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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.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;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #4776E6;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-link:hover {
    color: #4776E6;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4776E6, #8E54E9);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4776E6 0%, #8E54E9 50%, #6B73FF 100%);
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    color: white;
}

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: 50px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-icon {
    font-size: 14px;
}

.badge-text {
    font-size: 14px;
    font-weight: 500;
}

/* Hero Title */
.hero-title {
    margin-bottom: 24px;
    line-height: 1.1;
}

.title-main {
    display: block;
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(45deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-subtitle {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 480px;
}

/* Hero Actions */
.hero-actions {
    margin-bottom: 48px;
}

.primary-action {
    margin-bottom: 24px;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: white;
    color: #4776E6;
    padding: 20px 32px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    border: none;
}

.btn-download:hover {
    transform: translateY(-4px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.btn-icon {
    font-size: 24px;
}

.btn-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-main {
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

.btn-sub {
    font-size: 14px;
    opacity: 0.7;
    margin-top: 2px;
}

.secondary-actions {
    display: flex;
    gap: 24px;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: white;
    padding: 12px 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateX(4px);
}

.btn-text {
    font-size: 16px;
}

.btn-arrow {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.btn-outline:hover .btn-arrow {
    transform: translateX(4px);
}

/* Hero Highlights */
.hero-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 320px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.highlight-icon {
    font-size: 16px;
}

.highlight-text {
    font-size: 14px;
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    max-width: 400px;
    width: 100%;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.card-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red {
    background: #ff5f57;
}

.dot-yellow {
    background: #ffbd2e;
}

.dot-green {
    background: #28ca42;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: #333;
}

.feature-preview {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.preview-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px;
    background: #f8f9fa;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.preview-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.preview-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.preview-text {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    text-align: center;
}


/* 功能特色区域 */
.features {
    padding: 100px 0;
    background: #f8f9fa;
}

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

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

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, #4776E6, #8E54E9);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

.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;
}



/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.download-description {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.8;
}

.download-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 40px;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-check {
    color: #4ade80;
    font-weight: 700;
    font-size: 1.2rem;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

/* 下载信息样式 */
.download-info {
    margin-top: 30px;
}

.download-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-icon {
    font-size: 16px;
}

.stat-text {
    color: white;
    font-size: 14px;
    font-weight: 500;
}

/* 安装指南样式 */
.install-guide {
    display: flex;
    justify-content: center;
}

.guide-details {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 400px;
    width: 100%;
}

.guide-summary {
    padding: 16px 20px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: all 0.3s ease;
}

.guide-summary:hover {
    background: rgba(255, 255, 255, 0.05);
}

.guide-summary::-webkit-details-marker {
    display: none;
}

.guide-content {
    padding: 0 20px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.guide-content p {
    color: white;
    font-size: 14px;
    margin: 8px 0;
    opacity: 0.9;
    line-height: 1.5;
}

.guide-content p:first-child {
    margin-top: 16px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 15px 25px;
    border-radius: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    width: 250px;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon svg {
    width: 30px;
    height: 30px;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-label {
    font-size: 0.8rem;
    opacity: 0.8;
}

.btn-platform {
    font-size: 1.1rem;
    font-weight: 600;
}


/* 关于我们区域 */
.about {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.about-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
}

.about-description {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 40px;
}

.about-description p {
    margin-bottom: 20px;
}

.program-philosophy h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.program-philosophy p {
    font-size: 1rem;
    color: #666;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    gap: 25px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4776E6, #8E54E9);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
}

.stat-name {
    font-size: 0.9rem;
    color: #666;
    margin-top: 2px;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4776E6;
}

.footer-description {
    font-size: 1rem;
    opacity: 0.8;
    line-height: 1.6;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #4776E6;
}

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

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

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

.footer-links a:hover {
    color: #4776E6;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.7;
}

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

.social-link {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: #4776E6;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #4776E6, #8E54E9);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        backdrop-filter: blur(10px);
        padding: 20px 0;
        gap: 20px;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }

    .title-main {
        font-size: 3rem;
    }

    .hero-visual {
        order: -1;
    }

    .visual-card {
        max-width: 300px;
    }

    .secondary-actions {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    .hero-highlights {
        grid-template-columns: repeat(2, 1fr);
        max-width: 100%;
        justify-self: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }


    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .title-main {
        font-size: 2.5rem;
    }

    .secondary-actions {
        flex-direction: column;
        gap: 12px;
    }

    .hero-highlights {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .visual-card {
        padding: 24px;
        max-width: 280px;
    }

    .feature-preview {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section-title {
        font-size: 2rem;
    }

    .download-title {
        font-size: 2rem;
    }

    .about-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 15px;
    }

    .download-features {
        grid-template-columns: 1fr;
    }

    .download-stats {
        gap: 16px;
    }

    .stat-item {
        padding: 10px 14px;
    }

    .guide-details {
        max-width: 100%;
    }

}

/* 下载页面样式 */
.download-page {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.download-header {
    text-align: center;
    margin-bottom: 60px;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 1.2rem;
    color: white;
    opacity: 0.9;
}

.download-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.download-card {
    background: white;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

.card-header {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.app-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.app-icon {
    width: 80px;
    height: 80px;
    border-radius: 16px;
}

.app-name {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.app-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 16px;
}

.app-badges {
    display: flex;
    gap: 8px;
}

.badge {
    background: #4776E6;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.card-content {
    display: grid;
    gap: 40px;
}

.section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.version-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.version-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #f8f9fa;
    border-radius: 12px;
}

.label {
    font-weight: 600;
    color: #555;
}

.value {
    font-weight: 700;
    color: #333;
}

.download-action {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #4776E6, #8E54E9);
    border-radius: 20px;
}

.download-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: white;
    color: #4776E6;
    padding: 16px 32px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.download-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.download-note {
    color: white;
    margin-top: 12px;
    opacity: 0.9;
}

.changelog-list {
    list-style: none;
    padding: 0;
}

.changelog-list li {
    padding: 12px 16px;
    background: #f8f9fa;
    border-radius: 12px;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.permission-list {
    display: grid;
    gap: 16px;
}

.permission-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 12px;
}

.permission-icon {
    font-size: 24px;
}

.permission-info {
    display: flex;
    flex-direction: column;
}

.permission-name {
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
}

.permission-desc {
    font-size: 14px;
    color: #666;
}

.install-guide-card {
    background: white;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    height: fit-content;
}

.guide-steps {
    display: grid;
    gap: 24px;
}

.step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: #4776E6;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.step-desc {
    color: #666;
    line-height: 1.6;
}

/* 下载页面响应式 */
@media (max-width: 768px) {
    .download-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .download-card,
    .install-guide-card {
        padding: 24px;
    }

    .app-info {
        flex-direction: column;
        text-align: center;
    }

    .version-details {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .download-page {
        padding: 100px 0 60px;
    }

    .page-title {
        font-size: 2rem;
    }

    .download-card,
    .install-guide-card {
        padding: 20px;
    }

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

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}