/* 全局样式优化 */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gradient-primary: linear-gradient(135deg, #0d6efd, #0a58ca);
    --gradient-light: linear-gradient(135deg, #f0f8ff, #e6f0ff);
    --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 0.75rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #333;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
}

/* 导航栏样式优化 */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(13, 110, 253, 0.95) !important;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: linear-gradient(45deg, #fff, #e6f0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.nav-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;
}

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

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    color: #fff !important;
}

/* 主横幅样式优化 */
.hero-section {
    padding: 8rem 0;
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(13, 110, 253, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(13, 110, 253, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(13, 110, 253, 0.05) 0%, transparent 50%);
    animation: floatBg 15s ease-in-out infinite;
}

@keyframes floatBg {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    animation: slideInLeft 1s ease-out;
}

.hero-section .lead {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 2rem;
    animation: slideInLeft 1s ease-out 0.2s both;
}

.hero-section .btn {
    animation: slideInUp 1s ease-out 0.4s both;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: var(--transition);
}

.hero-section .btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: var(--shadow-light);
}

.hero-section .btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-heavy);
}

.hero-section img {
    animation: slideInRight 1s ease-out 0.6s both;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1));
    transition: var(--transition);
}

.hero-section:hover img {
    transform: perspective(1000px) rotateY(-5deg) scale(1.02);
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 6rem 0;
        text-align: center;
    }
    .hero-section h1 {
        font-size: 2.8rem;
    }
    .hero-section .lead {
        font-size: 1.1rem;
    }
}

/* 服务卡片样式优化 */
.card {
    transition: var(--transition);
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow-light);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-heavy);
}

.icon-box {
    width: 90px;
    height: 90px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.1), rgba(13, 110, 253, 0.05));
    border-radius: 50%;
    transition: var(--transition);
}

.card:hover .icon-box {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.15), rgba(13, 110, 253, 0.08));
}

/* 功能项样式优化 */
.feature-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.feature-item:hover {
    background: rgba(13, 110, 253, 0.03);
    border-left-color: var(--primary-color);
    transform: translateX(5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.1), rgba(13, 110, 253, 0.05));
    border-radius: 50%;
    transition: var(--transition);
}

.feature-item:hover .feature-icon {
    transform: rotate(360deg) scale(1.1);
}

/* section 通用样式优化 */
section {
    position: relative;
    transition: var(--transition);
    padding: 6rem 0;
}

section:nth-child(even) {
    background: linear-gradient(135deg, #fafbfc 0%, #f8f9fa 100%);
}

/* 关于我们样式优化 */
#about {
    background: #fff;
    position: relative;
    overflow: hidden;
}

#about img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
}

#about img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-heavy);
}

#about h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--dark-color);
    position: relative;
}

#about h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

#about .lead {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 1.5rem;
}

#about p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 1rem;
}

/* 联系我们样式优化 */
#contact {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 6rem 0;
}

#contact .card {
    border: none;
    box-shadow: var(--shadow-medium);
    border-radius: var(--border-radius);
    overflow: hidden;
}

#contactForm {
    padding: 2.5rem;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 0.875rem 1.25rem;
    transition: var(--transition);
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
    transform: translateY(-2px);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

#contactForm button[type="submit"] {
    background: var(--gradient-primary);
    border: none;
    border-radius: 50px;
    padding: 1rem 3rem;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

#contactForm button[type="submit"]:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

/* 页脚样式优化 */
footer {
    background: linear-gradient(135deg, #212529 0%, #343a40 100%) !important;
}

footer h5 {
    font-weight: 700;
    margin-bottom: 1rem;
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    text-decoration: none;
}

footer a:hover {
    color: #fff;
    transform: translateX(5px);
}

/* 通用按钮样式优化 */
.btn {
    transition: var(--transition);
    font-weight: 600;
    border-radius: 50px;
    padding: 0.75rem 2rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0a58ca;
}

/* 响应式设计优化 - 完整多设备适配 */

/* 超大屏幕 - PC大屏 (1400px以上) */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-section h1 {
        font-size: 4rem;
    }
    
    .hero-section .lead {
        font-size: 1.5rem;
    }
    
    section {
        padding: 8rem 0;
    }
}

/* 大屏幕 - PC (1200px-1399px) */
@media (min-width: 1200px) and (max-width: 1399px) {
    .hero-section h1 {
        font-size: 3.5rem;
    }
    
