/* ========== 全局样式 ========== */
:root {
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.6);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 品牌视觉Banner ========== */
.brand-banner {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 500px;
    overflow: hidden;
    margin-top: 70px;
}

.banner-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: bannerZoom 20s ease-in-out infinite;
    filter: brightness(0.8);
}

@keyframes bannerZoom {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(to bottom, rgba(15, 23, 42, 0.3) 0%, rgba(15, 23, 42, 0.85) 100%),
        radial-gradient(circle at 50% 40%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 30% 70%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 1200px;
    padding: 2rem;
}

/* 移除brand-logo-section相关样式 */

/* 移除logoEntrance动画 */

/* 移除brand-logo-main img相关样式 */

.brand-tagline {
    animation: fadeInUp 1s ease-out 0.3s both;
    margin-bottom: 2.5rem;
}

.brand-tagline h1 {
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: 4px;
    background: linear-gradient(135deg, #ffffff 0%, #3b82f6 50%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    margin-bottom: 1rem;
    font-family: 'Inter', sans-serif;
    position: relative;
    display: inline-block;
}

.brand-tagline h1::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(139, 92, 246, 0.3));
    filter: blur(20px);
    z-index: -1;
    opacity: 0.8;
}

.tagline-sub {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    letter-spacing: 1.5px;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.9), 0 0 30px rgba(59, 130, 246, 0.3);
    line-height: 1.8;
}

.brand-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.4) 0%, rgba(139, 92, 246, 0.4) 100%);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: white;
    backdrop-filter: blur(15px);
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.5), inset 0 0 15px rgba(255, 255, 255, 0.1);
    animation: iconPulse 2s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.feature-icon::before {
    content: '';
    position: absolute;
    inset: -50%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.feature-item span {
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.9), 0 0 20px rgba(59, 130, 246, 0.4);
    font-family: 'Inter', sans-serif;
    text-transform: uppercase;
}

/* 眼睛装饰元素 */
.eye-decoration {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 3px solid rgba(59, 130, 246, 0.6);
    border-radius: 50%;
    z-index: 5;
    animation: eyeBlink 4s ease-in-out infinite;
}

.eye-left {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.eye-right {
    bottom: 20%;
    right: 10%;
    animation-delay: 2s;
}

.eye-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.8) 0%, transparent 70%);
    border-radius: 50%;
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes eyeBlink {
    0%, 95%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    97% {
        transform: scale(0.9);
        opacity: 0.3;
    }
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.8), 0 0 40px rgba(59, 130, 246, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(59, 130, 246, 1), 0 0 80px rgba(59, 130, 246, 0.6);
    }
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.nav-brand:hover {
    transform: scale(1.05);
}

.nav-logo {
    height: 40px;
    width: auto;
    filter: brightness(1.8) contrast(1.2);
    transition: filter 0.3s ease, transform 0.3s ease;
}

.nav-brand:hover .nav-logo {
    filter: brightness(2) contrast(1.3) drop-shadow(0 0 10px rgba(59, 130, 246, 0.8));
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* ========== 英雄区域 ========== */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 50%, #1e1b4b 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><linearGradient id="grad1" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:rgb(59,130,246);stop-opacity:0.05" /><stop offset="100%" style="stop-color:rgb(139,92,246);stop-opacity:0.05" /></linearGradient></defs><rect width="1200" height="600" fill="url(%23grad1)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    text-align: center;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
    animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(20deg); }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-muted);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    width: 6px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 3px;
    margin-top: 8px;
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scroll {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(20px); }
}

/* ========== 通用区块样式 ========== */
section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ========== 关于我们 ========== */
.about {
    background: var(--dark-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========== 合作伙伴 ========== */
.partners {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

/* Logo墙 */
.partners-logo-wall {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
    padding: 3rem;
    background: var(--dark-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.academic-partners {
    margin-bottom: 3rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.logo-wall-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 2rem;
    min-height: 140px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 15px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.logo-wall-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.logo-wall-item:hover::before {
    opacity: 1;
}

.logo-wall-item:hover {
    transform: translateY(-10px) scale(1.05);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.logo-wall-item img {
    max-width: 100%;
    max-height: 140px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: brightness(1.2) contrast(1.15) saturate(0.98);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.logo-wall-item:hover img {
    filter: brightness(1.4) contrast(1.25) saturate(1.08);
    transform: scale(1.08);
}

/* 学术机构Logo特殊处理 */
.academic-partners .logo-wall-item img {
    max-height: 150px;
}

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-color) 50%, transparent 100%);
    margin: 3rem 0;
}

/* 删除旧的文字标签样式 */

/* ========== 获奖荣誉 ========== */
.awards {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 50%, var(--dark-bg) 100%);
    position: relative;
    overflow: hidden;
}

.awards::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.awards-intro {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: 1rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.awards-categories {
    display: grid;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.award-category {
    background: var(--dark-card);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.award-category:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.category-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    flex-shrink: 0;
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
}

