/* 现代字体定义 - 使用本地备份 */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: local('Inter Light'), local('Inter-Light'),
         url('data:font/woff2;base64,') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: local('Inter Regular'), local('Inter-Regular'),
         url('data:font/woff2;base64,') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: local('Inter Medium'), local('Inter-Medium'),
         url('data:font/woff2;base64,') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: local('Inter SemiBold'), local('Inter-SemiBold'),
         url('data:font/woff2;base64,') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: local('Inter Bold'), local('Inter-Bold'),
         url('data:font/woff2;base64,') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 800;
    font-display: swap;
    src: local('Inter ExtraBold'), local('Inter-ExtraBold'),
         url('data:font/woff2;base64,') format('woff2');
}

/* CSS变量定义 - 增强色彩系统 */
:root {
    /* 主色调 - 科技感蓝绿色系 */
    --primary-color: #00ff88;
    --primary-light: #33ff99;
    --primary-dark: #00cc6a;
    --primary-gradient: linear-gradient(135deg, #00ff88 0%, #00cc6a 100%);

    /* 次要色调 - 未来感蓝色系 */
    --secondary-color: #00a1ff;
    --secondary-light: #33b3ff;
    --secondary-dark: #0081cc;
    --secondary-gradient: linear-gradient(135deg, #00a1ff 0%, #0081cc 100%);

    /* 强调色系 */
    --accent-color: #ff6b6b;
    --accent-light: #ff8a8a;
    --accent-dark: #ff4757;
    --accent-gradient: linear-gradient(135deg, #ff6b6b 0%, #ff4757 100%);

    /* 功能色系 */
    --warning-color: #ffd93d;
    --warning-gradient: linear-gradient(135deg, #ffd93d 0%, #ffb700 100%);
    --success-color: #6bcf7f;
    --success-gradient: linear-gradient(135deg, #6bcf7f 0%, #4caf50 100%);
    --error-color: #ff4757;
    --error-gradient: linear-gradient(135deg, #ff4757 0%, #e74c3c 100%);
    --info-color: #74b9ff;
    --info-gradient: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);

    /* 背景色系 - 深色主题优化 */
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2e2e2e;
    --bg-quaternary: #383838;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --bg-glass: rgba(255, 255, 255, 0.08);
    --bg-glass-strong: rgba(255, 255, 255, 0.12);
    --bg-overlay: rgba(0, 0, 0, 0.7);
    --bg-modal: rgba(0, 0, 0, 0.85);

    /* 背景渐变系 */
    --bg-gradient-primary: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
    --bg-gradient-secondary: linear-gradient(45deg, var(--bg-secondary) 0%, var(--bg-tertiary) 50%, var(--bg-quaternary) 100%);
    --bg-gradient-radial: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 70%);
    --bg-gradient-subtle: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);

    /* 文字色系 */
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    --text-disabled: #555555;
    --text-inverse: #000000;

    /* 边框色系 */
    --border-color: rgba(0, 255, 136, 0.2);
    --border-hover: rgba(0, 255, 136, 0.5);
    --border-focus: rgba(0, 255, 136, 0.8);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.2);

    /* 阴影系统 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(0, 255, 136, 0.3);
    --shadow-glow-strong: 0 0 40px rgba(0, 255, 136, 0.5);
    --shadow-colored: 0 8px 32px rgba(0, 255, 136, 0.2);

    /* 圆角系统 */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 50%;

    /* 动画系统 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* 间距系统 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Z-index 层级 */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

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

body {
    font-family:
        'Inter',
        -apple-system,
        BlinkMacSystemFont,
        'Segoe UI',
        'Roboto',
        'Helvetica Neue',
        'Arial',
        'Noto Sans',
        'Liberation Sans',
        sans-serif,
        'Apple Color Emoji',
        'Segoe UI Emoji',
        'Segoe UI Symbol',
        'Noto Color Emoji';
    background:
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 30%, var(--bg-tertiary) 70%, var(--bg-quaternary) 100%),
        radial-gradient(circle at 20% 20%, rgba(0, 255, 136, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 80% 80%, rgba(0, 161, 255, 0.06) 0%, transparent 60%),
        radial-gradient(circle at 50% 50%, rgba(116, 185, 255, 0.04) 0%, transparent 70%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 120px,
            rgba(255, 255, 255, 0.02) 122px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 80px,
            rgba(0, 255, 136, 0.01) 82px
        );
    background-size: 400% 400%, 200% 200%, 300% 300%, 150% 150%, 200% 200%, 250% 250%;
    animation: backgroundFlow 20s ease-in-out infinite;
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 全局滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
    box-shadow: var(--shadow-glow);
}

/* 选择文本样式 */
::selection {
    background: rgba(0, 255, 136, 0.3);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(0, 255, 136, 0.3);
    color: var(--text-primary);
}

/* 全局动画性能优化 */
* {
    will-change: auto;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 增强背景粒子效果 */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.8;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
    filter: blur(0.5px);
}

.particle:nth-child(odd) {
    width: 3px;
    height: 3px;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    animation-duration: 6s;
}

.particle:nth-child(even) {
    width: 2px;
    height: 2px;
    background: radial-gradient(circle, var(--secondary-color) 0%, transparent 70%);
    animation-duration: 10s;
    animation-delay: -2s;
}

.particle:nth-child(3n) {
    width: 4px;
    height: 4px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.8) 0%, transparent 70%);
    animation-duration: 12s;
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) translateX(0px) rotate(0deg) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-30px) translateX(10px) rotate(90deg) scale(1.2);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-60px) translateX(-5px) rotate(180deg) scale(0.8);
        opacity: 1;
    }
    75% {
        transform: translateY(-30px) translateX(-15px) rotate(270deg) scale(1.1);
        opacity: 0.6;
    }
}

/* 鼠标跟随粒子效果 */
.cursor-particle {
    position: fixed;
    width: 6px;
    height: 6px;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    animation: cursorFloat 2s ease-out forwards;
}

@keyframes cursorFloat {
    0% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: scale(0) rotate(360deg) translateY(-50px);
        opacity: 0;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

/* 英雄区域美化 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(0, 255, 136, 0.15) 0%, rgba(0, 161, 255, 0.15) 30%, rgba(116, 185, 255, 0.12) 60%, rgba(255, 107, 107, 0.10) 100%),
        radial-gradient(circle at 20% 20%, rgba(0, 255, 136, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 161, 255, 0.06) 0%, transparent 50%),
        linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.55)),
        url('2025-05-07_11-17-54.jpeg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
}

/* 英雄区域动态背景 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 15% 25%, rgba(0, 255, 136, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(0, 161, 255, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 45% 55%, rgba(255, 107, 107, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 70% 30%, rgba(116, 185, 255, 0.1) 0%, transparent 35%);
    animation: heroBackground 12s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 95px,
            rgba(0, 255, 136, 0.04) 97px,
            rgba(0, 255, 136, 0.04) 98px,
            transparent 100px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 95px,
            rgba(0, 161, 255, 0.04) 97px,
            rgba(0, 161, 255, 0.04) 98px,
            transparent 100px
        );
    animation: gridMove 20s linear infinite;
    pointer-events: none;
    opacity: 0.7;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    text-align: left;
    padding: var(--space-xl);
    backdrop-filter: blur(2px);
    border-radius: var(--radius-lg);
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero h1 {
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    font-weight: 800;
    margin-bottom: 28px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 40%, var(--accent-color) 80%, var(--info-color) 100%);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease-in-out infinite, textGlow 3s ease-in-out infinite alternate;
    line-height: 1.05;
    letter-spacing: -0.025em;
    text-shadow: 0 0 40px rgba(0, 255, 136, 0.6);
    position: relative;
}

.hero h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 120px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
    animation: underlineGlow 2s ease-in-out infinite alternate;
}

