/* ==================== 全局变量 ==================== */
:root {
    --color-primary: #00D9FF;
    --color-primary-light: #4DE5FF;
    --color-primary-dark: #00B8D9;
    --color-secondary: #0A2463;
    --color-secondary-light: #1E3A8A;
    --color-accent: #6C63FF;
    --color-dark: #0F1419;
    --color-dark-light: #1A1F2E;
    --color-dark-lighter: #242B3D;
    --color-white: #ffffff;
    --color-gray: #94A3B8;
    
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
    
    --shadow-glow: 0 0 20px rgba(0, 217, 255, 0.3);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-dark);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* ==================== 渐变文字效果 ==================== */
.gradient-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 217, 255, 0.5);
}

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

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

.btn-large {
    padding: 18px 48px;
    font-size: 18px;
}

/* ==================== 导航栏 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
    transition: var(--transition-fast);
}

.header.scrolled {
    background: rgba(15, 20, 25, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.brand-icon {
    font-size: 32px;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-gray);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-fast);
}

/* ==================== Hero区域 ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 100px 20px 60px;
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 30px;
    animation: fadeIn 1s ease-out 0.2s both;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 72px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--color-gray);
    margin-bottom: 15px;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-description {
    font-size: 18px;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease-out 1s both;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-gray);
    font-size: 14px;
    animation: bounce 2s infinite;
    z-index: 2;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    margin: 10px auto 0;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(45deg);
}

/* ==================== 服务区域 ==================== */
.services {
    padding: 100px 0;
    background: var(--color-dark);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--color-dark-light);
    border: 1px solid rgba(0, 217, 255, 0.1);
    border-radius: 16px;
    padding: 40px 30px;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(108, 99, 255, 0.1) 100%);
    opacity: 0;
    transition: var(--transition-medium);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
    border-color: var(--color-primary);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.service-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-white);
}

.service-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.service-description {
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: 20px;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.service-features {
    display:grid;
    grid-template-columns: repeat(2, 1fr);
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.service-features li {
    padding: 8px 0;
    color: var(--color-gray);
    font-size: 15px;
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.service-link {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 16px;
    position: relative;
    z-index: 1;
}

.service-link:hover {
    color: var(--color-primary-light);
}

/* ==================== 数据统计 ==================== */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.stat-card {
    text-align: center;
    padding: 30px;
    background: var(--color-dark-lighter);
    border-radius: 16px;
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: 5px;
}

.stat-unit {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 600;
}

/* ==================== 公司优势 ==================== */
.advantages {
    padding: 100px 0;
    background: var(--color-dark);
}

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

.advantage-item {
    padding: 30px;
    background: var(--color-dark-light);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.advantage-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.advantage-description {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* ==================== 客户案例 ==================== */
.cases {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

.cases-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--color-dark);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-medium);
}

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

.case-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-placeholder {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
}

.case-content {
    padding: 30px;
}

.case-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.case-description {
    font-size: 15px;
    color: var(--color-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-tags {
    display: flex;
    gap: 10px;
}

.tag {
    padding: 6px 12px;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 20px;
    font-size: 13px;
    color: var(--color-primary);
}

/* ==================== CTA区域 ==================== */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-dark-light) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%2300D9FF" opacity="0.1"/></svg>');
    opacity: 0.5;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--color-dark);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.footer-description {
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 15px;
}

.footer-contact p {
    color: var(--color-gray);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-links li {
    padding: 8px 0;
    color: var(--color-gray);
    font-size: 14px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--color-gray);
    font-size: 14px;
    margin: 5px 0;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }
    
    .section-title {
        font-size: 38px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-dark);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        border-top: 1px solid rgba(0, 217, 255, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        padding: 0 40px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .services-grid,
    .advantages-grid,
    .cases-slider {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 42px;
    }
    
    .cta-title {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .btn-large {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== 页面标题区 ==================== */
.page-hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out;
}

.page-subtitle {
    font-size: 20px;
    color: var(--color-gray);
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* ==================== 关于我们页面 ==================== */
.about-intro {
    padding: 80px 0;
    background: var(--color-dark);
}

.about-description {
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.placeholder-icon {
    font-size: 80px;
}

.placeholder-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-white);
}

/* 愿景使命 */
.vision-mission {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

