/**
 * 星河营业执照生成器 - 主样式文件
 * 现代化、响应式的CSS设计
 */

/* ===== 基础样式 ===== */
:root {
    /* 颜色变量 */
    --primary-color: #667eea;
    --primary-dark: #5a6fd8;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --error-color: #ef4444;
    
    /* 中性色 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    
    /* 字体 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* 间距 */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* 圆角 */
    --border-radius-sm: 0.375rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 过渡效果 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: #ffffff;
    overflow-x: hidden;
}

/* ===== 工具类 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

.btn-launch {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.btn-launch:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 12px 25px rgba(16, 185, 129, 0.4);
    transform: translateY(-3px);
}

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
    font-weight: 600;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
}

.nav-logo i {
    font-size: var(--font-size-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    font-weight: 500;
    color: var(--gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    transition: var(--transition-fast);
}

/* ===== 英雄区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: patternMove 20s ease-in-out infinite alternate;
}

@keyframes patternMove {
    0% { transform: translateX(-10px) translateY(-10px); }
    100% { transform: translateX(10px) translateY(10px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
    width: 100%;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.title-emoji {
    display: inline-block;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    opacity: 0.9;
}

.hero-description {
    font-size: var(--font-size-lg);
    opacity: 0.8;
    margin-bottom: var(--spacing-8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

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

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: white;
}

.card-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.card-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: white;
    font-size: var(--font-size-sm);
}

.feature-item i {
    font-size: var(--font-size-base);
    opacity: 0.8;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border: 2px solid white;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); }
    40% { transform: translateY(-10px) rotate(45deg); }
    60% { transform: translateY(-5px) rotate(45deg); }
}

/* ===== 统计数据 ===== */
.stats {
    padding: var(--spacing-16) 0;
    background: var(--gray-50);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-8);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-6);
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: transform var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-2);
}

.stat-label {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    font-weight: 500;
}

/* ===== 功能特性 ===== */
.features {
    padding: var(--spacing-20) 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-8);
}

.feature-card {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
}

.feature-icon i {
    font-size: var(--font-size-2xl);
    color: white;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--gray-600);
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
}

.feature-list li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: 600;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 50%;
    font-size: var(--font-size-xs);
}

/* ===== 系统架构 ===== */
.architecture {
    padding: var(--spacing-20) 0;
    background: var(--gray-50);
}

.architecture-diagram {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.arch-layer {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    width: 100%;
    text-align: center;
    margin-bottom: var(--spacing-6);
}

.arch-layer h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    color: var(--gray-900);
}

.arch-components {
    display: flex;
    justify-content: center;
    gap: var(--spacing-8);
    flex-wrap: wrap;
}

.arch-component {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    background: var(--gray-50);
    transition: all var(--transition-normal);
}

.arch-component:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.arch-component i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    transition: color var(--transition-normal);
}

.arch-component:hover i {
    color: white;
}

.arch-arrow {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin: var(--spacing-4) 0;
    animation: arrowBounce 2s infinite;
}

@keyframes arrowBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(5px); }
}

/* ===== 安全特性 ===== */
.security {
    padding: var(--spacing-20) 0;
    background: white;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.security-category {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.security-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    color: var(--gray-900);
}

.security-category h3 i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.security-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.security-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--gray-600);
}

.security-item i {
    color: var(--success-color);
    font-size: var(--font-size-sm);
}

/* ===== 效果展示 ===== */
.gallery {
    padding: var(--spacing-20) 0;
    background: white;
}

/* 展示切换标签 */
.gallery-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    color: var(--gray-600);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.tab-btn:hover:not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.tab-btn i {
    font-size: 18px;
}

/* 展示内容区域 */
.gallery-content {
    transition: all 0.3s ease;
}

.seal-effects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.seal-features-info h3 {
    text-align: center;
    font-size: 24px;
    color: var(--gray-900);
    margin-bottom: 30px;
    font-weight: 600;
}

.seal-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

/* ===== 轮播图通用样式 ===== */
.gallery-carousel,
.template-carousel {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-4) 0;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    gap: var(--spacing-6);
}

.gallery-item,
.template-card {
    flex: 0 0 320px;
    background: white;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.gallery-item:hover,
.template-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.carousel-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-lg);
    cursor: pointer;
    pointer-events: auto;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.carousel-btn.prev {
    margin-left: -25px;
}