.hero p {
    font-size: clamp(1.2rem, 2.8vw, 1.6rem);
    margin-bottom: 45px;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.65;
    max-width: 650px;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* 英雄区域装饰元素 */
.hero-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 50%;
    animation: floatUpDown 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    right: 20%;
    animation-delay: 2s;
    width: 40px;
    height: 40px;
}

.floating-element:nth-child(3) {
    top: 30%;
    left: 10%;
    animation-delay: 4s;
    width: 80px;
    height: 80px;
    border-color: rgba(0, 161, 255, 0.3);
}

@keyframes heroBackground {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

@keyframes backgroundFlow {
    0% {
        background-position: 0% 0%, 0% 0%, 0% 0%;
    }
    25% {
        background-position: 25% 25%, 10% 10%, 5% 5%;
    }
    50% {
        background-position: 50% 50%, 20% 20%, 10% 10%;
    }
    75% {
        background-position: 75% 25%, 30% 10%, 15% 5%;
    }
    100% {
        background-position: 100% 0%, 40% 0%, 20% 0%;
    }
}

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

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes textGlow {
    0%, 100% {
        text-shadow:
            0 0 20px rgba(0, 255, 136, 0.5),
            0 0 40px rgba(0, 255, 136, 0.3),
            0 0 60px rgba(0, 255, 136, 0.1);
    }
    33% {
        text-shadow:
            0 0 25px rgba(0, 161, 255, 0.5),
            0 0 50px rgba(0, 161, 255, 0.3),
            0 0 75px rgba(0, 161, 255, 0.1);
    }
    66% {
        text-shadow:
            0 0 30px rgba(255, 107, 107, 0.5),
            0 0 60px rgba(255, 107, 107, 0.3),
            0 0 90px rgba(255, 107, 107, 0.1);
    }
}

/* 新增动画效果 */
@keyframes underlineGlow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
        transform: scaleX(1);
    }
    50% {
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.8);
        transform: scaleX(1.1);
    }
}

@keyframes buttonPulse {
    0% {
        transform: translateY(-4px) scale(1.03);
    }
    50% {
        transform: translateY(-5px) scale(1.05);
    }
    100% {
        transform: translateY(-4px) scale(1.03);
    }
}

@keyframes iconGradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes floatUpDown {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* 现代化按钮设计 - 增强版 */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 36px;
    background:
        linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%),
        linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    background-size: 100% 100%, 200% 200%;
    border: none;
    border-radius: var(--radius-xl);
    color: var(--bg-primary);
    font-size: 16px;
    font-weight: 700;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        var(--shadow-lg),
        0 0 0 1px rgba(255, 255, 255, 0.15) inset,
        var(--shadow-glow),
        0 4px 20px rgba(0, 255, 136, 0.2);
    position: relative;
    overflow: hidden;
    min-width: 180px;
    backdrop-filter: blur(15px);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.5px;
}

.cta-button:hover {
    transform: translateY(-4px) scale(1.03);
    background-position: 100% 100%, 100% 100%;
    box-shadow:
        0 15px 50px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.25) inset,
        0 0 40px rgba(0, 255, 136, 0.8),
        0 0 80px rgba(0, 161, 255, 0.4);
    background:
        linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 50%, var(--info-color) 100%),
        linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
    background-size: 100% 100%, 200% 200%;
    animation: buttonPulse 0.6s ease-out;
}

.cta-button:active {
    transform: translateY(-1px) scale(0.98);
    transition: var(--transition-fast);
}

.cta-button a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    gap: 8px;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: var(--transition-slow);
    z-index: 1;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transition: var(--transition-normal);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 0;
}

.cta-button:hover::after {
    width: 300px;
    height: 300px;
}

/* 按钮图标 */
.cta-button .icon {
    font-size: 18px;
    transition: var(--transition-normal);
}

.cta-button:hover .icon {
    transform: translateX(4px);
}

/* 次要按钮样式 */
.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--border-hover);
    color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

/* 按钮组 */
.button-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 32px;
}

/* 滚动进度指示器 - 现代化设计 */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
}

.scroll-progress {
    height: 100%;
    background: var(--primary-gradient);
    background-size: 200% 100%;
    width: 0%;
    transition: width 0.1s ease-out;
    position: relative;
    box-shadow:
        0 0 10px rgba(0, 255, 136, 0.5),
        0 0 20px rgba(0, 255, 136, 0.3);
    animation: progressGlow 2s ease-in-out infinite alternate;
}

.scroll-progress::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6));
    animation: progressShine 1.5s ease-in-out infinite;
}

@keyframes progressGlow {
    0% {
        box-shadow:
            0 0 10px rgba(0, 255, 136, 0.5),
            0 0 20px rgba(0, 255, 136, 0.3);
    }
    100% {
        box-shadow:
            0 0 15px rgba(0, 255, 136, 0.7),
            0 0 30px rgba(0, 255, 136, 0.5);
    }
}

@keyframes progressShine {
    0% {
        transform: translateX(-20px);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(20px);
        opacity: 0;
    }
}

/* 页面加载器 - 增强版 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 30% 30%, rgba(0, 255, 136, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(0, 161, 255, 0.15) 0%, transparent 50%),
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    backdrop-filter: blur(20px);
}

.page-loader::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 50px,
            rgba(0, 255, 136, 0.02) 52px
        );
    animation: loaderGrid 10s linear infinite;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    position: relative;
    z-index: 10;
    padding: 50px;
    background:
        linear-gradient(135deg, var(--bg-glass) 0%, rgba(255, 255, 255, 0.12) 50%, var(--bg-glass) 100%),
        radial-gradient(circle at 50% 50%, rgba(0, 255, 136, 0.08) 0%, transparent 60%);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(30px);
    box-shadow:
        var(--shadow-xl),
        var(--shadow-glow),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    animation: loaderContentFloat 3s ease-in-out infinite;
}

.loader-spinner {
    width: 80px;
    height: 80px;
    position: relative;
    margin: 0 auto 30px;
}

.loader-spinner::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid rgba(0, 255, 136, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
}

.loader-spinner::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60%;
    height: 60%;
    border: 3px solid rgba(0, 161, 255, 0.3);
    border-bottom: 3px solid var(--secondary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: spin 1s linear infinite reverse;
}

.loader-text h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 12px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textPulse 2s ease-in-out infinite;
}

.loader-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    opacity: 0.8;
    animation: fadeInOut 2s ease-in-out infinite;
}

/* 加载状态按钮 */
.cta-button.loading {
    pointer-events: none;
    opacity: 0.7;
}

.cta-button.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 2;
}

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

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

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

@keyframes fadeInOut {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 0.5; }
}

/* 特性区域美化 */
.features {
    padding: 120px 0;
    background:
        linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 50%, var(--bg-tertiary) 100%),
        radial-gradient(circle at 25% 25%, rgba(0, 255, 136, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 75% 75%, rgba(0, 161, 255, 0.06) 0%, transparent 60%),
        radial-gradient(circle at 50% 10%, rgba(116, 185, 255, 0.04) 0%, transparent 50%),
        linear-gradient(45deg, transparent 0%, rgba(255, 255, 255, 0.01) 50%, transparent 100%);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 100px,
            rgba(0, 255, 136, 0.02) 102px
        );
    animation: patternMove 30s linear infinite;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 64px;
    position: relative;
    z-index: 1;
}

.feature-card {
    background:
        linear-gradient(135deg, var(--bg-glass) 0%, rgba(255, 255, 255, 0.15) 50%, var(--bg-glass) 100%),
        radial-gradient(circle at 30% 30%, rgba(0, 255, 136, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 70% 70%, rgba(0, 161, 255, 0.06) 0%, transparent 60%);
    padding: 50px 40px;
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(30px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow:
        var(--shadow-lg),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 255, 136, 0.1) 0%,
        rgba(0, 161, 255, 0.1) 100%
    );
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