.category-title h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.category-title p {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.category-desc {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
    padding-left: 85px;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.award-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: floatIn 0.6s ease forwards;
    opacity: 0;
    transform: translateY(30px);
}

@keyframes floatIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.award-card[data-delay="0"] { animation-delay: 0s; }
.award-card[data-delay="0.1"] { animation-delay: 0.1s; }
.award-card[data-delay="0.2"] { animation-delay: 0.2s; }
.award-card[data-delay="0.3"] { animation-delay: 0.3s; }

.award-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.award-card:hover::before {
    opacity: 1;
}

.award-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.3);
}

.award-card.gold {
    border-color: rgba(255, 215, 0, 0.5);
}

.award-card.gold:hover {
    border-color: #ffd700;
    box-shadow: 0 15px 40px rgba(255, 215, 0, 0.4);
}

.award-card.gold .award-badge {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: #1e293b;
}

.award-card.bronze {
    border-color: rgba(205, 127, 50, 0.5);
}

.award-card.bronze:hover {
    border-color: #cd7f32;
    box-shadow: 0 15px 40px rgba(205, 127, 50, 0.4);
}

.award-card.bronze .award-badge {
    background: linear-gradient(135deg, #cd7f32 0%, #e9a96c 100%);
}

.award-badge {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
    animation: badgeFloat 3s ease-in-out infinite;
}

@keyframes badgeFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-10px) rotate(5deg);
    }
    50% {
        transform: translateY(0px) rotate(0deg);
    }
    75% {
        transform: translateY(-10px) rotate(-5deg);
    }
}

.award-card h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.award-title {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
}

.award-card.gold .award-title {
    color: #ffd700;
}

.award-card.bronze .award-title {
    color: #cd7f32;
}

/* 成就统计 */
.awards-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
    padding: 3rem;
    background: var(--dark-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ========== 学术导师与视觉领航 ========== */
.advisor {
    background: var(--dark-bg);
}

.advisors-grid {
    display: grid;
    gap: 3rem;
}

.advisor-card {
    background: var(--dark-card);
    border-radius: 20px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.advisor-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.advisor-image {
    overflow: hidden;
}

.advisor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.advisor-card:hover .advisor-image img {
    transform: scale(1.05);
}

.advisor-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.advisor-content h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.advisor-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.advisor-info {
    margin-bottom: 1.5rem;
}

.advisor-info p {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.advisor-info i {
    color: var(--accent-color);
    width: 20px;
}

.advisor-description p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========== 核心团队 ========== */
.team {
    background: linear-gradient(180deg, var(--dark-card) 0%, var(--dark-bg) 100%);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.team-card {
    background: var(--dark-card);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.team-image {
    position: relative;
    overflow: hidden;
    height: 350px;
}

.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.team-card:hover .team-image img {
    transform: scale(1.1);
}

.team-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.8) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.team-card:hover .team-overlay {
    opacity: 1;
}

.view-details {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-details:hover {
    background: var(--secondary-color);
    transform: scale(1.05);
}

.team-info {
    padding: 1.5rem;
}

.team-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.team-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.team-focus {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========== 未来规划 ========== */
.future {
    background: var(--dark-bg);
}

.future-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.future-card {
    background: var(--dark-card);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.future-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.future-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    color: white;
}

.future-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.future-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--dark-card);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-logo img {
    height: 40px;
    width: auto;
    filter: brightness(1.8) contrast(1.2);
    opacity: 0.9;
    transition: opacity 0.3s ease, filter 0.3s ease;
}

.footer-logo:hover img {
    opacity: 1;
    filter: brightness(2) contrast(1.3) drop-shadow(0 0 10px rgba(59, 130, 246, 0.6));
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-top: 1rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* ========== 弹窗 ========== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 滚动提示动画 */
@keyframes scrollPulse {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(5px);
        opacity: 0.8;
    }
}

.modal-content {
    position: relative;
    background: var(--dark-card);
    margin: 5% auto;
    padding: 0;
    width: 90%;
    max-width: 900px;
    border-radius: 15px;
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease;
    max-height: 90vh;
    overflow: hidden;
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 成员详情容器滚动优化 */
.member-detail-container {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--dark-bg);
    position: relative;
}

.member-detail-container::-webkit-scrollbar {
    width: 8px;
}

.member-detail-container::-webkit-scrollbar-track {
    background: var(--dark-bg);
    border-radius: 10px;
}

.member-detail-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
    transition: background 0.3s ease;
}

.member-detail-container::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 成就部分动画 */
.achievements-section {
    animation: fadeInUp 0.5s ease-out 0.3s both;
}

/* 滚动提示高亮效果 */
.scroll-hint:hover {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    cursor: pointer;
    transform: scale(1.02);
    transition: all 0.3s ease;
}

