/* ==================== CSS 变量统一管理 ==================== */
:root {
    /* 颜色系统 */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(22, 22, 35, 0.6);
    --bg-card-hover: rgba(30, 30, 48, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 179, 237, 0.4);
    
    /* 主色调 - 蓝紫渐变（低饱和度高级感） */
    --primary-start: #4a6fa5;
    --primary-end: #7b5ea7;
    --accent-cyan: #5eead4;
    --accent-mint: #6ee7b7;
    
    /* 文字颜色 */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* 状态颜色 */
    --status-pending-bg: rgba(59, 130, 246, 0.1);
    --status-pending-border: rgba(59, 130, 246, 0.3);
    --status-running-bg: rgba(139, 92, 246, 0.1);
    --status-running-border: rgba(139, 92, 246, 0.3);
    --status-success-bg: rgba(34, 197, 94, 0.1);
    --status-success-border: rgba(34, 197, 94, 0.3);
    --status-error-bg: rgba(239, 68, 68, 0.1);
    --status-error-border: rgba(239, 68, 68, 0.3);
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 18px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 179, 237, 0.2);
    
    /* 过渡 */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== 基础重置 ==================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== 页面布局 ==================== */
.page {
    min-height: 100vh;
    position: relative;
}

/* 背景网格动画 */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background: 
        linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%),
        linear-gradient(rgba(99, 179, 237, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 179, 237, 0.03) 1px, transparent 1px);
    background-size: 100% 100%, 60px 60px, 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { background-position: 0 0, 0 0, 0 0; }
    100% { background-position: 0 0, 60px 60px, 60px 60px; }
}

/* 粒子效果 */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 8s ease-in-out infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 1s; background: var(--accent-mint); }
.particle:nth-child(3) { left: 35%; animation-delay: 2s; }
.particle:nth-child(4) { left: 50%; animation-delay: 3s; background: var(--accent-mint); }
.particle:nth-child(5) { left: 65%; animation-delay: 4s; }
.particle:nth-child(6) { left: 80%; animation-delay: 5s; background: var(--accent-mint); }
.particle:nth-child(7) { left: 90%; animation-delay: 6s; }

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

/* 渐变光晕 */
.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.bg-glow-1 {
    top: -200px;
    right: -100px;
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
}

.bg-glow-2 {
    bottom: -200px;
    left: -100px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-mint));
}

/* ==================== 头部样式 ==================== */
.header {
    position: relative;
    z-index: 10;
    padding: var(--spacing-xl) 8%;
    background: linear-gradient(180deg, rgba(18, 18, 26, 0.8) 0%, transparent 100%);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

/* 余额显示框 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.balance-box {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    backdrop-filter: blur(12px);
    animation: fadeInDown 0.6s ease-out;
    flex-shrink: 0;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.balance-box:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(94, 234, 212, 0.15);
}

.balance-label {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.balance-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1;
    min-width: 50px;
}

.balance-unit {
    font-size: 12px;
    color: var(--text-muted);
}

.balance-refresh {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    border-radius: 8px;
    color: var(--text-secondary);
    transition: transform 0.3s, color 0.3s;
    line-height: 1;
}

.balance-refresh:hover {
    color: var(--accent-cyan);
    transform: rotate(180deg);
}

.balance-refresh.spinning {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 搭建同款按钮 */
.btn-build-same {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-mint));
    color: #0a0a0f;
    font-size: 14px;
    font-weight: 700;
    border-radius: 14px;
    text-decoration: none;
    white-space: nowrap;
    transition: transform 0.2s, box-shadow 0.3s;
    animation: fadeInDown 0.6s ease-out 0.2s both;
}

.btn-build-same:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(94, 234, 212, 0.4);
}

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

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    color: var(--accent-cyan);
    backdrop-filter: blur(10px);
    animation: fadeInDown 0.6s ease-out;
}

.header-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.header h1 {
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: var(--spacing-sm) 0;
    letter-spacing: -0.5px;
    animation: fadeInDown 0.6s ease-out 0.1s both;
}

.header p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-top: 4px;
    animation: fadeInDown 0.6s ease-out 0.2s both;
}

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

/* ==================== 主容器 ==================== */
.container {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: var(--spacing-lg);
    padding: 0 8% var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
}

/* ==================== 面板通用样式 ==================== */
.panel {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease-out;
}

.left-panel {
    animation-delay: 0.1s;
    position: sticky;
    top: var(--spacing-lg);
    height: fit-content;
}

