:root {
    --color-bg: #ffffff;
    --color-text: #222222;
    --color-primary: #1e5aa8;
    /* 蓝 */
    --color-primary-2: #2d6bb7;
    /* 蓝-深 */
    --color-accent: #28a745;
    /* 绿 */
    --color-accent-2: #20c997;
    /* 绿-青 */
    --color-border: #e6e9ef;
    /* 细边框 */
    
    /* 背景颜色 */
    --color-bg-white: #ffffff;
    --color-bg-gray: #f8f9fa;
    
    /* 文字颜色 */
    --color-text-primary: #222222;
    --color-text-secondary: #666666;
    --color-text-muted: #888888;
    
    /* 间距 */
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    
    /* 网格间距 */
    --grid-gap-desktop: 30px;
    --grid-gap-mobile: 20px;
    
    /* 字体大小 */
    --font-size-small: 0.875rem;
    --font-size-body: 1rem;
    --font-size-h3: 1.25rem;
    --font-size-h2: 1.5rem;
    
    /* 字体粗细 */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    
    /* 过渡 */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

html,
body {
    background: var(--color-bg);
    color: var(--color-text);
}

/* 平滑滚动与锚点偏移，避免被固定导航栏遮挡 */
html {
    scroll-behavior: smooth;
}

section {
    scroll-margin-top: 90px;
}

/* 页面切换样式 */
.page-content {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.page-content.active {
    display: block;
    opacity: 1;
}

/* 解决方案和新闻概览区域的链接样式 */
.solution-link,
.news-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    margin-top: 15px;
    transition: color 0.3s ease;
}

.solution-link:hover,
.news-link:hover {
    color: var(--color-primary-2);
    text-decoration: none;
}

/* 详细页面解决方案特性列表 */
.solution-features {
    list-style: none;
    padding: 0;
    margin: 15px 0 0 0;
}

.solution-features li {
    color: #666;
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
    line-height: 1.5;
}

.solution-features li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1e5aa8;
    font-weight: bold;
}

/* 服务特性列表 */
.service-features {
    list-style: none;
    padding: 0;
    margin: 15px 0 0 0;
}

.service-features li {
    color: #666;
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
    line-height: 1.5;
}

.service-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* 案例标签样式 */
.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.case-tag {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 页面标题区域增强 */
.products-services-detail .section-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 40px;
    border: 1px solid #e0e0e0;
}

.solutions-detail .section-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 40px;
    border: 1px solid #e0e0e0;
}

.news-detail .section-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 40px;
    border: 1px solid #e0e0e0;
}

/* 首页概览区域的section-footer样式 */
.section-footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
}

/* 行业解决方案和技术解决方案样式 */
.industry-solutions,
.technical-solutions {
    padding: clamp(40px, 8vh, 80px) 0;
    background-color: white;
}

.industry-solutions {
    background-color: #f8f9fa;
    border-top: 1px solid var(--color-border);
}

/* 特色解决方案卡片 */
.solution-card.featured {
    border: 2px solid var(--color-primary);
    position: relative;
    background: linear-gradient(135deg, #fff, #f8f9fa);
}

.solution-card.featured::before {
    content: '推荐方案';
    position: absolute;
    top: -1px;
    right: -1px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
    color: white;
    padding: 4px 12px;
    font-size: 0.75rem;
    border-radius: 0 12px 0 12px;
    font-weight: 600;
}

/* 解决方案高亮标签 */
.solution-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 15px 0;
}

.highlight-tag {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* 客户案例信息 */
.solution-clients {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
}

.solution-clients small {
    color: #666;
    font-style: italic;
}

/* 解决方案优势区域 */
.solution-advantages {
    padding: clamp(50px, 10vh, 100px) 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-2));
    color: white;
}

.solution-advantages .section-header h2,
.solution-advantages .section-header p {
    color: white;
}

/* 解决方案优势网格 - 仅用于解决方案详情页 */
.solution-advantages .advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(260px, 1fr));
    gap: clamp(20px, 2vw, 40px);
    width: 90vw;
    max-width: 1400px;
    margin: 0 auto;
}

.solution-advantages .advantage-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.solution-advantages .advantage-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.solution-advantages .advantage-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.solution-advantages .advantage-item:hover .advantage-icon {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.solution-advantages .advantage-icon i {
    font-size: 2rem;
    color: white;
}

.solution-advantages .advantage-item h3 {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.solution-advantages .advantage-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin: 0;
}

/* 解决方案模态框样式 */
.solution-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.solution-modal-content {
    background-color: white;
    margin: 2% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.solution-modal-header {
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    color: white;
    padding: 30px;
    border-radius: 15px 15px 0 0;
    position: relative;
}

.solution-modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.solution-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.solution-modal-body {
    padding: 30px;
    line-height: 1.8;
}

.solution-modal-body h3 {
    color: #1e5aa8;
    font-size: 1.5rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e0e0e0;
}

.solution-modal-body h4 {
    color: #333;
    font-size: 1.2rem;
    margin: 25px 0 15px 0;
}

.solution-modal-body p {
    color: #666;
    margin-bottom: 15px;
}

.solution-modal-body ul {
    color: #666;
    margin: 15px 0;
    padding-left: 20px;
}

.solution-modal-body li {
    margin-bottom: 8px;
}

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

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

.container {
    width: 100%;
    max-width: min(1400px, 90vw);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 60px);
}

/* 顶部栏样式 */

/* 导航栏样式 - 改进的固定效果 */
.navbar {
    background-color: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid #eaeaea;
    position: fixed;
    top: 0;
    /* 顶部贴合，无顶部栏 */
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.25s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

.navbar.scrolled .logo .logo-text {
    font-size: clamp(17px, 1.9vw, 22px);
}

/* 为固定导航栏添加顶部间距 */
body {
    padding-top: 80px;
    /* 固定导航占位，无顶部栏 */
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: inherit;
}

.logo-mark {
    width: clamp(22px, 2.6vw, 45px);
    height: clamp(22px, 2.6vw, 45px);
    border-radius: 4px;
}

.logo-text {
    display: inline-flex;
    flex-direction: column;
    line-height: 1.1;
    font-weight: 700;
    color: #1e5aa8;
    letter-spacing: -0.5px;
    /* 略微缩小，避免两行并列时过于突兀 */
    font-size: clamp(16px, 1.8vw, 16px);
}

.logo .tagline {
    /* 与主名相同的样式与大小 */
    font-size: clamp(16px, 1.8vw, 16px);
    color: #1e5aa8;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.1;
    /* 堆叠对齐在左侧，避免过度右移 */
    margin-left: 0;
    margin-top: 2px;
}

/* 移动端/中屏隐藏副标题，保证主名称权重与空间 */
@media (max-width: 992px) {
    .logo .tagline {
        display: none;
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-menu li {
    position: relative;
    margin: 0 12px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 8px 16px;
    display: block;
    transition: all 0.3s ease, box-shadow 0.2s ease;
    font-size: 14px;
    border-radius: 6px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #1e5aa8;
    background-color: #f8f9fa;
    box-shadow: inset 0 -2px 0 rgba(30, 90, 168, 0.25);
}

/* 下拉菜单样式 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #ffffff;
    min-width: 220px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 8px 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

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

.dropdown-menu a {
    padding: 10px 20px;
    font-size: 13px;
    color: #666;
    border-radius: 0;
}

.dropdown-menu a:hover {
    background-color: #f5f7fb;
    color: #1e5aa8;
}

/* 移动端菜单切换 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.mobile-menu-toggle:hover {
    background-color: rgba(30, 90, 168, 0.1);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #1e5aa8;
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero轮播区域 */
.hero-amd-carousel {
    position: relative;
    min-height: 65vh;
    overflow: hidden;
    display: flex;
    align-items: center;
}

/* 背景层 */
.hero-background-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.35);
}

/* 内容层 */
.hero-content-layer {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 80px 0;
}

/* 主标题区域 */
.hero-header {
    text-align: left;
    margin-bottom: 60px;
    width: 100%;
    max-width: 100%;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.hero-description {
    font-size: 18px;
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 0;
}

/* 轮播容器 */
.hero-carousel-wrapper {
    position: relative;
}

/* removed .heroCarousel (no longer used) */

/* 轮播卡片样式 */
.carousel-card {
    background: white;
    border-radius: clamp(16px, 2vw, 24px);
    padding: 0;
    height: clamp(450px, 50vh, 600px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.12);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
    position: relative;
    /* 流式卡片宽度，保留大屏呼吸感 */
    width: min(96%, 80vw);
    max-width: 1200px;
    margin: 0 auto;
}

