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

:root {
    /* ============================================
       颜色系统 - 精简后的变量
       ============================================ */
    /* 主色调 */
    --primary: #0080ff;
    --primary-dark: #0066cc;
    --primary-light: #3399ff;
    --accent: #00c8ff;

    /* 文字颜色 */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #7a7a8a;

    /* 背景色 */
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gray: #f1f5f9;
    --border-color: rgba(0, 128, 255, 0.15);
    --border-light: #e2e8f0;

    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);

    /* ============================================
       阴影系统 - 精简为4级
       ============================================ */
    --shadow-sm: 0 2px 8px rgba(0, 128, 255, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 128, 255, 0.1);
    --shadow-lg: 0 8px 40px rgba(0, 128, 255, 0.15);
    --shadow-glow: 0 0 20px rgba(0, 128, 255, 0.25);

    /* ============================================
       装饰背景
       ============================================ */
    --bg-pattern-dots: radial-gradient(circle, rgba(0, 128, 255, 0.08) 1px, transparent 1px);

    /* ============================================
       过渡动画
       ============================================ */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    --transition-spring: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

    /* ============================================
       响应式断点变量（仅用于参考）
       实际断点在文件末尾集中管理
       ============================================ */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: #ffffff;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

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

/* ============================================
   共享基础类 - 提高代码复用性
   ============================================ */

/* 图标容器基础类 */
.icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 16px;
    color: white;
    transition: var(--transition-spring);
}

.icon-box-sm {
    width: 48px;
    height: 48px;
    font-size: 18px;
    border-radius: 12px;
}

.icon-box-md {
    width: 64px;
    height: 64px;
    font-size: 24px;
}

.icon-box-lg {
    width: 80px;
    height: 80px;
    font-size: 32px;
    border-radius: 20px;
}

/* 卡片基础样式 */
.card-base {
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card-base:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
    border: 1px solid var(--primary);
}

/* Section基础样式 */
.section-base {
    padding-bottom: 50px;
}

/* 按钮基础样式 */
.btn-base {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: none;
    padding: 0 20px;
    transition: var(--transition);
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 1);
    box-shadow: var(--shadow-md);
}

/* 主导航栏隐藏状态 */
.navbar.hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 54px;
    position: relative;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 0;
}

.logo img {
    height: 34px;
    transition: var(--transition);
}

.logo:hover img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    list-style: none;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-width: 94px;
    height: 54px;
    padding: 0 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-item > a i {
    font-size: 12px;
    transition: var(--transition);
}

.nav-item:hover > a,
.nav-item.active > a {
    color: var(--text-primary);
}

.nav-item:hover > a i {
    transform: rotate(180deg);
}

.nav-item > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    height: 3px;
    background: var(--gradient-primary);
    transition: var(--transition);
    opacity: 0;
}

.nav-item:hover > a::after,
.nav-item.active > a::after {
    opacity: 1;
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
}

/* 平台下拉菜单 */
.platform-dropdown {
    min-width: 400px;
}

.platform-dropdown .dropdown-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid transparent;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--bg-gray);
    transform: translateX(8px);
    border-color: var(--border-color);
}

.dropdown-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 12px;
    font-size: 20px;
    color: #ffffff;
    box-shadow: var(--shadow-blue);
}

.dropdown-text h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.dropdown-text p {
    font-size: 13px;
    color: var(--text-muted);
}

/* 解决方案下拉菜单 */
.solution-dropdown {
    left: 50%;
    transform: translateX(-50%);
    min-width: 1000px;
    max-width: 1200px;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.solution-column {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.solution-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.solution-column a {
    padding: 10px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: var(--transition);
}

.solution-column a:hover {
    background: var(--bg-gray);
    color: var(--primary);
    transform: translateX(4px);
}

/* 导航按钮 */
.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-btn {
    padding: 12px 28px;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border: none;
    border-radius: 30px;
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-blue);
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue-lg);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Banner */
.hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 700px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    margin-top: -54px;
    padding-top: 54px;
    padding-bottom: 0px !important;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

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

.banner-slide.active {
    opacity: 1;
    visibility: visible;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 左右渐变遮罩，中间透亮显示图片 */
    background: linear-gradient(90deg,
        rgba(248, 250, 252, 0.8) 0%,
        rgba(248, 250, 252, 0.4) 10%,
        rgba(248, 250, 252, 0.1) 20%,
        transparent 35%,
        transparent 65%,
        rgba(248, 250, 252, 0.1) 80%,
        rgba(248, 250, 252, 0.4) 90%,
        rgba(248, 250, 252, 0.8) 100%
    );
}

/* 底部遮罩用于文字区域 */
.banner-overlay::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(0deg,
        rgba(248, 250, 252, 0.8) 0%,
        rgba(248, 250, 252, 0.4) 20%,
        rgba(248, 250, 252, 0.1) 50%,
        transparent 100%
    );
    pointer-events: none;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    max-width: 95vw;
    padding: 0 40px;
    white-space: nowrap;
}

.banner-content h1 {
    font-size: clamp(28px, 6vw, 72px);
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #1a1a2e 0%, #0080ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease;
    letter-spacing: 2px;
    white-space: nowrap;
}

.banner-content h2 {
    font-size: clamp(14px, 2.5vw, 32px);
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--primary);
    animation: fadeInUp 0.8s ease 0.2s both;
    white-space: nowrap;
}

.banner-content p {
    font-size: clamp(12px, 1.6vw, 20px);
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.4s both;
    white-space: nowrap;
}

.banner-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 40px;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 50px;
    color: white;
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-blue-lg);
    animation: fadeInUp 0.8s ease 0.6s both;
}

.banner-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 128, 255, 0.4);
    background: linear-gradient(135deg, #0090ff 0%, #00d8ff 100%);
}

