/* ========== Base Styles ========== */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #6366f1;
    --secondary: #FF6B6B;
    --dark: #1e293b;
    --success-color: #27ae60;
    --btn-color: #3498db;
    /* --dark-gray: #64748b; */
    --dark-gray: #4A5568;
    --medium-gray: #94a3b8;
    --light-gray: #e2e8f0;
    --lighter-gray: #f1f5f9;
    --white: #ffffff;
    --black: #000000;
    --overlay: rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius-sm: 0.125rem;
    --radius: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Montserrat', sans-serif;
    color: var(--dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    line-height: 1.2;
  }
  
  a {
    text-decoration: none;
    color: inherit;
  }
  
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  ul {
    list-style: none;
  }
  
  button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
  }
  
  .container {
    width: 100%;
    max-width: 1130px;
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  
  .section {
    padding: 6rem 0;
  }
  
  .section-header {
    margin-bottom: 3rem;
  }
  
  .section-header.center {
    text-align: center;
  }
  
  .section-pre-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: 0.75rem;
    display: inline-block;
  }
  
  .section-title {
    font-size: 2.25rem;
    margin-bottom: 1rem;
  }
  
  .section-subtitle {
    font-size: 1.125rem;
    color: var(--dark-gray);
    max-width: 100%;
  }
  
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    transition: all 0.3s ease;
  }
  
  .btn-primary {
    background-color: var(--primary);
    color: var(--white);
  }
  
  .btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  
  .btn-secondary {
    background-color: transparent;
    color: var(--secondary);
    border: 1px solid var(--primary);
  }
  
  .btn-secondary:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  
  .btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
  }
  
  .btn-block {
    display: flex;
    width: 100%;
  }
  
  /* ========== Loader ========== */
  .loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
  }
  
  .loader-circle {
    width: 50px;
    height: 50px;
    border: 5px solid var(--light-gray);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
  }
  
  .loader-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark);
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  
  .loader.hidden {
    opacity: 0;
    visibility: hidden;
  }
  
  /* ========== Header ========== */
  .glass-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 100;
    transition: all 0.3s ease;
  }
  
  .glass-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
  }
  
  .header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
  }
  
  .logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
  }
  
  .logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: var(--radius);
    margin-right: 0.5rem;
    font-family: 'Playfair Display', serif;
  }
  

.headercontainer {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    justify-content: space-between; /* 确保容器两端对齐 */
}

.main-nav {
    display: flex;
    justify-content: flex-end; /* 主导航容器右对齐 */
    flex-grow: 1; /* 允许导航占据剩余空间 */
}

.main-nav ul {
    display: flex;
    gap: 2rem;
    /* 移除原有的justify-content: flex-end */
    margin-left: auto; /* 通过自动边距实现右对齐 */
}


  .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
  }
  
  .nav-link:hover {
    color: var(--primary);
  }
  
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
  }
  
  .nav-link:hover::after {
    width: 100%;
  }
  
  .nav-cta {
    background-color: var(--primary);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    transition: all 0.3s ease;
  }
  
  .nav-cta:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
  
  .mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    cursor: pointer;
  }
  
  .mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--dark);
    border-radius: 3px;
    transition: all 0.3s ease;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
  }
  
  /* ========== Floating Navigation ========== */
  .floating-nav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 99;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 0.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
  }
  
  .nav-tooltip {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--dark);
    transition: all 0.3s ease;
  }
  
  .nav-tooltip:hover {
    background-color: var(--primary);
    color: var(--white);
  }
  
  .nav-tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--dark);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    margin-right: 1rem;
  }
  
  .nav-tooltip:hover::before {
    opacity: 1;
    visibility: visible;
    margin-right: 0.5rem;
  }
  
  /* ========== Hero Section ========== */
  .hero-section {
    position: relative;
    height: 100dvh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
  }
  
  .parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/ripples.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
    transform: translateZ(0);
  }
  
  .hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    text-align: center;
    padding-top: 80px;
  }
  
  .hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
  }
  
  .title-line {
    display: block;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
  }
  
  .hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
  }
  
  .scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .scroll-indicator span {
    display: block;
    width: 3px;
    height: 15px;
    background-color: var(--white);
    border-radius: var(--radius-full);
    margin-bottom: 5px;
    animation: bounce 2s infinite;
  }
  
  .scroll-indicator span:nth-child(2) {
    animation-delay: 0.2s;
  }
  
  .scroll-indicator span:nth-child(3) {
    animation-delay: 0.4s;
  }
  
  @keyframes bounce {
    0%, 100% {
      transform: translateY(0);
      opacity: 1;
    }
    50% {
      transform: translateY(10px);
      opacity: 0.5;
    }
  }
  
  /* ========== Brand Section ========== */
  .brand-section {
    padding: 3rem 0;
    background-color: var(--lighter-gray);
  }
  
