:root {
            --blue-main: #1A2E52;
            --gold-main: #B89049;
            --light-gold: #d4b888;
            --dark-bg: #121620;
            --white: #ffffff;
            --gray-text: #666666;
            --light-gray: #f5f6f8;
            --transition-base: all 0.4s ease;
        }
        /* 板块分割通用样式 */
        .section-divider {
            position: relative;
        }
        .section-divider::before {
            content: '';
            width: 80px;
            height: 3px;
            background-color: var(--gold-main);
            position: absolute;
            left: 50%;
            top: 0;
            transform: translateX(-50%);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Serif SC", serif;
            color: #333;
            background: var(--white);
            overflow-x: hidden;
        }
        .en-font {
            font-family: "Cormorant Garamond", serif;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 90%;
            max-width: 1320px;
            margin: 0 auto;
        }
        .section {
            padding: 100px 0;
        }
        #business.section {
            padding-bottom: 160px;
        }
        .bg-light {
            background: var(--light-gray);
        }
        .section-title {
            font-size: 36px;
            color: var(--blue-main);
            margin-bottom: 12px;
            font-weight: 700;
        }
        .section-sub {
            font-size: 18px;
            color: var(--gray-text);
            margin-bottom: 60px;
        }
        .btn {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 2px;
            font-size: 16px;
            transition: var(--transition-base);
            cursor: pointer;
            border: none;
        }
        .btn-blue {
            background: var(--blue-main);
            color: var(--white);
        }
        .btn-blue:hover {
            background: #273e6b;
            transform: translateY(-2px);
        }
        .btn-gold {
            border: 1px solid var(--gold-main);
            color: var(--gold-main);
            margin-left: 20px;
            background: transparent;
        }
        .btn-gold:hover {
            background: var(--gold-main);
            color: var(--white);
            transform: translateY(-2px);
        }

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            transition: var(--transition-base);
        }
        header.nav-dark {
            background: rgba(255,255,255,0.98);
            box-shadow: 0 2px 12px rgba(0,0,0,0.1);
        }

                /* logo两张图片重叠定位 */
        .logo {
            position: relative;
            width: 170px;
            height: 53px;
        }
        .logo-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: contain;
            transition: opacity 0.4s ease; /* 和导航栏过渡速度一致 */
        }

        /* 默认：显示浅色logo，隐藏深色logo */
        .logo-dark {
            opacity: 0;
            visibility: hidden;
        }
        .logo-light {
            opacity: 1;
            visibility: visible;
        }

        /* 导航栏滚动变暗后：切换成深色logo */
        header.nav-dark .logo-light {
            opacity: 0;
            visibility: hidden;
        }
        header.nav-dark .logo-dark {
            opacity: 1;
            visibility: visible;
        }

        .nav-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .logo-graph {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--blue-main) 40%, var(--gold-main));
            border-radius: 4px;
            position: relative;
        }
        .logo-text h2 {
            font-size: 22px;
            color: #ffffff;
            font-weight: 600;
            transition: var(--transition-base);
        }
        header.nav-dark .logo-text h2 {
            color: #1A2E52;
        }
        .logo-text p {
            font-size: 14px;
            color: var(--light-gold);
        }
        .nav-list {
            display: flex;
            gap: 40px;
        }
        .nav-list li a {
            font-size: 16px;
            color: rgba(255,255,255,0.85);
            position: relative;
            transition: var(--transition-base);
        }
        header.nav-dark .nav-list li a {
            color: #333;
        }
        .nav-list li a::after {
            content: "";
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold-main);
            transition: var(--transition-base);
        }
        .nav-list li a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            width: 32px;
            height: 32px;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            cursor: pointer;
        }
        .hamburger span {
            width: 100%;
            height: 2px;
            background: var(--white);
            transition: var(--transition-base);
        }
        header.nav-dark .hamburger span {
            background: var(--blue-main);
        }
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -280px;
            width: 280px;
            height: 100vh;
            background: var(--blue-main);
            padding: 80px 30px;
            transition: right 0.4s ease;
            z-index: 1000;
        }
        .mobile-menu.active {
            right: 0;
        }
        .mobile-menu li {
            margin: 24px 0;
        }
        .mobile-menu a {
            color: #fff;
            font-size: 18px;
        }
        .menu-mask {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: 0.4s;
        }
        .menu-mask.active {
            opacity: 1;
            visibility: visible;
        }