/* 卡片视觉区域 */
.card-visual {
    position: relative;
    height: clamp(180px, 20vh, 240px);
    background: linear-gradient(135deg, #1e5aa8 0%, #2d6bb7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 背景图支持：在 .card-visual 内放置 <img class="card-bg"> */
.card-visual .card-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    filter: saturate(1.05) contrast(0.95);
    z-index: 1;
}

/* 为首页轮播卡片补充背景图（简约、克制） */
/* removed heroCarousel nth-child backgrounds */

.card-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.card-icon {
    position: relative;
    z-index: 2;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.card-icon i {
    font-size: 40px;
    color: white;
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.9);
    color: #1e5aa8;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

/* 卡片内容区域 */
.card-content {
    padding: 40px;
    height: 350px;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    font-size: 26px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
    line-height: 1.3;
}

.card-content p {
    font-size: 16px;
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 24px;
    flex: 1;
}

/* 卡片统计数据 */
.card-stats {
    display: flex;
    gap: clamp(12px, 2vw, 24px);
    margin-bottom: clamp(15px, 2vh, 25px);
    padding: 16px;
    background: #f8f9fa;
    border-radius: 12px;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #1e5aa8;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 11px;
    color: #6c757d;
    font-weight: 500;
}

/* 功能标签 */
.card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-tag {
    background: #e3f2fd;
    color: #1565c0;
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 11px;
    font-weight: 500;
}

/* 技术网格 */
.card-tech-grid {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    padding: 12px 8px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.tech-item:hover {
    background: #e3f2fd;
    transform: translateY(-2px);
}

.tech-item i {
    font-size: 18px;
    color: #1e5aa8;
    margin-bottom: 6px;
}

.tech-item span {
    font-size: 10px;
    color: #6c757d;
    font-weight: 500;
    text-align: center;
}

/* 品牌标签 */
.card-brands {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.brand-tag {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 500;
}

/* 高亮项目 */
.card-highlights {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    padding: 16px;
    background: linear-gradient(135deg, #fff3e0 0%, #fce4ec 100%);
    border-radius: 12px;
}

.highlight-item {
    text-align: center;
    flex: 1;
}

.highlight-item strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: #d32f2f;
    margin-bottom: 4px;
}

.highlight-item span {
    font-size: 11px;
    color: #666;
    font-weight: 500;
}

/* 卡片链接 */
.card-link {
    display: inline-block;
    color: #1e5aa8;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    padding: 10px 20px;
    border: 2px solid #1e5aa8;
    border-radius: 25px;
    transition: all 0.3s ease;
    text-align: center;
    margin-top: auto;
}

.card-link:hover {
    background: #1e5aa8;
    color: white;
    transform: translateY(-2px);
}

/* 导航按钮 */
.carousel-navigation {
    position: absolute;
    top: 50%;
    left: -5vw;
    right: -5vw;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
}

.carousel-nav-btn {
    width: 3vw;
    height: 3vw;
    min-width: 40px;
    min-height: 40px;
    max-width: 60px;
    max-height: 60px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.carousel-nav-btn:hover {
    background: white;
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
}

.carousel-nav-btn i {
    font-size: clamp(14px, 1.2vw, 20px);
    color: #1e5aa8;
}

/* 分页指示器 */
.carousel-pagination {
    text-align: center;
    margin-top: 3vw;
}

.carousel-pagination .swiper-pagination {
    position: static;
}

.carousel-pagination .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(30, 90, 168, 0.3);
    opacity: 1;
    margin: 0 6px;
    transition: all 0.3s ease;
}

.carousel-pagination .swiper-pagination-bullet-active {
    background: #1e5aa8;
    transform: scale(1.3);
}


/* 轮播图去掉悬浮（仅移除位移/缩放） */
.hero-amd-carousel .carousel-nav-btn:hover,
.hero-amd-carousel .carousel-btn:hover,
.hero-amd-carousel .tech-item:hover,
.hero-amd-carousel .feature-highlight:hover,
.hero-amd-carousel .stat-item:hover,
.hero-amd-carousel .card-link:hover {
    transform: none !important;
}




/* 极简首屏样式 */
.hero-minimal {
    padding: 120px 0 100px;
    background: #ffffff;
}

.hero-minimal .hero-background-layer {
    display: none;
}

.hero-minimal .hero-carousel-wrapper {
    display: none;
}

.hero-minimal .hero-header {
    display: none;
}

.hero-minimal .hero-inner {
    width: 100%;
    max-width: 100%;
}

.hero-minimal .headline {
    font-size: 42px;
    font-weight: 600;
    color: #111;
    letter-spacing: -0.2px;
}

.hero-minimal .subhead {
    font-size: 18px;
    color: #555;
    margin-top: 12px;
}

.hero-minimal .cta-row {
    display: flex;
    gap: 14px;
    margin-top: 20px;
}

.btn.btn-outline {
    background: transparent;
    color: #222;
    border-color: #222;
}

.btn.btn-outline:hover {
    background: #222;
    color: #fff;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

/* 精简轮播中的功能点展示（首页更克制） */
.hero-carousel .slide-features {
    display: none !important;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: calc(100vh - 90px);
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-start;
    color: white;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

/* 背景渐变 */
.carousel-slide[data-bg="gradient1"] {
    background: linear-gradient(135deg, #1e5aa8 0%, #2d6bb7 50%, #3b7bc7 100%);
}

.carousel-slide[data-bg="gradient2"] {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #8e6cb8 100%);
}

.carousel-slide[data-bg="gradient3"] {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 50%, #4facfe 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 2fr 1fr;
    align-items: center;
    gap: 60px;
}

/* 文本动画 */
.animate-text {
    animation: slideInFromLeft 1s ease-out 0.3s both;
}

.animate-text-delay {
    animation: slideInFromLeft 1s ease-out 0.6s both;
}

.animate-buttons {
    animation: slideInFromLeft 1s ease-out 0.9s both;
}

@keyframes slideInFromLeft {
    0% {
        transform: translateX(-50px);
        opacity: 0;
    }

    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

.hero-text h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    line-height: 1.25;
}

.hero-text p {
    font-size: 1.125rem;
    margin-bottom: 24px;
    opacity: 0.85;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

/* 统计数据样式 */
.hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 30px 20px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-item p {
    font-size: 1rem;
    opacity: 0.9;
}

/* 特色功能展示 */
.hero-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.feature-highlight {
    background: rgba(255, 255, 255, 0.15);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.feature-highlight:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.25);
}

.feature-highlight i {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.feature-highlight h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-highlight p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* 技术图标展示 */
.hero-tech-icons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.tech-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 20px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.tech-icon:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.25);
}

.tech-icon i {
    font-size: 2rem;
    margin-bottom: 10px;
}

.tech-icon span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* 轮播控制按钮 */
.carousel-controls {
    position: absolute;
    top: 50%;
    left: 50px;
    right: 50px;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
}

.carousel-btn {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
    backdrop-filter: blur(10px);
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.carousel-btn:active {
    transform: scale(0.95);
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    transform: scale(1.2);
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.8);
}

/* 滚动提示 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    right: 50px;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    z-index: 10;
}

.scroll-arrow {
    margin-bottom: 5px;
    animation: bounce 2s infinite;
}

.scroll-arrow i {
    font-size: 1.2rem;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: clamp(8px, 1.2vh, 12px) clamp(16px, 2vw, 24px);
    border-radius: clamp(4px, 0.5vw, 8px);
    text-decoration: none;
    font-weight: 600;
    font-size: clamp(13px, 1.2vw, 16px);
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background-color: #1e5aa8;
    color: white;
    border-color: #1e5aa8;
}

.btn-primary:hover {
    background-color: #164a94;
    box-shadow: 0 8px 20px rgba(30, 90, 168, 0.25);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background-color: white;
    color: #1e5aa8;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.10);
    transform: translateY(-1px);
}

.btn-highlight {
    background-color: #dc3545;
    color: white;
}

.btn-highlight:hover {
    background-color: #c82333;
    box-shadow: 0 8px 20px rgba(200, 35, 51, 0.25);
    transform: translateY(-1px);
}

.offer-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
}

.offer-content h2 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

/* 区域通用样式 */
.section-header {
    margin-bottom: 3vh;
    /* 默认为左对齐样式 */
    text-align: left;
    margin-left: 0;
    margin-right: auto;
    position: relative;
    padding-left: clamp(16px, 2vw, 24px);
}

/* 默认添加左侧装饰线 */
.section-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: clamp(3px, 0.4vw, 5px);
    height: 100%;
    background: linear-gradient(180deg, #1e5aa8, #2d6bb7);
    border-radius: 2px;
}

