/* 主题样式 - 蓝绿色主色调 */

/* ========== 全局样式 ========== */
:root {
    --primary-color: #005BAC;
    --primary-light: #0074D9;
    --primary-dark: #003D7A;
    --secondary-color: #00A8A8;
    --secondary-light: #00C9C9;
    --accent-color: #FFD700;
    --text-color: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e8e8e8;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-white);
}

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

a:hover {
    color: var(--primary-light);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ========== 顶部导航 ========== */
.header {
    background: var(--bg-white);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-top {
    background: linear-gradient(135deg, #005BAC 0%, #003D7A 100%);
    color: var(--bg-white);
    padding: 10px 0;
    font-size: 13px;
}

.header-top a {
    color: var(--bg-white);
    margin-left: 20px;
    opacity: 0.9;
}

.header-top a:hover {
    opacity: 1;
}

.header-main {
    padding: 0;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
}

.logo-text {
    margin-left: 15px;
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    margin: 0;
    padding: 0;
    flex-shrink: 0;
}

.nav-menu > li {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-menu > li > a {
    display: flex;
    align-items: center;
    padding: 28px 20px;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-menu > li > a .fa {
    margin-left: 5px;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.nav-menu > li:hover > a .fa {
    transform: rotate(180deg);
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu > li:hover > a::after,
.nav-menu > li.active > a::after {
    width: calc(100% - 50px);
}

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

/* 下拉菜单 - 紧凑级联式 */
.nav-menu > li.has-submenu {
    position: relative;
}

.nav-menu > li.has-submenu > a {
    cursor: pointer;
}

.nav-menu > li.has-submenu:hover > .submenu {
    display: block !important;
}

/* 二级菜单 */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: #fff;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 10px 0;
    display: none;
    z-index: 1000;
    list-style: none;
    margin: 0;
}

.submenu > li {
    position: relative;
}

.submenu > li > a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-color);
    font-size: 14px;
    transition: all 0.3s ease;
}

.submenu > li > a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.submenu > li > a i {
    font-size: 10px;
    color: var(--text-muted);
}

/* 三级菜单 */
.submenu > li:hover > .third-menu {
    display: block;
}

.third-menu {
    position: absolute;
    top: -10px;
    left: 100%;
    min-width: 160px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 10px 0;
    display: none;
    z-index: 1001;
    list-style: none;
    margin: 0;
}

.third-menu li a {
    display: block;
    padding: 10px 20px;
    color: var(--text-color);
    font-size: 14px;
    transition: all 0.3s ease;
}

.third-menu li a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-left: 25px;
}

/* 简单下拉菜单样式 */
.nav-menu > li:not(.dropdown) .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    min-width: 200px;
    background: #fff;
    padding: 15px 0;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.nav-menu > li:not(.dropdown) .dropdown-menu li {
    margin-bottom: 0;
}

.nav-menu > li:not(.dropdown) .dropdown-menu li a {
    display: block;
    padding: 10px 25px;
    color: var(--text-color);
    font-size: 14px;
    transition: all 0.3s ease;
}

.nav-menu > li:not(.dropdown) .dropdown-menu li a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-left: 30px;
}

/* ========== Banner轮播 ========== */
.banner-section {
    margin-top: 80px;
    position: relative;
    overflow: hidden;
    min-height: 550px;
}

.banner-slider {
    position: relative;
    overflow: hidden;
    min-height: 550px;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 550px;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
    z-index: 1;
}

.banner-slide.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.banner-content {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--bg-white);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90%;
}

.banner-content h2,
.banner-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.banner-content p {
    font-size: 24px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.banner-summary {
    font-size: 20px;
    margin-bottom: 15px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.banner-description {
    font-size: 16px;
    margin-bottom: 30px;
    margin-top: auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    position: relative;
    top: 80px;
}

.banner-btn {
    display: inline-block;
    padding: 12px 40px;
    background: var(--accent-color);
    color: var(--primary-dark);
    font-size: 18px;
    font-weight: bold;
    border-radius: 30px;
    transition: var(--transition);
}