.banner-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 20;
}

.indicator {
    width: 40px;
    height: 4px;
    background: rgba(0, 128, 255, 0.2);
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    width: 60px;
    background: var(--gradient-primary);
}

/* Banner暂停按钮 */
.banner-pause-btn {
    position: absolute;
    bottom: 40px;
    right: 40px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-light);
    border-radius: 50%;
    color: var(--primary);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    z-index: 20;
    box-shadow: var(--shadow-sm);
}

.banner-pause-btn:hover {
    background: var(--primary);
    color: #fff;
    transform: scale(1.1);
}

.banner-pause-btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.banner-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 20;
    pointer-events: none;
}

.arrow {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 50%;
    color: var(--primary);
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition);
    pointer-events: auto;
    box-shadow: var(--shadow-md);
}

.arrow:hover {
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-color: transparent;
    color: #ffffff;
    transform: scale(1.1);
}

/* Section通用样式 */
section {
    padding-bottom: 50px;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
    padding-top: 30px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary-dark);
    letter-spacing: 0;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* 公司框架图 */
.company-framework {
    background: var(--bg-light);
    padding-top: 0;
}

.framework-image {
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    position: relative;
    background: #ffffff;
}

.framework-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
    position: relative;
    z-index: 0;
    object-fit: contain;
}

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

/* 三大平台 */
.platforms {
    background: #ffffff;
}

.platform-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.platform-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 24px;
    padding: 40px;
    cursor: pointer;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.platform-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0080ff, #00c8ff, #00e5ff);
    transform: scaleX(0);
    transition: var(--transition);
}

.platform-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(0, 128, 255, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.platform-card:hover {
    background: var(--bg-light);
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue-lg);
    border-color: var(--primary);
}

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

.platform-card:hover::after {
    opacity: 1;
}

.card-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 20px;
    font-size: 36px;
    margin-bottom: 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-blue);
    color: #ffffff;
}

.platform-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-blue-lg);
}

.platform-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.platform-card h4 {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 16px;
}

.platform-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.card-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 500;
}

.card-link i {
    transition: var(--transition);
}

.platform-card:hover .card-link i {
    transform: translateX(4px);
}

/* 六大事业部 */
.departments {
    background: var(--bg-light);
}

.department-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.department-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
    height: 340px;
    display: flex;
    flex-direction: column;
}

.department-card:hover {
    background: #ffffff;
    transform: translateY(-4px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

.dept-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: var(--bg-gray);
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}

.dept-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 12px;
    font-size: 22px;
    color: #ffffff;
    box-shadow: var(--shadow-blue);
}

.dept-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.dept-cases {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    justify-content: center;
    overflow: hidden;
}

.case-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-secondary);
    transition: var(--transition);
    flex-shrink: 0;
}

.case-item:hover {
    background: var(--bg-gray);
    color: var(--primary);
    padding-left: 18px;
}

.case-item i {
    font-size: 12px;
    opacity: 0;
    transition: var(--transition);
    color: var(--primary);
}

.case-item:hover i {
    opacity: 1;
    transform: translateX(4px);
}

/* 科研合作伙伴 - 纯白简约风格 */
.partners {
    background: #ffffff;
    padding-bottom: 50px;
}

.partner-slider {
    position: relative;
    overflow: hidden;
    min-height: 380px;
}

.partner-track {
    display: flex;
    transition: transform 0.6s ease;
    align-items: stretch;
    width: 100%;
}

.partner-card {
    width: 100%;
    min-width: 100%;
    flex-shrink: 0;
    display: flex;
    gap: 50px;
    padding: 50px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    transition: var(--transition);
    box-sizing: border-box;
}

.partner-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-blue);
}

.partner-image {
    flex: 0 0 420px;
    height: 280px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(0, 128, 255, 0.1);
    transition: var(--transition);
}

.partner-card:hover .partner-image {
    border-color: rgba(0, 128, 255, 0.3);
}

.partner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.partner-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-right: 20px;
}

.partner-content h3 {
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 16px;
}

.partner-content h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.partner-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
}

.partner-content .highlight {
    color: var(--primary);
    font-weight: 500;
}

/* 合作伙伴指示器 */
.partner-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.partner-indicators .indicator-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-light);
    cursor: pointer;
    transition: var(--transition);
}

.partner-indicators .indicator-dot:hover {
    background: rgba(0, 128, 255, 0.4);
}

.partner-indicators .indicator-dot.active {
    background: var(--primary);
    width: 28px;
    border-radius: 5px;
}

/* 合作企业 */
.cooperate-companies {
    background: var(--bg-light);
    padding-bottom: 50px;
}

.company-scroll {
    /* overflow: hidden; */
    position: relative;
}

.company-track {
    display: flex;
    animation: scroll 30s linear infinite;
}

.company-item {
    flex: 0 0 200px;
    height: 100px;
    margin: 0 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.company-item:hover {
    background: #ffffff;
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-blue);
}

.company-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(30%);
    opacity: 0.85;
    transition: var(--transition);
}

.company-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 页脚 */
.footer {
    background: var(--bg-gray);
    border-top: 1px solid var(--border-light);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

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

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ====== 联系我们模态框 ====== */
.contact-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.contact-modal.active {
    opacity: 1;
    visibility: visible;
}

.contact-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(8px);
}

.contact-modal-content {
    position: relative;
    background: var(--bg-white);
    border-radius: 20px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.2);
    max-width: 520px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-modal.active .contact-modal-content {
    transform: scale(1) translateY(0);
}

.contact-modal-header {
    position: relative;
    padding: 30px 30px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
}

.contact-modal-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-modal-header p {
    font-size: 14px;
    color: var(--text-muted);
}

.contact-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.contact-modal-close:hover {
    background: var(--bg-gray);
    transform: rotate(90deg);
}

.contact-modal-close i {
    font-size: 16px;
    color: var(--text-secondary);
}

.contact-modal-body {
    padding: 30px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
}

