/* 全局变量 */
:root {
    --primary-dark: #1a365d;
    --primary-medium: #2d4a7c;
    --primary-light: #2d5a8a;
    --accent: #ff9500;
    --accent-light: #ffb84d;
    --bg-light: #f0f4f8;
    --bg-white: #ffffff;
    --text-dark: #333;
    --text-light: #666;
    --text-white: #fff;
    --border-light: #e8eef4;
    --shadow-sm: 0 5px 20px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(26, 54, 93, 0.15);
    --gradient-primary: linear-gradient(
        135deg,
        var(--primary-dark) 0%,
        var(--primary-medium) 100%
    );
    --gradient-accent: linear-gradient(
        135deg,
        var(--accent) 0%,
        var(--accent-light) 100%
    );
    --gradient-card: linear-gradient(
        145deg,
        var(--bg-white) 0%,
        var(--bg-light) 100%
    );
    --gradient-card-alt: linear-gradient(
        145deg,
        var(--bg-white) 0%,
        #f8fafc 100%
    );
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

@media (min-width: 1201px) {
    .container {
        max-width: 1400px;
        padding: 0 30px;
    }
}

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, #1a365d 0%, #2d4a7c 100%);
    color: white;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
}

@media (min-width: 1201px) {
    .navbar .container {
        max-width: 1400px;
    }

    .nav-links li {
        margin-left: 40px;
    }

    .nav-links a {
        font-size: 17px;
        padding: 10px 20px;
    }

    .company-info p {
        font-size: 18px;
    }
}

.logo h1 {
    font-size: 24px;
    margin-bottom: 5px;
    font-weight: 700;
}

.logo p {
    font-size: 14px;
    opacity: 0.9;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s;
    padding: 8px 15px;
    border-radius: 5px;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: rgba(255, 149, 0, 0.2);
    color: #ff9500;
}

.contact-info p {
    font-size: 16px;
    font-weight: bold;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1100;
}

.menu-toggle span {
    width: 100%;
    height: 3px;
    background: white;
    border-radius: 3px;
    transition: all 0.3s;
}

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

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 轮播Banner */
.banner {
    position: relative;
    height: 650px;
    overflow: hidden;
}

.slides {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(26, 54, 93, 0.95) 0%,
        rgba(45, 74, 124, 0.85) 50%,
        rgba(26, 54, 93, 0.9) 100%
    );
    z-index: 1;
}

.slide::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
}

.slide:nth-child(1) {
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 50%, #1a365d 100%);
}

.slide:nth-child(2) {
    background: linear-gradient(135deg, #1a365d 0%, #3d6a9a 50%, #1a365d 100%);
}

.slide:nth-child(3) {
    background: linear-gradient(135deg, #1a365d 0%, #4a7ab0 50%, #1a365d 100%);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    max-width: 1000px;
    width: 95%;
    z-index: 2;
    padding: 60px 80px;
}

.slide-content h2 {
    font-size: 48px;
    margin-bottom: 30px;
    line-height: 1.3;
    letter-spacing: 3px;
    text-shadow: 0 3px 20px rgba(0, 0, 0, 0.4);
    animation: fadeInUp 0.8s ease;
    word-wrap: break-word;
    white-space: normal;
    font-weight: 700;
}

.slide-content p {
    font-size: 22px;
    margin-bottom: 45px;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
    word-wrap: break-word;
    white-space: normal;
    letter-spacing: 1px;
    line-height: 1.6;
}

@media (min-width: 1201px) {
    .slide-content h2 {
        font-size: 48px;
    }

    .slide-content p {
        font-size: 22px;
    }
}

.slide-content .btn {
    animation: fadeInUp 0.8s ease 0.4s both;
}

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

.slide-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.indicator:hover {
    background-color: rgba(255, 255, 255, 0.7);
}

.indicator.active {
    background-color: white;
    width: 35px;
    border-radius: 6px;
}

/* 核心优势 */
.advantages {
    padding: 100px 0;
    background-color: white;
    position: relative;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #1a365d, #ff9500, #1a365d);
}

.advantages h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 20px;
    color: #1a365d;
    position: relative;
}

.advantages h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #ff9500, #ffb84d);
    margin: 20px auto 0;
    border-radius: 2px;
}

.advantages .section-subtitle {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 60px;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 35px;
}

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(145deg, #ffffff 0%, #f0f4f8 100%);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid #e8eef4;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 320px;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a365d, #ff9500);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.advantage-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(26, 54, 93, 0.15);
}

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

.advantage-icon {
    width: 110px;
    height: 110px;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 8px 25px rgba(26, 54, 93, 0.3);
    transition: all 0.3s;
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 35px rgba(26, 54, 93, 0.4);
}

.advantage-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1a365d;
    font-weight: 600;
}