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

.feature-card:hover {
    transform: translateY(-15px) scale(1.03);
    border-color: var(--border-focus);
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.22) 50%, rgba(255, 255, 255, 0.18) 100%),
        radial-gradient(circle at 30% 30%, rgba(0, 255, 136, 0.12) 0%, transparent 60%),
        radial-gradient(circle at 70% 70%, rgba(0, 161, 255, 0.10) 0%, transparent 60%);
    box-shadow:
        var(--shadow-xl),
        var(--shadow-glow-strong),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 0 60px rgba(0, 255, 136, 0.3);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 28px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    position: relative;
    animation: iconGradientShift 4s ease-in-out infinite;
}

.feature-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.feature-card:hover .feature-icon::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.2);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.5));
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-size: 1.25rem;
    font-weight: 600;
    transition: var(--transition-normal);
}

.feature-card:hover h3 {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    transition: var(--transition-normal);
}

.feature-card:hover p {
    color: var(--text-primary);
}

/* 特性卡片装饰线条 */
.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.feature-card:hover::after {
    width: 80%;
}

/* 区域标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* 特性统计信息 */
.feature-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: var(--transition-normal);
}

.stat-item i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.feature-card:hover .stat-item {
    color: var(--text-secondary);
}

.feature-card:hover .stat-item i {
    color: var(--secondary-color);
    transform: scale(1.1);
}

/* 响应式特性统计 */
@media (max-width: 768px) {
    .feature-stats {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .stat-item {
        font-size: 0.8rem;
    }
}

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

/* 机器人展示区域美化 */
.robot-showcase {
    padding: 120px 0;
    background:
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 30%, var(--bg-secondary) 70%, var(--bg-quaternary) 100%),
        radial-gradient(circle at 20% 30%, rgba(0, 255, 136, 0.10) 0%, transparent 60%),
        radial-gradient(circle at 80% 70%, rgba(0, 161, 255, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 50% 90%, rgba(255, 107, 107, 0.04) 0%, transparent 50%),
        linear-gradient(-45deg, transparent 0%, rgba(255, 255, 255, 0.015) 50%, transparent 100%);
    position: relative;
    overflow: hidden;
}

.robot-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            135deg,
            transparent,
            transparent 80px,
            rgba(0, 255, 136, 0.02) 82px
        );
    animation: patternSlide 25s linear infinite;
}

.robot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 48px;
    margin-top: 64px;
    position: relative;
    z-index: 1;
}

.robot-card {
    background:
        linear-gradient(135deg, var(--bg-glass) 0%, rgba(255, 255, 255, 0.12) 50%, var(--bg-glass) 100%),
        radial-gradient(circle at 25% 25%, rgba(0, 255, 136, 0.06) 0%, transparent 50%);
    border-radius: var(--radius-2xl);
    padding: 36px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(25px);
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow:
        var(--shadow-md),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.robot-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 255, 136, 0.1) 0%,
        rgba(0, 161, 255, 0.1) 50%,
        rgba(255, 107, 107, 0.1) 100%
    );
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

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

.robot-card:hover {
    transform: translateY(-12px) scale(1.03);
    border-color: var(--border-focus);
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.18) 50%, rgba(255, 255, 255, 0.15) 100%),
        radial-gradient(circle at 25% 25%, rgba(0, 255, 136, 0.10) 0%, transparent 50%);
    box-shadow:
        var(--shadow-xl),
        var(--shadow-glow-strong),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 0 50px rgba(0, 255, 136, 0.25);
}

.robot-image {
    width: 100%;
    height: 320px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.robot-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(0, 255, 136, 0.1) 50%,
        transparent 70%
    );
    transform: translateX(-100%);
    transition: var(--transition-slow);
}

.robot-card:hover .robot-image::before {
    transform: translateX(100%);
}

.robot-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
    filter: brightness(0.9) contrast(1.1);
}

.robot-card:hover .robot-image img {
    transform: scale(1.05);
    filter: brightness(1) contrast(1.2);
}

/* 机器人卡片内容 */
.robot-card h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 16px;
    transition: var(--transition-normal);
}

.robot-card:hover h3 {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.robot-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 20px;
    transition: var(--transition-normal);
}

.robot-card:hover p {
    color: var(--text-primary);
}

/* 机器人特性标签 */
.robot-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.robot-feature-tag {
    padding: 6px 12px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 16px;
    font-size: 0.8rem;
    color: var(--primary-color);
    transition: var(--transition-normal);
}

.robot-card:hover .robot-feature-tag {
    background: rgba(0, 255, 136, 0.2);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

@keyframes patternSlide {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(80px) translateY(80px); }
}

.drone-section {
    padding: 100px 0;
    background: #0f0f0f;
    position: relative;
    overflow: hidden;
}

.drone-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 161, 255, 0.1) 0%, transparent 50%),
        linear-gradient(45deg, rgba(0, 255, 136, 0.05) 0%, transparent 50%),
        repeating-linear-gradient(45deg, rgba(0, 255, 136, 0.02) 0px, rgba(0, 255, 136, 0.02) 1px, transparent 1px, transparent 10px);
    animation: backgroundPulse 8s infinite;
}

.ufo-beam {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 200px;
    background: linear-gradient(to bottom, 
        rgba(0, 255, 136, 0.2),
        rgba(0, 255, 136, 0.1),
        transparent);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    animation: beamPulse 3s infinite;
    filter: blur(10px);
}

.ufo-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
}

.ufo-ring {
    position: absolute;
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 50%;
    animation: ringRotate 10s linear infinite;
}

.ufo-ring:nth-child(1) {
    width: 100%;
    height: 100%;
    animation-duration: 20s;
}

.ufo-ring:nth-child(2) {
    width: 80%;
    height: 80%;
    animation-duration: 15s;
    animation-direction: reverse;
}

.ufo-ring:nth-child(3) {
    width: 60%;
    height: 60%;
    animation-duration: 10s;
}

.ufo-lights {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.ufo-light {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #00ff88;
    border-radius: 50%;
    animation: lightPulse 2s infinite;
}

.drone-container {
    height: 600px;
    position: relative;
    margin: 40px 0;
    perspective: 1000px;
}

.drone-path {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px dashed rgba(0, 255, 136, 0.3);
    border-radius: 50%;
    animation: rotatePath 20s linear infinite;
}

.drone-path::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px dashed rgba(0, 161, 255, 0.3);
    border-radius: 50%;
    transform: rotate(45deg);
}

.drone-path::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(0, 255, 136, 0.1);
    border-radius: 50%;
    transform: rotate(90deg);
    animation: pathGlow 4s infinite;
}

.drone-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 136, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(0, 255, 136, 0.1),
        transparent
    );
    transform: rotate(45deg);
    animation: cardShine 3s infinite;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 255, 136, 0.5);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.2);
}

.stat-value {
    font-size: 2rem;
    color: #00ff88;
    margin-bottom: 10px;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
    position: relative;
}

.stat-value::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00ff88, transparent);
}

.stat-label {
    color: #888;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.drone-info {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    padding: 15px 30px;
    border-radius: 30px;
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
    font-size: 0.9rem;
    white-space: nowrap;
    animation: infoPulse 2s infinite;
    backdrop-filter: blur(5px);
}

.drone-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    animation: infoShine 2s infinite;
}

.drone-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.control-button {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
}

.control-button:hover {
    background: rgba(0, 255, 136, 0.2);
    transform: scale(1.05);
}

.drone-status {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #00ff88;
    animation: statusPulse 2s infinite;
}

.status-text {
    color: #00ff88;
    font-size: 0.9rem;
}

.drone-data {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
    font-size: 0.8rem;
    backdrop-filter: blur(5px);
}

.data-item {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.data-label {
    color: #888;
}

.data-value {
    color: #00ff88;
    font-weight: bold;
}

.data-progress {
    width: 100px;
    height: 4px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00a1ff);
    animation: progressFill 2s infinite;
}

@keyframes beamPulse {
    0%, 100% { opacity: 0.3; transform: translateX(-50%) scale(1); }
    50% { opacity: 0.5; transform: translateX(-50%) scale(1.1); }
}