  .brand-logos {
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
  }
  
  .brand-logo {
    opacity: 0.6;
    transition: opacity 0.3s ease;
  }
  
  .brand-logo:hover {
    opacity: 1;
  }
  
  .brand-logo img {
    height: 40px;
    width: auto;
    object-fit: contain;
  }
  
  /* ========== Products Section ========== */
  .products-section {
    background-color: var(--white);
    padding: 6rem 0;
  }
  
  .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
  }
  
  .product-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
  }
  
  .product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
  }
  
  .product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: var(--primary);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
  }
  
  .product-media {
    position: relative;
    overflow: hidden;
  }
  
  .product-media img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  
  .product-card:hover .product-media img {
    transform: scale(1.05);
  }
  
  .product-actions {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
  }
  
  .product-card:hover .product-actions {
    opacity: 1;
    transform: translateY(0);
  }
  
  .action-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--white);
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
  }
  
  .action-btn:hover {
    background-color: var(--primary);
    color: var(--white);
  }
  
  .product-content {
    padding: 1.5rem;
  }
  
  .product-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
    color: #f59e0b;
  }
  
  .product-rating span {
    color: var(--dark-gray);
    font-size: 0.875rem;
    margin-left: 0.5rem;
  }
  
  .product-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
  }
  
  .product-description {
    color: var(--dark-gray);
    font-size: 0.875rem;
    margin-bottom: 1rem;
  }
  
  .product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
  }
  
  .btn-add-to-cart {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s ease;
  }
  
  .btn-add-to-cart:hover {
    background-color: var(--primary-dark);
  }
  
  .section-footer {
    margin-top: 3rem;
    text-align: center;
  }
  
  .btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    transition: all 0.3s ease;
  }
  
  .btn-view-all:hover {
    gap: 1rem;
  }
  
  /* ========== Features Section ========== */
  .features-section {
    background-color: var(--lighter-gray);
    padding: 6rem 0;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
  }
  
  .feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
  }
  
  .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
  }
  
  .feature-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
  }
  
  .feature-card:hover .feature-icon {
    background-color: var(--primary);
    color: var(--white);
  }
  
  .feature-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
  }
  
  .feature-description {
    color: var(--dark-gray);
    font-size: 0.9375rem;
  }
  
  .feature-footer {
    margin-top: 0.5rem;
    color: var(--black);
    font-size: 0.9375rem;
  }

  /* ========== Gallery Section ========== */
  .gallery-section {
    padding: 6rem 0 3rem;
  }
  
  .gallery-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(200px, auto);
    gap: 1rem;
    margin-top: 3rem;
  }
  
  .gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
  }
  
  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  
  .gallery-item:hover img {
    transform: scale(1.05);
  }
  
  .gallery-item.tall {
    grid-row: span 2;
  }
  
  .gallery-item.wide {
    grid-column: span 2;
  }
  
  .gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  .gallery-item:hover .gallery-overlay {
    opacity: 1;
  }
  
  .gallery-expand {
    width: 50px;
    height: 50px;
    background-color: var(--white);
    color: var(--dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all 0.3s ease;
  }
  
  .gallery-expand:hover {
    background-color: var(--primary);
    color: var(--white);
  }
  
  /* ========== Testimonials Section ========== */
  .testimonials-section {
    background-color: var(--white);
    padding: 6rem 0;
  }
  
  .testimonials-slider {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding: 1rem 0;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  
  .testimonials-slider::-webkit-scrollbar {
    display: none;
  }
  
  .testimonial-card {
    min-width: 350px;
    background-color: var(--lighter-gray);
    padding: 2rem;
    border-radius: var(--radius-lg);
    scroll-snap-align: start;
  }
  
  .testimonial-rating {
    color: #f59e0b;
    margin-bottom: 1rem;
  }
  
  .testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--dark);
  }
  
  .testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
  }
  
  .author-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
  }
  
  .author-info p {
    font-size: 0.875rem;
    color: var(--dark-gray);
  }
  
  /* ========== CTA Section ========== */
  .cta-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
  }
  
  .cta-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
  }
  
  .cta-subtitle {
    font-size: 1.25rem;
    max-width: 100%;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
  }
  
  .cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
  }
  
  /* ========== Contact Section ========== */
  .contact-section {
    background-color: var(--lighter-gray);
    padding: 6rem 0;
  }
  
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .contact-info {
    padding-right: 2rem;
  }
  
  .info-items {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  .info-items .info-item {
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
  }
  
  .info-items .info-item:hover {
    transform: translateY(-3px);
  }

  .info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  
  .info-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
  }
  
  .info-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
  }
  
  .info-content p {
    color: var(--dark-gray);
  }
  
  .contact-social {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
  }
  
  .contact-social a {
    width: 40px;
    height: 40px;
    background-color: var(--white);
    color: var(--dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
  }
  
  .contact-social a:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
  }
  
  .contact-form-wrapper {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
  }
  
  .contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .form-group label {
    font-weight: 600;
    font-size: 0.9375rem;
  }
  
  .form-group input,
  .form-group textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
  }
  
