/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 容器 */
.zdb5b2container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.zdb5b2header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.zdb5b2header .zdb5b2container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.zdb5b2logo {
    font-size: 22px;
    font-weight: bold;
    color: #2196F3;
}

.zdb5b2nav ul {
    display: flex;
    list-style: none;
}

.zdb5b2nav ul li {
    margin-left: 20px;
}

.zdb5b2nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.zdb5b2nav ul li a:hover {
    color: #2196F3;
}

/* 主要内容区域 */
main {
    margin-top: 60px;
}

/* 英雄区域 */
.zdb5b2hero {
    background: linear-gradient(135deg, #2196F3, #1976D2);
    color: white;
    padding: 30px 0;
    text-align: center;
    overflow: hidden;
    position: relative;
}

.zdb5b2hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.05)"/></svg>');
    opacity: 0.1;
}

.zdb5b2hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.zdb5b2hero-text {
    flex: 1;
    text-align: left;
}

.zdb5b2hero h2 {
    font-size: 48px;
    margin-bottom: 15px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    background: linear-gradient(to right, #ffffff, #e3f2fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.zdb5b2hero p {
    font-size: 20px;
    margin-bottom: 25px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.95);
    max-width: 600px;
    font-weight: 500;
}

.zdb5b2download-buttons {
    margin-bottom: 15px;
}

.zdb5b2btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    margin: 0 10px;
    font-size: 18px;
    letter-spacing: 0.5px;
}

.zdb5b2btn-primary {
    background-color: #fff;
    color: #2196F3;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.zdb5b2btn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.zdb5b2btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.zdb5b2version-info {
    margin-top: 15px;
    font-size: 14px;
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: 15px;
}

.zdb5b2version-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.zdb5b2version-info span::before {
    content: '•';
    color: rgba(255,255,255,0.5);
}

.zdb5b2platform-tags {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.zdb5b2platform-tags span {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 16px;
    transition: all 0.3s;
    backdrop-filter: blur(5px);
    font-weight: 500;
}

.zdb5b2platform-tags span:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.zdb5b2stats {
    display: flex;
    justify-content: flex-start;
    gap: 30px;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.zdb5b2stat-item {
    text-align: left;
}

.zdb5b2stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.zdb5b2stat-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.zdb5b2hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.zdb5b2hero-image::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    z-index: -1;
}

.zdb5b2hero-image img {
    max-width: 100%;
    height: auto;
    max-height: 280px;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.1));
}

.zdb5b2floating {
    animation: float 6s ease-in-out infinite;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .zdb5b2hero {
        padding: 40px 0;
    }

    .zdb5b2hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .zdb5b2hero-text {
        text-align: center;
    }

    .zdb5b2hero p {
        margin: 0 auto 25px;
    }

    .zdb5b2hero-image img {
        max-height: 220px;
    }

    .zdb5b2hero h2 {
        font-size: 40px;
    }

    .zdb5b2stats {
        justify-content: center;
        gap: 30px;
    }

    .zdb5b2btn {
        padding: 10px 25px;
        font-size: 16px;
    }

    .zdb5b2platform-tags span {
        font-size: 14px;
        padding: 6px 12px;
    }

    .zdb5b2stat-number {
        font-size: 32px;
    }

    .zdb5b2stat-label {
        font-size: 15px;
    }

    .zdb5b2nav {
        position: static;
        top: auto;
        right: auto;
        width: 100%;
        max-width: none;
        height: auto;
        background: none;
        padding: 0;
        box-shadow: none;
        z-index: auto;
        display: block;
        opacity: 1;
        visibility: visible;
        margin-top: 0;
    }
    .zdb5b2nav ul {
        flex-direction: column;
        gap: 0;
        margin: 0;
        padding: 0;
    }
    .zdb5b2nav ul li {
        margin: 0;
        border-bottom: 1px solid #eee;
    }
    .zdb5b2nav ul li:last-child {
        border-bottom: none;
    }
    .zdb5b2nav ul li a {
        display: block;
        padding: 10px 0 10px 10px;
        font-size: 16px;
        color: #333;
    }
    .zdb5b2nav ul li a:hover {
        background: #f5f5f5;
        color: #2196F3;
    }
    /* 移除汉堡菜单和遮罩层样式 */
    .css365j_menu-toggle,
    .css365j_menu-toggle span,
    .css365j_menu-toggle.active span,
    .zdb5b2nav-overlay,
    .zdb5b2nav-overlay.active {
        display: none !important;
    }
    .zdb5b2header .zdb5b2container {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        height: auto;
        gap: 0;
        padding: 0 10px;
    }
    .zdb5b2logo {
        margin-bottom: 0;
        padding: 10px 0 0 0;
        font-size: 18px;
        text-align: left;
    }
    .zdb5b2nav {
        margin-top: 0;
        width: 100%;
        overflow-x: auto;
    }
    .zdb5b2nav ul {
        display: flex;
        flex-direction: row;
        gap: 0;
        margin: 0;
        padding: 0;
        list-style: none;
        white-space: nowrap;
        overflow-x: auto;
    }
    .zdb5b2nav ul li {
        margin: 0 8px 0 0;
        border: none;
        padding: 0;
    }
    .zdb5b2nav ul li:last-child {
        margin-right: 0;
    }
    .zdb5b2nav ul li a {
        display: inline-block;
        padding: 0 2px;
        font-size: 15px;
        color: #333;
        background: none;
        border: none;
        text-decoration: none;
        font-weight: 400;
        line-height: 2.2;
    }
    .zdb5b2nav ul li a:hover {
        color: #f60;
        background: none;
    }
}

