/* 全局变量 */
:root {
    --color-primary: #1a237e;
    --color-secondary: #0d47a1;
    --color-accent: #2196f3;
    --color-white: #ffffff;
    --color-gray: #f5f5f5;
    --color-dark: #333333;
    --color-light: #e3f2fd;
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-accent: linear-gradient(135deg, var(--color-accent), #1976d2);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.z3420fcontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 确保图片在移动端自适应 */
img {
    max-width: 100%;
    height: auto;
}

/* 顶部信息栏 */
.z3420ftop-bar {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px 0;
    font-size: 14px;
}

.z3420ftop-bar .z3420fcontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.z3420ftop-bar-left {
    display: flex;
    gap: 20px;
}

.z3420fcontact-info {
    display: flex;
    gap: 15px;
}

.z3420fcontact-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.z3420fserver-status {
    display: flex;
    align-items: center;
    gap: 5px;
}

.z3420fstatus-dot {
    width: 8px;
    height: 8px;
    background: #4caf50;
    border-radius: 50%;
}

.z3420ftop-bar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.z3420flanguage-selector {
    display: flex;
    gap: 10px;
}

.z3420flanguage-selector span {
    cursor: pointer;
    transition: var(--transition);
}

.z3420flanguage-selector span:hover {
    color: var(--color-accent);
}

.z3420fuser-actions {
    display: flex;
    gap: 15px;
}

.z3420fbtn-download {
    background: var(--color-accent);
    color: var(--color-white);
    padding: 5px 15px;
    border-radius: 4px;
    text-decoration: none;
    transition: var(--transition);
}

.z3420fbtn-download:hover {
    background: #1976d2;
}

.z3420fbtn-login {
    color: var(--color-white);
    cursor: pointer;
    transition: var(--transition);
}

.z3420fbtn-login:hover {
    color: var(--color-accent);
}

/* 头部导航 */
.z3420fheader {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.z3420fnav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.z3420flogo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.z3420flogo h1 {
    font-size: 24px;
    color: var(--color-primary);
    margin: 0;
    text-transform: none;
}

.z3420flogo-tag {
    background: var(--color-accent);
    color: var(--color-white);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.z3420fnav-menu {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z3420fnav-menu a {
    color: var(--color-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.z3420fnav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
}

.z3420fnav-menu a:hover::after {
    width: 100%;
}

.z3420fmenu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 1001;
}

.z3420fmenu-toggle i {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--color-dark);
    border-radius: 2px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: var(--transition);
}

.z3420fmenu-toggle::before,
.z3420fmenu-toggle::after {
    content: '';
    display: block;
    width: 24px;
    height: 3px;
    background: var(--color-dark);
    border-radius: 2px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: var(--transition);
}

.z3420fmenu-toggle::before {
    top: 12px;
}

.z3420fmenu-toggle::after {
    bottom: 12px;
}

.z3420fmenu-toggle.z3420factive::before {
    top: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

.z3420fmenu-toggle.z3420factive::after {
    bottom: 50%;
    transform: translate(-50%, 50%) rotate(-45deg);
}

.z3420fmenu-toggle.z3420factive i {
    opacity: 0;
}

/* 主横幅 */
.z3420fmain-banner {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.z3420fmain-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(0,0,0,0.03)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.5;
}

.z3420fbanner-container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: center;
}

.z3420fbanner-content {
    color: var(--color-dark);
    text-align: center;
}

.z3420fbanner-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
    color: var(--color-dark);
    text-align: center;
}

.z3420fbanner-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    color: var(--color-dark);
    opacity: 0.8;
    line-height: 1.6;
    text-align: center;
}

.z3420fbanner-features {
    display: flex;
    gap: 25px;
    margin-bottom: 35px;
    flex-wrap: wrap;
    justify-content: center;
}

.z3420fbanner-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.8);
    padding: 10px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    font-size: 16px;
    color: var(--color-dark);
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.z3420fbanner-feature-item:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.z3420fbanner-feature-item i {
    font-size: 18px;
    color: var(--color-accent);
}

.z3420fbanner-feature-item span {
    color: var(--color-dark);
}

.z3420fbanner-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.z3420fbanner-btn {
    padding: 14px 35px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

.z3420fbanner-btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.4);
}

.z3420fbanner-btn-primary:hover {
    background: #1976d2;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.6);
}

.z3420fbanner-btn-secondary {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.z3420fbanner-btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

.z3420fbanner-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z3420fbanner-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    object-fit: contain;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}

.z3420fbanner-img:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}


/* 响应式设计 */
@media (max-width: 992px) {
    .z3420fbanner-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .z3420fbanner-title {
        font-size: 36px;
    }

