/* 滚动性能优化 */
html {
    scroll-behavior: smooth;
}

body {
    will-change: scroll-position;
    overflow-y: scroll;
    -webkit-overflow-scrolling: touch;
}

/* 对大型元素使用硬件加速 */
.hero-section,
.features-section,
.benefits-section,
.testimonials-section,
.comparison-table,
.table-container,
.user-comparison-grid,
.feature-section,
.feature-grid,
.feature-item,
.purchase-options,
.pricing-cards,
.pricing-card,
.purchase-faq {
    transform: translateZ(0);
    backface-visibility: hidden;
}

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

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: #0066cc;
}

ul {
    list-style: none;
}

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

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-top: 4px solid #f9f9f9;
}

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

.logo {
    display: flex;
    align-items: center;
    height: 100%;
}

.logo h1 {
    color: #0066cc;
    font-size: 1.8rem;
}

/* 导航菜单 */
nav {
    display: flex;
    align-items: stretch;
    height: 100%;
}

nav ul {
    display: flex;
    height: 100%;
}

nav ul li {
    height: 100%;
    display: flex;
    align-items: stretch;
    margin: 0 5px;
    position: relative;
}

nav ul li a {
    color: #333;
    font-weight: 500;
    padding: 0 18px;
    display: flex;
    align-items: center;
    position: relative;
    height: 100%;
    transition: color 0.3s;
    font-size: 18px;
}

nav ul li a:hover {
    color: #fd0505;
}

nav ul li a::before {
    content: '';
    position: absolute;
    width: 0;
    height: 4px;
    top: -4px;
    left: 0;
    background-color: #fd0505;
    transition: all 0.3s ease;
    z-index: 101;
}

nav ul li a.active::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 4px;
    top: -4px;
    left: 0;
    background-color: #fd0505;
    z-index: 101;
}

nav ul li a:hover::before {
    width: 100%;
}

nav ul li a.active {
    color: #fd0505;
}

/* Hero区域 */
.hero {
    background: linear-gradient(135deg, #0066cc, #00a1ff);
    color: white;
    text-align: center;
    padding: 100px 0;
}

/* 首页专用hero样式 */
.hero-home {
    background-color: rgba(0, 0, 0, 0);
    background-image: url('../images/banner.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    height: 450px;
    padding: 0;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-home::before {
    display: none;
}

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

.hero-home h2,
.hero-home p {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

.hero-home .btn-primary {
    position: relative;
    background: linear-gradient(45deg, #ffffff, #f0f0f0);
    color: #ff3300;
    font-size: 20px;
    font-weight: 600;
    padding: 18px 45px;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    z-index: 1;
    letter-spacing: 1px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.hero-home .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #f0f0f0, #ffffff);
    transition: all 0.4s ease;
    z-index: -1;
}

.hero-home .btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ff4400;
}

.hero-home .btn-primary:hover::before {
    left: 0;
}

.hero-home .btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
    z-index: -1;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) rotate(45deg);
    }

    20%,
    100% {
        transform: translateX(100%) rotate(45deg);
    }
}

/* 添加按钮点击效果 */
.hero-home .btn-primary:active {
    transform: translateY(1px) scale(0.98);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 添加按钮脉冲动画 */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(255, 255, 255, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
}

.hero-home .btn-primary {
    animation: pulse 2s infinite;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.btn-primary {
    display: inline-block;
    background-color: #fff;
    color: #0066cc;
    font-weight: bold;
    padding: 12px 30px;
    border-radius: 30px;
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: #f0f0f0;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: #fff;
    font-weight: bold;
    padding: 12px 30px;
    border-radius: 30px;
    border: 2px solid #fff;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.btn {
    display: inline-block;
    background-color: #0066cc;
    color: white;
    padding: 10px 20px;
    border-radius: 35px;
    margin-top: 20px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0052a3;
}

/* 产品概述 */
.product-overview {
    padding: 80px 0;
    background-color: #fff;
}

.product-overview h2 {
    text-align: center;
    margin-bottom: 50px;
    color: #333;
}

.overview-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.overview-text {
    flex: 1;
}

