/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.9);
    color: white;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #4a90e2;
    display: flex;
    align-items: center;
}

.logo-img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: white;
    font-weight: 500;
    transition: color 0.3s ease;
    display: inline-block;
    padding: 8px 0;
}

.nav-links a:hover {
    color: #4a90e2;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 英雄区 */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #000000 0%, #1a1a2e 50%, #16213e 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

#constellation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
    z-index: 2;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #4a90e2;
    color: white;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #357abd;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #4a90e2;
    margin-left: 15px;
}

.btn-outline:hover {
    background-color: #4a90e2;
}

/* 核心板块 */
.section {
    padding: 100px 0;
    background-color: white;
}

.section-alt {
    background-color: #f9f9f9;
}

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

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #333;
}

.section-title p {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 核心介绍板块 */
.core-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.core-content h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
}

.core-content p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.8;
}

.core-content ul {
    list-style: none;
    margin-bottom: 20px;
}

.core-content li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    color: #666;
}

.core-content li:before {
    content: "•";
    color: #4a90e2;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.architecture {
    margin-top: 60px;
}

.arch-item {
    margin-bottom: 30px;
    padding: 24px;
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    border-radius: 16px;
    transition: all 0.4s ease;
    border: 1px solid rgba(74, 144, 226, 0.3);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 40px rgba(74, 144, 226, 0.15) inset, 0 0 0 1px rgba(74, 144, 226, 0.2);
}

.arch-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff, #5b6ef7, #4a90e2);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
}

.arch-item::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(74, 144, 226, 0.15), transparent, rgba(124, 77, 255, 0.15), transparent);
    transform: rotate(45deg);
    animation: shimmer 4s infinite;
}

.arch-item:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.3), 0 0 60px rgba(124, 77, 255, 0.2) inset, 0 0 0 1px rgba(74, 144, 226, 0.5);
    border-color: rgba(74, 144, 226, 0.6);
}

.arch-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #e2e8f0;
    position: relative;
    z-index: 1;
    border-left: 4px solid #4a90e2;
    padding-left: 15px;
    text-shadow: 0 0 10px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.arch-item p {
    color: #94a3b8;
    position: relative;
    z-index: 1;
    line-height: 1.6;
    transition: all 0.3s ease;
}

.arch-item:hover h4 {
    color: #4a90e2;
    text-shadow: 0 0 15px rgba(74, 144, 226, 0.6);
}

.arch-item:hover p {
    color: #cbd5e1;
}

/* 福利体系板块 */
.general-welfare {
    margin-top: 40px;
    margin-bottom: 40px;
}

.general-welfare .welfare-card {
    max-width: 100%;
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    border: 1px solid rgba(74, 144, 226, 0.3);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 40px rgba(74, 144, 226, 0.15) inset, 0 0 0 1px rgba(74, 144, 226, 0.2);
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.general-welfare .welfare-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff, #5b6ef7, #4a90e2);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
}

.general-welfare .welfare-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(74, 144, 226, 0.15), transparent, rgba(124, 77, 255, 0.15), transparent);
    transform: rotate(45deg);
    animation: shimmer 4s infinite;
}

.general-welfare .welfare-card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.3), 0 0 60px rgba(124, 77, 255, 0.2) inset, 0 0 0 1px rgba(74, 144, 226, 0.5);
    border-color: rgba(74, 144, 226, 0.6);
}

.star-welfare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.welfare-card {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 40px rgba(74, 144, 226, 0.15) inset, 0 0 0 1px rgba(74, 144, 226, 0.2);
    transition: all 0.4s ease;
    border: 1px solid rgba(74, 144, 226, 0.3);
    position: relative;
    overflow: hidden;
}

.welfare-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff, #5b6ef7, #4a90e2);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
}

.welfare-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(74, 144, 226, 0.15), transparent, rgba(124, 77, 255, 0.15), transparent);
    transform: rotate(45deg);
    animation: shimmer 4s infinite;
}

