/* ========================================
   新疆卡美力信息技术有限公司 - 官方网站样式
   海洋蓝渐变主题 + 暗色/亮色模式
   ======================================== */

/* CSS Variables */
:root {
    /* Ocean Blue Gradients - Light Mode */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8eef5;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    
    /* Ocean Blue Colors */
    --ocean-50: #f0f9ff;
    --ocean-100: #e0f2fe;
    --ocean-200: #bae6fd;
    --ocean-300: #7dd3fc;
    --ocean-400: #38bdf8;
    --ocean-500: #0ea5e9;
    --ocean-600: #0284c7;
    --ocean-700: #0369a1;
    --ocean-800: #075985;
    --ocean-900: #0c4a6e;
    --ocean-950: #082f49;
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-inverse: #f8fafc;
    
    /* Accent */
    --accent-primary: #0ea5e9;
    --accent-secondary: #0284c7;
    --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #0284c7 50%, #0369a1 100%);
    --accent-gradient-soft: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(2, 132, 199, 0.1) 100%);
    
    /* Ocean Background Gradient - Subtle */
    --ocean-bg-gradient: linear-gradient(180deg, #f5f9fc 0%, #eef4f9 50%, #e8f0f7 100%);
    --ocean-bg-radial: radial-gradient(ellipse at top, #eef4f9 0%, #f5f9fc 50%, #ffffff 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(2, 132, 199, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(2, 132, 199, 0.1), 0 2px 4px -2px rgba(2, 132, 199, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(2, 132, 199, 0.1), 0 4px 6px -4px rgba(2, 132, 199, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(2, 132, 199, 0.15), 0 8px 10px -6px rgba(2, 132, 199, 0.1);
    --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.15);
    
    /* Border */
    --border-color: rgba(14, 165, 233, 0.15);
    --border-color-hover: rgba(14, 165, 233, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0px;
    --radius-md: 0px;
    --radius-lg: 0px;
    --radius-xl: 0px;
    --radius-full: 9999px;
    
    /* Navbar */
    --navbar-bg: rgba(255, 255, 255, 0.8);
    --navbar-bg-scroll: rgba(255, 255, 255, 0.95);
    --navbar-blur: blur(20px) saturate(180%);
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0a1628;
    --bg-secondary: #0f1d32;
    --bg-tertiary: #152238;
    --bg-card: rgba(15, 29, 50, 0.85);
    --bg-card-hover: rgba(20, 40, 70, 0.9);
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-inverse: #0f172a;
    
    --accent-primary: #38bdf8;
    --accent-secondary: #0ea5e9;
    --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 50%, #0284c7 100%);
    --accent-gradient-soft: linear-gradient(135deg, rgba(56, 189, 248, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
    
    --ocean-bg-gradient: linear-gradient(180deg, #0d1929 0%, #111e32 50%, #152238 100%);
    --ocean-bg-radial: radial-gradient(ellipse at top, #152238 0%, #0d1929 50%, #0a1628 100%);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(56, 189, 248, 0.1);
    
    --border-color: rgba(56, 189, 248, 0.1);
    --border-color-hover: rgba(56, 189, 248, 0.25);
    
    --navbar-bg: rgba(10, 22, 40, 0.8);
    --navbar-bg-scroll: rgba(10, 22, 40, 0.95);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--ocean-bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: var(--ocean-400);
    color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--ocean-400);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--ocean-500);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--navbar-bg);
    backdrop-filter: var(--navbar-blur);
    -webkit-backdrop-filter: var(--navbar-blur);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: var(--navbar-bg-scroll);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.8;
}

.logo-placeholder {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
    background: var(--accent-gradient-soft);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.theme-toggle:hover {
    background: var(--accent-gradient-soft);
    color: var(--accent-primary);
    border-color: var(--border-color-hover);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
    position: relative;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -6px;
}

.hamburger::after {
    top: 6px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

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

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--accent-primary);
    border: 1.5px solid var(--accent-primary);
}

.btn-outline:hover {
    background: var(--accent-gradient-soft);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 64px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: var(--ocean-bg-radial);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-particles::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--ocean-300) 0%, transparent 70%);
    opacity: 0.15;
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.hero-particles::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--ocean-400) 0%, transparent 70%);
    opacity: 0.1;
    bottom: -100px;
    left: -100px;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
    animation: fadeInUp 1s ease;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--accent-gradient-soft);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-primary);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

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

/* ========================================
   Sections
   ======================================== */
.section {
    padding: 100px 24px;
    position: relative;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-gradient-soft);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: 48px;
}

/* ========================================
   Product Cards
   ======================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.product-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.product-card-bg {
    position: absolute;
    inset: 0;
    background: var(--accent-gradient-soft);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover .product-card-bg {
    opacity: 1;
}

.product-card-content {
    position: relative;
    z-index: 1;
    padding: 32px;
}

.product-icon {
    width: 56px;
    height: 56px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 20px;
    transition: transform var(--transition-base);
}

.product-card:hover .product-icon {
    transform: scale(1.1);
}

.product-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.product-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.product-link:hover {
    gap: 12px;
}

/* ========================================
   Industry Cards
   ======================================== */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.industry-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.industry-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-lg);
}

.industry-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient-soft);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1.25rem;
    margin: 0 auto 16px;
}

.industry-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.industry-card p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ========================================
   News Cards
   ======================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.news-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-lg);
}

.news-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.news-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-tertiary);
}

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

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

.news-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ocean-400);
    font-size: 3rem;
    background: var(--accent-gradient-soft);
}

.news-content {
    padding: 24px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.news-date {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.news-badge {
    padding: 2px 10px;
    background: var(--accent-gradient);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.news-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.4;
}

