/* ===== 导航栏 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.7);
    z-index: 1000;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #3d4c69;
    box-sizing: border-box;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo img {
    display: block;
    transition: filter 0.4s;
    width: 60%;
}

.header-logo:hover img {
    filter: drop-shadow(0 0 8px rgba(100, 180, 255, 0.6));
}

.header-menu {
    display: flex;
    align-items: center;
    gap: 80px;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 36px;
}

.header-nav a {
    color: #fff;
    font-size: 16px;
    text-decoration: none;
    position: relative;
    height: 100px;
    display: flex;
    align-items: center;
    transition: text-shadow 0.2s, transform 0.2s, color 0.2s;
}

.header-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #2baeed;
    transition: width 0.3s;
}

.header-nav a:hover {
    color: #2baeed;
    text-shadow: 0 0 8px rgba(43, 174, 237, 0.4);
    transform: translateY(-2px);
}

.header-nav a.active {
    color: #2baeed;
}

.header-nav a:hover::after,
.header-nav a.active::after {
    width: 24px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-right .lang-switch {
    color: #878b95;
    font-size: 16px;
    text-decoration: none;
    position: relative;
    transition: color 0.3s;
}

.header-right .lang-switch::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #878b95;
    transition: width 0.3s, background 0.3s;
}

.header-right .lang-switch:hover {
    color: #fff;
}

.header-right .lang-switch:hover::after {
    width: 100%;
    background: #fff;
}

.header-right .search-icon {
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0.6;
    filter: brightness(0) invert(0.55);
    transition: opacity 0.3s, filter 0.3s, transform 0.3s;
}

.header-right .search-icon:hover {
    opacity: 1;
    filter: brightness(0) invert(1);
    transform: scale(1.2) rotate(15deg);
}

.hamburger,
.mobile-nav,
.mobile-nav-mask {
    display: none;
}

/* ===== 二级菜单 ===== */
.sub-menu {
    position: fixed;
    top: 100px;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    z-index: 999;
    padding: 30px 0 40px;
    box-sizing: border-box;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
}

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

.sub-menu-title-text {
    font-size: 28px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 24px 0;
    letter-spacing: 2px;
}

.sub-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px 32px;
}

.sub-menu-grid a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    text-decoration: none;
    padding: 12px 16px;
    border: 1px solid transparent;
    border-radius: 4px;
    transition: all 0.2s;
    display: block;
    line-height: 1.6;
    position: relative;
    overflow: hidden;
}

.sub-menu-grid a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: #fff;
    transform: scaleY(0);
    transition: transform 0.2s;
}

.sub-menu-grid a:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(4px);
}

.sub-menu-grid a:hover::before {
    transform: scaleY(1);
}

/* ===== Banner ===== */
.banner {
    width: 100%;
    height: 100vh;
    position: relative;
}

.banner .swiper {
    width: 100%;
    height: 100%;
}

.banner .swiper-slide {
    background: url(../images/banner.png) center center / cover no-repeat;
    display: flex;
    align-items: center;
}

/* 轮播未启用时只显示第一屏 */
.banner .swiper-slide:not(:first-child) {
    display: none;
}

.banner-content {
}

.banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

.banner-content p {
    font-size: 30px;
    color: #fff;
    margin: 0 0 16px 0;
    line-height: 1.6;
    letter-spacing: 2px;
}

/* Banner 轮播分页器 */
.banner .swiper-pagination {
    bottom: 40px;
}

.banner .swiper-pagination-bullet {
    width: 30px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.4);
    opacity: 1;
    transition: all 0.3s;
}

.banner .swiper-pagination-bullet-active {
    width: 50px;
    background: #fff;
}

/* ===== 关于我们页面 Banner ===== */
.about-page .about-banner {
    height: 600px;
    position: relative;
}

.about-page .about-banner .swiper {
    height: 100%;
}

.about-page .about-banner .swiper-slide {
    background: url(../images/banner2.png) center center / cover no-repeat;
    height: 600px;
}

.about-page .about-banner .banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

/* ===== 关于我们区域 ===== */
.section-about {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
}

.about-title h2 {
    font-size: 30px;
    color: #fff;
    font-weight: bold;
    margin: 0;
}

/* ===== 关于我们链接导航 ===== */
.about-links-wrap {
    position: relative;
    background: #fff;
    border-bottom: 1px solid #ddd;
}

.about-links-scroll {
    overflow: hidden;
    padding: 0;
}

.about-links-inner {
    display: flex;
    align-items: center;
    gap: 0;
    white-space: nowrap;
    overflow-x: auto;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
    height: 80px;
}

.about-links-inner::-webkit-scrollbar {
    display: none;
}

.about-link {
    display: inline-block;
    padding: 0 24px;
    font-size: 16px;
    color: #333;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    transition: color 0.2s;
    flex-shrink: 0;
    line-height: 80px;
}

.about-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 24px;
    right: 24px;
    height: 2px;
    background: #004199;
    transform: scaleX(0);
    transition: transform 0.2s;
}

.about-link:hover::after,
.about-link.active::after {
    transform: scaleX(1);
}

.about-link:hover {
    color: #004199;
}

.about-link.active {
    color: #004199;
}

.about-links-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    border: none;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    transition: box-shadow 0.2s, transform 0.2s;
}

.about-links-btn:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    transform: translateY(-50%) scale(1.05);
}