.overview-text p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.overview-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
}

/* 特点高亮 */
.features-highlight {
    padding: 80px 0;
    background-color: #f0f7ff;
}

.features-highlight h2 {
    text-align: center;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.feature-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.feature-card h3 {
    color: #0066cc;
    margin: 20px 20px 10px;
}

.feature-card p {
    color: #666;
    padding: 0 20px 20px;
}

/* PC端优势 */
.pc-advantage {
    padding: 80px 0;
    background-color: #fff;
}

.pc-advantage h2 {
    text-align: center;
    margin-bottom: 50px;
}

.advantage-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.advantage-text {
    flex: 1;
}

.advantage-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.advantage-text ul {
    margin-left: 20px;
}

.advantage-text ul li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.advantage-text ul li:before {
    content: "✓";
    color: #0066cc;
    position: absolute;
    left: 0;
}

.advantage-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
}

/* 用户评价 */
.testimonials {
    padding: 80px 0;
    background-color: #f0f7ff;
    text-align: center;
}

.testimonials h2 {
    margin-bottom: 50px;
}

.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
}

.testimonial p {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.testimonial-author {
    font-weight: bold;
    color: #666;
}

/* CTA部分 */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #0066cc, #00a1ff);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;

}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* 页脚 */
footer {
    background-color: #333;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #ccc;
}

.footer-logo p {
    color: #8b8b8b;
    font-size: 14px;
}

.footer-links h3,
.footer-contact h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #ccc;

}

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

.footer-links ul li a {
    color: #8b8b8b;
    transition: color 0.3s;
    font-size: 14px;
}

.footer-links ul li a:hover {
    color: #fff;
}

.footer-contact h3 {
    text-align: right;
}

.footer-contact p {
    margin-bottom: 10px;
    color: #8b8b8b;
    font-size: 14px;
    text-align: right;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        height: auto;
        padding: 10px 0;
    }

    .logo {
        display: none;
    }

    nav {
        width: 100%;
    }

    nav ul {
        justify-content: center;
        width: 100%;
    }

    nav ul li {
        height: 70px;
    }

    nav ul li a {
        padding: 0 15px;
        font-size: 14px;
    }

    nav ul li a::before,
    nav ul li a.active::before {
        top: 0;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .overview-content,
    .advantage-content {
        flex-direction: column;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        margin-bottom: 10px;
    }

    .hero-home{
        display: none;
    }
    .core-features{
        margin-top: 40px;
    }

    .container {
        padding: 0 10px;
        width: 100%;
    }
}

/* 页面标题banner */
.page-banner {
    background: linear-gradient(135deg, #0066cc, #00a1ff);
    color: white;
    text-align: center;
    padding: 60px 0;
}

.page-banner h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-banner p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

/* 购买页面特殊banner */
.purchase-banner {
    /* background-color: rgba(0, 0, 0, 0);
    background-image: url('../images/sub_buy.jpg');
    background-size: 100% auto;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-attachment: scroll; */

    /* background-image: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0)), url('../images/sub_buy.jpg'); */
    background:
        linear-gradient(45deg,
            #fa1b1b 0%,
            /* 纯红 */
            #b20710 25%,
            /* 宝石红 */
            #f81345 50%,
            /* 高光纯红 */
            #8b0000 100%
            /* 暗部红 */
        );
    background-size: 200% 200%;
    background-position: 0% 50%;
    background-size: cover;
    background-position: center;

    position: relative;
    height: 200px;
    padding: 0;
    display: flex;
    align-items: center;
}

/* 删除覆盖层 */
.purchase-banner::before {
    display: none;
}

.purchase-banner h2,
.purchase-banner p {
    position: relative;
    z-index: 2;

}

.purchase-banner h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.purchase-banner p {
    font-size: 1.1rem;
}