.contact-info-item:hover {
    background: var(--bg-gray);
    transform: translateX(4px);
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-icon i {
    font-size: 20px;
    color: #fff;
}

.contact-info-content {
    flex: 1;
}

.contact-info-content h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-info-content p {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-info-arrow {
    width: 32px;
    height: 32px;
    background: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.contact-info-item:hover .contact-info-arrow {
    opacity: 1;
}

.contact-info-arrow i {
    font-size: 12px;
    color: var(--primary);
}

.contact-qrcode {
    text-align: center;
    padding: 24px;
    background: var(--bg-light);
    border-radius: 16px;
}

.contact-qrcode h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.contact-qrcode-img {
    width: 140px;
    height: 140px;
    background: var(--bg-white);
    border-radius: 12px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border-color);
}

.contact-qrcode-img img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}

.contact-qrcode-img i {
    font-size: 48px;
    color: var(--border-color);
}

.contact-qrcode p {
    font-size: 13px;
    color: var(--text-muted);
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
    .solution-dropdown {
        min-width: 800px;
    }

    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .platform-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .department-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ====== 平台页面样式 ====== */
.platform-hero {
    position: relative;
    height: 40vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 54px;
}

.platform-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.platform-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.platform-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.65) 0%, rgba(248, 250, 252, 0.55) 100%);
}

.platform-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 128, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(0, 200, 255, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.platform-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 60px 40px 30px;
}

.platform-badge {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: var(--shadow-blue);
}

.platform-hero-content h1 {
    font-size: clamp(19px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #1a1a2e 0%, #0080ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    white-space: nowrap;
}

.platform-hero-content h2 {
    font-size: clamp(14px, 2.5vw, 32px);
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--primary);
    white-space: nowrap;
}

.platform-hero-content p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 页面导航条 */
.page-nav {
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 54px;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    text-align: center;
}

/* page-nav后面紧跟的section清除顶部间隔 */
.page-nav + section {
    padding-top: 60px;
}

.page-nav-inner {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0;
}

.page-nav-list {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    list-style: none;
}

.page-nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 288px;
    height: 64px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    transition: var(--transition);
}

.page-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    opacity: 0;
    transition: var(--transition);
}

.page-nav-link:hover {
    color: var(--text-primary);
}

.page-nav-link:hover::after,
.page-nav-link.active::after {
    opacity: 1;
}

.page-nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* 当主导航隐藏时，页面级导航顶上去 */
.page-nav.navbar-hidden {
    top: 0;
}

@media (max-width: 1200px) {
    .page-nav-link {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .page-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        top: 60px;
    }

    .page-nav-list {
        justify-content: flex-start;
        padding: 0;
        gap: 0;
    }

    .page-nav-link {
        width: auto;
        min-width: 140px;
        padding: 0 24px;
        height: 56px;
        font-size: 14px;
        white-space: nowrap;
    }
}

.platform-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 50px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue-lg);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: transparent;
    border: 2px solid var(--primary);
    border-radius: 50px;
    color: var(--primary);
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--primary);
    color: #ffffff;
}

/* 平台简介 */
.platform-intro {
    background: #ffffff;
    padding-bottom: 50px;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 80px;
    align-items: center;
}

.intro-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

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

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: 16px;
    border: 1px solid var(--border-light);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
}

.intro-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-card {
    width: 300px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 30px;
    font-size: 120px;
    color: #ffffff;
    box-shadow: var(--shadow-blue-lg);
}

/* 核心功能 */
.platform-features {
    background: var(--bg-light);
    padding-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #0080ff, #00c8ff, #00e5ff);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    background: #ffffff;
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 16px;
    font-size: 28px;
    color: #ffffff;
    margin-bottom: 24px;
    box-shadow: var(--shadow-blue);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 技术优势 */
.platform-advantages {
    background: #ffffff;
    padding-bottom: 50px;
}

.advantages-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.advantage-item {
    display: flex;
    gap: 24px;
    padding: 30px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    transition: var(--transition);
}

.advantage-item:hover {
    background: var(--bg-gray);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.advantage-icon {
    flex: 0 0 60px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 12px;
    font-size: 24px;
    color: #ffffff;
    box-shadow: var(--shadow-blue);
}

.advantage-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.advantage-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 应用场景 */
.platform-scenarios {
    background: var(--bg-light);
    padding-bottom: 50px;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.scenario-card {
    text-align: center;
    padding: 40px 30px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
}

.scenario-card:hover {
    background: #ffffff;
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

.scenario-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 20px;
    font-size: 32px;
    color: #ffffff;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-blue);
}

.scenario-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.scenario-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ====== 页面通用头部 ====== */
.page-hero {
    position: relative;
    height: 40vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.page-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4ff 50%, #ffffff 100%);
}

.page-hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 30% 40%, rgba(0, 128, 255, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(0, 200, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 20%, rgba(0, 128, 255, 0.06) 0%, transparent 40%);
}

.page-hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 128, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 128, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.page-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 60px 40px 30px;
}

.page-hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.page-hero-content p {
    font-size: 20px;
    color: var(--text-secondary);
}

/* ====== 关于我们页面 ====== */
.about-intro {
    margin-top: 54px;
    background: #ffffff;
    padding-bottom: 50px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

.about-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

/* 企业文化 */
.company-culture {
    background: var(--bg-light);
    padding-bottom: 50px;
}

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

.culture-card {
    text-align: center;
    padding: 40px 30px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
}

.culture-card:hover {
    background: #ffffff;
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

.culture-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 20px;
    font-size: 32px;
    color: #ffffff;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-blue);
}

.culture-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.culture-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 发展历程 */
.company-timeline {
    background: #ffffff;
    padding-bottom: 50px;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #0080ff 0%, #00c8ff 100%);
}

