/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #7c3aed;
    --primary-dark: #6d28d9;
    --primary-light: #a78bfa;
    --primary-lighter: #c4b5fd;
    --primary-lightest: #ede9fe;
    --secondary-color: #1f2937;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --bg-gray: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 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);
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(124, 58, 237, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    border-color: white;
}

.btn-full {
    width: 100%;
}

/* 区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-lightest);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-desc {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-text h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.logo-text p {
    font-size: 10px;
    color: var(--text-lighter);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav ul {
    display: flex;
    gap: 8px;
}

.nav a {
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-color);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(124, 58, 237, 0.1), transparent);
    transition: left 0.5s ease;
}

.nav a:hover::before {
    left: 100%;
}

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* 横幅区域 */
.hero {
    position: relative;
    padding: 160px 0 100px;
    background: linear-gradient(135deg, rgba(76, 29, 149, 0.95) 0%, rgba(124, 58, 237, 0.95) 50%, rgba(109, 40, 217, 0.95) 100%), url('../images/hero-bg.svg') center/cover no-repeat;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
}

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

.hero-text {
    color: white;
}

.hero-badge {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-text h2 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-text h2 span {
    background: linear-gradient(to right, #a78bfa, #c4b5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.8;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.floating-card:hover {
    transform: scale(1.05);
}

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

.card-1 {
    width: 280px;
    height: 200px;
    top: 0;
    right: 0;
    animation: float1 6s ease-in-out infinite;
}

.card-2 {
    width: 220px;
    height: 160px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    animation: float2 6s ease-in-out infinite;
}

.card-3 {
    width: 260px;
    height: 180px;
    bottom: 0;
    right: 20%;
    animation: float3 6s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(-50%); }
    50% { transform: translateY(calc(-50% + 20px)); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: white;
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: white;
    bottom: -50px;
    left: -50px;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: white;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 数据统计 */
.stats-bar {
    padding: 60px 0;
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.98) 0%, rgba(55, 65, 81, 0.98) 100%), url('../images/stats-bg.svg') center/cover no-repeat;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.stat-item {
    text-align: center;
    color: white;
    transition: var(--transition);
    padding: 20px;
    border-radius: var(--radius);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-light);
    line-height: 1;
    display: inline;
    transition: var(--transition);
}

.stat-item:hover .stat-number {
    color: white;
    text-shadow: 0 0 20px rgba(167, 139, 250, 0.5);
}

.stat-suffix {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-light);
    transition: var(--transition);
}

.stat-item:hover .stat-suffix {
    color: white;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: #9ca3af;
    margin-top: 8px;
    transition: var(--transition);
}

.stat-item:hover .stat-label {
    color: white;
}

/* 产品区域 */
.products {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99) 0%, rgba(249, 250, 251, 0.99) 100%);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
    z-index: 1;
}

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

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-lighter);
}

.product-img {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-img img {
    transform: scale(1.1);
}

.product-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.1) 100%);
    pointer-events: none;
}

.product-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 500;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.product-info p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 14px;
    position: relative;
    padding-bottom: 4px;
}

.product-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.product-link span {
    transition: transform 0.3s ease;
}

.product-link:hover span {
    transform: translateX(5px);
}

/* 优势介绍 */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(249, 250, 251, 0.98) 0%, rgba(255, 255, 255, 0.98) 100%), url('../images/features-bg.svg') center/cover no-repeat;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-lighter);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-lightest) 0%, var(--primary-lighter) 100%);
    border-radius: 50%;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
}

.feature-icon svg {
    width: 48px;
    height: 48px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-color);
    transition: var(--transition);
}

.feature-card:hover h3 {
    color: var(--primary-color);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    transition: var(--transition);
}

.feature-card:hover p {
    color: var(--text-color);
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99) 0%, rgba(249, 250, 251, 0.99) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.about-img-main:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.about-img-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.about-img-main:hover img {
    transform: scale(1.05);
}

.about-img-small {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 150px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid white;
    transition: var(--transition);
}

.about-img-small:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

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

.about-text .section-badge {
    display: inline-block;
    margin-bottom: 16px;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.about-desc {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.about-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.about-feature:hover {
    background: var(--bg-light);
    transform: translateX(10px);
}

.about-feature-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    margin-top: 2px;
    transition: var(--transition);
}

.about-feature:hover .about-feature-icon {
    transform: scale(1.2);
}

.about-feature-icon svg {
    width: 100%;
    height: 100%;
}

.about-feature h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-color);
    transition: var(--transition);
}

.about-feature:hover h4 {
    color: var(--primary-color);
}

.about-feature p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    transition: var(--transition);
}

.about-feature:hover p {
    color: var(--text-color);
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(249, 250, 251, 0.98) 0%, rgba(255, 255, 255, 0.98) 100%), url('../images/contact-bg.svg') center/cover no-repeat;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: white;
    border-radius: var(--radius);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--primary-light));
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.contact-card:hover::before {
    transform: scaleY(1);
}

.contact-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow);
    border-color: var(--primary-lighter);
}

.contact-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-lightest) 0%, var(--primary-lighter) 100%);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.contact-card:hover .contact-icon {
    transform: rotate(10deg) scale(1.1);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.3);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.contact-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: var(--primary-lighter);
    background-color: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: white;
    box-shadow: 0 0 0 3px var(--primary-lightest);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, rgba(31, 41, 55, 0.99) 0%, rgba(17, 24, 39, 0.99) 100%), url('../images/footer-bg.svg') center/cover no-repeat;
    color: white;
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    width: 36px;
    height: 36px;
}