/* ===== 企业简介内容区 ===== */
.section-about-content {
    background: #fff;
    padding: 60px 0 80px;
}

.about-content-logo {
    text-align: center;
    margin-bottom: 40px;
}

.about-content-logo img {
    display: inline-block;
}

.about-content-text p {
    font-size: 15px;
    color: #333;
    line-height: 2;
    text-align: justify;
    margin: 0 0 24px 0;
    text-indent: 2em;
}

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

/* ===== 构建量子时代全球安全屏障 ===== */
.section-cta {
    background: url(../images/bg7.png) center center / cover no-repeat;
    padding: 120px 0;
    text-align: center;
}

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

.cta-content h2 {
    font-size: 48px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 20px 0;
    letter-spacing: 4px;
    line-height: 1.3;
}

.cta-content > p {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 40px 0;
    letter-spacing: 2px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.cta-btn {
    display: inline-block;
    padding: 14px 36px;
    font-size: 18px;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    letter-spacing: 1px;
}

.cta-btn-primary {
    background: linear-gradient(90deg, #041b66, #004098);
    color: #fff;
    border: 1px solid #fff;
}

.cta-btn-primary:hover {
    opacity: 0.9;
}

.cta-btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.cta-btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

/* ===== 搜索弹窗 ===== */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 15, 30, 0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s, visibility 0.4s;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-overlay-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 600px;
    max-width: 90%;
    position: relative;
}

.search-input {
    flex: 1;
    height: 50px;
    background: transparent;
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 20px;
    outline: none;
    transition: border-color 0.3s;
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.search-input:focus {
    border-bottom-color: #fff;
}

.search-submit {
    width: 28px;
    height: 28px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s, transform 0.3s;
    flex-shrink: 0;
}

.search-submit:hover {
    opacity: 1;
    transform: scale(1.15);
}

.search-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 30px;
    height: 30px;
    cursor: pointer;
}

.search-close::before,
.search-close::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.6);
    transition: background 0.3s;
}

.search-close::before {
    transform: rotate(45deg);
}

.search-close::after {
    transform: rotate(-45deg);
}

.search-close:hover::before,
.search-close:hover::after {
    background: #fff;
}

/* ===== 公共模块标题 ===== */
.section {
    position: relative;
    padding: 60px 0;
    box-sizing: border-box;
}

.section-title {
    margin-bottom: 20px;
}

.section-title.left h2 {
    text-align: left;
}

.section-title.center {
    text-align: center;
}

.section-title h2 {
    font-size: 36px;
    color: #fff;
    font-weight: bold;
    margin: 0;
    display: inline-block;
    position: relative;
    padding-bottom: 12px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: #fff;
}

.section-title.center h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-subtitle {
    font-size: 20px;
    color: #fff;
    margin: 0 0 16px 0;
    font-weight: bold;
}

.section-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 30px 0;
    line-height: 1.8;
}

.section-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: #004199;
    color: #fff;
    font-size: 16px;
    border-radius: 30px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
}

.section-more::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.section-more:hover {
    box-shadow: 0 6px 20px rgba(0, 65, 153, 0.5);
}

.section-more:hover::before {
    left: 100%;
}

.section-more img {
    height: auto;
    transition: transform 0.25s;
}

.section-more:hover img {
    transform: translateX(6px) scale(1.1);
}

/* ===== 国家战略级定位 ===== */
.section-position {
    background: url(../images/bg1.png) center center / cover no-repeat;
    padding: 160px 0;
}

.section-position .w {
    display: flex;
    align-items: center;
    gap: 60px;
}

.section-position-left {
    flex-shrink: 0;
    width: 340px;
}

.section-position-cards {
    display: flex;
    gap: 20px;
    flex: 1;
}

.position-card {
    flex: 1;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    aspect-ratio: 330 / 480;
    transition: transform 0.25s, box-shadow 0.25s;
}

.position-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.position-card .card-img {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
}

.position-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s;
}

.position-card:hover .card-img img {
    transform: scale(1.08);
}

.position-card .card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(to top, rgba(0, 40, 120, 0.95), rgba(0, 65, 153, 0.7));
    transition: height 0.3s;
}

.position-card .card-body {
    position: absolute;
    bottom: 5%;
    left: 0;
    width: 100%;
    padding: 0 24px;
    box-sizing: border-box;
    z-index: 1;
    transition: top 0.3s, bottom 0.3s;
}

.position-card .card-num {
    font-size: 36px;
    color: #fff;
    font-weight: bold;
    display: block;
    margin-bottom: 8px;
    height: 60px;
}

.position-card .card-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.position-card .card-body h3 {
    font-size: 20px;
    color: #fff;
    margin: 0;
    line-height: 1.5;
    font-weight: bold;
    flex: 1;
}

.position-card .card-body p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin: 16px 0 0 0;
    line-height: 1.8;
    display: none;
}

.position-card .card-arrow {
    width: 32px;
    height: 32px;
    min-width: 0;
    border: 1px solid rgba(255, 255, 255, 1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    box-sizing: content-box;
    flex-shrink: 0;
    transition: opacity 0.2s, transform 0.2s;
    box-sizing: border-box;
}

.position-card .card-arrow img {
    display: block;
}

/* hover 状态 */
.position-card:hover .card-overlay {
    height: 55%;
}

.position-card:hover .card-body {
    bottom: auto;
    top: 39%;
}

.position-card:hover .card-body p {
    display: block;
}

.position-card:hover .card-arrow {
    opacity: 0;
    transform: translateX(10px) scale(0.8);
}

