* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
        }

        /* 导航栏样式 */
		/* 导航容器 */
		.nav-container {
		    position: fixed;
		    top: 0;
		    width: 100%;
		    background: rgba(255, 255, 255, 0.8);
		    backdrop-filter: blur(20px);
		    z-index: 1000;
		    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
			
		}
		
		/* 导航主体 */
		.nav-wrapper {
		    max-width: 1200px;
		    margin: 0 auto;
		    padding: 0 20px;
		}
		
		/* 主导航栏 */
		.main-nav {
		    display: flex;
		    justify-content: space-between;
		    align-items: center;
		    height: 60px;
		}
		
		.logo {
		    font-size: 24px;
		    font-weight: 600;
		    color: #000;
		    text-decoration: none;
		}
		
		/* 导航菜单 */
		.nav-menu {
		    display: flex;
		    list-style: none;
		    height: 100%;
		}
		
		.nav-item {
		    position: relative;
		    padding: 0 20px;
		    height: 100%;
		    display: flex;
		    align-items: center;
		}
		
		.nav-link {
		    text-decoration: none;
		    color: #666;
		    font-size: 14px;
		    transition: color 0.3s;
		    position: relative;
		}
		
		.nav-link:hover {
		    color: #000;
		}
		
		/* 横向下拉菜单 */
		.dropdown-horizontal {
		    position: absolute;
		    top: 100%;
		    left: 0;
		    width: 200vw;
		    margin-left: -100vw;
		    left: 50%;
		    background: rgba(255,255,255,0.92);
		    backdrop-filter: blur(30px);
		    display: none;
		    padding: 40px 0;
		    box-shadow: 0 20px 30px rgba(0,0,0,0.1);
		    border-top: 1px solid rgba(0,0,0,0.1);
		}
		
		.dropdown-content {
		    max-width: 1200px;
		    margin: 0 auto;
		    display: grid;
		    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
		    gap: 40px;
		    padding: 0 20px;
		}
		
		.menu-section h3 {
		    font-size: 12px;
		    color: #666;
		    margin-bottom: 15px;
		    font-weight: 500;
		    text-transform: uppercase;
		}
		
		.menu-section ul {
		    list-style: none;
		}
		
		.menu-section li {
		    margin-bottom: 12px;
		}
		
		.menu-section a {
		    color: #000;
		    text-decoration: none;
		    font-size: 16px;
		    transition: opacity 0.3s;
		}
		
		.menu-section a:hover {
		    opacity: 0.7;
		}
		
		/* 交互效果 */
		.nav-item:hover .dropdown-horizontal {
		    display: block;
		    animation: menuSlide 0.3s cubic-bezier(0.23, 1, 0.32, 1);
		}
		
		@keyframes menuSlide {
		    from {
		        opacity: 0;
		        transform: translateY(-10px);
		    }
		    to {
		        opacity: 1;
		        transform: translateY(0);
		    }
		}
		
		
		
		
        /* nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            z-index: 1000;
            padding: 0 10%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 60px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }

        .nav-items a {
            text-decoration: none;
            color: #1d1d1f;
            margin-left: 40px;
            font-size: 14px;
            transition: opacity 0.3s;
        } */

        /* 主内容区域 */
        section {
            min-height: 100vh;
            padding: 120px 10% 0;
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
        }

        section.active {
            opacity: 1;
            transform: translateY(0);
        }

        h1 {
            font-size: 80px;
            font-weight: 600;
            margin-bottom: 40px;
            color: #1d1d1f;
        }

        h2 {
            font-size: 48px;
            margin-bottom: 30px;
            color: #1d1d1f;
        }

        p {
            font-size: 24px;
            line-height: 1.4;
            color: #86868b;
            max-width: 800px;
            margin-bottom: 60px;
        }

        .image-container {
            width: 100%;
            height: auto; /* 高度自适应图片 */
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            background: #f5f5f7;
        }