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

.vm-card {
    padding: 40px 30px;
    background: var(--color-dark-lighter);
    border-radius: 16px;
    border: 1px solid rgba(0, 217, 255, 0.1);
    text-align: center;
    transition: var(--transition-fast);
}

.vm-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.vm-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.vm-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.vm-description {
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* 时间轴 */
.timeline {
    padding: 80px 0;
    background: var(--color-dark);
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 50%;
}

.timeline-item:nth-child(even) {
    padding-left: 0;
    padding-right: 50%;
    text-align: right;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 10px;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    border: 3px solid var(--color-dark);
    box-shadow: var(--shadow-glow);
    animation: pulse-slow 3s infinite;
}

.timeline-content {
    padding: 20px 40px;
    background: var(--color-dark-light);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline-date {
    font-size: 14px;
    color: var(--color-primary);
    margin-bottom: 10px;
    font-weight: 600;
}

.timeline-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-description {
    font-size: 15px;
    color: var(--color-gray);
}

/* 团队介绍 */
.team {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

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

.team-card {
    padding: 40px 30px;
    background: var(--color-dark);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    transition: var(--transition-fast);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
}

.team-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-placeholder {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-white);
}

.team-name {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
}

.team-role {
    font-size: 16px;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.team-bio {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

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

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

.culture-item {
    padding: 30px;
    background: var(--color-dark-light);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.culture-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.culture-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.culture-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.culture-description {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* ==================== 服务页面 ==================== */
.services-detail {
    padding: 80px 0;
    background: var(--color-dark);
}

.service-detail-item {
    margin-bottom: 80px;
    padding: 50px;
    background: var(--color-dark-light);
    border-radius: 16px;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.service-detail-header {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
}

.service-icon-large {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-icon-large svg {
    width: 48px;
    height: 48px;
    color: var(--color-white);
}

.service-detail-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-detail-subtitle {
    font-size: 18px;
    color: var(--color-gray);
}

.service-features-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-item {
    padding: 30px;
    background: var(--color-dark);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.feature-description {
    font-size: 15px;
    color: var(--color-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-points {
    list-style: none;
}

.feature-points li {
    padding: 8px 0;
    font-size: 15px;
    color: var(--color-gray);
    position: relative;
    padding-left: 25px;
}

.feature-points li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* 解决方案 */
.solutions {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

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

.solution-card {
    padding: 40px 30px;
    background: var(--color-dark);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card);
}

.solution-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.solution-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.solution-description {
    font-size: 15px;
    color: var(--color-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-features {
    list-style: none;
}

.solution-features li {
    padding: 6px 0;
    font-size: 14px;
    color: var(--color-gray);
    position: relative;
    padding-left: 20px;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* 服务流程 */
.process {
    padding: 80px 0;
    background: var(--color-dark);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.process-step {
    text-align: center;
    padding: 30px;
    position: relative;
}

.step-number {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
    opacity: 0.3;
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.step-description {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* ==================== 联系我们页面 ==================== */
.contact-section {
    padding: 80px 0;
    background: var(--color-dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--color-dark-light);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.contact-item:hover {
    border-color: var(--color-primary);
    transform: translateX(10px);
}

.contact-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.contact-text h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.contact-text p {
    font-size: 15px;
    color: var(--color-gray);
    margin: 5px 0;
}

.contact-note {
    font-size: 13px !important;
    opacity: 0.7;
}

/* 联系表单 */
.contact-form-wrapper {
    padding: 40px;
    background: var(--color-dark-light);
    border-radius: 16px;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.contact-form {
    margin-top: 40px;
}

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

.form-label {
    display: block;
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--color-white);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--color-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--color-white);
    font-size: 15px;
    font-family: var(--font-body);
    transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray);
}

.form-select {
    cursor: pointer;
}

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

/* 公司简介 */
.company-intro {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

.company-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.info-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--color-dark);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.info-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.info-content h3 {
    font-size: 14px;
    color: var(--color-gray);
    margin-bottom: 8px;
}

.info-content p {
    font-size: 16px;
    font-weight: 500;
}

/* ==================== 响应式补充 ==================== */
@media (max-width: 1024px) {
    .page-title {
        font-size: 48px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-container::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 60px;
        padding-right: 0;
        text-align: left;
    }
    
    .timeline-marker {
        left: 20px;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 36px;
    }
    
    .service-detail-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .service-detail-title {
        font-size: 24px;
    }
    
    .service-features-list {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 20px;
    }
}