.welfare-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.3), 0 0 60px rgba(124, 77, 255, 0.2) inset, 0 0 0 1px rgba(74, 144, 226, 0.5);
    border-color: rgba(74, 144, 226, 0.6);
}

.welfare-card h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #e2e8f0;
    border-left: 4px solid #4a90e2;
    padding-left: 15px;
    font-weight: 600;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(74, 144, 226, 0.3);
}

.welfare-card ul {
    list-style: none;
    position: relative;
    z-index: 1;
}

.welfare-card li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    color: #94a3b8;
    transition: all 0.3s ease;
    line-height: 1.6;
}

.welfare-card li:before {
    content: "▶";
    color: #4a90e2;
    font-weight: bold;
    position: absolute;
    left: 0;
    text-shadow: 0 0 8px rgba(74, 144, 226, 0.6);
    transition: all 0.3s ease;
}

.welfare-card:hover h3 {
    color: #4a90e2;
    text-shadow: 0 0 15px rgba(74, 144, 226, 0.6);
}

.welfare-card:hover li {
    color: #cbd5e1;
    transform: translateX(5px);
}

.welfare-card:hover li:before {
    color: #7c4dff;
    text-shadow: 0 0 12px rgba(124, 77, 255, 0.8);
    transform: scale(1.2);
}

/* 响应式设计 - 福利体系 */
@media (max-width: 768px) {
    .general-welfare {
        margin-top: 30px;
        margin-bottom: 40px;
    }
    
    .general-welfare .welfare-card {
        padding: 24px;
        border-radius: 12px;
        box-shadow: 0 4px 16px rgba(74, 144, 226, 0.15);
    }
    
    .general-welfare .welfare-card h3 {
        font-size: 20px;
        margin-bottom: 20px;
        color: #4a90e2;
        text-align: center;
    }
    
    .star-welfare-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .welfare-card {
        padding: 20px;
        border-radius: 12px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }
    
    .welfare-card h3 {
        font-size: 18px;
        margin-bottom: 18px;
        color: #333;
        text-align: center;
        padding-bottom: 12px;
        border-bottom: 1px solid rgba(74, 144, 226, 0.2);
    }
    
    .welfare-card ul {
        margin-top: 16px;
    }
    
    .welfare-card li {
        font-size: 15px;
        margin-bottom: 12px;
        padding-left: 24px;
        line-height: 1.5;
    }
    
    .welfare-card li:before {
        font-size: 16px;
        color: #4a90e2;
    }
}

/* 固定星主介绍LOGO */
.fixed-starmaster-logo {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    color: #ffffff;
    line-height: 25px;
    background: linear-gradient(135deg, #4a90e2 0%, #7c4dff 100%);
    padding: 8px;
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.6);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.fixed-starmaster-logo:hover {
    transform: scale(1.15);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.8);
}

.fixed-starmaster-logo img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}
/* 星主招募板块 */
.recruitment-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.step-card {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 40px rgba(74, 144, 226, 0.15) inset, 0 0 0 1px rgba(74, 144, 226, 0.2);
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(74, 144, 226, 0.3);
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff, #5b6ef7, #4a90e2);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
}

.step-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(74, 144, 226, 0.15), transparent, rgba(124, 77, 255, 0.15), transparent);
    transform: rotate(45deg);
    animation: shimmer 4s infinite;
}

.step-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.3), 0 0 60px rgba(124, 77, 255, 0.2) inset, 0 0 0 1px rgba(74, 144, 226, 0.5);
    border-color: rgba(74, 144, 226, 0.6);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4a90e2 0%, #7c4dff 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.step-card:hover .step-number {
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
    transform: scale(1.05);
}

.step-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #e2e8f0;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.step-card p {
    color: #94a3b8;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.step-card:hover h3 {
    color: #4a90e2;
    text-shadow: 0 0 15px rgba(74, 144, 226, 0.6);
}

