/* 全局样式 - 高科技风格 */
/* 编码：GB2312 */

/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 全局变量 */
:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --accent-color: #00bcd4;
    --bg-dark: #0a0e27;
    --bg-card: rgba(20, 30, 60, 0.8);
    --text-light: #ecf0f1;
    --text-muted: #bdc3c7;
    --border-color: rgba(52, 152, 219, 0.3);
    --shadow: 0 10px 30px rgba(52, 152, 219, 0.2);
    --transition: all 0.3s ease;
}

/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(52, 152, 219, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(0, 188, 212, 0.1) 0%, transparent 20%);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 高科技风格的背景装饰 */
.tech-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(45deg, transparent 49%, rgba(52, 152, 219, 0.05) 50%, transparent 51%),
        linear-gradient(-45deg, transparent 49%, rgba(52, 152, 219, 0.05) 50%, transparent 51%);
    background-size: 50px 50px;
    z-index: -1;
    animation: techBgMove 20s linear infinite;
}

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

/* 头部导航栏 */
.tech-header {
    background: rgba(20, 30, 60, 0.95);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 25px rgba(0, 0, 0, 0.35);
    transition: all 0.3s ease;
}

.tech-nav {
    display: block;
    padding: 0;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.tech-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 12px 20px;
    margin: 0 auto;
}

/* 企业标志 - 优化位置和样式 */
.logo {
    position: relative;
    z-index: 1001;
    display: flex;
    align-items: center;
    margin-right: auto;
    margin-left: 0;
    padding: 0;
    flex-shrink: 0;
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    text-shadow: 0 0 15px rgba(52, 152, 219, 0.6);
    letter-spacing: -0.5px;
    transition: all 0.3s ease;
    white-space: nowrap;
    display: block;
}

.logo .tech-accent {
    color: var(--accent-color);
    animation: techGlow 2s ease-in-out infinite alternate;
    display: inline-block;
    margin-left: 4px;
}

@keyframes techGlow {
    from { text-shadow: 0 0 12px rgba(0, 188, 212, 0.6); }
    to { text-shadow: 0 0 25px rgba(0, 188, 212, 0.9), 0 0 35px rgba(0, 188, 212, 0.6); }
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    margin: 0;
    padding: 0;
    align-items: center;
    transition: all 0.3s ease;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    padding: 12px 0;
    letter-spacing: 0.3px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: all 0.3s ease;
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.5);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    transform: translateY(-1px);
    text-shadow: 0 0 8px rgba(52, 152, 219, 0.4);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
    box-shadow: 0 0 15px rgba(52, 152, 219, 0.7);
}

/* 汉堡菜单按钮 - 优化样式和动画 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 7px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 12px;
    z-index: 1001;
    transition: all 0.3s ease;
}

.hamburger:hover {
    background: rgba(52, 152, 219, 0.1);
    border-radius: 8px;
}

.bar {
    width: 28px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.5);
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.8);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(10px, -10px);
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.8);
}

/* 主内容区域 */
main {
    margin-top: 84px;
    min-height: calc(100vh - 84px);
    transition: all 0.3s ease;
}

/* 移动端调整 */
@media (max-width: 768px) {
    main {
        margin-top: 72px;
        min-height: calc(100vh - 72px);
    }
}

/* 横幅区域 */
.tech-banner {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.banner-content {
    position: relative;
    z-index: 2;
}

.banner-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-light);
    margin: 0 0 20px 0;
    text-shadow: 0 0 20px rgba(52, 152, 219, 0.5);
    animation: bannerTitleFade 1s ease-out;
}

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

.banner-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin: 0 0 40px 0;
    animation: bannerSubtitleFade 1s ease-out 0.2s both;
}

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

/* 横幅按钮 */
.banner-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: bannerButtonsFade 1s ease-out 0.4s both;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
    z-index: -1;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-light);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(52, 152, 219, 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(52, 152, 219, 0.5);
}

/* 横幅装饰元素 */
.banner-decor {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(52, 152, 219, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 188, 212, 0.1) 0%, transparent 50%);
    animation: bannerDecorMove 20s linear infinite;
    z-index: 1;
}

@keyframes bannerDecorMove {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 50px) rotate(360deg); }
}

/* 页面标题 */
.page-header {
    padding: 60px 0;
    text-align: center;
    background: rgba(20, 30, 60, 0.5);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 10px 0;
}

.page-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin: 0;
}

/* 章节标题 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 15px 0;
    position: relative;
    display: inline-block;
}

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

/* 高科技分隔线 */
.tech-divider {
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--accent-color), transparent);
    margin: 0 auto;
    border-radius: 2px;
    animation: dividerGlow 2s ease-in-out infinite alternate;
}

