:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #7c9eff;
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --light-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.3);
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #f0f2f5;
    --text-dark: #1a1a2e;
    --text-gray: #5a5a6e;
    --text-light: #8a8a9e;
    --border-color: #e0e4e8;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-dark);
    background: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
    transform: translateY(-2px);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.section-title {
    font-size: 42px;
    text-align: center;
    margin-bottom: 64px;
    position: relative;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.section {
    padding: 100px 0;
}

.btn-more {
    display: inline-block;
    padding: 14px 36px;
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    margin-top: 28px;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-more::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: var(--transition);
}

.btn-more:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.5);
    color: var(--bg-white);
}

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

.btn-apply {
    display: inline-block;
    padding: 12px 32px;
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-apply:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    color: var(--bg-white);
}

.top-bar {
    background: var(--dark-gradient);
    padding: 14px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--bg-white);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-icon {
    font-size: 28px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lang-switch {
    color: var(--bg-white);
    padding: 8px 16px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.lang-switch:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.4);
    color: var(--bg-white);
}

.main-nav {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    z-index: 999;
    border-bottom: 1px solid var(--glass-border);
}

.main-nav .container {
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-list li a {
    display: block;
    padding: 18px 20px;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 15px;
    position: relative;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-list li a:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.08);
}

.nav-list li a:hover::after {
    width: 70%;
}

.hero-carousel {
    position: relative;
    height: 700px;
    background: var(--dark-gradient);
    margin-top: 118px;
    overflow: hidden;
}

.hero-carousel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(118, 75, 162, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-content {
    text-align: center;
    color: var(--bg-white);
    max-width: 900px;
    padding: 0 32px;
    position: relative;
    z-index: 1;
}

.carousel-content h1 {
    font-size: 56px;
    color: var(--bg-white);
    margin-bottom: 24px;
    animation: fadeInUp 1s ease;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.carousel-content p {
    font-size: 24px;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both;
    font-weight: 300;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.carousel-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 16px;
    z-index: 2;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.dot:hover {
    background: rgba(255,255,255,0.6);
}

.dot.active {
    background: var(--bg-white);
    transform: scale(1.3);
    box-shadow: 0 0 20px rgba(255,255,255,0.5);
}

.about-brief {
    background: var(--light-gradient);
    position: relative;
    overflow: hidden;
}

.about-brief::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.brief-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.brief-text {
    font-size: 18px;
    color: var(--text-gray);
    line-height: 2;
    margin-bottom: 24px;
}

.research-directions {
    background: var(--bg-white);
}

.direction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.direction-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.direction-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.direction-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: transparent;
}

.direction-card:hover::before {
    transform: scaleX(1);
}

.direction-icon {
    font-size: 56px;
    margin-bottom: 20px;
    display: inline-block;
    transition: var(--transition);
}

.direction-card:hover .direction-icon {
    transform: scale(1.1);
}

.direction-card h3 {
    font-size: 22px;
    margin-bottom: 14px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.direction-card p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

.latest-news {
    background: var(--bg-gray);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 28px;
}

.news-card {
    background: var(--bg-white);
    padding: 28px;
    border-radius: var(--radius-md);
    border-left: 5px solid transparent;
    background-image: linear-gradient(var(--bg-white), var(--bg-white)), var(--primary-gradient);
    background-origin: border-box;
    background-clip: content-box, border-box;
    border: 2px solid transparent;
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.news-card .news-date {
    font-size: 13px;
    color: var(--text-light);
    margin-right: 14px;
    font-weight: 500;
}

.news-card .news-category {
    font-size: 12px;
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    padding: 5px 14px;
    border-radius: 20px;
    font-weight: 600;
}

.news-card h3 {
    font-size: 17px;
    margin-top: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

.key-projects {
    background: var(--bg-white);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.project-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.project-img {
    height: 200px;
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
}

.project-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.3) 100%);
}

.project-card h3 {
    font-size: 20px;
    padding: 24px 24px 12px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-card p {
    font-size: 15px;
    color: var(--text-gray);
    padding: 0 24px 24px;
    line-height: 1.7;
}

