/* ================= 基础重置与变量 ================= */
        :root {
            --primary-red: #c61d23;
            --bg-gray: #f5f5f5;
            --text-main: #333333;
            --text-light: #666666;
            --content-width: 1420px;
            --layout-max: 1950px;
            --layout-ratio: 83vw;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }

        body {
            background-color: var(--bg-gray);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        .wrapper {
            max-width: var(--content-width);
            margin: -1px auto;
            padding: 0 15px;
            box-sizing: border-box;
        }

        /* ================= 顶部导航 ================= */
        .header {
            background: transparent;
            color: var(--text-main);
            /* border-bottom: 1px solid rgba(0,0,0,0.04); */
            position: relative;
            z-index: 10;
            overflow: visible;
        }

        .header .wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: min(100%, 1476px);
            max-width: calc(100% - 30px);
        }

        .header-top {
            height: 111px;
            padding-bottom: 12px;
            position: relative;
        }

        /* Full-bleed background limited to header-top area via pseudo-element */
        .header-top::before {
            content: "";
            position: absolute;
            left: 50%;
            top: 0;
            transform: translateX(-50%);
            width: 100vw;
            height: 100%;
            background-image: url(bgtop.png);
            background-repeat: no-repeat;
            background-position: center top;
            background-size: cover;
            z-index: -1;
        }

        .header-bottom {
            /* padding-top: 8px; */
            background: transparent;
            position: relative;
            z-index: 10;
            overflow: visible;
        }

        .logo-box {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .logo-box img {
            height: 77px;
            max-width: 100%;
            transition: height 0.2s ease;
        }

        .top-tools {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 15px;
            color: #fff;
        }

        .top-links {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }

        .top-links a {
            color: #fff;
        }

        .search-box {
            background: rgba(255, 255, 255, 0);
            border-radius: 22px;
            padding: 3px 10px;
            border: 1px solid #e5e5e5;
            display: flex;
            align-items: center;
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff !important;
            font-size: 14px;
            width: 130px;
        }

        .search-box input::placeholder {
            color: #fff;
        }

        .nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: clamp(2px, 0.45vw, 8px);
            font-size: 18px;
            width: 100%;
            justify-content: flex-start;
            align-items: center;
            font-weight: 600;
            min-width: 0;
        }

        .nav-item {
            position: relative;
            flex: 1 1 0;
            min-width: 0;
            text-align: center;
        }

        .nav-item>a {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            width: 100%;
            padding: 10px 16px;
            color: var(--text-main);
            /* border-radius: 4px; */
            transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
        }

        .nav-item.has-submenu:has(.submenu)>a::before {
            content: "▼";
            font-weight: bold;
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%) rotate(0deg);
            font-size: 10px;
            color: var(--text-main);
            transition: transform 0.2s ease, color 0.2s ease;
        }

        .nav-item>a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -8px;
            width: 0;
            height: 2px;
            background: var(--primary-red);
            transform: translateX(-50%);
        }

        .nav-item:hover>a,
        .nav-item.active>a {
            background: #d33630;
            color: #fff;
            font-weight: 600;
        }


        .nav-item.has-submenu:hover>a::before {
            transform: translateY(-50%) rotate(180deg);
            color: #fff;
        }

        .nav-item:hover .submenu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
            pointer-events: auto;
        }

        .submenu {
            position: absolute;
            /* top: calc(100% + 4px); */
            left: 50%;
            transform: translateX(-50%) translateY(-10px);
            min-width: 139px;
            max-width: 139px;
            padding: 4px 0;
            background: var(--primary-red);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 1px;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
            color: #fff;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
            z-index: 20;
        }

        .submenu::before {
            display: none;
        }

        .submenu li {
            list-style: none;
        }

        .submenu a {
            display: block;
            box-sizing: border-box;
            max-width: 139px;
            padding: 8px 12px;
            color: #fff;
            font-size: 16px;
            font-weight: 500;
            text-align: center;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            position: relative;
            transition: background 0.18s ease;
            border-bottom: 1px solid rgba(255, 255, 255, 0.18);
        }

        .submenu li:last-child a {
            border-bottom: none;
        }

        .submenu a:hover {
            /* background: rgba(255, 255, 255, 0.14); */

            /* border-radius: ; */
background: #e91934;
            color: #fff;
        }

        .nav-item>a.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -8px;
            width: 0;
            height: 2px;
            background: #fff;
            transform: translateX(-50%);
        }