/* ===== 核心竞争壁垒 ===== */
.section-advantage {
    background: url(../images/bg2.png) center center / cover no-repeat;
    padding: 160px 0;
}

.section-advantage-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 40px;
}

.section-advantage-text {
    flex: 1;
}

.section-more-light {
    background: #fff;
    color: #004199;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
}

.section-more-light::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 65, 153, 0.08), transparent);
    transition: left 0.5s;
}

.section-more-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.section-more-light:hover::before {
    left: 100%;
}

.section-more-light img {
    filter: none;
    transition: transform 0.25s;
}

.section-more-light:hover img {
    transform: translateX(6px) scale(1.1);
}

.section-advantage-cards {
    display: flex;
    gap: 0;
}

.advantage-card {
    flex: 1;
    padding: 40px 30px 30px;
    text-align: center;
    box-sizing: border-box;
    position: relative;
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s, box-shadow 0.25s;
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    z-index: 2;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 135px;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.advantage-card:nth-child(odd) {
    background: #041a65;
}

.advantage-card:nth-child(even) {
    background: #004199;
}

.advantage-icon {
    margin-bottom: 50px;
    animation-duration: 3s;
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
    transition: transform 0.25s;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.2);
}

.advantage-card:nth-child(1) .advantage-icon {
    animation-name: icon-float;
}

.advantage-card:nth-child(2) .advantage-icon {
    animation-name: icon-pulse;
}

.advantage-card:nth-child(3) .advantage-icon {
    animation-name: icon-rotate;
}

.advantage-card:nth-child(4) .advantage-icon {
    animation-name: icon-spin;
}

@keyframes icon-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes icon-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes icon-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes icon-spin {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(15deg); }
    75% { transform: rotate(-15deg); }
}

.advantage-card h3 {
    font-size: 20px;
    color: #fff;
    margin: 0 0 12px 0;
    font-weight: bold;
}

.advantage-stat {
    font-size: 24px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 16px;
    display: inline-block;
    position: relative;
    padding-bottom: 8px;
}

.stat-num {
    display: inline-block;
    min-width: 2ch;
    text-align: right;
}

.advantage-stat::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: #fff;
}

.advantage-card p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    line-height: 1.7;
}

/* ===== 全栈业务布局 ===== */
.section-business {
    background: url(../images/bg3.png) center center / cover no-repeat;
    overflow: hidden;
}

.section-business .w {
    display: flex;
    align-items: center;
    gap: 40px;
}

.section-business-left {
    flex-shrink: 0;
    width: 320px;
    z-index: 2;
}

.section-business-right {
    flex: 1;
    position: relative;
    min-height: 600px;
}

.business-earth {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    object-fit: contain;
    z-index: 1;
}

.business-earth-bg {
    position: absolute;
    top: 27%;
    left: 49%;
    transform: translate(-50%, -30%);
    object-fit: contain;
    z-index: 0;
}

.business-orbit {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.orbit-item {
    position: absolute;
    text-align: center;
    cursor: pointer;
}

.orbit-tl { top: 28%; left: 12%; }
.orbit-tr { top: 10%; right: 15%; }
.orbit-bl { bottom: 8%; left: 18%; }
.orbit-br { bottom: 17%; right: 8%; }

.orbit-ball {
    width: 90px;
    height: 90px;
    margin: 0 auto 12px;
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s;
    animation: ball-bounce 3s ease-in-out infinite;
}

.orbit-item:nth-child(2) .orbit-ball { animation-delay: 0.5s; }
.orbit-item:nth-child(3) .orbit-ball { animation-delay: 1s; }
.orbit-item:nth-child(4) .orbit-ball { animation-delay: 1.5s; }

@keyframes ball-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.orbit-ball img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.orbit-item:hover .orbit-ball {
    transform: scale(1.15);
}

.orbit-label-wrap {
    position: relative;
    display: inline-block;
}

.label-border {
    height: auto;
    display: block;
}

.orbit-label {
    position: absolute;
    top: 41%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
    color: #fff;
    font-weight: bold;
    white-space: nowrap;
    z-index: 1;
}

.orbit-tl .orbit-label {
    top: 0;
}

.business-desc-boxes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
}

.business-desc {
    position: absolute;
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
    background: rgba(103, 167, 254, 0.4);
    border-radius: 10px;
    padding: 16px 20px;
    width: 230px;
}

.business-desc p {
    font-size: 14px;
    color: #fff;
    line-height: 1.8;
    text-align: left;
    margin: 0;
}

.business-desc-1 { top: 48%; left: 5%; }
.business-desc-2 { top: 32%; right: 8%; }
.business-desc-3 { bottom: 15%; left: -5%; }
.business-desc-4 { bottom: 15%; right: -15%; }

.business-desc.active {
    opacity: 1;
}

/* ===== 发展历程 ===== */
.section-timeline {
    background: url(../images/bg4.png) center center / cover no-repeat;
    padding-bottom: 60px;
}

.center-subtitle {
    text-align: center;
    margin-top: -10px;
    margin-bottom: 100px;
}

.timeline-swiper-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    z-index: 1;
}

.timeline-node-slide {
    width: 180px !important;
    height: 490px;
    position: relative;
    z-index: 1;
}