.partners {
    background: var(--light-gradient);
    position: relative;
}

.partners::before {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 36px;
    position: relative;
    z-index: 1;
}

.partner-logo {
    padding: 24px 48px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 17px;
    font-weight: 600;
    color: var(--primary-color);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.partner-logo:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    background: var(--primary-gradient);
    color: var(--bg-white);
}

.about-section {
    background: var(--bg-white);
    margin-top: 118px;
}

.about-overview {
    margin-bottom: 80px;
}

.about-overview h3 {
    font-size: 28px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.overview-item {
    padding: 32px;
    background: var(--light-gradient);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.overview-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.overview-item h4 {
    font-size: 18px;
    margin-bottom: 12px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.overview-item p {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.8;
}

.about-timeline {
    margin-bottom: 80px;
}

.about-timeline h3 {
    font-size: 28px;
    margin-bottom: 40px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline {
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: -44px;
    top: 6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-gradient);
    border: 4px solid var(--bg-white);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
}

.timeline-year {
    display: inline-block;
    padding: 6px 18px;
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-radius: 25px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.timeline-content h4 {
    font-size: 20px;
    margin-bottom: 8px;
    font-weight: 600;
}

.timeline-content p {
    color: var(--text-gray);
    font-size: 15px;
}

.about-structure {
    margin-bottom: 80px;
}

.about-structure h3 {
    font-size: 28px;
    margin-bottom: 40px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.structure-chart {
    text-align: center;
}

.structure-level {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 28px;
}

.structure-box {
    padding: 18px 36px;
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
    transition: var(--transition);
}

.structure-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.about-leadership {
    margin-bottom: 80px;
}

.about-leadership h3 {
    font-size: 28px;
    margin-bottom: 40px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.leader-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.leader-card {
    text-align: center;
    padding: 40px;
    background: var(--light-gradient);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.leader-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.leader-photo {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: var(--primary-gradient);
    margin: 0 auto 24px;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
    transition: var(--transition);
}

.leader-card:hover .leader-photo {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.4);
}

.leader-card h4 {
    font-size: 20px;
    margin-bottom: 8px;
}

.leader-title {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 15px;
}

.leader-card p {
    font-size: 15px;
    color: var(--text-gray);
}

.about-honors h3 {
    font-size: 28px;
    margin-bottom: 40px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.honors-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-item {
    padding: 32px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.honor-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.honor-level {
    display: inline-block;
    padding: 6px 16px;
    background: var(--secondary-gradient);
    color: var(--bg-white);
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 16px;
    font-weight: 600;
}

.honor-item h4 {
    font-size: 17px;
    margin-bottom: 10px;
}

.honor-item p {
    font-size: 14px;
    color: var(--text-gray);
}

.team-section {
    background: var(--bg-gray);
    margin-top: 118px;
}

.team-category {
    margin-bottom: 60px;
}

.team-category h3 {
    font-size: 26px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.team-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.team-photo {
    height: 180px;
    background: var(--primary-gradient);
    position: relative;
}

.team-photo::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.2) 100%);
}

.team-info {
    padding: 24px;
}

.team-card h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.team-title {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 10px;
}

.team-tag {
    display: inline-block;
    padding: 4px 14px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 10px;
    font-weight: 600;
}

.team-field {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 4px;
}

.team-desc {
    font-size: 13px;
    color: var(--text-light);
}

.research-section {
    background: var(--bg-white);
    margin-top: 118px;
}

.research-directions-detail {
    margin-bottom: 80px;
}

.research-directions-detail h3 {
    font-size: 26px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.research-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.research-item {
    padding: 32px;
    background: var(--light-gradient);
    border-radius: var(--radius-lg);
    border-left: 5px solid;
    border-image: var(--primary-gradient) 1;
    transition: var(--transition);
}

.research-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.research-item h4 {
    font-size: 19px;
    margin-bottom: 12px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.research-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

.research-labs {
    margin-bottom: 80px;
}

.research-labs h3 {
    font-size: 26px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.lab-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.lab-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: transparent;
}