        .nav-item:hover .submenu,
        .nav-item:hover .submenu:hover {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
            pointer-events: auto;
        }

        /* ================= 轮播大图 ================= */
        .hero {
            width: 100%;
            height: auto;
            aspect-ratio: 1905 / 460;
            min-height: 260px;
            position: relative;
            overflow: hidden;
            background: #ddd;
        }

        .hero-track {
            position: relative;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        .hero-slide {
            position: absolute;
            inset: 0;
            opacity: 0;
            clip-path: circle(0% at 50% 50%);
            transition: opacity 0.5s ease, clip-path 1s cubic-bezier(0.65, 0, 0.35, 1);
            will-change: clip-path, opacity;
        }

        .hero-slide.active {
            opacity: 1;
            clip-path: circle(100% at 50% 50%);
        }

        .hero-slide.leaving {
            opacity: 0;
            clip-path: circle(0% at 50% 50%);
            transition: opacity 0.4s ease 0.1s, clip-path 0.6s cubic-bezier(0.65, 0, 0.35, 1);
        }

        .hero-slide img {
            display: block;
            width: 100%;
            height: 100%;
            /* object-fit: cover; */
            transform: scale(1.12);
            transition: transform 1.2s cubic-bezier(0.65, 0, 0.35, 1);
        }

        .hero-slide.active img {
            transform: scale(1);
        }

        .hero-slide.leaving img {
            transform: scale(1.08);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.08) 0%, rgba(0, 0, 0, 0.2) 100%);
            z-index: 0;
        }

        .hero-controls {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 2;
        }

        .hero-dot {
            display: inline-block;
            width: 30px;
            height: 4px;
            background: rgba(255, 255, 255, 0.5);
            margin: 0 5px;
            cursor: pointer;
            border: 0;
            padding: 0;
          // border-radius: 999px;
            transition: background 0.3s ease, width 0.3s ease;
        }

        .hero-dot.active {
            width: 44px;
            background: #fff;
        }

        .hero-arrow {
            position: absolute;
            top: 50%;
            width: 42px;
            height: 88px;
            transform: translateY(-50%);
            border-radius: 0 48px 48px 0;
            border: 1px solid rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 3;
            transition: background 0.3s ease, transform 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            backdrop-filter: blur(6px);
        }

        .hero-arrow:hover {
            background: rgba(255, 255, 255, 0.36);
            transform: translateY(-50%) scale(1.02);
        }

        .hero-arrow span {
            font-size: 24px;
            line-height: 1;
            pointer-events: none;
        }

        .hero-arrow.prev {
            left: 0;
            border-radius: 0 60px 60px 0;
        }

        .hero-arrow.next {
            right: 0;
            border-radius: 60px 0 0 60px;
        }

        @media (max-width: 900px) {
            .nav-links {
                flex-wrap: wrap;
                justify-content: flex-start;
                gap: 8px 12px;
            }

            .nav-item {
                flex: 0 0 calc(50% - 6px);
            }

            .submenu {
                left: 0;
                transform: translateY(6px);
                min-width: 140px;
            }

            .nav-item:hover .submenu {
                transform: translateY(0);
            }

            .hero {
                aspect-ratio: 16 / 7;
                min-height: 220px;
            }

            .hero-arrow {
                width: 34px;
                height: 68px;
            }

            .hero-dot {
                width: 22px;
            }

            .hero-dot.active {
                width: 34px;
            }
        }

        /* ================= 公共模块标题 ================= */
        .section-title {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            width: 100%;
            position: relative;
            font-size: 28px;
            font-weight: bold;
            color: var(--primary-red);
            padding: 50px 0 20px;
        }

        .section-title.line-title {
            justify-content: space-between;
        }

        .section-title.line-title::before {
            content: "";
            position: absolute;
            left: 177px;
            right: 0;
            top: 81%;
            height: 1px;
            background: #9b1b13;
            transform: translateY(-50%);
            z-index: 0;
        }

        .section-title.line-title > img,
        .section-title.line-title .section-title-more {
            position: relative;
            z-index: 1;
            background: #fff;
        }

        .section-title.section-title-right {
            justify-content: center;
        }

        .section-title.section-title-right .section-title-more {
            position: absolute;
            right: 0;
            top: 69%;
            transform: translateY(-50%);
        }