@keyframes dividerGlow {
    from { box-shadow: 0 0 5px rgba(52, 152, 219, 0.5); }
    to { box-shadow: 0 0 15px rgba(52, 152, 219, 0.8), 0 0 25px rgba(0, 188, 212, 0.5); }
}

/* 关于我们区域 */
.tech-about {
    padding: 80px 0;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 16px;
    line-height: 2.0;
    color: var(--text-light);
    text-align: justify;
    background: var(--bg-card);
    padding: 40px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.about-text p {
    margin-bottom: 15px;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* 服务卡片 */
.tech-services {
    padding: 80px 0;
    background: rgba(20, 30, 60, 0.3);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.service-icon {
    margin-bottom: 20px;
    text-align: center;
}

.tech-icon {
    font-size: 40px;
    color: var(--primary-color);
    animation: iconFloat 3s ease-in-out infinite;
}

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

.service-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 15px 0;
    text-align: center;
}

.service-description {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    text-align: center;
}

.service-link {
    display: inline-block;
    margin-top: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.service-link:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 服务优势 */
.service-advantages {
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

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

.advantage-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 15px 0;
}

.advantage-description {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
}

/* 公司信息 */
.company-info {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(20, 30, 60, 0.3) 0%, rgba(30, 40, 80, 0.5) 100%);
    position: relative;
    overflow: hidden;
}

.company-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(52, 152, 219, 0.1), transparent);
    transition: var(--transition);
    animation: shine 3s ease-in-out infinite;
}

@keyframes shine {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
    position: relative;
    z-index: 2;
}

.info-item {
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(52, 152, 219, 0.2);
    border-radius: 16px;
    transition: var(--transition);
    backdrop-filter: blur(15px);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.info-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(52, 152, 219, 0.3);
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

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

.info-item::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -50px;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(52, 152, 219, 0.1) 0%, transparent 70%);
    transform: translateY(-50%);
    transition: var(--transition);
    z-index: -1;
}

.info-item:hover::after {
    right: -20px;
}

.info-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-label::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

.info-value {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-light);
    margin: 0;
    line-height: 1.5;
}

.info-value a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

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

.info-value a:hover {
    color: var(--accent-color);
}

.info-value a:hover::after {
    width: 100%;
}

/* 企业文化 */
.tech-culture {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(20, 30, 60, 0.98) 100%);
    position: relative;
    overflow: hidden;
}

.tech-culture::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(52, 152, 219, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 188, 212, 0.1) 0%, transparent 50%);
    animation: cultureBgMove 25s ease-in-out infinite alternate;
    z-index: 1;
}

@keyframes cultureBgMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(20px, 20px); }
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(220px, 1fr));
    gap: 35px;
    margin-top: 40px;
    position: relative;
    z-index: 2;
    justify-content: center;
    align-items: stretch;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .culture-grid {
        grid-template-columns: repeat(2, minmax(280px, 1fr));
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    .culture-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
}

.culture-item {
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(52, 152, 219, 0.25);
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(18px);
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(0);
}

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

.culture-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(52, 152, 219, 0.05) 0%, transparent 70%);
    transform: translate(50%, 50%);
    transition: var(--transition);
    z-index: -1;
}

.culture-item:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 18px 40px rgba(52, 152, 219, 0.4);
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.09);
}

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

.culture-item:hover::after {
    transform: translate(30%, 30%);
    opacity: 0.8;
}

.culture-icon {
    font-size: 56px;
    color: var(--accent-color);
    margin-bottom: 25px;
    transition: var(--transition);
    display: inline-block;
    position: relative;
    z-index: 2;
}

.culture-item:hover .culture-icon {
    transform: scale(1.2) rotate(8deg);
    text-shadow: 0 0 30px rgba(0, 188, 212, 0.7);
    animation: iconBounce 0.6s ease-in-out;
}

@keyframes iconBounce {
    0%, 100% { transform: scale(1.2) rotate(8deg); }
    50% { transform: scale(1.3) rotate(-4deg); }
}

.culture-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 20px 0;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.culture-item:hover .culture-title {
    color: var(--accent-color);
    text-shadow: 0 0 15px rgba(0, 188, 212, 0.5);
}

.culture-description {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.9;
    margin: 0;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.culture-item:hover .culture-description {
    color: var(--text-light);
}

/* 发展历程 */
.tech-history {
    padding: 80px 0;
    background: rgba(20, 30, 60, 0.3);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.5);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

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

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--text-light);
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 16px;
    z-index: 3;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
    min-width: 80px;
    text-align: center;
}

.timeline-content {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    width: 45%;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
    margin-left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
}