.right-panel {
    animation-delay: 0.2s;
}

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

/* ==================== 公告样式 ==================== */
.notice {
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    font-size: 13px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.notice::before {
    content: '⚡';
    flex-shrink: 0;
    margin-top: 2px;
}

/* ==================== 标签样式 ==================== */
.label {
    display: block;
    font-weight: 600;
    margin: var(--spacing-md) 0 10px;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.label:first-of-type {
    margin-top: 0;
}

/* ==================== 输入框和下拉框 ==================== */
.input,
.textarea {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    outline: none;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    transition: var(--transition-normal);
    font-family: inherit;
}

.input:hover,
.textarea:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.input:focus,
.textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.15), var(--shadow-glow);
    background: rgba(255, 255, 255, 0.05);
}

.input::placeholder,
.textarea::placeholder {
    color: var(--text-muted);
}

select.input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

select.input option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.textarea {
    height: 140px;
    resize: vertical;
    line-height: 1.6;
}

/* 字数统计 */
.textarea-wrapper {
    position: relative;
}

.char-count {
    position: absolute;
    bottom: 12px;
    right: 14px;
    font-size: 11px;
    color: var(--text-muted);
    pointer-events: none;
}

/* ==================== 网格布局 ==================== */
.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* ==================== 文件上传 ==================== */
.file-upload-wrapper {
    position: relative;
}

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

.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-normal);
    background: rgba(255, 255, 255, 0.02);
}

.file-upload-wrapper:hover .file-upload-area {
    border-color: var(--accent-cyan);
    background: rgba(94, 234, 212, 0.05);
}

.file-upload-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.file-upload-text {
    color: var(--text-secondary);
    font-size: 13px;
}

.file-upload-text span {
    color: var(--accent-cyan);
}

/* ==================== 预览区域 ==================== */
.preview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: var(--spacing-sm);
}

.preview img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
    cursor: pointer;
    position: relative;
}

.preview img:hover {
    border-color: var(--accent-cyan);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.preview img::after {
    content: '×';
    position: absolute;
    top: -6px;
    right: -6px;
    width: 18px;
    height: 18px;
    background: var(--status-error-bg);
    border: 1px solid var(--status-error-border);
    border-radius: 50%;
    color: #f87171;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}

.preview img:hover::after {
    opacity: 1;
}

/* ==================== 按钮样式 ==================== */
.btn {
    position: relative;
    width: 100%;
    margin-top: var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition-normal);
    font-family: inherit;
    letter-spacing: 0.5px;
}

.btn::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: var(--transition-slow);
}

.btn:hover:not(:disabled)::before {
    left: 100%;
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(74, 111, 165, 0.4), var(--shadow-glow);
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: linear-gradient(135deg, #4a5568, #2d3748);
}

/* 涟漪效果 */
.btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ==================== 提示信息 ==================== */
.tips {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.tips p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.tips p::before {
    content: '✦';
    color: var(--accent-cyan);
    flex-shrink: 0;
}

/* ==================== 状态区域样式 ==================== */
.status-container {
    margin-bottom: var(--spacing-md);
}

.status-box {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    transition: var(--transition-normal);
}

.status-icon {
    font-size: 28px;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

.status-content {
    flex: 1;
}

.status-text {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    line-height: 1.4;
}

.status-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* 不同状态样式 */
.status-pending {
    background: var(--status-pending-bg);
    border-color: var(--status-pending-border);
}

.status-pending .status-icon {
    animation: bounce-pending 1.5s ease-in-out infinite;
}

@keyframes bounce-pending {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.status-running {
    background: var(--status-running-bg);
    border-color: var(--status-running-border);
}

.status-running .status-icon {
    animation: spin-running 2s linear infinite;
}

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

.status-success {
    background: var(--status-success-bg);
    border-color: var(--status-success-border);
}

.status-error {
    background: var(--status-error-bg);
    border-color: var(--status-error-border);
}

/* 进度条 */
.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 12px;
}

.progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    transition: width 0.5s ease;
}

.progress-pending .progress-fill {
    width: 15%;
    background: #3b82f6;
    animation: pulse-progress 1.5s ease-in-out infinite;
}

.progress-running .progress-fill {
    width: 60%;
    background: linear-gradient(90deg, var(--primary-start), var(--primary-end), var(--accent-cyan));
    background-size: 200% 100%;
    animation: gradient-flow 2s linear infinite;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.progress-success .progress-fill {
    width: 100%;
    background: var(--accent-mint);
}

.progress-error .progress-fill {
    width: 100%;
    background: #f87171;
}

/* ==================== 任务ID盒子 ==================== */
.task-id-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-bottom: var(--spacing-md);
    font-size: 13px;
}

