:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --background-light: #ffffff;
    --background-dark: #0f172a;
    --surface-light: #f8fafc;
    --surface-dark: #1e293b;
    --text-light: #1e293b;
    --text-dark: #f8fafc;
    --text-muted-light: #64748b;
    --text-muted-dark: #94a3b8;
    --border-light: #e2e8f0;
    --border-dark: #334155;
    --shadow-light: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-dark: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--background-light);
    color: var(--text-light);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

body.dark {
    background-color: var(--background-dark);
    color: var(--text-dark);
}

body.dark .navbar {
    background-color: rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid var(--border-dark);
}

body.dark .nav-link {
    color: var(--text-dark);
}

body.dark .nav-link:hover,
body.dark .nav-link.active {
    color: var(--primary-color);
}

body.dark .hero-section {
    background-color: var(--surface-dark);
}

body.dark .hero-badge,
body.dark .hero-subtitle {
    color: var(--text-muted-dark);
}

body.dark .category-card,
body.dark .stage-card,
body.dark .content-card,
body.dark .faq-item,
body.dark .resource-card {
    background-color: var(--surface-dark);
    border-color: var(--border-dark);
}

body.dark .category-card:hover,
body.dark .stage-card:hover,
body.dark .content-card:hover,
body.dark .faq-item:hover,
body.dark .resource-card:hover {
    border-color: var(--primary-color);
}

body.dark .contact-section {
    background-color: var(--surface-dark);
}

body.dark .footer {
    background-color: var(--surface-dark);
}

body.dark .footer-disclaimer {
    background-color: rgba(30, 41, 59, 0.5);
}

body.dark .back-to-top {
    background-color: var(--surface-dark);
    border-color: var(--border-dark);
}

body.dark .search-modal {
    background-color: rgba(15, 23, 42, 0.95);
}

body.dark .modal-content {
    background-color: var(--surface-dark);
    border-color: var(--border-dark);
}

body.dark #searchInput {
    background-color: var(--background-dark);
    color: var(--text-dark);
    border-color: var(--border-dark);
}

body.dark .result-item {
    border-color: var(--border-dark);
}

body.dark .result-item:hover {
    background-color: var(--background-dark);
}

body.dark .operator-table {
    border-color: var(--border-dark);
}

body.dark .operator-table th,
body.dark .operator-table td {
    border-color: var(--border-dark);
}

body.dark .mobile-menu {
    background-color: var(--surface-dark);
    border-color: var(--border-dark);
}

body.dark .mobile-link {
    color: var(--text-dark);
}

body.dark .mobile-link:hover {
    background-color: var(--background-dark);
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    transition: background-color 0.3s, border-color 0.3s;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4.5rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-light);
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    transition: transform var(--transition-fast);
}

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

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-muted-light);
    margin-left: 0.25rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-btn,
.theme-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: transparent;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition-fast);
}

.search-btn:hover,
.theme-btn:hover {
    background-color: var(--surface-light);
    border-color: var(--primary-color);
}

.search-shortcut {
    font-size: 0.75rem;
    color: var(--text-muted-light);
}

.join-btn {
    padding: 0.5rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.join-btn:hover {
    background-color: var(--primary-hover);
}

.mobile-menu-btn {
    display: none;
    padding: 0.5rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-light);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: white;
    border-bottom: 1px solid var(--border-light);
    padding: 1rem;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-menu.show {
    display: flex;
}

.mobile-link {
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-light);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.mobile-link:hover {
    background-color: var(--surface-light);
}

.hero-section {
    padding: 8rem 1.5rem 4rem;
    background-color: var(--surface-light);
    text-align: center;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto 3rem;
}

.hero-badge {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted-light);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease-out;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted-light);
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-cta {
    display: inline-block;
    padding: 0.875rem 2rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-cta:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-carousel {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.carousel-slide:hover img {
    transform: scale(1.02);
}

.slide-caption {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    color: white;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    background-color: rgba(0, 0, 0, 0.3);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.75rem;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    opacity: 0;
}

.hero-carousel:hover .carousel-prev,
.hero-carousel:hover .carousel-next {
    opacity: 1;
}

.carousel-prev:hover,
.carousel-next:hover {
    background-color: white;
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: 1rem;
}

.carousel-next {
    right: 1rem;
}

.carousel-indicators {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
}

.carousel-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-indicator:hover,
.carousel-indicator.active {
    background-color: white;
    transform: scale(1.2);
}

.carousel-counter {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted-light);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.categories-section {
    padding: 4rem 1.5rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.category-card {
    padding: 1.5rem;
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-light);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-light);
    transform: translateY(-2px);
}