        .section-title.section-title-right > img {
            position: relative;
            z-index: 1;
        }

        .section-title-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 16px;
            color: #666;
            font-weight: normal;
        }

        .section-title-more img {
            width: 18px;
            height: 18px;
            display: inline-block;
        }

        .mobile-menu-toggle {
            display: none;
        }

        /* ================= 1. 学院动态 ================= */
        .news-module {
            display: flex;
            justify-content: space-between;
            margin-bottom: 50px;
            gap: 24px;
            align-items: stretch;
        }

        .scroll-animate {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 1.2s ease, transform 1.2s ease;
            will-change: opacity, transform;
        }

        .scroll-animate.from-left {
            transform: translateX(-60px);
        }

        .scroll-animate.from-right {
            transform: translateX(60px);
        }

        .scroll-animate.from-bottom {
            transform: translateY(46px);
        }

        .scroll-animate.from-top {
            transform: translateY(-40px);
        }

        .research-grid {
            opacity: 0;
            transition: opacity 1.2s ease;
            will-change: opacity;
        }

        .research-grid.visible {
            opacity: 1;
        }

        .research-card {
            position: relative;
            overflow: hidden;
            opacity: 0;
            transform: translateY(24px) scale(0.96);
            transform-origin: center;
            transition: opacity 0.7s ease, transform 0.8s cubic-bezier(0.2, 0.9, 0.3, 1);
            will-change: opacity, transform;
        }

        .research-card.visible {
            opacity: 1;
            transform: translateY(0) scale(1);
        }

        .research-card-blinds {
            position: absolute;
            inset: 0;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(8, 1fr);
            gap: 2px;
            pointer-events: none;
        }

        .research-slat {
            background: linear-gradient(180deg, #ffffff 0%, #f4f4f4 100%);
            transform: translateY(0) rotateX(0deg);
            transform-origin: center top;
            opacity: 1;
            transition: transform 0.65s cubic-bezier(0.2, 0.9, 0.3, 1), opacity 0.45s ease;
            will-change: transform, opacity;
        }

        .research-card.visible .research-slat {
            transform: translateY(120%) rotateX(70deg);
            opacity: 0;
        }

        .research-card:nth-child(1) {
            transition-delay: 0.05s;
        }

        .research-card:nth-child(2) {
            transition-delay: 0.15s;
        }

        .research-card:nth-child(3) {
            transition-delay: 0.25s;
        }

        .research-card:nth-child(4) {
            transition-delay: 0.35s;
        }

        .scroll-animate.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .scroll-animate.from-left.visible,
        .scroll-animate.from-right.visible {
            transform: translateX(0);
        }

        .scroll-animate.zoom-up.visible {
            transform: scale(1);
        }

        .notice-list {
            opacity: 0;
            transform: translateY(-24px);
            transition: opacity 1.2s ease, transform 1.2s ease;
        }

        .notice-list.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .notice-list li {
            opacity: 0;
            transform: translateY(-24px);
            transition: opacity 1.2s ease, transform 1.2s ease;
        }

        .notice-list.visible li {
            opacity: 1;
            transform: translateY(0);
        }

        .notice-list.visible li:nth-child(1) {
            transition-delay: 0.1s;

        }

        .notice-list.visible li:nth-child(2) {
            transition-delay: 0.2s;
        }

        .notice-list.visible li:nth-child(3) {
            transition-delay: 0.3s;
        }

        .notice-list.visible li:nth-child(4) {
            transition-delay: 0.4s;
        }

        .notice-list.visible li:nth-child(5) {
            transition-delay: 0.5s;
        }

        .notice-list.visible li:nth-child(6) {
            transition-delay: 0.6s;
        }

        .scroll-animate.zoom-up {
            transform: translateY(20px) scale(0.95);
        }

        .news-focus,
        .news-list {
            opacity: 0;
            animation-duration: 1.4s;
            animation-fill-mode: forwards;
            animation-timing-function: ease-out;
        }

        .news-focus {
            transform: translateX(-50px);
            animation-name: slideInFromLeft;
        }

        .news-list {
            transform: translateX(50px);
            animation-name: slideInFromRight;
            animation-delay: 0.22s;
        }

        @keyframes slideInFromLeft {
            from {
                opacity: 0;
                transform: translateX(-50px);
            }

