/* ============================================
   像素工坊 - 统一样式系统 v3.0
   设计理念：科技与冒险的交响曲
   色彩系统：深色主题 + 霓虹绿点缀
   响应式：移动优先，四端适配
   ============================================ */

/* ============================================
   01. CSS变量定义 - 设计令牌系统
   ============================================ */
:root {
    /* 主色调 */
    --color-primary: #4CAF50;
    --color-primary-light: #66BB6A;
    --color-primary-dark: #388E3C;
    --color-primary-glow: rgba(76, 175, 80, 0.3);

    /* 辅助色 */
    --color-accent: #00E676;
    --color-accent-secondary: #FFD700;

    /* 中性色 - 深色主题 */
    --color-bg-dark: #1a1a1a;
    --color-bg-darker: #0d0d0d;
    --color-bg-card: #2a2a2a;
    --color-bg-card-hover: #333333;

    /* 文字颜色 */
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #808080;

    /* 边框和分割线 */
    --color-border: #404040;
    --color-border-glow: rgba(76, 175, 80, 0.5);

    /* 字体系统 */
    --font-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', sans-serif;
    --font-display: 'Montserrat', 'Microsoft YaHei', sans-serif;
    --font-mono: 'Consolas', monospace;

    /* 字号系统 (基于8px网格) */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3rem;

    /* 间距系统 (基于8px网格) */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* 圆角系统 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* 阴影系统 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-primary-glow);

    /* 过渡动画 */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* 层级系统 */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;

    /* 容器宽度 */
    --container-max: 1200px;
    --container-padding: var(--space-md);
}

/* ============================================
   02. 基础重置与全局样式
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    viewport-fit: cover;
    touch-action: manipulation;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-darker);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    min-height: 100vh;
    min-height: 100dvh;
}

/* ============================================
   03. 响应式断点系统
   ============================================ */
html[data-device-mode="mobile"] {
    --touch-target-size: 44px;
    --base-spacing-factor: 0.875;
}

html[data-device-mode="mobile"] body {
    cursor: default;
}

html[data-device-mode="tablet"] {
    --touch-target-size: 40px;
    --base-spacing-factor: 0.925;
}

html[data-device-mode="desktop"] {
    --touch-target-size: 32px;
    --base-spacing-factor: 1;
}

html[data-breakpoint="XS"] {
    --scale-ratio: 0.85;
}

html[data-breakpoint="XS"] body {
    font-size: 14px;
}

html[data-breakpoint="SM"] {
    --scale-ratio: 0.9;
}

html[data-breakpoint="MD"] {
    --scale-ratio: 0.95;
}

input,
textarea,
select {
    font-size: 16px !important;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

ul, ol {
    list-style: none;
}

/* ============================================
   04. 工具类
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--container-padding);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.grid {
    display: grid;
    gap: var(--space-md);
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* ============================================
   05. 导航栏组件
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: linear-gradient(180deg,
        rgba(26, 26, 26, 0.98) 0%,
        rgba(13, 13, 13, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
    padding-top: env(safe-area-inset-top);
}

.navbar.scrolled {
    background: rgba(13, 13, 13, 0.98);
    box-shadow: var(--shadow-lg);
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    transition: transform var(--transition-base);
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.navbar-brand i {
    color: var(--color-primary);
    font-size: var(--text-2xl);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.navbar-item {
    position: relative;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-item:hover {
    color: var(--color-text-primary);
    background: rgba(76, 175, 80, 0.1);
}

.navbar-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.navbar-item:hover::after {
    width: 60%;
}

.navbar-item.active {
    color: var(--color-primary);
    background: rgba(76, 175, 80, 0.1);
}

.navbar-item.active::after {
    width: 60%;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 10px;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-toggle:hover {
    background: rgba(76, 175, 80, 0.1);
}

.navbar-toggle:active {
    transform: scale(0.95);
}

.navbar-toggle span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
    border-radius: 2px;
}

.navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translateY(7px);
}

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

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

/* ============================================
   06. 移动端菜单
   ============================================ */
.mobile-menu {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    right: auto !important;
    width: 75vw !important;
    max-width: 320px !important;
    height: 100vh !important;
    height: 100dvh !important;
    min-height: 100vh !important;
    min-height: 100dvh !important;
    margin: 0 !important;
    padding: calc(var(--space-xl) + 70px + env(safe-area-inset-top)) var(--space-lg) calc(var(--space-xl) + env(safe-area-inset-bottom)) !important;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    background: linear-gradient(135deg,
        var(--color-bg-darker) 0%,
        var(--color-bg-dark) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: var(--z-modal) !important;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: none;
    will-change: transform;
}