.advantage-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

/* 核心服务 */
.core-services {
    padding: 80px 0;
    background: linear-gradient(180deg, #f0f4f8 0%, #e8eef4 100%);
    text-align: center;
    position: relative;
}

.core-services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%231a365d' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.core-services .container {
    position: relative;
    z-index: 1;
}

.core-services h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #1a365d;
    font-weight: 700;
}

.service-tagline {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 40px;
    background: white;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    display: inline-block;
}

/* 行动引导 */
.call-to-action {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 50%, #1a365d 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.call-to-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.call-to-action .container {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 45px;
    font-weight: 700;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 18px 40px;
    background-color: white;
    color: #1a365d;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 149, 0, 0.4);
    background-color: #ff9500;
    color: white;
}

.btn-primary {
    background-color: #ff9500;
    color: white;
}

.btn-primary:hover {
    background-color: #ff7a00;
    box-shadow: 0 8px 25px rgba(255, 149, 0, 0.5);
}

/* 页脚 */
.footer {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-info h3 {
    font-size: 20px;
    margin-bottom: 25px;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.footer-info h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #ff9500, #ffb84d);
    border-radius: 2px;
}

.footer-info p {
    margin-bottom: 12px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 25px;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #ff9500, #ffb84d);
    border-radius: 2px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s;
    display: inline-block;
    padding: 5px 0;
}

.footer-links a:hover {
    color: #ff9500;
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-bottom a:hover {
    color: #fff;
}

/* 通用页面样式 */
.page-content {
    padding: 80px 0;
    background-color: white;
}

.page-content h2 {
    font-size: 36px;
    margin-bottom: 50px;
    color: #1a365d;
    text-align: center;
    font-weight: 700;
    position: relative;
}

.page-content h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #ff9500, #ffb84d);
    margin: 20px auto 0;
    border-radius: 2px;
}

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

.page-content ul {
    margin-left: 20px;
    margin-bottom: 25px;
}

.page-content li {
    margin-bottom: 12px;
    font-size: 16px;
    line-height: 1.7;
}

/* 关于我们页面 */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

/* 关于我们 - 头部区域 */
.about-hero {
    text-align: center;
    padding: 50px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    margin-bottom: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.about-icon-large {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    color: white;
    box-shadow: 0 10px 35px rgba(26, 54, 93, 0.3);
}

.about-hero h3 {
    font-size: 28px;
    color: #1a365d;
    margin-bottom: 15px;
    font-weight: 600;
}

.about-subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 8px;
}

/* 关于我们 - 数据统计 */
.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: #ff9500;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #666;
}

/* 关于我们 - 定位区域 */
.about-section {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 100%);
    border-radius: 15px;
    margin-bottom: 40px;
}

.about-section h3 {
    font-size: 24px;
    color: white;
    margin-bottom: 15px;
    font-weight: 600;
}

.about-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

/* 关于我们 - 优势卡片 */
.about-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.about-feature {
    text-align: center;
    padding: 35px 25px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.about-feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.about-feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #ff9500 0%, #ffb84d 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
}

.about-feature h4 {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 12px;
    font-weight: 600;
}

.about-feature p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 关于我们 - 简介 */
.about-intro {
    text-align: center;
    padding: 40px;
    background: linear-gradient(145deg, #f8fafc 0%, #f0f4f8 100%);
    border-radius: 15px;
}

.about-intro p {
    font-size: 16px;
    color: #333;
    line-height: 1.8;
    margin-bottom: 15px;
}

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

@media (max-width: 992px) {
    .about-stats,
    .about-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .about-stats,
    .about-features {
        grid-template-columns: 1fr;
    }

    .about-hero {
        padding: 30px 20px;
    }

    .about-hero h3 {
        font-size: 22px;
    }
}

/* 技术页面 */
.technology-content h3 {
    font-size: 24px;
    color: #1a365d;
    margin: 40px 0 20px;
    font-weight: 600;
    padding-bottom: 10px;
    border-bottom: 2px solid #ff9500;
    display: inline-block;
}

.technology-content h3:first-child {
    margin-top: 0;
}

.technology-content p {
    font-size: 17px;
    line-height: 1.9;
}

.technology-content ul {
    background: linear-gradient(145deg, #f8fafc 0%, #f0f4f8 100%);
    padding: 30px 40px;
    border-radius: 15px;
    margin: 25px 0;
}

.technology-content li {
    padding: 12px 0;
    font-size: 16px;
}

.technology-content .tech-hero {
    text-align: center;
    padding: 50px 20px;
    background: linear-gradient(145deg, #f8fafc 0%, #f0f4f8 100%);
    border-radius: 20px;
    margin-bottom: 40px;
}

.technology-content .tech-icon-large {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    color: white;
    box-shadow: 0 10px 35px rgba(26, 54, 93, 0.3);
}

