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

:root {
    /* 主题颜色 */
    --primary-color: #3b82f6;
    --primary-color-rgb: 59, 130, 246;
    --primary-color-dark: #2563eb;
    --secondary-color: #6366f1;
    --accent-color: #8b5cf6;

    /* 背景颜色 */
    --bg-color: #ffffff;
    --nav-bg-color: rgba(255, 255, 255, 0.9);

    /* 文本颜色 */
    --text-color: #1e293b;
    --text-color-light: #64748b;
    --heading-color: #0f172a;

    /* 边框和阴影 */
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* 渐变颜色 */
    --gradient-start: #3b82f6;
    --gradient-end: #8b5cf6;

    /* 页脚颜色 */
    --footer-text: #64748b;
    --footer-link: #94a3b8;
    --footer-link-hover: #3b82f6;

    --card-bg-color: #ffffff;
    --hero-overlay: rgba(30, 64, 175, 0.95);
    --footer-bg: #f8fafc;
    --card-hover-shadow: rgba(0, 0, 0, 0.15);
    --contact-section-bg: #1e293b;
    --contact-card-bg: rgba(30, 41, 59, 0.8);
    --contact-text-color: #e2e8f0;
    --contact-info-bg: rgba(30, 41, 59, 0.6);
    --contact-item-bg: rgba(51, 65, 85, 0.4);
    --contact-item-hover-bg: rgba(51, 65, 85, 0.6);
    --contact-item-border: rgba(96, 165, 250, 0.2);
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #60a5fa;
        --secondary-color: #3b82f6;
        --accent-color: #2563eb;
        --text-color: #f1f5f9;
        --bg-color: #0f172a;
        --card-bg-color: #1e293b;
        --nav-bg-color: rgba(15, 23, 42, 0.98);
        --shadow-color: rgba(0, 0, 0, 0.3);
        --gradient-start: #60a5fa;
        --gradient-end: #3b82f6;
        --border-color: #334155;
        --hero-overlay: rgba(15, 23, 42, 0.95);
        --footer-bg: #1e293b;
        --card-hover-shadow: rgba(0, 0, 0, 0.4);
        --contact-section-bg: #0f172a;
        --contact-card-bg: #1e293b;
        --contact-text-color: #f8fafc;
        --contact-info-bg: rgba(30, 41, 59, 0.6);
        --contact-item-bg: rgba(51, 65, 85, 0.4);
        --contact-item-hover-bg: rgba(51, 65, 85, 0.6);
        --contact-item-border: rgba(96, 165, 250, 0.2);
    }

    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }

    nav {
        background-color: var(--nav-bg-color);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        box-shadow: 0 2px 15px var(--shadow-color);
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1000;
        transition: all 0.3s ease;
    }

    .nav-links {
        background-color: var(--nav-bg-color);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        box-shadow: 0 2px 15px var(--shadow-color);
    }

    .nav-links a {
        color: var(--text-color);
    }

    .nav-links a:hover,
    .nav-links a:active,
    .nav-links a.active {
        background-color: rgba(96, 165, 250, 0.1);
        color: var(--primary-color);
    }

    .feature-card,
    .case-card,
    .contact-card,
    .service-card {
        background-color: var(--card-bg-color);
        border-color: var(--border-color);
    }

    .feature-card:hover,
    .case-card:hover,
    .contact-card:hover,
    .service-card:hover {
        box-shadow: 0 8px 30px var(--card-hover-shadow);
    }

    .case-card {
        background: var(--case-card-bg);
    }

    .case-content h3 {
        color: var(--case-text);
    }

    .case-content p {
        color: var(--case-text);
        opacity: 0.85;
    }

    .case-tag {
        background: var(--case-tag-bg);
        color: var(--case-text);
    }

    .contact-section {
        background: var(--contact-section-bg);
    }

    .contact-card {
        background: var(--contact-card-bg);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border-radius: 20px;
        padding: 2.5rem;
        text-align: center;
        transition: all 0.3s ease;
        border: 1px solid var(--border-color);
        overflow: hidden;
    }

    .contact-card:hover {
        transform: translateY(-5px);
        background: rgba(30, 41, 59, 0.9);
        border-color: var(--primary-color);
    }