.step-card:hover p {
    color: #cbd5e1;
}

/* 二维码容器 */
.qr-code-container {
    text-align: center;
    background: linear-gradient(145deg, #ffffff, #f8faff);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1), 0 0 30px rgba(74, 144, 226, 0.05) inset;
    max-width: 400px;
    margin: 0 auto;
    transition: all 0.3s ease;
    border: 1px solid rgba(74, 144, 226, 0.1);
    position: relative;
    overflow: hidden;
}

.qr-code-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff, #5b6ef7);
}

.qr-code-container::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(74, 144, 226, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 6s infinite;
}

.qr-code-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(74, 144, 226, 0.2), 0 0 40px rgba(74, 144, 226, 0.1) inset;
    border-color: rgba(74, 144, 226, 0.3);
}

.qr-code-container h3 {
    color: #4a90e2;
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.qr-code-img {
    margin: 20px 0;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.qr-code {
    width: 200px;
    height: 200px;
    border: 2px solid rgba(74, 144, 226, 0.3);
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.2);
    transition: all 0.3s ease;
}

.qr-code:hover {
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.3);
    transform: scale(1.02);
}

.qr-note {
    color: #666;
    font-size: 14px;
    margin-top: 15px;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.qr-code-container:hover .qr-note {
    color: #5b6ef7;
}

/* 合作项目板块 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.project-card {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 40px rgba(74, 144, 226, 0.15) inset, 0 0 0 1px rgba(74, 144, 226, 0.2);
    transition: all 0.4s ease;
    border: 1px solid rgba(74, 144, 226, 0.3);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff, #5b6ef7, #4a90e2);
    background-size: 200% auto;
    animation: gradient-shift 3s ease infinite;
}

.project-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(74, 144, 226, 0.15), transparent, rgba(124, 77, 255, 0.15), transparent);
    transform: rotate(45deg);
    animation: shimmer 4s infinite;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(74, 144, 226, 0.2);
    border-color: rgba(74, 144, 226, 0.3);
}

.project-img {
    height: 180px;
    background: linear-gradient(135deg, #4a90e2 0%, #5b6ef7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: white;
    position: relative;
    overflow: hidden;
}

.project-img::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

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

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.project-content {
    padding: 24px;
}

.project-content h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: #e2e8f0;
    border-left: 3px solid #4a90e2;
    padding-left: 12px;
    font-weight: 600;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.project-content p {
    color: #94a3b8;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.project-card:hover .project-content h3 {
    color: #4a90e2;
    text-shadow: 0 0 15px rgba(74, 144, 226, 0.6);
}

.project-card:hover .project-content p {
    color: #cbd5e1;
}

/* 页脚 */
.footer {
    background-color: #333;
    color: white;
    padding: 60px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #4a90e2;
}

.footer-section p,
.footer-section li {
    margin-bottom: 10px;
    color: #ccc;
}

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

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #ccc;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 导航栏 */
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 50px 0;
        clip-path: circle(0px at 90% -10%);
        -webkit-clip-path: circle(0px at 90% -10%);
        transition: all 0.5s cubic-bezier(0.77, 0.2, 0.05, 1);
        pointer-events: none;
        z-index: 999;
        backdrop-filter: blur(10px);
    }
    
    .nav-links.active {
        clip-path: circle(1500px at 90% -10%);
        -webkit-clip-path: circle(1500px at 90% -10%);
        pointer-events: all;
    }
    
    .nav-links li {
        margin: 12px 0;
        transform: translateY(20px);
        opacity: 0;
        transition: all 0.3s ease;
    }
    
    .nav-links.active li {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav-links.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav-links.active li:nth-child(4) { transition-delay: 0.4s; }
    .nav-links.active li:nth-child(5) { transition-delay: 0.5s; }
    
    .nav-links a {
        font-size: 18px;
        padding: 20px 32px;
        min-width: 180px;
        text-align: center;
        border-radius: 12px;
        min-height: 56px;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: rgba(74, 144, 226, 0.08);
        border: 1px solid rgba(74, 144, 226, 0.2);
        transition: all 0.3s ease;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links a:hover {
        background-color: rgba(74, 144, 226, 0.2);
        border-color: rgba(74, 144, 226, 0.5);
        transform: translateY(-2px);
        box-shadow: 0 4px 16px rgba(74, 144, 226, 0.2);
    }
    