    .z3420fbanner-subtitle {
        font-size: 18px;
    }

    .z3420fbanner-features {
        justify-content: center;
    }

    .z3420fbanner-actions {
        justify-content: center;
    }

    .z3420fbanner-img {
        max-width: 400px;
    }

    .z3420fnav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 15px;
        z-index: 999;
    }

    .z3420fnav-menu.z3420factive {
        display: flex;
    }

    .z3420fnav-menu a {
        padding: 10px 0;
        border-bottom: 1px solid var(--color-gray);
    }

    .z3420fnav-menu a:last-child {
        border-bottom: none;
    }

    .z3420fmenu-toggle {
        display: block;
    }

    .z3420fheader {
        position: relative;
    }
}

@media (max-width: 768px) {
    .z3420fmain-banner {
        padding: 40px 0;
    }

    .z3420fbanner-title {
        font-size: 28px;
    }

    .z3420fbanner-subtitle {
        font-size: 16px;
    }

    .z3420fbanner-features {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .z3420fbanner-feature-item {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }

    .z3420fbanner-actions {
        flex-direction: column;
        width: 100%;
    }

    .z3420fbanner-btn {
        width: 100%;
        max-width: 300px;
    }

    .z3420fbanner-img {
        max-width: 100%;
    }

    .z3420ftop-bar .z3420fcontainer {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .z3420ftop-bar-left, .z3420ftop-bar-right {
        flex-direction: column;
        gap: 10px;
    }

    .z3420flogo h1 {
        font-size: 20px;
    }

    .z3420fnav-container {
        padding: 10px 0;
    }

    .z3420fcontainer {
        padding: 0 15px;
    }

    /* 产品特点 */
    .z3420ffeatures {
        padding: 60px 0;
    }

    .z3420fsection-title {
        font-size: 28px;
    }

    .z3420fsection-subtitle {
        font-size: 16px;
    }

    .z3420ffeatures-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z3420ffeature-card {
        padding: 30px 20px;
    }

    /* 下载区域 */
    .z3420fdownload {
        padding: 60px 0;
    }

    .z3420fdownload-options {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z3420fdownload-card {
        padding: 30px 20px;
    }

    /* 价格套餐 */
    .z3420fpricing {
        padding: 60px 0;
    }

    .z3420fpricing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z3420fprice-card {
        padding: 30px 20px;
    }

    .z3420fprice-card.z3420ffeatured {
        transform: scale(1);
    }

    .z3420fprice {
        font-size: 36px;
    }

    /* 关于我们 */
    .z3420fabout {
        padding: 60px 0;
    }

    .z3420fabout-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .z3420fabout-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z3420fabout-text p {
        font-size: 16px;
    }

    /* 联系我们 */
    .z3420fcontact {
        padding: 60px 0;
    }

    .z3420fcontact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .z3420fcontact-info {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z3420fcontact-item {
        padding: 20px;
    }

    .z3420fcontact-form {
        padding: 30px 20px;
    }

    /* 页脚 */
    .z3420ffooter {
        padding: 60px 0 20px;
    }

    .z3420ffooter-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .z3420ffooter-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* 超小屏幕适配 */
@media (max-width: 480px) {
    .z3420fbanner-title {
        font-size: 24px;
    }

    .z3420fbanner-subtitle {
        font-size: 14px;
    }

    .z3420fsection-title {
        font-size: 24px;
    }

    .z3420flogo h1 {
        font-size: 18px;
    }

    .z3420fmain-banner {
        padding: 30px 0;
    }

    .z3420ffeatures, .z3420fdownload, .z3420fpricing, .z3420fabout, .z3420fcontact {
        padding: 40px 0;
    }
}

/* 产品特点 */
.z3420ffeatures {
    padding: 100px 0;
    background: var(--color-light);
}

.z3420fsection-header {
    text-align: center;
    margin-bottom: 60px;
}

.z3420fsection-title {
    font-size: 36px;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.z3420fsection-subtitle {
    font-size: 18px;
    color: #666666;
}

.z3420ffeatures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.z3420ffeature-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.z3420ffeature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.z3420ffeature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.z3420ffeature-icon i {
    font-size: 32px;
    color: var(--color-white);
}

.z3420ffeature-card h3 {
    color: var(--color-dark);
    margin-bottom: 15px;
    font-size: 20px;
    font-weight: 700;
}

.z3420ffeature-card p {
    color: #555555;
    line-height: 1.6;
    font-size: 15px;
}

/* 下载区域 */
.z3420fdownload {
    padding: 100px 0;
}

.z3420fdownload-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.z3420fdownload-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.z3420fdownload-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.z3420fdownload-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.z3420fdownload-icon i {
    font-size: 32px;
    color: var(--color-white);
}

.z3420fdownload-card h3 {
    color: var(--color-dark);
    margin-bottom: 10px;
    font-size: 20px;
    font-weight: 700;
}

.z3420fdownload-card p {
    color: #555555;
    margin-bottom: 15px;
    font-size: 15px;
}