.technology-content .tech-hero h3 {
    border-bottom: none;
    font-size: 28px;
    margin-bottom: 20px;
}

.technology-content .tech-hero p {
    font-size: 17px;
    max-width: 700px;
    margin: 0 auto;
}

.technology-content .tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.technology-content .tech-feature {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 1px solid #e8eef4;
    text-align: center;
}

.technology-content .tech-feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.technology-content .tech-feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
}

.technology-content .tech-feature h4 {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 12px;
    font-weight: 600;
}

.technology-content .tech-feature p {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

/* 系统优势 */
.tech-advantages {
    margin: 50px 0;
}

.tech-advantages h3 {
    font-size: 24px;
    color: #1a365d;
    margin-bottom: 30px;
    text-align: center;
}

.tech-advantage-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tech-advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 1px solid #e8eef4;
}

.tech-advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.tech-advantage-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ff9500 0%, #ffb84d 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 18px;
    flex-shrink: 0;
}

.tech-advantage-content h4 {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 10px;
    font-weight: 600;
}

.tech-advantage-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
    margin: 0;
}

/* 技术结论 */
.tech-conclusion {
    text-align: center;
    font-size: 16px;
    color: #333;
    line-height: 1.8;
    max-width: 800px;
    margin: 40px auto 0;
    padding: 30px;
    background: linear-gradient(145deg, #f8fafc 0%, #f0f4f8 100%);
    border-radius: 15px;
}

/* 服务内容页面 */
.services-content .service-list {
    margin-bottom: 60px;
}

.services-content .service-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    border-left: 4px solid #ff9500;
    transition: all 0.3s;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 25px;
}

.services-content .service-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.services-content .service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff9500 0%, #ffb84d 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 5px 15px rgba(255, 149, 0, 0.3);
    flex-shrink: 0;
    margin-right: 20px;
}

.services-content .service-text h3 {
    font-size: 20px;
    color: #1a365d;
    margin-bottom: 10px;
    font-weight: 600;
}

.services-content .service-text p {
    font-size: 15px;
    color: #666;
    margin-bottom: 0;
    line-height: 1.7;
}

/* 适用场景区域 */
.scenario-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #e8eef4;
}

.scenario-header {
    text-align: center;
    margin-bottom: 40px;
}

.scenario-header h3 {
    font-size: 28px;
    color: #1a365d;
    margin-bottom: 15px;
    font-weight: 600;
}

.scenario-header p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 适用场景网格 */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.scenario-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
    border: 1px solid #e8eef4;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.scenario-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: #ff9500;
}

.scenario-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #1a365d 0%, #2d4a7c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.4s ease;
}

.scenario-item:hover .scenario-icon {
    background: linear-gradient(135deg, #ff9500 0%, #ffb84d 100%);
    transform: scale(1.1);
}

.scenario-item h4 {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 15px;
    font-weight: 600;
    flex-shrink: 0;
}

.scenario-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.5;
    margin: 0;
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.services-content .service-item:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

/* 服务流程 */
.process-steps {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 20px;
    margin-top: 50px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 40px;
    right: 40px;
    height: 3px;
    background: linear-gradient(90deg, #ff9500, #ffb84d, #ff9500);
    z-index: 0;
    opacity: 0.5;
}

.process-step {
    text-align: center;
    padding: 40px 20px 30px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    position: relative;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 1px solid #e8eef4;
    z-index: 1;
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(255, 149, 0, 0.15);
    border-color: #ff9500;
}

.process-step::before {
    content: attr(data-step);
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #ff9500 0%, #ffb84d 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 6px 20px rgba(255, 149, 0, 0.4);
    border: 3px solid white;
}

.process-step h3 {
    margin-bottom: 15px;
    color: #1a365d;
    font-size: 18px;
    font-weight: 600;
}

.process-step p {
    font-size: 14px;
    color: #666;
    margin-bottom: 0;
    line-height: 1.7;
}

/* 案例展示 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    margin-top: 50px;
}

.case-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
}

.case-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.12);
}

.case-image {
    height: 220px;
    background: linear-gradient(135deg, #1a365d 0%, #2d5a8a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 20.5V29m0-18v8.5m-9 9.5h18.5' stroke='%23ffffff' stroke-opacity='0.1' fill='none'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    margin-bottom: 15px;
    color: #1a365d;
    font-size: 20px;
    font-weight: 600;
}

.case-content p {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    line-height: 1.7;
}

/* 联系我们 */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.company-info {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.company-info h3 {
    font-size: 24px;
    color: #1a365d;
    margin-bottom: 30px;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.company-info h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #ff9500, #ffb84d);
    border-radius: 2px;
}

.company-info p {
    font-size: 17px;
    margin-bottom: 18px;
    padding: 15px 0;
    border-bottom: 1px solid #e8eef4;
    line-height: 1.8;
}