.mobile-menu.active {
    transform: translateX(0) !important;
    box-shadow: 5px 0 30px rgba(0, 0, 0, 0.5) !important;
}

.menu-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: calc(var(--z-modal) - 1) !important;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu .navbar-item {
    display: flex;
    align-items: center;
    min-height: 56px;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(64, 64, 64, 0.3);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transform: translateX(0);
    opacity: 1;
}

.mobile-menu.active .navbar-item {
    transform: translateX(30px);
    opacity: 0;
}

.mobile-menu.active .navbar-item.animate-in {
    transform: translateX(0);
    opacity: 1;
    transition-property: transform, opacity;
    transition-duration: 0.4s;
    transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    -webkit-transition-property: -webkit-transform, opacity;
    -webkit-transition-duration: 0.4s;
    -webkit-transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.mobile-menu .navbar-item:hover,
.mobile-menu .navbar-item:active {
    color: var(--color-primary-light);
    background: linear-gradient(90deg,
        rgba(76, 175, 80, 0.1) 0%,
        transparent 100%);
    padding-left: calc(var(--space-md) + 12px);
    border-left: 3px solid var(--color-primary);
}

/* ============================================
   07. Hero区域
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg,
        var(--color-bg-darker) 0%,
        var(--color-bg-dark) 50%,
        #1a2332 100%);
    overflow: hidden;
    padding: calc(var(--space-3xl) + 70px) 0 var(--space-3xl) 0;
    box-sizing: border-box;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(76, 175, 80, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 230, 118, 0.1) 0%, transparent 50%);
    animation: pulse 10s ease-in-out infinite alternate;
}

@keyframes pulse {
    from { opacity: 0.5; }
    to { opacity: 1; }
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-md);
}

.hero-title {
    font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg,
        var(--color-text-primary) 0%,
        var(--color-primary) 50%,
        var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes titleGlow {
    from {
        filter: drop-shadow(0 0 20px rgba(76, 175, 80, 0.3));
    }
    to {
        filter: drop-shadow(0 0 40px rgba(76, 175, 80, 0.6));
    }
}

.hero-subtitle {
    font-size: clamp(var(--text-lg), 3vw, var(--text-2xl));
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    font-weight: 300;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   08. 按钮组件
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

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

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

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px var(--color-primary-glow);
}

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

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

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-lg);
}

.btn-icon {
    font-size: var(--text-xl);
    animation: bounce 2s infinite;
}

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

/* ============================================
   09. 卡片组件
   ============================================ */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
        transparent,
        var(--color-primary),
        transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.card:hover::before {
    opacity: 1;
}

.card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--color-bg-darker);
}

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

.card:hover .card-image img {
    transform: scale(1.08);
}

.card-body {
    padding: var(--space-lg);
}

.card-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.card-text {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.card-footer {
    padding: 0 var(--space-lg) var(--space-lg);
}

.feature-card {
    background: linear-gradient(135deg,
        var(--color-bg-card) 0%,
        rgba(42, 42, 42, 0.8) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle,
        var(--color-primary-glow) 0%,
        transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-icon {
    font-size: var(--text-3xl);
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
    position: relative;
    z-index: 1;
}

.feature-desc {
    color: var(--color-text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ============================================
   10. Section区域样式
   ============================================ */
.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.section-title {
    font-size: clamp(var(--text-2xl), 5vw, var(--text-4xl));
    font-weight: 800;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg,
        var(--color-primary),
        var(--color-accent));
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    margin-top: var(--space-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.about-section {
    background: linear-gradient(180deg,
        var(--color-bg-darker) 0%,
        var(--color-bg-dark) 100%);
}

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

.about-content h2 {
    font-size: var(--text-3xl);
    font-weight: 800;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.about-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.about-cta {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
    padding: var(--space-md);
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(76, 175, 80, 0.05) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.btn-link {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-block;
    margin-left: var(--space-xs);
}

.btn-link:hover {
    color: var(--color-accent);
    text-shadow: 0 0 10px var(--color-primary-glow);
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(135deg,
        var(--color-primary),
        var(--color-accent));
    border-radius: var(--radius-xl);
    z-index: -1;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
}

.services-section {
    background: var(--color-bg-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.gallery-section {
    background: var(--color-bg-darker);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    color: white;
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    cursor: pointer;
    display: block;
}