.timeline-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 15px 0;
}

.timeline-description {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
}

/* 联系信息 */
.contact-info {
    padding: 80px 0;
    background: rgba(20, 30, 60, 0.3);
}

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

.contact-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

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

.contact-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.contact-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 15px 0;
}

.contact-text {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
}

.contact-text a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.contact-text a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 联系表单 */
.contact-form-section {
    padding: 80px 0;
}

/* 服务流程 */
.service-process {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(20, 30, 60, 0.98) 100%);
    position: relative;
    overflow: hidden;
}

.service-process .container {
    max-width: 1400px;
}

.service-process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(52, 152, 219, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 188, 212, 0.08) 0%, transparent 40%);
    animation: processBgMove 30s ease-in-out infinite alternate;
    z-index: 1;
}

@keyframes processBgMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-20px, -20px); }
}

.process-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 60px;
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.03);
    padding: 40px 20px;
    border-radius: 24px;
    border: 1px solid rgba(52, 152, 219, 0.2);
    backdrop-filter: blur(10px);
}

/* 水平排列的步骤容器 */
.process-horizontal {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: nowrap;
    width: 100%;
    position: relative;
    overflow-x: auto;
    padding: 20px 10px;
}

/* 步骤项 */
.process-step {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(52, 152, 219, 0.25);
    border-radius: 20px;
    padding: 30px 15px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(18px);
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(0);
    min-width: 160px;
    max-width: 200px;
    flex: 1;
    flex-shrink: 0;
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.process-step::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(52, 152, 219, 0.05) 0%, transparent 70%);
    transform: translate(50%, -50%);
    transition: var(--transition);
    z-index: -1;
}

.process-step:hover {
    transform: translateY(-15px) scale(1.05);
    box-shadow: 0 20px 50px rgba(52, 152, 219, 0.45);
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
    z-index: 3;
}

.process-step:hover::before {
    transform: scaleX(1);
}

.process-step:hover::after {
    transform: translate(30%, -30%);
    opacity: 0.8;
}

.step-number {
    font-size: 40px;
    font-weight: 800;
    color: rgba(52, 152, 219, 0.2);
    margin-bottom: 15px;
    transition: var(--transition);
    display: inline-block;
    position: relative;
    z-index: 2;
    text-shadow: 0 0 20px rgba(52, 152, 219, 0.1);
}

.process-step:hover .step-number {
    color: var(--primary-color);
    text-shadow: 0 0 30px rgba(52, 152, 219, 0.7);
    transform: scale(1.1);
}

.step-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0 0 15px 0;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.process-step:hover .step-title {
    color: var(--accent-color);
    text-shadow: 0 0 15px rgba(0, 188, 212, 0.5);
}

.step-description {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.process-step:hover .step-description {
    color: var(--text-light);
}

/* 箭头样式 - 只在大屏幕显示 */
.process-arrow {
    font-size: 24px;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: var(--transition);
    animation: arrowPulse 2s ease-in-out infinite;
    position: relative;
    z-index: 2;
    background: transparent;
    min-width: 20px;
    height: 60px;
    flex-shrink: 0;
    pointer-events: none;
}

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

.process-steps:hover .process-arrow {
    opacity: 0.8;
    color: var(--accent-color);
}

/* 添加步骤之间的连接线 - 只在大屏幕显示 */
.process-horizontal::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(52, 152, 219, 0.4), transparent);
    transform: translateY(-50%);
    z-index: 1;
    animation: lineGlow 3s ease-in-out infinite alternate;
}

@keyframes lineGlow {
    from { opacity: 0.3; box-shadow: 0 0 10px rgba(52, 152, 219, 0.2); }
    to { opacity: 0.7; box-shadow: 0 0 20px rgba(52, 152, 219, 0.5); }
}

/* 响应式服务流程 */
@media (max-width: 1400px) {
    .process-step {
        min-width: 180px;
        max-width: 220px;
    }
    
    .step-number {
        font-size: 44px;
    }
    
    .step-title {
        font-size: 20px;
    }
}

@media (max-width: 1200px) {
    .process-horizontal {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .process-step {
        width: 100%;
        max-width: 500px;
        min-width: auto;
        margin: 0;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        min-width: 30px;
        height: 60px;
        margin: 0;
    }
    
    .process-horizontal::after {
        display: none;
    }
    
    .step-number {
        font-size: 40px;
    }
    
    .step-title {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .service-process {
        padding: 60px 0;
    }
    
