/* ============================================
   温州知更网络科技有限公司官网
   未来工业科技感设计系统
   ============================================ */

/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 引入Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;900&family=Rajdhani:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* 颜色变量 - 未来工业科技感配色 */
    --bg-primary: #050810;
    --bg-secondary: #0a1520;
    --bg-tertiary: #0f1a2a;
    --bg-card: rgba(15, 26, 42, 0.8);
    --bg-card-hover: rgba(15, 26, 42, 0.95);
    
    /* 主色调 - 电光青蓝 + 霓虹绿 */
    --accent-cyan: #00f5ff;
    --accent-cyan-dark: #00d4ff;
    --accent-neon-green: #39ff14;
    --accent-neon-green-dark: #2ee000;
    --accent-secondary: var(--accent-neon-green); /* 通用次要强调色 */
    
    /* 强调色 */
    --accent-orange: #ff6b35;
    --accent-purple: #8b5cf6;
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #e5e7eb;
    --text-muted: #9ca3af;
    --text-dark: #6b7280;
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #050810 0%, #0a1520 50%, #0f1a2a 100%);
    --gradient-accent: linear-gradient(135deg, #00f5ff 0%, #39ff14 100%);
    --gradient-accent-reverse: linear-gradient(135deg, #39ff14 0%, #00f5ff 100%);
    --gradient-hero: radial-gradient(circle at 20% 50%, rgba(0, 245, 255, 0.15) 0%, transparent 50%),
                     radial-gradient(circle at 80% 80%, rgba(57, 255, 20, 0.15) 0%, transparent 50%);
    
    /* 阴影和光晕 */
    --shadow-glow-cyan: 0 0 20px rgba(0, 245, 255, 0.4);
    --shadow-glow-green: 0 0 20px rgba(57, 255, 20, 0.4);
    --shadow-glow-orange: 0 0 20px rgba(255, 107, 53, 0.4);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-card-hover: 0 15px 40px rgba(0, 245, 255, 0.3);
    
    /* 边框 */
    --border-cyan: rgba(0, 245, 255, 0.2);
    --border-green: rgba(57, 255, 20, 0.2);
    --border-cyan-hover: rgba(0, 245, 255, 0.5);
    
    /* 字体 */
    --font-display: 'Orbitron', 'Rajdhani', sans-serif;
    --font-body: 'Noto Sans SC', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* 动态网格背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    animation: gridMove 20s linear infinite;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(5, 8, 16, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all var(--transition-normal);
    border-bottom: 1px solid var(--border-cyan);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar.scrolled {
    background: rgba(5, 8, 16, 0.95);
    box-shadow: 0 4px 30px rgba(0, 245, 255, 0.2);
    border-bottom-color: var(--accent-cyan);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all var(--transition-normal);
    letter-spacing: 1px;
    position: relative;
}

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    position: relative;
    padding: 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width var(--transition-normal);
    box-shadow: var(--shadow-glow-cyan);
}

.nav-link:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 0.3rem;
}

.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-cyan);
    color: var(--accent-cyan);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    text-transform: none;
    letter-spacing: 0;
}

.theme-toggle-btn:hover {
    background: rgba(0, 245, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.3);
    transform: scale(1.1);
}

/* 主题图标：用 CSS 圆点替代 emoji，兼容旧系统 */
.theme-toggle-btn .theme-icon {
    display: inline-block;
    width: 1em;
    height: 1em;
    border-radius: 50%;
    vertical-align: middle;
}
.theme-toggle-btn .theme-icon-green {
    background: #00ff88;
    box-shadow: 0 0 6px rgba(0, 255, 136, 0.6);
}
.theme-toggle-btn .theme-icon-blue {
    background: #00b4ff;
    box-shadow: 0 0 6px rgba(0, 180, 255, 0.6);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--accent-cyan);
    transition: all var(--transition-normal);
    border-radius: 2px;
    box-shadow: 0 0 5px rgba(0, 245, 255, 0.5);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-primary);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    animation: pulse 8s ease-in-out infinite;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 245, 255, 0.05) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
    z-index: 0;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

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

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 1000px;
    padding: 2rem;
    position: relative;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 1.2;
    position: relative;
    text-shadow: 0 0 30px rgba(0, 245, 255, 0.3);
}

.hero-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--gradient-accent);
    box-shadow: var(--shadow-glow-cyan);
    animation: expandWidth 1s ease 0.5s both;
}

@keyframes expandWidth {
    from { width: 0; }
    to { width: 100px; }
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s both;
    font-weight: 300;
    letter-spacing: 1px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s both;
}

