/* 重置样式和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 深蓝色系 */
    --primary-color: #0F172A;
    --primary-light: #1E293B;
    --primary-dark: #020617;

    /* 强调色 - 蓝色渐变 */
    --accent-color: #3B82F6;
    --accent-light: #60A5FA;
    --accent-dark: #2563EB;

    /* 辅助色 */
    --secondary-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;

    /* 中性色 */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --text-white: #FFFFFF;

    /* 背景色 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-dark: #0F172A;
    --bg-light: #F1F5F9;

    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --gradient-accent: linear-gradient(135deg, #3B82F6 0%, #10B981 100%);

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

    /* 边框圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* 图标雪碧图配置 */
    --sprite-width: 512px;
    --sprite-height: 512px;
    --icon-size: 128px;
    --icon-gap: 0px;
    --radius-xl: 20px;

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* 字体 */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-secondary: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 通用按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

.btn-outline:hover {
    background: var(--accent-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.btn-product {
    background: var(--bg-primary);
    color: var(--accent-color);
    border: 1px solid var(--bg-light);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-product:hover {
    background: var(--accent-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-contact {
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-contact:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 24px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.logo a:hover,
.logo a:focus {
    transform: scale(1.05);
    color: var(--primary-color);
    text-decoration: none;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
}

.nav-menu a.active {
    color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    color: var(--text-white);
    padding: 140px 0 var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.label-text {
    background: rgba(59, 130, 246, 0.2);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.label-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-secondary);
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.hero-visual {
    position: relative;
}

.hero-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.3);
}

/* 炫酷粒子动画背景 */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    pointer-events: none;
    animation: float-particle 15s infinite linear;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) translateX(0) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(100px) scale(1);
        opacity: 0;
    }
}

.particle:nth-child(1) {
    width: 4px;
    height: 4px;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 12s;
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.8);
}

.particle:nth-child(2) {
    width: 6px;
    height: 6px;
    left: 30%;
    animation-delay: 2s;
    animation-duration: 15s;
    background: linear-gradient(45deg, #10b981, #34d399);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.8);
}

.particle:nth-child(3) {
    width: 3px;
    height: 3px;
    left: 50%;
    animation-delay: 4s;
    animation-duration: 18s;
    background: linear-gradient(45deg, #f59e0b, #fbbf24);
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.8);
}

.particle:nth-child(4) {
    width: 5px;
    height: 5px;
    left: 70%;
    animation-delay: 6s;
    animation-duration: 14s;
    background: linear-gradient(45deg, #ef4444, #f87171);
    box-shadow: 0 0 14px rgba(239, 68, 68, 0.8);
}

.particle:nth-child(5) {
    width: 7px;
    height: 7px;
    left: 90%;
    animation-delay: 8s;
    animation-duration: 16s;
    background: linear-gradient(45deg, #8b5cf6, #a78bfa);
    box-shadow: 0 0 18px rgba(139, 92, 246, 0.8);
}

/* 炫酷光效和霓虹灯效果 */
.neon-glow {
    position: relative;
    overflow: hidden;
}

.neon-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.4), transparent);
    animation: neon-sweep 3s infinite;
}

@keyframes neon-sweep {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

.hero-title .highlight {
    background: linear-gradient(45deg, #3b82f6, #10b981, #8b5cf6);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 3s ease-in-out infinite;
    text-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

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

/* 按钮霓虹灯效果 */
.btn-primary {
    position: relative;
    background: linear-gradient(45deg, #3b82f6, #2563eb);
    border: none;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4), 0 0 20px rgba(59, 130, 246, 0.3);
    background: linear-gradient(45deg, #2563eb, #3b82f6);
}

/* 标题霓虹效果 */
.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #10b981, #8b5cf6);
    transition: width 0.8s ease;
}

.section-title.animated::after {
    width: 100%;
}

/* 科技感边框效果 */
.tech-border {
    position: relative;
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(45deg, #3b82f6, #10b981, #8b5cf6) border-box;
}