.lab-card h4 {
    font-size: 20px;
    margin-bottom: 12px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lab-desc {
    font-size: 15px;
    color: var(--text-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.lab-capability {
    list-style: none;
}

.lab-capability li {
    font-size: 15px;
    color: var(--text-dark);
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
}

.lab-capability li::before {
    content: '✓';
    position: absolute;
    left: 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.research-projects h3 {
    font-size: 26px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.project-item {
    padding: 36px;
    background: var(--light-gradient);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.project-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.project-period {
    display: inline-block;
    padding: 6px 18px;
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-radius: 25px;
    font-size: 13px;
    margin-bottom: 16px;
    font-weight: 600;
}

.project-item h4 {
    font-size: 19px;
    margin-bottom: 10px;
}

.project-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

.results-section {
    background: var(--bg-gray);
    margin-top: 118px;
}

.results-papers {
    margin-bottom: 60px;
}

.results-papers h3,
.results-patents h3,
.results-projects h3,
.results-awards h3,
.results-transfer h3 {
    font-size: 26px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.papers-list {
    display: grid;
    gap: 24px;
}

.paper-item {
    display: flex;
    gap: 24px;
    padding: 28px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.paper-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.paper-year {
    font-size: 28px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 80px;
}

.paper-content h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.paper-content p {
    font-size: 15px;
    color: var(--text-gray);
}

.paper-author {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 8px;
}

.results-patents {
    margin-bottom: 60px;
}

.patents-list {
    display: grid;
    gap: 20px;
}

.patent-item {
    padding: 28px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border-left: 5px solid;
    border-image: var(--secondary-gradient) 1;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.patent-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.patent-type {
    display: inline-block;
    padding: 5px 16px;
    background: var(--secondary-gradient);
    color: var(--bg-white);
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 12px;
    font-weight: 600;
}

.patent-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.patent-item p {
    font-size: 14px;
    color: var(--text-gray);
}

.results-projects {
    margin-bottom: 60px;
}

.project-table {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.project-row {
    display: grid;
    grid-template-columns: 2fr 3fr 1fr;
    padding: 20px 28px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.project-row:hover {
    background: rgba(102, 126, 234, 0.03);
}

.project-row.header {
    background: var(--primary-gradient);
    color: var(--bg-white);
    font-weight: 700;
}

.project-row:last-child {
    border-bottom: none;
}

.status {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    text-align: center;
    font-weight: 600;
}

.status.ongoing {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    color: var(--primary-color);
}

.status.completed {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.15) 0%, rgba(56, 142, 60, 0.15) 100%);
    color: #4caf50;
}

.results-awards {
    margin-bottom: 60px;
}

.awards-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.award-item {
    padding: 32px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.award-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.award-year {
    font-size: 32px;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 12px;
}

.award-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.award-item p {
    font-size: 15px;
    color: var(--text-gray);
}

.transfer-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.transfer-item {
    padding: 36px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.transfer-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.transfer-item h4 {
    font-size: 20px;
    margin-bottom: 14px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.transfer-item p {
    font-size: 15px;
    color: var(--text-gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

.transfer-value {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.news-section {
    background: var(--bg-white);
    margin-top: 118px;
}

.news-filter {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 12px 32px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 15px;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

.news-list {
    display: grid;
    gap: 24px;
}

.news-item {
    padding: 32px;
    background: var(--light-gradient);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.news-item:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.news-item .news-date {
    font-size: 14px;
    color: var(--text-light);
    margin-right: 18px;
    font-weight: 500;
}

.news-item .news-category {
    font-size: 13px;
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    padding: 5px 16px;
    border-radius: 20px;
    font-weight: 600;
}

.news-item h3 {
    font-size: 20px;
    margin: 14px 0;
    font-weight: 600;
}

.news-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

.careers-section {
    background: var(--bg-gray);
    margin-top: 118px;
}

.careers-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.careers-intro p {
    font-size: 18px;
    color: var(--text-gray);
    line-height: 2;
}