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

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

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
        rgba(0, 0, 0, 0.8) 0%,
        transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.gallery-overlay span {
    color: white;
    font-weight: 600;
    font-size: var(--text-lg);
}

/* ============================================
   11. Lightbox组件
   ============================================ */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: var(--z-modal-backdrop);
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lightbox-overlay.active {
    display: flex;
    opacity: 1;
}

.lightbox-container {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    animation: lightboxZoomIn 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes lightboxZoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    cursor: zoom-out;
}

.lightbox-caption {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: var(--text-base);
    font-weight: 600;
    text-align: center;
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.7);
    border-radius: var(--radius-full);
    backdrop-filter: blur(5px);
    white-space: nowrap;
    max-width: 80%;
}

.lightbox-close {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    font-size: var(--text-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid rgba(255, 255, 255, 0.7);
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.lightbox-close:hover {
    background: rgba(220, 53, 69, 1);
    border-color: #fff;
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 6px 16px rgba(220, 53, 69, 0.4);
}

.lightbox-icon-fallback {
    display: inline-block;
    font-size: inherit;
    line-height: 1;
    font-weight: bold;
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
}

.lightbox-close .lightbox-icon-fallback {
    font-size: 28px;
    margin-top: -2px;
}

.lightbox-close .fa {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
}

.lightbox-close::before {
    content: "\00D7";
    display: none;
    font-size: 24px;
}

.lightbox-close:not(:has(.lightbox-icon-fallback))::before {
    display: inline-block;
}

/* ============================================
   12. 统计数据展示
   ============================================ */
.stats-section {
    background: linear-gradient(135deg,
        var(--color-bg-dark) 0%,
        var(--color-bg-card) 100%);
    padding: var(--space-2xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.stat-card {
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.stat-value {
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

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

.stat-sublabel {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* ============================================
   13. 管理团队组件
   ============================================ */
.team-list-container {
    max-width: 900px;
    margin: 0 auto;
}

.team-section-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-border);
}

.team-member-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(64, 64, 64, 0.3);
    transition: all var(--transition-base);
}

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

.team-member-item:hover {
    background: rgba(76, 175, 80, 0.05);
    padding-left: var(--space-xs);
    border-radius: var(--radius-md);
}

.team-role-label {
    font-weight: 600;
    color: var(--color-text-secondary);
    min-width: 60px;
    flex-shrink: 0;
}

.team-member-name {
    color: #dfe5ec;
    margin-bottom: 0rem;
    font-size: var(--text-base);
    line-height: 1.6;
}

.team-member-name a {
    color: var(--color-primary-light);
    text-decoration: none;
    position: relative;
    transition: all var(--transition-fast);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
}

.team-member-name a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.team-member-name a:hover {
    color: var(--color-accent);
    background: rgba(0, 230, 118, 0.1);
}

.team-member-name a:hover::after {
    width: 100%;
}

.team-member-name.no-link {
    color: var(--color-text-muted);
    opacity: 0.8;
}

.admin-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

/* ============================================
   14. Footer页脚
   ============================================ */
.footer {
    background: var(--color-bg-darker);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.footer-info {
    display: flex;
    gap: var(--space-lg);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.footer-info a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-copyright {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   15. 动画效果
   ============================================ */
.animate-on-scroll {
    opacity: 0;
    transition-property: opacity, transform, -webkit-transform;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transition-property: opacity, -webkit-transform;
    -webkit-transition-duration: 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: none;
    -webkit-transform: none;
}

.animate-on-scroll.fade-in {
    transform: translateY(30px);
    -webkit-transform: translateY(30px);
}

.animate-on-scroll.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
    -webkit-transform: translateY(0);
}

.animate-on-scroll.slide-in-left {
    transform: translateX(-50px);
    -webkit-transform: translateX(-50px);
}

.animate-on-scroll.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
    -webkit-transform: translateX(0);
}

.animate-on-scroll.slide-in-right {
    transform: translateX(50px);
    -webkit-transform: translateX(50px);
}

.animate-on-scroll.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
    -webkit-transform: translateX(0);
}

.animate-on-scroll.scale-in {
    transform: scale(0.9);
    -webkit-transform: scale(0.9);
    transition-duration: 0.6s;
    -webkit-transition-duration: 0.6s;
}

