/* mirror_flow:p6_ai_generated */
:root {
    --color-primary: #1a3c5e;
    --color-primary-dark: #0f2740;
    --color-primary-light: #2a5580;
    --color-accent: #e67e22;
    --color-accent-hover: #d35400;
    --color-bg: #f5f3f0;
    --color-bg-white: #ffffff;
    --color-bg-light: #eaebe8;
    --color-bg-dark: #2c2c2c;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-on-dark: #e0e0e0;
    --color-border: #d5d5d5;
    --color-border-light: #e8e8e8;
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-danger: #c0392b;
    --font-family-base: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    --font-family-heading: "Microsoft YaHei", "SimHei", "PingFang SC", sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --border-radius-sm: 3px;
    --border-radius-md: 6px;
    --border-radius-lg: 10px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --max-width: 1200px;
    --header-height: 80px;
    --header-height-mobile: 60px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    line-height: 1.3;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-md); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.site-header {
    background: var(--color-bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    border-bottom: 3px solid var(--color-primary);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.site-logo img {
    height: 50px;
    width: auto;
}

.site-logo .logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary-dark);
    white-space: nowrap;
}

.site-logo .logo-subtitle {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    display: block;
    font-weight: 400;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 0;
}

.main-nav a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text);
    font-weight: 500;
    font-size: var(--font-size-sm);
    letter-spacing: 0.02em;
    position: relative;
    white-space: nowrap;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-primary);
    background: rgba(26, 60, 94, 0.04);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 70%;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    flex-direction: column;
    gap: 5px;
}

.mobile-nav-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--color-primary-dark);
    border-radius: 2px;
    transition: var(--transition-base);
}

.breadcrumb {
    background: var(--color-bg-light);
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
}

.breadcrumb .container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    align-items: center;
    color: var(--color-text-light);
}

.breadcrumb a {
    color: var(--color-text-light);
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

.breadcrumb .separator {
    color: var(--color-border);
    user-select: none;
}

.breadcrumb .current {
    color: var(--color-primary);
    font-weight: 600;
}

.hero-banner {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-primary-light) 100%);
    color: #ffffff;
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -80px;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    pointer-events: none;
}

.hero-banner::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    pointer-events: none;
}

.hero-banner .container {
    position: relative;
    z-index: 1;
}

.hero-banner h1 {
    color: #ffffff;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.hero-banner p {
    font-size: var(--font-size-md);
    color: rgba(255, 255, 255, 0.85);
    max-width: 650px;
    margin-bottom: var(--spacing-xl);
}

.hero-banner .btn-primary {
    background: var(--color-accent);
    color: #ffffff;
    border: none;
    padding: 14px 36px;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    letter-spacing: 0.03em;
    transition: background var(--transition-fast), transform var(--transition-fast);
    display: inline-block;
}

.hero-banner .btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    color: #ffffff;
}

.section {
    padding: var(--spacing-3xl) 0;
}

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

.section-title h2 {
    display: inline-block;
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}

.section-title p {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

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

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-xl);
}

.card {
    background: var(--color-bg-white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
    display: flex;
    flex-direction: column;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--color-bg-light);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

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

.card-body {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-body h3 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-sm);
}

.card-body p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    flex: 1;
}

.card-body .btn-link {
    align-self: flex-start;
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast), gap var(--transition-fast);
}

.card-body .btn-link:hover {
    color: var(--color-accent);
    gap: 10px;
}

.card-body .btn-link::after {
    content: '→';
    font-size: 1.1em;
}

.feature-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.feature-item {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-bg-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.feature-item:hover {
    box-shadow: var(--shadow-md);
}

.feature-item .feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.5rem;
}

.feature-item h4 {
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.about-section {
    background: var(--color-bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-image {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--color-bg-light);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text h3 {
    margin-bottom: var(--spacing-lg);
}

.about-text .stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.about-text .stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-bg-light);
    border-radius: var(--border-radius-sm);
}

.about-text .stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-accent);
    display: block;
}

.about-text .stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.news-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.news-item:hover {
    box-shadow: var(--shadow-md);
}

.news-item .news-date {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: #ffffff;
    border-radius: var(--border-radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1.2;
}

.news-date .day {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.news-date .month {
    font-size: var(--font-size-xs);
}

.news-item .news-content h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.news-item .news-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
}

.contact-section {
    background: var(--color-primary-dark);
    color: var(--color-text-on-dark);
}

.contact-section .section-title h2 {
    color: #ffffff;
}

.contact-section .section-title p {
    color: rgba(255, 255, 255, 0.7);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.contact-card {
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    text-align: center;
    transition: background var(--transition-base);
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.12);
}

.contact-card .contact-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.contact-card h4 {
    color: #ffffff;
    margin-bottom: var(--spacing-sm);
}

.contact-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size