            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        @keyframes slideInFromRight {
            from {
                opacity: 0;
                transform: translateX(50px);
            }

            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        /* 左侧大图比例约 45% */
        .news-focus {
            width: 55%;
            position: relative;
            overflow: hidden;
            height: 500px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        /* carousel inside news-focus */
        .focus-track {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .focus-slide {
            position: absolute;
            inset: 0;
            opacity: 0;
            transition: opacity 0.45s ease;
        }

        .focus-slide.active {
            opacity: 1;
            z-index: 1;
        }

        .focus-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.25s ease;
        }

        .focus-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%) scale(0.92);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.46);
            backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.18s ease, transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
            z-index: 3;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.18);
        }

        .focus-arrow.prev {
            left: 12px;
        }

        .focus-arrow.next {
            right: 12px;
        }

        .news-focus:hover .focus-arrow {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(-50%) scale(1);
        }

        .focus-arrow:hover {
            /* background: rgba(186, 17, 30, 0.82); */
            border-color: rgba(255, 255, 255, 0.74);
            box-shadow: 0 14px 28px rgba(61, 183, 236, 0.34);
        }

        .news-focus:hover .focus-slide img {
            transform: scale(1.04);
        }

        .news-focus-title {
            position: absolute;
            bottom: 0;
            width: 100%;
            display: flex;
            align-items: center;
            flex-direction: row;
            gap: 14px;
            background: rgba(0, 0, 0, 0.6);
            color: #fff;
            padding: 14px 16px 14px 36px;
            font-size: 19px;
            z-index: 4;
        }

        .news-focus-title-text {
            flex: 1 1 auto;
            min-width: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-focus-dots {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 6px;
            flex: 0 0 auto;
            margin-left: auto;
        }

        .news-focus-dots .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.55);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .news-focus-dots .dot.active {
            background: #c41f2f;
            transform: scale(1.35);
            box-shadow: 0 0 0 3px rgba(196, 31, 47, 0.22);
        }

        .news-text {
            font-weight: 550;
            flex: 1;
            font-size: 19px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: transform 0.2s ease, color 0.2s ease;
        }
                .news-texts {
            font-weight: 550;
            flex: 1;
            font-size: 19px;
            line-height: 1.6;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
            transition: transform 0.2s ease, color 0.2s ease;
        }



        .news-focus-title {
            color: #ffffff;

        }

        .news-focus:hover,
        .news-list li:hover .news-text,
                .news-list li:hover .news-texts,

        .notice-list li:hover .news-text {
            color: var(--primary-red);
        }

        @media (min-width: 769px) {

            .news-focus .focus-arrow {
                opacity: 0;
                font-size: 20px;
            }

            .news-focus .news-focus-title {
                display: flex !important;
                z-index: 9999 !important;
            }
        }

        /* 右侧列表比例约 53% */
        .news-list {
            width: 43%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            height: 500px;
        }

        .news-list li {
            display: flex;
            align-items: center;
            /* border-bottom: 1px dashed #ddd;
            padding-bottom: 14px; */
        }

        /* .news-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        } */

        .date-box {
            width: 64px;
            height: 68px;
            background-color: var(--primary-red);
            color: #fff;
            text-align: center;
            border-radius: 4px;
            position: relative;
            margin-right: 21px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .date-box-bg {
            width: 101px;
            height: 101px;
            color: #fff;
            text-align: center;
            border-radius: 4px;
            position: relative;
            /* margin-right: 21px; */
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            background-image: url(sbtb.png);
            background-repeat: no-repeat;
            background-position: center center;
            background-size: contain;
            margin-right: 15px;
        }

        .date-box-bg .day {
            font-size: 20px;
            font-weight: bold;
            line-height: 0.8;
            color: #a73731;
        }

        .date-box-bg .year-month {
            margin: 4px 0 0 6px;
            font-size: 13px;
            transform: scale(0.9);
            position: relative;
            color: #939393;
              letter-spacing: 6px;

        }

        .date-box::after {
            content: "";
            position: absolute;
            top: -6px;
            left: -6px;
            right: -6px;
            bottom: -6px;
            border: 1px dashed red;
            border-radius: 8px;
            pointer-events: none;
        }

        .date-box .day {
            font-size: 20px;
            font-weight: bold;
            line-height: 1;
        }

        .date-box .year-month {
            font-size: 15px;
            transform: scale(0.9);
            position: relative;
            padding-top: 6px;
        }