.tech-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #3b82f6, #10b981, #8b5cf6, #3b82f6);
    background-size: 400% 400%;
    border-radius: inherit;
    z-index: -1;
    animation: border-glow 4s ease-in-out infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tech-border:hover::before {
    opacity: 1;
}

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

/* 脉冲光效 */
.pulse-glow {
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.8), 0 0 30px rgba(59, 130, 246, 0.4);
    }
}

/* 3D卡片悬浮效果 */
.card-3d {
    perspective: 1000px;
    transform-style: preserve-3d;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
}

.card-3d-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card-3d:hover .card-3d-inner {
    transform: rotateY(10deg) rotateX(-10deg);
}

.advantage-item {
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.320, 1);
    position: relative;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.4s ease;
    transform: translateZ(-20px);
}

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

.advantage-item:hover {
    transform: translateZ(30px) translateY(-10px) scale(1.02);
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.2),
        0 0 40px rgba(59, 130, 246, 0.2),
        0 0 60px rgba(16, 185, 129, 0.1);
}

.advantage-icon {
    transition: all 0.4s ease;
    transform-style: preserve-3d;
}

.advantage-item:hover .advantage-icon {
    transform: translateZ(40px) rotateY(360deg) scale(1.1);
}

.advantage-item:hover .advantage-icon .icon-bg {
    background: linear-gradient(135deg, #3b82f6, #10b981);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

/* 浮动卡片3D效果 */
.floating-card {
    transform-style: preserve-3d;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.320, 1);
    animation: float-card 6s ease-in-out infinite;
}

@keyframes float-card {
    0%, 100% {
        transform: translateY(0px) rotateX(0deg) rotateY(0deg);
    }
    25% {
        transform: translateY(-10px) rotateX(2deg) rotateY(2deg);
    }
    50% {
        transform: translateY(-5px) rotateX(-1deg) rotateY(-1deg);
    }
    75% {
        transform: translateY(-15px) rotateX(1deg) rotateY(-2deg);
    }
}

.floating-card:hover {
    animation-play-state: paused;
    transform: translateY(-20px) rotateX(5deg) rotateY(5deg) scale(1.05);
    box-shadow:
        0 40px 80px rgba(0, 0, 0, 0.3),
        0 0 50px rgba(59, 130, 246, 0.3);
}

.floating-card .card-icon {
    transition: all 0.5s ease;
}

.floating-card:hover .card-icon {
    transform: translateZ(30px) scale(1.2) rotateZ(10deg);
}

/* 产品卡片3D翻转效果 */
.product-card {
    transform-style: preserve-3d;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(45deg, #3b82f6, #10b981, #8b5cf6, #f59e0b);
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.6s ease;
    transform: translateZ(-10px);
    filter: blur(10px);
}

.product-card:hover::before {
    opacity: 0.7;
}

.product-card:hover {
    transform: translateZ(20px) translateY(-15px) rotateX(5deg);
    box-shadow:
        0 35px 70px rgba(0, 0, 0, 0.25),
        0 0 60px rgba(59, 130, 246, 0.2);
}

.product-card:hover .product-icon {
    transform: translateZ(25px) scale(1.1) rotateY(180deg);
}

/* 打字机文字动画效果 */
.typewriter {
    overflow: hidden;
    border-right: 3px solid #3b82f6;
    white-space: nowrap;
    animation: typing 4s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: #3b82f6; }
}

/* 渐进式文字显示 */
.fade-in-text {
    opacity: 0;
    animation: fade-in-up 1s ease-out forwards;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 逐字显示动画 */
.text-reveal {
    display: inline-block;
}

.text-reveal span {
    opacity: 0;
    display: inline-block;
    animation: text-reveal-char 0.5s ease-out forwards;
}

@keyframes text-reveal-char {
    from {
        opacity: 0;
        transform: translateY(20px) rotateX(90deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0deg);
    }
}

/* 光标闪烁效果 */
.cursor-blink {
    display: inline-block;
    width: 3px;
    height: 1.2em;
    background: linear-gradient(to bottom, #3b82f6, #10b981);
    margin-left: 2px;
    animation: cursor-blink 1s infinite;
}