    .contact-icon {
        background: rgba(96, 165, 250, 0.1);
    }

    .contact-icon i {
        color: var(--primary-color);
    }

    footer {
        background: var(--nav-bg-color);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        box-shadow: 0 -2px 15px var(--shadow-color);
        color: var(--footer-text);
        padding: 3rem 0;
        position: relative;
        overflow: hidden;
        text-align: center;
    }

    footer::before {
        opacity: 0.1;
    }

    .footer-content {
        border-bottom-color: var(--footer-border);
    }

    .footer-column h4 {
        color: var(--footer-text);
    }

    .footer-links a {
        color: var(--footer-link);
    }

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

    .footer-bottom {
        text-align: center;
        padding-top: 2rem;
        margin-top: 2rem;
        border-top: 1px solid var(--border-color);
        position: relative;
        background: var(--nav-bg-color);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }

    .footer-bottom p {
        color: var(--footer-text);
    }

    .cta-button.primary {
        background: var(--card-bg-color);
        color: var(--primary-color);
    }

    .cta-button.secondary {
        border-color: var(--border-color);
        color: var(--text-color);
    }

    img {
        filter: brightness(0.95);
    }

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

    ::-webkit-scrollbar-thumb {
        background: var(--border-color);
        border: 3px solid var(--bg-color);
    }

    ::-webkit-scrollbar-thumb:hover {
        background: var(--primary-color);
    }

    ::selection {
        background: var(--primary-color);
        color: var(--bg-color);
    }

    .feature-icon {
        background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    }

    .hero::before {
        background-color: var(--hero-overlay);
    }

    @media (max-width: 768px) {
        .nav-links {
            background-color: var(--nav-bg-color);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 15px var(--shadow-color);
        }

        .nav-links a {
            color: var(--text-color);
            border: 1px solid var(--border-color);
            background-color: var(--card-bg-color);
        }

        .nav-links a:hover,
        .nav-links a:active,
        .nav-links a.active {
            background-color: var(--primary-color);
            color: var(--bg-color);
            border-color: var(--primary-color);
        }
    }

    .service-item {
        background: var(--card-bg-color);
    }

    .service-item h3 {
        color: var(--primary-color);
    }

    .service-item p,
    .service-item li {
        color: var(--text-color);
    }

    .team-advantage {
        background: var(--card-bg-color);
    }

    .team-advantage h3 {
        color: var(--primary-color);
    }

    .team-advantage li {
        color: var(--text-color);
    }

    .culture-item {
        background: var(--card-bg-color);
    }

    .culture-item h3 {
        color: var(--primary-color);
    }

    .culture-item p {
        color: var(--text-color);
    }

    .back-to-top {
        background: var(--primary-color);
        color: var(--bg-color);
    }

    .back-to-top:hover {
        background: var(--secondary-color);
    }

    .qr-image {
        filter: brightness(1.1);
        background-color: white;
        padding: 8px;
        border-radius: 8px;
    }

    .contact-card {
        background: var(--contact-card-bg);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border: 1px solid var(--border-color);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .contact-card:hover {
        border-color: var(--primary-color);
        box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    }

    .info-content h3 {
        color: var(--primary-color);
    }

    .info-content p {
        color: var(--contact-text-color);
    }

    .contact-info-card {
        background: var(--contact-card-bg);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border: 1px solid var(--border-color);
    }

    .info-item {
        background: var(--contact-item-bg);
        border: 1px solid var(--contact-item-border);
    }

    .info-item:hover {
        background: var(--contact-item-hover-bg);
        border-color: var(--primary-color);
    }

    .info-item i {
        background: var(--contact-card-bg);
        color: var(--primary-color);
    }

    .info-item:hover i {
        background: var(--contact-item-hover-bg);
        color: var(--primary-color);
    }

    .contact-main {
        background: var(--contact-section-bg);
    }
}

body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    width: min(1200px, 100% - 40px);
    margin-inline: auto;
}

/* 导航栏样式 */
nav {
    background-color: var(--nav-bg-color);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 15px var(--shadow-color);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

