b6b" d="M444.2,220.5c-24.3-24.3-60.3-31.5-91.8-18.2c-9.9-22.7-32.2-38.6-58.2-38.6h-78.5c-26,0-48.4,15.9-58.2,38.6 c-31.5-13.3-67.5-6.1-91.8,18.2c-30.8,30.8-30.8,80.8,0,111.6c30.8,30.8,80.8,30.8,111.6,0c6.8-6.8,12.2-14.5,16.2-22.7h122.9 c3.9,8.2,9.4,15.9,16.2,22.7c30.8,30.8,80.8,30.8,111.6,0C475,301.3,475,251.3,444.2,220.5z"/><circle fill="%23333" cx="180" cy="250" r="10"/><circle fill="%23333" cx="330" cy="250" r="10"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
}

/* Modal Styles */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--card-bg);
    margin: auto;
    padding: 2rem;
    border: 1px solid var(--border);
    width: 90%;
    max-width: 400px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.modal-content h3 {
    margin-top: 0;
    color: var(--primary-dark);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.modal-content input {
    width: 100%;
    padding: 0.75rem;
    margin: 10px 0;
    box-sizing: border-box;
    border-radius: 8px;
    border: 1px solid var(--border);
    background-color: var(--background);
}

.modal-buttons {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.modal-buttons button {
    padding: 0.75rem 1.5rem;
    margin: 0 0.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 80px;
}

.modal-buttons button:first-child {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.modal-buttons button:first-child:hover {
    background: linear-gradient(135deg, var(--primary-dark), #2563eb);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.modal-buttons button:last-child {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid var(--border);
}

.modal-buttons button:last-child:hover {
    background: #e5e7eb;
    transform: translateY(-1px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
    
    main {
        gap: 1.5rem;
    }
    
    .creation-panel,
    .result-section {
        padding: 1.5rem;
    }
    
    .upload-area {
        min-height: 180px;
    }
    
    .btn-generate {
        padding: 0.75rem 1.5rem;
    }
}

/* Pastel 风格生成器选择页样式（B 方案） */
.generator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.generator-card {
    display: block;
    background: linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.95));
    border: 1px solid rgba(78,205,196,0.25); /* secondary */
    border-radius: 20px;
    padding: 1.5rem 1.75rem;
    text-decoration: none;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.generator-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(800px 120px at -10% -10%, rgba(255,107,107,0.10), transparent 40%), /* primary */
      radial-gradient(800px 120px at 110% 110%, rgba(78,205,196,0.10), transparent 40%);   /* secondary */
    pointer-events: none;
}

.generator-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255,107,107,0.35);
}

.generator-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.4rem;
    color: var(--primary-dark);
}

.generator-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.55;
}

@media (max-width: 480px) {
    .generator-card { padding: 1.25rem 1.25rem; }
}
.btn-generate {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--text-light);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    width: 100%;
    max-width: 300px;
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.btn-generate:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

.btn-generate:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

#generateBtn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-light);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    width: 100%;
    max-width: 300px;
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

#generateBtn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

#generateBtn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Loading Spinner Animation */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Loading state for generate button */
#generateBtn.loading {
    background: linear-gradient(135deg, #95a5a6, #7f8c8d);
    cursor: wait;
    transform: none;
}

#generateBtn.loading:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(149, 165, 166, 0.3);
}

.loading-spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--text-light);
    animation: spin 1s ease-in-out infinite;
}

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

/* 定价模态框样式 */
.pricing-modal-content {
    max-width: 380px;
    padding: 0;
    position: relative;
    background: linear-gradient(135deg, var(--card-bg) 0%, #fafbfc 100%);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 107, 107, 0.1);
    overflow: hidden;
    animation: modalSlideIn 0.4s ease-out;
}

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

.pricing-modal-content .pricing-card {
    margin: 0;
    border-radius: 0;
    border: none;
    background: transparent;
    box-shadow: none;
    padding: 1.25rem;
    position: relative;
}

.pricing-modal-content .pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    width: 32px;
    height: 32px;
    font-size: 20px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    font-family: Arial, sans-serif;
    line-height: 1;
    z-index: 10;
}

.modal-close:hover {
    color: white;
    background: var(--primary);
    transform: scale(1.1);
}

.pricing-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(121, 134, 203, 0.1);
    border-top: 4px solid var(--primary);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pricing-modal-content .card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    gap: 0.5rem;
}

.pricing-modal-content .sheep-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-md);
    margin: 0;
}

.pricing-modal-content .sheep-icon::before {
    content: '🎭';
    font-size: 2rem;
}

