:root {
    --primary-color: #FF6B8B; /* 主色：粉红色 */
    --secondary-color: #6B9DFF; /* 辅助色：天蓝色 */
    --neutral-color: #F8F9FA; /* 中性色：浅灰色 */
    --text-color: #333333; /* 文字颜色：深灰色 */
    --border-radius: 16px; /* 统一圆角 */
    --box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12); /* 统一阴影 */
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1); /* 统一过渡效果 */
}

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

body {
    font-family: 'Noto Sans', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #FFF5F7 0%, #F0F7FF 100%);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 导航栏样式 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    transition: var(--transition);
}

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

.logo img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    border-radius: 50%;
    object-fit: cover;
}

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

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

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    position: relative;
    transition: var(--transition);
    padding: 8px 0;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: var(--transition);
}

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

.nav-links a.active {
    color: var(--primary-color);
}

/* 卡密兑换链接特殊样式 */
.nav-links a[data-section="redeem"] {
    color: var(--secondary-color);
    font-weight: 700;
}

.nav-links a[data-section="redeem"]:hover {
    color: #5a8ae8;
}

.nav-links a[data-section="redeem"]::after {
    background: linear-gradient(to right, var(--secondary-color), #5a8ae8);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    transition: var(--transition);
}

.menu-toggle:hover span {
    background-color: var(--secondary-color);
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* 页面部分通用样式 */
.section {
    padding: 80px 0;
    display: none;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 40px;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* 首页样式 */
.hero {
    text-align: center;
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(255, 107, 139, 0.1) 0%, rgba(107, 157, 255, 0.1) 100%);
    border-radius: var(--border-radius);
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: moveBackground 20s linear infinite;
    z-index: 0;
}

@keyframes moveBackground {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 30px); }
}

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

.hero-logo {
    width: 180px;
    height: 180px;
    margin: 0 auto 40px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.hero-logo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

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

.hero-logo img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--primary-color);
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 22px;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.btn-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 18px;
    transition: var(--transition);
    box-shadow: 0 8px 20px rgba(255, 107, 139, 0.3);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    z-index: 1;
    letter-spacing: 1px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.btn:hover::before {
    opacity: 1;
}

.btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(255, 107, 139, 0.4);
}

.btn:active {
    transform: translateY(0) scale(1);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), #5a8ae8);
}

.btn-secondary:hover {
    box-shadow: 0 15px 30px rgba(107, 157, 255, 0.4);
}

/* 介绍页面样式 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 139, 0.1);
}

.feature-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.feature-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, rgba(255, 107, 139, 0.1), rgba(107, 157, 255, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 40px;
    color: var(--primary-color);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, rgba(255, 107, 139, 0.2), rgba(107, 157, 255, 0.2));
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
    font-size: 24px;
}

/* 发展页面样式 */
.goals {
    display: flex;
    justify-content: space-between;
    margin-bottom: 80px;
    flex-wrap: wrap;
    gap: 30px;
}

.goal-card {
    flex: 1;
    min-width: 280px;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.goal-card:hover {
    transform: translateY(-10px);
}

.goal-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    line-height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    margin-bottom: 20px;
    font-size: 28px;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(255, 107, 139, 0.3);
}

.app-preview {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 50px;
    box-shadow: var(--box-shadow);
    margin-bottom: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 139, 0.1);
}

.app-screenshots {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.screenshot {
    width: 220px;
    height: 440px;
    background-color: #f0f0f0;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    position: relative;
    transition: var(--transition);
}

.screenshot:hover {
    transform: translateY(-10px) scale(1.05);
}

.screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.screenshot:hover img {
    transform: scale(1.05);
}

.membership {
    margin-top: 40px;
}

.membership-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.membership-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--box-shadow);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 107, 139, 0.1);
}

.membership-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 移除推荐标签样式 */
.membership-card.featured {
    border: 2px solid var(--primary-color);
}

.membership-card.featured:hover {
    transform: translateY(-15px);
}

.membership-title {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.membership-price {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 25px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.membership-price span {
    font-size: 18px;
    font-weight: normal;
    color: #777;
}

.membership-features {
    list-style: none;
    margin-bottom: 40px;
    text-align: left;
}

.membership-features li {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    position: relative;
    padding-left: 30px;
}

.membership-features li:last-child {
    border-bottom: none;
}

.membership-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 常见问题页面样式 */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: white;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 107, 139, 0.1);
}

.faq-item:hover {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.faq-question {
    padding: 25px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    font-size: 18px;
}

.faq-question:hover {
    background-color: rgba(255, 107, 139, 0.05);
}

.faq-question::after {
    content: '+';
    font-size: 28px;
    color: var(--primary-color);
    transition: var(--transition);
    font-weight: normal;
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    padding: 0 25px 25px;
    max-height: 500px;
}

/* 下载页面样式 */
.download-container {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.download-option {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--box-shadow);
    width: 280px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(107, 157, 255, 0.1);
}

.download-option:hover {
    transform: translateY(-15px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.download-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, rgba(107, 157, 255, 0.1), rgba(255, 107, 139, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 50px;
    color: var(--secondary-color);
}

.download-option:hover .download-icon {
    transform: scale(1.1) rotate(10deg);
}

.download-links {
    margin-top: 30px;
}

.download-link {
    display: inline-block;
    margin: 10px;
    padding: 12px 25px;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    transition: var(--transition);
    font-weight: bold;
}