@keyframes ringRotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes lightPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.5); }
}

@keyframes cardShine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

@keyframes infoShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes statusPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes pathGlow {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.3; }
}

@keyframes progressFill {
    0% { width: 0%; }
    50% { width: 100%; }
    100% { width: 0%; }
}

.drone-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #00ff88;
    border-radius: 50%;
    animation: particleFloat 3s infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(0) scale(1); opacity: 0; }
    50% { transform: translateY(-20px) scale(1.5); opacity: 1; }
    100% { transform: translateY(-40px) scale(1); opacity: 0; }
}

@keyframes glow {
    from { text-shadow: 0 0 10px #00ff88, 0 0 20px #00ff88; }
    to { text-shadow: 0 0 20px #00a1ff, 0 0 30px #00a1ff; }
}

/* 采购/合作区域美化 */
.contact-section {
    padding: 120px 0;
    background:
        linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 25%, var(--bg-secondary) 75%, var(--bg-quaternary) 100%),
        radial-gradient(circle at 15% 40%, rgba(0, 255, 136, 0.12) 0%, transparent 65%),
        radial-gradient(circle at 85% 60%, rgba(0, 161, 255, 0.10) 0%, transparent 65%),
        radial-gradient(circle at 50% 20%, rgba(116, 185, 255, 0.06) 0%, transparent 55%),
        linear-gradient(60deg, transparent 0%, rgba(255, 255, 255, 0.02) 50%, transparent 100%);
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            60deg,
            transparent,
            transparent 120px,
            rgba(0, 255, 136, 0.02) 122px
        );
    animation: contactPattern 20s linear infinite;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 64px;
    position: relative;
    z-index: 1;
}

.contact-item {
    background: var(--bg-glass);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 255, 136, 0.1) 0%,
        rgba(0, 161, 255, 0.1) 100%
    );
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.contact-item:hover::before {
    opacity: 1;
}

.contact-item:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow:
        var(--shadow-lg),
        var(--shadow-glow),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.contact-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    display: inline-block;
    transition: var(--transition-normal);
    position: relative;
}

.contact-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.contact-item:hover .contact-icon::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.2);
}

.contact-item:hover .contact-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.5));
}

.contact-item h4 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-size: 1.2rem;
    font-weight: 600;
    transition: var(--transition-normal);
}

.contact-item:hover h4 {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 20px;
    transition: var(--transition-normal);
}

.contact-item:hover p {
    color: var(--text-primary);
}

/* 联系按钮 */
.contact-action {
    margin-top: 20px;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-normal);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.contact-btn:hover {
    background: rgba(0, 255, 136, 0.2);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* 邮箱组 */
.email-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.email-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.email-item:hover {
    background: rgba(0, 0, 0, 0.4);
    border-color: var(--border-color);
}

.email-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    min-width: 80px;
}

.email-value {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 12px;
}

.copy-email-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-normal);
}

.copy-email-btn:hover {
    background: rgba(0, 255, 136, 0.1);
    transform: scale(1.1);
}

/* 表单通用样式 */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.form-group label i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

.submit-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-primary);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow:
        var(--shadow-md),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    position: relative;
    overflow: hidden;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow:
        var(--shadow-lg),
        var(--shadow-glow),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
}

.submit-button:active {
    transform: translateY(0);
    transition: var(--transition-fast);
}

.submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: var(--transition-slow);
}

.submit-button:hover::before {
    left: 100%;
}

/* 响应式表单 */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .contact-form {
        gap: 20px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px 14px;
        font-size: 0.9rem;
    }

    .submit-button {
        padding: 14px 28px;
        font-size: 0.95rem;
    }
}

/* 快速留言触发按钮 */
.quick-message-trigger {
    text-align: center;
    margin-top: 48px;
}

.quick-message-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    border-radius: var(--radius-xl);
    color: var(--bg-primary);
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow:
        var(--shadow-lg),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset,
        var(--shadow-glow);
    position: relative;
    overflow: hidden;
    min-width: 200px;
}

.quick-message-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        0 0 40px rgba(0, 255, 136, 0.8);
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
}

.quick-message-btn i {
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.quick-message-btn:hover i {
    transform: scale(1.2) rotate(10deg);
}

.btn-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-normal);
    border-radius: inherit;
}

.quick-message-btn:hover .btn-glow {
    opacity: 1;
    animation: pulse 2s ease-in-out infinite;
}

.quick-message-hint {
    margin-top: 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 浮动联系按钮组 - 增强版 */
.floating-contact-group {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: var(--z-fixed);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 18px;
}

/* 主按钮 - 现代化设计 */
.floating-main-btn {
    width: 65px;
    height: 65px;
    background:
        linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%),
        linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    background-size: 100% 100%, 200% 200%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow:
        var(--shadow-lg),
        var(--shadow-glow),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--bg-primary);
    font-size: 1.6rem;
    position: relative;
    z-index: 1001;
    backdrop-filter: blur(10px);
    animation: floatingPulse 3s ease-in-out infinite;
}

.floating-main-btn:hover {
    transform: scale(1.1);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.3),
        0 0 50px rgba(0, 255, 136, 0.8);
}

.floating-main-btn.active {
    transform: rotate(45deg);
    background: linear-gradient(135deg, var(--error-color) 0%, #ff6b6b 100%);
}

/* 子按钮组 */
.floating-sub-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    pointer-events: none;
}

.floating-sub-buttons.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

/* 子按钮样式 */
.floating-sub-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    color: var(--bg-primary);
    font-size: 1.2rem;
    position: relative;
    transform: scale(0.8);
}

.floating-sub-buttons.active .floating-sub-btn {
    transform: scale(1);
}

.floating-sub-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* 各个子按钮的颜色 */
.floating-message-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.floating-wechat-btn {
    background: linear-gradient(135deg, #07c160 0%, #00d4aa 100%);
}

.floating-phone-btn {
    background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
}

.floating-email-btn {
    background: linear-gradient(135deg, #ea4335 0%, #fbbc04 100%);
}

/* 工具提示 */
.floating-btn-tooltip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    pointer-events: none;
    z-index: 1002;
}

.floating-sub-btn:hover .floating-btn-tooltip,
.floating-main-btn:hover .floating-btn-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(-8px);
}

/* 脉冲动画 */
.floating-btn-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--primary-color);
    opacity: 0.3;
    animation: pulse 2s ease-in-out infinite;
}

/* 子按钮动画延迟 */
.floating-sub-buttons.active .floating-sub-btn:nth-child(1) {
    transition-delay: 0.1s;
}

.floating-sub-buttons.active .floating-sub-btn:nth-child(2) {
    transition-delay: 0.15s;
}

.floating-sub-buttons.active .floating-sub-btn:nth-child(3) {
    transition-delay: 0.2s;
}

.floating-sub-buttons.active .floating-sub-btn:nth-child(4) {
    transition-delay: 0.25s;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .floating-contact-group {
        bottom: 20px;
        right: 20px;
        gap: 12px;
    }

    .floating-main-btn {
        width: 56px;
        height: 56px;
        font-size: 1.3rem;
    }

    .floating-sub-btn {
        width: 46px;
        height: 46px;
        font-size: 1.1rem;
    }

    .floating-btn-tooltip {
        display: none;
    }
}

/* 快速留言弹窗 */
.quick-message-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.quick-message-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transition: var(--transition-normal);
    box-shadow:
        var(--shadow-lg),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.quick-message-modal.active .modal-content {
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal-header h3 i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    transform: scale(1.1);
}

.modal-body {
    padding: 32px;
}

.modal-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* 直接发邮件按钮 */
.btn-email-direct {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    border: 1px solid var(--secondary-color);
    border-radius: var(--radius-md);
    color: var(--bg-primary);
    font-size: 0.95rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.btn-email-direct:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow:
        var(--shadow-md),
        0 0 20px rgba(0, 161, 255, 0.4);
}

