/* 字体引用 */
@font-face {
    font-family: 'element-icons';
    src: url('fonts/element-icons.535877f.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}

/* 图标字体类 */
[class^="el-icon-"], [class*=" el-icon-"] {
    font-family: 'element-icons' !important;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
}

.el-icon-arrow-down:before { content: "\e790"; }
.el-icon-arrow-up:before { content: "\e78f"; }
.el-icon-plus:before { content: "\e6d9"; }
.el-icon-minus:before { content: "\e6d8"; }
.el-icon-close:before { content: "\e6db"; }

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, 'Microsoft Yahei', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
    border: 0;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 头部导航 ==================== */
.header-wrap {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo-img {
    height: 32px;
    width: auto;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.lang-btn {
    font-size: 14px;
    color: #da3915;
    cursor: pointer;
}

/* 汉堡菜单按钮 */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 22px;
    height: 16px;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: #333;
    transition: all 0.3s;
}

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

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

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

/* X 按钮样式 */
.mobile-menu-btn.active {
    position: relative;
}

.mobile-menu-btn.active span {
    background: #da3915;
}

/* ==================== 移动端导航 ==================== */
.mobile-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    z-index: 999;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-list {
    padding: 0;
}

.mobile-nav-list > .nav-item {
    position: relative;
    border-bottom: 1px solid #eee;
}

.mobile-nav-list > .nav-item::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 15px;
    width: 4px;
    height: 20px;
    background: #ccc;
}

.mobile-nav-list > .nav-item.active::before {
    background: #da3915;
}

.mobile-nav-list > .nav-item > a {
    display: block;
    padding: 15px 20px 15px 35px;
    font-size: 16px;
    color: #333;
}

.mobile-nav-list > .nav-item.active > a {
    color: #da3915;
}

/* 子菜单切换图标 */
.toggle-icon {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 20px;
    color: #999;
    cursor: pointer;
    width: 24px;
    height: 24px;
    text-align: center;
    line-height: 24px;
}

/* 子菜单 */
.sub-menu {
    display: none;
    padding: 0 0 10px 35px;
    background: #fff;
}

.sub-menu.show {
    display: block;
}

.sub-menu li {
    position: relative;
}

.sub-menu li.active a {
    color: #da3915;
}

.sub-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: #666;
}

.sub-menu .toggle-icon {
    top: 10px;
    right: 20px;
}

/* ==================== Banner区域 ==================== */
.banner {
    margin-top: 60px;
}

.banner-bg {
    position: relative;
    overflow: hidden;
}

.banner-bg img {
    width: 100%;
    height: auto;
    display: block;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.banner-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 4px;
}

.banner-subtitle {
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 2px;
}

/* ==================== 主要内容区 ==================== */
.main-content {
    background: #fff;
}

/* ==================== 公司简介 ==================== */
.intro-section {
    padding: 30px 0;
    background: #fff;
}

.intro-text {
    font-size: 14px;
    line-height: 2;
    color: #666;
    text-align: justify;
}

/* ==================== 业务板块 ==================== */
.business-section {
    padding: 40px 0;
    border-bottom: 1px solid #eee;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px 20px;
}

.business-item {
    text-align: center;
    padding: 20px 15px;
}

.business-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    color: #254099;
}

.business-icon svg {
    width: 100%;
    height: 100%;
}

.business-title {
    font-size: 16px;
    font-weight: 700;
    color: #254099;
    margin-bottom: 10px;
}

.business-desc {
    font-size: 13px;
    line-height: 1.8;
    color: #666;
}

/* ==================== 奖项与荣誉 ==================== */
.awards-section {
    padding: 40px 0;
}

.section-title {
    font-size: 22px;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    padding-left: 0;
}

.awards-list {
    margin-bottom: 40px;
}

.award-group {
    display: flex;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.award-group:last-child {
    border-bottom: none;
}

.award-logo {
    flex: 0 0 80px;
    display: flex;
    align-items: flex-start;
    padding-top: 5px;
}

.award-logo img {
    max-width: 70px;
    height: auto;
}

.logo-text {
    font-size: 11px;
    color: #999;
    line-height: 1.3;
    font-style: italic;
}

.srp-logo {
    font-size: 14px;
    font-weight: bold;
    font-style: normal;
    color: #666;
}

.asset-logo {
    font-size: 12px;
}

.award-content {
    flex: 1;
}

.award-content h4 {
    font-size: 14px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.award-content ul {
    padding-left: 0;
}

.award-content li {
    position: relative;
    padding-left: 15px;
    font-size: 13px;
    color: #666;
    line-height: 2;
}