.jobs-list {
    display: grid;
    gap: 28px;
    margin-bottom: 60px;
}

.job-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.job-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.job-header h3 {
    font-size: 24px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.job-type {
    padding: 6px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.job-content {
    margin-bottom: 24px;
}

.job-content p {
    margin-bottom: 14px;
    color: var(--text-dark);
    font-size: 16px;
}

.job-content ul {
    margin-left: 24px;
    margin-bottom: 14px;
}

.job-content li {
    color: var(--text-gray);
    font-size: 15px;
    margin-bottom: 8px;
    line-height: 1.8;
}

.contact-info {
    text-align: center;
    padding: 40px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 24px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-info p {
    color: var(--text-gray);
    margin-bottom: 10px;
    font-size: 16px;
}

.cooperation-section {
    background: var(--bg-white);
    margin-top: 118px;
}

.coop-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.coop-intro p {
    font-size: 18px;
    color: var(--text-gray);
    line-height: 2;
}

.coop-directions {
    margin-bottom: 80px;
}

.coop-directions h3,
.coop-process h3,
.coop-contact h3 {
    font-size: 26px;
    margin-bottom: 32px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.coop-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.coop-item {
    padding: 36px;
    background: var(--light-gradient);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.coop-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.coop-item h4 {
    font-size: 19px;
    margin-bottom: 14px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.coop-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

.coop-process {
    margin-bottom: 80px;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    gap: 20px;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.process-step {
    text-align: center;
    flex: 1;
    position: relative;
    z-index: 1;
}

.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    color: var(--bg-white);
    border-radius: 50%;
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 20px;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
    transition: var(--transition);
}

.process-step:hover .step-num {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.5);
}

.process-step h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-gray);
}

.coop-contact {
    text-align: center;
    padding: 48px;
    background: var(--light-gradient);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.coop-contact p {
    color: var(--text-gray);
    margin-bottom: 10px;
    font-size: 16px;
}

.contact-section {
    background: var(--bg-gray);
    margin-top: 118px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-item {
    margin-bottom: 32px;
}

.contact-item h4 {
    font-size: 20px;
    margin-bottom: 14px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-item p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 2;
}

.map-placeholder {
    height: 350px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.map-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.map-placeholder p {
    color: var(--bg-white);
    font-size: 20px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.main-footer {
    background: var(--dark-gradient);
    color: var(--bg-white);
    padding: 80px 0 32px;
    position: relative;
    overflow: hidden;
}

.main-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.main-footer::after {
    content: '';
    position: absolute;
    bottom: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.footer-section h4 {
    color: var(--bg-white);
    font-size: 19px;
    margin-bottom: 24px;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 14px;
}

.footer-section a {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--bg-white);
    transform: translateX(4px);
}

.footer-section p {
    color: rgba(255,255,255,0.7);
    font-size: 15px;
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 14px;
    margin-bottom: 8px;
}

@media (max-width: 1024px) {
    .direction-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-grid,
    .lab-grid,
    .research-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .honors-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .awards-list,
    .transfer-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .coop-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        flex-wrap: wrap;
        gap: 32px;
    }

    .process-steps::before {
        display: none;
    }

    .process-step {
        flex: 0 0 calc(50% - 16px);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .hero-carousel {
        height: 500px;
    }

    .carousel-content h1 {
        font-size: 36px;
    }

    .carousel-content p {
        font-size: 18px;
    }

    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-list li a {
        padding: 14px 12px;
        font-size: 14px;
    }

    .section-title {
        font-size: 32px;
    }

    .direction-grid,
    .project-grid,
    .overview-grid,
    .news-grid,
    .lab-grid,
    .research-list,
    .leader-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .honors-list,
    .awards-list,
    .transfer-list,
    .coop-grid,
    .project-list {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .structure-level {
        flex-direction: column;
        align-items: center;
    }

    .process-step {
        flex: 0 0 100%;
    }

    .project-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .project-row.header {
        display: none;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-dot {
        left: -24px;
        width: 16px;
        height: 16px;
    }
}