        /* Banner */
        .banner {
            position: relative;
            overflow: hidden;
            height: 100vh;
        }
        .banner-video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            object-fit: cover;
            z-index: 1;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            height:100vh;
            display:flex;
            flex-direction:column;
            justify-content:center;
        }
        .banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1;
        }
        .banner::before {
            content: "";
            position: absolute;
            right: 0;
            top: 0;
            width: 65%;
            height: 100%;
            background-image: url("data:image/svg+xml,%3Csvg width='900' height='1400' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M220,120 C300,180 340,260 280,340' stroke='%23B89049' stroke-width='1' fill='none' opacity='0.12'/%3E%3Cpath d='M120,420 C200,480 240,560 180,640' stroke='%23B89049' stroke-width='1' fill='none' opacity='0.08'/%3E%3Cpath d='M180,700 C260,760 300,840 240,920' stroke='%23B89049' stroke-width='1' fill='none' opacity='0.1'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right center;
        }
        .banner-content {
            color: var(--white);
            max-width: 680px;
            position: relative;
            z-index: 2;
        }
        .banner-content h1 {
            font-size: 58px;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
        }
        .banner-content h1 span {
            color: var(--gold-main);
        }
        .banner-content .en-slogan {
            font-size: 24px;
            color: var(--light-gold);
            margin-bottom: 24px;
        }
        .banner-content p {
            font-size: 18px;
            line-height: 1.8;
            opacity: 0.88;
            margin-bottom: 40px;
        }

        /* 固定侧边栏 */

        .float-sidebar {

            position: fixed;

            right: 30px;

            top: 50%;

            transform: translateY(-50%);
            
            width: 70px;

            background: #fff;

            box-shadow: 0 5px 20px rgba(0,0,0,.15);

            border-radius: 10px;

            z-index: 9999;
        
            overflow: visible;
        }



        .float-item {

            height:80px;

            display:flex;

            flex-direction:column;

            align-items:center;

            justify-content:center;

            cursor:pointer;

            border-bottom:1px solid #eee;

            transition:.3s;

        }



        .float-item:last-child{

            border-bottom:none;

        }



        .float-item img{

            width:25px;

            height:25px;

            object-fit:contain;

            margin-bottom:5px;

        }



        .float-item span{

            font-size:12px;

            color:#333;

        }



        .float-item:hover{

            background:#1A2E52;

        }



        .float-item:hover span{

            color:#fff;

        }



        .top-icon{

            font-size:22px!important;

            color:#B89049!important;

        }

        /* 微信二维码弹窗 */

        .wechat-item {
            position:relative;
        }



        .wechat-code {

            position: absolute;

            right: 80px;

            top: 50%;

            width: clamp(150px,18vw,220px);

            max-width:calc(100vw - 110px);

            padding: clamp(10px,2vw,20px);

            background: #ffffff;

            border-radius: 8px;

            box-shadow: 0 5px 20px rgba(0,0,0,.2);

            text-align: center;

            visibility: hidden;

            transform: translateY(-50%) scale(0);

            transform-origin: right center;

            transition: transform .3s ease, visibility .3s ease;
        }



        .wechat-code img {


            width:100%;

            max-width: 160px;

            height:auto;

            object-fit:contain;

        }



        .wechat-code p {

            margin-top:10px 0 0;

            font-size: clamp(12px,1.2vw,14px);

            color:#111111;