@media (max-width: 480px) {
    .zdb5b2hero {
        padding: 30px 0;
    }

    .zdb5b2hero h2 {
        font-size: 32px;
    }

    .zdb5b2hero p {
        font-size: 16px;
    }

    .zdb5b2hero-image img {
        max-height: 160px;
    }

    .zdb5b2btn {
        padding: 10px 20px;
        font-size: 15px;
    }

    .zdb5b2stats {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .zdb5b2stat-item {
        text-align: center;
    }

    .zdb5b2platform-tags span {
        font-size: 13px;
        padding: 5px 10px;
    }

    .zdb5b2stat-number {
        font-size: 28px;
    }

    .zdb5b2stat-label {
        font-size: 14px;
    }

    .zdb5b2nav {
        width: 100%;
        max-width: none;
    }

    .zdb5b2nav ul li a {
        font-size: 15px;
    }
}

/* 功能特点区域 */
.zdb5b2features {
    padding: 60px 0;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.zdb5b2features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(33, 150, 243, 0.2), transparent);
}

.zdb5b2section-header {
    text-align: center;
    margin-bottom: 40px;
}

.zdb5b2section-header h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.zdb5b2section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #2196F3;
    border-radius: 3px;
}

.zdb5b2section-header p {
    color: #666;
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.zdb5b2feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.zdb5b2feature-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.zdb5b2feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, #2196F3, #1976D2);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.zdb5b2feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.zdb5b2feature-card:hover::before {
    transform: scaleX(1);
}

.zdb5b2feature-icon {
    width: 50px;
    height: 50px;
    background: #e3f2fd;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    position: relative;
}

.zdb5b2feature-icon i {
    font-size: 24px;
    color: #2196F3;
}

.zdb5b2feature-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 600;
}

.zdb5b2feature-content p {
    color: #666;
    font-size: 15px;
    line-height: 1.5;
    margin-bottom: 15px;
}

.zdb5b2feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zdb5b2feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: #555;
    font-size: 14px;
}

.zdb5b2icon-check {
    width: 18px;
    height: 18px;
    background: #e3f2fd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
    position: relative;
}

.zdb5b2icon-check::after {
    content: '✓';
    color: #2196F3;
    font-size: 12px;
    font-weight: bold;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .zdb5b2features {
        padding: 40px 0;
    }

    .zdb5b2section-header {
        margin-bottom: 30px;
    }

    .zdb5b2section-header h2 {
        font-size: 32px;
    }

    .zdb5b2section-header p {
        font-size: 16px;
        padding: 0 15px;
    }

    .zdb5b2feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 15px;
        padding: 0 15px;
    }

    .zdb5b2feature-card {
        padding: 15px;
    }

    .zdb5b2feature-icon {
        width: 50px;
        height: 50px;
    }

    .zdb5b2feature-icon i {
        font-size: 24px;
    }

    .zdb5b2feature-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .zdb5b2features {
        padding: 30px 0;
    }

    .zdb5b2section-header h2 {
        font-size: 24px;
    }

    .zdb5b2section-header p {
        font-size: 15px;
    }

    .zdb5b2feature-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .zdb5b2feature-card {
        padding: 15px;
    }

    .zdb5b2feature-icon {
        width: 45px;
        height: 45px;
        margin-bottom: 15px;
    }

    .zdb5b2feature-icon i {
        font-size: 22px;
    }

    .zdb5b2feature-content h3 {
        font-size: 18px;
    }

    .zdb5b2feature-content p {
        font-size: 14px;
    }

    .zdb5b2feature-list li {
        font-size: 14px;
    }
}

/* 使用指南区域 */
.zdb5b2guide {
    padding: 60px 0;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.zdb5b2guide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(33, 150, 243, 0.2), transparent);
}