/* Logo样式 */
.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 2px;
}

.logo-text {
    font-size: clamp(20px, 5vw, 28px);
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 3px;
    text-shadow: 2px 2px 4px var(--shadow-color);
    transition: all 0.3s ease;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    border-radius: 50%;
    margin-top: -20px;
    box-shadow: 0 2px 4px rgba(255, 107, 107, 0.3);
    animation: pulse 2s infinite;
    will-change: transform;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

/* 导航链接 */
.nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 80%;
}

/* 确保所有图标颜色统一 */
.nav-links a i {
    font-size: 18px;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.nav-links a:hover i,
.nav-links a:focus i,
.nav-links a.active i {
    color: var(--primary-color);
    transform: scale(1.1);
}

/* 汉堡菜单按钮样式 */
.menu-toggle {
    display: none;
    padding: 10px;
    cursor: pointer;
    border: none;
    background: transparent;
    z-index: 1001;
}

.menu-toggle:focus {
    outline: 2px solid var(--primary-color);
    border-radius: 4px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* 解决方案头部样式 */
.solution-header {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: white;
    text-align: center;
    padding: 120px 0 60px;
    margin-bottom: 40px;
}

.solution-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 20px;
    font-weight: 700;
}

.solution-header p {
    font-size: clamp(16px, 3vw, 20px);
    opacity: 0.9;
}

/* 解决方案展示样式优化 */
.solutions {
    padding: 40px 0 80px;
    background-color: var(--bg-color);
}

.solution-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    align-items: center;
    background: var(--card-bg-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

.solution-item.reverse {
    grid-template-columns: 1fr 1fr;
    direction: rtl;
}

.solution-item.reverse .solution-content {
    direction: ltr;
}

.solution-content {
    padding: 2rem;
}

.solution-content h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 700;
}

.solution-features {
    display: grid;
    gap: 1.5rem;
}

.feature {
    background: color-mix(in srgb, var(--primary-color) 5%, transparent);
    padding: 1.5rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid color-mix(in srgb, var(--primary-color) 10%, transparent);
}

.feature:hover {
    transform: translateY(-5px);
    background: color-mix(in srgb, var(--primary-color) 8%, transparent);
    border-color: color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.feature h3 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    font-size: 20px;
    font-weight: 600;
}

.feature p {
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
}

.solution-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: transform 0.3s ease;
}

.solution-image img:hover {
    transform: scale(1.02);
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    .solution-header {
        padding: 100px 0 40px;
    }

    .solution-item,
    .solution-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
        padding: 1.5rem;
        margin-bottom: 3rem;
    }

    .solution-content {
        padding: 1rem 0;
    }

    .solution-features {
        grid-template-columns: 1fr;
    }

    .feature {
        padding: 1.2rem;
    }
}

@media (max-width: 480px) {
    .solution-header {
        padding: 80px 0 30px;
    }

    .solution-item {
        padding: 1rem;
        margin-bottom: 2rem;
    }

    .feature {
        padding: 1rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: fixed;
        inset: 60px 0 0 0;
        background-color: var(--nav-bg-color);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 10px var(--shadow-color);
        height: 100vh;
        z-index: 1000;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        width: 100%;
        justify-content: center;
        padding: 1rem;
        font-size: 18px;
        border-radius: 8px;
        margin: 0.25rem 0;
        background-color: var(--card-bg-color);
        transition: all 0.3s ease;
        border: 1px solid var(--border-color);
    }

    .nav-links a:hover,
    .nav-links a:active,
    .nav-links a.active {
        background-color: var(--primary-color);
        color: var(--bg-color);
        border-color: var(--primary-color);
    }

    .nav-links a::after {
        display: none;
    }

    .solution-item,
    .solution-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .solution-content {
        padding: 1rem 0;
    }
}

@media (max-width: 480px) {
    nav .container {
        height: 60px;
    }

    .solution-features {
        grid-template-columns: 1fr;
    }
}

/* 可访问性增强 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 焦点样式 */
:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* 首页样式 */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 120px 0 60px;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.95), rgba(59, 130, 246, 0.95));
    color: var(--text-color);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    animation: backgroundMove 20s linear infinite;
    opacity: 0.3;
}