        .image-container.small {
            width: 50%; /* 宽度减小一半 */
        }

        .image-container img {
            width: 100%;
            height: auto; /* 保持图片比例 */
            object-fit: contain; /* 确保完整展示图片 */
        }

        .image-row {
            display: flex;
            gap: 20px; /* 图片之间的间距 */
            align-items: flex-start; /* 确保图片顶部对齐 */
        }
		
		footer {
		    background: #1d1d1f;
		    color: #f5f5f7;
		    padding: 40px 20px;
		    text-align: center;       /* 文字水平居中 */
		    width: 100%;
		    margin-top: 200px;
		}
		
		/* footer p {
			margin-right: 70px;
		    margin-bottom: 20px;      
		    font-size: 16px;
		} */
		.footer-p {
			margin-right: 779px;
		}
		
		footer a {
		    color: #f5f5f7;          /* 链接颜色 */
		    text-decoration: none;   /* 去除下划线 */
		    margin: 0 15px;          /* 链接之间的水平间距 */
		    font-size: 14px;
		    transition: opacity 0.3s;
		}
		
		footer a:hover {
		    opacity: 0.7;            /* 悬停效果 */
		}

        /* 研究方向首屏：与「稀土新材料公共实验室」同构（背景图 + hero-glass） */
        body.hzbgs-page-yanjiufangxiang .hero {
            position: relative;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            text-align: center;
            padding: 0 20px;
            background-image: url('../img/tu1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        body.hzbgs-page-yanjiufangxiang .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: 0;
            background: rgba(255, 255, 255, 0);
            backdrop-filter: none;
            pointer-events: none;
        }

        body.hzbgs-page-yanjiufangxiang .hero-glass {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 22px;
            box-shadow: 0 4px 32px 0 rgba(0, 0, 0, 0.06);
            padding: 36px 56px 28px 56px;
            margin-bottom: 1.5rem;
            max-width: 900px;
            width: 100%;
        }

        body.hzbgs-page-yanjiufangxiang .hero .section-title,
        body.hzbgs-page-yanjiufangxiang .hero .hero-text {
            background: none !important;
            box-shadow: none;
            padding: 0;
            margin-bottom: 1.2rem;
            color: #222;
            text-shadow: none;
            filter: none;
            display: block;
        }

        body.hzbgs-page-yanjiufangxiang .hero .section-title {
            font-size: 4.5rem;
            font-weight: 900;
            letter-spacing: 2px;
            line-height: 1.08;
            margin-bottom: 1.5rem;
            background: rgba(245, 246, 250, 0.92);
        }

        body.hzbgs-page-yanjiufangxiang .hero .hero-text {
            font-size: 2rem;
            font-weight: 400;
            letter-spacing: 1px;
            background: rgba(245, 246, 250, 0.92);
            margin: 0 auto 2rem auto;
            max-width: 700px;
        }

        @media (max-width: 900px) {
            body.hzbgs-page-yanjiufangxiang .hero .section-title {
                font-size: 2.2rem;
                padding: 12px 16px;
            }
            body.hzbgs-page-yanjiufangxiang .hero .hero-text {
                font-size: 1.1rem;
                padding: 10px 14px;
            }
        }

        /* 研究方向各小节：左文右图，避免整屏留白与图片过高 */
        body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section {
            min-height: unset;
            max-width: min(1160px, 100%);
            margin-left: auto;
            margin-right: auto;
            padding: 72px clamp(20px, 6vw, 80px) 56px;
            display: grid;
            grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
            column-gap: clamp(28px, 4vw, 52px);
            row-gap: 0.75rem;
            align-items: start;
        }

        body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section > h2 {
            grid-column: 1;
            grid-row: 1;
            margin-bottom: 0.35rem;
            font-size: clamp(1.65rem, 2.2vw, 2.35rem);
            line-height: 1.2;
        }

        body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section > p {
            grid-column: 1;
            grid-row: 2;
            max-width: none;
            margin-bottom: 0;
            font-size: clamp(1rem, 1.05vw + 0.85rem, 1.2rem);
            line-height: 1.65;
            color: #6e6e73;
        }

        body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section > .image-row {
            grid-column: 2;
            grid-row: 1 / span 2;
            align-self: center;
            width: 100%;
        }

        body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section .image-container img {
            max-height: clamp(200px, 34vh, 400px);
            width: 100%;
            object-fit: contain;
            object-position: center;
        }