/* 按钮样式 */
.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-display);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.btn-primary {
    background: var(--gradient-accent);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow-cyan);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(0, 245, 255, 0.6);
    color: var(--bg-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-cyan);
    border: 2px solid var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(0, 245, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 245, 255, 0.5);
    color: var(--accent-cyan);
}

.btn-orange {
    background: linear-gradient(135deg, var(--accent-orange) 0%, #ff8c5a 100%);
    color: white;
    box-shadow: var(--shadow-glow-orange);
}

.btn-orange:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(255, 107, 53, 0.6);
}

/* 容器和区域 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-accent);
    box-shadow: var(--shadow-glow-cyan);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
    line-height: 1.8;
}

/* 卡片 */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2.5rem;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-cyan);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 245, 255, 0.1), transparent);
    transition: left 0.5s;
}

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

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--accent-cyan);
    background: var(--bg-card-hover);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.5));
    transition: all var(--transition-normal);
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 0 20px rgba(0, 245, 255, 0.8));
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-description {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

/* 特性列表 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.feature-item:hover {
    background: rgba(0, 245, 255, 0.05);
    transform: translateX(5px);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--accent-neon-green);
    flex-shrink: 0;
    filter: drop-shadow(0 0 5px rgba(57, 255, 20, 0.5));
}

.feature-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    padding: 4rem 0 1.5rem;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-cyan);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-accent);
    box-shadow: var(--shadow-glow-cyan);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p,
.footer-section li {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    line-height: 1.8;
}

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

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-normal);
    display: inline-block;
}

.footer-section a:hover {
    color: var(--accent-cyan);
    transform: translateX(5px);
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-cyan);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom p a {
    color: inherit;
    text-decoration: none;
}

.footer-bottom p a:hover {
    color: var(--text-muted);
    text-decoration: underline;
}

.footer-bottom .beian-icon {
    display: inline-block;
    vertical-align: middle;
    width: 1em;
    height: 1em;
    margin-right: 0.25em;
    object-fit: contain;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease both;
}

/* 3D效果容器 */
.architecture-3d {
    perspective: 1000px;
    margin: 3rem 0;
}

.architecture-layer {
    transform-style: preserve-3d;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.architecture-layer:hover {
    transform: translateZ(20px) rotateY(5deg);
}

/* 粒子背景容器 */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.6;
}

/* 数据流动画 */
.data-flow {
    position: relative;
    overflow: hidden;
}

.data-flow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: var(--gradient-accent);
    animation: flow 3s linear infinite;
    box-shadow: var(--shadow-glow-cyan);
}

@keyframes flow {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 图片懒加载样式 */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img.loaded {
    opacity: 1;
}

/* 主题通用样式 */
.theme-accent-box {
    background: rgba(57, 255, 20, 0.1) !important;
    border-left-color: var(--accent-secondary) !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(5, 8, 16, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        padding: 2rem 0;
        gap: 0;
        border-top: 1px solid var(--border-cyan);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        padding: 1rem;
        display: block;
        width: 100%;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }

    .btn {
        padding: 0.9rem 2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.85rem;
    }

    .card {
        padding: 1.5rem;
    }
}

/* ============================================
   页面特定样式
   ============================================ */

/* 筛选区域 */
.filter-section {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.filter-select {
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-cyan);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.3);
}

.filter-btn {
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--border-cyan);
    border-radius: 20px;
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.3);
}

.filter-btn.active {
    background: var(--gradient-accent);
    border-color: transparent;
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow-cyan);
}

.search-input {
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-cyan);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
    font-size: 0.95rem;
    min-width: 200px;
    transition: all var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.3);
}

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

/* 案例展示页面 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.case-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-cyan);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--accent-cyan);
}

.case-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

.case-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: opacity var(--transition-normal);
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-meta {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    flex-wrap: wrap;
}

.case-industry,
.case-solution {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 245, 255, 0.1);
    color: var(--accent-cyan);
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--border-cyan);
}

.case-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
    font-weight: 600;
    font-family: var(--font-display);
}

.case-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
}

.case-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.case-tag {
    padding: 0.3rem 0.8rem;
    background: rgba(57, 255, 20, 0.1);
    color: var(--accent-neon-green);
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(57, 255, 20, 0.2);
}

.case-date {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

.case-breadcrumb,
.news-breadcrumb {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.case-breadcrumb a,
.news-breadcrumb a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.case-breadcrumb a:hover,
.news-breadcrumb a:hover {
    text-decoration: underline;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.case-meta-header,
.news-meta-header {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1rem;
}

.case-detail-container,
.news-detail-container {
    max-width: 900px;
    margin: 0 auto;
}