    .process-steps {
        margin-top: 40px;
        padding: 30px 15px;
    }
    
    .process-step {
        padding: 25px 15px;
        max-width: 100%;
    }
    
    .step-number {
        font-size: 36px;
    }
    
    .step-title {
        font-size: 18px;
    }
    
    .step-description {
        font-size: 14px;
    }
    
    .process-arrow {
        height: 50px;
        font-size: 24px;
    }
}

/* 消息提示框 */
.message-box {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

.message-box.success {
    background: rgba(46, 204, 113, 0.2);
    color: #2ecc71;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.message-box.error {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

/* 表单样式 */
.tech-form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 40px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-input, .form-textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(44, 62, 80, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-light);
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

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

/* 验证码 */
.captcha-group {
    display: flex;
    gap: 15px;
    align-items: flex-end;
}

.captcha-left {
    flex: 1;
}

.captcha-right {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.captcha-image {
    width: 120px;
    height: 40px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.captcha-image:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.3);
}

.captcha-refresh {
    font-size: 12px;
    color: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.captcha-refresh:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 页脚样式 */
.tech-footer {
    background: rgba(10, 14, 39, 0.95);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 20px;
    position: relative;
    overflow: hidden;
}

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

.footer-section h3.footer-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 20px 0;
}

.footer-section h4.footer-subtitle {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent-color);
    margin: 0 0 15px 0;
}

.footer-text {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0 0 15px 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
    display: inline-block;
}

.footer-link:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.service-bullet {
    color: var(--accent-color);
    margin-right: 8px;
    font-size: 16px;
}

/* 页脚底部 */
.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(52, 152, 219, 0.2);
}

.tech-line {
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.copyright {
    color: var(--text-muted);
    font-size: 14px;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .nav-menu {
        gap: 30px;
    }
    
    .logo h1 {
        font-size: 26px;
    }
}

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, minmax(250px, 1fr));
    }
    
    .advantages-grid,
    .contact-grid,
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .nav-menu {
        gap: 25px;
    }
    
    .logo h1 {
        font-size: 24px;
    }
}

@media (max-width: 768px) {
    /* 时间线响应式 */
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .timeline-year {
        left: 30px;
        transform: translateX(-50%);
        top: 0;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 60px !important;
        margin-right: 0 !important;
    }
    
    /* 导航栏 */
    .nav-menu {
        position: fixed;
        top: 72px;
        left: -100%;
        flex-direction: column;
        gap: 0;
        background: rgba(10, 14, 39, 0.99);
        backdrop-filter: blur(15px);
        width: 100%;
        text-align: center;
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
        border-bottom: 1px solid var(--border-color);
        max-height: calc(100vh - 72px);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0;
        width: 100%;
        border-bottom: 1px solid rgba(52, 152, 219, 0.1);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-link {
        display: block;
        padding: 20px 15px;
        font-size: 16px;
        border-bottom: none;
        transition: all 0.3s ease;
    }
    
    .nav-link:hover {
        background: rgba(52, 152, 219, 0.1);
    }

    .hamburger {
        display: flex;
        padding: 12px;
    }
    
    /* Logo 优化 */
    .logo {
        margin-right: auto;
        margin-left: 0;
    }
    
    .logo h1 {
        font-size: 22px;
    }
    
    /* 容器间距 */
    .container {
        padding: 0 15px;
    }

    /* 横幅 */
    .banner-title {
        font-size: 36px;
    }

    .banner-subtitle {
        font-size: 16px;
    }

    .banner-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* 表单 */
    .form-grid {
        grid-template-columns: 1fr;
    }

    .captcha-group {
        flex-direction: column;
        align-items: stretch;
    }

    .captcha-right {
        flex-direction: row;
        justify-content: space-between;
    }

    /* 卡片网格 */
    .services-grid,
    .advantages-grid,
    .contact-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }

    /* 技术线 */
    .tech-line {
        width: 150px;
    }
}

@media (max-width: 480px) {
    /* 标志 */
    .logo h1 {
        font-size: 20px;
    }

    /* 横幅 */
    .banner-title {
        font-size: 28px;
    }

    .banner-subtitle {
        font-size: 14px;
    }

    /* 按钮 */
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    /* 表单 */
    .tech-form {
        padding: 25px;
    }

    /* 验证码 */
    .captcha-right {
        flex-direction: column;
        align-items: stretch;
    }

    .captcha-image {
        width: 100%;
    }
}

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

::-webkit-scrollbar-track {
    background: rgba(20, 30, 60, 0.8);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
    box-shadow: 0 0 10px rgba(0, 188, 212, 0.5);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(52, 152, 219, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 淡入动画 */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

/* 悬停效果 */
.hover-lift {
    transition: var(--transition);
}

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

/* 文本选择样式 */
::selection {
    background: rgba(52, 152, 219, 0.3);
    color: var(--text-light);
}

::-moz-selection {
    background: rgba(52, 152, 219, 0.3);
    color: var(--text-light);
}