@keyframes cursor-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 标题动画 */
.hero-title .title-line {
    display: block;
    opacity: 0;
    animation: title-slide-in 1s cubic-bezier(0.23, 1, 0.320, 1) forwards;
}

.hero-title .title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.hero-title .title-line:nth-child(2) {
    animation-delay: 0.6s;
}

@keyframes title-slide-in {
    from {
        opacity: 0;
        transform: translateX(-50px) rotateY(-90deg);
    }
    to {
        opacity: 1;
        transform: translateX(0) rotateY(0deg);
    }
}

/* 数字递增动画 */
.counter {
    display: inline-block;
}

.counter-value {
    display: inline-block;
}

/* 文字波浪效果 */
.wave-text {
    display: inline-block;
}

.wave-text span {
    display: inline-block;
    animation: wave-text 2s ease-in-out infinite;
}

.wave-text span:nth-child(1) { animation-delay: 0s; }
.wave-text span:nth-child(2) { animation-delay: 0.1s; }
.wave-text span:nth-child(3) { animation-delay: 0.2s; }
.wave-text span:nth-child(4) { animation-delay: 0.3s; }
.wave-text span:nth-child(5) { animation-delay: 0.4s; }

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

/* 霓虹文字效果 */
.neon-text {
    color: #fff;
    text-shadow:
        0 0 10px rgba(59, 130, 246, 0.8),
        0 0 20px rgba(59, 130, 246, 0.6),
        0 0 30px rgba(59, 130, 246, 0.4),
        0 0 40px rgba(59, 130, 246, 0.2);
    animation: neon-flicker 2s infinite alternate;
}

@keyframes neon-flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

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

.data-flow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #3b82f6, #10b981, #8b5cf6, transparent);
    animation: data-flow-stream 3s linear infinite;
}

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

/* 多层数据流 */
.multi-data-flow {
    position: relative;
}

.multi-data-flow::before,
.multi-data-flow::after {
    content: '';
    position: absolute;
    left: -100%;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #3b82f6, transparent);
}

.multi-data-flow::before {
    top: 30%;
    animation: data-flow-stream-1 4s linear infinite;
}

.multi-data-flow::after {
    top: 70%;
    animation: data-flow-stream-2 4s linear infinite 1s;
}

@keyframes data-flow-stream-1 {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes data-flow-stream-2 {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 代码雨效果 */
.code-rain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    opacity: 0.1;
}

.rain-column {
    position: absolute;
    top: -100%;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: #3b82f6;
    animation: code-fall linear infinite;
}

@keyframes code-fall {
    to { transform: translateY(calc(100vh + 100%)); }
}

/* 粒子连线效果 */
.particle-network {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.network-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(59, 130, 246, 0.6);
    border-radius: 50%;
}

.network-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.4), transparent);
    transform-origin: left center;
    animation: pulse-line 2s ease-in-out infinite;
}

@keyframes pulse-line {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

/* 全息投影效果 */
.hologram {
    position: relative;
    animation: hologram-flicker 0.1s infinite;
}

.hologram::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        0deg,
        transparent 30%,
        rgba(59, 130, 246, 0.1) 50%,
        transparent 70%
    );
    animation: hologram-scan 2s linear infinite;
}

@keyframes hologram-flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.95; }
}

@keyframes hologram-scan {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

/* 数据脉冲效果 */
.data-pulse {
    position: relative;
}

.data-pulse::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.4), transparent);
    transform: translate(-50%, -50%);
    animation: pulse-expand 2s ease-out infinite;
}

@keyframes pulse-expand {
    0% {
        width: 0;
        height: 0;
        opacity: 1;
    }
    100% {
        width: 100px;
        height: 100px;
        opacity: 0;
    }
}

/* 科技网格背景 */
.tech-grid {
    position: relative;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 10s linear infinite;
}

@keyframes grid-move {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

/* 炫酷加载和过渡动画 */
/* 页面加载动画 */

/* 滚动显示动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.320, 1);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* 缩放显示动画 */
.scale-reveal {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
}