.timeline-item {
    position: relative;
    padding-bottom: 50px;
    padding-left: 40px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -25px;
    top: 0;
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 50%;
    box-shadow: var(--shadow-blue);
}

.timeline-content {
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 24px;
}

.timeline-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 15px;
    color: var(--text-secondary);
}

/* 联系我们 */
.contact-section {
    background: var(--bg-light);
    padding-bottom: 50px;
}

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

.contact-card {
    text-align: center;
    padding: 40px 30px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
}

.contact-card:hover {
    background: #ffffff;
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

.contact-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 50%;
    font-size: 28px;
    color: #ffffff;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-blue);
}

.contact-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.contact-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ====== 资质荣誉页面 ====== */
.honor-section {
    background: #ffffff;
    padding-bottom: 50px;
}

.honor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* 资质大图区域 - 横版证书 */
.honor-grid-large {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

/* 资质小图区域 - 竖版证书 */
.honor-grid-small {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-card {
    text-align: center;
    padding: 50px 40px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
}

.honor-card:hover {
    background: #ffffff;
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue-lg);
    border-color: var(--primary);
}

.honor-icon {
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 50%;
    font-size: 36px;
    color: #ffffff;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-blue);
}

.honor-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.honor-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 软件著作权 */
.copyright-section {
    background: var(--bg-light);
    padding-bottom: 50px;
}

.copyright-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.copyright-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.copyright-item:hover {
    background: var(--bg-light);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.copyright-icon {
    flex: 0 0 50px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 12px;
    font-size: 20px;
    color: #ffffff;
    box-shadow: var(--shadow-blue);
}

.copyright-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.copyright-content p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ====== 案例详情页 ====== */
.case-hero {
    position: relative;
    height: 40vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.case-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.case-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.case-hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.65) 0%, rgba(248, 250, 252, 0.55) 100%);
    z-index: 1;
}

.case-hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 128, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 200, 255, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 2;
}

.case-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 60px 40px 30px;
    max-width: 1500px;
}

.case-badge {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
    box-shadow: var(--shadow-blue);
}

.case-hero-content h1 {
    font-size: clamp(19px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #1a1a2e 0%, #0080ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    white-space: nowrap;
}

.case-hero-content p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* 案例详情 */
.case-detail {
    background: #ffffff;
    padding-bottom: 50px;
}

.detail-section {
    margin-bottom: 60px;
}

.detail-section:last-child {
    margin-bottom: 0;
}

.detail-section h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 24px;
    padding-left: 20px;
    border-left: 4px solid var(--primary);
    color: var(--text-primary);
}

.detail-section p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.detail-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.detail-feature {
    padding: 24px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.detail-feature i {
    font-size: 24px;
    color: var(--primary);
}

.detail-feature span {
    font-size: 15px;
    color: var(--text-primary);
}

/* 响应式 - 平台页面 */
@media (max-width: 992px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .intro-image {
        order: -1;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-list {
        grid-template-columns: 1fr;
    }

    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .honor-grid-large {
        grid-template-columns: 1fr;
    }

    .honor-grid-small {
        grid-template-columns: repeat(3, 1fr);
    }

    .copyright-list {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .platform-hero {
        min-height: 320px;
    }

    .platform-hero-content {
        padding: 40px 20px 20px;
    }

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

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

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

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

    .intro-stats {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 36px;
    }

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

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

    .honor-grid-large {
        grid-template-columns: 1fr;
    }

    .honor-grid-small {
        grid-template-columns: repeat(2, 1fr);
    }

    .page-hero {
        min-height: 320px;
    }

    .page-hero-content {
        padding: 40px 20px 20px;
    }

    .page-hero-content h1 {
        font-size: 32px;
    }

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

    .case-hero {
        min-height: 320px;
    }

    .case-hero-content {
        padding: 40px 20px 20px;
    }

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

@media (max-width: 992px) {
    .nav-left {
        gap: 20px;
    }

    .nav-item > a {
        min-width: 70px;
        padding: 0 10px;
    }

    .banner-content h1 {
        font-size: clamp(24px, 5vw, 48px);
    }

    .banner-content h2 {
        font-size: clamp(12px, 2vw, 24px);
    }

    .banner-content p {
        font-size: clamp(11px, 1.4vw, 18px);
    }

    .section-subtitle {
        font-size: 20px;
    }

    .solution-dropdown {
        min-width: 600px;
    }

    .partner-card {
        flex-direction: column;
        gap: 30px;
        padding: 30px;
    }

    .partner-image {
        flex: none;
        width: 100%;
        height: 200px;
    }

    .partner-content {
        padding-right: 0;
    }

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

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 54px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-light);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu .nav-item a {
        color: var(--text-primary);
    }

    .nav-menu .nav-item a:hover {
        color: var(--primary);
        background: rgba(0, 128, 255, 0.05);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-item {
        width: 100%;
    }

    .nav-item > a {
        height: auto;
        min-width: auto;
        padding: 16px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-item > a::after {
        display: none;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        min-width: auto;
        background: transparent;
        border: none;
        padding: 0 0 0 20px;
    }

    .nav-item:hover .dropdown-menu {
        display: block;
    }

    .solution-dropdown {
        min-width: auto;
    }

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

    .platform-cards {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .banner-content {
        padding: 0 20px;
    }

    .banner-content h1 {
        font-size: clamp(20px, 6vw, 32px);
        letter-spacing: 1px;
    }

    .banner-content h2 {
        font-size: clamp(11px, 3vw, 18px);
    }

    .banner-content p {
        font-size: clamp(10px, 2.5vw, 16px);
    }

    .container {
        padding: 0 20px;
    }

    .nav-right {
        display: none;
    }

    /* 移动端Banner高度优化 */
    .hero-banner {
        min-height: 500px;
    }

    /* 移动端Section内边距优化 */
    section,
    .section-base,
    .platform-intro,
    .platform-features,
    .platform-advantages {
        padding: 60px 0;
    }
}