@keyframes backgroundMove {
    from {
        transform: translateX(0) translateY(0);
    }

    to {
        transform: translateX(-100px) translateY(-100px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    color: white;
    text-align: center;
    padding: 0 20px;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.6;
    animation: fadeInUp 1s ease 0.2s backwards;
}

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

.cta-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* 按钮图标样式统一 */
.cta-button i {
    color: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.cta-button:hover i {
    transform: scale(1.1);
}

.cta-button.primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 特色内容区域 */
.features {
    padding: 100px 0;
    background-color: var(--bg-color);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom right, var(--gradient-start), var(--gradient-end));
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 0);
    opacity: 0.1;
}

.section-header {
    text-align: center;

    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.section-header h2 {
    font-size: clamp(2rem, 3vw, 2.5rem);
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-color);
    opacity: 0.8;
    max-width: 600px;
    margin: 1.5rem auto 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: var(--card-bg-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
    will-change: transform;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.2), rgba(130, 196, 248, 0.2));
}

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

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    width: 100%;
    margin-top: auto;
}

.feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.8rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    color: var(--primary-color);
    margin-right: 0.8rem;
    font-weight: bold;
}

@media (max-width: 768px) {
    .features {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 3rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-card {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .feature-card {
        padding: 1.5rem;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
    }

    .feature-icon i {
        font-size: 1.5rem;
    }
}

/* 客户案例优化 */
.cases {
    padding: 100px 0;
    background: linear-gradient(to bottom, var(--bg-color) 0%, rgba(237, 242, 247, 0.5) 100%);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.case-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: all 0.3s ease;
    position: relative;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.case-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-card:hover .case-image::before {
    opacity: 1;
}

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

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

.case-content {
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.case-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    font-weight: 700;
}

.case-content p {
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.case-tags {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.case-tag {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* 联系部分优化 */
.contact-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    opacity: 0.1;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    position: relative;
    background: var(--contact-card-bg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.contact-card:hover {
    transform: translateY(-5px);
    background: rgba(30, 41, 59, 0.9);
    border-color: var(--primary-color);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.contact-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    z-index: -1;
}

.contact-icon i {
    font-size: 2rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
    z-index: 2;
}

.contact-card:hover .contact-icon {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.contact-card:hover .contact-icon::before {
    background: rgba(255, 255, 255, 0.25);
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.contact-card p {
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }

    .contact-card {
        padding: 2rem;
    }

    .contact-icon {
        width: 70px;
        height: 70px;
    }

    .contact-icon i {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .contact-card {
        padding: 1.75rem;
    }

    .contact-icon {
        width: 60px;
        height: 60px;
    }

    .contact-icon i {
        font-size: 1.5rem;
    }
}

/* 页脚样式 */
footer {
    background: var(--nav-bg-color);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 -2px 15px var(--shadow-color);
    color: var(--footer-text);
    padding: 3rem 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

/* 页脚顶部装饰线 */
footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
            transparent,
            var(--primary-color),
            var(--secondary-color),
            var(--primary-color),
            transparent);
    opacity: 0.3;
}

/* 页脚内容网格布局 */
.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    padding: 0 20px;
    margin-bottom: 3rem;
}

/* 页脚列标题 */
.footer-column h4 {
    color: var(--footer-text);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 0.75rem;
}

/* 页脚列标题装饰线 */
.footer-column h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* 页脚链接列表 */
.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* 页脚链接项 */
.footer-links li {
    transition: transform 0.3s ease;
}

.footer-links li:hover {
    transform: translateX(5px);
}

/* 页脚链接样式 */
.footer-links a {
    color: var(--footer-link);
    text-decoration: none;
    transition: all 0.3s ease;
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--footer-link-hover);
    opacity: 1;
}

/* 页脚链接图标 */
.footer-links a i {
    font-size: 1rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.footer-links a:hover i {
    transform: translateX(3px);
}

/* 页脚底部版权信息 */
.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    position: relative;
    background: var(--nav-bg-color);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

/* 页脚底部文本 */
.footer-bottom p {
    color: var(--footer-text);
    opacity: 0.8;
    font-size: 0.9rem;
}