  .form-group input:focus,
  .form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  }
  
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  
  /* ========== Footer ========== */
  .footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 6rem 0 0;
  }
  
  .footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
  }
  
  .footer-col {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
  }
  
  .footer-about {
    color: var(--medium-gray);
    font-size: 0.9375rem;
    line-height: 1.7;
  }
  
  .footer-title {
    font-size: 1.125rem;
    margin-bottom: 1rem;
  }
  
  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .footer-links a {
    color: var(--medium-gray);
    transition: color 0.3s ease;
  }
  
  .footer-links a:hover {
    color: var(--white);
  }
  
  .subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .subscribe-form .form-group {
    position: relative;
  }
  
  .subscribe-form input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    color: var(--white);
  }
  
  .subscribe-form input::placeholder {
    color: var(--medium-gray);
  }
  
  .subscribe-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
  }
  
  .subscribe-btn:hover {
    background-color: var(--primary-dark);
  }
  
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
  }
  
  .footer-copyright {
    color: var(--medium-gray);
    font-size: 0.875rem;
    text-align: center;
  }
  
  .footer-legal {
    display: flex;
    gap: 1.5rem;
  }
  
  .footer-legal a {
    color: var(--medium-gray);
    font-size: 0.875rem;
    transition: color 0.3s ease;
  }
  
  .footer-legal a:hover {
    color: var(--white);
  }
  
  /* ========== Back to Top Button ========== */
  .back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
  }
  
  .back-to-top.visible {
    opacity: 1;
    visibility: visible;
  }
  
  .back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
  }
  
  /* ========== Install Prompt ========== */
  .install-prompt {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 350px;
    transform: translateY(20px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
  }
  
  .install-prompt.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .install-content {
    margin-bottom: 1rem;
  }
  
  .install-buttons {
    display: flex;
    gap: 0.75rem;
  }
  
  .btn-install {
    background-color: var(--primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    transition: all 0.3s ease;
  }
  
  .btn-install:hover {
    background-color: var(--primary-dark);
  }
  
  .btn-cancel {
    background-color: transparent;
    color: var(--dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    transition: all 0.3s ease;
  }
  
  .btn-cancel:hover {
    background-color: var(--light-gray);
  }
  
  /* ========== Responsive Styles ========== */
  @media (max-width: 1024px) {
    body {
      width: 100%;
    }
    
    .hero-title {
      font-size: 3.5rem;
    }
    
    .contact-grid {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
    
    .contact-info {
      padding-right: 0;
    }
  }
  
  @media (max-width: 768px) {
    body {
      width: 100%;
    }

    .section {
      padding: 4rem 0;
    }
    
    .section-title {
      font-size: 2rem;
    }
    
    .mobile-menu-toggle {
      display: flex;
    }
    
    .main-nav ul {
      position: fixed;
      top: 80px;
      left: -100%;
      width: 80%;
      height: calc(100dvh - 80px);
      background: rgba(241, 245, 249, 0.9);
      backdrop-filter: blur(10px);
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      padding-top: 3rem;
      gap: 2rem;
      transition: left 0.3s ease;
    }
    
    .main-nav ul.active {
      left: 0;
    }
    
    .nav-link::after {
      display: none;
    }
    
    .hero-title {
      font-size: 2.5rem;
    }
    
    .hero-subtitle {
      font-size: 1.125rem;
    }
    
    .hero-buttons {
      flex-direction: column;
      align-items: center;
    }
    
    .floating-nav {
      display: none;
    }
    
    .form-row {
      grid-template-columns: 1fr;
    }
    
    .footer-content {
      grid-template-columns: 1fr 1fr;
    }
  }
  
  @media (max-width: 480px) {
    body {
      width: 100%;
    }

    .section-title {
      font-size: 1.75rem;
    }
    
    .hero-title {
      font-size: 2rem;
    }
    
    .products-grid {
      grid-template-columns: 1fr;
    }
    
    .testimonial-card {
      min-width: 280px;
    }
    
    .footer-content {
      grid-template-columns: 1fr;
    }
    
    .footer-bottom {
      flex-direction: column;
      gap: 1rem;
    }
    
    .footer-legal {
      flex-direction: column;
      gap: 0.5rem;
      align-items: center;
    }
  }

  .icp {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem; 
  }

.qrcodeContainer{
  width: 100%;
  text-align: center;
}

#qrcode{
    justify-content: center;
}

.weixinImg{
  width: 100%;
  height: 100%;
}

.info-btn {
  background: linear-gradient(to right, var(--btn-color), var(--btn-color));
  color: white;
  border: none;
  padding: 14px 20px;
  border-radius: 5px;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: all 0.3s;
  margin-top: 15px;
}

.info-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}


.regBtn-btn {
  background: linear-gradient(to right, var(--success-color), var(--success-color));
  color: white;
  border: none;
  padding: 14px 20px;
  border-radius: 5px;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: all 0.3s;
  margin-top: 15px;
}

.regBtn-btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}