.download-link:hover {
    background-color: #5a8ae8;
    transform: translateY(-3px);
}

/* 卡密兑换页面样式 */
.redeem-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 50px;
    box-shadow: var(--box-shadow);
    border: 1px solid rgba(107, 157, 255, 0.1);
}

.redeem-intro {
    text-align: center;
}

.redeem-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, rgba(107, 157, 255, 0.1), rgba(255, 107, 139, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: var(--secondary-color);
}

.redeem-intro h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.redeem-description {
    font-size: 18px;
    margin-bottom: 40px;
    line-height: 1.8;
    color: #555;
}

.redeem-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.redeem-step {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 249, 250, 0.9));
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(107, 157, 255, 0.1);
}

.redeem-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    background: linear-gradient(135deg, var(--secondary-color), #5a8ae8);
    color: white;
    border-radius: 50%;
    margin-bottom: 15px;
    font-size: 24px;
    font-weight: bold;
}

.redeem-step h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.redeem-step p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.redeem-notice {
    background-color: rgba(255, 245, 247, 0.8);
    border-radius: var(--border-radius);
    padding: 25px;
    margin: 40px 0;
    text-align: left;
    border-left: 5px solid var(--primary-color);
}

.redeem-notice h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.redeem-notice ul {
    list-style: none;
    padding-left: 20px;
}

.redeem-notice li {
    padding: 8px 0;
    position: relative;
    padding-left: 30px;
}

.redeem-notice li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 20px;
}

.redeem-action {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px dashed #eee;
}

.action-description {
    font-size: 18px;
    margin-bottom: 30px;
    color: #555;
}

.redeem-go-btn {
    background: linear-gradient(135deg, var(--secondary-color), #5a8ae8);
    font-size: 20px;
    padding: 20px 50px;
    display: inline-flex;
    align-items: center;
    gap: 15px;
}

.redeem-go-btn:hover {
    box-shadow: 0 15px 30px rgba(107, 157, 255, 0.4);
}

/* 页脚样式 */
footer {
    background-color: white;
    padding: 60px 0 30px;
    margin-top: 80px;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-info {
    flex: 1;
    min-width: 300px;
}

.footer-info h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 24px;
}

.footer-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-info i {
    color: var(--primary-color);
    width: 20px;
}

.footer-qrcodes {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.qrcode {
    text-align: center;
    transition: var(--transition);
}

.qrcode:hover {
    transform: translateY(-10px);
}

.qrcode-img {
    width: 140px;
    height: 140px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid #eee;
    overflow: hidden;
    margin-bottom: 10px;
}

.qrcode-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qrcode p {
    margin-top: 5px;
    font-size: 16px;
    font-weight: bold;
    color: var(--text-color);
}

.copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
    font-size: 14px;
    color: #777;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .membership-card.featured {
        transform: none;
    }
    
    .membership-card.featured:hover {
        transform: translateY(-15px);
    }
    
    .redeem-container {
        padding: 30px;
    }
    
    .redeem-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        box-shadow: var(--box-shadow);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 99;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-links li {
        margin: 15px 0;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }
    
    .btn {
        padding: 16px 30px;
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }
    
    .section {
        padding: 60px 0;
    }

    .goals {
        flex-direction: column;
    }

    .app-screenshots {
        flex-direction: column;
        align-items: center;
    }
    
    .app-preview {
        padding: 30px 20px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .membership-price {
        font-size: 40px;
    }
    
    .footer-qrcodes {
        justify-content: center;
    }
    
    .redeem-steps {
        grid-template-columns: 1fr;
    }
    
    .redeem-icon {
        width: 100px;
        height: 100px;
        font-size: 50px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .hero-logo {
        width: 150px;
        height: 150px;
    }
    
    .hero-logo img {
        width: 120px;
        height: 120px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .membership-card {
        padding: 30px 20px;
    }
    
    .download-option {
        width: 100%;
        max-width: 280px;
    }
    
    .qrcode-img {
        width: 120px;
        height: 120px;
    }
    
    .redeem-container {
        padding: 20px;
    }
    
    .redeem-intro h3 {
        font-size: 24px;
    }
}

/* 动画效果 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0px);
    }
}

.floating {
    animation: float 4s ease-in-out infinite;
}

/* 装饰元素 */
.decoration {
    position: absolute;
    z-index: -1;
    opacity: 0.1;
}

.decoration-1 {
    top: 10%;
    left: 5%;
    width: 120px;
    height: 120px;
    background-color: var(--primary-color);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.decoration-2 {
    bottom: 10%;
    right: 5%;
    width: 180px;
    height: 180px;
    background-color: var(--secondary-color);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: float 8s ease-in-out infinite reverse;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--secondary-color), var(--primary-color));
}

/* 页面切换动画 */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.page-transition.active {
    transform: translateY(0);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 98;
}

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

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}

/* 新增：卡片点击脉冲动画 */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 107, 139, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(255, 107, 139, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 139, 0);
    }
}

.pulse-effect {
    animation: pulse 0.6s ease-out;
}

/* 新增：兑换跳转通知 */
.redeem-notification {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: linear-gradient(135deg, var(--secondary-color), #5a8ae8);
    color: white;
    padding: 15px 30px;
    border-radius: 50px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.redeem-notification.active {
    transform: translateX(-50%) translateY(0);
}

.redeem-notification i {
    font-size: 20px;
}