/* 版本对比页面特殊banner */
.comparison-banner {
    /* background-color: rgba(0, 0, 0, 0);
    background-image: url('../images/sub_db.jpg');
    background-size: 100% auto;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-attachment: scroll; */
    /* background-image: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0)), url('../images/sub_db.jpg'); */

    background:
        /* 垂直光柱 */
        linear-gradient(90deg,
            rgba(255, 255, 255, 0.05) 49%,
            transparent 50%),
        /* 星尘白点 */
        radial-gradient(circle at 20% 80%,
            rgba(255, 255, 255, 0.3) 1%,
            transparent 3%),
        /* 红黑渐变 */
        linear-gradient(135deg,
            #ff3333 0%,
            #330000 100%);
    background-size: 50px 100px, 200px 200px;

    background-size: cover;
    background-position: center;
    position: relative;
    height: 200px;
    padding: 0;
    display: flex;
    align-items: center;
}

.comparison-banner::before {
    display: none;
}

.comparison-banner h2,
.comparison-banner p {
    position: relative;
    z-index: 2;
}

.comparison-banner h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.comparison-banner p {
    font-size: 1.1rem;
}

/* 功能页面特殊banner */
.features-banner {
    /* background-color: rgba(0, 0, 0, 0);
    background-image: url('../images/sub_hx.jpg');
    background-size: 100% auto;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-attachment: scroll; */

    /* background-image: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0)), url('../images/sub_hx.jpg'); */
    background:
        /* 红色发光路径 */
        repeating-linear-gradient(90deg,
            transparent 0px,
            transparent 15px,
            rgba(255, 0, 0, 0.3) 15px,
            rgba(255, 0, 0, 0.3) 30px),
        /* 网格线 */
        linear-gradient(rgba(255, 50, 50, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 50, 50, 0.1) 1px, transparent 1px),
        /* 主背景 */
        linear-gradient(45deg,
            #4a0000 0%,
            #ff1a1a 100%);
    background-size: 100% 30px, 20px 20px, 20px 20px;
    background-blend-mode: screen;

    background-size: cover;
    background-position: center;

    position: relative;
    height: 200px;
    padding: 0;
    display: flex;
    align-items: center;
}

.features-banner::before {
    display: none;
}

.features-banner h2,
.features-banner p {
    position: relative;
    z-index: 2;
}

.features-banner h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.features-banner p {
    font-size: 1.1rem;
}

/* 详细功能列表 */
.features-detailed {
    padding: 80px 0;
    background-color: #fff;
}

.feature-detailed-item {
    display: flex;
    align-items: center;
    margin-bottom: 80px;
    gap: 50px;
}

.feature-detailed-item.reverse {
    flex-direction: row-reverse;
}

.feature-detailed-image img {
    width: 100%;
    border-radius: 5px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.4);
}

.feature-detailed-image {
    flex: 1;
}

.feature-detailed-content {
    flex: 1;
}

.feature-detailed-content h2 {
    color: #0066cc;
    margin-bottom: 20px;
}

.feature-detailed-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.feature-list {
    margin-left: 20px;
}

.feature-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.feature-list li:before {
    content: "✓";
    color: #0066cc;
    position: absolute;
    left: 0;
}

/* 系统要求 */
.system-requirements {
    padding: 80px 0;
    background-color: #f0f7ff;
}

.system-requirements h2 {
    text-align: center;
    margin-bottom: 50px;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.requirement-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.requirement-item h3 {
    color: #0066cc;
    margin-bottom: 20px;
    text-align: center;
}

.requirement-item ul {
    margin-left: 0;
}

.requirement-item ul li {
    margin-bottom: 15px;
    border-bottom: 1px solid #f0f0f0;
    padding-bottom: 10px;
    list-style: none;
}

.requirement-item ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* 版本对比表格 */
.comparison-table {
    padding: 80px 0;
    background-color: #fff;
}

.comparison-table h2 {
    text-align: center;
    margin-bottom: 50px;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th,
td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background-color: #0066cc;
    color: white;
}

tr:nth-child(even) {
    background-color: #f8f8f8;
}

.highlight {
    color: #0066cc;
    font-weight: bold;
}

.check-mark {
    color: #0066cc;
    font-weight: bold;
}

.dash {
    color: #999;
}

/* 购买选项 */
.purchase-options {
    padding: 80px 0;
    background-color: #fff;
}

.purchase-options h2 {
    text-align: center;
    margin-bottom: 50px;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.pricing-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(66, 66, 66, 0.75);
}