/* 页脚公司简介 */
.footer-about {
    margin-right: 2rem;
}

.footer-about p {
    color: var(--footer-text);
    opacity: 0.8;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

/* 页脚社交媒体图标 */
.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(96, 165, 250, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-social a i {
    color: var(--primary-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.footer-social a:hover i {
    color: white;
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .footer-about {
        grid-column: 1 / -1;
        margin-right: 0;
    }
}

@media (max-width: 768px) {
    footer {
        padding: 3rem 0 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-column h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-links {
        align-items: center;
    }

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

    .footer-links li:hover {
        transform: translateY(-2px);
    }
}

@media (max-width: 480px) {
    footer {
        padding: 2rem 0 1rem;
    }

    .footer-content {
        gap: 1.5rem;
    }

    .footer-column h4 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .footer-links {
        gap: 0.5rem;
    }

    .footer-bottom p {
        font-size: 0.8rem;
    }
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero {
        padding: 100px 0 40px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
    }

    .features-grid,
    .cases-grid,
    .contact-cards {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 30px;
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .feature-card,
    .case-card,
    .contact-card {
        padding: 1.5rem;
    }
}

/* 联系页面样式 */
.contact-header {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: white;
    padding: 120px 0 60px;
    text-align: center;
    margin-bottom: 60px;
}

.contact-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.contact-header p {
    font-size: clamp(16px, 3vw, 20px);
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 联系信息主体样式 */
.contact-main {
    padding: 60px 0;
    background-color: var(--bg-color);
    position: relative;
}

.contact-info-card {
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px var(--shadow-color);
    max-width: 800px;
    margin: 0 auto;
    transform: translateY(-40px);
    position: relative;
    overflow: hidden;
}

.contact-info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.contact-info-card h2 {
    color: var(--primary-color);
    font-size: 28px;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.contact-info-card h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 3px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    margin: 15px 0;
    border-radius: 12px;
    background: color-mix(in srgb, var(--bg-color) 97%, var(--primary-color));
    transition: all 0.3s ease;
    border: 1px solid color-mix(in srgb, var(--primary-color) 10%, transparent);
}

.info-item:hover {
    transform: translateY(-5px);
    background: color-mix(in srgb, var(--bg-color) 95%, var(--primary-color));
    box-shadow: 0 5px 15px var(--shadow-color);
    border-color: color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.info-item i {
    font-size: 24px;
    color: var(--primary-color);
    background: white;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-right: 20px;
    box-shadow: 0 4px 10px var(--shadow-color);
    transition: all 0.3s ease;
}

.info-item:hover i {
    transform: scale(1.1);
    color: var(--secondary-color);
    background: color-mix(in srgb, var(--primary-color) 5%, white);
}

.info-content {
    flex: 1;
}

.info-content h3 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 5px;
    font-weight: 600;
}

.info-content p {
    font-size: 16px;
    color: var(--text-color);
    opacity: 0.8;
    margin: 0;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .contact-info-card {
        padding: 30px 20px;
        margin: 0 20px;
        transform: translateY(-30px);
    }

    .info-item {
        padding: 15px;
    }

    .info-item i {
        width: 40px;
        height: 40px;
        font-size: 20px;
        margin-right: 15px;
    }
}

@media (max-width: 480px) {
    .contact-header {
        padding: 100px 0 40px;
    }

    .contact-info-card {
        padding: 20px 15px;
        transform: translateY(-20px);
    }

    .info-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .info-item i {
        margin: 0 0 15px 0;
    }

    .info-content h3 {
        font-size: 16px;
    }

    .info-content p {
        font-size: 14px;
    }
}

/* 关于我们头部样式 */
.about-header {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: white;
    padding: 120px 0 60px;
    text-align: center;
    margin-bottom: 60px;
}

.about-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.about-header p {
    font-size: clamp(16px, 3vw, 20px);
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 公司简介样式 */
.company-intro {
    padding: 60px 0;
    background-color: color-mix(in srgb, var(--primary-color) 5%, transparent);
}

.company-intro .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.intro-content h2 {
    color: var(--primary-color);
    font-size: clamp(24px, 4vw, 32px);
    margin-bottom: 30px;
    position: relative;
}