.pricing-modal-content .card-header h3 {
    color: var(--text-primary);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-modal-content .price {
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0.75rem 0 1rem;
    position: relative;
}

.pricing-modal-content .price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-modal-content .features {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
    text-align: left;
    background: rgba(255, 107, 107, 0.02);
    border-radius: 10px;
    padding: 1rem;
    border: 1px solid rgba(255, 107, 107, 0.08);
}

.pricing-modal-content .features li {
    padding: 0.5rem 0;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 107, 107, 0.08);
}

.pricing-modal-content .features li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pricing-modal-content .features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    font-size: 1.1rem;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--success) 0%, #00a085 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.pricing-modal-content .features li:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.pricing-modal-content .btn-primary {
    width: 100%;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.3);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pricing-modal-content .btn-primary::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;
}

.pricing-modal-content .btn-primary:hover::before {
    left: 100%;
}

.pricing-modal-content .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 107, 0.4);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
}

.features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.features li {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

/* 主要内容区域 */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    main {
        flex-direction: row;
        align-items: flex-start;
        justify-content: center;
    }
}

.creation-panel {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    width: 100%;
}

@media (min-width: 768px) {
    .creation-panel {
        max-width: 500px;
    }
}

.upload-section h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* 上传区域样式 */
.upload-area {
    width: 100%;
    min-height: 200px;
    border: 2px dashed var(--primary-light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    background-color: rgba(121, 134, 203, 0.05);
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.upload-area:hover {
    border-color: var(--primary);
    background-color: rgba(121, 134, 203, 0.1);
}

.upload-area input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-content {
    text-align: center;
    padding: 1.5rem;
}

.upload-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23ff6b6b" d="M19.35 10.04C18.67 6.59 15.64 4 12 4 9.11 4 6.6 5.64 5.35 8.04 2.34 8.36 0 10.91 0 14c0 3.31 2.69 6 6 6h13c2.76 0 5-2.24 5-5 0-2.64-2.05-4.78-4.65-4.96zM14 13v4h-4v-4H7l5-5 5 5h-3z"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
}

.upload-content p {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-content span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 预览区域样式 */
.preview-section {
    margin-bottom: 1.5rem;
    text-align: center; /* 让整个预览区域居中 */
}

.image-preview {
    position: relative;
    display: inline-block;
    max-width: 100%;
    margin: 0 auto 1rem auto; /* 水平居中 */
}

.image-preview img {
    max-width: 100%;
    max-height: 400px; /* 增加最大高度 */
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: block;
    margin: 0 auto;
}

.remove-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #f44336;
    color: white;
    border: none;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.remove-btn:hover {
    background-color: #d32f2f;
    transform: scale(1.1);
}

.image-info {
    display: none; /* 隐藏图片信息显示区域 */
}

/* 限制警告样式 */
.limit-warning {
    display: none; /* 默认隐藏，通过JS显示 */
    background-color: rgba(255, 183, 77, 0.1);
    border: 1px solid var(--accent);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-top: 1rem;
    text-align: center;
}

.limit-warning p {
    margin: 0;
    color: #e65100;
    font-weight: 500;
}

.upgrade-link {
    color: var(--primary-dark);
    font-weight: 600;
    text-decoration: underline;
}

/* 结果区域样式 */
.result-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    padding: 2.5rem;
    margin-top: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.result-header h2 {
    color: var(--primary-dark);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    text-decoration: none;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
    gap: 0.5rem;
}

.download-btn:hover {
    background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.result-header .btn {
    padding: 0.5rem 1rem;
    font-size: 1rem;
}

.loading-message {
    display: none; /* 默认隐藏，通过JS显示 */
    text-align: center;
    padding: 2rem 0;
}

.sheep-loading {
    width: 80px;
    height: 80px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%23ff6b6b" d="M444.2,220.5c-24.3-24.3-60.3-31.5-91.8-18.2c-9.9-22.7-32.2-38.6-58.2-38.6h-78.5c-26,0-48.4,15.9-58.2,38.6 c-31.5-13.3-67.5-6.1-91.8,18.2c-30.8,30.8-30.8,80.8,0,111.6c30.8,30.8,80.8,30.8,111.6,0c6.8-6.8,12.2-14.5,16.2-22.7h122.9 c3.9,8.2,9.4,15.9,16.2,22.7c30.8,30.8,80.8,30.8,111.6,0C475,301.3,475,251.3,444.2,220.5z"/><circle fill="%23333" cx="180" cy="250" r="10"/><circle fill="%23333" cx="330" cy="250" r="10"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    margin: 0 auto 1rem;
    animation: bounce 2s infinite;
}