.pricing-card.featured {
    border: 1px solid #0066cc;
    position: relative;
}

.featured-tag {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: #0066cc;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #0066cc;
}

.pricing-card .price {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 20px;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: normal;
    color: #666;
}

.pricing-card ul {
    text-align: left;
    margin-bottom: 30px;
}

.pricing-card ul li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.pricing-card ul li:before {
    content: "✓";
    color: #0066cc;
    position: absolute;
    left: 0;
}

.purchase-method {
    padding: 60px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4efe9 100%);
}

.purchase-method-content {
    text-align: center;
    padding: 20px 0;
}

.btn-purchase-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(45deg, #ff6600, #ff3300);
    color: #fff;
    font-size: 24px;
    font-weight: 600;
    padding: 20px 80px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(255, 102, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-purchase-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #ff3300, #ff6600);
    transition: all 0.4s ease;
    z-index: 1;
}

.btn-purchase-large:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 30px rgba(255, 102, 0, 0.4);
}

.btn-purchase-large:hover::before {
    left: 0;
}

.btn-purchase-large .btn-text {
    position: relative;
    z-index: 2;
    margin-right: 15px;
}

.btn-purchase-large .btn-icon {
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
}

.btn-purchase-large:hover .btn-icon {
    transform: translateX(5px);
}

/* 添加按钮脉冲动画 */
@keyframes purchase-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 102, 0, 0.4);
    }

    70% {
        box-shadow: 0 0 0 20px rgba(255, 102, 0, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 102, 0, 0);
    }
}

.btn-purchase-large {
    animation: purchase-pulse 2s infinite;
}

/* 用户对比部分 */
.user-comparison {
    padding: 40px 0;
    background-color: #f0f7ff;
    text-align: center;
}

.user-comparison h2 {
    position: relative;
    display: inline-block;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 3px solid #0066cc;
    text-align: center;
}

.user-comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.user-comparison-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.user-comparison-item:hover {
    transform: translateY(-20px);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4);
}

.user-comparison-item.highlight-item {
    border: 1px solid #0066cc;
    box-shadow: 0 10px 25px rgba(0, 102, 204, 0.15);
}

.user-comparison-item h3 {
    color: #0066cc;
    font-size: 1.8rem;
    margin-bottom: 10px;
    text-align: center;
}

.user-comparison-item h4 {
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: center;
}

.user-comparison-item ul {
    margin-left: 0;
}

.user-comparison-item ul li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.user-comparison-item ul li:before {
    content: "✓";
    color: #0066cc;
    position: absolute;
    left: 0;
}

.table-note {
    margin-top: 20px;
    color: #666;
    /* font-style: italic; */
    text-align: center;
}

/* 订单表单 */
.order-form {
    padding: 80px 0;
    background-color: #f0f7ff;
}

.order-form h2 {
    text-align: center;
    margin-bottom: 50px;
}

.purchase-form {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 25px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

textarea {
    height: 120px;
    resize: vertical;
}

select {
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23333" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 10px center;
}

.form-group button {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
}

/* FAQ部分 */
.purchase-faq {
    padding: 80px 0;
    background-color: #fff;
}

.purchase-faq h2 {
    text-align: center;
    margin-bottom: 50px;
}

.faq-item {
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.faq-item h3 {
    cursor: pointer;
    position: relative;
    padding-right: 30px;
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.faq-item h3:after {
    content: "+";
    position: absolute;
    right: 0;
    top: 0;
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.faq-item.active h3:after {
    transform: rotate(45deg);
}

.faq-item p {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    color: #555;
    line-height: 1.7;
}

.faq-item.active p {
    max-height: 1000px;
    /* 足够大的值以确保内容显示 */
    margin-bottom: 15px;
}

/* 表格行高亮效果 */
.highlight-row {
    background-color: #f0f7ff !important;
    transition: background-color 0.3s;
}

/* 滚动时的头部效果 */
header.scrolled {
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
    transition: padding 0.3s, box-shadow 0.3s;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .purchase-form {
        padding: 30px 20px;
    }
}