        }



        /* 鼠标经过显示 */

        .wechat-item:hover .wechat-code {

            visibility: visible;
            
            transform: translateY(-50%) scale(1);
        }
        

        /* Tab通用 */
        .tab-wrap {
            margin-bottom: 40px;
        }
        .tab-btn-group {
            display: flex;
            gap: 10px;
            border-bottom: 1px solid #ddd;
            margin-bottom: 30px;
        }
        .tab-btn {
            padding: 12px 30px;
            font-size: 17px;
            background: transparent;
            border: none;
            cursor: pointer;
            color: var(--gray-text);
            position: relative;
            transition: var(--transition-base);
        }
        .tab-btn.active {
            color: var(--blue-main);
            font-weight: 600;
        }
        .tab-btn.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 100%;
            height: 3px;
            background: var(--gold-main);
        }
        .tab-panel {
            display: none;
            opacity: 0;
            transform: translateY(15px);
            transition: opacity 0.4s ease, transform 0.4s ease;
        }
        .tab-panel.show {
            display: block;
            opacity: 1;
            transform: translateY(0);
        }

        /* 关于我们 */
        .brand-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 99px;
            align-items: center;
        }
        .brand-left h3 {
            font-size: 35px;
            color: var(--blue-main);
            margin-bottom: 20px;
        }
        .brand-left p {
            line-height: 1.9;
            font-size: 16px;
            color: #444;
            margin-bottom: 16px;
           
        }
        
        .brand-logo-box {
            width: 110%;
            height: 140%;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }
        
        .brand-logo-box img {
            width: 100%;
            max-width: 850px;
            height: auto;
            object-fit: contain;
            transform: translate(-60px);
        }


        /* 核心业务 */
        .business-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .business-card {
            background: var(--white);
            padding: 40px 30px;
            border-top: 4px solid var(--gold-main);
            box-shadow: 0 6px 20px rgba(26, 46, 82, 0.08);
            transition: var(--transition-base);
        }
        .business-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 30px rgba(26, 46, 82, 0.12);
        }
        .business-card h4 {
            font-size: 22px;
            color: var(--blue-main);
            margin-bottom: 16px;
        }
        .business-card p {
            line-height: 1.8;
            color: var(--gray-text);
        }

        /* ========== 投资理念板块样式（删除中间引言框，布局对齐其他板块） ========== */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 2rem;
}

.philosophy-card {
    background: #ffffff;
    padding: 32px 24px;
    border-radius: 8px;
    border: 1px solid rgba(42, 59, 105, 0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    cursor: pointer;
    height: 100%;
}
/* hover放大，和核心业务卡片动效保持一致 */
.philosophy-card:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 28px rgba(42, 59, 105, 0.12);
}

/* 卡片内部：金色大字+标题横向并排 */
.card-title-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 12px;
}
.char-gold {
    font-size: 36px;
    font-weight: 700;
    color: #B8945A;
    line-height: 1;
}
.card-title-text {
    font-size: 20px;
    font-weight: 600;
    color: #2A3B69;
}
.card-divider {
    height: 2px;
    background-color: #2A3B69;
    margin-bottom: 16px;
}
.card-desc {
    color: #444858;
    line-height: 1.7;
    font-size: 15px;
    margin: 0;
}

        /* 投资资讯 */
        .news-wrap {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }
        .news-card {
            display: flex;
            gap: 24px;
            background: var(--white);
            padding: 20px;
            box-shadow: 0 4px 14px rgba(0,0,0,0.06);
            transition: var(--transition-base);
        }
        .news-card:hover {
            transform: translateX(6px);
            box-shadow: 0 6px 18px rgba(0,0,0,0.1);
        }
        .news-img {
            width: 160px;
            height: 120px;
            flex-shrink: 0;
            overflow: hidden;
            background: var(--blue-main);
        }
        
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: 0.4s ease;
        }
        
        .news-card:hover .news-img img {
            transform: scale(1.08);
        }

        .news-text h4 {
            font-size: 20px;
            color: #222;
            margin-bottom: 10px;
        }
        .news-text .date {
            color: var(--gold-main);
            font-size: 14px;
            margin-bottom: 8px;
        }
        .news-text p {
            color: var(--gray-text);
            font-size: 15px;
            line-height: 1.6;
        }

        .news-card {
            text-decoration: none;
            color: inherit;
            cursor: pointer;
        }

        .news-text {
            position: relative;
        }
        
        
        .read-more {
            margin-top: auto;
            display: block;
            text-align:right;
            color: var(--gold-main);
            font-size:14px;
            padding-right:15px;
            transition:0.3s;
        }
        
