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

:root {
    /* 主色调 */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --secondary-hover: #475569;
    --secondary-light: #f1f5f9;
    
    /* 状态颜色 */
    --success-color: #059669;
    --success-light: #d1fae5;
    --success-dark: #047857;
    --warning-color: #d97706;
    --warning-light: #fef3c7;
    --warning-dark: #b45309;
    --error-color: #dc2626;
    --error-light: #fee2e2;
    --error-dark: #b91c1c;
    --info-color: #0891b2;
    --info-light: #cffafe;
    --info-dark: #0e7490;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-overlay: rgba(0, 0, 0, 0.5);
    
    /* 文字颜色 */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    /* 边框颜色 */
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --border-focus: var(--primary-color);
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 10px 10px -5px rgb(0 0 0 / 0.04);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* 过渡动画 */
    --transition: all 0.2s ease-in-out;
    --transition-fast: all 0.15s ease-out;
    --transition-slow: all 0.3s ease-in-out;
    
    /* Z-index层级 */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    position: relative;
    overflow-x: hidden;
}

/* 动态背景渐变动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(37, 99, 235, 0.05) 0%,
        rgba(139, 92, 246, 0.05) 25%,
        rgba(236, 72, 153, 0.05) 50%,
        rgba(59, 130, 246, 0.05) 75%,
        rgba(37, 99, 235, 0.05) 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    z-index: -1;
    pointer-events: none;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* 浮动装饰球 */
body::after {
    content: '';
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: -250px;
    right: -250px;
    animation: float 20s ease-in-out infinite;
    z-index: -1;
    pointer-events: none;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-100px, 100px) scale(1.2);
        opacity: 0.5;
    }
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: linear-gradient(to right, 
        rgba(255, 255, 255, 0.9) 0%,
        rgba(255, 255, 255, 0.85) 100%);
    transition: all 0.3s ease;
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--primary-color),
        #8b5cf6,
        #ec4899,
        var(--primary-color));
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
    opacity: 0.6;
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.brand-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.brand-text span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-color);
    background-color: var(--primary-light);
    font-weight: 600;
}

/* 主要内容 */
.main-content {
    min-height: calc(100vh - 70px);
    padding: var(--spacing-2xl) 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 页面标题 */
.page-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl) 0;
}

.page-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::after {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), #7c3aed);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: var(--success-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-success:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-icon {
    font-size: 1rem;
}

/* 卡片样式 */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        var(--primary-color),
        #8b5cf6,
        #ec4899,
        var(--primary-color));
    background-size: 200% 100%;
    transform: scaleX(0);
    transition: transform 0.5s ease;
}

.card:hover::before {
    transform: scaleX(1);
    animation: shimmer 2s linear infinite;
}

.card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px) scale(1.01);
    border-color: var(--primary-color);
}

.card:hover::after {
    opacity: 1;
    animation: ripple 2s ease-out infinite;
}

@keyframes ripple {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

/* 卡片间距优化 */
.card + .card {
    margin-top: var(--spacing-lg);
}

/* 网格布局 */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* 首页样式 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: pulse 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 255, 255, 0.03) 10px,
        rgba(255, 255, 255, 0.03) 20px
    );
    animation: slide 20s linear infinite;
    pointer-events: none;
}

@keyframes slide {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.visual-element {
    font-size: 3rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 功能特性 */
.features-section {
    padding: 4rem 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent,
        rgba(37, 99, 235, 0.1),
        transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-color);
}

.feature-icon {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card:hover .feature-icon {
    transform: scale(1.2) rotate(5deg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.feature-link:hover {
    color: var(--primary-hover);
}

/* 技术架构 */
.architecture-section {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.architecture-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 3rem;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 150px;
    position: relative;
    transition: transform 0.3s ease;
}

.flow-step:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
}

.step-number::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6, #ec4899);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.flow-step:hover .step-number {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.flow-step:hover .step-number::before {
    opacity: 0.6;
    animation: rotate 2s linear infinite;
}

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

.step-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 700;
}

/* 快速开始 */
.quickstart-section {
    padding: 4rem 0;
    background: var(--bg-primary);
}

.quickstart-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-icon {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.quickstart-action {
    text-align: center;
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-text {
    text-align: center;
    grid-column: 1 / -1;
}

.footer-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin: 0.5rem 0;
}

.footer-text p:first-child {
    font-weight: 600;
    color: white;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section ul {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* 用户端样式 */
.progress-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
    position: relative;
}