.home-link {

    font-weight: 400;
    display: flex;
    align-items: center;
}

.home-link i {
    margin-right: 5px;
    font-size: 16px;
}

.home-link:hover {
    background-color: rgba(0, 102, 204, 0.1);
}

/* Add styles for hexagon grid layout in features section */
.features-hexagon-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 50px 0;
}

.feature-row {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-row-offset {
    margin-left: 60px;
    /* Create offset for middle row */
}

.feature-item.hexagon {
    position: relative;
    width: 200px;
    height: 230px;
    margin: 0 15px;
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.feature-item.hexagon.animate {
    opacity: 1;
    transform: translateY(0);
}

.feature-item.hexagon:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-item.hexagon:before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, #ffcc00, #ff6600);
}

.hexagon-content {
    padding: 20px;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
    background-color: rgba(255, 204, 0, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
    background-color: rgba(255, 204, 0, 0.2);
}

.feature-icon img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.feature-item h3 {
    font-size: 16px;
    color: #333;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.feature-item:hover h3 {
    color: #ff6600;
}

/* Styles for the software versions tabs */
.versions-tabs {
    margin: 40px auto;
    max-width: 1000px;
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.versions-nav {
    display: flex;
    background-color: #f8f8f8;
    border-bottom: 1px solid #eee;
}

.version-tab {
    flex: 1;
    padding: 15px;
    text-align: center;
    background: none;
    border: none;
    outline: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
    position: relative;
}

.version-tab:hover {
    color: #ff6600;
}

.version-tab.active {
    color: #ff6600;
    background-color: #fff;
}

.version-tab.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, #ffcc00, #ff6600);
}

.versions-content {
    padding: 30px;
    position: relative;
    min-height: 350px;
}

.version-panel {
    position: absolute;
    top: 30px;
    left: 30px;
    right: 30px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.version-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.version-header {
    text-align: center;
    margin-bottom: 30px;
}

.version-header h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 10px;
}

.version-header p {
    font-size: 16px;
}

.version-slogan {
    font-size: 16px;
    color: #888;
}

.version-features-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.feature-tag {
    padding: 8px 15px;
    background-color: #f5f5f5;
    border-radius: 30px;
    font-size: 14px;
    color: #555;
    transition: all 0.3s ease;
}

.feature-tag.highlight {
    background-color: rgba(255, 204, 0, 0.2);
    color: #ff6600;
    font-weight: 500;
}

.feature-tag:hover {
    background-color: #ffcc00;
    color: #333;
    transform: translateY(-3px);
}

.btn-version {
    display: block;
    width: 200px;
    margin: 0 auto;
    padding: 12px 25px;
    background: linear-gradient(to right, #ffcc00, #ff6600);
    color: #fff;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(255, 102, 0, 0.3);
}

.btn-version:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 102, 0, 0.4);
}

.btn-premium {
    background: linear-gradient(to right, #ff6600, #ff3366);
}

/* Download invitation styles */
.download-invitation {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4efe9 100%);
    padding: 80px 0;
}

.invitation-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 20px auto 0;
    gap: 40px;
}

.invitation-text {
    flex: 0 0 450px;
    /* 固定宽度500px */
    padding-right: 20px;
}

.invitation-title {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.3;
}

/* Download invitation section details */
.invitation-title .highlight {
    color: #ff6600;
    position: relative;
}

.invitation-title .highlight:after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(255, 204, 0, 0.4);
    z-index: -1;
}

.invitation-description {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin-bottom: 40px;
}

.benefits-list li {
    margin-bottom: 15px;
    font-size: 16px;
    color: #555;
    display: flex;
    align-items: center;
}

.benefits-list li i {
    color: #4caf50;
    margin-right: 10px;
    font-size: 18px;
}

.download-actions {
    display: flex;
    gap: 20px;
}

.btn-download-primary,
.btn-download-secondary {
    padding: 14px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.btn-download-primary {
    background-color: #ff6600;
    color: #fff;
    box-shadow: 0 5px 15px rgba(255, 102, 0, 0.3);
}

.btn-download-primary:hover {
    background-color: #ff5500;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 102, 0, 0.4);
}