.case-detail-image,
.news-detail-image {
    width: 100%;
    margin-bottom: 2rem;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-cyan);
}

.case-detail-image img,
.news-detail-image img {
    width: 100%;
    height: auto;
    display: block;
}

.case-description-large {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

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

.case-content-text h3,
.news-content-text h3 {
    color: var(--accent-cyan);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.case-content-text ul,
.news-content-text ul {
    margin-left: 2rem;
    margin-top: 1rem;
}

/* 富文本内图片样式（与 CKEditor 5 输出一致，使后台设置的居中/左右对齐在前台生效） */
.case-content-text figure.image,
.news-content-text figure.image {
    clear: both;
    display: table;
    margin: 0.9em auto;
    min-width: 50px;
    text-align: center;
}
.case-content-text figure.image img,
.news-content-text figure.image img {
    display: block;
    height: auto;
    margin: 0 auto;
    max-width: 100%;
    min-width: 100%;
}
/* 图片居中 */
.case-content-text figure.image.image-style-align-center,
.news-content-text figure.image.image-style-align-center {
    margin-left: auto;
    margin-right: auto;
}
/* 图片左对齐（文字环绕） */
.case-content-text figure.image.image-style-align-left,
.news-content-text figure.image.image-style-align-left {
    float: left;
    margin-right: 1.5em;
    clear: none;
}
/* 图片右对齐（文字环绕） */
.case-content-text figure.image.image-style-align-right,
.news-content-text figure.image.image-style-align-right {
    float: right;
    margin-left: 1.5em;
    clear: none;
}
/* 图片靠右（侧边，最大 50% 宽） */
.case-content-text figure.image.image-style-side,
.news-content-text figure.image.image-style-side {
    float: right;
    margin-left: 1.5em;
    max-width: 50%;
}
/* 块级左/右对齐（不环绕） */
.case-content-text figure.image.image-style-block-align-left,
.news-content-text figure.image.image-style-block-align-left {
    margin-left: 0;
    margin-right: auto;
}
.case-content-text figure.image.image-style-block-align-right,
.news-content-text figure.image.image-style-block-align-right {
    margin-left: auto;
    margin-right: 0;
}
.case-content-text figure.image + *,
.news-content-text figure.image + * {
    clear: both;
}
.case-content-text figure.image figcaption,
.news-content-text figure.image figcaption {
    display: table-caption;
    caption-side: bottom;
    font-size: 0.9em;
    color: var(--text-muted);
    padding: 0.5em 0;
}

/* 新闻动态页面 */
.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.news-item {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-cyan);
    display: flex;
    flex-direction: column;
}

.news-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--accent-cyan);
}

.news-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

.news-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.news-category {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 245, 255, 0.1);
    color: var(--accent-cyan);
    border-radius: 20px;
    border: 1px solid var(--border-cyan);
}

.news-date,
.news-author {
    color: var(--text-muted);
}

.news-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.news-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.news-title a:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.news-summary {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    flex: 1;
}

.news-link {
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.news-link:hover {
    text-decoration: underline;
    transform: translateX(5px);
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

.news-summary-box {
    background: rgba(0, 245, 255, 0.1);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--accent-cyan);
    margin-bottom: 2rem;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.1);
}

.news-summary-box h3 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.news-summary-box p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 合作伙伴页面 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.partner-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-cyan);
}

.partner-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--accent-cyan);
}

.partner-logo {
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border-cyan);
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: brightness(0.9);
    transition: all var(--transition-normal);
}

.partner-card:hover .partner-logo img {
    filter: brightness(1.2);
    transform: scale(1.05);
}

.partner-name {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-family: var(--font-display);
}

.partner-category {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 245, 255, 0.1);
    color: var(--accent-cyan);
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-cyan);
}

.partner-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 下载中心页面 */
.downloads-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.download-item {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    gap: 1.5rem;
    align-items: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-cyan);
}

.download-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--accent-cyan);
}

.download-icon {
    font-size: 3rem;
    flex-shrink: 0;
    filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.5));
}

.download-info {
    flex: 1;
}

.download-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-family: var(--font-display);
}

.download-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.8rem;
}

.download-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.download-category {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 245, 255, 0.1);
    color: var(--accent-cyan);
    border-radius: 20px;
    border: 1px solid var(--border-cyan);
}

.download-size,
.download-type,
.download-count,
.download-date {
    color: var(--text-muted);
}

.download-action {
    flex-shrink: 0;
}

/* 无结果提示 */
.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .cases-grid,
    .news-list {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .download-item {
        flex-direction: column;
        text-align: center;
    }
    
    .filter-section {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-input {
        width: 100%;
    }
}