.animate-on-scroll.scale-in.visible {
    opacity: 1;
    transform: scale(1);
    -webkit-transform: scale(1);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition-property: opacity, transform;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transition-property: opacity, -webkit-transform;
    -webkit-transition-duration: 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition-property: opacity, transform;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transition-property: opacity, -webkit-transform;
    -webkit-transition-duration: 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition-property: opacity, transform;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transition-property: opacity, -webkit-transform;
    -webkit-transition-duration: 0.8s;
    -webkit-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    -webkit-transform: scale(0.9);
    transition-property: opacity, transform, -webkit-transform;
    transition-duration: 0.6s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transition-property: opacity, -webkit-transform;
    -webkit-transition-duration: 0.6s;
    -webkit-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
    -webkit-transform: scale(1);
}

.float-animation {
    animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.glow-animation {
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 5px var(--color-primary-glow),
                    0 0 10px var(--color-primary-glow),
                    0 0 15px var(--color-primary-glow);
    }
    to {
        box-shadow: 0 0 10px var(--color-primary-glow),
                    0 0 20px var(--color-primary-glow),
                    0 0 30px var(--color-primary-glow);
    }
}

/* ============================================
   16. 响应式设计 - XL断点 (≤1200px)
   ============================================ */
@media screen and (max-width: 1200px) {
    :root {
        --container-max: 1140px;
        --container-padding: var(--space-lg);
    }

    .hero-title {
        font-size: clamp(2rem, 4vw, var(--text-5xl));
    }

    .about-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }

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

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

/* ============================================
   17. 响应式设计 - LG断点 (≤992px)
   ============================================ */
@media screen and (max-width: 992px) {
    :root {
        --container-max: 960px;
        --space-3xl: 5rem;
        --text-5xl: 2.75rem;
    }

    .navbar-menu {
        gap: var(--space-md);
    }

    .navbar-item {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--text-sm);
    }

    .hero {
        min-height: 85vh;
        padding: var(--space-2xl) 0;
    }

    .hero-content {
        max-width: 90%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }

    .admin-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-section {
        flex: 1 1 45%;
        min-width: 280px;
    }
}

/* ============================================
   18. 响应式设计 - MD断点 (≤768px)
   ============================================ */
@media screen and (max-width: 768px) {
    :root {
        --container-padding: var(--space-md);
        --space-3xl: 4rem;
        --space-2xl: 3rem;
        --text-4xl: 2rem;
        --text-5xl: 2.25rem;
    }

    html, body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100vw;
    }

    .navbar-menu {
        display: none;
    }

    .navbar-toggle {
        display: flex;
    }

    .hero {
        min-height: 100vh;
        min-height: 100svh;
        padding: calc(70px + var(--space-lg) + env(safe-area-inset-top)) 0 var(--space-lg) 0;
        overflow: hidden;
    }

    .hero-content {
        padding-top: 0;
        padding-bottom: 0;
        width: 100%;
        max-width: 100%;
    }

    .hero-title {
        font-size: clamp(1.5rem, 8vw, 2.5rem);
        line-height: 1.2;
        margin-bottom: var(--space-sm);
    }

    .hero-subtitle {
        font-size: clamp(0.875rem, 3vw, var(--text-base));
        line-height: 1.5;
        margin-bottom: var(--space-sm);
    }

    .hero-description {
        font-size: var(--text-sm);
        margin-bottom: var(--space-md);
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .section-title {
        font-size: clamp(1.5rem, 4vw, var(--text-2xl));
    }

    .section-subtitle {
        font-size: var(--text-sm);
    }

    .stats-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--space-md);
    }

    .about-content h2 {
        font-size: var(--text-2xl);
        text-align: center;
    }

    .about-subtitle {
        font-size: var(--text-base);
        text-align: center;
    }

    .about-cta {
        font-size: var(--text-sm);
        text-align: center;
        padding: var(--space-sm);
    }

    .about-image {
        margin-top: var(--space-lg);
    }

    .about-image img {
        max-height: 250px;
        object-fit: cover;
    }

    .admin-cards-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-info {
        flex-direction: column;
        gap: var(--space-xs);
        align-items: center;
    }

    .team-member-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
        padding: var(--space-md);
        border-radius: var(--radius-md);
    }

    .team-role-label {
        font-size: var(--text-xs);
        min-width: auto;
        padding: var(--space-xs) var(--space-sm);
        background: rgba(76, 175, 80, 0.15);
        border-radius: var(--radius-sm);
    }

    .team-member-name {
        font-size: var(--text-base);
        width: 100%;
    }

    .team-member-name a {
        display: inline-flex;
        align-items: center;
        padding: var(--space-xs) var(--space-sm);
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
    }