.btn-email-direct::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: var(--transition-slow);
}

.btn-email-direct:hover::before {
    left: 100%;
}

/* 弹窗动画 */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1) translateY(0);
    }
}

.quick-message-modal.active .modal-content {
    animation: modalSlideIn 0.3s ease-out;
}

/* 响应式弹窗 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px;
    }

    .modal-header {
        padding: 20px 24px;
    }

    .modal-header h3 {
        font-size: 1.2rem;
    }

    .modal-body {
        padding: 24px;
    }

    .modal-actions {
        flex-direction: column-reverse;
        gap: 12px;
    }

    .btn-secondary,
    .btn-email-direct,
    .submit-button {
        width: 100%;
        justify-content: center;
    }

    .floating-message-btn {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
        font-size: 1.3rem;
    }

    .floating-btn-tooltip {
        display: none;
    }
}

@media (max-width: 480px) {
    .quick-message-btn {
        padding: 16px 32px;
        font-size: 1rem;
        min-width: 180px;
    }

    .modal-content {
        width: 98%;
        max-height: 95vh;
    }

    .modal-header {
        padding: 16px 20px;
    }

    .modal-body {
        padding: 20px;
    }
}

@keyframes contactPattern {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(120px) translateY(120px); }
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(0, 255, 136, 0.1),
        transparent
    );
    transform: rotate(45deg);
    animation: formShine 3s infinite;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #00ff88;
    font-size: 1rem;
    text-shadow: 0 0 5px rgba(0, 255, 136, 0.3);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(45deg, #00ff88, #00a1ff);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transform: rotate(45deg);
    animation: buttonShine 3s infinite;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.3);
}

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

@keyframes contactShine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

@keyframes formShine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

@keyframes buttonShine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

/* 响应式设计 - 超小屏幕设备 (320px - 575px) */
@media (max-width: 575px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-container {
        padding: 0 10px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .logo-icon {
        font-size: 1rem;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 20px;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        display: flex;
        transform: translateX(0);
    }

    .nav-link {
        font-size: 1.1rem;
        margin: 8px 0;
        padding: 12px 25px;
        border-radius: 20px;
        text-align: center;
        min-width: 180px;
    }

    .nav-dropdown {
        width: 100%;
        text-align: center;
    }

    .dropdown-content {
        position: static;
        background: rgba(0, 255, 136, 0.1);
        box-shadow: none;
        padding: 8px;
        margin: 8px 0;
        border-radius: 12px;
        border: 1px solid rgba(0, 255, 136, 0.3);
        transform: none;
        opacity: 1;
        display: block;
    }

    .dropdown-content a {
        padding: 8px 12px;
        margin: 3px 0;
        border-radius: 8px;
        display: block;
        font-size: 0.9rem;
    }

    .container {
        padding: 0 10px;
    }

    .hero {
        height: 60vh;
        text-align: center;
        padding: 0 5px;
    }

    .hero h1 {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 10px;
    }

    .hero p {
        font-size: 0.9rem;
        margin-bottom: 15px;
        line-height: 1.4;
    }

    .cta-button {
        padding: 10px 18px;
        font-size: 13px;
        border-radius: 25px;
    }

    .features {
        padding: 60px 0;
    }

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

    .feature-card {
        padding: 15px;
        text-align: center;
        border-radius: 12px;
    }

    .feature-icon {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }

    .feature-card h3 {
        font-size: 1rem;
        margin-bottom: 10px;
    }

    .feature-card p {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .robot-showcase {
        padding: 60px 0;
    }

    .robot-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 30px;
    }

    .robot-card {
        padding: 15px;
        border-radius: 15px;
    }

    .robot-image {
        height: 180px;
        margin-bottom: 15px;
        border-radius: 8px;
    }

    .robot-card h3 {
        font-size: 1rem;
        margin-bottom: 10px;
    }

    .robot-card p {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .drone-section {
        padding: 60px 0;
    }

    .drone-container {
        height: 250px;
        margin: 15px 0;
    }

    .drone-stats {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-top: 20px;
    }

    .stat-card {
        padding: 12px;
        border-radius: 12px;
    }

    .stat-value {
        font-size: 1.2rem;
        margin-bottom: 8px;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .drone-controls {
        position: static;
        justify-content: center;
        margin: 10px 0;
        flex-wrap: wrap;
        gap: 5px;
    }

    .control-button {
        margin: 2px;
        padding: 5px 10px;
        font-size: 0.65rem;
        border-radius: 15px;
    }

    .drone-data {
        position: static;
        margin: 10px 0;
        transform: none;
        width: 100%;
        box-sizing: border-box;
    }

    .data-item {
        margin-bottom: 8px;
        font-size: 0.75rem;
    }

    .drone-info {
        position: static;
        margin: 10px 0;
        padding: 10px 20px;
        font-size: 0.8rem;
        border-radius: 20px;
        text-align: center;
    }

    .quantum-medical {
        padding: 60px 0;
    }

    .quantum-data {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 20px;
    }

    .quantum-core {
        width: 150px;
        height: 150px;
    }

    .quantum-card {
        padding: 12px;
        border-radius: 12px;
    }

    .quantum-card h3 {
        font-size: 1rem;
        margin-bottom: 8px;
    }

    .quantum-card p {
        font-size: 0.8rem;
        line-height: 1.4;
    }

    .quantum-stats {
        margin-top: 15px;
        padding: 12px;
        border-radius: 8px;
    }

    .quantum-stat {
        margin-bottom: 8px;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .stat-value {
        font-size: 1rem;
    }

    .holographic-diagnosis {
        padding: 60px 0;
    }

    .hologram-container {
        height: 300px;
        margin: 15px 0;
        border-radius: 15px;
    }

    .scan-data {
        top: 10px;
        right: 10px;
        padding: 10px;
        font-size: 0.75rem;
        border-radius: 8px;
    }

    .scan-controls {
        bottom: 10px;
        right: 10px;
        gap: 5px;
    }

    .scan-button {
        padding: 6px 12px;
        font-size: 0.7rem;
        border-radius: 15px;
    }

    .scan-status {
        top: 10px;
        left: 10px;
        padding: 8px 12px;
        border-radius: 15px;
    }

    .status-text {
        font-size: 0.8rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 20px;
    }

    .feature-item {
        padding: 15px;
        border-radius: 12px;
    }

    .feature-icon {
        font-size: 2rem;
        margin-bottom: 15px;
    }

    .feature-item h3 {
        font-size: 1rem;
        margin-bottom: 10px;
    }

    .feature-item p {
        font-size: 0.8rem;
        line-height: 1.4;
    }

    .nanobot-section {
        padding: 60px 0;
    }

    .nanobot-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 20px;
    }

    .nanobot-visualization {
        height: 150px;
        margin-bottom: 15px;
        border-radius: 12px;
    }

    .nanobot-card {
        padding: 15px;
        border-radius: 15px;
    }

    .nanobot-card h3 {
        font-size: 1rem;
        margin-bottom: 8px;
    }

    .nanobot-card p {
        font-size: 0.8rem;
        line-height: 1.4;
    }

    .nanobot-status {
        top: 10px;
        left: 10px;
        padding: 6px 10px;
        border-radius: 15px;
    }

    .status-text {
        font-size: 0.75rem;
    }

    .nanobot-metrics {
        bottom: 10px;
        left: 10px;
        right: 10px;
        padding: 10px;
        border-radius: 12px;
    }

    .metric-label {
        font-size: 0.7rem;
    }

    .metric-value {
        font-size: 0.9rem;
    }

    .nanobot-stats {
        margin-top: 10px;
    }

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

    .stat-item .stat-value {
        font-size: 1.1rem;
        color: #00ff88;
        display: block;
        margin-bottom: 5px;
    }

    .stat-item .stat-label {
        font-size: 0.8rem;
        color: #888;
    }

    .contact-section {
        padding: 60px 0;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 30px;
    }