.banner-btn:hover {
    background: var(--bg-white);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 91, 172, 0.7) 0%, rgba(0, 168, 168, 0.5) 100%);
}

.company-banner {
    min-height: 550px;
}

.company-banner-slider {
    min-height: 550px;
}

.company-banner-slider .banner-slide {
    height: 550px;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.company-banner-slider .banner-content {
    top: 50%;
}

.banner-content-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 80px 60px 60px;
    z-index: 2;
    color: #fff;
}

.banner-top {
    text-align: center;
    margin-top: 20px;
}

.banner-title {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 25px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #fff;
}

.banner-summary {
    font-size: 20px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #fff;
    opacity: 0.95;
}

.banner-bottom {
    text-align: center;
    margin-bottom: 10px;
}

.banner-desc {
    font-size: 18px;
    margin-bottom: 15px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    color: #fff;
    opacity: 0.9;
}

/* ========== 核心团队区块 ========== */
.coreteam-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.coreteam-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.coreteam-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    flex: 0 0 calc(25% - 22.5px);
    min-width: 250px;
}

.coreteam-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.coreteam-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    position: relative;
}

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

.coreteam-card:hover .coreteam-image img {
    transform: scale(1.1);
}

.coreteam-info {
    padding: 25px 20px;
    text-align: center;
}

.coreteam-info h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.coreteam-position {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 500;
}

.coreteam-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.coreteam-card {
    cursor: pointer;
}

.coreteam-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.coreteam-link i {
    font-size: 11px;
    transition: transform 0.3s ease;
}

.coreteam-card:hover .coreteam-link {
    color: var(--primary-light);
}

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

.coreteam-empty {
    text-align: center;
    padding: 60px 0;
    color: var(--text-muted);
    font-size: 16px;
}

/* ========== 核心战略区块 ========== */
.strategy-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.strategy-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.strategy-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    flex: 0 0 calc(25% - 22.5px);
    min-width: 250px;
}

.strategy-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.strategy-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    position: relative;
}

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

.strategy-card:hover .strategy-image img {
    transform: scale(1.1);
}

.strategy-info {
    padding: 25px 20px;
    text-align: center;
}

.strategy-info h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.strategy-desc {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 500;
}

.strategy-detail {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.strategy-empty {
    text-align: center;
    padding: 60px 0;
    color: var(--text-muted);
    font-size: 16px;
}

/* ========== 微生态产品区块 ========== */
.product-cpwst-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.product-cpwst-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.product-cpwst-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    flex: 0 0 calc(20% - 24px);
    min-width: 200px;
}

.product-cpwst-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-cpwst-image {
    width: 150px;
    height: 150px;
    overflow: hidden;
    position: relative;
    margin: 0 auto;
    margin-top: 20px;
}

.product-cpwst-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: var(--transition);
}

.product-cpwst-card:hover .product-cpwst-image img {
    transform: scale(1.1);
}

.product-cpwst-info {
    padding: 25px 20px;
    text-align: center;
}

.product-cpwst-info h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.product-cpwst-summary {
    font-size: 16px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.product-cpwst-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-cpwst-empty {
    text-align: center;
    padding: 60px 0;
    color: var(--text-muted);
    font-size: 16px;
}

/* ========== 场景方案区块 ========== */
.scene-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 16px;
    color: var(--text-light);
}

.scene-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.scene-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

.scene-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.scene-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scene-icon i {
    font-size: 36px;
    color: var(--bg-white);
}

.scene-card h3 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 10px;
}

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

/* ========== 解决方案区块 ========== */
.solution-section {
    padding: 80px 0;
}

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

.solution-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.solution-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.solution-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 91, 172, 0.3) 100%);
}

.solution-content {
    padding: 25px;
}

.solution-content h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 12px;
}

.solution-content p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 500;
}

.solution-link i {
    margin-left: 5px;
    transition: var(--transition);
}

.solution-link:hover i {
    transform: translateX(5px);
}

/* ========== 案例展示区块 ========== */
.case-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.case-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.case-logo {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
    background: var(--bg-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-card h4 {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.case-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ========== 新闻资讯区块 ========== */
.news-section {
    padding: 80px 0;
}