.progress-indicator::before {
    content: '';
    position: absolute;
    top: 1.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border-color);
    z-index: 1;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 3rem;
    height: 3rem;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.progress-step.active .step-number {
    background: var(--primary-color);
    color: white;
}

.step-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    font-weight: 500;
}

.progress-step.active .step-label {
    color: var(--primary-color);
    font-weight: 600;
}

/* 步骤区域 */
.step-section {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.step-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, 
        var(--primary-color),
        #8b5cf6,
        #ec4899);
    transform: scaleY(0);
    transition: transform 0.4s ease;
}

.step-section:hover::before {
    transform: scaleY(1);
}

.step-section:hover {
    box-shadow: var(--shadow-xl);
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.95);
}

.step-header {
    margin-bottom: 1.5rem;
}

.step-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.step-header p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.step-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.action-panel {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
}

.status-indicator.loading {
    background: #fef3c7;
    color: #92400e;
}

.status-indicator.success {
    background: #d1fae5;
    color: #065f46;
}

.status-indicator.error {
    background: #fee2e2;
    color: #991b1b;
}

.status-indicator.waiting {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.result-panel {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.result-panel h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.result-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.result-item label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.result-item span,
.result-item code {
    font-family: 'Monaco', 'Menlo', monospace;
    background: var(--bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
}

/* 场景选择 */
.scenario-options {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.upload-section {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.upload-section label {
    font-weight: 500;
    color: var(--text-secondary);
}

.upload-section input[type="file"] {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    background: var(--bg-primary);
}

/* 可视化结果 */
.visualization-section {
    margin-top: 1.5rem;
}

.visualization-section h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.image-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.image-item label {
    font-weight: 500;
    color: var(--text-secondary);
}

.result-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

/* 矩阵预览 */
.matrix-preview {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    overflow-x: auto;
    max-height: 300px;
}

/* 凭证详情 */
.credential-details h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.detail-item label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* 披露选项 */
.disclosure-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.disclosure-options label {
    font-weight: 500;
    color: var(--text-secondary);
}

.attribute-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.attribute-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.attribute-checkbox:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.attribute-checkbox input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
}

/* 操作历史 */
.history-section {
    margin-top: 3rem;
}

.history-timeline {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.timeline-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.timeline-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.timeline-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.timeline-content p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.timeline-time {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.timeline-item.info .timeline-icon {
    color: var(--info-color);
}

.timeline-item.success .timeline-icon {
    color: var(--success-color);
}

.timeline-item.warning .timeline-icon {
    color: var(--warning-color);
}

.timeline-item.error .timeline-icon {
    color: var(--error-color);
}

/* 代码块 */
.code-block {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    overflow-x: auto;
    max-height: 400px;
}

/* 表单输入优化 */
input[type="text"],
input[type="password"],
input[type="email"],
input[type="file"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input:disabled,
select:disabled,
textarea:disabled {
    background: var(--bg-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

/* 模态框优化 */
.modal {
    display: none;
    position: fixed;
    z-index: var(--z-modal);
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-overlay);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background-color: var(--bg-primary);
    margin: 5% auto;
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 800px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease-out;
    max-height: 90vh;
    overflow-y: auto;
}

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

.close {
    color: var(--text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
}

.close:hover,
.close:focus {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* 加载状态优化 */
.loading-spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--spacing-sm);
        flex-wrap: wrap;
        height: auto;
        min-height: 70px;
    }
    
    .nav-menu {
        gap: var(--spacing-sm);
        order: 3;
        width: 100%;
        margin-top: var(--spacing-sm);
        padding-top: var(--spacing-sm);
        border-top: 1px solid var(--border-color);
        flex-wrap: wrap;
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .page-header {
        margin-bottom: var(--spacing-xl);
    }
    
    .page-header h2 {
        font-size: 1.75rem;
    }
    
    .page-header p {
        font-size: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .main-content {
        padding: var(--spacing-lg) 0;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .progress-indicator {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .progress-indicator::before {
        display: none;
    }
    
    .step-section {
        padding: var(--spacing-lg);
    }
    
    .step-header h3 {
        font-size: 1.25rem;
    }
    
    .action-panel {
        flex-direction: column;
        align-items: stretch;
    }
    
    .scenario-options {
        flex-direction: column;
    }
    
    .upload-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: var(--spacing-lg);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .card {
        padding: var(--spacing-md);
    }
}

/* 验证方样式 */
.quick-actions {
    margin-bottom: 3rem;
}

.action-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.action-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.action-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.action-card.primary {
    border-left: 4px solid var(--primary-color);
}