.section-header--left {
    /* 继承基础样式即可 */
}

.section-header--center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    max-width: 800px;
    padding-left: 0; /* 居中时不需要左侧内边距 */
}

/* 居中样式移除左侧装饰线 */
.section-header--center::before {
    display: none;
}

.section-header h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 600;
    color: #111;
    letter-spacing: -0.2px;
    margin-bottom: clamp(8px, 1vh, 15px);
}

/* 居中标题添加装饰下划线 */
.section-header--center h2 {
    position: relative;
    display: inline-block;
    padding-bottom: clamp(8px, 1.5vh, 12px);
}

.section-header--center h2::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: clamp(40px, 8vw, 80px);
    height: clamp(3px, 0.4vw, 4px);
    background: linear-gradient(90deg, #1e5aa8, #2d6bb7);
    border-radius: 2px;
}

.section-header p {
    font-size: 1rem;
    color: #666;
    margin: 0;
}

.section-header--center p {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* 合作伙伴品牌区域 */
.partners {
    padding: 60px 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #1e5aa8;
}

.logo-placeholder {
    font-weight: 600;
    color: #1e5aa8;
    font-size: 1rem;
}

.newsletter-signup {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 2px dashed #1e5aa8;
}

.newsletter-signup p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 15px;
}

/* 解决方案区域 */
.solutions {
    padding: clamp(50px, 10vh, 100px) 0;
    background-color: #f8f9fa;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
    gap: 25px;
}

.solution-card {
    background-color: white;
    padding: clamp(20px, 3vh, 35px) clamp(16px, 2vw, 28px);
    border-radius: clamp(6px, 0.8vw, 10px);
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.04);
    transition: all 0.25s ease;
    border: 1px solid #e7edf5;
}

.solution-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    border-color: #d9e4f3;
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: #1e5aa8;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.solution-icon i {
    font-size: 1.8rem;
    color: white;
}

.solution-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.solution-card p {
    color: #666;
    font-size: 0.95rem;
}

/* 关于我们区域 */
.about {
   padding: clamp(40px, 8vh, 80px) 0;
  background-color: #f8f9fa;
}

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

.about-text h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    color: #1e5aa8;
    margin-bottom: clamp(15px, 2vh, 25px);
}

.about-text p {
    color: #3e3e3e;
    margin-bottom: 25px;
    line-height: 1.6;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.feature-item i {
    color: #28a745;
    margin-right: 10px;
}

.image-placeholder {
    width: 280px;
    height: 280px;
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3.5rem;
    margin: 0 auto;
}

.timeline {
    position: relative;
    max-width: min(800px, 90vw);
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
    width: 100%;
}

.timeline-year {
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    color: white;
    padding: 15px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 4px 15px rgba(30, 90, 168, 0.3);
    min-width: 80px;
    text-align: center;
}

.timeline-content {
    background: white;
    padding: 25px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: calc(50% - 60px);
    position: relative;
    border: 1px solid #e0e0e0;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
    margin-right: 60px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: auto;
    margin-left: 60px;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 10px solid transparent;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: -20px;
    border-right-color: white;
}

.timeline-item:nth-child(even) .timeline-content::before {
    right: -20px;
    border-left-color: white;
}

.timeline-content h3 {
    color: #1e5aa8;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 时间线动画效果 */
.timeline-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 企业文化区域 */
.company-culture {
    padding: 60px 0;
    background-color: white;
}

.culture-content {
    width: 85vw;
    max-width: 2000px;
    margin: 0 auto;
}

.vision-mission {
    margin-bottom: 60px;
}

.vision-item {
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
}

.vision-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 15px rgba(30, 90, 168, 0.3);
}

.vision-icon i {
    font-size: 2rem;
    color: white;
}

.vision-item h3 {
    color: #1e5aa8;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 25px;
}

.vision-list p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    padding: 15px;
    background: white;
    border-radius: 8px;
}

.culture-values h3 {
    color: #1e5aa8;
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
    gap: 30px;
}

.value-item {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    border-color: #1e5aa8;
}

.value-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #28a745, #20c997);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 3px 12px rgba(40, 167, 69, 0.3);
}

.value-icon i {
    font-size: 1.5rem;
    color: white;
}

.value-item h4 {
    color: #1e5aa8;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.value-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 联系我们区域 */
.contact-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.contact-content {
    width: 90vw;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-offices h3 {
    color: #1e5aa8;
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
}

.offices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: clamp(20px, 3vw, 30px);
    max-width: 100%;
}

.office-card {
    background: white;
    padding: clamp(20px, 3vw, 30px);
    border-radius: clamp(8px, 1vw, 12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
    max-width: 100%;
    word-wrap: break-word;
}

.office-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #1e5aa8;
}

.office-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.office-header i {
    font-size: 1.5rem;
    color: #1e5aa8;
    margin-right: 12px;
}

.office-header h4 {
    color: #1e5aa8;
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.office-info p {
    display: flex;
    align-items: flex-start;
    margin-bottom: 12px;
    color: #666;
    line-height: 1.6;
    word-break: break-word;
    overflow-wrap: break-word;
}

.office-info i {
    min-width: 20px;
    width: 20px;
    margin-right: 12px;
    margin-top: 3px;
    color: #28a745;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
    gap: clamp(20px, 2vw, 40px);
    width: 90vw;
    max-width: 1400px;
    margin: 0 auto;
}

.maintenance-item {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.maintenance-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: #1e5aa8;
    background: white;
}

.maintenance-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #dc3545, #e74c3c);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
    transition: all 0.3s ease;
}

.maintenance-item:hover .maintenance-icon {
    transform: scale(1.1);
}

.maintenance-icon i {
    font-size: 2rem;
    color: white;
}

.maintenance-item h3 {
    color: #1e5aa8;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.maintenance-item p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 25px;
}

.maintenance-features {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.maintenance-features li {
    color: #333;
    padding: 8px 0;
    position: relative;
    padding-left: 25px;
    line-height: 1.5;
}

.maintenance-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
    font-size: 1.1rem;
}

/* 服务区域 */
.services {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.service-card {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.04);
    border: 1px solid #e7edf5;
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.service-icon {
    width: 50px;
    height: 50px;
    background: #1e5aa8;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.service-icon i {
    font-size: 1.3rem;
    color: white;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e5aa8;
    margin-bottom: 12px;
}

.service-card p {
    color: #666;
    margin-bottom: 18px;
    line-height: 1.6;
}

.service-link {
    color: #1e5aa8;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* 培训、B2B、新闻区域样式 */
.training,
.news {
    padding: 48px 0;
}

.training {
    background-color: white;
}

.news {
    background-color: #f8f9fa;
}

.training-grid,
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.training-card,
.news-card {
    background-color: #ffffff;
    border-radius: clamp(8px, 1vw, 16px);
    overflow: hidden;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--color-border);
    padding: clamp(16px, 2vw, 24px);
}

.training-card:hover,
.news-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.10);
}

.training-image,
.news-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
}

/* 允许新闻卡片使用真实图片 */
.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* =============================
   Hero 模式优化：Minimal 与 Carousel
   ============================= */
/* Minimal：显示标题与背景，隐藏轮播 */
.hero-minimal .hero-background-layer {
    display: block !important;
}

.hero-minimal .hero-carousel-wrapper {
    display: none !important;
}

.hero-minimal .hero-header {
    display: none !important;
}

.hero-amd-carousel {
    position: relative;
}

.hero-amd-carousel .hero-content-layer {
    position: relative;
    z-index: 1;
    padding: 48px 0 20px;
}

.hero-amd-carousel .hero-header {
    width: 85vw;
    max-width: 1400px;
    margin: 2.5vh auto 0;
    text-align: left;
}

.hero-amd-carousel .hero-title {
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: .2px;
}

.hero-amd-carousel .hero-description {
    color: #5a6372;
    margin-top: 10px;
    font-size: clamp(14px, 2vw, 18px);
}

.hero-amd-carousel .cta-row {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

/* 背景图层（全局已存在 overlay），这里保证层级 */
.hero-amd-carousel .hero-background-layer {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-amd-carousel .hero-bg-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-amd-carousel .hero-bg-image.is-active {
    opacity: 1;
}

.hero-amd-carousel .hero-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.35) 35%, rgba(255, 255, 255, 0.3) 100%);
}

/* Minimal 模式下减弱覆盖，让背景更可见 */
.hero-minimal .hero-bg-overlay {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.35) 35%, rgba(255, 255, 255, 0.4) 100%);
}