.task-id-label {
    color: var(--accent-cyan);
    font-weight: 600;
    flex-shrink: 0;
}

.task-id-value {
    flex: 1;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    color: var(--text-secondary);
    background: none;
    word-break: break-all;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 14px;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    color: var(--text-secondary);
}

.copy-btn:hover {
    background: rgba(94, 234, 212, 0.2);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* ==================== 结果区域样式 ==================== */
.result-area {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
    min-height: 200px;
}

/* 空状态 */
.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 36px;
}

.empty-state-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.empty-state-desc {
    font-size: 13px;
    color: var(--text-muted);
}

/* 结果卡片 */
.result-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 12px;
    transition: var(--transition-normal);
    overflow: hidden;
}

.result-card:hover {
    transform: translateY(-4px);
    border-color: rgba(94, 234, 212, 0.3);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* 淡入动画 */
.fade-in {
    animation: cardFadeIn 0.5s ease-out forwards;
    opacity: 0;
}

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 图片包装器 */
.result-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.3);
}

.result-img {
    width: 100%;
    display: block;
    cursor: pointer;
    transition: transform 0.4s ease;
}

.result-img:hover {
    transform: scale(1.05);
}

.result-video {
    width: 100%;
    display: block;
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.3);
}

/* 结果卡片遮罩层 */
.result-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.8) 100%);
    opacity: 0;
    transition: var(--transition-normal);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 12px;
    gap: 10px;
}

.result-img-wrapper:hover .result-overlay {
    opacity: 1;
}

.result-overlay-btn {
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
}

.result-overlay-btn:hover {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: var(--bg-primary);
}

/* 下载按钮（原有样式保留但优化） */
.download-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    color: white;
    font-size: 16px;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-img-wrapper:hover .download-btn {
    opacity: 1;
}

.download-btn:hover {
    transform: scale(1.15);
    background: var(--accent-cyan);
}

.result-link {
    display: block;
    margin-top: 10px;
    text-align: center;
    color: var(--accent-cyan);
    text-decoration: none;
    padding: 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    font-size: 14px;
}

.result-link:hover {
    background: rgba(94, 234, 212, 0.1);
}

/* ==================== 骨架屏样式 ==================== */
.skeleton-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 12px;
}

.skeleton-img {
    width: 100%;
    height: 180px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
}

.skeleton-text {
    height: 14px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 7px;
    margin-bottom: 8px;
}

.skeleton-text-short {
    height: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    width: 60%;
}

/* Shimmer 效果 */
.shimmer {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.03) 0%,
        rgba(255, 255, 255, 0.08) 50%,
        rgba(255, 255, 255, 0.03) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ==================== 错误卡片样式 ==================== */
.error-card {
    grid-column: 1 / -1;
    background: var(--status-error-bg);
    border: 1px solid var(--status-error-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

.error-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.error-message {
    color: #f87171;
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.retry-btn {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.4);
}

/* ==================== Lightbox 样式 ==================== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s;
    backdrop-filter: blur(10px);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: lightboxZoom 0.3s ease-out;
}

@keyframes lightboxZoom {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: white;
    font-size: 28px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
    border-color: var(--accent-cyan);
}

/* ==================== 响应式布局 ==================== */
@media screen and (max-width: 1024px) {
    .container {
        grid-template-columns: 1fr;
        padding: 0 var(--spacing-md) var(--spacing-lg);
    }
    
    .left-panel {
        position: relative;
        top: 0;
    }
}

@media screen and (max-width: 640px) {
    .header {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .balance-box {
        width: 100%;
        justify-content: center;
    }

    .header-actions {
        width: 100%;
        justify-content: center;
    }
    
    .header h1 {
        font-size: 26px;
    }
    
    .header p {
        font-size: 13px;
    }
    
    .grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .panel {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .result-area {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .btn {
        padding: 14px 20px;
    }
    
    .status-box {
        padding: 14px;
    }
    
    .status-icon {
        width: 40px;
        height: 40px;
        font-size: 22px;
    }
}

/* 触摸友好 */
@media (hover: none) and (pointer: coarse) {
    .result-overlay {
        opacity: 1;
        background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.7) 100%);
    }
    
    .download-btn {
        opacity: 1;
    }
}

/* ==================== 加载动画 ==================== */
.loading-dots {
    display: inline-flex;
    gap: 4px;
}

.loading-dots span {
    width: 6px;
    height: 6px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: dotBounce 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotBounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}