.action-card.secondary {
    border-left: 4px solid var(--secondary-color);
}

.action-card.info {
    border-left: 4px solid var(--info-color);
}

.card-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.card-content {
    flex: 1;
}

.card-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.card-stats {
    display: flex;
    gap: 1rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-dot.active {
    background: var(--success-color);
}

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

/* 凭证选择 */
.credential-selection {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.selection-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.input-with-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.input-with-actions input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: var(--transition);
}

.input-with-actions input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-actions {
    display: flex;
    gap: 0.5rem;
}

.selection-options {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* 验证流程 */
.verification-flow {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* 验证页专用：去掉全局 .flow-step 的 max-width 限制，铺满容器 */
.verification-flow .flow-step {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding: 1.25rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    max-width: none;
    width: 100%;
}

/* 第3步专用样式 */
.constraint-expression {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 200px;
    overflow: auto;
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(90deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.constraint-expression::before {
    content: '📋';
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    font-size: 1rem;
    opacity: 0.3;
}

.constraint-expression:empty::before {
    content: '等待加载约束表达式...';
    color: var(--text-muted);
    font-style: italic;
}

.loading-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-style: italic;
}

.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.no-data {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    padding: 1rem;
}

.matrix-container {
    position: relative;
}

.scrollable-matrix {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    padding: 0.75rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.4;
}

.scrollable-matrix::-webkit-scrollbar {
    width: 8px;
}

.scrollable-matrix::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.scrollable-matrix::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.scrollable-matrix::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

.tree-image-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.tree-preview-image {
    max-width: 100%;
    max-height: 300px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.tree-preview-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.tree-preview-image:active {
    transform: scale(0.98);
}

.tree-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.placeholder-icon {
    font-size: 2rem;
    opacity: 0.6;
}

.placeholder-text {
    font-size: 0.875rem;
    text-align: center;
}

.step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.step-number {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.step-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.step-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.step-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    min-width: 120px;
    justify-content: center;
}

/* 详细步骤容器，置于每个步骤下方，避免横向挤压导致扭曲 */
.step-details {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.step-details .code-block { max-height: 260px; }
.step-details .detail-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.step-status.waiting {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.step-status.loading {
    background: #fef3c7;
    color: #92400e;
}

.step-status.success {
    background: #d1fae5;
    color: #065f46;
}

.step-status.error {
    background: #fee2e2;
    color: #991b1b;
}

/* 验证结果 */
.verification-results {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.result-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

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

.result-header h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.result-status {
    display: flex;
    align-items: center;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge.success {
    background: #d1fae5;
    color: #065f46;
}

.status-badge.error {
    background: #fee2e2;
    color: #991b1b;
}

.result-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item label {
    font-weight: 500;
    color: var(--text-secondary);
}

.result-item span,
.result-item code {
    font-family: 'Monaco', 'Menlo', monospace;
    background: var(--bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
}

/* 详细信息标签页 */
.detail-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

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

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    min-height: 200px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.summary-item label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.summary-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* 验证图像 */
.verification-images {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.image-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.image-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.image-header h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.image-actions {
    display: flex;
    gap: 0.5rem;
}

.image-container {
    position: relative;
    margin-bottom: 1rem;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.verification-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 2rem;
}

.placeholder-text {
    font-size: 0.875rem;
}

.image-info {
    text-align: center;
}

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

.info-text.success {
    color: var(--success-color);
}

.images-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* 收件箱管理 */
.inbox-management {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.inbox-content {
    margin-top: 1.5rem;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.empty-state h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 0.875rem;
}

.inbox-files {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.inbox-file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.inbox-file-item:hover {
    background: var(--bg-primary);
    border-color: var(--border-hover);
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.file-path {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-family: 'Monaco', 'Menlo', monospace;
}

.file-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

/* 发证方样式 */
.system-overview {
    margin-bottom: 3rem;
}

.overview-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.overview-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.overview-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.overview-card .card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.overview-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.stat-number,
.stat-status {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* 运行历史 */
.run-history {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.header-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.history-filters {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.filter-group select,
.filter-group input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    background: var(--bg-primary);
}

.history-table {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    background: var(--bg-tertiary);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.data-table tr:hover {
    background: var(--bg-tertiary);
}

.loading-row {
    text-align: center;
}

.loading-cell {
    padding: 2rem !important;
}

.loading-spinner {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.empty-row {
    text-align: center;
}

.empty-cell {
    padding: 2rem !important;
}

/* 会话详情 */
.session-details {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.details-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.session-info {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-item label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.info-item span {
    font-weight: 600;
    color: var(--text-primary);
}