.company-info p:last-child {
    border-bottom: none;
}

.company-info strong {
    color: #1a365d;
    font-weight: 600;
    display: inline-block;
    min-width: 120px;
}

/* 大屏幕优化 */
@media (min-width: 1201px) {
    .container {
        max-width: 1400px;
        padding: 0 30px;
    }

    .navbar .container {
        max-width: 1400px;
    }

    .slide-content h2 {
        font-size: 48px;
    }

    .slide-content p {
        font-size: 22px;
    }

    .advantages h2,
    .core-services h2,
    .call-to-action h2,
    .page-content h2 {
        font-size: 40px;
    }

    .advantage-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 35px;
    }

    .advantage-item {
        text-align: center;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        min-height: 280px;
    }

    .advantage-icon {
        margin: 0 0 25px;
    }

    .advantage-item h3 {
        margin-bottom: 15px;
    }

    .advantage-item p {
        text-align: center;
    }

    .services-content .service-item {
        gap: 25px;
    }

    .scenario-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }

    .technology-content .tech-features {
        grid-template-columns: repeat(4, 1fr);
        gap: 35px;
    }

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

    .process-steps {
        grid-template-columns: repeat(7, 1fr);
        gap: 20px;
    }

    .footer-content {
        gap: 60px;
    }
}

/* 中等屏幕优化 */
@media (min-width: 769px) and (max-width: 1200px) {
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .advantage-item {
        text-align: center;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        min-height: 260px;
    }

    .advantage-icon {
        margin: 0 0 25px;
    }

    .advantage-item h3 {
        margin-bottom: 15px;
    }

    .advantage-item p {
        text-align: center;
    }

    .services-content .service-item {
        flex-direction: row;
        align-items: center;
    }

    .services-content .service-icon {
        margin-bottom: 0;
        margin-right: 25px;
        flex-shrink: 0;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 15px;
        text-align: left;
    }

    .menu-toggle {
        display: flex;
        order: 2;
    }

    .services-content .service-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .services-content .service-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: rgba(26, 54, 93, 0.98);
        border-radius: 10px;
        padding: 15px 0;
        margin-top: 10px;
        order: 3;
    }

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

    .nav-links li {
        margin-left: 0;
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 12px 20px;
        font-size: 16px;
        border-radius: 0;
    }

    .nav-links a:hover,
    .nav-links a.active {
        background-color: rgba(255, 149, 0, 0.3);
    }

    .contact-info {
        display: none;
    }

    .banner {
        height: 450px;
    }

    .slide-content {
        padding: 30px 25px;
        max-width: 95%;
    }

    .slide-content h2 {
        font-size: 26px;
        margin-bottom: 18px;
        line-height: 1.4;
        letter-spacing: 1px;
    }

    .slide-content p {
        font-size: 16px;
        margin-bottom: 28px;
        line-height: 1.7;
    }

    .advantages h2,
    .core-services h2,
    .call-to-action h2,
    .page-content h2 {
        font-size: 28px;
    }

    .service-tagline {
        font-size: 16px;
        padding: 15px 25px;
    }

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

    .btn {
        width: 250px;
        text-align: center;
    }

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

    .process-steps::before {
        display: none;
    }

    .process-step {
        padding: 35px 15px 25px;
    }

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

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

    .about-content,
    .technology-content,
    .contact-info {
        padding: 30px 15px;
    }

    .contact-content {
        padding: 0 15px;
    }

    .company-info {
        padding: 30px 20px;
    }

    .company-info h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .company-info p {
        font-size: 15px;
        margin-bottom: 12px;
        padding: 12px 0;
    }

    .company-info strong {
        min-width: 100px;
        display: block;
    }

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

    .footer-info h3::after,
    .footer-links h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .banner {
        height: 400px;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .slide-content {
        padding: 25px 0;
        max-width: 100%;
    }

    .slide-content h2 {
        font-size: 22px;
        margin-bottom: 15px;
        line-height: 1.5;
        letter-spacing: 0.5px;
    }

    .slide-content p {
        font-size: 15px;
        margin-bottom: 25px;
        line-height: 1.7;
    }

    .advantage-icon {
        width: 90px;
        height: 90px;
    }

    .advantage-item {
        padding: 30px 20px;
    }

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

    .process-step {
        padding: 30px 20px;
    }

    .case-content {
        padding: 20px;
    }

    .case-content h3 {
        font-size: 18px;
    }

    .contact-content {
        padding: 0 10px;
    }

    .company-info {
        padding: 25px 15px;
        border-radius: 15px;
    }

    .company-info h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .company-info p {
        font-size: 14px;
        margin-bottom: 10px;
        padding: 10px 0;
        line-height: 1.6;
    }

    .company-info strong {
        min-width: 80px;
        font-size: 13px;
    }
}

/* 动画 */
@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.advantage-icon svg {
    animation: pulse 2s infinite;
}