/* Carousel：更好看的卡片与控件 */
/* removed carousel card and controls styles */

.training-image i,
.news-image i {
    font-size: 2.5rem;
    color: white;
}

.training-content,
.news-content {
    padding: 25px;
}

.training-type,
.news-category {
    display: inline-block;
    background-color: #eaf1fb;
    color: #1e5aa8;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 12px;
    border: 1px solid #dbe7fb;
}

/* B2B门户区域 */
.b2b-portal {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    color: white;
}

.b2b-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.b2b-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.b2b-benefits {
    list-style: none;
    margin-bottom: 25px;
}

.b2b-benefits li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.b2b-benefits i {
    color: #28a745;
    margin-right: 10px;
}

.b2b-form {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 8px;
    color: #333;
}

.b2b-form h3 {
    color: #1e5aa8;
    margin-bottom: 20px;
    text-align: center;
}

.b2b-form input,
.b2b-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}

.b2b-form button {
    width: 100%;
    border: none;
}

/* FAQ区域 */
.faq {
    padding: 80px 0;
    background-color: white;
}

.faq-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    cursor: pointer;
    background-color: #f8f9fa;
}

.faq-question:hover {
    background-color: #e9ecef;
}

.faq-item.active .faq-question {
    background-color: #1e5aa8;
    color: white;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 20px;
    color: #666;
    margin: 0;
}

/* 页脚样式 */
.footer {
    background-color: #1a365d;
    color: white;
    padding: 50px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2vw;
    margin-bottom: 24px;
    align-items: start;
}

/* 简化版页脚（当前首页结构）更优排列：左信息 + 右版权 */
.footer-content:has(.company-info) {
    grid-template-columns: 1fr auto;
    align-items: center;
}

.footer-content p {
    color: #cbd5e0;
}

.footer i {
    color: #60a5fa;
    margin-right: 8px;
}

.footer-section h3 {
    color: #60a5fa;
    margin-bottom: 18px;
}

.footer-section h4 {
    margin-bottom: 15px;
}

.footer-section p,
.footer-section ul li a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.2s ease, text-underline-offset 0.2s ease, text-decoration-color 0.2s ease;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a:hover {
    color: #60a5fa;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(96, 165, 250, 0.6);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 36px;
    height: 36px;
    background-color: #2d3748;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
}

.social-links a:hover {
    background-color: #60a5fa;
}

.contact-info p {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.contact-info i {
    margin-right: 10px;
    color: #60a5fa;
    width: 16px;
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding: 25px 0;
    text-align: center;
}

.footer-bottom-content p {
    color: #a0aec0;
    margin-bottom: 8px;
}

.company-info {
    font-size: 13px;
    opacity: 0.8;
}

/* 自定义光标 */








/* 加载屏幕 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e5aa8, #2d6bb7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

.loader-content {
    /* 居中内部块级元素 */
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: white;
}

.loader-logo h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.loader-logo p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.loader-bar {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    /* 水平居中进度条容器 */
    margin: 0 auto 20px;
}

.loader-progress {
    height: 100%;
    background: linear-gradient(90deg, #60a5fa, #3b82f6);
    border-radius: 2px;
    transition: width 0.3s ease;
    width: 0%;
}

.loader-text {
    font-size: 1rem;
    opacity: 0.8;
}

/* 增强的返回顶部按钮 */
.back-to-top.enhanced {
    position: fixed !important;
    bottom: 30px !important;
    right: 30px !important;
    width: 60px !important;
    height: 60px !important;
    background: #1e5aa8 !important;
    color: white !important;
    border: none !important;
    border-radius: 50% !important;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(30, 90, 168, 0.3) !important;
    transition: all 0.3s ease !important;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px) scale(0.5) !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.enhanced.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1) !important;
}

.back-to-top.enhanced:hover {
    background: #164a94 !important;
    transform: translateY(0) scale(1.1) !important;
    box-shadow: 0 6px 25px rgba(30, 90, 168, 0.4) !important;
}

.progress-ring {
    position: absolute;
    top: -2px;
    left: -2px;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: conic-gradient(#1e5aa8 0deg, rgba(255, 255, 255, 0.2) 0deg);
    padding: 2px;
}

.progress-ring::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 56px;
    height: 56px;
    background: #1e5aa8;
    border-radius: 50%;
}

.back-to-top.enhanced i {
    position: relative;
    z-index: 2;
    font-size: 1.2rem;
}

/* 增强动画效果 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

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

.animate-children .solution-card,
.animate-children .service-card,
.animate-children .training-card,
.animate-children .news-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-children .solution-card.fade-in-up,
.animate-children .service-card.fade-in-up,
.animate-children .training-card.fade-in-up,
.animate-children .news-card.fade-in-up {
    opacity: 1;
    transform: translateY(0);
}

/* 新增元素动画 */
.value-item,
.office-card,
.maintenance-item,
.solution-advantages .advantage-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-item.fade-in-up,
.office-card.fade-in-up,
.maintenance-item.fade-in-up,
.solution-advantages .advantage-item.fade-in-up {
    opacity: 1;
    transform: translateY(0);
}

/* 改进的卡片悬停效果 */
.solution-card,
.service-card,
.training-card,
.news-card {
    position: relative;
    overflow: hidden;
}

.solution-card::before,
.service-card::before,
.training-card::before,
.news-card::before {
    /* 极简风格移除卡片闪光效果 */
    content: none;
}

.solution-card:hover::before,
.service-card:hover::before,
.training-card:hover::before,
.news-card:hover::before {
    left: 100%;
}

/* 按钮增强效果移除（更克制） */

/* 移动端隐藏自定义光标 */


/* 响应式设计 */
@media (max-width: 768px) {

    /* 移动端容器占用更多空间 */
    .container {
        width: 95vw;
    }

    .solution-advantages .advantages-grid,
    .maintenance-grid,
    .upgrade-categories,
    .services-timeline {
        width: 95vw;
        gap: 4vw;
    }

    .culture-content,
    .cases-container,
    .contact-content,
    .benefits-grid,
    .timeline-container,
    .hero-amd-carousel .hero-header {
        width: 92vw;
    }
    
    .section-header--left {
        width: 92vw;
    }
    
    .section-header--center {
        width: auto;
        padding: 0 20px;
    }

    /* 顶部栏已移除：精简移动端样式 */
    .contact-info,
    .top-links {
        display: none !important;
    }

    .navbar {
        top: 0 !important;
    }

    body {
        padding-top: 90px !important;
    }

    .contact-info span {
        margin-right: 0;
        font-size: 12px;
        min-width: 140px;
        justify-content: center;
    }

    .top-links {
        display: flex;
        justify-content: center;
        gap: 10px;
    }

    .top-links a {
        font-size: 11px;
        padding: 4px 10px;
        margin-left: 0;
    }

    /* 调整导航栏位置 */
    .navbar {
        top: 70px;
        /* 适应移动端顶部栏高度 */
    }

    body {
        padding-top: 140px;
        /* 适应移动端总高度 */
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        border-top: 1px solid #e0e0e0;
    }

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

    .nav-menu li {
        margin: 0;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-menu a {
        padding: 15px 20px;
        font-size: 16px;
        border-radius: 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .hero-stats {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }

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

    .hero-tech-icons {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }

    .carousel-controls {
        left: 20px;
        right: 20px;
    }

    .carousel-btn {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }

    .scroll-indicator {
        right: 20px;
        font-size: 0.8rem;
    }

    .about-content,
    .b2b-content {
        grid-template-columns: 1fr;
    }

    /* 时间线移动端样式 */
    .timeline::before {
        left: 20px;
        transform: none;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        margin-left: 40px;
    }

    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-year {
        position: absolute;
        left: -60px;
        transform: none;
        font-size: 0.9rem;
        padding: 10px 15px;
        min-width: 70px;
    }

    .timeline-content {
        width: 100%;
        margin: 0;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin: 0;
    }

    .timeline-content::before {
        display: none;
    }

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

    .solutions-grid,
    .services-grid,
    .training-grid,
    .news-grid,
    .values-grid,
    .offices-grid,
    .maintenance-grid {
        grid-template-columns: 1fr;
    }

    /* 企业文化移动端样式 */
    .vision-item {
        padding: 30px 20px;
    }

    .vision-item h3 {
        font-size: 1.5rem;
    }

    .culture-values h3,
    .contact-offices h3 {
        font-size: 1.5rem;
    }

    .value-item,
    .office-card,
    .maintenance-item {
        padding: 25px 20px;
    }

    .office-header {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .office-header i {
        margin-bottom: 8px;
        margin-right: 0;
    }

    /* 新闻详细页面移动端样式 */
    .news-detail .news-grid {
        grid-template-columns: 1fr;
    }