.intro-content h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin-top: 15px;
    border-radius: 2px;
}

.intro-content p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--shadow-color);
    transition: transform 0.3s ease;
}

.intro-image img:hover {
    transform: translateY(-10px);
}

/* 企业文化样式 */
.culture {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.culture h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: clamp(24px, 4vw, 32px);
    margin-bottom: 50px;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.culture-item {
    background: var(--bg-color);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 16px var(--shadow-color);
    transition: transform 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-10px);
}

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.culture-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.culture-item h3 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 15px;
}

.culture-item p {
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
}

/* 团队优势样式 */
.team {
    padding: 80px 0;
    background-color: color-mix(in srgb, var(--primary-color) 5%, transparent);
}

.team h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: clamp(24px, 4vw, 32px);
    margin-bottom: 50px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.team-advantage {
    background: var(--bg-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow-color);
    transition: all 0.3s ease;
}

.team-advantage:hover {
    transform: translateY(-10px);
}

.team-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

.team-advantage h3 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 20px;
}

.team-advantage ul {
    list-style: none;
    padding: 0;
}

.team-advantage li {
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
}

.team-advantage li::before {
    content: '•';
    color: var(--accent-color);
    font-size: 24px;
    position: absolute;
    left: 0;
    top: -4px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .company-intro .container {
        grid-template-columns: 1fr;
    }

    .intro-content {
        order: 2;
    }

    .intro-image {
        order: 1;
    }

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

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

/* 服务页面样式 */
.service-header {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: white;
    text-align: center;
    padding: 120px 0 60px;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.service-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    opacity: 0.1;
    animation: backgroundMove 20s linear infinite;
}

.service-header h1 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.service-header p {
    font-size: clamp(16px, 3vw, 20px);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.service-details {
    padding: 40px 0 80px;
}

.service-details .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #64b5f6);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--primary-color) 10%, transparent);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.service-icon img {
    width: 40px;
    height: 40px;
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    background: color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.service-card h2 {
    color: var(--text-color);
    font-size: 24px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
    width: 100%;
}

.feature-list li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-color);
}

.feature-list li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

.service-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: auto;
}

.service-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow-color);
}

/* 服务优势样式 */
.service-advantages {
    background: color-mix(in srgb, var(--primary-color) 5%, var(--bg-color));
    padding: 80px 0;
}

.service-advantages h2 {
    text-align: center;
    font-size: clamp(28px, 4vw, 36px);
    margin-bottom: 3rem;
    color: var(--text-color);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-item {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
}

.advantage-item h3 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 1rem;
}

.advantage-item p {
    color: var(--text-color);
    opacity: 0.9;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .service-details .container {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .service-header {
        padding: 100px 0 40px;
    }

    .service-icon {
        width: 60px;
        height: 60px;
    }

    .service-icon img {
        width: 30px;
        height: 30px;
    }

    .feature-list li {
        font-size: 14px;
    }
}

/* AI定制开发页面样式 */
.service-intro {
    padding: 60px 0;
    background: color-mix(in srgb, var(--primary-color) 5%, var(--bg-color));
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--bg-color);
    border-radius: 16px;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.intro-content h2 {
    color: var(--primary-color);
    font-size: clamp(24px, 4vw, 32px);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.intro-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.intro-content p {
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.8;
}

/* 核心服务样式 */
.core-services {
    padding: 80px 0;
    background: var(--bg-color);
}

.core-services h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: clamp(24px, 4vw, 36px);
    margin-bottom: 3rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-item {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

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

.service-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    background: color-mix(in srgb, var(--primary-color) 10%, transparent);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.service-item:hover i {
    transform: scale(1.1);
    background: color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.service-item h3 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 1.5rem;
}

.service-item ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.service-item ul li {
    color: var(--text-color);
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.service-item ul li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

/* 开发流程样式 */
.development-process {
    padding: 80px 0;
    background: color-mix(in srgb, var(--primary-color) 5%, var(--bg-color));
}

.development-process h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: clamp(24px, 4vw, 36px);
    margin-bottom: 3rem;
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0.3;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 0 1rem;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-weight: bold;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.process-step h3 {
    color: var(--primary-color);
    font-size: 18px;
    margin-bottom: 0.8rem;
}

