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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: relative;
}

.nav-logo .logo {
    height: 40px;
    width: auto;
    transition: transform 0.3s ease;
}

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

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #d32f2f;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #d32f2f;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-reservation {
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3);
}

.btn-reservation:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.4);
}

.language-selector {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    color: #666;
    font-size: 14px;
    transition: color 0.3s ease;
}

.language-selector:hover {
    color: #d32f2f;
}

.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #333;
}

/* 英雄区域样式 */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6), rgba(211, 47, 47, 0.3));
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    height: 100%;
}

.hero-text {
    color: white;
    z-index: 1;
}

.hero-title {
    margin-bottom: 20px;
}

.title-main {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #fff, #ffd700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-sub {
    display: block;
    font-size: 1.5rem;
    font-weight: 300;
    color: #ffd700;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.btn-primary,
.btn-secondary {
    padding: 16px 32px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    color: white;
    box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(211, 47, 47, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #d32f2f;
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #e60012;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-visual {
    position: relative;
    z-index: 1;
}

.hero-image-container {
    position: relative;
    width: 100%;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-item {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(211, 47, 47, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    animation: float 6s ease-in-out infinite;
    animation-delay: var(--delay);
}

.floating-item:nth-child(1) {
    top: 20%;
    left: 10%;
}

.floating-item:nth-child(2) {
    top: 60%;
    left: 80%;
}

.floating-item:nth-child(3) {
    top: 80%;
    left: 30%;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* 服务特色模块 */
.features {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f5f5, #fff);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(211, 47, 47, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(211, 47, 47, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 32px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.feature-description {
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        padding: 20px 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu .nav-link {
        padding: 15px 20px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        text-align: center;
        font-size: 16px;
    }
    
    .nav-menu .nav-link:last-child {
        border-bottom: none;
    }
    
    .nav-actions {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        padding: 20px;
        z-index: 999;
    }
    
    .nav-actions.active {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .mobile-menu-toggle.active {
        color: #e74c3c;
    }
    
    /* 移动端菜单动画 */
    .nav-menu {
        transform: translateY(-10px);
        opacity: 0;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-actions {
        transform: translateY(-10px);
        opacity: 0;
        transition: all 0.3s ease;
    }
    
    .nav-actions.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .title-main {
        font-size: 2.5rem;
    }
    
    .title-sub {
        font-size: 1.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-menu {
        padding: 15px 0;
    }
    
    .nav-menu .nav-link {
        padding: 12px 15px;
        font-size: 15px;
    }
    
    .nav-actions {
        padding: 15px;
    }
    
    .mobile-menu-toggle {
        font-size: 20px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .title-main {
        font-size: 2rem;
    }
    
    .hero-actions {
        gap: 15px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 14px 28px;
        font-size: 14px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
}

/* 滚动时的导航栏效果 */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text,
.hero-visual {
    animation: fadeInUp 1s ease-out;
}

.hero-visual {
    animation-delay: 0.3s;
}

/* 门店卡片样式 */
.store-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-radius: 15px 15px 0 0;
    margin-bottom: 20px;
}

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

.feature-card:hover .store-img {
    transform: scale(1.05);
}

.store-info {
    text-align: left;
    padding: 0 10px;
}

.store-location {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 8px;
    font-weight: 500;
}

.store-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    line-height: 1.3;
}

.store-contact {
    margin-bottom: 15px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: #555;
    line-height: 1.4;
}

.contact-item i {
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-item span {
    word-break: break-word;
}

.btn-join-waitlist {
    width: 100%;
    background: white;
    color: #e74c3c;
    border: 2px solid #e74c3c;
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-join-waitlist:hover {
    background: #e74c3c;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.store-buttons {
    display: flex;
    flex-direction: row;
    gap: 8px;
    padding: 0 10px 20px;
}

.btn-join-waitlist,
.btn-make-reservation {
    flex: 1;
    background: white;
    color: #e74c3c;
    border: 2px solid #e74c3c;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-make-reservation {
    background: #e74c3c;
    color: white;
    border: 2px solid #e74c3c;
}

.btn-make-reservation:hover {
    background: #c0392b;
    border-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

/* 修改feature-card样式以适应门店布局 */
.feature-card {
    background: white;
    padding: 0;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(211, 47, 47, 0.1);
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(211, 47, 47, 0.15);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .store-image {
        height: 180px;
    }
    
    .store-name {
        font-size: 1.2rem;
    }
    
    .contact-item {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .store-image {
        height: 160px;
    }
    
    .store-info {
        padding: 0 15px 15px;
    }
    
    .btn-join-waitlist,
    .btn-make-reservation {
        padding: 6px 10px;
        font-size: 11px;
    }
    
    .store-buttons {
        gap: 6px;
        padding: 0 15px 15px;
    }
}

/* 关于我们模块样式 */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
}

.about-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: start;
}

.about-text {
    padding-right: 40px;
}

.about-subtitle {
    font-size: 1.8rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 25px;
    position: relative;
}

.about-subtitle::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    border-radius: 2px;
}

.about-description {
    font-size: 1.1rem;
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: #1d1c1a;
    margin-top: 5px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 80px;
}

.feature-item {
    background: white;
    padding: 35px 25px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(211, 47, 47, 0.1);
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(211, 47, 47, 0.15);
}

.feature-item .feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 28px;
}

.feature-item .feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.feature-item .feature-desc {
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
}

.about-timeline {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.timeline-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: #333;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.timeline-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    border-radius: 2px;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1.1rem;
    min-width: 100px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.timeline-year::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 3px;
    background: linear-gradient(135deg, #d32f2f, #b71c1c);
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-year::after {
    right: -20px;
}

.timeline-item:nth-child(even) .timeline-year::after {
    left: -20px;
}

.timeline-content {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    margin: 0 30px;
    flex: 1;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.timeline-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.timeline-content p {
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-text {
        padding-right: 0;
    }
    
    .about-stats {
        flex-direction: row;
        gap: 15px;
    }
    
    .stat-card {
        flex: 1;
        padding: 20px;
    }
    
    .about-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: row !important;
    }
    
    .timeline-year {
        min-width: 80px;
        font-size: 1rem;
        padding: 10px 15px;
    }
    
    .timeline-year::after {
        right: -20px !important;
        left: auto !important;
    }
    
    .timeline-content {
        margin-left: 50px;
        margin-right: 0;
    }
}

@media (max-width: 480px) {
    .about {
        padding: 60px 0;
    }
    
    .about-stats {
        flex-direction: column;
    }
    
    .stat-card {
        padding: 15px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-item {
        padding: 25px 20px;
    }
    
    .about-timeline {
        padding: 30px 20px;
    }
    
    .timeline-content {
        padding: 20px;
        margin-left: 40px;
    }
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    color: #fff;
    padding: 60px 0 20px;
    margin-top: 80px;
}

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

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo-img {
    height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-description {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #e74c3c;
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-contact p,
.footer-hours p {
    color: #ccc;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: #e74c3c;
    width: 16px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #e74c3c;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright p {
    color: #999;
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #999;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #e74c3c;
}

/* 响应式页脚 */
@media (max-width: 768px) {
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 30px 0 15px;
    }
    
    .footer-content {
        gap: 25px;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: 10px;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
}