        .date-box .year-month::before {
            content: "";
            position: absolute;
            top: 3px;
            left: 6px;
            right: 6px;
            height: 1px;
            background: #fff;
        }

        .news-text {
            font-weight: 550;
            flex: 1;
            font-size: 19px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            border-bottom: 0.5px dashed #ddd;
            padding-bottom: 14px;
        }
                .news-texts {
            font-weight: 550;
            flex: 1;
            font-size: 19px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            /* border-bottom: 0.5px dashed #ddd; */
            padding-bottom: 10px;
        }
        /* ================= 2. 中部红底区域 ================= */
        .red-bg-section {
            /* background-color: #eeefef; */
            background-image: url(bg02.png);
            background-repeat: no-repeat;
            background-position: center center;
            background-size: cover;
            color: #fff;
            padding: 40px 0 60px;
            /* background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px); */
        }

        .red-module-container {
            display: flex;
            justify-content: space-between;
            gap: 40px;
            align-items: stretch;
        }

        .half-col {
            width: 50%;
            display: flex;
            flex-direction: column;

        }

        .red-module-container>.half-col:last-child {
            justify-content: space-between;
        }

        .sub-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            padding-bottom: 10px;
            margin-bottom: 25px;
        }

        .sub-title .notice-more-link {
            display: none;
        }

        .sub-title .notice-more-link.active {
            display: inline-flex;
            align-items: center;
        }

        /* ============ 选项卡样式 ============ */
        .tab-group {
            display: flex;
            gap: 24px;
            align-items: center;
        }

        .tab-item {
            cursor: pointer;
            font-size: 32px;
            color: #fff;
            transition: all 0.25s ease;
            user-select: none;
            position: relative;
        }

        .tab-item.active {
            font-family: "SimHei", "Microsoft YaHei", sans-serif;
            font-weight: bold;
            font-size: 38px;
        }

        .tab-item.notice-tab.active {
            /* padding: 6px 20px; */
            position: relative;
        }

        .tab-item.notice-tab.active::before {
            content: "";
            position: absolute;
            top: -19px;
            left:48%;
            transform: translateX(-50%);
            width: 98%;
            height: 72%;
            background: url(tzgg1.png) no-repeat center bottom;
            background-size: contain;
            pointer-events: none;
        }

        .tab-item:hover:not(.active) {
            /* color: rgba(255, 255, 255, 0.75); */
                        font-family: "SimHei", "Microsoft YaHei", sans-serif;
            font-weight: bold;
            font-size: 38px;
        }

        /* ============ 选项卡面板 ============ */
        .notice-panel {
            display: none;
        }

        .notice-panel.active {
            display: block;
        }

        .sub-title h3 {
            font-size: 22px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sub-title h3::before {
            content: "◆";
            font-size: 14px;
        }

        .sub-title a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 9px;
        }

        .sub-title a img {
            width: 19px;
            height: 19px;
            display: inline-block;
            vertical-align: middle;
        }

        /* 左侧通知公告（白底红字日历） */
        .notice-list {
            background: #fff;
            /* border-radius: 4px; */
            padding: 30px 15px 20px 25px;
            border-bottom: 10px solid #9b1b13;
        }

        .notice-list li {
            display: block;
            margin-bottom: 12.5px;
            padding-bottom: 8px;
            /* border-bottom: 1px dashed #e6e6e6; */
        }

        .notice-list li:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .notice-list .news-text {
            display: block;
            font-weight: 550;
            color: #333;
            font-size: 18px;
            line-height: 1.5;
            /* margin-bottom: 10px; */
            text-decoration: none;
        }
                .notice-list .news-texts {
            display: block;
            width: 100%;
            min-width: 0;
            font-weight: 550;
            color: #333;
            font-size: 18px;
            line-height: 1.5;
            margin-bottom: 10px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            text-decoration: none;
        }

        .notice-date-line {
            display: flex;
            align-items: center;
            gap: 12px;
            width: 100%;
        }

        .notice-date-line::after {
            content: "";
            display: block;
            flex: 1;
            border-bottom: 1px dashed #ddd;
            min-width: 0;
        }

        .notice-list .notice-date {
            color: #c7302c;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            font-style: italic;
        }

        .notice-list a {
            text-decoration: none;
        }

        .notice-list a:hover {
            color: var(--primary-red);
            text-decoration: none;
        }