.zdb5b2guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.zdb5b2guide-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(33, 150, 243, 0.1);
}

.zdb5b2guide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #2196F3, #1976D2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.zdb5b2guide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.zdb5b2guide-card:hover::before {
    opacity: 1;
}

.zdb5b2guide-icon {
    width: 50px;
    height: 50px;
    background: #e3f2fd;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    position: relative;
}

.zdb5b2guide-icon i {
    font-size: 28px;
    color: #2196F3;
}

.zdb5b2guide-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 600;
}

.zdb5b2guide-content p {
    color: #666;
    font-size: 15px;
    line-height: 1.5;
    margin-bottom: 20px;
}

.zdb5b2guide-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.zdb5b2guide-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.zdb5b2guide-list li:hover {
    background: #e3f2fd;
    transform: translateX(5px);
}

.zdb5b2guide-step {
    width: 35px;
    height: 35px;
    background: #2196F3;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 15px;
    margin-right: 12px;
    flex-shrink: 0;
}

.zdb5b2guide-step-content {
    flex: 1;
}

.zdb5b2guide-step-content h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
    font-weight: 600;
}

.zdb5b2guide-step-content p {
    font-size: 14px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .zdb5b2guide {
        padding: 40px 0;
    }

    .zdb5b2guide-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 15px;
        padding: 0 15px;
    }

    .zdb5b2guide-card {
        padding: 15px;
    }

    .zdb5b2guide-icon {
        width: 50px;
        height: 50px;
    }

    .zdb5b2guide-icon i {
        font-size: 24px;
    }

    .zdb5b2guide-content h3 {
        font-size: 20px;
    }

    .zdb5b2guide-list li {
        padding: 12px;
    }

    .zdb5b2guide-step {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .zdb5b2guide {
        padding: 30px 0;
    }

    .zdb5b2guide-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .zdb5b2guide-card {
        padding: 15px;
    }

    .zdb5b2guide-icon {
        width: 45px;
        height: 45px;
        margin-bottom: 15px;
    }

    .zdb5b2guide-icon i {
        font-size: 22px;
    }

    .zdb5b2guide-content h3 {
        font-size: 18px;
    }

    .zdb5b2guide-content p {
        font-size: 14px;
    }

    .zdb5b2guide-list li {
        padding: 10px;
    }

    .zdb5b2guide-step {
        width: 30px;
        height: 30px;
        font-size: 13px;
    }

    .zdb5b2guide-step-content h4 {
        font-size: 15px;
    }

    .zdb5b2guide-step-content p {
        font-size: 13px;
    }
}

/* FAQ区域 */
.zdb5b2faq {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.zdb5b2faq h2 {
    text-align: center;
    margin-bottom: 50px;
}

.zdb5b2faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.zdb5b2faq-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.zdb5b2faq-item h3 {
    color: #2196F3;
    margin-bottom: 15px;
}

/* 新闻动态区域 */
.zdb5b2news {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.zdb5b2news h2 {
    text-align: center;
    margin-bottom: 50px;
}

.zdb5b2news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.zdb5b2news-item {
    background: #f5f5f5;
    padding: 30px;
    border-radius: 10px;
    transition: transform 0.3s;
}

.zdb5b2news-item:hover {
    transform: translateY(-5px);
}

.zdb5b2news-date {
    color: #666;
    font-size: 14px;
    margin: 10px 0;
    font-weight: 500;
}

/* 下载区域 */
.zdb5b2download {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.zdb5b2download h2 {
    text-align: center;
    margin-bottom: 50px;
}

.zdb5b2download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.zdb5b2download-option {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.zdb5b2download-option .zdb5b2version,
.zdb5b2download-option .zdb5b2size {
    color: #666;
    margin: 5px 0;
    font-weight: 500;
}

/* 移动端下载区域 */
.zdb5b2mobile-download {
    margin-top: 50px;
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.zdb5b2mobile-download h3 {
    margin-bottom: 20px;
    color: #2196F3;
}

.zdb5b2app-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* 页脚 */
.zdb5b2footer {
    background-color: #333;
    color: white;
    padding: 30px 0 15px;
}

.zdb5b2footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.zdb5b2footer-section h3 {
    margin-bottom: 10px;
    color: #2196F3;
    font-size: 18px;
}

.zdb5b2footer-section p {
    margin: 8px 0;
    opacity: 0.8;
    font-size: 14px;
    line-height: 1.4;
}

.zdb5b2copyright {
    text-align: center;
    padding-top: 15px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 13px;
    opacity: 0.7;
}