        
        .news-card:hover .read-more {
            transform: translateX(8px);
        }
        
        
        .news-card:hover h4 {
            color: var(--gold-main);
        }

        .news-text h4 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        
        .news-text p {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 联系我们 */
        .contact-section {
            text-align: center;
        }
        
        .contact-header {
            margin-bottom: 55px;
        }
        
        .contact-en {
            display: block;
        
            color: var(--gold-main);
        
            font-size: 15px;
        
            letter-spacing: 4px;
        
            margin-bottom: 12px;
        }
        
        .contact-header h2 {
            font-size: 36px;
        
            color: var(--blue-main);
        
            margin-bottom: 12px;
        }
        
        .contact-header p {
            color: var(--gray-text);
        
            font-size: 16px;
        }
        
        .contact-grid {
        
            display: grid;
        
            grid-template-columns:
                repeat(4, 1fr);
        
            margin-top: 55px;
        
            border-top: 1px solid #ddd;
        
            border-bottom: 1px solid #ddd;
        }
        
        
        .contact-info-item {
        
            padding: 35px 25px;
        
            border-right: 1px solid #ddd;
        }
        
        
        .contact-info-item:last-child {
            border-right: none;
        }
        
        
        .contact-number {
            display: flex;
            align-items: center;
            justify-content: center;
        
            width: 36px;
            height: 36px;

            margin:0 auto 12px;
        
            font-size: 16px;
            color: var(--gold-main);
        
            border: 0px solid var(--gold-main);
            border-radius: 50%;
        
            transition: all 0.35s ease;
        }
        
        
        .contact-info-item h4 {
        
            color: var(--blue-main);
        
            font-size: 18px;
        
            margin-bottom: 10px;
        }
        
        
        .contact-info-item p {
        
            color: #666;
        
            font-size: 14px;
        
            line-height: 1.8;
        }

        .contact-info-item {
            position: relative;
            height:100%;
            padding: 35px 25px;
            border-right: 1px solid #ddd;
            transition: all 0.35s ease,box-shadow .35s ease;
            cursor: pointer;
            background: #fff;
        }
        
        .contact-info-item:first-child{
            border-left: 1px solid #ddd;
          }
        
        
        /* 底部金色线条 */
        .contact-info-item::after {
            content: "";
            position: absolute;
            left: 25px;
            right: 25px;
            bottom: 0;
        
            height: 2px;
        
            background: var(--gold-main);
        
            transform: scaleX(0);
            transform-origin: center;
        
            transition: transform 0.35s ease;
        }
        
        
        /* 鼠标移入 */
        .contact-info-item:hover {
            transform: translateY(-6px);
        
            box-shadow:
                0 10px 30px rgba(26, 46, 82, 0.10);
        
            z-index: 2;
        }
        
        .contact-info-item:hover::after {
            transform: scaleX(1);
        }
        
        
        .contact-info-item .contact-number {
            transition: all 0.35s ease;
        }
    
        .contact-info-item:hover .contact-number {
            color: #fff;
        
            background: var(--gold-main);
        
            transform: scale(1.08);
        }
        
        .contact-info-item h4 {
            transition: color 0.35s ease;
        }
        
        
        .contact-info-item:hover h4 {
            color: var(--gold-main);
        }

        .contact-info-wrap {
            position: relative;
            height: 100%;
        }

        .contact-popup {

            position: absolute;
        
            left: 50%;
            top: -8px;
        
            width: 320px;
            min-height: 260px;
        
            padding: 40px 35px;
        
            background: #fff;
        
            border: 1px solid rgba(184,144,73,.45);
        
            box-shadow:
                0 12px 36px rgba(20,35,60,.15);
        
            z-index: 20;
        
            opacity: 0;
        
            visibility: hidden;
                        
                    /* 初始状态：居中+上移+缩小到50% */
            transform: translate(-50%, 50%) scale(0.5);
            /* 缩放原点在弹窗底部，看起来像从卡片里“长出来” */
            transform-origin: center top;
            /* 动画放慢一点，放大更顺滑 */
            transition: all .4s cubic-bezier(.34,1.56,.64,1);
        }