.category-icon {
    font-size: 1.5rem;
}

.category-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.category-desc {
    font-size: 0.875rem;
    color: var(--text-muted-light);
}

.category-count {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
}

.category-arrow {
    margin-top: auto;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
}

.stages-section {
    padding: 4rem 1.5rem;
    background-color: var(--surface-light);
}

.stages-badge {
    display: block;
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.stages-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.progress-step:hover {
    transform: scale(1.05);
}

.step-number {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--border-light);
    color: var(--text-muted-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.progress-step.active .step-number {
    background-color: var(--primary-color);
    color: white;
}

.step-label {
    font-size: 0.875rem;
    font-weight: 500;
}

.progress-line {
    width: 4rem;
    height: 2px;
    background-color: var(--border-light);
    transition: background-color var(--transition-fast);
}

.progress-step.active ~ .progress-line {
    background-color: var(--primary-color);
}

.stages-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stage-card {
    padding: 1.5rem;
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    overflow: hidden;
}

.stage-card.active {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.stage-card:hover {
    border-color: var(--primary-color);
}

.stage-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.stage-current {
    padding: 0.25rem 0.5rem;
    background-color: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.stage-number {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background-color: var(--border-light);
    color: var(--text-muted-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.stage-card.active .stage-number {
    background-color: var(--primary-color);
    color: white;
}

.stage-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.stage-time {
    font-size: 0.875rem;
    color: var(--text-muted-light);
    margin-left: auto;
}

.stage-desc {
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.stage-details {
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: var(--surface-light);
    border-radius: var(--radius-md);
}

body.dark .stage-details {
    background-color: rgba(30, 41, 59, 0.5);
}

.stage-subtitle {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.stage-list {
    list-style: none;
    padding-left: 0;
}

.stage-list li {
    padding: 0.5rem 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-light);
}

body.dark .stage-list li {
    border-bottom-color: var(--border-dark);
}

.stage-list li:last-child {
    border-bottom: none;
}

.campus-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.campus-card {
    padding: 1rem;
    background-color: white;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

body.dark .campus-card {
    background-color: var(--surface-dark);
    border-color: var(--border-dark);
}

.campus-card h5 {
    margin-bottom: 0.25rem;
}

.campus-card p {
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.campus-desc {
    color: var(--text-muted-light);
}

.stage-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.stage-btn {
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.stage-btn:hover {
    background-color: var(--primary-hover);
}

.stage-toggle {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: transparent;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted-light);
    transition: all var(--transition-fast);
}

.stage-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.stage-secondary {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
    display: none;
    animation: slideDown 0.3s ease-out;
}

body.dark .stage-secondary {
    border-top-color: var(--border-dark);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stage-secondary.show {
    display: block;
}

.secondary-title {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stage-secondary ul {
    list-style: none;
    padding-left: 0;
}

.stage-secondary li {
    padding: 0.5rem 0;
    font-size: 0.875rem;
    color: var(--text-muted-light);
}

.content-section {
    padding: 4rem 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.content-card {
    padding: 1.5rem;
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    transition: all var(--transition-fast);
}

.content-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-light);
}

.content-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.content-date {
    font-size: 0.875rem;
    color: var(--text-muted-light);
    margin-bottom: 1rem;
}

.content-body {
    font-size: 0.9375rem;
    line-height: 1.8;
}

.content-body h4 {
    margin: 1rem 0 0.5rem;
    font-size: 1rem;
}

.content-body ul,
.content-body ol {
    padding-left: 1.5rem;
    margin: 0.5rem 0;
}

.content-body li {
    margin-bottom: 0.25rem;
}

.content-tip {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 1rem;
    background-color: rgba(245, 158, 11, 0.1);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent-color);
}

.tip-icon {
    font-size: 1rem;
}

.tip-text {
    font-size: 0.875rem;
    color: var(--text-light);
}

.operator-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.operator-table th,
.operator-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.875rem;
}

.operator-table th {
    background-color: var(--surface-light);
    font-weight: 600;
}

body.dark .operator-table th {
    background-color: rgba(30, 41, 59, 0.5);
}

.operator-table tr:last-child td {
    border-bottom: none;
}

.faq-section {
    padding: 4rem 1.5rem;
    background-color: var(--surface-light);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.faq-item {
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-item.active {
    border-color: var(--primary-color);
}

.faq-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    width: 100%;
    text-align: left;
    transition: background-color var(--transition-fast);
}

.faq-header:hover {
    background-color: var(--surface-light);
}

.faq-number {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.faq-header .faq-title {
    flex: 1;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
}