.process-step p {
    color: var(--text-color);
    font-size: 14px;
    opacity: 0.9;
}

/* 联系部分样式 */
.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #dce6f3, #e8eef5);
    color: var(--text-color);
    text-align: center;
}

.contact-section h2 {
    font-size: clamp(28px, 4vw, 36px);
    margin-bottom: 1.5rem;
}

.contact-section p {
    font-size: 18px;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .intro-content {
        margin: 0 1rem;
        padding: 1.5rem;
    }

    .service-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .process-timeline {
        flex-direction: column;
        padding: 0 1rem;
    }

    .process-timeline::before {
        width: 2px;
        height: 100%;
        left: 25px;
        top: 0;
    }

    .process-step {
        text-align: left;
        padding: 0 0 2rem 4rem;
        display: flex;
        flex-direction: column;
    }

    .step-number {
        position: absolute;
        left: 0;
        margin: 0;
    }
}

@media (max-width: 480px) {
    .service-item {
        padding: 1.5rem;
    }

    .service-item i {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .process-step {
        padding-left: 3rem;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
}

/* 添加向下滚动图标样式 */
.scroll-down {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
    cursor: pointer;
    z-index: 2;
    opacity: 0.8;
    transition: all 0.3s ease;
    text-decoration: none;
}

.scroll-down:hover {
    opacity: 1;
    color: rgba(255, 255, 255, 0.9);
    transform: translateX(-50%) scale(1.1);
}

.scroll-down i {
    color: inherit;
}

/* 弹跳动画 */
@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 启用平滑滚动 */
html {
    scroll-behavior: smooth;
}

.service-link {
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
    transition: transform 0.3s ease;
}

.service-link:hover {
    transform: translateY(-5px);
}

.service-card {
    transition: box-shadow 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* 回到顶端按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    cursor: pointer;
}

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

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.back-to-top i {
    font-size: 20px;
    color: white;
    transition: all 0.3s ease;
}

.back-to-top:hover i {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }

    .back-to-top i {
        font-size: 16px;
    }
}

/* 二维码样式 */
.qr-image {

    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: transform 0.3s ease;
    filter: brightness(1.1);
    background-color: white;
    padding: 8px;
}

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

@media (max-width: 480px) {
    .qr-image {
        width: 200px;
    }
}

/* 微信联系方式样式 */
.wechat-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.qr-code {
    margin-top: 12px;
}

.qr-image {
    width: 200px;
   
    border-radius: 8px;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: transform 0.3s ease;
}

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

/* 移动端适配 */
@media (max-width: 480px) {
    .qr-image {
        width: 200px;
       
    }
}

/* Cookie 政策页面样式 */
.page-header {
    position: relative;
    min-height: 40vh;
    padding: 120px 0 60px;
    color: white;
    text-align: center;
    overflow: hidden;
    margin-bottom: 60px;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
    opacity: 0.1;
    animation: backgroundMove 20s linear infinite;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.page-header p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
    line-height: 1.6;
}

.header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0));
    z-index: 1;
}

.scroll-down {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
    cursor: pointer;
    z-index: 2;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.scroll-down:hover {
    opacity: 1;
}

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.policy-section {
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.policy-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.section-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.section-icon i {
    font-size: 1.5rem;
    color: var(--bg-color);
}

.policy-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.policy-section p {
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
}

.cookie-types {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.cookie-type {
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.cookie-type h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
}

.cookie-type h3 i {
    color: var(--primary-color);
}

.cookie-type p {
    font-size: 0.95rem;
    margin: 0;
}

.cookie-controls {
    margin-top: 1.5rem;
    text-align: center;
}

@media (max-width: 768px) {
    .page-header {
        min-height: 30vh;
        padding: 100px 0 40px;
    }

    .policy-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .policy-section {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .page-header {
        min-height: 25vh;
        padding: 80px 0 30px;
    }