/* ====== 平台页面新增样式 ====== */
.intro-content-full {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 40px;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
    border-radius: 16px;
    border-left: 4px solid var(--primary);
    box-shadow: 0 2px 12px rgba(0, 128, 255, 0.08);
}

.intro-content-full p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 2;
    margin: 0;
    text-align: justify;
}

.intro-content-full .highlight {
    color: var(--primary);
    font-weight: 600;
}

/* 项目简介卡片样式 */
.intro-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.intro-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-blue);
}

.intro-card-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
}

.intro-badge {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), #0080ff);
    border-radius: 16px;
    color: #fff;
    font-size: 28px;
}

.intro-card-title h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.intro-card-title p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.intro-card-body {
    margin-bottom: 24px;
}

.intro-card-body p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
    text-align: justify;
}

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

.intro-card-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.intro-feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 16px 12px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.intro-feature-item:hover {
    background: linear-gradient(135deg, rgba(0, 82, 147, 0.1), rgba(0, 128, 255, 0.1));
}

.intro-feature-item i {
    font-size: 22px;
    color: var(--primary);
}

.intro-feature-item span {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    font-weight: 500;
}

/* 响应式适配 */
@media (max-width: 992px) {
    .intro-card-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .intro-card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .intro-badge {
        width: 56px;
        height: 56px;
        font-size: 22px;
    }

    .intro-card-title h3 {
        font-size: 18px;
    }

    .intro-card-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 产品优势卡片 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.advantage-card {
    padding: 40px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

.advantage-card .advantage-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 16px;
    font-size: 28px;
    color: #ffffff;
    margin-bottom: 24px;
    box-shadow: var(--shadow-blue);
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 技术架构图 */
.platform-architecture {
    background: var(--bg-light);
    padding-bottom: 50px;
}

.architecture-image {
    max-width: 1200px;
    margin: 0 auto;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 8px 32px rgba(0, 128, 255, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 128, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.architecture-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-dark), #0080ff, #00b4d8);
    border-radius: 24px 24px 0 0;
}

.architecture-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

/* 核心功能 - 卡片式图文布局 */
.case-features {
    padding-bottom: 50px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.case-features .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.case-features .section-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a3a5c;
    position: relative;
    display: inline-block;
}

.case-features .section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #005293, #0080ff);
    border-radius: 2px;
}

/* 功能卡片容器 */
.feature-card {
    background: #ffffff;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 82, 147, 0.08);
    border: 1px solid rgba(0, 82, 147, 0.08);
    margin-bottom: 40px;
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 128, 255, 0.12);
    border-color: rgba(0, 128, 255, 0.2);
}

.feature-card:last-child {
    margin-bottom: 0;
}

/* 功能行布局 */
.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: stretch;
}

/* 奇数行：左文右图 */
.feature-row:nth-child(odd) .feature-text {
    order: 1;
}

.feature-row:nth-child(odd) .feature-image {
    order: 2;
}

/* 偶数行：右文左图 */
.feature-row:nth-child(even) .feature-text {
    order: 2;
}

.feature-row:nth-child(even) .feature-image {
    order: 1;
}

/* 文字区域 */
.feature-text {
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.feature-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #005293, #0080ff);
    border-radius: 4px 0 0 4px;
}

.feature-row:nth-child(even) .feature-text::before {
    left: auto;
    right: 0;
    border-radius: 0 4px 4px 0;
}

.feature-text h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #005293;
    display: flex;
    align-items: center;
    gap: 14px;
}

.feature-text h3 .feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #005293, #0080ff);
    border-radius: 12px;
    color: #fff;
    font-size: 20px;
    flex-shrink: 0;
}

.feature-text p {
    font-size: 16px;
    color: #5a7a9a;
    line-height: 1.9;
    margin: 0;
}

/* 图片区域 */
.feature-image {
    background: #f5f9ff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    min-height: 300px;
}

.feature-image img {
    width: 100%;
    height: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 12px;
    transition: transform 0.4s ease;
}

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

/* 兼容旧样式 */
.feature-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* 功能区块样式 - 用于视觉检测等页面 */
.feature-block {
    margin-bottom: 60px;
    padding: 32px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-radius: 20px;
    border: 1px solid rgba(0, 128, 255, 0.08);
    position: relative;
    overflow: hidden;
}

.feature-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-dark), #0080ff);
    border-radius: 4px 0 0 4px;
}

.feature-block:last-child {
    margin-bottom: 0;
}

.feature-block h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 28px;
    color: var(--primary-dark);
    padding-left: 16px;
}

.feature-block h3 i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), #0080ff);
    border-radius: 10px;
    color: #fff;
    font-size: 18px;
}

.feature-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid rgba(0, 128, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.feature-detail-item:hover {
    border-color: #0080ff;
    box-shadow: 0 4px 16px rgba(0, 128, 255, 0.12);
    transform: translateY(-2px);
}

.feature-detail-item::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    width: 3px;
    height: calc(100% - 40px);
    background: #0080ff;
    border-radius: 0 3px 3px 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-detail-item:hover::before {
    opacity: 1;
}

.feature-detail-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px;
    color: white;
    font-size: 20px;
}

.feature-detail-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-detail-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 简单文本格式样式 - 用于 case-expo-center 等页面 */
.feature-detail-item > strong {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.feature-detail-item > strong::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: linear-gradient(135deg, var(--primary-dark), #0080ff);
    border-radius: 50%;
    margin-right: 8px;
    vertical-align: middle;
}

.feature-detail-item:has(strong) {
    flex-direction: column;
    gap: 8px;
}

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

.about-content-full p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 20px;
    text-align: justify;
}

.about-content-full .highlight {
    color: var(--primary);
    font-weight: 600;
}

.platform-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 30px;
}

.platform-list li {
    padding: 12px 0;
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    border-bottom: 1px solid var(--border-light);
}