.swiper-slide-duplicate {
    z-index: 1;
}

.timeline-node-slide .timeline-node {
    position: relative;
    width: auto;
    height: 100%;
    text-align: center;
    padding: 0 10px;
    display: flex;
    flex-direction: column;
}

/*
 * 波浪：绝对定位在swiper-wrapper内，
 * swiper-wrapper的transform会带着它一起动
 */
.timeline-wave {
    position: absolute;
    top: 50%;
    left: -360px;
    transform: translateY(-50%);
    z-index: 0;
    pointer-events: none;
}

.timeline-wave canvas {
    display: block;
    height: 210px;
}

.timeline-node {
    position: relative;
    text-align: center;
    z-index: 5;
}

.node-top {
    justify-content: flex-start;
    padding-top: 30px;
}

.node-bottom {
    justify-content: flex-end;
    padding-bottom: 30px;
}

/* 节点头部：icon + 日期同行 */
.node-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 8px;
}

.node-bottom .node-header {
    margin-bottom: 0;
    margin-top: 8px;
}

.node-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.node-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 日期：用i11图片作为边框，文字绝对居中 */
.node-date {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.node-date .date-bg {
    display: block;
}

.node-date span {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    color: #fff;
    white-space: nowrap;
    padding-left: 4px;
}

.node-date.active span {
    color: #fff;
}

.node-line {
    width: 2px;
    height: 85px;
    background: repeating-linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.4) 0,
        rgba(255, 255, 255, 0.4) 4px,
        transparent 4px,
        transparent 8px
    );
    margin: 0 auto;
}

.node-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #0f172a;
    border: 2px solid #fff;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.node-top p,
.node-bottom p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin: 8px 0 0;
    line-height: 1.6;
    white-space: nowrap;
}

.node-bottom p {
    margin: 0 0 8px;
}

/* 未来节点样式 */
.node-future p {
    color: #fbd95b !important;
}

.node-future .node-date span {
    color: #fbd95b !important;
}

/* 描述框：默认隐藏，hover时显示在时间线中间区域 */
.node-desc {
    display: none;
    position: absolute;
    left: 50%;
    top: 100px;
    transform: translateX(-50%);
    width: 280px;
    padding: 16px 20px;
    background: rgba(30, 80, 160, 0.95);
    border: 1px solid #fff;
    border-radius: 8px;
    font-size: 14px;
    color: #fff;
    line-height: 1.8;
    text-align: left;
    z-index: 10;
    pointer-events: none;
    box-sizing: border-box;
}

.timeline-node:hover .node-desc {
    display: block;
}

.node-bottom:hover .node-desc {
    top: auto; 
    bottom: 100px;
    transform: translateX(-50%);
}

/* ===== 携手同行 共筑安全 ===== */
.section-partner {
    background: url(../images/bg5.png) center center / cover no-repeat;
    padding-bottom: 80px;
}

.partner-subtitle {
    text-align: center;
    margin-top: -10px;
    margin-bottom: 50px;
}

.partner-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.partner-row {
    display: flex;
    justify-content: center;
    gap: 12px;
    width: 100%;
}

.partner-row:nth-child(2),
.partner-row:nth-child(4) {
    justify-content: space-between;
}

.partner-logo {
    width: 230px;
    aspect-ratio: 230 / 100;
    display: block;
    padding: 0;
    box-sizing: border-box;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.25s, filter 0.25s, box-shadow 0.25s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    background: transparent;
    filter: drop-shadow(0 0 0 transparent);
    border: 2px solid transparent;
}

.partner-row:nth-child(2) .partner-logo,
.partner-row:nth-child(4) .partner-logo {
    flex: 1;
    max-width: 230px;
}

.partner-logo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: fill;
    transition: transform 0.3s;
}

.partner-logo:hover {
    transform: translateY(-6px) scale(1.05);
    filter: drop-shadow(0 12px 20px rgba(100, 180, 255, 0.5));
    border-color: rgba(100, 180, 255, 0.4);
}

.partner-logo:hover img {
    transform: scale(1.08);
}

/* ===== 新闻与洞察 ===== */
.section-news {
    background: url(../images/bg6.png) center center / cover no-repeat;
    padding: 100px 0;
    overflow: visible;
}

.news-container {
    display: flex;
    gap: 40px;
    position: relative;
}

.news-left {
    flex: 0 0 700px;
}

.news-left .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.news-left .section-title h2 {
    font-size: 36px;
    color: #fff;
    font-weight: bold;
    margin: 0;
    display: inline-block;
    position: relative;
    padding-bottom: 12px;
}

.news-left .section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: #fff;
}

.news-small-cards {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.news-small-card {
    flex: 1;
    position: relative;
    display: block;
    background: #fff;
    border-radius: 0;
    border: 2px solid transparent;
    overflow: visible;
    padding: 20px;
    box-sizing: border-box;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.news-small-card .card-thumb {
    width: 100%;
    aspect-ratio: 290 / 200;
    overflow: hidden;
    position: relative;
}

.news-small-card .card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 0;
    transition: transform 0.3s ease;
}

.news-small-card:hover .card-thumb img {
    transform: scale(1.1);
}

.news-small-card .card-date {
    position: absolute;
    bottom: 0;
    left: 0;
    background: #0a3a7a;
    color: #fff;
    font-size: 16px;
    padding: 6px 15px;
    z-index: 2;
}