.carousel-btn.next {
    margin-right: -25px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
    margin-top: var(--spacing-6);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--primary-color);
    opacity: 0.7;
}

/* 删除重复的gallery-item样式，已在轮播图通用样式中定义 */

.gallery-image {
    position: relative;
    height: 200px;
    background: var(--gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.preview-placeholder {
    text-align: center;
    color: var(--gray-400);
}

.preview-placeholder i {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-2);
    color: var(--primary-color);
}

.preview-placeholder h4 {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
    visibility: visible;
}

.gallery-info {
    padding: var(--spacing-6);
}

.gallery-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--gray-900);
}

.gallery-info p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ===== 使用方式 ===== */
.pricing {
    padding: var(--spacing-20) 0;
    background: var(--gray-50);
}

.usage-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-16);
}

.step-card {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    position: relative;
    transition: all var(--transition-normal);
}

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

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-6) auto var(--spacing-4);
}

.step-icon i {
    font-size: var(--font-size-2xl);
    color: white;
}

.step-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
}

.step-card p {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

.features-highlight {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
    margin-top: var(--spacing-12);
}

.highlight-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.highlight-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.highlight-card i {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-3);
}

.highlight-card h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--gray-900);
}

.highlight-card p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ===== 模板展示 ===== */
.templates {
    padding: var(--spacing-20) 0;
    background: white;
}

.template-categories {
    max-width: 1000px;
    margin: 0 auto;
}

.template-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-12);
    flex-wrap: wrap;
}

.template-btn {
    padding: var(--spacing-3) var(--spacing-6);
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.template-btn:hover,
.template-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-6);
}

.template-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.template-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.template-img,
.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.template-card:hover .template-img,
.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

.template-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.template-card:hover .template-overlay {
    opacity: 1;
    visibility: visible;
}

.template-info {
    padding: var(--spacing-6);
}

.template-info h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--gray-900);
}

.template-info p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

/* ===== 技术文档 ===== */
.docs {
    padding: var(--spacing-20) 0;
    background: white;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-8);
}

.doc-card {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    text-align: center;
    transition: all var(--transition-normal);
}

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

.doc-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
}

.doc-icon i {
    font-size: var(--font-size-2xl);
    color: white;
}

.doc-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--gray-900);
}

.doc-card p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.doc-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* ===== 联系我们 ===== */
.contact {
    padding: var(--spacing-20) 0;
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: var(--font-size-xl);
    color: white;
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-1);
    color: var(--gray-900);
}

.contact-details p {
    color: var(--gray-600);
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.contact-details a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-system {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
    border: 2px solid rgba(16, 185, 129, 0.2);
}

.contact-system .contact-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.system-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white !important;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none !important;
    transition: all 0.3s ease;
}

.system-link:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    color: white !important;
}

.system-link::after {
    content: '→';
    margin-left: 4px;
}

.contact-form {
    background: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--gray-900);
    color: white;
    padding: var(--spacing-20) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

.footer-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--gray-300);
}

.footer-section p {
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: var(--spacing-6);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-2);
}

.footer-section ul li a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-4);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-8);
    text-align: center;
    color: var(--gray-500);
}

.footer-bottom p {
    margin-bottom: var(--spacing-2);
}

/* ===== 图片模态框 ===== */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.image-modal.show {
    opacity: 1;
    visibility: visible;
}

.image-modal .modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.image-modal .modal-content {
    position: relative;
    background: white;
    border-radius: var(--border-radius-xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: scale(0.8);
    transition: transform var(--transition-normal);
}

.image-modal.show .modal-content {
    transform: scale(1);
}

.image-modal .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--gradient-primary);
    color: white;
}

.image-modal .modal-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.image-modal .modal-close {
    background: none;
    border: none;
    color: white;
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--border-radius);
    transition: background var(--transition-fast);
}

.image-modal .modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.image-modal .modal-body {
    padding: 0;
    max-height: 70vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    display: block;
}

.image-modal .modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-6);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-8);
    right: var(--spacing-8);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   功能介绍区域
   ========================================== */
.features-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8faff 0%, #e8f4fd 100%);
    position: relative;
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.feature-modules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

@media (max-width: 1024px) {
    .feature-modules {
        grid-template-columns: 1fr 1fr;
    }
}

.module-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
}

.license-module::before {
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.idcard-module::before {
    background: linear-gradient(90deg, #fbbf24, #f59e0b);
}