.session-files h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.file-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.file-category h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.file-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

.empty-files {
    text-align: center;
    padding: 1rem;
    color: var(--text-muted);
    font-style: italic;
}

.session-logs h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.log-content {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.log-text {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin: 0;
}

/* 系统监控 */
.system-monitoring {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.monitoring-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.monitoring-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.monitoring-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.value-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.value-status {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--success-color);
}

.progress-bar {
    width: 100%;
    height: 0.5rem;
    background: var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

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

.monitoring-chart {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.monitoring-chart h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.chart-container {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 2rem;
}

.placeholder-text {
    font-size: 0.875rem;
}

/* 快速操作 */
.quick-actions {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.action-btn:hover {
    background: var(--bg-primary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.action-icon {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.action-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.action-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* 动画效果 */
.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

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

/* 滚动视差效果 */
.parallax {
    transition: transform 0.3s ease-out;
}

/* 闪烁效果 */
.shimmer {
    background: linear-gradient(90deg, 
        var(--bg-primary) 0%,
        rgba(37, 99, 235, 0.1) 50%,
        var(--bg-primary) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s linear infinite;
}

/* 脉冲动画 */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* 旋转动画 */
.rotate {
    animation: rotate 3s linear infinite;
}

/* 浮动动画 */
.float {
    animation: float 3s ease-in-out infinite;
}

/* 玻璃态效果 */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* 渐变文字效果 */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}

/* 粒子背景效果（可选） */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 15s infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100px) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

/* 工具函数 */
.showSection {
    display: block !important;
}

.hideSection {
    display: none !important;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .action-cards {
        grid-template-columns: 1fr;
    }
    
    .action-card {
        flex-direction: column;
        text-align: center;
    }
    
    .verification-flow .flow-step { 
        text-align: left; 
        width: 100%; 
        max-width: none; 
    }
    
    .step-header {
        flex-direction: column;
        text-align: center;
    }
    
    .constraint-expression {
        max-height: 100px;
        font-size: 0.75rem;
    }
    
    .scrollable-matrix {
        max-height: 200px;
    }
    
    .tree-preview-image {
        max-height: 200px;
    }
    
    .results-summary {
        grid-template-columns: 1fr;
    }
    
    .images-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-cards {
        grid-template-columns: 1fr;
    }
    
    .history-filters {
        flex-direction: column;
    }
    
    .file-categories {
        grid-template-columns: 1fr;
    }
    
    .monitoring-grid {
        grid-template-columns: 1fr;
    }
    
    .actions-grid {
        grid-template-columns: 1fr;
    }
    
    .action-btn {
        flex-direction: column;
        text-align: center;
    }
}

/* BLS验证步骤样式 */
.bls-verification-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 1rem;
}

.bls-param-section,
.bls-comparison-section {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.bls-param-section h5,
.bls-comparison-section h5 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.param-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.param-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.param-item label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.param-value {
    background: var(--bg-primary);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    word-break: break-all;
    color: var(--text-secondary);
}

.verification-result {
    background: var(--success-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-align: center;
    display: inline-block;
}

.comparison-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comparison-formula {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    text-align: center;
}

.formula-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.formula-code {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 1rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.comparison-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.comparison-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.comparison-item label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.comparison-value {
    background: var(--bg-primary);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    word-break: break-all;
    color: var(--text-secondary);
    max-height: 80px;
    overflow-y: auto;
}

/* 可点击图片样式 */
.clickable-image {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.clickable-image:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.clickable-image:active {
    transform: scale(0.98);
}

/* 图片错误状态样式 */
.image-error {
    text-align: center;
    padding: 2rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 2px dashed var(--border-color);
    margin: 1rem 0;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--error-color);
}

.error-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.error-details {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-family: 'Monaco', 'Menlo', monospace;
    word-break: break-all;
    background: var(--bg-primary);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .bls-verification-grid {
        gap: 1rem;
    }
    
    .bls-param-section,
    .bls-comparison-section {
        padding: 1rem;
    }
    
    .param-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-details {
        grid-template-columns: 1fr;
    }
    
    .param-value,
    .comparison-value {
        font-size: 0.8rem;
        padding: 0.5rem;
    }
}

/* 布局与溢出优化 */
.step-section {
    overflow: hidden;
}

.step-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-panel,
.visualization-section,
.matrix-preview {
    overflow: hidden;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