        /* 右侧学术活动（白色卡片） */
        .activity-card {
            position: relative;
            background: #fff;
            /* background: url(xshd.png) no-repeat center center; */
            /* background-size: cover; */
            color: var(--text-main);
            /* border-radius: 4px; */
            padding: 22px 24px;
            margin-bottom: 20px;
            transition: transform 0.3s;
            min-height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            border-left: 10px solid #9b1b13;
        }

        .activity-card::before {
            content: "";
            position: absolute;
            top: 26px;
            right: 27px;
            width: 114px;
            height: 2px;
            background: #a52a28;
            border-radius: 2px;
        }

        .activity-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        .act-header {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            margin-bottom: 16px;
            border-bottom: none;
            padding-bottom: 0;
        }

        .act-speaker {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
            flex: 1 1 auto;
            min-width: 0;
        }





        .act-speaker p {
            font-weight: bold;
            font-size: 20px;
            margin-bottom: 4px;
            line-height: 1.2;
        }

        .act-speaker span {
            font-size: 16px;
            color: var(--text-light);
        }

        .act-date-tag {
            display: inline-flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: center;
            background: #a52a28;
            color: #fff;
            box-sizing: border-box;
            flex: 0 0 72px;
            /* width: 80px; */
            min-width: 90px;
            padding: 14px 12px;
            /* border-radius: 4px; */
            font-weight: 500;
            text-align: 500;
            font-size: 26px;
            line-height: 1;
        }
/* .act-date-tag:hover,
.act-date-tag:hover span {
    color: #fff;
} */

.act-line{
    display: flex;
    align-items: center;
            min-width: 0;
}

        .act-date-tag span {
            display: block;
            font-size: 18px;
            font-weight: normal;
            font-weight: 500;
            opacity: 0.9;
            margin-top: 4px;
        }

        .act-title {
            font-weight: 600;
            color: #333;
            font-size: 19px;
            margin-bottom: 12px;
            line-height: 1.4;
            min-height: 28px;
            width: 100%;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .act-title:hover {
            color: var(--primary-red);
            font-weight: 600;
        }

        .act-info {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            /* justify-content: center; */
            text-align: center;
        }

        .act-info span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .act-info span img {
            display: inline-block;
            width: 30px;
            height: 30px;
            vertical-align: middle;
        }

        /* ================= 3. 教学科研 ================= */
        .research-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 50px;
        }
.research-content {
    position: relative;
    padding: 24px 22px;
    border-radius: 18px;
    box-sizing: border-box;
    isolation: isolate;
}

.research-content::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 100vw;
    height: 100%;
    background-image: url(bg04.png);
    background-repeat: no-repeat;
    background-position: center top;
    background-size: cover;
    z-index: -1;
}
        .research-card {
            /* background: #fff; */
            background: url(jxkybg.png) no-repeat center center;
            /* background-size: cover; */
            /* border-bottom: 2px solid #c7332f; */

            padding: 20px;
            position: relative;
            border-radius: 4px;
            border: 1px solid #eaeaea;
            transition: box-shadow 0.3s;
        }

        .research-card:hover {
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
            border-color: transparent;
        }

        .rs-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }

        .rs-date {
            font-weight: bold;
            /* color: var(--text-main); */
            color: #c7332f;
            font-size: 22px;
        }

        .rs-date span {
            font-size: 12px;
            font-weight: normal;
            color: #ca1d23;
        }

        .rs-tag {
            background: linear-gradient(90deg, #d24743 0%, #ef7a78 100%);
            /* color: var(--primary-red); */
            color: #FFFFFF;
            padding: 2px 15px;
            font-size: 16px;
            border-radius: 4px;
        }

        .rs-title {
            font-weight: 500;
            font-size: 22px;
            margin-bottom: 15px;
            line-height: 1.5;
            min-height: 42px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rs-meta {
            font-size: 16px;
            color: var(--text-light);
            margin-bottom: 8px;
            display: block;
            width: 100%;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .rs-meta img {
            width: 16px;
            height: 16px;
            display: inline-block;
            vertical-align: middle;
        }

        .rs-author {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid #f0f0f0;
        }

        .rs-author-avatar {
            width: 55px;
            height: 55px;
            border-radius: 50%;
            background: #ddd;
            overflow: hidden;
            display: inline-block;
        }