.footer-logo h3 {
    font-size: 18px;
    font-weight: 600;
}

.footer-logo p {
    font-size: 11px;
    color: #9ca3af;
    letter-spacing: 1px;
}

.footer-desc {
    font-size: 14px;
    color: #9ca3af;
    line-height: 1.8;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-section a {
    font-size: 14px;
    color: #9ca3af;
    transition: var(--transition);
    display: inline-block;
}

.footer-section a:hover {
    color: white;
    padding-left: 8px;
    text-shadow: 0 0 10px rgba(124, 58, 237, 0.5);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.social-link:hover::before {
    left: 100%;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.4);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
}

.footer-bottom p {
    font-size: 13px;
    color: #9ca3af;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 600px;
        margin: 0 auto;
    }

    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .about-text .section-title {
        text-align: center;
    }

    .about-text {
        text-align: center;
    }

    .about-feature {
        text-align: left;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-img-small {
        bottom: -20px;
        right: -20px;
        width: 160px;
        height: 120px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        padding: 20px;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav ul {
        flex-direction: column;
        gap: 4px;
    }

    .nav a {
        display: block;
        padding: 14px 20px;
    }

    .hero {
        padding: 120px 0 80px;
        min-height: auto;
    }

    .hero-text h2 {
        font-size: 36px;
    }

    .section-title {
        font-size: 32px;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

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

    .about-img-small {
        display: none;
    }

    .about-img-main {
        margin-bottom: 30px;
    }

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

    .stat-number {
        font-size: 36px;
    }

    .stat-suffix {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-text h2 {
        font-size: 28px;
    }

    .section-title {
        font-size: 26px;
    }

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

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .stat-number {
        font-size: 36px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 24px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-text h2 {
        font-size: 24px;
    }

    .hero-text p {
        font-size: 16px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 16px;
    }

    .feature-icon svg {
        width: 36px;
        height: 36px;
    }

    .feature-card h3 {
        font-size: 18px;
    }

    .contact-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .contact-icon {
        width: 56px;
        height: 56px;
    }

    .contact-card h4 {
        font-size: 18px;
    }

    .social-links {
        justify-content: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-desc {
        text-align: center;
    }

    .footer-section h4 {
        text-align: center;
    }

    .footer-section ul {
        align-items: center;
    }

    .about-feature {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .about-feature-icon {
        margin-top: 0;
        margin-bottom: 8px;
    }

    .about-text .section-title {
        font-size: 28px;
    }

    .about-desc {
        font-size: 15px;
    }

    .section-badge {
        font-size: 12px;
        padding: 6px 16px;
    }

    .section-desc {
        font-size: 16px;
    }

    .product-card {
        border-radius: var(--radius);
    }

    .product-img {
        height: 180px;
    }

    .product-info {
        padding: 20px;
    }

    .product-info h3 {
        font-size: 18px;
    }

    .product-info p {
        font-size: 13px;
    }

    .product-link {
        font-size: 13px;
    }

    .contact-form {
        padding: 20px;
        border-radius: var(--radius);
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-group label {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px 14px;
        font-size: 13px;
    }

    .form-group textarea {
        min-height: 100px;
    }

    .footer-section a {
        font-size: 13px;
    }

    .footer-bottom p {
        font-size: 12px;
    }
}

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

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(124, 58, 237, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(124, 58, 237, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(124, 58, 237, 0);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.product-card,
.feature-card,
.contact-card {
    animation: fadeInUp 0.6s ease forwards;
}

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

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

.contact-card:nth-child(1) { animation: fadeInLeft 0.6s ease 0.1s forwards; }
.contact-card:nth-child(2) { animation: fadeInLeft 0.6s ease 0.2s forwards; }
.contact-card:nth-child(3) { animation: fadeInLeft 0.6s ease 0.3s forwards; }
.contact-card:nth-child(4) { animation: fadeInLeft 0.6s ease 0.4s forwards; }

.about-img-main { animation: fadeInLeft 0.8s ease forwards; }
.about-img-small { animation: fadeInRight 0.8s ease 0.3s forwards; }
.about-text { animation: fadeInRight 0.8s ease 0.2s forwards; }

.stat-item { animation: scaleIn 0.6s ease forwards; }
.stat-item:nth-child(1) { animation-delay: 0.1s; }
.stat-item:nth-child(2) { animation-delay: 0.2s; }
.stat-item:nth-child(3) { animation-delay: 0.3s; }
.stat-item:nth-child(4) { animation-delay: 0.4s; }

.hero-badge { animation: fadeInUp 0.6s ease 0.2s forwards; }
.hero-text h2 { animation: fadeInUp 0.6s ease 0.3s forwards; }
.hero-text p { animation: fadeInUp 0.6s ease 0.4s forwards; }
.hero-buttons { animation: fadeInUp 0.6s ease 0.5s forwards; }

.floating-card { animation: float 6s ease-in-out infinite; }
.card-1 { animation-delay: 0s; }
.card-2 { animation-delay: 2s; }
.card-3 { animation-delay: 4s; }

.section-badge { animation: scaleIn 0.6s ease forwards; }
.section-title { animation: fadeInUp 0.6s ease 0.1s forwards; }
.section-desc { animation: fadeInUp 0.6s ease 0.2s forwards; }