    .team-member-name a:hover {
        background: rgba(76, 175, 80, 0.1);
        transform: translateX(4px);
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: var(--text-base);
        min-height: 44px;
    }

    .btn-md {
        min-height: 40px;
    }

    .card-body {
        padding: var(--space-md);
    }

    .feature-card {
        padding: var(--space-md);
    }

    .table-responsive {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        min-width: 600px;
    }
}

/* ============================================
   19. 响应式设计 - SM断点 (≤576px)
   ============================================ */
@media screen and (max-width: 576px) {
    :root {
        --container-padding: var(--space-sm);
        --space-2xl: 2.5rem;
        --text-3xl: 1.75rem;
        --text-4xl: 1.875rem;
    }

    .mobile-menu {
        width: 85vw !important;
        max-width: 300px !important;
    }

    .lightbox-close {
        width: 44px !important;
        height: 44px !important;
        font-size: 20px !important;
        top: 15px !important;
        right: 15px !important;
    }

    .hero {
        min-height: 75vh;
        padding: var(--space-lg) 0;
    }

    .hero-title {
        font-size: clamp(1.5rem, 6vw, var(--text-3xl));
        letter-spacing: -0.02em;
    }

    .hero-subtitle {
        font-size: var(--text-sm);
        max-width: 100%;
    }

    .section-title {
        font-size: clamp(1.25rem, 5vw, var(--text-xl));
        margin-bottom: var(--space-md);
    }

    .stat-value {
        font-size: var(--text-2xl);
    }

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

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--space-sm);
    }

    .gallery-item {
        aspect-ratio: 1;
    }

    .team-member-item {
        padding: var(--space-sm) var(--space-md);
        gap: 4px;
    }

    .team-member-name {
        font-size: var(--text-sm);
    }

    .footer-text {
        font-size: var(--text-xs);
    }

    th, td {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--text-sm);
    }

    button,
    .btn,
    input[type="submit"],
    .navbar-toggle {
        min-height: 44px;
        min-width: 44px;
    }

    a.navbar-item {
        padding: var(--space-sm);
    }
}

/* ============================================
   20. 响应式设计 - XS断点 (≤320px)
   ============================================ */
@media screen and (max-width: 320px) {
    :root {
        --container-padding: var(--space-xs);
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --text-2xl: 1.375rem;
        --text-3xl: 1.5rem;
    }

    .container {
        padding: 0 var(--space-xs);
    }

    .hero {
        min-height: 100vh;
        min-height: 100svh;
        padding: calc(70px + var(--space-md) + env(safe-area-inset-top)) 0 var(--space-md) 0;
    }

    .hero-title {
        font-size: clamp(1.25rem, 7vw, 1.75rem);
        line-height: 1.2;
        margin-bottom: var(--space-xs);
    }

    .hero-subtitle {
        font-size: clamp(0.75rem, 2.5vw, 0.875rem);
        line-height: 1.4;
        margin-bottom: var(--space-xs);
    }

    .section {
        padding: var(--space-lg) 0;
    }

    .section-title {
        font-size: var(--text-lg);
    }

    .stat-card {
        padding: var(--space-sm);
    }

    .stat-value {
        font-size: var(--text-xl);
    }

    .feature-card,
    .service-card,
    .gallery-item {
        padding: var(--space-sm);
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
    }

    .mobile-menu {
        width: 100vw !important;
        max-width: none !important;
    }

    .mobile-menu-header {
        padding: var(--space-sm) var(--space-md);
    }

    .navbar-item {
        padding: var(--space-md);
        font-size: var(--text-base);
    }

    .lightbox-close {
        width: 40px !important;
        height: 40px !important;
        font-size: 18px !important;
        top: 10px !important;
        right: 10px !important;
        opacity: 0.95;
    }

    .btn {
        padding: var(--space-xs) var(--space-md);
        font-size: var(--text-sm);
    }

    .btn-lg {
        width: 100%;
        text-align: center;
    }

    .table-responsive {
        margin: calc(var(--space-xs) * -1);
        padding: 0 var(--space-xs);
    }

    .hide-on-mobile {
        display: none !important;
    }
}

/* ============================================
   21. 打印样式
   ============================================ */
@media print {
    .navbar,
    .mobile-menu,
    .footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* ============================================
   22. 无障碍访问优化
   ============================================ */
*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

@media (prefers-contrast: high) {
    :root {
        --color-bg-card: #000000;
        --color-border: #ffffff;
        --color-text-secondary: #e0e0e0;
    }
}