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

:root {
    --primary: #FF6B35;
    --secondary: #F7931E;
    --accent: #00B4D8;
    --dark: #1A1A2E;
    --darker: #16213E;
    --gold: #FFD700;
    --ocean: #0077BE;
    --sand: #F4A460;
    --white: #FFFFFF;
    --light-bg: #FFF8F0;
    --text-dark: #2D2D2D;
    --text-light: #666666;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --gradient-main: linear-gradient(135deg, #FF6B35 0%, #F7931E 50%, #FFD700 100%);
    --gradient-ocean: linear-gradient(135deg, #0077BE 0%, #00B4D8 100%);
    --gradient-desert: linear-gradient(135deg, #F4A460 0%, #DAA520 100%);
}

body {
    font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

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

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

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

.nav-links a:hover {
    color: var(--secondary);
}

/* 返回主页按钮 */
.nav-links a.home-btn {
    background: var(--gradient-main);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    color: var(--white);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
    transition: all 0.3s ease;
}

.nav-links a.home-btn::after {
    display: none;
}

.nav-links a.home-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
    color: var(--white);
}

/* 语言切换按钮 */
.lang-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.lang-btn:hover {
    background: var(--white);
    color: var(--dark);
    transform: scale(1.05);
}

/* 英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-ocean);
    background-size: cover;
    background-position: center;
    text-align: center;
    color: var(--white);
    padding: 2rem;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(247, 147, 30, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 180, 216, 0.3) 0%, transparent 50%);
    z-index: 1;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
    max-width: 900px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4);
    letter-spacing: 2px;
    background: linear-gradient(to right, #FFD700, #FFA500, #FFD700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-weight: 300;
    letter-spacing: 1px;
}

.hero-dates {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.badge-highlight {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.badge-highlight:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--gold);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3.5rem;
    background: var(--gradient-main);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.6);
}

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

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-weight: 800;
    position: relative;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.section-subtitle.white {
    color: rgba(255, 255, 255, 0.9);
}

/* 亮点区域 */
.highlights {
    background: var(--light-bg);
}

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

.highlight-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.highlight-card.featured-card {
    background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 100%);
    border: 2px solid var(--secondary);
}

.highlight-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.highlight-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    animation: bounce 2s infinite;
}

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

.highlight-card h3 {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 700;
}

.highlight-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.highlight-overlay {
    background: rgba(0, 0, 0, 0.4);
    padding: 2.5rem;
    border-radius: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: all 0.3s ease;
}

.highlight-overlay h3,
.highlight-overlay p {
    color: var(--white);
}

.highlight-card:hover .highlight-overlay {
    background: rgba(0, 0, 0, 0.6);
}

.price-tag {
    display: inline-block;
    background: var(--gradient-main);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: bold;
    font-size: 0.95rem;
    margin-top: 1rem;
}

/* 视频展示区 */
.video-section {
    background: var(--white);
    padding: 6rem 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.video-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.video-card video {
    width: 100%;
    height: auto;
    display: block;
    background: #000;
}

.video-card h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    color: var(--dark);
    font-size: 1.3rem;
}

.video-card p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
}

/* 照片画廊 */
.gallery {
    background: var(--light-bg);
    padding: 6rem 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

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

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.gallery-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 行程时间线 */
.itinerary {
    background: var(--white);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 3rem auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-main);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    padding-left: 120px;
    opacity: 0;
    animation: fadeInLeft 0.6s ease forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }
.timeline-item:nth-child(6) { animation-delay: 0.6s; }
.timeline-item:nth-child(7) { animation-delay: 0.7s; }

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.timeline-marker {
    position: absolute;
    left: 0;
    width: 80px;
    height: 80px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(255, 107, 53, 0.4);
    z-index: 1;
}

.day-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--white);
}

.timeline-content {
    background: var(--light-bg);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-left: 5px solid transparent;
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    border-left-color: var(--primary);
    transform: translateX(10px);
}

.day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.day-header h3 {
    color: var(--dark);
    font-size: 1.6rem;
    font-weight: 700;
}

.location-tag {
    background: var(--gradient-ocean);
    color: var(--white);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.day-image {
    margin-bottom: 1.5rem;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.day-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.timeline-content:hover .day-image img {
    transform: scale(1.05);
}