.seal-module::before {
    background: linear-gradient(90deg, #ff6b6b, #ee5a52);
}

.module-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.module-header {
    text-align: center;
    margin-bottom: 30px;
}

.module-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.license-module .module-icon {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.idcard-module .module-icon {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.seal-module .module-icon {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
}

.module-header h3 {
    font-size: 24px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 10px;
}

.module-header p {
    color: var(--gray-600);
    font-size: 16px;
}

.module-features {
    margin-bottom: 30px;
}

.module-features .feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #f1f5f9;
}

.module-features .feature-item:last-child {
    border-bottom: none;
}

.module-features .feature-item i {
    color: #10b981;
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.module-features .feature-item span {
    color: var(--gray-700);
    font-size: 15px;
    font-weight: 500;
}

.module-btn {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
}

.module-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.universal-card {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    align-items: center;
    gap: 30px;
    position: relative;
    z-index: 2;
}

.universal-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    flex-shrink: 0;
}

.universal-content {
    flex: 1;
}

.universal-content h3 {
    font-size: 24px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 10px;
}

.universal-content p {
    color: var(--gray-600);
    font-size: 16px;
    line-height: 1.6;
}

.universal-btn {
    padding: 12px 30px;
    font-weight: 600;
    flex-shrink: 0;
}

/* ==========================================
   API功能展示区域
   ========================================== */
.api-features {
    padding: 80px 0;
    background: white;
}

.api-features::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
}

.api-showcase {
    position: relative;
    z-index: 2;
}

.api-intro {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 60px;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.api-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.api-content h3 {
    font-size: 28px;
    color: var(--gray-900);
    margin-bottom: 15px;
    font-weight: 600;
}

.api-content p {
    color: var(--gray-600);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.api-highlight {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    background: linear-gradient(90deg, rgba(34, 197, 94, 0.1), rgba(59, 130, 246, 0.1));
    border-radius: 12px;
    border-left: 4px solid #22c55e;
}

.api-highlight i {
    color: #22c55e;
    font-size: 18px;
}

.api-highlight span {
    color: var(--gray-700);
    font-weight: 500;
}

.field-categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.auto-fields,
.manual-fields {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.auto-fields:hover,
.manual-fields:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.field-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f1f5f9;
}

.field-header i {
    color: #22c55e;
    font-size: 20px;
    margin-right: 10px;
}

.field-header h4 {
    font-size: 20px;
    color: var(--gray-900);
    font-weight: 600;
    flex: 1;
}

.field-tag {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.field-tag.auto {
    background: linear-gradient(90deg, #22c55e, #16a34a);
    color: white;
}

.field-tag.manual {
    background: linear-gradient(90deg, #f59e0b, #d97706);
    color: white;
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.field-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: #f8fafc;
    border-radius: 12px;
    transition: all 0.2s ease;
    border: 1px solid #e2e8f0;
}

.field-item:hover {
    background: #f1f5f9;
    transform: translateX(5px);
}

.field-item i {
    color: var(--primary);
    font-size: 16px;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.field-item span {
    color: var(--gray-700);
    font-weight: 500;
    flex: 1;
}

.field-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.field-content span {
    color: var(--gray-700);
    font-weight: 500;
}

.field-content small {
    color: var(--gray-500);
    font-size: 12px;
}

.api-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.benefit-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, #5b21b6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    flex-shrink: 0;
}

.benefit-content h4 {
    color: var(--gray-900);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.benefit-content p {
    color: var(--gray-600);
    font-size: 14px;
    line-height: 1.5;
}

/* 使用步骤中的标签样式 */
.step-highlight {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    align-items: center;
}

.auto-tag,
.manual-tag {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auto-tag {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.manual-tag {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

/* ==========================================
   价格方案区域
   ========================================== */
.pricing-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.pricing-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -30%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.pricing-section .section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.pricing-section .section-title {
    color: white;
}

.pricing-section .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    padding: 25px 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 3px solid transparent;
    position: relative;
    overflow: hidden;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.pricing-card.popular {
    border-color: #fbbf24;
    transform: scale(1.05);
}

.pricing-card.popular::before {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    height: 6px;
}

.popular-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-header h3 {
    color: var(--gray-900);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 10px;
}

.currency {
    font-size: 18px;
    color: var(--gray-600);
    margin-right: 4px;
}