.news-small-card h3 {
    font-size: 18px;
    line-height: 1.6;
    padding: 12px 0;
    margin: 0;
    font-weight: normal;
    color: #1a1a1a;
    transition: color 0.2s;
}

.news-small-card:hover h3 {
    color: #0a3a7a;
}

.news-small-card p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-small-card .more-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: #0a3a7a;
    padding: 10px 0 0;
}

.news-small-card:hover .more-link {
    gap: 8px;
}

.news-right {
    flex: 0 0 700px;
    position: relative;
    overflow: hidden;
}

.news-carousel-container {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.news-carousel-container .swiper {
    width: 100%;
    overflow: hidden;
}

.news-carousel-container .swiper-wrapper {
    position: relative;
}

.news-carousel-container .swiper-slide {
    position: relative;
    width: 100%;
}

.news-carousel {
    width: 100%;
    aspect-ratio: 700 / 470;
    overflow: hidden;
    position: relative;
}

.news-carousel img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.swiper-slide:hover .news-carousel img {
    transform: scale(1.08);
}

.news-carousel::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 20, 63, 0.3), transparent 50%);
    opacity: 0;
    transition: opacity 0.25s;
    pointer-events: none;
}

.swiper-slide:hover .news-carousel::after {
    opacity: 1;
}

.news-text-box {
    position: relative;
    left: 0;
    right: 0;
    background: rgba(0, 65, 153, 0.6);
    padding: 24px 30px;
    box-sizing: border-box;
    min-height: 130px;
}

.news-bg-extend {
    position: absolute;
    left: 700px;
    right: -100vw;
    bottom: 0;
    height: 120px;
    background: rgba(0, 65, 153, 0.6);
    z-index: 1;
    box-sizing: border-box;
}

.news-bg-extend-bar {
    position: absolute;
    left: 100%;
    right: -100vw;
    bottom: 0;
    height: 240px;
    /*background: rgba(0, 65, 153, 0.6);*/
    z-index: 1;
}

.news-text-box .text-box-inner h3 {
    font-size: 18px;
    color: #fff;
    margin: 0 0 10px;
    font-weight: 600;
}

.news-text-box .text-box-inner p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-pagination {
    display: none;
}

.news-prev,
.news-next {
    width: 60px;
    height: 60px;
    background: transparent;
    border-radius: 0;
    top: auto;
    bottom: 160px;
    margin: 0;
}

.news-prev::after,
.news-next::after {
    display: none;
}

.news-prev {
    background: url(../images/prev.png) center center / contain no-repeat;
    right: 0px;
    bottom: 190px;
    left: auto;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.news-prev:hover {
    opacity: 1;
}

.news-next {
    background: url(../images/next.png) center center / contain no-repeat;
    right: 0px;
    bottom: 130px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.news-next:hover {
    opacity: 1;
}

/* ===== 底部 ===== */
.footer {
    background: #00143f;
    padding: 50px 0 0;
}

.footer-main {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand {
    flex-shrink: 0;
    text-align: center;
}

.footer-logo {
    display: block;
    margin: 0 auto 16px;
}

.footer-brand p {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    letter-spacing: 2px;
}

.footer-links {
    display: flex;
    flex: 1;
    justify-content: center;
    gap: 0;
}

.footer-col {
    padding: 0 40px;
    position: relative;
}

.footer-col:first-child::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.footer-col:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
}

.footer-col h4 {
    font-size: 18px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 16px 0;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 20px;
    height: 2px;
    background: #fff;
}

.footer-col-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 50px;
}

.footer-col-links a {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.2s, transform 0.2s;
    white-space: nowrap;
    display: inline-block;
}

.footer-col-links a:hover {
    color: #fff;
    transform: translateX(4px);
}

.footer-contact p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 10px 0;
    line-height: 1.6;
    /*white-space: nowrap;*/
}

.footer-qrcode {
    flex-shrink: 0;
    text-align: center;
}

.footer-qrcode img {
    display: block;
    margin: 0 auto 10px;
}

.footer-qrcode p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.4);
    margin: 0;
}

/* ===== 产品中心页面 Banner ===== */
.product-page .product-banner {
    height: 600px;
    position: relative;
}

.product-page .product-banner .swiper {
    height: 100%;
}

.product-page .product-banner .swiper-slide {
    background: url(../images/banner3.png) center center / cover no-repeat;
    height: 600px;
}

.product-page .product-banner .banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

/* ===== 产品中心区域 ===== */
.section-product {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
}

.product-title h2 {
    font-size: 30px;
    color: #fff;
    font-weight: bold;
    margin: 0;
}

/* ===== 产品中心链接导航 ===== */
.product-links-wrap {
    position: relative;
    background: #fff;
    border-bottom: 1px solid #ddd;
}

.product-links-scroll {
    overflow: hidden;
    padding: 0;
}

.product-links-inner {
    display: flex;
    align-items: center;
    gap: 0;
    white-space: nowrap;
    overflow-x: auto;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
    height: 80px;
}

.product-links-inner::-webkit-scrollbar {
    display: none;
}

.product-link {
    display: inline-block;
    padding: 0 24px;
    font-size: 16px;
    color: #333;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    transition: color 0.2s;
    flex-shrink: 0;
    line-height: 80px;
}

.product-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 24px;
    right: 24px;
    height: 2px;
    background: #004199;
    transform: scaleX(0);
    transition: transform 0.2s;
}