        .contact-popup-number {

            display: flex;
        
            align-items: center;
            justify-content: center;
        
            width: 45px;
            height: 45px;
        
            margin: 0 auto 20px;
        
            border: 1px solid var(--gold-main);
        
            border-radius: 50%;
        
            color: var(--gold-main);
        
            font-size: 18px;
        }
        
        
        .contact-popup h3 {
        
            text-align: center;
        
            color: var(--blue-main);
        
            font-size: 24px;
        
            margin-bottom: 18px;
        }
        
        
        .contact-popup p {
        
            text-align: center;
        
            color: #555;
        
            font-size: 16px;
        
            line-height: 1.9;
        }
        
        
        .popup-tip {
        
            display: block;
        
            margin-top: 25px;
        
            text-align: center;
        
            color: var(--gold-main);
        
            font-size: 12px;
        
            letter-spacing: 2px;
        
            opacity: .8;
        }

        /* 鼠标移入卡片弹出弹窗 */
        .contact-info-wrap:hover .contact-popup {

            opacity: 1;

            visibility: visible;

            transform: translate(-50%, 50%) scale(1);

        }

                /* 第4个卡片：二维码图片弹窗样式 */
        .contact-popup--image {

            width: clamp(160px, 20vw, 200px);

            min-height: auto;

            padding: 18px;

        }
        .contact-popup--image img {

            width: 100%;

            height: auto;

            display: block;

            border-radius: 4px;

            margin-bottom: 8px;

        }
        .contact-popup--image .popup-tip {

            margin: 0;

            text-align: center;

            color: var(--gold-main);

            font-size: 13px;

            letter-spacing: 1px;

            opacity: 0.85;

        }



        

        /* 合规弹窗 */
        .modal-mask {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.7);
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-base);
        }
        .modal-mask.show {
            opacity: 1;
            visibility: visible;
        }
        .modal-box {
            width: 90%;
            max-width: 600px;
            background: #fff;
            padding: 40px;
            border-radius: 4px;
            transform: translateY(20px);
            transition: var(--transition-base);
text-align:center;
        }
        .modal-mask.show .modal-box {
            transform: translateY(0);
        }
        .modal-box h3 {
            color: var(--blue-main);
            margin-bottom: 20px;
            font-size: 24px;
        }
        .modal-box p {
            line-height: 1.8;
            color: #444;
            margin-bottom: 30px;
        }

        /* 页脚 */
        footer {
            background: var(--dark-bg);
            padding: 60px 0 30px;
            color: rgba(255,255,255,0.7);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 40px;
        }

        .logo-row {
             display: flex;
             align-items: center; /* 垂直居中对齐logo和文字 */
             gap: 12px; /* logo和标题之间的间距，可自行调整 */
        }
        .logo-row h3 {
            margin: 0;
        }
        
        .footer-logo h3 {
            color: var(--white);
            font-size: 22px;
            margin-bottom: 10px;
        }
        .footer-logo p {
            color: var(--light-gold);
            margin-bottom: 16px;
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 18px;
            margin-bottom: 20px;
        }
        .footer-col li {
            margin-bottom: 12px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 14px;
        }

        /* 移动端适配 */
        @media(max-width:992px){
            .nav-list {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .brand-row, .contact-wrap, .news-wrap {
                grid-template-columns: 1fr;
            }
            .business-wrap {
                grid-template-columns: repeat(2,1fr);
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .banner-content h1 {
                font-size: 42px;
            }
            .tab-btn-group {
                flex-wrap: wrap;
            }
            #business.section {
                padding-bottom: 120px;
            }
            .contact-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        
            .contact-info-item:nth-child(2) {
                border-right: none;
            }
        
            .contact-info-item:nth-child(1),
            .contact-info-item:nth-child(2) {
                border-bottom: 1px solid #ddd;
            }
        }
        @media(max-width:576px){
            .contact-brand-title {
                font-size: 28px;
            }
        
            .contact-brand-en {
                font-size: 18px;
            }
        
            .contact-grid {
                grid-template-columns: 1fr;
            }
        
            .contact-info-item {
                border-right: none;
                border-bottom: 1px solid #ddd;
            }
        
            .contact-info-item:last-child {
                border-bottom: none;
            }
    
        }