    .hero-section .lead {
        font-size: 1.4rem;
    }
    
    section {
        padding: 7rem 0;
    }
}

/* 中等屏幕 - iPad Pro横屏、小型笔记本 (992px-1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .hero-section h1 {
        font-size: 3rem;
    }
    
    .hero-section .lead {
        font-size: 1.3rem;
    }
    
    .hero-section {
        padding: 6rem 0;
    }
    
    section {
        padding: 6rem 0;
    }
    
    #about h2 {
        font-size: 2.5rem;
    }
    
    .card-body {
        padding: 1.5rem !important;
    }
}

/* 小屏幕 - iPad横屏、小型笔记本 (768px-991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .hero-section {
        padding: 5rem 0;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2.8rem;
    }
    
    .hero-section .lead {
        font-size: 1.2rem;
    }
    
    section {
        padding: 5rem 0;
    }
    
    #about h2 {
        font-size: 2.3rem;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
        padding: 1rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
    }
    
    .card {
        margin-bottom: 1.5rem;
    }
}

/* 平板 - iPad竖屏 (576px-767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .hero-section {
        padding: 4rem 0;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
    
    .hero-section .btn {
        display: block;
        width: 100%;
        max-width: 300px;
        margin: 0 auto 1rem;
    }
    
    section {
        padding: 4rem 0;
    }
    
    #about h2 {
        font-size: 2rem;
        text-align: center;
    }
    
    #about h2::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .feature-item {
        text-align: center;
        flex-direction: column;
        align-items: center;
    }
    
    .feature-icon {
        margin-right: 0 !important;
        margin-bottom: 1rem;
    }
    
    .card {
        margin-bottom: 1.5rem;
    }
    
    #contactForm {
        padding: 1.5rem;
    }
}

/* 手机 - 大屏幕 (481px-575px) */
@media (min-width: 481px) and (max-width: 575px) {
    .hero-section {
        padding: 3rem 0;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2.2rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
    
    .hero-section .btn {
        display: block;
        width: 100%;
        max-width: 280px;
        margin: 0 auto 1rem;
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    #about h2 {
        font-size: 1.8rem;
        text-align: center;
    }
    
    #about h2::after {
        left: 50%;
        transform: translateX(-50%);
        width: 60px;
    }
    
    .feature-item {
        text-align: center;
        flex-direction: column;
        align-items: center;
        padding: 1rem;
    }
    
    .feature-icon {
        width: 45px;
        height: 45px;
        margin-right: 0 !important;
        margin-bottom: 0.75rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .card-body {
        padding: 1.25rem !important;
    }
    
    #contactForm {
        padding: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
    
    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
}

/* 手机 - 小屏幕 (320px-480px) */
@media (max-width: 480px) {
    .hero-section {
        padding: 2.5rem 0;
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 1.8rem;
        margin-bottom: 1rem;
    }
    
    .hero-section .lead {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-section .btn {
        display: block;
        width: 100%;
        margin: 0 auto 0.75rem;
        padding: 0.6rem 1.25rem;
        font-size: 0.9rem;
    }
    
    section {
        padding: 2.5rem 0;
    }
    
    #about h2 {
        font-size: 1.6rem;
        text-align: center;
    }
    
    #about h2::after {
        left: 50%;
        transform: translateX(-50%);
        width: 50px;
    }
    
    .feature-item {
        text-align: center;
        flex-direction: column;
        align-items: center;
        padding: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .feature-icon {
        width: 40px;
        height: 40px;
        margin-right: 0 !important;
        margin-bottom: 0.5rem;
    }
    
    .feature-item h5 {
        font-size: 1.1rem;
    }
    
    .feature-item p {
        font-size: 0.9rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .card-body {
        padding: 1rem !important;
    }
    
    .card-title {
        font-size: 1.2rem;
    }
    
    .card-text {
        font-size: 0.9rem;
    }
    
    #contactForm {
        padding: 0.75rem;
    }
    
    .form-control {
        padding: 0.6rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.5rem;
        font-size: 0.85rem;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* 横竖屏适配 */
@media (orientation: landscape) and (max-width: 896px) {
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }
    
    .feature-item {
        margin-bottom: 1.5rem;
    }
}

/* 动画效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 自定义滚动条 */
::-webkit-scrollbar {