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

/* 基础样式 */
.zfc2f9body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.zfc2f9container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

body {
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* 头部导航样式 */
.zfc2f9header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.zfc2f9header .zfc2f9container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.zfc2f9logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.zfc2f9logo-text {
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0;
}

.zfc2f9logo-subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
    white-space: nowrap;
}

.zfc2f9nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.zfc2f9nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
    padding: 0.5rem 0;
    display: block;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.zfc2f9nav-link:hover {
    opacity: 0.8;
}

.zfc2f9mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 5px;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
}

.zfc2f9mobile-menu-toggle.zfc2f9active .zfc2f9menu-icon:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.zfc2f9mobile-menu-toggle.zfc2f9active .zfc2f9menu-icon:nth-child(2) {
    opacity: 0;
}

.zfc2f9mobile-menu-toggle.zfc2f9active .zfc2f9menu-icon:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.zfc2f9menu-icon {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 主横幅区域 */
.zfc2f9hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.zfc2f9hero-wrapper {
    display: flex;
    align-items: center;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.zfc2f9hero-content {
    flex: 1;
    text-align: left;
    z-index: 2;
}

.zfc2f9hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

.zfc2f9hero-img {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    animation: zfc2f9float 3s ease-in-out infinite;
    will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
    .zfc2f9hero-img {
        animation: none;
    }
}

@keyframes zfc2f9float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.zfc2f9hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    line-height: 1.2;
    text-align: left;
}

.zfc2f9hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.zfc2f9hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.zfc2f9btn {
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    border: 2px solid transparent;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.zfc2f9btn-primary {
    background: #fff;
    color: #667eea;
}

.zfc2f9btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.zfc2f9btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.zfc2f9btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.zfc2f9btn-download {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    width: 100%;
    text-align: center;
}

.zfc2f9btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.zfc2f9hero-stats {
    display: flex;
    justify-content: flex-start;
    gap: 3rem;
    flex-wrap: wrap;
}

.zfc2f9stat-item {
    text-align: center;
}

.zfc2f9stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.zfc2f9stat-label {
    display: block;
    font-size: 1rem;
    opacity: 0.9;
}

/* 功能特点区域 */
.zfc2f9features {
    padding: 80px 0;
    background: #fff;
}

.zfc2f9section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.zfc2f9section-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #333;
}

.zfc2f9section-description {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.zfc2f9features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.zfc2f9feature-card {
    background: #f9f9f9;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
    border: 1px solid #e0e0e0;
}

.zfc2f9feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: #667eea;
}

@media (hover: none) {
    .zfc2f9feature-card:hover {
        transform: none;
    }
}

.zfc2f9feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.zfc2f9feature-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #333;
}

.zfc2f9feature-description {
    color: #666;
    line-height: 1.8;
}

/* 下载区域 */
.zfc2f9download {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.zfc2f9download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.zfc2f9download-card {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.zfc2f9download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

@media (hover: none) {
    .zfc2f9download-card:hover {
        transform: none;
    }
}

.zfc2f9download-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.zfc2f9download-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: #333;
}

.zfc2f9download-version {
    color: #667eea;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.zfc2f9download-size {
    color: #666;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* 产品优势区域 */
.zfc2f9advantages {
    padding: 80px 0;
    background: #f9f9f9;
}

.zfc2f9advantages-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.zfc2f9advantage-item {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.zfc2f9advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.zfc2f9advantage-title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #667eea;
}

.zfc2f9advantage-text {
    color: #666;
    line-height: 1.8;
}

/* 常见问题区域 */
.zfc2f9faq {
    padding: 80px 0;
    background: #fff;
}

.zfc2f9faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.zfc2f9faq-item {
    background: #f9f9f9;
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    transition: all 0.3s;
}

.zfc2f9faq-item:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.zfc2f9faq-question {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #333;
}

.zfc2f9faq-answer {
    color: #666;
    line-height: 1.8;
}

/* 关于我们区域 */
.zfc2f9about {
    padding: 80px 0;
    background: #f9f9f9;
}

.zfc2f9about-content {
    max-width: 900px;
    margin: 0 auto;
}

.zfc2f9about-text {
    text-align: center;
}

.zfc2f9about-description {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.zfc2f9about-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.zfc2f9about-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.zfc2f9about-feature-icon {
    color: #667eea;
    font-weight: bold;
    font-size: 1.2rem;
}

.zfc2f9about-feature-text {
    color: #333;
    font-weight: 500;
}

/* 页脚样式 */
.zfc2f9footer {
    background: #2c3e50;
    color: #fff;
    padding: 50px 0 20px;
}