.news-excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.news-readmore {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========================================
   CTA Section
   ======================================== */
.section-cta {
    background: var(--accent-gradient-soft);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.cta-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ========================================
   Page Header
   ======================================== */
.page-header {
    position: relative;
    padding: 140px 24px 80px;
    text-align: center;
    overflow: hidden;
}

.page-header-bg {
    position: absolute;
    inset: 0;
    background: var(--ocean-bg-radial);
    opacity: 0.5;
}

.page-header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    flex-wrap: wrap;
}

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

.breadcrumb a:hover {
    opacity: 0.8;
}

.page-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ========================================
   Filter Tabs
   ======================================== */
.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-tab {
    padding: 10px 20px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.filter-tab:hover {
    border-color: var(--border-color-hover);
    background: var(--bg-card-hover);
}

.filter-tab.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

/* ========================================
   Product Detail
   ======================================== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.product-detail-image {
    aspect-ratio: 4 / 3;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.product-detail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--ocean-400);
    font-size: 4rem;
    background: var(--accent-gradient-soft);
    gap: 12px;
}

.product-detail-placeholder span {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.product-detail-header {
    margin-bottom: 24px;
}

.product-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-gradient-soft);
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.product-detail-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.product-detail-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.product-features {
    margin-bottom: 32px;
}

.product-features h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.product-features ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.product-features li i {
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.product-detail-actions {
    display: flex;
    gap: 12px;
}

.related-products {
    margin-top: 80px;
    padding-top: 60px;
    border-top: 1px solid var(--border-color);
}

.related-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 32px;
    text-align: center;
    color: var(--text-primary);
}

/* ========================================
   News Detail
   ======================================== */
.news-detail {
    max-width: 800px;
    margin: 0 auto;
}

.news-detail-header {
    margin-bottom: 32px;
}

.news-detail-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.news-detail-date {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.news-detail-title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

.news-detail-image {
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 32px;
}

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

.news-detail-content {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1.05rem;
}

.news-detail-content p {
    margin-bottom: 16px;
}

.related-news {
    margin-top: 80px;
    padding-top: 60px;
    border-top: 1px solid var(--border-color);
}

/* ========================================
   About Page
   ======================================== */
.about-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 80px;
}

.about-image {
    aspect-ratio: 1;
    max-width: 400px;
    margin: 0 auto;
}

.about-image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--accent-gradient-soft);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--ocean-400);
    font-size: 4rem;
    gap: 12px;
}

.about-image-placeholder span {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.about-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.about-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-description p {
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    gap: 32px;
}

.about-stat {
    text-align: center;
}

.about-stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1;
}

.about-stat-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}

.about-section {
    margin-bottom: 80px;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: 40px;
}

.timeline-marker {
    position: absolute;
    left: 11px;
    top: 4px;
    width: 20px;
    height: 20px;
    background: var(--accent-gradient);
    border-radius: 50%;
    border: 3px solid var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(10px);
}

.timeline-date {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-gradient-soft);
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Capability Grid */
.capability-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.capability-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.capability-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-lg);
}

.capability-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin: 0 auto 20px;
}

.capability-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.capability-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Showcase Grid */
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.showcase-item {
    text-align: center;
}

.showcase-image {
    aspect-ratio: 16 / 10;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 16px;
}

.showcase-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--ocean-400);
    font-size: 2.5rem;
    background: var(--accent-gradient-soft);
    gap: 8px;
}

.showcase-placeholder span {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.showcase-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ========================================
   Support Page
   ======================================== */
.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 80px;
}

.support-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(10px);
    margin-bottom: 24px;
}

.support-card:last-child {
    margin-bottom: 0;
}

.support-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-gradient-soft);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.contact-value {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

.service-hours {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-hour {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.service-hour:last-child {
    border-bottom: none;
}

.service-day {
    font-weight: 500;
    color: var(--text-primary);
}

.service-time {
    color: var(--accent-primary);
    font-weight: 600;
}

.form-desc {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.support-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-control::placeholder {
    color: var(--text-tertiary);
}

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

.messages {
    margin-bottom: 20px;
}

.message {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.message-success {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* FAQ */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent-primary);
}

.faq-question i {
    transition: transform var(--transition-base);
    color: var(--text-tertiary);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.pagination-link:hover {
    background: var(--accent-gradient-soft);
    border-color: var(--border-color-hover);
    color: var(--accent-primary);
}

.pagination-link.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 24px;
    color: var(--text-tertiary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 24px 24px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.footer-logo i {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--accent-gradient);
    color: white;
    transform: translateY(-2px);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-contact li {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.footer-beian {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.footer-beian a {
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color var(--transition-fast);
}

.footer-beian a:hover {
    color: var(--accent-primary);
}

.beian-divider {
    color: var(--border-color);
}

.beian-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about-overview {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-stats {
        justify-content: center;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    .product-detail {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--navbar-bg-scroll);
        backdrop-filter: var(--navbar-blur);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-link {
        width: 100%;
        padding: 12px 16px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .section {
        padding: 60px 16px;
    }
    
    .products-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .filter-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }
    
    .filter-tab {
        white-space: nowrap;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 45px;
    }
    
    .timeline-marker {
        left: 6px;
        width: 16px;
        height: 16px;
    }
    
    .capability-grid,
    .showcase-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 16px;
    }
    
    .hero-content {
        padding: 0 16px;
    }
    
    .section {
        padding: 48px 16px;
    }
    
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 16px;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Smooth scroll reveal */
.section > .section-container {
    animation: fadeIn 0.6s ease;
}