:root {
    /* 主色调 - 绿色系 */
    --primary-green: rgb(56,138,57);          /* 主绿色 */
    --primary-green-dark: rgb(46,115,47);     /* 深绿色 */
    --primary-green-light: rgb(76,158,77);    /* 浅绿色 */
    --accent-blue: rgb(26,44,107);            /* 强调蓝色 - 仅用于导航和标题 */
    --accent-blue-light: rgb(36,54,117);      /* 浅强调蓝色 - 仅用于导航和标题 */

    /* 深色系 */
    --dark-navy: rgb(26,44,107);              /* 使用提供的深蓝色 */
    --text-dark: #222;
    --text-medium: #555;
    --text-light: #666;

    /* 白色系 */
    --white: #fff;
    --white-pure: #ffffff;
    --background-light: #f8faf8;              /* 微绿色背景 */
    --background-gray: #f1f5f1;               /* 微绿色灰背景 */

    /* 透明色 */
    --white-95: rgba(255,255,255,0.95);
    --white-80: rgba(255,255,255,0.8);
    --white-10: rgba(255,255,255,0.1);
    --black-70: rgba(0,0,0,0.7);
    --black-15: rgba(0,0,0,0.15);
    --black-10: rgba(0,0,0,0.1);
    --black-08: rgba(0,0,0,0.08);
    --navy-95: rgba(46,115,47,0.95);       /* 使用新的深蓝色 */
    --navy-90: rgba(46,115,47, 0.9);
    --green-30: rgba(56, 138, 57, 0.3);       /* 绿色透明 */
    --green-10: rgba(56, 138, 57, 0.1);       /* 浅绿色透明 */
    --green-light-30: rgba(76, 158, 77, 0.3); /* 浅绿色透明 */
    --green-light-10: rgba(76, 158, 77, 0.1); /* 更浅绿色透明 */