    .news-card {
        margin-bottom: 20px;
    }

    /* 案例详细页面移动端样式 */
    .cases-grid {
        grid-template-columns: 1fr;
    }

    /* 解决方案详细页面移动端样式 */
    .solutions-detail .solutions-grid,
    .industry-solutions .solutions-grid,
    .technical-solutions .solutions-grid {
        grid-template-columns: 1fr;
    }

    /* 解决方案优势移动端样式 */
    .solution-advantages .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .solution-advantages .advantage-item {
        padding: 25px 20px;
    }

    .solution-advantages .advantage-icon {
        width: 60px;
        height: 60px;
    }

    /* 解决方案模态框移动端样式 */
    .solution-modal-content {
        width: 95%;
        margin: 5% auto;
        max-height: 85vh;
    }

    .solution-modal-header {
        padding: 20px;
    }

    .solution-modal-header h2 {
        font-size: 1.3rem;
        padding-right: 40px;
    }

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

    .solution-modal-body h3 {
        font-size: 1.3rem;
    }

    .solution-modal-body h4 {
        font-size: 1.1rem;
    }

    /* 解决方案卡片移动端优化 */
    .solution-highlights {
        gap: 6px;
    }

    .highlight-tag {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .solution-card.featured::before {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

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

/* 超小屏幕优化 */
@media (max-width: 480px) {

    .contact-info,
    .top-links {
        display: none !important;
    }

    .navbar {
        top: 0 !important;
    }

    body {
        padding-top: 90px !important;
    }

    .contact-info {
        gap: 8px;
    }

    .contact-info span {
        font-size: 11px;
        min-width: 120px;
    }

    .contact-info i {
        font-size: 12px;
    }

    .top-links a {
        font-size: 10px;
        padding: 3px 8px;
    }

    .navbar {
        top: 60px;
    }

    body {
        padding-top: 130px;
    }

    .hero-carousel {
        min-height: 90vh;
    }

    .carousel-container {
        height: 90vh;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

.hero-carousel .slide-text {
    max-width: 760px;
    text-align: left;
}

.hero-carousel .slide-actions {
    display: flex;
    gap: 14px;
    margin-top: 14px;
}

/* 让首屏文案落在上三分之一，留足呼吸感 */
.hero-carousel .carousel-slide .container {
    padding-top: 96px;
    padding-bottom: 96px;
}

.hero-carousel .slide-text h2 {
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: -0.2px;
    margin-bottom: 12px;
    text-shadow: none;
}

.hero-carousel .slide-text p {
    font-size: 1.125rem;
    opacity: 0.85;
}

.hero-carousel .carousel-slides .carousel-slide {
    display: none;
}

.hero-carousel .carousel-slides .carousel-slide:first-child {
    display: block;
}

.hero-carousel .carousel-nav,
.hero-carousel .carousel-indicators {
    display: none !important;
}

.hero-carousel .carousel-slide:first-child {
    background: linear-gradient(135deg, #1e5aa8 0%, #2d6bb7 100%);
}

.hero-simple {
    min-height: calc(100vh - 90px);
    color: #fff;
    display: flex;
    align-items: flex-start;
    background: #0f2f5a;
}

.hero-simple .container {
    width: 100%;
}

.hero-simple .hero-simple-content {
    max-width: 760px;
    padding-top: 96px;
    padding-bottom: 96px;
}

.hero-simple h1 {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.2px;
    margin-bottom: 12px;
}

.hero-simple p {
    font-size: 17px;
    opacity: 0.85;
}

.hero-simple .hero-actions,
.hero-simple .slide-actions {
    display: flex;
    gap: 14px;
    margin-top: 14px;
}

/* 兼容旧的 slide 结构，隐藏多余项，仅保留第一屏 */
.hero-simple .carousel-slides .carousel-slide {
    display: none;
}

.hero-simple .carousel-slides .carousel-slide:first-child {
    display: block;
}

.hero-simple .carousel-nav,
.hero-simple .carousel-indicators {
    display: none !important;
}

.hero-simple .container {
    padding-top: 96px;
    padding-bottom: 96px;
}

.hero-simple .carousel-container {
    display: none !important;
}

.hero-simple .slide-text h2 {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.2px;
    margin-bottom: 12px;
}

.hero-simple .slide-text p {
    font-size: 17px;
    opacity: 0.85;
}

.hero-simple .slide-text {
    text-align: left;
    max-width: 760px;
}

/* Minimal Theme Additions (white/blue/green) */
.with-bg {
    position: relative;
    overflow: hidden;
}

.with-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--bg);
    background-size: cover;
    background-position: center;
    opacity: 0.18;
    pointer-events: none;
}

.bg-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    pointer-events: none;
}

.about-capabilities {
    padding: 80px 0 ;
    background: #fff;
}

.about-capabilities .about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-capabilities .about-list {
    margin: 10px 0 0;
    padding-left: 18px;
    color: #555;
}

.about-capabilities .about-list li {
    line-height: 1.8;
    margin-bottom: 6px;
}

.about-capabilities .media-box {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #777;
}

.about-capabilities .media-box.placeholder {
    font-size: 0.95rem;
}

/* 旧版 .case-studies 样式已删除，使用新版简约高端样式（第4183行） */

.contact-content .cta-actions {
    margin-top: clamp(20px, 4vh, 40px);
    display: flex;
    gap: clamp(10px, 2vw, 16px);
    justify-content: center;
    flex-wrap: wrap;
}

/* Partners subtle enhancement */
/* 旧版 .partners 样式已删除，使用完整版样式（第1467行） */

/* SPA: 单页显示控制 */
/* Vue 路由接管页面显示，取消基于 .active 的显隐 */
main>section.spa-section {
    display: block;
}

/* About: original grid layout */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(90px, 1fr));
    gap: 16px;
    margin: 16px 0 20px;
}
.company-stats .stat-item { text-align: center; }
.company-stats .stat-number {
    font-size: 2rem;
    font-weight: 600;
    color: #1e5aa8;
    line-height: 1;
}

.company-certs { margin: 16px 0 16px; }
.company-certs .cert-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 8px 0;
    color: #444;
}
.company-certs .cert-item i { color: #1e5aa8; }

.about-media .media-box {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #777;
}

main>section.spa-section.active {
    display: block;
}

/* 首页专属内容模块 */
.home-section {
    display: block;
}

/* #home.active~.home-section 旧规则废弃（由路由控制显示） */

/* 解决方案详细页面样式 */
.solution-detail {
    padding: 60px 0;
    background: #f8f9fa;
}

.solution-content {
    margin-top: 40px;
}

.solution-overview,
.solution-features,
.solution-applications {
    margin-bottom: 40px;
}

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

.feature-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    font-size: 2.5rem;
    color: #1e5aa8;
    margin-bottom: 15px;
}

.feature-item h4 {
    margin-bottom: 10px;
    color: #333;
}

.solution-applications ul {
    list-style: none;
    padding: 0;
}

.solution-applications li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

/* 商务页面样式 */
.business-page {
    padding: 80px 0;
    background: #f8f9fa;
}

.cooperation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.cooperation-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.cooperation-icon {
    margin-bottom: 20px;
}

.cooperation-icon i {
    font-size: 2.5rem;
    color: #1e5aa8;
}

.cooperation-card h4 {
    margin-bottom: 15px;
    color: #333;
}

.partner-benefits {
    margin-top: 50px;
    background: white;
    padding: 30px;
    border-radius: 12px;
}

.partner-benefits ul {
    list-style: none;
    padding: 0;
}

.partner-benefits li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    color: #666;
}

/* 培训页面样式 */
.training-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(260px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.training-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.training-card:hover {
    transform: translateY(-5px);
}

.training-icon {
    margin-bottom: 20px;
}

.training-icon i {
    font-size: 2.5rem;
    color: #1e5aa8;
}

.training-card h4 {
    margin-bottom: 15px;
    color: #333;
}

/* 维护页面样式 */
.maintenance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(2, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.maintenance-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.maintenance-icon {
    margin-bottom: 20px;
}

.maintenance-icon i {
    font-size: 2.5rem;
    color: #1e5aa8;
}

.maintenance-item h4 {
    margin-bottom: 15px;
    color: #333;
}

/* 分销商页面样式 */
.dealer {
    padding: 80px 0;
    background: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.benefit-card {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
}

.benefit-icon {
    margin-bottom: 20px;
}

.benefit-icon i {
    font-size: 2.5rem;
    color: #1e5aa8;
}

.benefit-card h4 {
    margin-bottom: 15px;
    color: #333;
}

/* FAQ页面样式 */
.faq {
    padding: clamp(50px, 10vh, 100px) 0;
    background: #f8f9fa;
}