        .rs-author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            border-radius: 50%;
        }

        .rs-author-name {
            font-size: 22px;
            font-weight: bold;
        }

        .rs-author-title {
            font-size: 16px;
            color: #666666;
        }

        /* ================= 4. 底部圆形导航区 ================= */
        .quick-links {
            display: flex;
            justify-content: space-around;
            align-items: flex-start;
            gap: 24px;
            flex-wrap: wrap;
            /* max-width: 1120px; */
            margin: 40px 10px 70px;
        }

        .q-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            cursor: pointer;
            transition: transform 0.3s ease, filter 0.3s ease;
            width: 150px;
        }

        .q-item img {
            width: 168px;
            height: 168px;
            transition: transform 0.3s ease, filter 0.3s ease;
            object-fit: contain;
        }

        .q-item:hover {
            transform: translateY(-6px);
            filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.12));
        }

        .q-item:hover img {
            transform: scale(1.05);
        }

        .q-item:hover .q-text {
            color: var(--primary-red);
        }

        .q-item:hover .q-circle {
            transform: scale(1.05);
        }

        /* 带有同心圆环的图标效果 */
        .q-circle {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 36px;
            color: #fff;
            margin-bottom: 15px;
            transition: all 0.3s ease;
            position: relative;
        }

        /* 利用伪元素做半透明外圈 */
        .q-circle::before {
            content: "";
            position: absolute;
            top: -8px;
            left: -8px;
            right: -8px;
            bottom: -8px;
            border-radius: 50%;
            z-index: -1;
            opacity: 0.2;
        }

        .bg-orange {
            background-color: #ff9800;
        }

        .bg-orange::before {
            background-color: #ff9800;
        }

        .bg-green {
            background-color: #4caf50;
        }

        .bg-green::before {
            background-color: #4caf50;
        }

        .bg-pink {
            background-color: #e91e63;
        }

        .bg-pink::before {
            background-color: #e91e63;
        }

        .bg-blue {
            background-color: #03a9f4;
        }

        .bg-blue::before {
            background-color: #03a9f4;
        }

        .q-text {
            margin-top: 10px;
            font-size: 16px;
            line-height: 1.4;
            text-align: center;
            font-weight: bold;
            color: var(--text-main);
            text-overflow: ellipsis;
        }

        /* ================= 页脚 ================= */
        .footer {
background: url(bottombg.png) no-repeat center center;
background-size: cover;
            color: rgba(255, 255, 255, 0.7);
            /* padding: 40px 0; */
            font-size: 13px;
        }

        .footer-layout {
            display: flex;
            align-items: flex-start;
            gap: 44px;
            text-align: left;
        }

        .footer-brand {
            flex: 0 0 360px;
        }

        .footer-logo {
            font-size: 20px;
            color: #fff;
            font-weight: bold;
            margin-bottom: 22px;
        }

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

        .footer-links {
            padding-top: 16px;
               flex: 1;
    display: flex;
    gap: 205px;
    flex-wrap: nowrap;
    justify-content: space-around;
        }

        .footer-nav {
            min-width: 300px;
            font-size: 16px;
        }

        .footer-nav h4,
        .footer-info h4 {
            display: inline-block;
            font-size: 20px;
            font-weight: 500;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-link-list {
            display: grid;
            grid-template-rows: repeat(5, auto);
            grid-auto-flow: column;
            gap: 12px 24px;
            align-content: start;
        }

        .footer-copyright {
            width: min(100%, 1390px);
            margin: 26px auto 0;
            padding: 12px 24px 8px;
            border-top: 2px solid #edc1c0;
            text-align: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-nav a,
        .footer-info-row a,
        .footer-info-row span {
            color: rgba(255, 255, 255, 0.8);
        }

        .footer-nav a:hover,
        .footer-info-row a:hover {
            color: #fff;
        }

        .footer-info {
            line-height: 1.9;
            font-size: 16px;
        }

        .footer-info-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }



        .footer-info img {
            height: 35px;
            margin-left: 16px;
            vertical-align: middle;
        }

        .xyxwbg {
            position: relative;
            overflow: hidden;
        }

        .xyxwbg::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url(dtbg.png);
            background-repeat: no-repeat;
            background-position: center center;
            background-size: cover;
            z-index: -1;
        }

        .xyxwbg>* {
            position: relative;
            z-index: 1;
        }