.z3420fdownload-features {
    list-style: none;
    margin: 20px 0;
}

.z3420fdownload-features li {
    margin: 10px 0;
    color: #555555;
}

.z3420fdownload-btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 25px;
    transition: var(--transition);
}

.z3420fdownload-btn:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

/* 价格套餐 */
.z3420fpricing {
    padding: 100px 0;
    background: var(--color-light);
}

.z3420fpricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.z3420fprice-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.z3420fprice-card.z3420ffeatured {
    transform: scale(1.05);
    border: 2px solid var(--color-primary);
}

.z3420fpopular-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 14px;
}

.z3420fprice-header {
    margin-bottom: 30px;
}

.z3420fprice-header h3 {
    color: var(--color-dark);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.z3420fprice {
    font-size: 48px;
    color: var(--color-primary);
    margin: 20px 0;
}

.z3420fprice span {
    font-size: 16px;
    color: #666666;
}

.z3420fprice-save {
    color: #4caf50;
    font-weight: 600;
    margin-top: 10px;
    font-size: 16px;
}

.z3420ffeatures-list {
    list-style: none;
    margin: 30px 0;
}

.z3420ffeatures-list li {
    margin: 15px 0;
    color: #555555;
    display: flex;
    align-items: center;
    gap: 10px;
}

.z3420ffeatures-list li i {
    color: #4caf50;
}

.z3420fprice-btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 25px;
    transition: var(--transition);
}

.z3420fprice-btn:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

/* 关于我们 */
.z3420fabout {
    padding: 100px 0;
}

.z3420fabout-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.z3420fabout-text p {
    margin-bottom: 30px;
    color: #555555;
    font-size: 18px;
    line-height: 1.8;
}

.z3420fabout-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.z3420fabout-feature {
    text-align: center;
}

.z3420fabout-feature i {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.z3420fabout-feature h4 {
    margin-bottom: 10px;
    color: var(--color-primary);
}

.z3420fabout-feature p {
    color: #555555;
    font-size: 16px;
}

.z3420fabout-image {
    position: relative;
}

.z3420fimage-placeholder {
    width: 100%;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.z3420fimage-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.1;
}

/* 联系我们 */
.z3420fcontact {
    padding: 100px 0;
    background: var(--color-light);
}

.z3420fcontact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.z3420fcontact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.z3420fcontact-item {
    text-align: center;
    padding: 30px;
    background: var(--color-white);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.z3420fcontact-item i {
    font-size: 32px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.z3420fcontact-item h3 {
    margin-bottom: 15px;
    color: var(--color-primary);
}

.z3420fcontact-item p {
    color: #555555;
    margin: 5px 0;
}

.z3420fcontact-form {
    background: var(--color-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.z3420fform-group {
    margin-bottom: 20px;
}

.z3420fform-group input,
.z3420fform-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    transition: var(--transition);
}

.z3420fform-group input:focus,
.z3420fform-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.z3420fform-group textarea {
    height: 150px;
    resize: vertical;
}

.z3420fsubmit-btn {
    width: 100%;
    padding: 12px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.z3420fsubmit-btn:hover {
    background: var(--color-secondary);
}

/* 页脚 */
.z3420ffooter {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 80px 0 20px;
}

.z3420ffooter-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.z3420ffooter-section h4 {
    margin-bottom: 20px;
    font-size: 18px;
}

.z3420ffooter-section p {
    margin-bottom: 20px;
    opacity: 0.8;
}

.z3420fsocial-links {
    display: flex;
    gap: 15px;
}

.z3420fsocial-link {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    text-decoration: none;
    transition: var(--transition);
}

.z3420fsocial-link:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.z3420ffooter-section ul {
    list-style: none;
}

.z3420ffooter-section ul li {
    margin-bottom: 10px;
}

.z3420ffooter-section ul li a {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.z3420ffooter-section ul li a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.z3420fqr-code {
    text-align: center;
}

.z3420fqr-placeholder {
    width: 120px;
    height: 120px;
    background: var(--color-white);
    margin: 0 auto 10px;
    border-radius: 8px;
}

.z3420ffooter-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.z3420ffooter-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
}

.z3420ffooter-links a {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.z3420ffooter-links a:hover {
    opacity: 1;
    color: var(--color-accent);
}

/* 友情链接 */
.z3420ffriend-links {
    background: var(--color-light);
    padding: 40px 0;
}

.z3420ffriend-links h4 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.z3420ffriend-links ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    list-style: none;
}

.z3420ffriend-links a {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    padding: 5px 10px;
}

.z3420ffriend-links a:hover {
    color: var(--color-primary);
}

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

.z3420ffeature-card,
.z3420fdownload-card,
.z3420fprice-card,
.z3420fcontact-item {
    animation: fadeIn 0.6s ease-out forwards;
}

/* 滚动动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}