.faq-list {
    margin-top: 40px;
}

.faq-item {
    background: white;
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-question h4 {
    margin: 0;
    color: #333;
}

.faq-question i {
    color: #1e5aa8;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 200px;
}

/* 简约高端时间轴样式 */
.company-history {
    padding: clamp(40px, 8vh, 80px) 0;
    background-color: #f8f9fa;
    position: relative;
}

.company-history::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e5e5e5, transparent);
}

.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 0;
}

/* 简约时间线 */
.timeline-line {
    position: absolute;
    left: 60px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #e5e5e5;
}

/* 时间轴项目 */
.timeline-item {
    position: relative;
    margin-bottom: 80px;
    padding-left: 120px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 年份标记 */
.timeline-marker {
    position: absolute;
    left: -60px;
    top: 0;
    width: 120px;
    text-align: right;
    padding-right: 30px;
}

.timeline-year {
    font-size: 0.8rem;
    font-weight: 600;
    color: #333;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
    background: #f8fafb;
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid #e5e5e5;
}

.timeline-dot {
    position: absolute;
    right: -4px;
    top: 4px;
    width: 8px;
    height: 8px;
    background: #333;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-dot {
    background: #1e5aa8;
    transform: scale(1.5);
    box-shadow: 0 0 0 4px rgba(30, 90, 168, 0.1);
}

.timeline-item[data-year="2024"] .timeline-dot {
    background: #1e5aa8;
    transform: scale(1.2);
}

/* 内容卡片 */
.timeline-card {
    background: transparent;
    padding: 0;
    border: none;
    box-shadow: none;
}

.timeline-card h3 {
    font-size: 1.5rem;
    font-weight: 300;
    color: #333;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.timeline-card p {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 600px;
}

/* 成就标签 - 简约版 */
.timeline-achievements {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.achievement {
    font-size: 0.8rem;
    color: #888;
    padding: 0;
    background: none;
    border: none;
    position: relative;
    transition: color 0.3s ease;
}

.achievement::before {
    content: '•';
    margin-right: 6px;
    color: #ccc;
}

.achievement:hover {
    color: #1e5aa8;
}

.achievement:hover::before {
    color: #1e5aa8;
}

/* 当前年份特殊样式 */
.timeline-item[data-year="2025"] .timeline-year {
    color: white;
    background: #1e5aa8;
    border-color: #1e5aa8;
    font-weight: 600;
}

.timeline-item[data-year="2025"] h3 {
    color: #1e5aa8;
}

.timeline-item[data-year="2025"]::after {
    content: 'Current';
    position: absolute;
    left: -60px;
    top: 40px;
    font-size: 0.7rem;
    color: #1e5aa8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

/* 悬停效果 */
.timeline-item:hover {
    transform: translateX(8px);
}

.timeline-item:hover .timeline-year {
    color: white;
    background: #1e5aa8;
    border-color: #1e5aa8;
}

.timeline-item:hover h3 {
    color: #1e5aa8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .company-history {
        padding: 60px 0;
    }

    .timeline-container {
        padding: 40px 20px;
    }

    .timeline-line {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px;
        margin-bottom: 60px;
    }

    .timeline-marker {
        left: -20px;
        width: 60px;
        padding-right: 20px;
    }

    .timeline-dot {
        right: -4px;
    }

    .timeline-card h3 {
        font-size: 1.3rem;
    }

    .timeline-card p {
        font-size: 0.9rem;
    }

    .timeline-item[data-year="2025"]::after {
        left: -20px;
        top: 35px;
        font-size: 0.65rem;
    }
}

/* 进入动画序列 */
.timeline-item:nth-child(1) {
    transition-delay: 0.1s;
}

.timeline-item:nth-child(2) {
    transition-delay: 0.2s;
}

.timeline-item:nth-child(3) {
    transition-delay: 0.3s;
}

.timeline-item:nth-child(4) {
    transition-delay: 0.4s;
}

.timeline-item:nth-child(5) {
    transition-delay: 0.5s;
}

.timeline-item:nth-child(6) {
    transition-delay: 0.6s;
}

.timeline-item:nth-child(7) {
    transition-delay: 0.7s;
}

.timeline-item:nth-child(8) {
    transition-delay: 0.8s;
}

/* 简约高端成功案例样式 */
.case-studies {
    padding: 60px 0;
    background: #ffffff;
    position: relative;
}

.case-studies::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e5e5e5, transparent);
}

.cases-container {
    width: 90vw;
    max-width: 1200px;
    margin: 0 auto;
    padding: clamp(30px, 5vh, 60px) 0;
}

/* 案例项目 */
.case-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: clamp(80px, 15vh, 120px);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    max-width: 100%;
    overflow: hidden;
}

.case-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.case-item:hover {
    transform: translateY(-8px);
}

/* 案例编号 */
.case-number {
    font-size: clamp(3rem, 6vw, 4rem);
    font-weight: 100;
    color: #89aac6;
    line-height: 1;
    margin-right: clamp(30px, 5vw, 60px);
    min-width: clamp(80px, 12vw, 120px);
    text-align: right;
    flex-shrink: 0;
    transition: all 0.3s ease;
    user-select: none;
}

.case-item:hover .case-number {
    color: #1e5aa8;
    transform: scale(1.1);
}

/* 案例内容 */
.case-content {
    flex: 1;
    padding-left: clamp(20px, 4vw, 40px);
    border-left: 1px solid #e8f4f8;
    position: relative;
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.case-content::before {
    content: '';
    position: absolute;
    left: -2px;
    top: 0;
    width: 4px;
    height: 60px;
    background: linear-gradient(to bottom, #1e5aa8, #28a745);
    border-radius: 2px;
}

/* 案例元信息 */
.case-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.case-industry {
    color: #1e5aa8;
    font-weight: 500;
}

.case-year {
    color: #888;
    font-weight: 400;
}

/* 案例标题 */
.case-item h3 {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: 300;
    color: #333;
    margin-bottom: clamp(12px, 2vh, 16px);
    letter-spacing: -0.02em;
    line-height: 1.3;
    word-wrap: break-word;
}

/* 案例描述 */
.case-item p {
    font-size: clamp(0.95rem, 1.5vw, 1rem);
    color: #666;
    line-height: 1.7;
    margin-bottom: clamp(20px, 3vh, 30px);
    max-width: 100%;
    word-wrap: break-word;
}

/* 案例指标 */
.case-metrics {
    display: flex;
    gap: clamp(20px, 4vw, 40px);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.metric {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #28a745;
    line-height: 1;
    margin-bottom: 4px;
}

.metric-label {
    font-size: 0.75rem;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* 客户信息 */
.case-clients {
    font-size: 0.9rem;
    color: #999;
    font-style: italic;
    border-top: 1px solid #f0f8ff;
    padding-top: 16px;
    margin-top: 20px;
}

/* 不同类别的颜色主题 */
.case-item[data-category="automotive"] .case-content::before {
    background: linear-gradient(to bottom, #1e5aa8, #0d47a1);
}

.case-item[data-category="automotive"] .case-industry {
    color: #1e5aa8;
}

.case-item[data-category="energy"] .case-content::before {
    background: linear-gradient(to bottom, #28a745, #20c997);
}

.case-item[data-category="energy"] .case-industry {
    color: #28a745;
}

.case-item[data-category="manufacturing"] .case-content::before {
    background: linear-gradient(to bottom, #20c997, #17a2b8);
}

.case-item[data-category="manufacturing"] .case-industry {
    color: #17a2b8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .case-studies {
        padding: 60px 0;
    }

    .cases-container {
        padding: 40px 20px;
    }

    .case-item {
        flex-direction: column;
        margin-bottom: 80px;
    }

    .case-number {
        font-size: 2.5rem;
        margin-right: 0;
        margin-bottom: 20px;
        text-align: left;
        min-width: auto;
    }

    .case-content {
        padding-left: 0;
        border-left: none;
        border-top: 1px solid #e8f4f8;
        padding-top: 20px;
    }

    .case-content::before {
        left: 0;
        top: -2px;
        width: 60px;
        height: 4px;
    }

    .case-item h3 {
        font-size: 1.5rem;
    }

    .case-metrics {
        gap: 20px;
    }

    .metric-value {
        font-size: 1.3rem;
    }
}

/* 进入动画序列 - 案例 */
.case-item:nth-child(1) {
    transition-delay: 0.1s;
}

.case-item:nth-child(2) {
    transition-delay: 0.3s;
}

.case-item:nth-child(3) {
    transition-delay: 0.5s;
}

/* 首页核心能力展示 */
.capabilities {
    padding: 80px 0 48px;
    background: #f8fafb;
    border-top: 1px solid #e8f4f8;
    border-bottom: 1px solid #e8f4f8;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3vw;
    width: 100%;
    margin: 0 auto;
}