        @media (max-width: 900px) {
            body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section {
                display: flex;
                flex-direction: column;
                padding: 52px clamp(12px, 4vw, 24px) 40px;
            }

            body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section > p {
                margin-bottom: 1.25rem;
            }

            body.hzbgs-page-yanjiufangxiang .hzbgs-page-yanjiufangxiang-inner > section .image-container img {
                max-height: none;
            }
        }

         /* 移动端样式 */
        @media (min-width: 769px) {
            /* PC端时隐藏移动端导航 */
            .mobile-header,
            .mobile-menu {
                display: none !important;
            }
            
            /* PC端时显示主导航 */
            .nav-container {
                display: block;
            }
        }

        @media (max-width: 768px) {
            /* 移动端时隐藏PC导航 */
            .nav-container {
                display: none !important;
            }
            
            /* 移动端时显示移动导航 */
            .mobile-header {
                display: flex !important;
            }

            h1 {
        font-size: 2rem;
        margin-bottom: 18px;
    }
    h2 {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }
    p {
        font-size: 0.92rem;
        margin-bottom: 18px;
    }
    section {
        min-height: unset;
        padding: 70px 8px 0 8px;
        margin-bottom: 18px;
    }
    .image-row {
        gap: 8px;
        margin-bottom: 10px;
    }
    .image-container.small {
        width: 48%;
    }
    .image-container img {
        border-radius: 10px;
    }

            .equipment-image-container {
        gap: 0.5rem; /* 缩小图片间距 */
    }
    .equipment-image {
        height: 90px;   /* 移动端图片高度更小 */
        max-width: 120px; /* 限制最大宽度 */
    }
        }
        @media (max-width: 600px) {
            .nav-container {
                display: none; /* 隐藏桌面导航 */
            }

            .mobile-header {
                display: flex;
                justify-content: space-between;
                align-items: center;
                padding: 10px 20px;
                background: rgba(255, 255, 255, 0.9);
                border-bottom: 1px solid rgba(0, 0, 0, 0.1);
                position: relative;
                z-index: 1001;
            }

            .mobile-logo {
                font-size: 18px;
                font-weight: 600;
                color: #000;
                text-decoration: none;
            }
            .mobile-logo-en {
                font-size: 10px;
                color: #666;
                margin-top: 2px;
                letter-spacing: 0.5px;
                font-weight: 400;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                line-height: 1.2;
            }