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

.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.news-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.news-content h4 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-content h4 a {
    color: var(--text-color);
}

.news-content h4 a:hover {
    color: var(--primary-color);
}

.news-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 企业历程区块 ========== */
.history-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
}

.history-section .section-title h2,
.history-section .section-title p {
    color: var(--bg-white);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: rgba(255, 255, 255, 0.3);
}

.timeline-item {
    position: relative;
    padding: 20px 0;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    z-index: 1;
}

.timeline-content {
    width: 45%;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.timeline-year {
    font-size: 24px;
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.timeline-text {
    font-size: 14px;
    line-height: 1.6;
}

/* ========== 统计数据区块 ========== */
.stats-section {
    padding: 60px 0;
    background: var(--bg-white);
}

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

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

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
}

/* ========== 底部信息 ========== */
.footer {
    background: #1a1a1a;
    color: var(--bg-white);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 3fr 2fr 2fr 2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--bg-white);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-contact p {
    margin-bottom: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    margin-right: 10px;
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0rem;
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 10px 30px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--bg-white);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--bg-white);
}

.btn-lg {
    padding: 15px 40px;
    font-size: 16px;
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
    background: var(--bg-light);
    padding: 15px 0;
    margin-bottom: 30px;
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: 10px;
}

.breadcrumb-list li::after {
    content: '/';
    margin-left: 10px;
    color: var(--text-muted);
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    color: var(--text-light);
}

.breadcrumb-list a:hover {
    color: var(--primary-color);
}

.breadcrumb-list li:last-child {
    color: var(--primary-color);
}

/* ========== 列表页样式 ========== */
.list-section {
    padding: 40px 0 80px;
}

.list-header {
    margin-bottom: 30px;
}

.list-header h1 {
    font-size: 32px;
    color: var(--text-color);
    margin-bottom: 15px;
}

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

.list-item {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.list-item-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.list-item-content {
    padding: 20px;
}

.list-item-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.list-item-content h3 a {
    color: var(--text-color);
}

.list-item-content h3 a:hover {
    color: var(--primary-color);
}

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

/* ========== 详情页样式 ========== */
.detail-section {
    padding: 40px 0 80px;
}

.detail-header {
    margin-bottom: 30px;
}

.detail-header h1 {
    font-size: 32px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.detail-meta {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

.detail-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
}

.detail-content img {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: 8px;
}

.detail-content p {
    margin-bottom: 15px;
}

.detail-content h2,
.detail-content h3 {
    margin: 30px 0 15px;
}

/* ========== 分页样式 ========== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    display: inline-block;
    padding: 8px 15px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    transition: var(--transition);
}

.pagination a:hover,
.pagination span.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--bg-white);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .coreteam-card,
    .strategy-card {
        flex: 0 0 calc(33.333% - 20px);
    }

    .product-cpwst-card {
        flex: 0 0 calc(25% - 22.5px);
    }

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

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

@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }

    .header-content {
        height: 64px;
    }

    .banner-section {
        margin-top: 64px;
    }

    .coreteam-card,
    .strategy-card {
        flex: 0 0 calc(50% - 15px);
    }

    .product-cpwst-card {
        flex: 0 0 calc(33.333% - 20px);
    }

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

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

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

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

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

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

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        padding-left: 50px;
    }

    .timeline-dot {
        left: 20px;
    }

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

@media (max-width: 768px) {
    .coreteam-card,
    .strategy-card {
        flex: 0 0 100%;
    }

    .product-cpwst-card {
        flex: 0 0 calc(50% - 15px);
    }

    .coreteam-image {
        height: 250px;
    }

    .strategy-image {
        height: 250px;
    }

    .product-cpwst-image {
        height: 150px;
    }

    .banner-slide {
        height: 400px;
    }

    .company-banner-slider .banner-slide {
        height: 500px;
    }

    .banner-content h2,
    .banner-title {
        font-size: 32px;
    }

    .banner-content p {
        font-size: 18px;
    }

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

    .banner-description {
        font-size: 14px;
        top: 40px;
    }

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

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

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

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

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

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

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

    .section-title h2 {
        font-size: 28px;
    }
}

/* ========== 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;
}

/* ========== 工具类 ========== */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-20 {
    margin-top: 20px;
}