/* 文字与代码可换行，避免溢出 */
.result-item code,
.result-item span,
#issuerConstraintExpr,
#issuerRandomVector,
#issuerSecretValue,
#issuerAggVector,
#issuerAggSecret,
#issuerAggD,
#issuerAggSD,
#issuerAggPK,
#issuerAggSig {
    white-space: pre-wrap;
    word-break: break-all;
    overflow-wrap: anywhere;
}

/* 代码块与矩阵预览设置滚动区域，避免撑破容器 */
.code-block,
.matrix-preview {
    max-height: 320px;
    overflow: auto;
    white-space: pre-wrap;
}

/* 图片自适应且不溢出容器 */
.result-image {
    max-width: 100%;
    max-height: 360px;
    height: auto;
    display: block;
    object-fit: contain;
    background: var(--bg-primary);
}

/* 图片网格在小容器内滚动，避免超高 */
.image-grid {
    gap: 1rem;
}

/* 重要值高亮（用于 s 值等） */
.value-emphasis,
#issuerSecretValue,
#issuerAggSecret {
    color: #b91c1c;
    font-weight: 700;
}

/* KPI 样式：用于突出展示 s/d 等核心数值 */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.kpi-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
}

.kpi-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    word-break: break-all;
}

.kpi-value.emphasis-s { color: #b91c1c; }
.kpi-value.emphasis-d { color: var(--primary-color); }

/* 面板内创建可滚动区（可复用） */
.scroll-area-300 { max-height: 300px; overflow: auto; }
.scroll-area-400 { max-height: 400px; overflow: auto; }

/* 让面板内元素之间留白，防止挤在一起 */
.result-panel h4 { margin-bottom: 0.75rem; }
.result-panel .result-grid + .matrix-preview { margin-top: 0.75rem; }
.result-panel .visualization-section { margin-top: 0.75rem; }

/* 行为按钮保持在一行不换行，避免错位 */
.action-panel { flex-wrap: wrap; gap: 0.75rem; }

/* 小屏优化：减少图片高度，避免撑满 */
@media (max-width: 768px) {
    .result-image { max-height: 240px; }
    .code-block, .matrix-preview { max-height: 240px; }
}

/* 图片查看器样式 */
.image-viewer-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
}

.image-viewer-modal.active {
    display: block;
    animation: fadeIn 0.2s ease-out;
}

.image-viewer-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.image-viewer-header {
    background: rgba(0, 0, 0, 0.85);
    color: var(--text-inverse);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
}

.image-viewer-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.image-viewer-body {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl);
    overflow: auto;
}

.image-viewer-container {
    position: relative;
    max-width: 100%;
    max-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-viewer-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    cursor: grab;
    transition: transform 0.2s ease;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
}

.image-viewer-container img:active {
    cursor: grabbing;
}

.zoom-controls {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 10;
}

.zoom-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--text-inverse);
    padding: var(--spacing-sm);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.125rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.zoom-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.zoom-info {
    position: absolute;
    top: var(--spacing-xl);
    left: var(--spacing-xl);
    background: rgba(0, 0, 0, 0.7);
    color: var(--text-inverse);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    backdrop-filter: blur(10px);
    z-index: 10;
}

/* 可点击图片样式增强 */
.clickable-image {
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.clickable-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.clickable-image:active {
    transform: scale(0.98);
}

/* 图片操作按钮区域 */
.image-actions {
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* 凭证预览样式 */
.credential-preview {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.credential-image {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    max-width: 100%;
    height: auto;
}

.credential-actions {
    text-align: center;
    margin-top: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* 披露三元组样式 */
.disclosed-triples {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    border: 1px solid var(--border-color);
}

.triple-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.triple-item:last-child {
    border-bottom: none;
}

/* 下拉菜单样式 */
.dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    z-index: var(--z-dropdown);
    overflow: hidden;
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.dropdown-item:first-child {
    border-top-left-radius: var(--radius-md);
    border-top-right-radius: var(--radius-md);
}

.dropdown-item:last-child {
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

/* 用户菜单样式 */
.user-info {
    position: relative;
}

/* 通用图片容器（兼容旧类名） */
.image-container {
    position: relative;
    max-width: 100%;
    max-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* 响应式：图片查看器 */
@media (max-width: 768px) {
    .zoom-controls {
        top: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .zoom-info {
        top: var(--spacing-md);
        left: var(--spacing-md);
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .image-viewer-body {
        padding: var(--spacing-md);
    }
    
    .credential-actions {
        flex-direction: column;
    }
    
    .credential-actions .btn {
        width: 100%;
    }
}