.platform-list li strong {
    color: var(--primary);
}

/* 价值观 */
.company-values {
    background: var(--bg-light);
    padding-bottom: 50px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.value-card {
    padding: 40px;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
}

.value-card .value-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0080ff 0%, #00c8ff 100%);
    border-radius: 20px;
    font-size: 32px;
    color: #ffffff;
    margin-bottom: 24px;
    box-shadow: var(--shadow-blue);
}

.value-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.value-card .value-slogan {
    font-size: 16px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.value-card .value-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 资质荣誉 - 图片平铺 */
.honor-item {
    background: linear-gradient(135deg, #fafbfc 0%, #ffffff 100%);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.5s ease;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    min-height: 200px;
}

.honor-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-blue);
    border-color: var(--primary);
    background: #ffffff;
}

.honor-item img {
    width: 100%;
    height: 100%;
    max-height: 300px;
    display: block;
    object-fit: contain;
    object-position: center;
    transition: transform 0.3s ease;
}

.honor-item:hover img {
    transform: scale(1.02);
}

/* 大图区域 - 横版证书 */
.honor-item-large {
    min-height: 280px;
    padding: 24px;
}

.honor-item-large img {
    max-height: 350px;
}

/* 专利板块 */

body:has(.case-hero) .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.patent-section {
    background: var(--bg-light);
    padding-bottom: 50px;
}

/* 案例页面核心功能 */
.case-core-function {
    margin-bottom: 60px;
}

.case-core-function h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--primary);
}

.case-core-function p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

/* 案例页面建设目标列表 */
.goal-list {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.goal-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.goal-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-blue);
    transform: translateY(-2px);
}

.goal-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 12px;
    color: #fff;
    font-size: 24px;
}

.goal-content {
    flex: 1;
}

.goal-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
}

.goal-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

.goal-content p + p {
    margin-top: 12px;
}

.goal-content p strong {
    color: var(--primary-dark);
    font-weight: 600;
}

/* 响应式：大屏幕双列布局 */
@media (min-width: 992px) {
    .goal-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 技术亮点列表 */
.tech-highlight-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.tech-highlight-item {
    padding: 24px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    transition: all 0.5s ease;
}

.tech-highlight-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.tech-highlight-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.tech-highlight-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 架构图容器 */
.case-architecture {
    padding: 80px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.case-architecture .section-header {
    text-align: center;
    margin-bottom: 40px;
}

.case-architecture .section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

/* 响应式补充 */
@media (max-width: 992px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .feature-row {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .feature-image {
        order: -1;
    }

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

    .tech-highlight-list {
        grid-template-columns: 1fr;
    }

    .feature-detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 响应式补充 - 移动端 */
@media (max-width: 576px) {
    .feature-detail-grid {
        grid-template-columns: 1fr;
    }

    .feature-detail-item {
        padding: 16px;
    }

    .feature-detail-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* ============================================
   Phase 1: 视觉设计增强样式
   ============================================ */

/* 装饰背景图案 */
.section-decorated {
    position: relative;
    overflow: hidden;
}

.section-decorated::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern-dots);
    background-size: 30px 30px;
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}

.section-decorated .container {
    position: relative;
    z-index: 1;
}

/* 渐变装饰背景 */
.bg-gradient-decorated {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 50%, #ffffff 100%);
    position: relative;
}

.bg-gradient-decorated::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background:
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(0, 128, 255, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 200, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

/* 装饰性几何图形 */
.deco-shape {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.deco-circle {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 128, 255, 0.05) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

.deco-ring {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 1px solid rgba(0, 128, 255, 0.1);
    animation: pulse-ring 4s ease-in-out infinite;
}

.deco-dots {
    width: 200px;
    height: 200px;
    background: var(--bg-pattern-dots);
    background-size: 20px 20px;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes pulse-ring {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.3; }
}

/* 增强的卡片动效 */
.platform-card,
.feature-card,
.culture-card,
.value-card,
.honor-card,
.contact-card,
.advantage-card,
.scenario-card {
    will-change: transform, box-shadow;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.platform-card:hover,
.feature-card:hover,
.culture-card:hover,
.value-card:hover,
.honor-card:hover,
.contact-card:hover,
.advantage-card:hover,
.scenario-card:hover {
    transform: translateY(-12px) scale(1.02);
}

/* 卡片光效边框 */
.card-glow-border {
    position: relative;
}

.card-glow-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity var(--transition);
    z-index: -1;
}

.card-glow-border:hover::before {
    opacity: 1;
}

/* 图标悬停增强效果 */
.card-icon,
.feature-icon,
.culture-icon,
.value-icon,
.contact-icon,
.honor-icon,
.advantage-icon,
.scenario-icon,
.dept-icon,
.dropdown-icon {
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    will-change: transform;
}

.platform-card:hover .card-icon,
.feature-card:hover .feature-icon,
.culture-card:hover .culture-icon,
.value-card:hover .value-icon,
.contact-card:hover .contact-icon,
.honor-card:hover .honor-icon,
.advantage-card:hover .advantage-icon,
.scenario-card:hover .scenario-icon {
    transform: scale(1.15) rotate(10deg);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Phase 2: 交互动效增强样式
   ============================================ */

/* 滚动进入动画 */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* 交错动画延迟 */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* 按钮波纹效果 */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10);
    opacity: 0;
    transition: transform 0.5s, opacity 0.5s;
}

.btn-ripple:active::after {
    transform: scale(0);
    opacity: 1;
    transition: 0s;
}

/* 按钮增强悬停效果 */
.contact-btn,
.banner-btn,
.btn-primary,
.btn-secondary {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-btn:hover,
.banner-btn:hover,
.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 128, 255, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-blue);
}