.award-content li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: #999;
}

.award-content li a {
    color: #254099;
}

.award-content li a:hover {
    text-decoration: underline;
}

/* CTA 按钮 */
.cta-wrap {
    text-align: center;
    padding: 20px 0;
}

.cta-btn {
    display: inline-block;
    padding: 12px 40px;
    font-size: 14px;
    color: #333;
    border: 1px solid #333;
    border-radius: 25px;
    transition: all 0.3s;
}

.cta-btn:hover {
    background: #333;
    color: #fff;
}

/* ==================== 页脚 ==================== */
.footer {
    background: #2a2a2a;
    color: #fff;
}

.footer-top {
    padding: 20px 0;
    border-bottom: 1px solid #444;
}

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

.footer-logo img {
    height: 32px;
}

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

.social-icon {
    width: 32px;
    height: 32px;
    background: #444;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
}

.social-icon svg {
    width: 18px;
    height: 18px;
}

/* 折叠区域 */
.footer-collapse {
    border-bottom: 1px solid #444;
}

.collapse-item {
    border-bottom: 1px solid #444;
}

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

.collapse-header {
    display: flex;
    align-items: center;
    padding: 15px 0;
    cursor: pointer;
}

.collapse-icon {
    margin-right: 10px;
    font-size: 12px;
    color: #999;
}

.collapse-title {
    font-size: 14px;
    color: #fff;
}

/* 联系信息 */
.footer-info {
    padding: 20px 0;
    border-bottom: 1px solid #444;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 12px;
    color: #999;
}

.info-icon {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    color: #999;
}

.info-item.hotline {
    gap: 10px;
}

.info-item.hotline strong {
    font-size: 24px;
    color: #fff;
    font-weight: 400;
}

/* 页脚底部 */
.footer-bottom {
    padding: 20px 0;
    font-size: 11px;
    color: #666;
    line-height: 1.8;
}

.footer-bottom p {
    margin-bottom: 5px;
}

.footer-links a {
    color: #666;
    margin-right: 15px;
}

.footer-links a:hover {
    color: #999;
}

.beian {
    display: flex;
    align-items: center;
    gap: 5px;
}

.beian img {
    width: 16px;
    height: 16px;
}

/* ==================== 响应式设计 ==================== */

/* 较大屏幕 */
@media (min-width: 768px) {
    .header-inner {
        height: 80px;
    }

    .logo-img {
        height: 40px;
    }

    .mobile-nav {
        top: 80px;
    }

    .banner {
        margin-top: 80px;
    }

    .banner-title {
        font-size: 36px;
    }

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

    .intro-section {
        padding: 40px 0;
    }

    .intro-text {
        font-size: 16px;
    }

    .business-section {
        padding: 60px 0;
    }

    .business-grid {
        gap: 40px 30px;
    }

    .business-icon {
        width: 60px;
        height: 60px;
    }

    .business-title {
        font-size: 18px;
    }

    .business-desc {
        font-size: 14px;
    }

    .awards-section {
        padding: 60px 0;
    }

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

    .award-logo {
        flex: 0 0 120px;
    }

    .award-content h4 {
        font-size: 16px;
    }

    .award-content li {
        font-size: 14px;
    }
}

/* PC端 */
@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }

    .mobile-nav {
        position: static;
        transform: none;
        background: transparent;
        overflow: visible;
    }

    .mobile-nav-list {
        display: flex;
        align-items: center;
    }

    .mobile-nav-list > .nav-item {
        border-bottom: none;
        position: relative;
    }

    .mobile-nav-list > .nav-item::before {
        display: none;
    }

    .mobile-nav-list > .nav-item > a {
        padding: 20px 15px;
        font-size: 14px;
    }

    .toggle-icon {
        display: none;
    }

    .sub-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 150px;
        background: #fff;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        padding: 10px 0;
    }

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

    .sub-menu a {
        padding: 8px 20px;
    }

    .business-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .header-inner {
        justify-content: flex-start;
        gap: 50px;
    }

    .header-right {
        margin-left: auto;
    }

    .lang-btn {
        display: none;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .business-item {
        padding: 15px 10px;
    }

    .business-icon {
        width: 45px;
        height: 45px;
    }

    .business-title {
        font-size: 14px;
    }

    .business-desc {
        font-size: 12px;
    }

    .award-logo {
        flex: 0 0 60px;
    }

    .logo-text {
        font-size: 10px;
    }

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

    .award-content li {
        font-size: 12px;
    }

    .cta-btn {
        padding: 10px 30px;
        font-size: 13px;
    }

    .footer-social {
        gap: 8px;
    }

    .social-icon {
        width: 28px;
        height: 28px;
    }

    .info-item.hotline strong {
        font-size: 20px;
    }
}