    .contact-item {
        padding: 15px;
        border-radius: 12px;
    }

    .contact-icon {
        font-size: 2rem;
        margin-bottom: 15px;
    }

    .contact-item h4 {
        font-size: 1rem;
        margin-bottom: 10px;
    }

    .contact-item p {
        font-size: 0.9rem;
    }

    .contact-form {
        padding: 15px;
        margin: 15px 0;
        border-radius: 15px;
    }

    .form-group {
        margin-bottom: 20px;
    }

    .form-group label {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.9rem;
        border-radius: 6px;
    }

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

    .submit-button {
        padding: 12px;
        font-size: 1rem;
        border-radius: 6px;
    }

    .footer {
        padding: 30px 0 12px; /* 更紧凑 */
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 12px; /* 更紧凑 */
        text-align: center;
    }

    .footer-section h3 {
        font-size: 0.85rem; /* 更小 */
        margin-bottom: 8px;
    }

    .footer-section p {
        font-size: 0.7rem; /* 更小 */
        line-height: 1.3;
        margin-bottom: 8px;
    }

    .footer-links a {
        font-size: 0.7rem;
    }

    .friend-links-grid {
        grid-template-columns: 1fr;
        gap: 6px; /* 更紧凑 */
    }

    .friend-link {
        padding: 4px;
        border-radius: 4px;
    }

    .friend-link span {
        font-size: 0.65rem;
    }

    .social-links {
        justify-content: center;
        gap: 6px; /* 更紧凑 */
        margin-top: 8px;
    }

    .social-link {
        padding: 4px 8px;
        font-size: 0.65rem;
        border-radius: 8px;
    }

    .footer-bottom {
        margin-top: 10px;
        font-size: 0.65rem;
        padding: 0 5px;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        height: 100vh;
        padding: 20px 0;
    }

    .hero h1 {
        font-size: 2rem;
        margin-bottom: 10px;
    }

    .hero p {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .navbar {
        padding: 10px 0;
    }

    .drone-container {
        height: 200px;
    }

    .quantum-core {
        width: 150px;
        height: 150px;
    }

    .hologram-container {
        height: 250px;
    }

    .nanobot-visualization {
        height: 120px;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero {
        background-size: cover;
        background-attachment: fixed;
    }

    .robot-image img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }

    .feature-icon,
    .contact-icon {
        text-rendering: optimizeLegibility;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .drone-controls,
    .scan-controls,
    .control-button,
    .scan-button,
    .cta-button {
        display: none !important;
    }

    .hero {
        height: auto;
        background: none;
        color: #000;
    }

    .hero h1 {
        color: #000;
        text-shadow: none;
        background: none;
        -webkit-background-clip: initial;
        -webkit-text-fill-color: initial;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .feature-card,
    .robot-card,
    .quantum-card,
    .nanobot-card,
    .contact-item {
        background: #f5f5f5;
        border: 1px solid #ddd;
        color: #000;
        break-inside: avoid;
    }

    .footer {
        background: none;
        color: #000;
    }

    .footer-section h3 {
        color: #000;
    }

    .footer-links a {
        color: #000;
    }
}

/* 量子医疗模块样式 */
.quantum-medical {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.quantum-medical::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(0, 161, 255, 0.1) 0%, transparent 50%),
        repeating-linear-gradient(45deg, rgba(0, 255, 136, 0.02) 0px, rgba(0, 255, 136, 0.02) 1px, transparent 1px, transparent 10px);
    animation: quantumPulse 10s infinite;
}

.quantum-core {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.quantum-sphere {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: spherePulse 4s infinite;
    box-shadow: 0 0 50px rgba(0, 255, 136, 0.3);
}

.quantum-rings {
    position: absolute;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.quantum-ring {
    position: absolute;
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 50%;
    animation: ringRotate 10s linear infinite;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
}

.quantum-ring:nth-child(1) { 
    width: 100%; 
    height: 100%; 
    animation-duration: 20s;
    transform: rotateX(60deg);
}

.quantum-ring:nth-child(2) { 
    width: 80%; 
    height: 80%; 
    animation-duration: 15s; 
    animation-direction: reverse;
    transform: rotateY(60deg);
}

.quantum-ring:nth-child(3) { 
    width: 60%; 
    height: 60%; 
    animation-duration: 10s;
    transform: rotateZ(60deg);
}

.quantum-data {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.quantum-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 136, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.quantum-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(0, 255, 136, 0.1),
        transparent
    );
    transform: rotate(45deg);
    animation: cardShine 3s infinite;
}

.quantum-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 255, 136, 0.5);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.2);
}

.quantum-stats {
    margin-top: 20px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.quantum-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.quantum-stat:last-child {
    margin-bottom: 0;
}

.stat-label {
    color: #888;
    font-size: 0.9rem;
}

.stat-value {
    color: #00ff88;
    font-weight: bold;
    font-size: 1.1rem;
}

.quantum-progress {
    width: 100%;
    height: 4px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 5px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00a1ff);
    width: 0%;
    transition: width 0.3s ease;
}

.quantum-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.quantum-particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #00ff88;
    border-radius: 50%;
    animation: particleFloat 3s infinite;
}

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

@keyframes spherePulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes ringRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes particleFloat {
    0% { transform: translateY(0) scale(1); opacity: 0; }
    50% { transform: translateY(-20px) scale(1.5); opacity: 1; }
    100% { transform: translateY(-40px) scale(1); opacity: 0; }
}

/* 全息诊断模块样式 */
.holographic-diagnosis {
    padding: 100px 0;
    background: #0f0f0f;
    position: relative;
    overflow: hidden;
}

.holographic-diagnosis::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 161, 255, 0.1) 0%, transparent 50%),
        repeating-linear-gradient(45deg, rgba(0, 255, 136, 0.02) 0px, rgba(0, 255, 136, 0.02) 1px, transparent 1px, transparent 10px);
    animation: hologramBackground 10s infinite;
}

.hologram-container {
    position: relative;
    height: 600px;
    margin: 40px 0;
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    overflow: hidden;
}

.scan-data {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
    font-family: monospace;
    font-size: 0.9rem;
    backdrop-filter: blur(5px);
}

.scan-data-item {
    margin: 5px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.scan-data-label {
    color: #888;
}

.scan-data-value {
    color: #00ff88;
}

.scan-progress {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    max-width: 400px;
    background: rgba(0, 0, 0, 0.8);
    padding: 10px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.progress-bar-container {
    width: 100%;
    height: 4px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00a1ff);
    width: 0%;
    transition: width 0.3s ease;
}

.scan-status {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.8);
    padding: 10px 15px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #00ff88;
    border-radius: 50%;
    animation: statusPulse 2s infinite;
}

.scan-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.scan-button {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
}

.scan-button:hover {
    background: rgba(0, 255, 136, 0.2);
    transform: scale(1.05);
}

.hologram-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
    width: 80%;
    max-width: 600px;
}

.hologram-features {
    margin-top: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 136, 0.2);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 255, 136, 0.5);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #00ff88;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.feature-item h3 {
    color: #00ff88;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.feature-item p {
    color: #888;
    font-size: 0.9rem;
    line-height: 1.6;
}

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

@keyframes hologramRotate {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}

@keyframes hologramPulse {
    0% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
    100% { opacity: 0.3; transform: scale(1); }
}

@keyframes scan {
    0% { top: 0; opacity: 0; }
    50% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .hologram {
        width: 200px;
        height: 200px;
    }

    .hologram-content {
        width: 90%;
    }
}

/* 智能纳米机器人模块样式 */
.nanobot-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    position: relative;
    overflow: hidden;
}

.nanobot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.nanobot-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 136, 0.2);
    transition: all 0.3s ease;
}

.nanobot-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    animation: cardShine 3s infinite;
}

.nanobot-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 255, 136, 0.5);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
}

.nanobot-visualization {
    position: relative;
    height: 300px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 20px;
}