/* 按钮内光效果 */
.btn-shine {
    position: relative;
    overflow: hidden;
}

.btn-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

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

/* 页面过渡效果 */
.page-transition {
    animation: pageIn 0.5s ease forwards;
}

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

/* Section进入动画 */
section {
    opacity: 1;
}

.section-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Phase 3: 响应式优化增强
   ============================================ */

/* 大屏适配 (1920px+) */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }

    .section-title {
        font-size: 52px;
    }

    .section-subtitle {
        font-size: 22px;
    }

    .banner-content h1 {
        font-size: clamp(48px, 4.5vw, 84px);
    }

    .banner-content h2 {
        font-size: clamp(24px, 2vw, 38px);
    }

    .banner-content p {
        font-size: clamp(16px, 1.3vw, 24px);
    }

    .platform-card,
    .feature-card {
        padding: 50px;
    }

    .platform-card h3,
    .feature-card h3 {
        font-size: 26px;
    }

    .card-icon {
        width: 100px;
        height: 100px;
        font-size: 44px;
    }
}

/* 超大屏 (2560px+) */
@media (min-width: 2560px) {
    .container {
        max-width: 2000px;
    }

    .section-title {
        font-size: 32px;
    }

    .banner-content h1 {
        font-size: clamp(72px, 3.8vw, 100px);
    }

    .banner-content h2 {
        font-size: clamp(32px, 1.5vw, 42px);
    }

    .banner-content p {
        font-size: clamp(20px, 1vw, 28px);
    }
}

/* 移动端菜单动画优化 */
.nav-menu {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease,
                visibility 0.3s ease;
}

.nav-menu.active {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease;
}

/* 汉堡菜单动画增强 */
.hamburger span {
    transition: all 0.3s ease;
    transform-origin: center;
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Phase 4: 性能优化相关样式
   ============================================ */

/* GPU加速优化 */
.platform-card,
.feature-card,
.banner-slide,
.partner-card,
.company-item,
.department-card {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* 动画性能优化 */
@keyframes optimized-fadeInUp {
    0% {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    100% {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

/* 减少重绘 */
.optimized-animation {
    contain: layout style paint;
}

/* 图片加载占位 */
.img-placeholder {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-gray) 100%);
    position: relative;
    overflow: hidden;
}

.img-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}

/* 懒加载图片过渡 */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img[loading="lazy"].loaded,
img[loading="lazy"][src] {
    opacity: 1;
}

/* 平滑滚动优化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    }

    .platform-card,
    .feature-card,
    .department-card {
        border-width: 2px;
    }
}

/* ============================================
   导航栏找回交互优化
   ============================================ */

/* 导航栏隐藏时显示的顶部指示器 */
.navbar-trigger {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0080ff, #00c8ff);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, height 0.3s ease;
    cursor: pointer;
}

.navbar-trigger.visible {
    opacity: 1;
    pointer-events: auto;
}

.navbar-trigger:hover {
    height: 6px;
    background: linear-gradient(90deg, #0080ff, #00c8ff, #0080ff);
}

/* 鼠标悬停触发区域 */
.navbar-hover-zone {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    z-index: 998;
    pointer-events: auto;
}

/* ============================================
   联系我们模态框响应式
   ============================================ */
@media (max-width: 576px) {
    .contact-modal-content {
        width: 95%;
        margin: 10px;
        border-radius: 16px;
    }

    .contact-modal-header {
        padding: 24px 20px 16px;
    }

    .contact-modal-header h2 {
        font-size: 22px;
    }

    .contact-modal-close {
        top: 16px;
        right: 16px;
        width: 32px;
        height: 32px;
    }

    .contact-modal-body {
        padding: 20px;
    }

    .contact-info-item {
        padding: 14px 16px;
    }

    .contact-info-icon {
        width: 42px;
        height: 42px;
    }

    .contact-info-icon i {
        font-size: 18px;
    }

    .contact-info-content h4 {
        font-size: 13px;
    }

    .contact-info-content p {
        font-size: 15px;
    }

    .contact-qrcode {
        padding: 20px;
    }

    .contact-qrcode h4 {
        font-size: 15px;
    }

    .contact-qrcode-img {
        width: 120px;
        height: 120px;
    }
}

/* ============================================
   现代化时间线样式 - 发展历程
   ============================================ */

/* 时间线容器 */
.timeline-modern {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0 60px;
}

/* 垂直轴线 */
.timeline-modern::before {
    content: '';
    position: absolute;
    left: 100px;
    top: 0;
    bottom: 60px;
    width: 3px;
    background: linear-gradient(180deg, #4A90E2 0%, #6BA3E8 50%, #8BB8F0 100%);
    border-radius: 2px;
}

/* 时间线节点 */
.timeline-node {
    position: relative;
    display: flex;
    align-items: flex-start;
    margin-bottom: 32px;
    padding-left: 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-node.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-node:last-child {
    margin-bottom: 0;
}

/* 时间标记区域 */
.timeline-marker {
    position: relative;
    flex-shrink: 0;
    width: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-right: 24px;
}

/* 年份 */
.timeline-year {
    font-size: 28px;
    font-weight: 700;
    color: #4A90E2;
    letter-spacing: -0.5px;
    text-align: center;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(74, 144, 226, 0.15);
}

/* 时间点 */
.timeline-dot-modern {
    position: absolute;
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, #4A90E2 0%, #6BA3E8 100%);
    border-radius: 50%;
    box-shadow: 0 0 0 4px #fff, 0 0 0 6px rgba(74, 144, 226, 0.3);
    z-index: 2;
    transition: all 0.3s ease;
    left: 92px;
    top:15px;

}

.timeline-node:hover .timeline-dot-modern {
    transform: scale(1.3);
    box-shadow: 0 0 0 4px #fff, 0 0 0 8px rgba(74, 144, 226, 0.4), 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* 起点节点特殊样式 */
.timeline-node.origin .timeline-year {
    color: #2E7D32;
}