    /* 渐变色 - 绿色主题 */
    --gradient-primary: linear-gradient(135deg, var(--primary-green-light) 0%, var(--primary-green) 100%);
    --gradient-title: linear-gradient(45deg, var(--primary-green), var(--accent-blue));
    --gradient-card: linear-gradient(135deg, var(--white-pure) 0%, var(--background-light) 100%);
    --gradient-stat: linear-gradient(135deg, var(--primary-green), var(--primary-green-dark));
    --gradient-tech: linear-gradient(135deg, var(--primary-green-light) 0%, var(--primary-green) 100%);
    --gradient-partner: linear-gradient(135deg, var(--primary-green-light) 0%, var(--primary-green-dark) 100%);
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: var(--gradient-primary);
    color: var(--text-dark);
    line-height: 1.6;
}
header {
    color: var(--white);
    padding: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.banner { position: relative; background-color: transparent }
.banner-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    filter: brightness(0.7);
    display: inline;
}
.banner-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}
.banner-text h1 {
    margin: 0;
    font-size: 3.5em;
    font-weight: 700;
    background: var(--gradient-title);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.banner-text p {
    margin: 15px 0 0 0;
    font-size: 1.4em;
    font-weight: 300;
    text-shadow: 1px 1px 2px var(--black-70);
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
section {
    background: var(--white-95);
    border-radius: 12px;
    box-shadow: 0 8px 32px var(--black-10);
    padding: 40px;
    margin: 40px 0;
    backdrop-filter: blur(10px);
}
h2 {
    color: var(--dark-navy);
    margin-top: 0;
    font-size: 2.2em;
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}
h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-title);
    border-radius: 2px;
}
.intro-text {
    font-size: 1.1em;
    text-align: center;
    color: var(--text-medium);
    margin-bottom: 30px;
    padding: 20px;
    background: var(--background-light);
    border-radius: 8px;
    border-left: 4px solid var(--primary-green);
}
.section-img-wrap {
    text-align: center;
    margin: 30px 0;
}
.section-img {
    max-width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--black-15);
}
.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin: 30px 0;
}
.card {
    background: var(--gradient-card);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 8px 24px var(--black-08);
    border: 1px solid var(--green-10);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--black-15);
    border-color: var(--green-30);
}
.card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-title);
}
.card h3 {
    margin-top: 0;
    font-size: 1.3em;
    color: var(--dark-navy);
    font-weight: 600;
    margin-bottom: 12px;
}
.card p {
    margin: 0;
    font-size: 0.95em;
    color: var(--text-light);
    line-height: 1.6;
}
.tech-highlight {
    background: var(--gradient-tech);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
    display: inline-block;
    margin-top: 12px;
}
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
    text-align: center;
}
.stat-item {
    background: var(--gradient-stat);
    color: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--green-30);
}
.stat-number {
    font-size: 2em;
    font-weight: bold;
    display: block;
}
.footer {
    text-align: center;
    color: var(--white-80);
    padding: 30px 0;
    font-size: 0.95em;
    background: var(--navy-90);
}
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--navy-95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 10px var(--black-10);
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.navbar-brand {
    color: var(--white);
    font-size: 1.4em;
    font-weight: 700;
    text-decoration: none;
}
.navbar-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 20px;
}
.navbar-nav a {
    color: var(--white-80);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 0.9em;
}
.navbar-nav a:hover ,.navbar-nav a.active{
    color: var(--white);
    background: var(--white-10);
    transform: translateY(-2px);
}
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5em;
    cursor: pointer;
}
body {
    padding-top: 70px;
}
@media (max-width: 768px) {
    .container { padding: 0 15px; }
    section { padding: 20px; margin: 20px 0; }
    .banner-text h1 { font-size: 2.5em; }
    .banner-text p { font-size: 1.1em; }
    h2 { font-size: 1.8em; }
    .card-container { grid-template-columns: 1fr; }
    .stats-container { grid-template-columns: 1fr; }
    .partners-container { grid-template-columns: 1fr; }
    .navbar .container {
        flex-direction: column;
        gap: 15px;
    }
    .navbar-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    .navbar {
        padding: 10px 0;
    }
    body {
        padding-top: 80px;
    }
}
.partners-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.partner-card {
    background: var(--background-gray);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    box-shadow: 0 4px 12px var(--black-10);
    transition: transform 0.3s;
}
.partner-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--black-15);
}
.partner-tag {
    display: inline-block;
    margin-top: 8px;
    padding: 4px 12px;
    border-radius: 16px;
    background: var(--gradient-title);
    color: white;
    font-size: 0.75em;
    font-weight: 500;
}
/* 平滑滚动效果 */
html {
    scroll-behavior: smooth;
}
/* 修正导航栏覆盖内容的问题 */
section {
    scroll-margin-top: 80px;
}
/* 设备图片样式 */
.equipment-image-wrap {
    text-align: center;
    margin-bottom: 16px;
    height: 160px;
    overflow: hidden;
    border-radius: 8px;
    background: var(--background-light);
    display: flex;
    align-items: center;
    justify-content: center;
}
.equipment-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.equipment-image-wrap:hover .equipment-img {
    transform: scale(1.05);
}

/* 联系我们模块样式 */
#contact {
    background: var(--white-95);
    border-radius: 12px;
    box-shadow: 0 8px 32px var(--black-10);
    padding: 40px;
    margin: 40px 0;
    backdrop-filter: blur(10px);
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.contact-item {
    background: var(--gradient-card);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 24px var(--black-08);
    border: 1px solid var(--green-10);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--black-15);
    border-color: var(--green-30);
}

.contact-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-title);
}

.contact-icon {
    font-size: 2.5em;
    margin-bottom: 15px;
    opacity: 0.8;
}

.contact-info h3 {
    margin: 0 0 10px 0;
    font-size: 1.3em;
    color: var(--dark-navy);
    font-weight: 600;
}

.contact-info p {
    margin: 0;
    font-size: 1.1em;
    color: var(--text-light);
    line-height: 1.6;
    font-weight: 500;
}
.service-mode-container {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 20px;
}
.service-mode-item {
    flex: 1;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 24px;
    text-align: center;
}
.service-mode-icon {
    font-size: 2.5em;
    margin-bottom: 16px;
}
.service-mode-icon .iconfont {
    font-size: 80px;
    color: #666;
}