.scale-reveal.active {
    opacity: 1;
    transform: scale(1);
}

/* 旋转显示动画 */
.rotate-reveal {
    opacity: 0;
    transform: rotateY(90deg) scale(0.8);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.320, 1);
    transform-style: preserve-3d;
}

.rotate-reveal.active {
    opacity: 1;
    transform: rotateY(0deg) scale(1);
}

/* 滑动动画 */
.slide-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.320, 1);
}

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

.slide-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.320, 1);
}

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

/* 磁性效果 */
.magnetic-btn {
    position: relative;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.320, 1);
}

.magnetic-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3), transparent);
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
    border-radius: 50%;
}

.magnetic-btn:hover::before {
    width: 100%;
    height: 100%;
}

/* 故障效果 */
.glitch {
    position: relative;
    color: #3b82f6;
    animation: glitch-skew 1s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    animation: glitch-1 0.5s infinite linear alternate-reverse;
    color: #10b981;
    z-index: -1;
}

.glitch::after {
    animation: glitch-2 0.5s infinite linear alternate-reverse;
    color: #8b5cf6;
    z-index: -2;
}

@keyframes glitch-1 {
    0% { clip-path: inset(0 0 0 0); }
    20% { clip-path: inset(20% 0 30% 0); }
    40% { clip-path: inset(50% 0 20% 0); }
    60% { clip-path: inset(10% 0 60% 0); }
    80% { clip-path: inset(80% 0 5% 0); }
    100% { clip-path: inset(0 0 0 0); }
}

@keyframes glitch-2 {
    0% { clip-path: inset(0 0 0 0); }
    20% { clip-path: inset(60% 0 10% 0); }
    40% { clip-path: inset(20% 0 50% 0); }
    60% { clip-path: inset(30% 0 40% 0); }
    80% { clip-path: inset(5% 0 80% 0); }
    100% { clip-path: inset(0 0 0 0); }
}

@keyframes glitch-skew {
    0% { transform: skew(0deg); }
    20% { transform: skew(-2deg); }
    40% { transform: skew(1deg); }
    60% { transform: skew(-1deg); }
    80% { transform: skew(2deg); }
    100% { transform: skew(0deg); }
}

/* 进度条动画 */
.progress-bar {
    position: relative;
    height: 4px;
    background: rgba(59, 130, 246, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #10b981, #8b5cf6);
    border-radius: 2px;
    animation: progress-fill 2s ease-out forwards;
}

@keyframes progress-fill {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* 悬浮扫描效果 */
.scan-effect {
    position: relative;
    overflow: hidden;
}

.scan-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(59, 130, 246, 0.2),
        rgba(16, 185, 129, 0.2),
        transparent
    );
    animation: scan-sweep 3s ease-in-out infinite;
}

@keyframes scan-sweep {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

/* 能量球效果 */
.energy-orb {
    position: relative;
    display: inline-block;
}

.energy-orb::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, #3b82f6, transparent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: energy-pulse 2s ease-in-out infinite;
}

@keyframes energy-pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.2;
    }
}

.hero-banner-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.hero-image:hover .hero-banner-image {
    transform: scale(1.05);
}

.hero-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
}

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

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: float-card 3s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 50%;
    right: -5%;
    animation-delay: 1s;
}

.floating-card.card-3 {
    bottom: 20%;
    right: -15%;
    animation-delay: 2s;
}

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

.card-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
}

.card-title {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.card-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-color);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    animation: bounce 2s infinite;
}

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

.scroll-text {
    font-size: 14px;
    margin-bottom: var(--spacing-xs);
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin: 0 auto;
}

/* 通用区块样式 */
section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.bg-pattern {
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 25% 25%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
}

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

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-secondary);
    position: relative;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: var(--spacing-lg) auto 0;
}

/* 核心优势 */
.advantages {
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.advantage-item {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(226, 232, 240, 0.5);
    position: relative;
    overflow: hidden;
}

.advantage-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.advantage-item:hover:before {
    transform: scaleX(1);
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.advantage-item.featured {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(255, 255, 255, 1) 100%);
    border: 2px solid var(--accent-color);
    position: relative;
}