.btn-download-secondary {
    background-color: #f5f5f5;
    color: #555;
}

.btn-download-secondary:hover {
    background-color: #ebebeb;
    transform: translateY(-5px);
}

.btn-download-primary i,
.btn-download-secondary i {
    margin-right: 10px;
}

.invitation-image {
    flex: 0 0 750px;
    /* 固定宽度700px */
    position: relative;
}

.invitation-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.floating-features {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.float-feature {
    position: absolute;
    padding: 8px 15px;
    background-color: #fff;
    border-radius: 20px;
    font-size: 14px;
    color: #ff6600;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    animation: float 3s infinite ease-in-out;
}

.float-feature:nth-child(1) {
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.float-feature:nth-child(2) {
    top: 50%;
    left: 5%;
    animation-delay: 0.5s;
}

.float-feature:nth-child(3) {
    bottom: 15%;
    right: 20%;
    animation-delay: 1s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Additional responsive styles for older elements */
@media screen and (max-width: 768px) {
    .invitation-description {
        font-size: 16px;
    }

    .download-actions {
        flex-direction: column;
        gap: 15px;
    }

    .float-feature {
        font-size: 12px;
        padding: 6px 12px;
    }
}

/* Styles for circular feature icons */
.features-circle-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 60px 0;
    width: 100%;
}

.feature-row {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 60px;
    flex-wrap: nowrap;
}

.feature-row:last-child {
    margin-bottom: 0;
}

.feature-item.circle {
    text-align: center;
    transition: all 0.3s ease;
    width: 22%;
    /* Make each item take approximately 1/4 of the container width */
    max-width: 220px;
    min-width: 160px;
    margin: 0;
}

.feature-item.circle .feature-icon {
    width: 160px;
    height: 160px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background-color: #fff;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    overflow: hidden;
    border: 6px solid rgba(255, 204, 0, 0.1);
}

.feature-item.circle:hover .feature-icon {
    transform: scale(1.05);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
    border-color: rgba(255, 102, 0, 0.2);
}

.feature-item.circle .feature-icon img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    transition: all 0.3s ease;
}

.feature-item.circle:hover .feature-icon img {
    transform: scale(1.1);
}

.feature-item.circle h3 {
    font-size: 17px;
    font-weight: 600;
    color: #444;
    margin-top: 15px;
    transition: all 0.3s ease;
}

.feature-item.circle:hover h3 {
    color: #ff6600;
    transform: translateY(3px);
}

/* Responsive adjustments for feature circles */
@media screen and (max-width: 1200px) {
    .feature-row {
        justify-content: space-around;
        flex-wrap: wrap;
        gap: 40px;
    }

    .feature-item.circle {
        width: 40%;
    }
}

@media screen and (max-width: 768px) {
    .feature-item.circle {
        width: 45%;
    }

    .feature-item.circle .feature-icon {
        width: 140px;
        height: 140px;
    }

    .feature-item.circle .feature-icon img {
        width: 85px;
        height: 85px;
    }
}

/* @media screen and (max-width: 576px) {
    .feature-item.circle {
        width: 100%;
        max-width: 220px;
    }
} */

/* Styles for version comparison */
.versions-comparison {
    margin: 40px auto;
    max-width: 1200px;
}

.versions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.version-card {
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 30px;
}

.version-card:hover {
    transform: translateY(-20px);
    box-shadow: 0px 15px 45px rgba(0, 0, 0, 0.7);

}

.version-header {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f5f5f5;
}

.version-header h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 10px;
}

.version-slogan {
    font-size: 14px;
    color: #888;
}

.version-features-list {
    flex-grow: 1;
    margin-bottom: 25px;
}

.version-features-list ul {
    list-style: none;
    padding: 0;
}

.version-features-list ul li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    border-bottom: 1px dashed #f5f5f5;
    color: #555;
    font-size: 16px;
}

.version-features-list ul li:last-child {
    border-bottom: none;
}

.version-features-list ul li i {
    color: #4caf50;
    margin-right: 10px;
}

.version-features-list ul li.highlight {
    color: #ff6600;
    font-weight: 500;
}