.product-link:hover::after,
.product-link.active::after {
    transform: scaleX(1);
}

.product-link:hover {
    color: #004199;
}

.product-link.active {
    color: #004199;
}

.product-links-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    border: none;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    transition: box-shadow 0.2s, transform 0.2s;
}

.product-links-btn:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    transform: translateY(-50%) scale(1.05);
}

/* ===== 产品内容区 ===== */
.section-product-content {
    background: #fff;
    padding: 80px 0 100px;
}

.product-intro {
    font-size: 24px;
    color: #333;
    line-height: 1.8;
    margin: 0 0 50px 0;
    text-align: justify;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.product-card {
    background: #f0f4ff;
    border-radius: 8px;
    padding: 40px 36px;
    box-sizing: border-box;
}

.product-card-full {
    grid-column: 1 / -1;
}

.product-card-num {
    display: block;
    font-size: 60px;
    font-weight: bold;
    color: #004199;
    line-height: 1;
    margin-bottom: 16px;
}

.product-card h3 {
    font-size: 24px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0 0 20px 0;
    line-height: 1.4;
}

.product-card > p {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    margin: 0 0 16px 0;
    text-indent: 2em;
}

.product-card ul {
    margin: 0 0 16px 0;
    padding-left: 20px;
}

.product-card ul li {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 8px;
    list-style: disc;
}

.product-card ul li:last-child {
    margin-bottom: 0;
}

.product-card-desc {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    margin: 0 !important;
}

/* ===== 解决方案页面 Banner ===== */
.solution-page .solution-banner {
    height: 600px;
    position: relative;
}

.solution-page .solution-banner .swiper {
    height: 100%;
}

.solution-page .solution-banner .swiper-slide {
    background: url(../images/banner4.png) center center / cover no-repeat;
    height: 600px;
}

.solution-page .solution-banner .banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

/* ===== 解决方案区域 ===== */
.section-solution {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
}

.solution-title h2 {
    font-size: 30px;
    color: #fff;
    font-weight: bold;
    margin: 0;
}

/* ===== 解决方案链接导航 ===== */
.solution-links-wrap {
    position: relative;
    background: #fff;
    border-bottom: 1px solid #ddd;
}

.solution-links-scroll {
    overflow: hidden;
    padding: 0;
}

.solution-links-inner {
    display: flex;
    align-items: center;
    gap: 0;
    white-space: nowrap;
    overflow-x: auto;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
    height: 80px;
}

.solution-links-inner::-webkit-scrollbar {
    display: none;
}

.solution-link {
    display: inline-block;
    padding: 0 24px;
    font-size: 16px;
    color: #333;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    transition: color 0.2s;
    flex-shrink: 0;
    line-height: 80px;
}

.solution-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 24px;
    right: 24px;
    height: 2px;
    background: #004199;
    transform: scaleX(0);
    transition: transform 0.2s;
}

.solution-link:hover::after,
.solution-link.active::after {
    transform: scaleX(1);
}

.solution-link:hover {
    color: #004199;
}

.solution-link.active {
    color: #004199;
}

.solution-links-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    border: none;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    transition: box-shadow 0.2s, transform 0.2s;
}

.solution-links-btn:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    transform: translateY(-50%) scale(1.05);
}

/* ===== 解决方案内容区 ===== */
.section-solution-content {
    background: #f5faff;
    padding: 80px 0 100px;
}

.solution-intro {
    font-size: 24px;
    color: #333;
    line-height: 1.8;
    margin: 0 0 50px 0;
    text-align: justify;
}

/* ===== 行业痛点 ===== */
.solution-pain-header {
    text-align: center;
    margin-bottom: 50px;
}

.solution-pain-header h2 {
    font-size: 40px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0;
    position: relative;
    display: inline-block;
}

.solution-pain-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: #004199;
}

.solution-pain-body {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.solution-pain-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.pain-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.pain-icon {
    flex-shrink: 0;
    margin-top: 3px;
}

.pain-item p {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    margin: 0;
}

.solution-pain-right {
    flex-shrink: 0;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.pain-image {
    width: 639px;
    height: 355px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    background-color: #c0dbfe;
    padding: 20px 20px 0px 20px;
}

.solution-pain-right::after {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
    transform: skewX(-20deg);
    transition: none;
    pointer-events: none;
    z-index: 1;
}

.solution-pain-right:hover::after {
    left: 125%;
    transition: left 0.6s ease;
}

/* ===== 解决方案架构 ===== */
.section-solution-arch {
    background: url(../images/bg.jpg) center center / cover no-repeat;
    padding: 80px 0 100px;
}

.solution-arch-header {
    text-align: center;
    margin-bottom: 20px;
}

.solution-arch-header h2 {
    font-size: 40px;
    color: #fff;
    font-weight: bold;
    margin: 0;
    position: relative;
    display: inline-block;
}

.solution-arch-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: #fff;
}

.solution-arch-subtitle {
    text-align: center;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 50px 0;
    line-height: 1.6;
}

.solution-arch-grid {
    display: flex;
    gap: 20px;
}

.arch-card {
    flex: 1;
    background: #fff;
    border-radius: 4px;
    padding: 36px 28px;
    box-sizing: border-box;
    text-align: center;
    box-shadow: 0 0 0 rgba(100, 160, 255, 0);
    transition: box-shadow 0.3s ease;
}