.day-description {
    margin-bottom: 1.5rem;
}

.intro {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 500;
}

.highlight-text {
    background: linear-gradient(120deg, #FFE8CC 0%, #FFD700 100%);
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    border-left: 4px solid var(--secondary);
    font-weight: 600;
}

.day-description ul {
    list-style: none;
    margin-top: 1rem;
}

.day-description li {
    padding: 0.6rem 0;
    padding-left: 1.8rem;
    position: relative;
    color: var(--text-dark);
    line-height: 1.8;
}

.day-description li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.2rem;
}

.day-description strong {
    color: var(--primary);
    font-weight: 700;
}

.day-footer {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.tag {
    display: inline-block;
    background: var(--white);
    color: var(--text-dark);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 2px solid #E8E8E8;
}

.tag.activity {
    background: var(--gradient-main);
    color: var(--white);
    border: none;
}

.tag.special {
    background: var(--gradient-ocean);
    color: var(--white);
    border: none;
}


/* 联系区域 */
.contact {
    background: var(--light-bg);
}

.contact-content {
    margin-top: 3rem;
}

/* 价格展示框 */
.price-announcement {
    margin-bottom: 3rem;
    display: flex;
    justify-content: center;
}

.price-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 3rem;
    border-radius: 25px;
    box-shadow: 0 15px 50px rgba(255, 107, 53, 0.3);
    text-align: center;
    max-width: 600px;
    width: 100%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 15px 50px rgba(255, 107, 53, 0.3);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 20px 60px rgba(255, 107, 53, 0.4);
    }
}

.price-box h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.price-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.price-amounts {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.price-amount {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0.3rem;
}

.price-amount .currency {
    font-size: 2rem;
    margin-top: 0.5rem;
    font-weight: 700;
}

.price-amount .number {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1;
}

.price-amount .per {
    font-size: 1.5rem;
    margin-top: 1.5rem;
}

.price-amount.secondary-price {
    opacity: 0.9;
}

.price-amount.secondary-price .currency,
.price-amount.secondary-price .number {
    color: #FFE8CC;
}

.price-or {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 1rem;
    opacity: 0.8;
}

.price-details {
    text-align: left;
}

.price-details p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.exchange-rate {
    font-size: 0.95rem !important;
    opacity: 0.85;
    font-weight: 500 !important;
    margin-top: 1rem !important;
}

.exchange-note {
    font-size: 0.85rem !important;
    opacity: 0.8;
    font-weight: 400 !important;
    font-style: italic;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.info-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.icon-large {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.info-card h3 {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 700;
}

.contact-detail {
    color: var(--primary);
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.contact-detail.secondary {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-top: 0.3rem;
}

.contact-note {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 3rem;
    border-radius: 25px;
    box-shadow: var(--shadow-lg);
    grid-column: 1 / -1;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.contact-form h3 {
    color: var(--dark);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.form-desc {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 1.2rem;
    margin-bottom: 1.2rem;
    border: 2px solid #E8E8E8;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #FAFAFA;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.submit-btn {
    width: 100%;
    padding: 1.3rem;
    background: var(--gradient-main);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.5);
}

.form-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* 页脚 */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    opacity: 0.8;
    font-size: 1rem;
}

.footer-social p {
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.social-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--secondary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* 二维码弹窗 */
.qr-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.qr-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.qr-modal-content {
    background: var(--white);
    padding: 3rem;
    border-radius: 25px;
    text-align: center;
    position: relative;
    max-width: 500px;
    width: 90%;
    animation: slideUp 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

.qr-close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
}

.qr-close:hover {
    color: var(--primary);
    transform: rotate(90deg);
}

.qr-modal-content h3 {
    color: var(--dark);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.qr-modal-content img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
}

.qr-hint {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin: 0.5rem 0;
    opacity: 0.8;
}

.disclaimer {
    font-size: 0.85rem;
    opacity: 0.6;
    font-style: italic;
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.8rem;
    }

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

    .hero-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

    .section-title {
        font-size: 2.2rem;
    }

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

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        padding-left: 100px;
    }

    .timeline-marker {
        width: 60px;
        height: 60px;
    }

    .day-number {
        font-size: 1.5rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }

    .cta-button {
        padding: 1rem 2.5rem;
        font-size: 1.1rem;
    }

    .timeline-item {
        padding-left: 80px;
    }

    .timeline-marker {
        width: 50px;
        height: 50px;
    }

    .day-number {
        font-size: 1.2rem;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 加载动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}