    .nav-links a:active {
        transform: translateY(0);
        box-shadow: 0 2px 8px rgba(74, 144, 226, 0.15);
    }
    
    .mobile-menu-btn {
        display: block;
        font-size: 36px;
        min-width: 60px;
    }
    
    .mobile-menu-btn:hover {
        background-color: rgba(74, 144, 226, 0.25);
        border-color: rgba(74, 144, 226, 0.5);
        transform: scale(1.05);
    }
    
    .mobile-menu-btn:active {
        background-color: rgba(74, 144, 226, 0.3);
        transform: scale(0.95);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
    }
    
    /* 导航容器 */
    .nav-container {
        padding: 0 15px;
        height: 80px;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .logo-img {
        width: 36px;
        height: 36px;
        margin-right: 8px;
    }
    
    /* 英雄区 */
    .hero {
        height: auto;
        min-height: 100vh;
        padding: 120px 0 80px;
    }
    
    #constellation {
        opacity: 0.6;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .hero h1 {
        font-size: 36px;
        margin-bottom: 20px;
        line-height: 1.2;
        text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }
    
    .hero p {
        font-size: 18px;
        margin-bottom: 30px;
        line-height: 1.5;
        opacity: 0.95;
        text-shadow: 0 1px 5px rgba(0, 0, 0, 0.4);
    }
    
    .hero-content div {
        display: flex;
        flex-direction: column;
        gap: 16px;
        padding: 0 20px;
    }
    
    .btn {
        display: block;
        margin: 0;
        width: 100%;
        text-align: center;
        padding: 18px 30px;
        min-height: 54px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        border-radius: 12px;
    }
    
    .btn-outline {
        margin-left: 0;
        border-width: 2px;
    }
    
    /* 核心介绍 */
    .core-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* 板块标题 */
    .section-title h2 {
        font-size: 24px;
    }
    
    .section-title p {
        font-size: 14px;
    }
    
    /* 核心内容 */
    .core-content h3 {
        font-size: 20px;
        margin-bottom: 16px;
    }
    
    .core-content p {
        font-size: 14px;
        line-height: 1.6;
    }
    
    /* 步骤卡片 */
    .recruitment-steps {
        grid-template-columns: 1fr;
    }
    
    /* 合作项目 */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    /* 页脚 */
    .footer {
        padding: 40px 0;
    }
    
    .footer-content {
        gap: 30px;
    }
    
    .footer-section h3 {
        font-size: 16px;
        margin-bottom: 16px;
    }
    
    .footer-section p,
    .footer-section li {
        font-size: 14px;
    }
    
    /* 板块间距 */
    .section {
        padding: 60px 0;
    }
    
    /* 容器内边距 */
    .container {
        padding: 0 15px;
    }
    
    /* 架构项 */
    .arch-item {
        padding: 16px;
    }
    
    .arch-item h4 {
        font-size: 16px;
    }
    
    .arch-item p {
        font-size: 14px;
    }
    
    /* 二维码容器 */
    .qr-code-container {
        padding: 30px 20px;
        margin: 0 -15px;
        border-radius: 0;
        box-shadow: 0 0 0 rgba(0,0,0,0);
        border-top: 1px solid #eee;
        border-bottom: 1px solid #eee;
    }
    
    .qr-code-container h3 {
        font-size: 18px;
        margin-bottom: 16px;
        color: #4a90e2;
    }
    
    .qr-code {
        width: 180px;
        height: 180px;
    }
    
    .qr-note {
        font-size: 14px;
        margin-top: 12px;
        color: #666;
        line-height: 1.5;
    }
}

/* 申请表单 */
.form {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(74, 144, 226, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4a90e2, #7c4dff);
}

.form::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(74, 144, 226, 0.05) 0%, transparent 100%);
}

.form:hover {
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.15);
    border-color: rgba(74, 144, 226, 0.4);
}