.zfc2f9footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.zfc2f9footer-section {
    margin-bottom: 1rem;
}

.zfc2f9footer-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.zfc2f9footer-heading {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.zfc2f9footer-description {
    color: #bbb;
    line-height: 1.6;
}

.zfc2f9footer-links {
    list-style: none;
}

.zfc2f9footer-links li {
    margin-bottom: 0.5rem;
}

.zfc2f9footer-link {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s;
}

.zfc2f9footer-link:hover {
    color: #fff;
}

.zfc2f9footer-text {
    color: #bbb;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.zfc2f9footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1.5rem;
    text-align: center;
}

.zfc2f9footer-copyright {
    color: #bbb;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1400px) {
    .zfc2f9hero-wrapper {
        gap: 2.5rem;
    }
}

@media (max-width: 1200px) {
    .zfc2f9container {
        padding: 0 30px;
    }

    .zfc2f9hero-title {
        font-size: 2.8rem;
    }
}

@media (min-width: 769px) and (max-width: 992px) {
    .zfc2f9features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .zfc2f9download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .zfc2f9container {
        padding: 0 20px;
    }

    .zfc2f9hero-wrapper {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .zfc2f9hero-content {
        text-align: center;
    }

    .zfc2f9hero-title {
        text-align: center;
        font-size: 2.5rem;
    }

    .zfc2f9hero-subtitle {
        font-size: 1.2rem;
    }

    .zfc2f9hero-buttons {
        justify-content: center;
    }

    .zfc2f9hero-stats {
        justify-content: center;
    }

    .zfc2f9hero-img {
        max-height: 400px;
    }

    .zfc2f9features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .zfc2f9download-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

@media (max-width: 768px) {
    .zfc2f9container {
        padding: 0 15px;
    }

    .zfc2f9header {
        padding: 0.8rem 0;
    }

    .zfc2f9logo-text {
        font-size: 1.5rem;
    }

    .zfc2f9logo-subtitle {
        font-size: 0.75rem;
    }

    .zfc2f9nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: #667eea;
        display: none;
        padding: 1rem 0;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }

    .zfc2f9nav-active {
        display: block;
    }

    .zfc2f9nav-list {
        flex-direction: column;
        gap: 0;
        padding: 0 20px;
    }

    .zfc2f9nav-item {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .zfc2f9nav-item:last-child {
        border-bottom: none;
    }

    .zfc2f9nav-link {
        display: block;
        padding: 1rem 0;
        font-size: 1rem;
    }

    .zfc2f9mobile-menu-toggle {
        display: flex;
    }

    .zfc2f9hero {
        padding: 60px 0;
    }

    .zfc2f9hero-wrapper {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .zfc2f9hero-content {
        text-align: center;
    }

    .zfc2f9hero-title {
        font-size: 2rem;
        text-align: center;
        line-height: 1.3;
    }

    .zfc2f9hero-subtitle {
        font-size: 1.1rem;
        padding: 0 10px;
    }

    .zfc2f9hero-buttons {
        justify-content: center;
        flex-direction: row;
        gap: 0.8rem;
    }

    .zfc2f9hero-stats {
        justify-content: center;
        gap: 1.5rem;
    }

    .zfc2f9hero-img {
        max-height: 300px;
        width: 100%;
        padding: 0 20px;
    }

    .zfc2f9stat-number {
        font-size: 2rem;
    }

    .zfc2f9stat-label {
        font-size: 0.9rem;
    }

    .zfc2f9section-title {
        font-size: 2rem;
        line-height: 1.3;
    }

    .zfc2f9section-description {
        font-size: 1rem;
        padding: 0 10px;
    }

    .zfc2f9features {
        padding: 60px 0;
    }

    .zfc2f9features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .zfc2f9feature-card {
        padding: 1.5rem;
    }

    .zfc2f9feature-icon {
        font-size: 2.5rem;
    }

    .zfc2f9feature-title {
        font-size: 1.3rem;
    }

    .zfc2f9download {
        padding: 60px 0;
    }

    .zfc2f9download-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .zfc2f9download-card {
        padding: 1.5rem;
    }

    .zfc2f9advantages {
        padding: 60px 0;
    }

    .zfc2f9advantages-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .zfc2f9advantage-item {
        padding: 1.5rem;
    }

    .zfc2f9faq {
        padding: 60px 0;
    }

    .zfc2f9faq-item {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .zfc2f9faq-question {
        font-size: 1.1rem;
    }

    .zfc2f9about {
        padding: 60px 0;
    }

    .zfc2f9about-description {
        font-size: 1rem;
        padding: 0 10px;
    }