    .page-header h1 {
        font-size: clamp(1.8rem, 4vw, 2.5rem);
    }

    .section-icon {
        width: 50px;
        height: 50px;
    }

    .section-icon i {
        font-size: 1.2rem;
    }

    .policy-section h2 {
        font-size: 1.3rem;
    }
}

.products {
    padding: 80px 0;
    background: linear-gradient(to bottom, var(--bg-color), rgba(237, 242, 247, 0.5));
}

.products .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.products-grid {
    display: grid;
    gap: 40px;
    padding: 40px 0;
}

.product-card {
    background: var(--bg-color);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: all 0.3s ease;
    flex-direction: column;

}


.product-showcase {
    position: relative;
    padding: 20px;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-bottom: 1px solid var(--border-color);
}

.product-image {
    aspect-ratio: 16/9;
    border-radius: 16px;
    overflow: hidden;
    background: white;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.product-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.product-content h3 {
    font-size: 24px;
    color: var(--heading-color);
    margin: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.product-description {
    color: var(--text-color-light);
    line-height: 1.6;
    margin: 0;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-features h4 {
    color: var(--heading-color);
    font-size: 18px;
    margin: 0;
    position: relative;
    padding-bottom: 8px;
}

.product-features h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.product-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-color);
    font-size: 15px;
    line-height: 1.5;
}

.product-features li i {
    color: var(--primary-color);
    font-size: 16px;
    padding-top: 3px;
}

.product-cta {
    margin-top: 20px;
}

.cta-button.primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(var(--primary-color-rgb), 0.3);
}

.cta-button.primary i {
    font-size: 18px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .products {
        padding: 60px 0;
    }

    .products-grid {
        grid-template-rows: repeat(2, auto);
        gap: 30px;
        padding: 30px 0;
    }

    .product-content {
        padding: 24px;
    }

    .product-content h3 {
        font-size: 22px;
    }

    .product-features li {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .products {
        padding: 40px 0;
    }

    .product-showcase {
        padding: 15px;
    }

    .product-content {
        padding: 20px;
    }

    .product-content h3 {
        font-size: 20px;
    }

    .product-features h4 {
        font-size: 16px;
    }

    .cta-button.primary {
        width: 100%;
        justify-content: center;
    }
}

/* 智能客服界面样式 */
.customer-service-interface {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    height: 500px;
    display: flex;
    flex-direction: column;
}

.platform-tabs {
    display: flex;
    background: #f5f5f5;
    padding: 10px;
    border-bottom: 1px solid #eee;
}

.platform-tabs .tab {
    padding: 8px 16px;
    margin-right: 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.platform-tabs .tab.active {
    background: #1890ff;
    color: white;
}

.platform-tabs .tab i {
    margin-right: 6px;
}

.interface-preview {
    flex: 1;
    padding: 20px;
    background: #f9f9f9;
}

.chat-window {
    background: white;
    border-radius: 8px;
    height: 100%;
    padding: 15px;
    overflow-y: auto;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
}

.message.bot {
    background: #f0f2f5;
    align-self: flex-start;
}

.message.user {
    background: #1890ff;
    color: white;
    align-self: flex-end;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .customer-service-interface {
        height: 400px;
    }

    .message {
        max-width: 90%;
    }
}

/* 性能优化相关样式 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 优化焦点样式 */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 添加平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 优化图片加载 */
img {
    content-visibility: auto;
    contain: paint;
}

/* 添加页面加载进度条 */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    transform-origin: 0 50%;
    transform: scaleX(0);
    transition: transform 0.3s ease-out;
    z-index: 9999;
}

.progress-bar.loading {
    transform: scaleX(1);
}

/* 优化移动端响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .nav-links {
        background: var(--nav-bg-color);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .hero-content {
        padding: 2rem 1rem;
    }

    .feature-card {
        margin: 1rem 0;
    }
}

/* 添加暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #ffffff;
        --heading-color: #ffffff;
        --nav-bg-color: rgba(26, 26, 26, 0.9);
        --card-bg-color: #2d2d2d;
        --border-color: #404040;
    }

    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }

    .feature-card,
    .service-card {
        background-color: var(--card-bg-color);
        border-color: var(--border-color);
    }
}

/* 优化表单交互 */
input,
textarea,
select {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb), 0.2);
}

/* 添加加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out forwards;
}