.capability-item {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.capability-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.capability-number {
    font-size: 2.5rem;
    font-weight: 200;
    color: #1e5aa8;
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.capability-label {
    font-size: 0.85rem;
    color: #666;
    font-weight: 400;
    letter-spacing: 0.05em;
}

/* 首页解决方案预览 - 紧凑版 */
.home-solutions {
    padding: 48px 0 48px;
    background: #f8fafb;
}

.solutions-compact {
    width: 100%;
    margin: 0 auto;
}

.solutions-header {
    text-align: left;
    margin-bottom: 50px;
}

.solutions-header h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.solutions-header p {
    font-size: 1rem;
    color: #666;
    margin: 0;
}

.solutions-grid-compact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.solution-card-compact {
    background: white;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f0f0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
}

.solution-card-compact.visible {
    opacity: 1;
    transform: translateY(0);
}

.solution-card-compact:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
    border-color: #dfe5ee;
}

.solution-number {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.solution-info {
    flex: 1;
    min-width: 0;
}

/* 场景式呈现（嵌入到紧凑方案卡片内） */
.solution-card-compact .scenario-brief {
    color: #666;
    font-size: 0.95rem;
    margin: 6px 0 8px;
}

.solution-card-compact .scenario-painpoints {
    margin: 0 0 10px;
    padding-left: 18px;
    color: #666;
}

.solution-card-compact .scenario-painpoints li {
    line-height: 1.6;
}

.solution-card-compact .scenario-solution {
    background: #f9fbff;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: #1e5aa8;
    padding: 8px 12px;
    font-weight: 600;
    margin-bottom: 10px;
}

.solution-card-compact .scenario-kpis {
    display: flex;
    gap: 10px;
}

.solution-card-compact .scenario-kpis .kpi {
    flex: 1;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 8px;
    text-align: center;
}

.solution-card-compact .scenario-kpis .kpi strong {
    display: block;
    color: #1e5aa8;
}

.solution-card-compact .scenario-kpis .kpi span {
    font-size: 12px;
    color: #777;
}

.solution-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.solution-info p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 12px;
    line-height: 1.4;
}

.solution-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.solution-tags span {
    font-size: 0.75rem;
    color: #888;
    background: #f0f4f8;
    padding: 4px 8px;
    border-radius: 12px;
    border: 1px solid #e8f0f5;
    transition: all 0.3s ease;
}

.solution-arrow {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    text-decoration: none;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.solution-arrow:hover {
    background: #1e5aa8;
    color: white;
}

/* 不同类别的悬停效果 */
.solution-card-compact[data-category="process"]:hover .solution-number {
    background: #1e5aa8;
    color: white;
}

.solution-card-compact[data-category="process"]:hover .solution-tags span {
    background: #e3f2fd;
    border-color: #bbdefb;
    color: #1565c0;
}

.solution-card-compact[data-category="factory"]:hover .solution-number {
    background: #28a745;
    color: white;
}

.solution-card-compact[data-category="factory"]:hover .solution-tags span {
    background: #e8f5e8;
    border-color: #c8e6c9;
    color: #2e7d32;
}

.solution-card-compact[data-category="digital"]:hover .solution-number {
    background: #17a2b8;
    color: white;
}

.solution-card-compact[data-category="digital"]:hover .solution-tags span {
    background: #e0f7fa;
    border-color: #b2ebf2;
    color: #00695c;
}

.solution-card-compact[data-category="safety"]:hover .solution-number {
    background: #dc3545;
    color: white;
}

.solution-card-compact[data-category="safety"]:hover .solution-tags span {
    background: #ffebee;
    border-color: #ffcdd2;
    color: #c62828;
}

.btn-solutions {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    background: #1e5aa8;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(30, 90, 168, 0.2);
}

.btn-solutions:hover {
    background: #0d47a1;
    box-shadow: 0 2px 8px rgba(30, 90, 168, 0.25);
}

/* 信任背书 */
.trust-section {
    padding: 60px 0;
    background: #f8fafb;
    border-top: 1px solid #e8f4f8;
}

.trust-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.trust-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.trust-text h3 {
    font-size: 1.2rem;
    font-weight: 400;
    color: #333;
    margin-bottom: 8px;
}

.trust-text p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
}

.trust-logos {
    display: flex;
    gap: clamp(16px, 4vw, 40px);
    align-items: center;
}

.trust-logo {
    font-size: 0.9rem;
    color: #888;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: #ffffff;
    transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.trust-logo:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 6px 14px rgba(30, 90, 168, 0.18);
    transform: translateY(-1px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .capabilities {
        padding: 60px 0;
    }

    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
        padding: 0 20px;
    }

    .capability-number {
        font-size: 2rem;
    }

    .home-solutions {
        padding: 80px 0;
    }

    .solutions-grid-compact {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0 20px;
    }

    .solution-card-compact {
        padding: 20px;
        gap: 16px;
    }

    .solution-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .solution-info h3 {
        font-size: 1.1rem;
    }

    .solution-arrow {
        width: 32px;
        height: 32px;
    }

    .trust-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
        padding: 0 20px;
    }

    .trust-logos {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .solutions-preview {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .trust-logos {
        gap: 15px;
    }

    .trust-logo {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}

/* 进入动画序列 - 首页元素 */
.capability-item:nth-child(1) {
    transition-delay: 0.1s;
}

.capability-item:nth-child(2) {
    transition-delay: 0.2s;
}

.capability-item:nth-child(3) {
    transition-delay: 0.3s;
}

.capability-item:nth-child(4) {
    transition-delay: 0.4s;
}

.solution-card-compact:nth-child(1) {
    transition-delay: 0.1s;
}

.solution-card-compact:nth-child(2) {
    transition-delay: 0.2s;
}

.solution-card-compact:nth-child(3) {
    transition-delay: 0.3s;
}

.solution-card-compact:nth-child(4) {
    transition-delay: 0.4s;
}

/* 智能助手悬浮入口 */
[hidden] {
    display: none !important;
}

.assistant-widget {
    position: fixed;
    right: 24px;
    bottom: 120px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    z-index: 1100;
}

.assistant-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #1e5aa8, #3288e6);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 12px 20px;
    font-size: 0.95rem;
    box-shadow: 0 10px 30px rgba(30, 90, 168, 0.3);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.assistant-button i {
    font-size: 1.1rem;
}

.assistant-button:hover,
.assistant-button:focus {
    transform: translateY(-2px);
    box-shadow: 0 14px 35px rgba(30, 90, 168, 0.35);
    outline: none;
}

.assistant-panel {
    width: min(320px, calc(100vw - 40px));
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(30, 90, 168, 0.12);
    overflow: hidden;
    animation: assistant-fade-in 0.2s ease;
}

.assistant-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    background: linear-gradient(135deg, rgba(30, 90, 168, 0.15), rgba(50, 136, 230, 0.15));
    border-bottom: 1px solid rgba(30, 90, 168, 0.12);
}

.assistant-panel-header h3 {
    margin: 0;
    font-size: 1.05rem;
    color: #1e5aa8;
}

.assistant-close {
    background: transparent;
    border: none;
    color: #1e5aa8;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px;
    transition: transform 0.2s ease, color 0.2s ease;
}

.assistant-close:hover,
.assistant-close:focus {
    color: #0f3b6d;
    transform: rotate(90deg);
    outline: none;
}

.assistant-panel-body {
    padding: 18px;
    color: #333;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 280px;
}

.assistant-messages {
    flex: 1 1 auto;
    max-height: 260px;
    overflow-y: auto;
    padding-right: 6px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.assistant-message {
    display: flex;
}

.assistant-message.assistant {
    justify-content: flex-start;
}

.assistant-message.user {
    justify-content: flex-end;
}

.assistant-bubble {
    padding: 10px 14px;
    border-radius: 12px;
    background: #f1f5fb;
    color: #1a2a4a;
    font-size: 0.92rem;
    line-height: 1.6;
    box-shadow: 0 4px 12px rgba(30, 90, 168, 0.08);
    max-width: 85%;
    white-space: pre-wrap;
    word-break: break-word;
}

.assistant-message.user .assistant-bubble {
    background: linear-gradient(135deg, #1e5aa8, #3288e6);
    color: #fff;
    box-shadow: 0 6px 14px rgba(30, 90, 168, 0.25);
}