/* 返回顶部按钮悬停效果 */
.scroll-to-top-btn:active {
    transform: scale(0.98);
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.6);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 2rem;
    color: var(--text-primary);
    cursor: pointer;
    z-index: 1;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--primary-color);
}

/* ========== 社交媒体平台区域 ========== */
.social-platforms-section {
    background: var(--dark-bg);
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.platform-card {
    background: var(--dark-card);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    text-decoration: none;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.platform-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.platform-card:hover::before {
    opacity: 1;
}

.platform-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.3);
}

.platform-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    position: relative;
    z-index: 1;
    transition: all 0.4s ease;
}

.platform-card:hover .platform-icon {
    transform: scale(1.1) rotate(5deg);
}

/* 各平台配色 */
.xiaohongshu {
    background: linear-gradient(135deg, #ff2442 0%, #ff6e7f 100%);
    box-shadow: 0 8px 25px rgba(255, 36, 66, 0.4);
}

.douyin {
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.kuaishou {
    background: linear-gradient(135deg, #ff6600 0%, #ff9944 100%);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.4);
}

.jimeng {
    background: linear-gradient(135deg, #00c9ff 0%, #92fe9d 100%);
    box-shadow: 0 8px 25px rgba(0, 201, 255, 0.4);
}

.bilibili {
    background: linear-gradient(135deg, #00a1d6 0%, #00b5e5 100%);
    box-shadow: 0 8px 25px rgba(0, 161, 214, 0.4);
}

.shipinhao {
    background: linear-gradient(135deg, #07c160 0%, #38d965 100%);
    box-shadow: 0 8px 25px rgba(7, 193, 96, 0.4);
}

.keling {
    background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

.platform-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.platform-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 搜索提示 */
.search-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 2rem;
    background: rgba(59, 130, 246, 0.05);
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: 15px;
    max-width: 900px;
    margin: 0 auto;
}

.search-hint i {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.search-hint p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

.search-hint strong {
    color: var(--primary-color);
    font-weight: 700;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .brand-banner {
        height: 50vh;
        min-height: 400px;
        margin-top: 60px;
    }

    .nav-logo {
        height: 32px;
    }

    .brand-tagline h1 {
        font-size: 1.3rem;
        letter-spacing: 2px;
    }

    .brand-tagline h1::before {
        display: none;
    }

    .tagline-sub {
        font-size: 0.9rem;
    }

    .brand-features {
        gap: 1.5rem;
    }

    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .feature-item span {
        font-size: 0.75rem;
    }

    .eye-decoration {
        width: 50px;
        height: 50px;
        border-width: 2px;
    }

    .eye-glow {
        width: 20px;
        height: 20px;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--dark-card);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: 60vh;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .award-category {
        padding: 2rem 1.5rem;
    }

    .category-header {
        flex-direction: column;
        text-align: center;
    }

    .category-desc {
        padding-left: 0;
    }

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

    .awards-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding: 2rem 1rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .advisors-grid {
        gap: 2rem;
    }

    .advisor-card {
        grid-template-columns: 1fr;
    }

    .advisor-image {
        height: 400px;
    }

    .team-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .modal-content {
        width: 95%;
        margin: 5% auto;
        max-height: 90vh;
        border-radius: 15px 15px 0 0;
    }
    
    .member-detail-container {
        padding: 1.5rem !important;
        max-height: 85vh !important;
    }
    
    .scroll-hint {
        position: sticky;
        top: 0;
        z-index: 10;
        margin-top: -1rem;
        margin-left: -1.5rem;
        margin-right: -1.5rem;
        margin-bottom: 1rem;
    }
    
    .achievements-section {
        margin-bottom: 1rem;
    }
    
    /* 优化移动端按钮交互 */
    .scroll-to-top-btn {
        position: sticky;
        bottom: 0;
        width: 100%;
        margin-left: -1.5rem;
        margin-right: -1.5rem;
        margin-bottom: -1.5rem;
        border-radius: 0 0 15px 15px !important;
        padding: 1rem !important;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
    }

    .partners-logo-wall {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 1.5rem;
        padding: 2rem 1.5rem;
    }

    .logo-wall-item {
        padding: 1.5rem 1rem;
        min-height: 120px;
    }

    .logo-wall-item img {
        max-height: 90px;
    }

    .academic-partners {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }

    .academic-partners .logo-wall-item img {
        max-height: 100px;
    }

    /* 社交媒体平台移动端样式 */
    .platforms-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .platform-card {
        padding: 2rem 1.5rem;
    }

    .platform-icon {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }

    .platform-card h3 {
        font-size: 1.1rem;
    }

    .platform-card p {
        font-size: 0.85rem;
    }

    .search-hint {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .search-hint i {
        font-size: 1.5rem;
    }

    .search-hint p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .platforms-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }

    .platform-card {
        padding: 1.8rem 1.2rem;
    }

    .platform-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}