.mt-30 {
    margin-top: 30px;
}

.mt-40 {
    margin-top: 40px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-30 {
    margin-bottom: 30px;
}

.mb-40 {
    margin-bottom: 40px;
}

/* ========== 品牌封面样式 ========== */
.banner-cover {
    position: relative;
    height: 100vh;
    min-height: 700px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-cover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 91, 172, 0.85) 0%, rgba(0, 168, 168, 0.75) 50%, rgba(0, 91, 172, 0.85) 100%);
    z-index: 1;
}

.banner-cover-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 20px;
    max-width: 900px;
}

.cover-logo {
    margin-bottom: 30px;
}

.cover-logo img {
    height: 80px;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
}

.cover-company-name {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 25px;
    letter-spacing: 4px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
    color: #fff;
}

.cover-brand-slogan {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 20px;
    color: #FFD700;
    letter-spacing: 8px;
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.3);
}

.cover-description {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
    margin-bottom: 40px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

/* DNA螺旋装饰 */
.cover-decoration {
    position: absolute;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.15;
}

.dna-helix {
    width: 60px;
    height: 120px;
    border: 3px solid #fff;
    border-radius: 30px;
    position: relative;
}

.dna-helix::before,
.dna-helix::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: #FFD700;
    border-radius: 50%;
    left: 50%;
    transform: translateX(-50%);
}

.dna-helix::before {
    top: 15px;
}

.dna-helix::after {
    bottom: 15px;
}

/* 滚动提示 */
.cover-scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: bounce 2s infinite;
}

.cover-scroll-hint i {
    font-size: 24px;
    margin-top: 8px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ========== 权威背书模块样式 - 现代宽屏布局 ========== */
.endorsement-section {
    background: #fff;
    overflow: hidden;
}

/* 核心定位 Hero 区域 */
.endorsement-hero {
    position: relative;
    padding: 100px 0 80px;
    background: linear-gradient(135deg, #003D7A 0%, #005BAC 30%, #00A8A8 100%);
    overflow: hidden;
}

.endorsement-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.endorsement-hero-content {
    position: relative;
    text-align: center;
    color: #fff;
    z-index: 1;
}

.endorsement-badge {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(255, 215, 0, 0.2);
    border: 1px solid rgba(255, 215, 0, 0.4);
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    color: #FFD700;
    margin-bottom: 25px;
}

.endorsement-hero-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.endorsement-hero-title span {
    color: #FFD700;
    display: inline-block;
    padding: 0 15px;
    position: relative;
}

.endorsement-hero-divider {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #FFD700, transparent);
    margin: 0 auto 30px;
    border-radius: 2px;
}

.endorsement-hero-desc {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 1px;
}

.hero-desc-item {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

.hero-desc-divider {
    width: 6px;
    height: 6px;
    background: #FFD700;
    border-radius: 50%;
}

/* 背书卡片区域 */
.endorsement-cards-wrapper {
    padding: 60px 0 80px;
    background: linear-gradient(180deg, #f0f5fa 0%, #fff 100%);
}

.endorsement-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: -100px;
    position: relative;
    z-index: 2;
}

.endorsement-card {
    position: relative;
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 91, 172, 0.12);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.endorsement-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(0, 91, 172, 0.2);
}

.endorsement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: 20px 20px 0 0;
}

.endorsement-card.university::before {
    background: linear-gradient(90deg, #005BAC, #0074D9);
}

.endorsement-card.national::before {
    background: linear-gradient(90deg, #00A8A8, #00C9C9);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.endorsement-card.university .card-icon {
    background: linear-gradient(135deg, #005BAC 0%, #0074D9 100%);
}

.endorsement-card.national .card-icon {
    background: linear-gradient(135deg, #00A8A8 0%, #00C9C9 100%);
}

.card-icon i {
    font-size: 26px;
    color: #fff;
}

.card-label {
    font-size: 14px;
    font-weight: 600;
    color: #999;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.card-body {
    margin-bottom: 25px;
}