.amount {
    font-size: 36px;
    font-weight: 700;
    color: #000000;
    line-height: 1;
}

.unit {
    font-size: 16px;
    color: var(--gray-600);
    margin-left: 4px;
}

.price-note {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 15px;
}

.original-price {
    color: var(--gray-400);
    text-decoration: line-through;
    font-size: 14px;
}

.save-money {
    color: #10b981;
    font-weight: 600;
    font-size: 14px;
}

.pricing-desc {
    color: var(--gray-600);
    font-size: 13px;
    margin-top: 8px;
}

.pricing-features {
    space-y: 12px;
}

.pricing-features .feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.pricing-features .feature-item i {
    color: #10b981;
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.pricing-features .feature-item span {
    color: var(--gray-700);
    font-size: 14px;
    font-weight: 500;
}

/* 功能说明统一展示 */
.features-summary {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 60px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: 2;
}

/* 使用方式CTA区域 */
.usage-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    margin-top: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.usage-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-content h3 {
    color: white;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 15px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    margin-bottom: 25px;
    line-height: 1.6;
}

.system-info {
    margin-top: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.system-info small {
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    line-height: 1.4;
}

/* ==========================================
   印章效果展示区域
   ========================================== */
.seal-gallery {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8faff 0%, #e8f4fd 100%);
    position: relative;
    overflow: hidden;
}

.seal-gallery::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.seal-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: start;
}

.seal-info h3 {
    font-size: 28px;
    color: var(--gray-900);
    margin-bottom: 20px;
    font-weight: 600;
}

.seal-info p {
    color: var(--gray-600);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.seal-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.seal-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: rgba(255, 107, 107, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(255, 107, 107, 0.2);
}

.seal-feature i {
    color: #ff6b6b;
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.seal-feature span {
    color: var(--gray-700);
    font-size: 14px;
    font-weight: 500;
}

.btn-seal {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    border: none;
    box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
}

.btn-seal:hover {
    background: linear-gradient(135deg, #ee5a52 0%, #dc4c4c 100%);
    box-shadow: 0 12px 25px rgba(255, 107, 107, 0.4);
    transform: translateY(-3px);
}

.seal-effects h3 {
    font-size: 24px;
    color: var(--gray-900);
    margin-bottom: 30px;
    font-weight: 600;
}

.seal-carousel {
    position: relative;
}

.seal-item {
    flex: 0 0 auto;
    margin-right: 20px;
}

.seal-image {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 4px solid #ff6b6b;
}

.seal-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.seal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.seal-image:hover .seal-overlay {
    opacity: 1;
}

.seal-image:hover .seal-img {
    transform: scale(1.1);
}

.seal-info-card {
    text-align: center;
}

.seal-info-card h4 {
    color: var(--gray-900);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.seal-info-card p {
    color: var(--gray-600);
    font-size: 14px;
}

.seal-system-info {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.system-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.system-features .feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.system-features .feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.system-features .feature-item i {
    color: #ff6b6b;
    font-size: 24px;
    width: 30px;
    text-align: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-content h4 {
    color: var(--gray-900);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.feature-content p {
    color: var(--gray-600);
    font-size: 14px;
    line-height: 1.5;
}

.seal-cta {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(238, 90, 82, 0.1));
    border-radius: 16px;
    border: 2px solid rgba(255, 107, 107, 0.2);
}

.seal-cta h3 {
    color: var(--gray-900);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.seal-cta p {
    color: var(--gray-600);
    font-size: 16px;
    margin-bottom: 25px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    min-width: 180px;
}

.features-summary h3 {
    color: var(--gray-900);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 30px;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.features-list .feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    background: rgba(34, 197, 94, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(34, 197, 94, 0.2);
    transition: all 0.3s ease;
}

.features-list .feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.15);
}

.features-list .feature-item i {
    color: #22c55e;
    font-size: 18px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.features-list .feature-item span {
    color: var(--gray-700);
    font-size: 15px;
    font-weight: 500;
    flex: 1;
    text-align: left;
}

/* 超值套餐 */
.super-deals {
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.super-deals h3 {
    text-align: center;
    color: white;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 40px;
}

.deals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.deal-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.deal-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
}

.deal-card.mega {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(59, 130, 246, 0.1));
    border-color: #22c55e;
}

.deal-card.ultimate {
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.1), rgba(79, 70, 229, 0.1));
    border-color: #8b5cf6;
}