.timeline-node.origin .timeline-dot-modern {
    background: linear-gradient(135deg, #43A047 0%, #66BB6A 100%);
    box-shadow: 0 0 0 4px #fff, 0 0 0 6px rgba(67, 160, 71, 0.3);
}

.timeline-node.origin:hover .timeline-dot-modern {
    box-shadow: 0 0 0 4px #fff, 0 0 0 8px rgba(67, 160, 71, 0.4), 0 4px 12px rgba(67, 160, 71, 0.3);
}

/* 内容卡片 */
.timeline-card {
    flex: 1;
    background: #ffffff;
    border-radius: 16px;
    padding: 24px 28px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
    border: 1px solid #E8F0F8;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
    margin-left: 40px;
}

.timeline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #4A90E2, #6BA3E8);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.timeline-node:hover .timeline-card {
    transform: translateY(-4px) translateX(4px);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.15), 0 4px 12px rgba(0, 0, 0, 0.06);
    border-color: #4A90E2;
}

.timeline-node:hover .timeline-card::before {
    opacity: 1;
}

.timeline-node.origin .timeline-card::before {
    background: linear-gradient(180deg, #43A047, #66BB6A);
}

.timeline-node.origin:hover .timeline-card {
    border-color: #43A047;
    box-shadow: 0 8px 24px rgba(67, 160, 71, 0.15), 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* 卡片头部 */
.timeline-card-header {
    margin-bottom: 12px;
}

/* 标签 */
.timeline-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.timeline-badge.latest {
    background: linear-gradient(135deg, #4A90E2 0%, #6BA3E8 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.timeline-badge.origin {
    background: linear-gradient(135deg, #43A047 0%, #66BB6A 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(67, 160, 71, 0.3);
}

/* 成就列表 */
.timeline-achievements {
    list-style: none;
    padding: 0;
    margin: 0;
}

.timeline-achievements li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 15px;
    color: #4a4a5a;
    line-height: 1.6;
}

.timeline-achievements li:last-child {
    margin-bottom: 0;
}

.timeline-achievements li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: #4A90E2;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.timeline-node:hover .timeline-achievements li::before {
    transform: scale(1.3);
    box-shadow: 0 0 6px rgba(74, 144, 226, 0.5);
}

.timeline-node.origin .timeline-achievements li::before {
    background: #43A047;
}

/* 高亮文字 */
.highlight-text {
    color: #4A90E2;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.08) 0%, rgba(107, 163, 232, 0.08) 100%);
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.timeline-node:hover .highlight-text {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15) 0%, rgba(107, 163, 232, 0.15) 100%);
}

.timeline-node.origin .highlight-text {
    color: #43A047;
    background: linear-gradient(135deg, rgba(67, 160, 71, 0.08) 0%, rgba(102, 187, 106, 0.08) 100%);
}

.timeline-node.origin:hover .highlight-text {
    background: linear-gradient(135deg, rgba(67, 160, 71, 0.15) 0%, rgba(102, 187, 106, 0.15) 100%);
}

/* 交错动画延迟 */
.timeline-node:nth-child(1) { transition-delay: 0s; }
.timeline-node:nth-child(2) { transition-delay: 0.1s; }
.timeline-node:nth-child(3) { transition-delay: 0.2s; }
.timeline-node:nth-child(4) { transition-delay: 0.3s; }
.timeline-node:nth-child(5) { transition-delay: 0.4s; }
.timeline-node:nth-child(6) { transition-delay: 0.5s; }
.timeline-node:nth-child(7) { transition-delay: 0.6s; }

/* ============================================
   响应式设计 - 时间线
   ============================================ */

/* 平板设备 */
@media (max-width: 992px) {
    .timeline-modern::before {
        left: 80px;
    }

    .timeline-marker {
        width: 80px;
    }

    .timeline-year {
        font-size: 24px;
    }
}

/* 移动端 */
@media (max-width: 768px) {
    .timeline-modern {
        padding: 0 0 40px;
    }

    .timeline-modern::before {
        left: 24px;
    }

    .timeline-node {
        flex-direction: column;
        padding-left: 50px;
        margin-bottom: 24px;
    }

    .timeline-marker {
        position: absolute;
        left: 0;
        width: 50px;
        flex-direction: row;
        justify-content: flex-start;
        padding-right: 0;
        padding-bottom: 0;
    }

    .timeline-year {
        position: absolute;
        left: 50px;
        top: 0;
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 0;
        white-space: nowrap;
    }

    .timeline-dot-modern {
        position: absolute;
        left: 24px;
        transform: translateX(-50%);
        width: 14px;
        height: 14px;
    }

    .timeline-node:hover .timeline-dot-modern {
        transform: translateX(-50%) scale(1.3);
    }

    .timeline-card {
        margin-top: 32px;
        padding: 20px;
    }

    .timeline-card::before {
        width: 100%;
        height: 3px;
        top: 0;
        left: 0;
    }

    .timeline-node:hover .timeline-card {
        transform: translateY(-4px);
    }

    .timeline-achievements li {
        font-size: 14px;
    }

    .timeline-badge {
        font-size: 11px;
        padding: 3px 10px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .timeline-modern::before {
        left: 16px;
    }

    .timeline-node {
        padding-left: 40px;
    }

    .timeline-dot-modern {
        left: 16px;
        width: 12px;
        height: 12px;
    }

    .timeline-year {
        left: 40px;
        font-size: 16px;
    }

    .timeline-card {
        margin-top: 28px;
        padding: 16px;
        border-radius: 12px;
    }

    .timeline-achievements li {
        padding-left: 16px;
        font-size: 13px;
        margin-bottom: 8px;
    }

    .timeline-achievements li::before {
        width: 5px;
        height: 5px;
        top: 7px;
    }
}

/* 打印样式 */
@media print {
    .timeline-modern::before {
        background: #4A90E2;
    }

    .timeline-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}