.form h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #334155;
    text-align: center;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(74, 144, 226, 0.2);
    transition: all 0.3s ease;
}

.form:hover h3 {
    color: #4a90e2;
    text-shadow: 0 0 15px rgba(74, 144, 226, 0.4);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #334155;
    transition: all 0.3s ease;
}

.form:hover .form-group label {
    color: #1e293b;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background-color: #ffffff;
    color: #334155;
}

.form-group input[type="text"]:focus,
.form-group input[type="tel"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.15);
    background-color: rgba(255, 255, 255, 0.95);
}

.form-group input[type="file"] {
    padding: 12px;
    border: 1px solid rgba(74, 144, 226, 0.2);
    border-radius: 8px;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    color: #334155;
    transition: all 0.3s ease;
}

.form-group input[type="file"]:hover {
    border-color: #4a90e2;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group.form-checkbox {
    display: flex;
    align-items: flex-start;
}

.form-group.form-checkbox input[type="checkbox"] {
    margin-right: 10px;
    margin-top: 3px;
    width: auto;
    accent-color: #4a90e2;
}

.form-group.form-checkbox label {
    margin-bottom: 0;
    flex: 1;
    color: #64748b;
}

.form-note {
    font-size: 14px;
    color: #64748b;
    margin-top: 5px;
}

.form-actions {
    margin-top: 30px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.form-actions .btn {
    min-width: 200px;
    padding: 16px 40px;
    font-size: 18px;
    border-radius: 12px;
    background: linear-gradient(135deg, #4a90e2 0%, #7c4dff 100%);
    border: none;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.form-actions .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

/* 响应式设计 - 表单 */
@media (max-width: 768px) {
    .form {
        padding: 28px;
        margin: 0 -15px;
        border-radius: 0;
        box-shadow: 0 4px 16px rgba(74, 144, 226, 0.15);
        border-top: 1px solid rgba(74, 144, 226, 0.3);
        border-bottom: 1px solid rgba(74, 144, 226, 0.3);
        border-left: none;
        border-right: none;
        background: linear-gradient(145deg, #f8fafc 0%, #e2e8f0 100%);
    }
    
    .form h3 {
        font-size: 20px;
        margin-bottom: 24px;
        text-align: center;
        color: #334155;
        text-shadow: 0 0 8px rgba(74, 144, 226, 0.2);
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 24px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .form-group label {
        font-size: 16px;
        margin-bottom: 8px;
        color: #334155;
        font-weight: 600;
    }
    
    .form-group input[type="text"],
    .form-group input[type="tel"],
    .form-group input[type="email"],
    .form-group input[type="number"],
    .form-group select,
    .form-group textarea {
        min-height: 54px;
        padding: 18px;
        font-size: 16px;
        border-radius: 8px;
        border: 1px solid rgba(74, 144, 226, 0.3);
        background-color: rgba(255, 255, 255, 0.9);
        color: #334155;
    }
    
    .form-actions .btn {
        width: 100%;
        min-height: 56px;
        padding: 16px;
        font-size: 16px;
    }
    
    /* 步骤卡片 */
    .step-card {
        padding: 24px;
        border-radius: 12px;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    /* 二维码容器 */
    .qr-code-container {
        padding: 30px 20px;
        margin: 0 -15px;
        border-radius: 0;
        box-shadow: 0 0 0 rgba(0,0,0,0);
        border-top: 1px solid rgba(74, 144, 226, 0.2);
        border-bottom: 1px solid rgba(74, 144, 226, 0.2);
        border-left: none;
        border-right: none;
    }
    
    /* 架构项 */
    .arch-item {
        padding: 20px;
        border-radius: 12px;
    }
    
    .arch-item h4 {
        font-size: 16px;
    }
    
    /* 福利卡片 */
    .welfare-card {
        padding: 20px;
        border-radius: 12px;
    }
    
    /* 项目卡片 */
    .project-card {
        border-radius: 12px;
    }
    
    .project-img {
        height: 150px;
    }
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}