.arch-card:hover {
    box-shadow: 0 0 30px rgba(100, 160, 255, 0.5), 0 0 60px rgba(100, 160, 255, 0.25), 0 0 90px rgba(100, 160, 255, 0.1);
}

.arch-card h3 {
    font-size: 24px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0 0 26px 0;
    position: relative;
    display: block;
    text-align: center;
}

.arch-card h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #004199;
    z-index: 1;
}

.arch-card h3::before {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    height: 1px;
    background: #ddd;
}

.arch-card p {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
    margin: 20px 0 0 0;
    text-align: left;
}

/* ===== 核心功能 ===== */
.section-solution-features {
    background: #fff;
    padding: 80px 0 100px;
}

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

.solution-features-header h2 {
    font-size: 40px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0;
    position: relative;
    display: inline-block;
}

.solution-features-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: #004199;
}

.solution-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feature-card {
    background: #f1f1f1;
    border-radius: 4px;
    padding: 32px 28px;
    box-sizing: border-box;
    box-shadow: 0 0 0 rgba(0, 65, 153, 0);
    transition: box-shadow 0.3s ease;
}

.feature-card:hover {
    box-shadow: 0 0 20px rgba(0, 65, 153, 0.2), 0 0 40px rgba(0, 65, 153, 0.08);
}

.feature-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.feature-icon {
    display: block;
    flex-shrink: 0;
}

.feature-card h3 {
    font-size: 24px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0;
    line-height: 1.4;
}

.feature-card p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* ===== 方案优势 ===== */
.section-solution-advantage {
    background: #f5faff;
    padding: 80px 0 100px;
}

.solution-advantage-header {
    text-align: center;
    margin-bottom: 50px;
}

.solution-advantage-header h2 {
    font-size: 40px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0;
    position: relative;
    display: inline-block;
}

.solution-advantage-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: #004199;
}

.solution-advantage-body {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.solution-advantage-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.advantage-icon {
    flex-shrink: 0;
    margin-top: 3px;
}

.advantage-item p {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    margin: 0;
}

.advantage-item p strong {
    color: #1a1a1a;
    font-weight: bold;
}

.solution-advantage-right {
    flex-shrink: 0;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.advantage-image {
    width: 639px;
    height: 355px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    background-color: #c0dbfe;
    padding: 20px 20px 0px 20px;
}

.solution-advantage-right::after {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
    transform: skewX(-20deg);
    transition: none;
    pointer-events: none;
    z-index: 1;
}

.solution-advantage-right:hover::after {
    left: 125%;
    transition: left 0.6s ease;
}

/* ===== 案例中心页面 Banner ===== */
.case-page .case-banner {
    height: 600px;
    position: relative;
}

.case-page .case-banner .swiper {
    height: 100%;
}

.case-page .case-banner .swiper-slide {
    background: url(../images/banner5.png) center center / cover no-repeat;
    height: 600px;
}

.case-page .case-banner .banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

/* ===== 案例中心区域 ===== */
.section-case {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
}

.case-title h2 {
    font-size: 30px;
    color: #fff;
    font-weight: bold;
    margin: 0;
}

/* ===== 案例内容区通用 ===== */
.section-case-diplomatic {
    background: #f5faff;
    padding: 80px 0 100px;
}

.section-case-beltroad {
    background: #ffffff;
    padding: 80px 0 100px;
}

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

.case-section-header h2 {
    font-size: 40px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0;
    position: relative;
    display: inline-block;
}

.case-section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: #004199;
}

.case-item {
    display: flex;
    /*flex-direction: column;*/
    gap: 30px;
    justify-content: space-between;
    align-items: flex-end;
}

.case-item-full {
    width: 100%;
}

.case-item-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.case-item-icon {
    flex-shrink: 0;
}

.case-item-title h3 {
    font-size: 24px;
    color: #004199;
    font-weight: bold;
    margin: 0;
    line-height: 1.4;
}

.case-item-desc {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    margin: 0;
}

.case-item-body {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.case-item-left {
    flex: 1;
}

.case-item-solution h4,
.case-item-result h4 {
    font-size: 18px;
    color: #cc0000;
    font-weight: bold;
    margin: 0 0 16px 0;
}

.case-item-solution p,
.case-item-result p {
    font-size: 18px;
    color: #555;
    line-height: 2;
    margin: 0 0 8px 0;
    text-indent: 2em;
}

.case-item-right {
    flex-shrink: 0;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.case-item-image {
    width: 639px;
    height: 355px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    background-color: #c0dbfe;
    padding: 20px 20px 0px 20px;
}

.case-item-right::after {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
    transform: skewX(-20deg);
    transition: none;
    pointer-events: none;
    z-index: 1;
}

.case-item-right:hover::after {
    left: 125%;
    transition: left 0.6s ease;
}

/* ===== 新闻中心页面 Banner ===== */
.news-page .news-banner {
    height: 600px;
    position: relative;
}

.news-page .news-banner .swiper {
    height: 100%;
}

.news-page .news-banner .swiper-slide {
    background: url(../images/banner6.png) center center / cover no-repeat;
    height: 600px;
}

.news-page .news-banner .banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

/* ===== 新闻中心悬浮条 ===== */
.news-page .news-banner-section {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
}

.news-page .news-banner-title h2 {
    font-size: 30px;
    color: #fff;
    font-weight: bold;
    margin: 0;
}