.deal-header {
    text-align: center;
    margin-bottom: 20px;
}

.deal-header h4 {
    color: var(--gray-900);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.deal-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 10px;
}

.deal-price .currency {
    font-size: 16px;
    color: var(--gray-600);
}

.deal-price .amount {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
}

.deal-price .unit {
    font-size: 14px;
    color: var(--gray-600);
}

.deal-features {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-badge {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* 购买说明 */
.purchase-info {
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.info-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    color: white;
    font-size: 24px;
}

.info-card h4 {
    color: var(--gray-900);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.info-card p {
    color: var(--gray-600);
    font-size: 14px;
    line-height: 1.5;
}

/* 付款方式 */
.payment-methods {
    position: relative;
    z-index: 2;
}

.payment-methods h3 {
    text-align: center;
    color: white;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 40px;
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.payment-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.payment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.payment-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 32px;
}

.payment-card h4 {
    color: var(--gray-900);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.payment-card p {
    color: var(--gray-600);
    font-size: 14px;
    margin-bottom: 10px;
}

.payment-note {
    color: var(--gray-500) !important;
    font-size: 13px !important;
    font-style: italic;
    margin-bottom: 20px !important;
}

.payment-steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.step {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.payment-contact {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.contact-label {
    color: var(--gray-600);
    font-size: 13px;
}

.contact-info {
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
}

.payment-notice {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.notice-content {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
    text-align: center;
}

.notice-content i {
    color: #fbbf24;
    font-size: 20px;
    flex-shrink: 0;
}

.notice-content span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    line-height: 1.5;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-8);
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .arch-components {
        flex-direction: column;
        align-items: center;
    }
    
    .template-nav {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-3);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-4);
    }
    
    .usage-steps {
        grid-template-columns: 1fr;
    }
    
    .features-highlight {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .image-modal .modal-content {
        max-width: 95vw;
        margin: var(--spacing-4);
    }
    
    .modal-img {
        max-height: 60vh;
    }
    
    /* 轮播图移动端优化 */
    .gallery-item,
    .template-card {
        flex: 0 0 280px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .carousel-btn.prev {
        margin-left: -20px;
    }
    
    .carousel-btn.next {
        margin-right: -20px;
    }
    
    .template-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .template-btn {
        margin-bottom: var(--spacing-2);
        font-size: var(--font-size-sm);
        padding: var(--spacing-2) var(--spacing-4);
    }
    
    /* API功能移动端适配 */
    .api-intro {
        flex-direction: column;
        text-align: center;
        gap: 20px;
        padding: 25px;
    }
    
    .api-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .api-content h3 {
        font-size: 22px;
    }
    
    .field-categories {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .field-grid {
        grid-template-columns: 1fr;
    }
    
    .api-benefits {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
        gap: 15px;
        padding: 20px;
    }
    
    .step-highlight {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    /* 价格方案移动端适配 */
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .deals-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .payment-grid {
        grid-template-columns: 1fr;
    }
    
    .price .amount {
        font-size: 36px;
    }
    
    .deal-price .amount {
        font-size: 28px;
    }
    
    .super-deals h3 {
        font-size: 24px;
    }
    
    .payment-methods h3 {
        font-size: 24px;
    }
    
    .notice-content {
        flex-direction: column;
        text-align: center;
    }
    
    /* 功能说明移动端适配 */
    .features-list {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .features-summary {
        padding: 25px;
    }
    
    .features-summary h3 {
        font-size: 20px;
    }
    
    /* 印章展示移动端适配 */
    .seal-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .seal-features {
        grid-template-columns: 1fr;
    }
    
    .system-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        min-width: 250px;
    }
    
    .seal-image {
        width: 150px;
        height: 150px;
    }
    
    .seal-info h3 {
        font-size: 24px;
    }
    
    .seal-effects h3 {
        font-size: 20px;
    }
    
    /* 功能模块移动端适配 */
    .feature-modules {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .module-card {
        padding: 30px 25px;
    }
    
    .module-header h3 {
        font-size: 20px;
    }
    
    .module-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .universal-card {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .gallery-tabs {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .tab-btn {
        width: 250px;
        justify-content: center;
    }
    
    .seal-effects-grid {
        grid-template-columns: 1fr;
    }
    
    .seal-features-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   跳转效果高亮样式
   ========================================== */
.gallery.highlight {
    transition: box-shadow 0.6s ease;
}