.advantage-item.featured:before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px 2px 0 0;
}

.advantage-item.featured .icon-bg {
    background: var(--gradient-accent);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.advantage-icon {
    margin-bottom: var(--spacing-md);
}

.icon-bg {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: var(--text-white);
    font-size: 32px;
    transition: all 0.3s ease;
}

.advantage-item:hover .icon-bg {
    transform: scale(1.1);
    box-shadow: 0 12px 24px rgba(59, 130, 246, 0.3);
}

.advantage-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 产品服务 */
.products {
    background: var(--bg-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.product-card {
    background: var(--bg-primary);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.product-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card:hover:before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
    border-color: transparent;
}

.product-card.premium {
    border: 2px solid var(--accent-color);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, rgba(255, 255, 255, 1) 100%);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.product-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 24px;
    transition: all 0.3s ease;
}

.product-card:hover .product-icon {
    transform: scale(1.1) rotate(5deg);
}

.product-badge {
    background: var(--gradient-accent);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.product-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.product-desc {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.product-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-size: 14px;
}

.product-features i {
    color: var(--secondary-color);
    font-size: 16px;
}

/* 解决方案 */
.solutions {
    background: var(--bg-secondary);
}

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

.solution-tabs {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.tab-nav {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--bg-light);
    padding-bottom: var(--spacing-sm);
}

.tab-item {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.tab-item:after {
    content: '';
    position: absolute;
    bottom: -17px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.tab-item.active {
    color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
}

.tab-item.active:after {
    width: 100%;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

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

.tab-pane h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.tab-pane p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.solution-features {
    display: grid;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.feature-item i {
    color: var(--accent-color);
    font-size: 18px;
}

.visual-content {
    position: relative;
}

.visual-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
}

.visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.visual-stats {
    display: grid;
    gap: var(--spacing-md);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 20px;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 成功案例 */
.cases {
    background: var(--bg-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.case-item {
    background: var(--bg-primary);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.case-item.featured {
    border: 2px solid var(--accent-color);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, rgba(255, 255, 255, 1) 100%);
}

.case-item.featured .case-placeholder {
    background: var(--gradient-accent);
    color: var(--text-white);
}

.case-item.featured:hover {
    transform: translateY(-12px);
    box-shadow: 0 32px 64px rgba(59, 130, 246, 0.2);
}

.case-image {
    height: 200px;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-placeholder {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.8);
}

.case-image-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-content {
    padding: var(--spacing-lg);
}

.case-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.case-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.case-tags {
    display: flex;
    gap: var(--spacing-xs);
}

.tag {
    background: var(--bg-light);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

/* 关于我们 */
.about {
    background: var(--bg-secondary);
}

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

.about-intro h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.about-intro p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.about-values {
    display: grid;
    gap: var(--spacing-lg);
}

.value-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
}

.value-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 20px;
    flex-shrink: 0;
}

.value-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.value-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-stats {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stats-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.stat-box {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    transition: all 0.3s ease;
}

.stat-box:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.stat-box .stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
}

.stat-box .stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 图片占位符样式 */
.hero-banner-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-banner-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    padding: var(--spacing-lg);
}

.banner-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.banner-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.banner-content p {
    font-size: 16px;
    opacity: 0.8;
}

.solutions-banner-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.solutions-banner-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    transition: transform 0.5s ease;
}

.visual-image:hover .solutions-banner-image {
    transform: scale(1.05);
}

.solutions-banner-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

/* 新闻中心 */
/* 新闻资讯样式已移除 */

/* 联系我们 */
.contact {
    background: var(--bg-secondary);
}

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

.contact-info {
    display: grid;
    gap: var(--spacing-md);
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 24px;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--text-secondary);
    font-size: 14px;
}

.contact-form {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    background: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 0;
}

.footer-top {
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 24px;
    font-weight: 700;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-white);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--text-white);
}

.footer-bottom {
    padding: var(--spacing-lg) 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright p,
.footer-links {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--text-white);
}

.footer-links span {
    margin: 0 var(--spacing-sm);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.4);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .hero-title {
        font-size: 48px;
    }