            @media (max-width: 768px) {
            .main-nav, .nav-menu, .nav-login {
                display: none !important;
            }
            .mobile-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                height: 60px;
                padding: 0 16px;
                background: rgba(255,255,255,0.95);
                position: fixed;
                top: 0;
                left: 0;
                width: 100vw;
                z-index: 1200;
                border-bottom: 1px solid #eee;
            }
            .mobile-logo {
                font-size: 16px;
                font-weight: 600;
                color: #222;
                text-decoration: none;
                flex: 1;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .mobile-logo-en {
                font-size: 9px;
                color: #666;
                margin-top: 2px;
                letter-spacing: 0.5px;
                font-weight: 400;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                line-height: 1.2;
            }
            .mobile-menu-btn {
                background: none;
                border: none;
                font-size: 28px;
                color: #222;
                cursor: pointer;
                padding: 8px;
            }
            .mobile-menu {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100vw;
                height: 100vh;
                background: #222;
                color: #fff;
                z-index: 2000;
                flex-direction: column;
                padding-top: 60px;
                transition: transform 0.3s cubic-bezier(.4,0,.2,1);
                overflow-y: auto; /* 允许菜单内容滚动 */
                -webkit-overflow-scrolling: touch; /* iOS 惯性滚动 */
            }
            .mobile-menu.active {
                display: flex;
            }
            body.mobile-menu-open {
                overflow: hidden;
                position: fixed;
                width: 100vw;
            }
            .mobile-menu-close {
                position: absolute;
                top: 16px;
                right: 20px;
                background: none;
                border: none;
                color: #fff;
                font-size: 28px;
                cursor: pointer;
                z-index: 2100;
            }
            .mobile-menu-list {
                list-style: none;
                padding: 0;
                margin: 0;
                width: 100%;
            }
            .mobile-menu-list li {
                border-bottom: 1px solid rgba(255,255,255,0.08);
            }
            .mobile-menu-link {
                display: block;
                color: #fff;
                text-decoration: none;
                font-size: 18px;
                padding: 18px 28px;
                width: 100%;
                transition: background 0.2s;
            }
            .mobile-menu-link:hover {
                background: rgba(255,255,255,0.08);
            }
            .mobile-menu-dropdown {
                background: #222;
                padding-left: 32px;
            }
            .mobile-menu-dropdown a {
                color: #fff;
                font-size: 16px;
                display: block;
                padding: 12px 0;
                text-decoration: none;
            }
            .mobile-menu-dropdown a:hover {
                text-decoration: underline;
            }
            body.mobile-menu-open {
                overflow: hidden;
            }
            .carousel-container {
                margin-top: 60px !important;
            }
            .carousel-caption {
                position: absolute;
                left: 0;
                right: 0;
                bottom: 0;
                width: 100%;
                max-width: 100%;
                padding: 0.7rem 0.7rem 0.9rem 0.7rem;
                background: rgba(0,0,0,0.32);
                text-align: left;
                color: #fff;
                animation: fadeIn 1.5s ease-in-out;
            }
            .carousel-caption h2 {
                font-size: 1.15rem;
                margin-bottom: 0.5rem;
                font-weight: 700;
                color: #fff;
                text-shadow: 0 2px 6px rgba(0,0,0,0.25);
                line-height: 1.3;
            }
            .carousel-caption p {
                font-size: 0.92rem;
                margin-bottom: 0.7rem;
                line-height: 1.5;
                color: #fff;
                text-shadow: 0 1px 3px rgba(0,0,0,0.18);
            }
            .read-more {
                padding: 7px 14px;
                font-size: 0.92rem;
            }
        }
        }

/* 移动端：首屏与稀土新材料公共实验室页一致（缩短高度、关强磨砂避免发糊） */
@media (max-width: 1024px) {
    body.hzbgs-page-yanjiufangxiang .hero {
        height: min(48vh, 380px);
        min-height: 240px;
    }

    body.hzbgs-page-yanjiufangxiang .hero-glass {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: rgba(255, 255, 255, 0.96);
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    }

    .nav-container {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: rgba(255, 255, 255, 0.97) !important;
    }

    .dropdown-horizontal {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: rgba(255, 255, 255, 0.98) !important;
    }
}

/*
 * apple-motion.css 的 reveal blur；本页与实验室页同样跳过 JS 注入，此处兜底
 */
body.hzbgs-page-yanjiufangxiang [data-motion="reveal"],
body.hzbgs-page-yanjiufangxiang [data-motion="hero"],
body.hzbgs-page-yanjiufangxiang [data-motion="text"] {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
}

html.motion-ready body.hzbgs-page-yanjiufangxiang [data-motion="reveal"].is-in,
html.motion-ready body.hzbgs-page-yanjiufangxiang [data-motion="hero"].is-in,
html.motion-ready body.hzbgs-page-yanjiufangxiang [data-motion="text"].is-in {
    filter: none !important;
}

body.hzbgs-page-yanjiufangxiang img[data-motion="media"] {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
}