/* 基础设置 */
:root {
    --primary: #165DFF;
    --secondary: #0E2E91;
    --accent: #00C853;
    --dark: #121212;
    --light: #F5F7FA;
    --gray: #666666;
    --light-gray: #F0F2F5;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 导航栏样式 */
.header {
    background-color: var(--primary);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 50;
    transition: all 0.3s ease;
}

.header.scrolled {
    background-color: rgba(22, 93, 255, 0.95);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.logo {
    display: flex;
    align-items: center;
    color: white;
}

.header-icon {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.nav-link {
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.download-btn {
    background-color: #007BFF;
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.download-btn:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.mobile-menu-button {
    background: none;
    border: none;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
}

.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: rgba(22, 93, 255, 0.95);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: none;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-link {
    display: block;
    color: white;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.download-btn-mobile {
    background-color: #007BFF;
    color: white;
    display: block;
    padding: 0.75rem 1.5rem;
    text-align: center;
    border-radius: 4px;
    margin: 0.75rem 1.5rem;
}

.download-btn-mobile:hover {
    background-color: #0056b3;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 12rem 0 8rem;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/skin/img/banna.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.download-button {
    background-color: var(--accent);
    color: white;
    padding: 0.875rem 2rem;
    border-radius: 4px;
    font-size: 1.125rem;
    font-weight: 500;
    display: inline-block;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.download-button:hover {
    background-color: #00b248;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* 功能区域样式 */
.features {
    padding: 8rem 0;
    background-color: var(--light);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.feature {
    text-align: center;
    margin-bottom: 4rem;
    padding: 0 1rem;
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: all 0.3s ease;
}

.feature:hover i {
    transform: scale(1.1);
}

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature p {
    color: var(--gray);
}

/* 用户评价样式 */
.testimonials {
    padding: 8rem 0;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.testimonial {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.testimonial:hover {
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.user-avatar {
    margin-bottom: 1rem;
}

.testimonial blockquote {
    font-style: italic;
    color: var(--gray);
    margin-bottom: 1rem;
}

.user-name {
    font-weight: 600;
    color: var(--primary);
}

/* 行动召唤区域样式 */
.cta {
    padding: 8rem 0;
    background-color: var(--primary);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 页脚样式 */
.footer {
    background-color: var(--dark);
    color: white;
    padding: 6rem 0 3rem;
}

.footer-heading {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-text {
    color: #ccc;
    margin-bottom: 1.5rem;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-link {
    color: #ccc;
}

.footer-link:hover {
    color: white;
}

.footer-social {
    color: #ccc;
    font-size: 1.25rem;
    margin-right: 1rem;
}

.footer-social:hover {
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .features h2,
    .testimonials h2,
    .cta h2 {
        font-size: 2rem;
    }
    
    .feature h3 {
        font-size: 1.25rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}
/* 基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft Yahei", sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background-color: #0d6efd; /* 蓝色主题 */
    color: white;
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 9999;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 24px;
    font-weight: bold;
    float: left;
    display: block;
    color: white;
}

nav {
    float: right;
}

nav ul {
    display: flex;
    align-items: center;
}

nav li {
    margin-left: 25px;
}

nav a {
    color: white;
    font-size: 16px;
    transition: opacity 0.3s ease;
}

nav a:hover {
    opacity: 0.8;
}

/* 清除浮动 */
header::after {
    content: "";
    display: table;
    clear: both;
}

/* 移动端适配 */
@media (max-width: 768px) {
    nav {
        display: none;
        position: absolute;
        top: 60px;
        right: 20px;
        background-color: #0d6efd;
        flex-direction: column;
        width: 150px;
        border-radius: 5px;
        overflow: hidden;
        z-index: 9998;
    }

    nav.active {
        display: flex;
    }

    nav ul {
        flex-direction: column;
        width: 100%;
    }

    nav li {
        width: 100%;
        text-align: center;
        padding: 10px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .menu-toggle {
        display: block;
        cursor: pointer;
        color: white;
        font-size: 20px;
        float: right;
        line-height: 30px;
    }
}
/* 页脚样式 */
footer {
    background-color: #f1f1f1;
    color: #666;
    padding: 40px 0;
    margin-top: 60px;
    font-size: 14px;
}

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

footer p {
    margin-bottom: 10px;
}

footer ul {
    display: flex;
    list-style: none;
}

footer ul li {
    margin-left: 20px;
}

footer ul li a {
    color: #666;
    transition: color 0.3s ease;
}

footer ul li a:hover {
    color: #0d6efd; /* 悬停时变为蓝色 */
}

/* 主体内容区域 */
main {
    padding: 60px 0;
    background-color: #f9f9f9;
}

/* 产品介绍部分 */
.product-intro {
    text-align: center;
    padding-bottom: 40px;
}

.product-intro h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
}

.product-intro p {
    font-size: 16px;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* 功能模块样式 */
.product-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 30px;
}

.product-feature i {
    font-size: 48px;
    color: #0d6efd;
    margin-bottom: 20px;
}

.product-feature h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.product-feature p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 鼠标悬停效果 */
.product-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}