.btn-version {
    display: block;
    width: 100%;
    padding: 12px 25px;
    background: linear-gradient(to right, #ffcc00, #ff6600);
    color: #fff;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(255, 102, 0, 0.3);
    margin-top: auto;
}

.btn-version:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(255, 102, 0, 0.4);
}

.btn-premium {
    background: linear-gradient(to right, #ff6600, #ff3366);
}

/* Responsive styles for features and versions */
@media screen and (max-width: 1200px) {
    .versions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .versions-grid {
        grid-template-columns: 1fr;
    }

    .feature-item.circle .feature-icon {
        width: 120px;
        height: 120px;
    }

    .feature-item.circle .feature-icon img {
        width: 70px;
        height: 70px;
    }
}

/* Section header styles - standardized across all sections */
.section-header {
    text-align: center;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 32px;
    color: #333;
    font-weight: 700;
    margin-bottom: 15px;
    position: relative;
}

.title-underline {
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, #ffcc00, #ff6600);
    margin: 0 auto 20px;
    border-radius: 3px;
}

.section-subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

/* Responsive adjustments for section headers */
@media screen and (max-width: 768px) {
    .section-title {
        font-size: 28px;
    }

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

    .title-underline {
        width: 60px;
        margin-bottom: 15px;
    }
}

@media screen and (max-width: 576px) {
    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 24px;
    }

    .section-subtitle {
        font-size: 15px;
    }
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: #fff;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1000px;
    height: 700px;
    padding: 10px;
    border-radius: 10px;
    animation: modalFadeIn 0.3s ease-out;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -48%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.close-modal {
    position: absolute;
    right: 10px;
    top: 10px;
    font-size: 28px;
    font-weight: bold;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: #f5f5f5;
    z-index: 1;
}

.close-modal:hover {
    color: #fff;
    background-color: #ff6600;
    transform: rotate(90deg);
}

.modal-header {
    padding: 0 0 10px 0;
    margin-bottom: 10px;
    text-align: center;
}

.modal-header h2 {
    color: #333;
    margin: 0;
    font-size: 28px;
    font-weight: 600;
}

.modal-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* 功能详情样式 */
.feature-detail {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-detail img {
    width: 920px;
    height: 600px;
    object-fit: cover;
    border-radius: 1px;
    /* box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1); */
}

/* 响应式调整 */
@media screen and (max-width: 1024px) {
    .modal-content {
        width: 95%;
        height: auto;
        max-height: 90vh;
        margin: 5vh auto;
        position: relative;
        top: 0;
        left: 0;
        transform: none;
    }

    .feature-detail img {
        width: 100%;
        height: auto;
        max-height: 520px;
    }
}

/* 响应式调整 */
@media screen and (max-width: 1200px) {
    .invitation-content {
        flex-direction: column;
        gap: 30px;
    }

    .invitation-text {
        flex: 0 0 auto;
        width: 100%;
        max-width: 500px;
        padding-right: 0;
    }

    .invitation-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 700px;
    }
}

.purchase-process {
    padding: 10px 0;
    background: #f8f9fa;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    text-align: center;
    padding: 20px;
    min-width: 200px;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: #f70303;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon i {
    font-size: 36px;
    color: #fff;
}

.step h3 {
    margin-bottom: 10px;
    color: #333;
}

.step p {
    color: #666;
}


/* 联系客服部分 */
.contact-section {
    padding: 60px 0;
    background: #fff;
    text-align: center;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #4CAF50;
    color: #fff;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 20px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.contact-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
    color: #fff;
}

.contact-button i {
    font-size: 24px;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .feature-detailed-item {
        flex-direction: column !important;
        margin-bottom: 40px;
        gap: 10px;
    }

    .feature-detailed-item.reverse {
        flex-direction: column !important;
    }

    .feature-detailed-image {
        width: 100%;
        margin-bottom: 20px;
    }

    .feature-detailed-content {
        width: 100%;
    }


    .feature-detailed-content h2 {
        font-size: 20px;
        text-align: center;
    }

    .feature-detailed-content p {
        text-align: center;
    }

    .feature-list {
        padding: 0 15px;
    }
}