    .solutions-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav-menu,
    .btn-contact {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 var(--spacing-xl);
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 32px;
    }

    .advantages-grid,
    .products-grid,
    .cases-grid,
    /* 移动端新闻样式已移除 */

    .form-row {
        grid-template-columns: 1fr;
    }

    .tab-nav {
        flex-direction: column;
    }

    .floating-cards {
        display: none;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 28px;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

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

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dark);
}

/* 选择文本样式 */
::selection {
    background: var(--accent-color);
    color: var(--text-white);
}

/* 移动端菜单样式 */
.nav-menu.active {
    display: block;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
}

.nav-menu.active ul {
    flex-direction: column;
    gap: var(--spacing-md);
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

/* 图标雪碧图样式 */
.icon-sprite {
    background-image: url('../img/icons-sprite.png');
    background-repeat: no-repeat;
    display: inline-block;
    width: var(--icon-size);
    height: var(--icon-size);
    background-size: var(--sprite-width) var(--sprite-height);
}

/* 图标位置定义 - 4x4网格 */
.icon-customs { background-position: 0 0; }                    /* 海关文档 */
.icon-container { background-position: -128px 0; }             /* 集装箱 */
.icon-forklift { background-position: -256px 0; }              /* 叉车 */
.icon-warehouse { background-position: -384px 0; }             /* 仓库 */
.icon-globe { background-position: 0 -128px; }                 /* 地球 */
.icon-shield { background-position: -128px -128px; }           /* 盾牌 */
.icon-chart { background-position: -256px -128px; }            /* 图表 */
.icon-gears { background-position: -384px -128px; }            /* 齿轮 */
.icon-truck { background-position: 0 -256px; }                 /* 卡车 */
.icon-package { background-position: -128px -256px; }          /* 包裹 */
.icon-barcode { background-position: -256px -256px; }          /* 条形码 */
.icon-database { background-position: -384px -256px; }         /* 数据库 */
.icon-cloud { background-position: 0 -384px; }                 /* 云 */
.icon-mobile { background-position: -128px -384px; }           /* 手机 */
.icon-clipboard { background-position: -256px -384px; }        /* 剪贴板 */
.icon-calculator { background-position: -384px -384px; }       /* 计算器 */

/* 图标大小变体 */
.icon-sprite.small {
    width: 32px;
    height: 32px;
    background-size: 128px 128px;
}

.icon-sprite.large {
    width: 96px;
    height: 96px;
    background-size: 384px 384px;
}

/* 小图标位置调整 - 基于新的128px图标尺寸 */
.icon-sprite.small.icon-customs { background-position: 0 0; }
.icon-sprite.small.icon-container { background-position: -32px 0; }
.icon-sprite.small.icon-forklift { background-position: -64px 0; }
.icon-sprite.small.icon-warehouse { background-position: -96px 0; }
.icon-sprite.small.icon-globe { background-position: 0 -32px; }
.icon-sprite.small.icon-shield { background-position: -32px -32px; }
.icon-sprite.small.icon-chart { background-position: -64px -32px; }
.icon-sprite.small.icon-gears { background-position: -96px -32px; }
.icon-sprite.small.icon-truck { background-position: 0 -64px; }
.icon-sprite.small.icon-package { background-position: -32px -64px; }
.icon-sprite.small.icon-barcode { background-position: -64px -64px; }
.icon-sprite.small.icon-database { background-position: -96px -64px; }
.icon-sprite.small.icon-cloud { background-position: 0 -96px; }
.icon-sprite.small.icon-mobile { background-position: -32px -96px; }
.icon-sprite.small.icon-clipboard { background-position: -64px -96px; }
.icon-sprite.small.icon-calculator { background-position: -96px -96px; }

/* 产品特性图标样式 */
.feature-icon {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.feature-icon .icon-sprite {
    flex-shrink: 0;
}

/* 统计数据图标样式 */
.stat-icon-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 16px;
}

.stat-icon-custom .icon-sprite {
    filter: brightness(0) invert(1);
}