.card-title {
    font-size: 22px;
    font-weight: 700;
    color: #005BAC;
    margin-bottom: 15px;
    line-height: 1.4;
}

.card-text {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
    margin-bottom: 12px;
}

.card-text.highlight {
    color: #333;
    font-weight: 500;
    padding-left: 15px;
    border-left: 3px solid #FFD700;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.card-tags .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    border: 1px solid #e8e8e8;
    border-radius: 25px;
    font-size: 13px;
    color: #666;
    transition: all 0.3s ease;
}

.card-tags .tag i {
    color: #00A8A8;
    font-size: 14px;
}

.endorsement-card:hover .card-tags .tag {
    border-color: #005BAC;
    color: #005BAC;
}

.card-decoration {
    position: absolute;
    right: -30px;
    bottom: -30px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    opacity: 0.05;
    pointer-events: none;
}

.endorsement-card.university .card-decoration {
    background: #005BAC;
}

.endorsement-card.national .card-decoration {
    background: #00A8A8;
}

/* ========== 目录页样式 ========== */
.catalog-menu-section {
    padding: 80px 0;
    background: #fff;
}

.catalog-menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.catalog-card {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 12px;
    padding: 25px 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid #e8e8e8;
    transition: all 0.3s ease;
    cursor: pointer;
}

.catalog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 91, 172, 0.12);
    border-color: #005BAC;
}

.catalog-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.catalog-card:nth-child(1) .catalog-icon { background: linear-gradient(135deg, #005BAC 0%, #0074D9 100%); }
.catalog-card:nth-child(2) .catalog-icon { background: linear-gradient(135deg, #00A8A8 0%, #00C9C9 100%); }
.catalog-card:nth-child(3) .catalog-icon { background: linear-gradient(135deg, #5B7DB1 0%, #7BA3D4 100%); }
.catalog-card:nth-child(4) .catalog-icon { background: linear-gradient(135deg, #4A90A4 0%, #6BB5C9 100%); }
.catalog-card:nth-child(5) .catalog-icon { background: linear-gradient(135deg, #2E7D32 0%, #43A047 100%); }
.catalog-card:nth-child(6) .catalog-icon { background: linear-gradient(135deg, #E65100 0%, #FF9800 100%); }
.catalog-card:nth-child(7) .catalog-icon { background: linear-gradient(135deg, #7B1FA2 0%, #9C27B0 100%); }
.catalog-card:nth-child(8) .catalog-icon { background: linear-gradient(135deg, #C62828 0%, #EF5350 100%); }
.catalog-card:nth-child(9) .catalog-icon { background: linear-gradient(135deg, #1565C0 0%, #42A5F5 100%); }

.catalog-icon i {
    font-size: 26px;
    color: #fff;
}

.catalog-info h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 5px;
    font-weight: 600;
}

.catalog-info p {
    font-size: 13px;
    color: #999;
    margin: 0;
}

/* 响应式 */
@media (max-width: 992px) {
    .endorsement-cards {
        grid-template-columns: 1fr;
        margin-top: -60px;
    }

    .endorsement-hero {
        padding: 80px 0 60px;
    }

    .endorsement-hero-title {
        font-size: 32px;
    }

    .endorsement-hero-desc {
        flex-direction: column;
        gap: 10px;
    }

    .hero-desc-divider {
        display: none;
    }

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

@media (max-width: 768px) {
    .banner-cover {
        min-height: 600px;
        height: auto;
        padding: 100px 20px;
    }

    .cover-company-name {
        font-size: 24px;
        letter-spacing: 2px;
    }

    .cover-brand-slogan {
        font-size: 18px;
        letter-spacing: 4px;
    }

    .cover-description {
        font-size: 14px;
    }

    .catalog-menu-grid {
        grid-template-columns: 1fr;
    }

    .endorsement-card {
        padding: 25px;
    }

    .endorsement-hero-title {
        font-size: 26px;
    }

    .endorsement-hero-desc {
        font-size: 14px;
    }

    .hero-desc-item {
        padding: 6px 15px;
    }
}