    .zfc2f9about-features {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .zfc2f9footer {
        padding: 40px 0 20px;
    }

    .zfc2f9footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .zfc2f9footer-section {
        text-align: center;
    }
}

@media (max-width: 576px) {
    .zfc2f9hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .zfc2f9stat-item {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .zfc2f9container {
        padding: 0 12px;
    }

    .zfc2f9logo-text {
        font-size: 1.3rem;
    }

    .zfc2f9logo-subtitle {
        font-size: 0.7rem;
        display: none;
    }

    .zfc2f9hero {
        padding: 40px 0;
    }

    .zfc2f9hero-title {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 0.8rem;
    }

    .zfc2f9hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 1.5rem;
        padding: 0 5px;
    }

    .zfc2f9hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 0.8rem;
        margin-bottom: 2rem;
    }

    .zfc2f9btn {
        width: 100%;
        max-width: 100%;
        padding: 14px 20px;
        text-align: center;
        font-size: 1rem;
        min-height: 44px;
    }

    .zfc2f9hero-img {
        max-height: 220px;
        padding: 0 10px;
    }

    .zfc2f9hero-stats {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .zfc2f9stat-item {
        width: 100%;
    }

    .zfc2f9stat-number {
        font-size: 1.8rem;
    }

    .zfc2f9stat-label {
        font-size: 0.85rem;
    }

    .zfc2f9section-title {
        font-size: 1.8rem;
        line-height: 1.3;
        margin-bottom: 0.8rem;
    }

    .zfc2f9section-description {
        font-size: 0.95rem;
        padding: 0 5px;
    }

    .zfc2f9features {
        padding: 50px 0;
    }

    .zfc2f9features-grid {
        gap: 1.2rem;
    }

    .zfc2f9feature-card {
        padding: 1.2rem;
    }

    .zfc2f9feature-icon {
        font-size: 2rem;
        margin-bottom: 0.8rem;
    }

    .zfc2f9feature-title {
        font-size: 1.2rem;
        margin-bottom: 0.8rem;
    }

    .zfc2f9feature-description {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .zfc2f9download {
        padding: 50px 0;
    }

    .zfc2f9download-grid {
        gap: 1.2rem;
    }

    .zfc2f9download-card {
        padding: 1.2rem;
    }

    .zfc2f9download-icon {
        font-size: 2.5rem;
    }

    .zfc2f9download-title {
        font-size: 1.2rem;
    }

    .zfc2f9download-version,
    .zfc2f9download-size {
        font-size: 0.85rem;
    }

    .zfc2f9advantages {
        padding: 50px 0;
    }

    .zfc2f9advantages-content {
        gap: 1.2rem;
    }

    .zfc2f9advantage-item {
        padding: 1.2rem;
    }

    .zfc2f9advantage-title {
        font-size: 1.1rem;
    }

    .zfc2f9advantage-text {
        font-size: 0.9rem;
    }

    .zfc2f9faq {
        padding: 50px 0;
    }

    .zfc2f9faq-item {
        padding: 1.2rem;
        margin-bottom: 0.8rem;
    }

    .zfc2f9faq-question {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }

    .zfc2f9faq-answer {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .zfc2f9about {
        padding: 50px 0;
    }

    .zfc2f9about-description {
        font-size: 0.95rem;
        margin-bottom: 1.2rem;
    }

    .zfc2f9about-feature-text {
        font-size: 0.9rem;
    }

    .zfc2f9footer {
        padding: 30px 0 15px;
    }

    .zfc2f9footer-title {
        font-size: 1.3rem;
    }

    .zfc2f9footer-heading {
        font-size: 1.1rem;
    }

    .zfc2f9footer-description,
    .zfc2f9footer-text {
        font-size: 0.9rem;
    }
}

/* 横屏移动设备优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .zfc2f9hero {
        padding: 40px 0;
    }

    .zfc2f9hero-img {
        max-height: 250px;
    }

    .zfc2f9hero-title {
        font-size: 1.8rem;
    }

    .zfc2f9hero-subtitle {
        font-size: 1rem;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .zfc2f9hero-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 打印样式 */
@media print {
    .zfc2f9header,
    .zfc2f9footer,
    .zfc2f9hero-buttons,
    .zfc2f9btn,
    .zfc2f9mobile-menu-toggle {
        display: none;
    }

    .zfc2f9hero,
    .zfc2f9features,
    .zfc2f9download,
    .zfc2f9about {
        page-break-inside: avoid;
    }

    .zfc2f9hero-wrapper {
        flex-direction: column;
    }
}