.nanobot-data-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.data-stream {
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, #00ff88, transparent);
    animation: dataFlow 2s linear infinite;
}

.data-stream:nth-child(1) { left: 20%; animation-delay: 0s; }
.data-stream:nth-child(2) { left: 50%; animation-delay: 0.5s; }
.data-stream:nth-child(3) { left: 80%; animation-delay: 1s; }

.nanobot-status {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.8);
    padding: 8px 15px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: #00ff88;
    border-radius: 50%;
    animation: statusPulse 2s infinite;
}

.status-text {
    color: #00ff88;
    font-size: 0.9rem;
}

.nanobot-metrics {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 15px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.metric {
    margin-bottom: 10px;
}

.metric:last-child {
    margin-bottom: 0;
}

.metric-label {
    color: #888;
    font-size: 0.8rem;
    display: block;
    margin-bottom: 5px;
}

.metric-value {
    color: #00ff88;
    font-size: 1.1rem;
    font-weight: bold;
    float: right;
}

.metric-bar {
    width: 100%;
    height: 4px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 5px;
}

.metric-fill {
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00a1ff);
    width: 0%;
    transition: width 0.3s ease;
}

@keyframes dataFlow {
    0% { transform: translateY(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(100%); opacity: 0; }
}

@keyframes statusPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* 导航栏样式 - 增强版 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background:
        linear-gradient(135deg, rgba(0, 0, 0, 0.95) 0%, rgba(5, 5, 5, 0.92) 100%),
        radial-gradient(circle at 50% 0%, rgba(0, 255, 136, 0.06) 0%, transparent 70%);
    backdrop-filter: blur(25px);
    z-index: 1000;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 255, 136, 0.12);
    transition: var(--transition-normal);
    box-shadow:
        0 2px 25px rgba(0, 0, 0, 0.4),
        0 1px 0 rgba(255, 255, 255, 0.03) inset;
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 120px,
            rgba(0, 255, 136, 0.015) 122px
        );
    pointer-events: none;
    opacity: 0.8;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 25px;
    height: 60px;
}

.logo {
    color: var(--text-primary);
    font-size: 1.35rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-normal);
    position: relative;
    z-index: 10;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
}

.logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.5));
}

.logo-icon {
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
        filter: drop-shadow(0 0 4px rgba(0, 255, 136, 0.25));
    }
    50% {
        transform: scale(1.08);
        filter: drop-shadow(0 0 12px rgba(0, 255, 136, 0.5));
    }
}

/* 导航栏滚动时的样式变化 */
.navbar.scrolled {
    padding: 8px 0;
    background:
        linear-gradient(135deg, rgba(0, 0, 0, 0.98) 0%, rgba(5, 5, 5, 0.95) 100%),
        radial-gradient(circle at 50% 0%, rgba(0, 255, 136, 0.08) 0%, transparent 70%);
    box-shadow:
        0 3px 30px rgba(0, 0, 0, 0.5),
        0 1px 0 rgba(255, 255, 255, 0.05) inset;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled .logo {
    font-size: 1.25rem;
}

.navbar.scrolled .logo-icon {
    font-size: 1.1rem;
}

.navbar.scrolled .nav-link {
    font-size: 0.8rem;
    padding: 6px 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.25s ease-out;
    position: relative;
    border: 1px solid transparent;
    letter-spacing: 0.3px;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(0, 255, 136, 0.08);
    border-color: rgba(0, 255, 136, 0.25);
    transform: translateY(-1px) translateZ(0);
    box-shadow: 0 3px 10px rgba(0, 255, 136, 0.15);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 255, 136, 0.12);
    border-color: rgba(0, 255, 136, 0.35);
    box-shadow: 0 2px 6px rgba(0, 255, 136, 0.25);
    font-weight: 600;
}

.nav-link.active:hover {
    background: rgba(0, 255, 136, 0.15);
    border-color: rgba(0, 255, 136, 0.4);
    box-shadow: 0 3px 8px rgba(0, 255, 136, 0.3);
}

.nav-link.gallery-link {
    color: #00ff88;
    background: rgba(0,255,136,0.08);
    font-weight: bold;
    border: 1px solid rgba(0,255,136,0.2);
    box-shadow: 0 2px 8px rgba(0,255,136,0.08);
    letter-spacing: 1px;
}

.nav-link.gallery-link:hover {
    color: #fff;
    background: linear-gradient(90deg, #00ff88 0%, #00a1ff 100%);
    border: 1px solid #00ff88;
    box-shadow: 0 4px 16px rgba(0,255,136,0.18);
    text-shadow: 0 0 8px #00ff88;
}

/* 导航栏下拉菜单样式 */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-arrow {
    font-size: 0.8em;
    margin-left: 5px;
    transition: transform 0.3s ease;
    display: ruby;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(0, 0, 0, 0.9);
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 10px 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.3s ease;
}

.nav-dropdown:hover .dropdown-content {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

.dropdown-content a {
    color: #fff;
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    font-size: 0.9em;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.dropdown-content a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #00ff88;
    border-left: 3px solid #00ff88;
    padding-left: 25px;
}

/* 移动端汉堡菜单 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #00ff88;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* 响应式设计 - 超大屏幕 (1920px+) */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }

    .hero h1 {
        font-size: 5rem;
    }

    .hero p {
        font-size: 1.8rem;
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }

    .feature-card {
        padding: 40px;
    }

    .feature-icon {
        font-size: 4rem;
    }
}

/* 响应式设计 - 大屏幕 (1200px - 1919px) */
@media (min-width: 1200px) and (max-width: 1919px) {
    .container {
        max-width: 1140px;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

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

/* 响应式设计 - 中等屏幕 (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero p {
        font-size: 1.3rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .robot-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .quantum-data {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }

    .nanobot-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .contact-info {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* 响应式设计 - 平板设备 (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
        padding: 0 15px;
    }

    .hero {
        height: 80vh;
        text-align: center;
    }

    .hero h1 {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }

    .hero p {
        font-size: 1.2rem;
        margin-bottom: 25px;
    }

    .cta-button {
        padding: 12px 25px;
        font-size: 16px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .feature-card {
        padding: 25px;
    }

    .feature-icon {
        font-size: 2.5rem;
    }

    .robot-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .robot-image {
        height: 250px;
    }

    .drone-container {
        height: 400px;
    }

    .drone-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .quantum-data {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .quantum-core {
        width: 250px;
        height: 250px;
    }

    .nanobot-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .nanobot-visualization {
        height: 250px;
    }

    .contact-info {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .friend-links-grid {
        grid-template-columns: 1fr;
    }
}

/* 响应式设计 - 手机设备 (576px - 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 20px;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        display: flex;
        transform: translateX(0);
    }

    .nav-link {
        font-size: 1.2rem;
        margin: 10px 0;
        padding: 15px 30px;
        border-radius: 25px;
        text-align: center;
        min-width: 200px;
    }

    .nav-dropdown {
        width: 100%;
        text-align: center;
    }

    .dropdown-content {
        position: static;
        background: rgba(0, 255, 136, 0.1);
        box-shadow: none;
        padding: 10px;
        margin: 10px 0;
        border-radius: 15px;
        border: 1px solid rgba(0, 255, 136, 0.3);
        transform: none;
        opacity: 1;
        display: block;
    }

    .dropdown-content a {
        padding: 10px 15px;
        margin: 5px 0;
        border-radius: 10px;
        display: block;
    }

    .container {
        padding: 0 15px;
    }

    .hero {
        height: 70vh;
        text-align: center;
        padding: 0 10px;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
        margin-bottom: 15px;
    }

    .hero p {
        font-size: 1rem;
        margin-bottom: 20px;
    }

    .cta-button {
        padding: 12px 20px;
        font-size: 14px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 20px;
        text-align: center;
    }

    .feature-icon {
        font-size: 2rem;
        margin-bottom: 15px;
    }

    .robot-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .robot-image {
        height: 200px;
    }