.assistant-message.assistant .assistant-bubble {
    background: #f5f7fb;
}

.assistant-message.loading .assistant-bubble {
    opacity: 0.7;
    font-style: italic;
}

.assistant-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    border: 1px solid #d6e2f3;
    border-radius: 12px;
    padding: 12px;
    background: #f8faff;
}

.assistant-form textarea {
    width: 100%;
    min-height: 64px;
    max-height: 160px;
    border: none;
    background: transparent;
    resize: vertical;
    font-size: 0.95rem;
    line-height: 1.5;
    color: #1a2a4a;
}

.assistant-form textarea::placeholder {
    color: #8aa1c4;
}

.assistant-form textarea:focus {
    outline: none;
}

.assistant-actions {
    display: flex;
    justify-content: flex-end;
}

.assistant-send {
    background: #1e5aa8;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.assistant-send:hover,
.assistant-send:focus {
    background: #154277;
    transform: translateY(-1px);
    outline: none;
}

.assistant-send[disabled] {
    background: #a8bedf;
    cursor: not-allowed;
    transform: none;
}

.assistant-loader {
    width: 20px;
    height: 20px;
    margin-left: 12px;
    border: 2px solid rgba(30, 90, 168, 0.2);
    border-top-color: #1e5aa8;
    border-radius: 50%;
    animation: assistant-spin 0.9s linear infinite;
}

.assistant-loader[hidden] {
    display: none;
}

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

.assistant-panel-footer {
    padding: 12px 18px 16px;
    background: #f6f8fb;
    font-size: 0.8rem;
    color: #666;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.assistant-panel-footer code {
    background: rgba(30, 90, 168, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

@keyframes assistant-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 640px) {
    .assistant-widget {
        right: 16px;
        bottom: 100px;
    }

    .assistant-button {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}


.assistant-status {
    font-size: 0.85rem;
    color: #1e5aa8;
    min-height: 1.2em;
}

.assistant-status.error {
    color: #d9534f;
}

.assistant-status.success {
    color: #2ca24c;
}

.assistant-status.loading {
    color: #8aa1c4;
}




.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.assistant-messages::-webkit-scrollbar {
    width: 6px;
}

.assistant-messages::-webkit-scrollbar-thumb {
    background: rgba(30, 90, 168, 0.3);
    border-radius: 999px;
}

.assistant-messages::-webkit-scrollbar-track {
    background: transparent;
}

@media (max-height: 760px) {
    .assistant-panel-body {
        min-height: 240px;
    }

    .assistant-messages {
        max-height: 200px;
    }
}

@media (max-width: 640px) {
    .assistant-panel-body {
        min-height: 240px;
    }

    .assistant-messages {
        max-height: 220px;
    }

    .assistant-form {
        padding: 10px;
    }

    .assistant-send {
        padding: 8px 16px;
    }
}

/* Hide redundant CTA inside solutions overview */
#solutions-overview .section-footer {
    display: none;
}

/* Prefer updated solutions grid if present */
#solutions-overview .solutions-grid.updated { display: grid; }
#solutions-overview .solutions-grid:not(.updated) { display: none; }

/* ===========================================
   大屏幕响应式优化
   适配1440px+, 1920px+, 2560px+等大屏幕
   =========================================== */

/* 1440px及以上 - 标准大屏 */
@media (min-width: 1440px) {
    .container {
        max-width: 1320px;
    }
    
    /* 优化导航栏 */
    .nav-menu a {
        font-size: 15px;
        padding: 10px 18px;
    }
    
    /* 优化网格布局 */
    .solution-advantages .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1320px;
    }
    
    /* 优化首页能力展示 */
    .capabilities-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(40px, 3vw, 60px);
    }
    
    /* 优化解决方案网格 */
    .solutions-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: clamp(24px, 2vw, 40px);
    }
    
    /* 优化产品网格 */
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* 优化新闻网格 */
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* 优化字体大小 */
    :root {
        --font-size-h2: 1.75rem;
        --font-size-h3: 1.5rem;
    }
}

/* 1920px及以上 - 全高清大屏 */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }
    
    /* 优化大屏导航 */
    .nav-menu a {
        font-size: 16px;
        padding: 10px 20px;
    }
    
    /* 优化网格布局 - 显示更多列 */
    .solution-advantages .advantages-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1600px;
        gap: clamp(24px, 2vw, 48px);
    }
    
    .capabilities-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(50px, 3vw, 80px);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(28px, 2vw, 48px);
    }
    
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(28px, 2vw, 48px);
    }
    
    .news-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* 优化合作伙伴网格 */
    .partners-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    /* 优化轮播导航按钮 */
    .carousel-nav-btn {
        width: 60px;
        height: 60px;
    }
    
    .carousel-nav-btn i {
        font-size: clamp(18px, 1.5vw, 24px);
    }
    
    /* 优化字体大小 */
    :root {
        --font-size-h2: 2rem;
        --font-size-h3: 1.75rem;
        --font-size-body: 1.125rem;
    }
    
    /* 优化时间轴 */
    .timeline-container {
        max-width: 1100px;
    }
}

/* 2560px及以上 - 2K/QHD屏幕 */
@media (min-width: 2560px) {
    .container {
        max-width: 1800px;
    }
    
    /* 优化导航栏 */
    .navbar {
        padding: 4px 0;
    }
    
    .nav-content {
        padding: 16px 0;
    }
    
    .nav-menu a {
        font-size: 17px;
        padding: 12px 24px;
    }
    
    /* 优化网格布局 */
    .solution-advantages .advantages-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1800px;
        gap: clamp(30px, 2.5vw, 60px);
    }
    
    .capabilities-grid {
        gap: clamp(60px, 4vw, 100px);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(32px, 2.5vw, 56px);
    }
    
    .products-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: clamp(32px, 2.5vw, 56px);
    }
    
    .news-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: clamp(32px, 2.5vw, 56px);
    }
    
    .partners-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    
    /* 优化字体大小 */
    :root {
        --font-size-h2: 2.25rem;
        --font-size-h3: 2rem;
        --font-size-body: 1.25rem;
    }
    
    /* 优化卡片内边距 */
    .solution-card,
    .product-card,
    .news-card {
        padding: clamp(24px, 2vw, 40px);
    }
    
    /* 优化按钮 */
    .btn {
        padding: 14px 32px;
        font-size: 1.125rem;
    }
    
    /* 优化时间轴 */
    .timeline-container {
        max-width: 1300px;
    }
    
    .timeline-card h3 {
        font-size: 1.75rem;
    }
    
    .timeline-card p {
        font-size: 1.125rem;
    }
}

/* 3840px及以上 - 4K/UHD屏幕 */
@media (min-width: 3840px) {
    .container {
        max-width: 2400px;
    }
    
    /* 优化导航栏 */
    .nav-menu a {
        font-size: 20px;
        padding: 14px 28px;
    }
    
    /* 优化网格布局 - 充分利用4K空间 */
    .solution-advantages .advantages-grid {
        grid-template-columns: repeat(5, 1fr);
        max-width: 2400px;
        gap: clamp(40px, 3vw, 80px);
    }
    
    .capabilities-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: clamp(80px, 5vw, 120px);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: clamp(40px, 3vw, 72px);
    }
    
    .products-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: clamp(40px, 3vw, 72px);
    }
    
    .news-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: clamp(40px, 3vw, 72px);
    }
    
    .partners-grid {
        grid-template-columns: repeat(8, 1fr);
    }
    
    /* 优化字体大小 */
    :root {
        --font-size-h2: 3rem;
        --font-size-h3: 2.5rem;
        --font-size-body: 1.5rem;
    }
    
    /* 优化卡片内边距 */
    .solution-card,
    .product-card,
    .news-card {
        padding: clamp(32px, 2.5vw, 56px);
    }
    
    /* 优化按钮 */
    .btn {
        padding: 18px 40px;
        font-size: 1.375rem;
    }
    
    /* 优化轮播按钮 */
    .carousel-nav-btn {
        width: 80px;
        height: 80px;
    }
    
    .carousel-nav-btn i {
        font-size: 32px;
    }
    
    /* 优化时间轴 */
    .timeline-container {
        max-width: 1800px;
    }
    
    .timeline-card h3 {
        font-size: 2.5rem;
    }
    
    .timeline-card p {
        font-size: 1.5rem;
    }
    
    /* 优化模态框 */
    .solution-modal-content {
        max-width: 1400px;
    }
}

/* 超宽屏优化（21:9等宽屏比例） */
@media (min-width: 2560px) and (min-aspect-ratio: 21/9) {
    .container {
        max-width: 2000px;
    }
    
    .solution-advantages .advantages-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .solutions-grid,
    .products-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}