/* ===== 新闻列表 ===== */
.section-news-list {
    background: #fff;
    padding: 80px 0 100px;
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-list-item {
    display: flex;
    gap: 60px;
    align-items: flex-start;
    padding: 40px 0;
    border-bottom: 1px dashed #ddd;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.news-list-item:hover {
    opacity: 0.8;
}

.news-list-item:last-child {
    border-bottom: none;
}

.news-list-date {
    flex-shrink: 0;
    width: 140px;
    font-size: 22px;
    color: #333;
    font-weight: 500;
}

.news-list-content {
    flex: 1;
}

.news-list-content h3 {
    font-size: 28px;
    color: #004199;
    font-weight: normal;
    margin: 0 0 16px 0;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.news-list-item:hover .news-list-content h3 {
    color: #0066cc;
    text-decoration: underline;
}

.news-list-content p {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* ===== 分页 ===== */
.news-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 60px;
    padding: 0 20px;
}

.pagination-arrow {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    position: relative;
}

.pagination-arrow:hover {
    background: #e0e0e0;
}

.pagination-prev::after {
    content: '';
    width: 12px;
    height: 12px;
    border-left: 2px solid #999;
    border-bottom: 2px solid #999;
    transform: rotate(45deg);
    margin-left: 4px;
}

.pagination-next::after {
    content: '';
    width: 12px;
    height: 12px;
    border-right: 2px solid #999;
    border-top: 2px solid #999;
    transform: rotate(45deg);
    margin-right: 4px;
}

.pagination-pages {
    display: flex;
    gap: 20px;
}

.pagination-page {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #333;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.pagination-page:hover {
    color: #cc0000;
}

.pagination-page.active {
    color: #cc0000;
    font-weight: 500;
}

/* ===== 新闻详情页 ===== */
.news-detail-page {
    background: #fff;
}

.news-detail-page .header {
    background: #0b204e;
}

.section-news-detail {
    background: #fff;
    padding: 160px 0 100px;
    min-height: 600px;
}

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

.news-detail-header h1 {
    font-size: 48px;
    color: #004199;
    font-weight: bold;
    margin: 0 0 30px 0;
    line-height: 1.4;
}

.news-detail-meta {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.news-detail-meta span {
    font-size: 22px;
    color: #666;
}

.news-detail-divider {
    width: 100%;
    height: 1px;
    border-top: 1px dashed #ddd;
    margin: 40px 0;
}

.news-detail-content {
    /*max-width: 900px;*/
    margin: 0 auto;
}

.news-detail-content p {
    font-size: 18px;
    color: #333;
    line-height: 2;
    margin: 0 0 24px 0;
    text-indent: 2em;
}

.news-detail-image {
    text-align: center;
    margin: 40px 0;
}

.news-detail-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* ===== 联系我们页面 Banner ===== */
.contact-page .contact-banner {
    height: 600px;
    position: relative;
}

.contact-page .contact-banner .swiper {
    height: 100%;
}

.contact-page .contact-banner .swiper-slide {
    background: url(../images/banner2.png) center center / cover no-repeat;
    height: 600px;
}

.contact-page .contact-banner .banner-content h1 {
    font-size: 72px;
    color: #fff;
    font-weight: bold;
    margin: 0 0 30px 0;
    letter-spacing: 4px;
    line-height: 1.2;
}

/* ===== 联系我们悬浮条 ===== */
.contact-page .contact-banner-section {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: rgba(15, 23, 42, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
}

.contact-page .contact-banner-title h2 {
    font-size: 30px;
    color: #fff;
    font-weight: bold;
    margin: 0;
}

/* ===== 联系我们内容区 ===== */
.section-contact-content {
    background: url(../images/bg2.jpg) center center / cover no-repeat;
    padding: 80px 0 100px;
}

/* 总部地址 */
.contact-hq {
    margin-bottom: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid #ddd;
}

.contact-hq-title {
    font-size: 30px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0 0 16px 0;
}

.contact-hq-company {
    font-size: 25px;
    color: #004199;
    margin: 0 0 30px 0;
}

.contact-hq-info {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.contact-hq-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-hq-icon {
    flex-shrink: 0;
}

.contact-hq-item span {
    font-size: 18px;
    color: #555;
}

/* 区域中心与海外分支机构 */
.contact-regions {
    display: flex;
    gap: 80px;
    margin-bottom: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid #ddd;
}

.contact-regions-left {
    flex: 1;
}

.contact-regions-right {
    flex: 1;
}

.contact-region-title {
    font-size: 30px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0 0 20px 0;
}

.contact-region-subtitle {
    font-size: 25px;
    color: #004199;
    font-weight: bold;
    margin: 0 0 20px 0;
}

.contact-region-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-region-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-region-icon {
    flex-shrink: 0;
}

.contact-region-item span {
    font-size: 18px;
    color: #555;
}

/* 商务合作与人才招聘 */
.contact-cooperation {
    display: flex;
    gap: 80px;
}

.contact-coop-left,
.contact-coop-right {
    flex: 1;
}

.contact-coop-title {
    font-size: 30px;
    color: #1a1a1a;
    font-weight: bold;
    margin: 0 0 20px 0;
}

.contact-coop-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-coop-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-coop-icon {
    flex-shrink: 0;
}

.contact-coop-item span {
    font-size: 18px;
    color: #555;
}