    .drone-container {
        height: 300px;
        margin: 20px 0;
    }

    .drone-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-value {
        font-size: 1.3rem;
    }

    .drone-controls {
        position: static;
        justify-content: center;
        margin: 15px 0;
        flex-wrap: wrap;
    }

    .control-button {
        margin: 5px;
        padding: 6px 12px;
        font-size: 0.7rem;
    }

    .drone-data {
        position: static;
        margin: 15px 0;
        transform: none;
        width: 100%;
        box-sizing: border-box;
    }

    .quantum-data {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .quantum-core {
        width: 200px;
        height: 200px;
    }

    .quantum-card {
        padding: 15px;
    }

    .nanobot-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .nanobot-visualization {
        height: 200px;
    }

    .nanobot-card {
        padding: 20px;
    }

    .hologram-container {
        height: 400px;
        margin: 20px 0;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-item {
        padding: 20px;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-item {
        padding: 20px;
    }

    .contact-form {
        padding: 20px;
        margin: 20px 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .friend-links-grid {
        grid-template-columns: 1fr;
    }

    .social-links {
        justify-content: center;
    }
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #101c1a 0%, #0a0a0a 100%);
    box-shadow: 0 -2px 24px 0 rgba(0,255,136,0.08);
    position: relative;
    overflow: hidden;
    border-top: 1.5px solid rgba(0,255,136,0.08);
}
.footer::before {
    content: '';
    position: absolute;
    top: -80px; left: 50%;
    width: 600px; height: 300px;
    background: radial-gradient(circle, rgba(0,255,136,0.12) 0%, transparent 80%);
    filter: blur(20px);
    transform: translateX(-50%);
    z-index: 0;
}
.footer-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding: 0 24px;
}
.footer-section {
    background: rgba(255,255,255,0.03);
    border-radius: 14px;
    box-shadow: 0 2px 12px 0 rgba(0,255,136,0.04);
    padding: 18px 14px 12px 14px;
    border: 1px solid rgba(0,255,136,0.06);
    transition: box-shadow 0.3s;
}
.footer-section:hover {
    box-shadow: 0 4px 24px 0 rgba(0,255,136,0.10);
}
.footer-section h3 {
    color: #00ff88;
    margin-bottom: 12px;
    font-size: 1.08rem;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0,255,136,0.08);
}
.footer-section p {
    color: #b8ffe0;
    line-height: 1.6;
    margin-bottom: 10px;
    font-size: 0.92rem;
    text-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 16px;
}
.footer-links li::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 6px; height: 6px;
    background: linear-gradient(135deg, #00ff88 60%, #00a1ff 100%);
    border-radius: 50%;
    transform: translateY(-50%);
    opacity: 0.7;
    transition: background 0.3s;
}
.footer-links li:hover::before {
    background: linear-gradient(135deg, #00ff88 0%, #fff 100%);
    opacity: 1;
}
.footer-links a {
    color: #b8ffe0;
    text-decoration: none;
    transition: color 0.3s, transform 0.3s;
    font-size: 0.92rem;
    position: relative;
    display: inline-block;
    border-radius: 4px;
    padding: 2px 4px;
}
.footer-links a:hover {
    color: #00ff88;
    background: rgba(0,255,136,0.08);
    transform: translateX(4px) scale(1.04);
}
.friend-links {
    margin-top: 10px;
}
.friend-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
.friend-link {
    display: ruby;
    align-items: center;
    gap: 10px;
    
    /* padding: 10px 12px; */
    background: rgba(0,255,136,0.06);
    border-radius: 10px;
    text-decoration: none;
    transition: box-shadow 0.3s, background 0.3s, transform 0.3s;
    /* border: 1px solid rgba(0,255,136,0.13); */
    box-shadow: 0 1px 6px 0 rgba(0,255,136,0.06);
}
.friend-link:hover {
    background: rgba(0,255,136,0.13);
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 16px 0 rgba(0,255,136,0.13);
    border-color: #00ff88;
}
.friend-link img, .friend-icon {
    width: 32px; height: 32px;
    border-radius: 50%;
    object-fit: cover;
    background: #0a0a0a;
    box-shadow: 0 2px 8px 0 rgba(0,255,136,0.10);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    border: 1.5px solid rgba(0,255,136,0.18);
    transition: border 0.3s, box-shadow 0.3s;
}
.friend-link:hover img, .friend-link:hover .friend-icon {
    border-color: #00ff88;
    box-shadow: 0 4px 16px 0 rgba(0,255,136,0.18);
}
.friend-link span {
    color: #b8ffe0;
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: color 0.3s;
}
.friend-link:hover span {
    color: #00ff88;
}
.social-links {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}
.social-link {
    color: #b8ffe0;
    text-decoration: none;
    padding: 8px 18px;
    border-radius: 22px;
    background: rgba(0,255,136,0.08);
    border: 1px solid rgba(0,255,136,0.13);
    transition: color 0.3s, background 0.3s, box-shadow 0.3s, transform 0.3s;
    font-size: 0.95rem;
    box-shadow: 0 1px 6px 0 rgba(0,255,136,0.06);
    font-weight: 500;
}
.social-link:hover {
    color: #00ff88;
    background: rgba(0,255,136,0.18);
    box-shadow: 0 4px 16px 0 rgba(0,255,136,0.13);
    transform: translateY(-2px) scale(1.04);
    border-color: #00ff88;
}
.footer-bottom {
    text-align: center;
    margin-top: 32px;
    color: #b8ffe0;
    font-size: 0.92rem;
    letter-spacing: 0.5px;
    border-top: 1px solid rgba(0,255,136,0.08);
    padding-top: 16px;
    background: linear-gradient(90deg, transparent 0%, rgba(0,255,136,0.04) 50%, transparent 100%);
    box-shadow: 0 -1px 8px 0 rgba(0,255,136,0.04);
}
.footer-bottom a {
    color: #00ff88;
    text-decoration: underline dotted;
    transition: color 0.3s;
}
.footer-bottom a:hover {
    color: #fff;
    text-decoration: underline;
}
@media (max-width: 900px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }
}
@media (max-width: 600px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 0 8px;
    }
    .footer-section {
        padding: 12px 6px 8px 6px;
    }
    .friend-links-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        font-size: 0.85rem;
        padding-top: 10px;
    }
}

/* 返回顶部按钮 - 现代化设计 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-full);
    color: var(--bg-primary);
    font-size: 20px;
    cursor: pointer;
    z-index: var(--z-fixed);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        var(--shadow-lg),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset,
        var(--shadow-glow);
    backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-to-top:hover {
    transform: translateY(-3px) scale(1.1);
    background: var(--secondary-gradient);
    box-shadow:
        var(--shadow-xl),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset,
        var(--shadow-glow-strong),
        0 0 40px rgba(0, 255, 136, 0.4);
    animation: backToTopPulse 0.6s ease-out;
}

.back-to-top:active {
    transform: translateY(-1px) scale(1.05);
    transition: var(--transition-fast);
}

.back-to-top i {
    transition: var(--transition-normal);
}

.back-to-top:hover i {
    transform: translateY(-2px);
    animation: arrowBounce 1s ease-in-out infinite;
}

@keyframes backToTopPulse {
    0% {
        transform: translateY(-3px) scale(1.1);
    }
    50% {
        transform: translateY(-5px) scale(1.15);
    }
    100% {
        transform: translateY(-3px) scale(1.1);
    }
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateY(-2px);
    }
    50% {
        transform: translateY(-6px);
    }
}

@keyframes floatingPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow:
            var(--shadow-lg),
            var(--shadow-glow),
            0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    }
    50% {
        transform: scale(1.05);
        box-shadow:
            var(--shadow-xl),
            var(--shadow-glow-strong),
            0 0 0 1px rgba(255, 255, 255, 0.2) inset,
            0 0 30px rgba(0, 255, 136, 0.4);
    }
}

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

/* 响应式返回顶部按钮 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 18px;
    }
}