.faq-arrow {
    font-size: 0.75rem;
    color: var(--text-muted-light);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-content {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-content {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
}

.faq-content p {
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
}

.faq-content ul,
.faq-content ol {
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.faq-content li {
    font-size: 0.9375rem;
    margin-bottom: 0.25rem;
}

.faq-content h4 {
    font-size: 1rem;
    margin: 0.75rem 0 0.5rem;
}

.resources-section {
    padding: 4rem 1.5rem;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.resource-card {
    padding: 1.5rem;
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.resource-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-light);
    transform: translateY(-2px);
}

.resource-icon {
    font-size: 2rem;
}

.resource-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.resource-desc {
    font-size: 0.875rem;
    color: var(--text-muted-light);
}

.resource-btn {
    margin-top: auto;
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color var(--transition-fast);
    align-self: flex-start;
}

.resource-btn:hover {
    background-color: var(--primary-hover);
}

.contact-section {
    padding: 4rem 1.5rem;
    background-color: var(--surface-light);
    text-align: center;
}

.contact-badge {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted-light);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.contact-actions {
    margin-top: 2rem;
}

.contact-btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.contact-btn.primary {
    background-color: var(--primary-color);
    color: white;
}

.contact-btn.primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.contact-btn.secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-light);
}

.contact-btn.secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.contact-alt {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted-light);
    flex-wrap: wrap;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.footer {
    padding: 4rem 1.5rem;
    background-color: var(--surface-light);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.brand-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-emoji {
    font-size: 1.5rem;
}

.brand-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.brand-role {
    font-size: 0.75rem;
    color: var(--text-muted-light);
}

.brand-desc {
    font-size: 0.875rem;
    color: var(--text-muted-light);
}

.brand-location {
    font-size: 0.875rem;
}

.footer-logo {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.logo-icon-large {
    width: 3rem;
    height: 3rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.logo-main {
    font-size: 1rem;
    font-weight: 600;
}

.logo-desc {
    font-size: 0.875rem;
    color: var(--text-muted-light);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.links-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.5rem;
}

.links-grid a {
    font-size: 0.875rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-cards {
    display: flex;
    gap: 1rem;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.qrcode-placeholder {
    width: 80px;
    height: 80px;
    background-color: var(--border-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    color: var(--text-muted-light);
    text-align: center;
    transition: background-color var(--transition-fast);
}

.contact-card:hover .qrcode-placeholder {
    background-color: var(--primary-color);
    color: white;
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 500;
}

.contact-name {
    font-size: 0.75rem;
    color: var(--text-muted-light);
}

.join-method {
    font-size: 0.75rem;
    color: var(--text-muted-light);
}

.footer-disclaimer {
    max-width: 1200px;
    margin: 0 auto 2rem;
    padding: 1rem;
    background-color: rgba(226, 232, 240, 0.5);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.disclaimer-icon {
    font-size: 1rem;
}

.disclaimer-text {
    font-size: 0.8125rem;
    color: var(--text-muted-light);
}

.footer-copyright {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8125rem;
    color: var(--text-muted-light);
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright-link {
    color: var(--text-light);
    text-decoration: none;
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 0.75rem 1rem;
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--surface-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.search-modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 500px;
    background-color: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.search-modal.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    width: 2rem;
    height: 2rem;
    border: none;
    background-color: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted-light);
    transition: color var(--transition-fast);
}

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

.search-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.search-box .search-icon {
    font-size: 1.25rem;
}

#searchInput {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

#searchInput:focus {
    border-color: var(--primary-color);
}

.search-box .search-shortcut {
    font-size: 0.75rem;
    color: var(--text-muted-light);
}

.search-results {
    max-height: 300px;
    overflow-y: auto;
}

.result-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.result-item:hover {
    background-color: var(--surface-light);
}

.result-category {
    padding: 0.25rem 0.5rem;
    background-color: var(--surface-light);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.result-title {
    font-size: 0.9375rem;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .join-btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .carousel-slide img {
        height: 250px;
    }
    
    .stages-progress {
        gap: 1rem;
    }
    
    .progress-line {
        width: 2rem;
    }
    
    .campus-info {
        grid-template-columns: 1fr;
    }
    
    .contact-cards {
        flex-direction: column;
    }
    
    .footer-copyright {
        flex-direction: column;
        text-align: center;
    }
    
    .faq-header {
        flex-wrap: wrap;
    }
    
    .faq-header .faq-title {
        order: 2;
        flex-basis: 100%;
        margin-top: 0.5rem;
    }
    
    .faq-arrow {
        order: 1;
    }
    
    .category-arrow {
        align-self: flex-start;
    }
}