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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 头部导航 */
.header {
    background: transparent;
    box-shadow: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    border-radius: 50%;
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #0d6efd;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #666;
    font-size: 16px;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #0d6efd;
}

.nav-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.btn-outline {
    background: transparent;
    border: 1px solid #0d6efd;
    color: #0d6efd;
}

.btn-outline:hover {
    background: #0d6efd;
    color: #fff;
}

.btn-primary {
    background: #0d6efd;
    color: #fff;
}

.btn-primary:hover {
    background: #0a58ca;
}

/* 英雄区 */
.hero {
    position: relative;
    padding: 140px 0 400px;
    background-size: cover;
    background-position: center;
    text-align: center;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 52px;
    font-weight: bold;
    color: #0d6efd;
    margin-bottom: 20px;
}

.brand {
    color: #0d6efd;
}

.hero-subtitle {
    font-size: 16px;
    color: #666;
    max-width: 800px;
    margin: 0 auto 40px;
}

.btn-cta {
    padding: 15px 60px;
    font-size: 18px;
    background: #0d6efd;
    color: #fff;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
}

.btn-cta:hover {
    background: #0a58ca;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 110, 253, 0.4);
}


/* Telegram浮动按钮 */
.telegram-float {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    background: #0088cc;
    color: #fff;
    padding: 15px 25px;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 136, 204, 0.4);
    z-index: 999;
    transition: all 0.3s;
    white-space: nowrap; /* 防止文字换行 */
}

.telegram-float:hover {
    transform: translateY(-50%) scale(1.05);
}

/* 区块标题 */
.section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 60px;
    color: #333;
}

/* 产品展示区 */
.products {
    padding: 80px 0;
    background: #fff;
}

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

.product-grid .product-card:nth-child(4),
.product-grid .product-card:nth-child(5) {
    grid-column: span 1;
}

.product-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
    transition: transform 0.3s;
}

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

.product-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.6));
}

.product-number {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 48px;
    font-weight: bold;
    color: rgba(255,255,255,0.3);
    z-index: 2;
}

.product-title {
    position: absolute;
    bottom: 20px;
    left: 20px;
    color: #fff;
    font-size: 18px;
    z-index: 2;
}

/* 客户端下载区 */
.downloads {
    padding: 80px 0;
    background: #f8f9fa;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.download-item {
    cursor: pointer;
    transition: transform 0.3s;
}

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

.download-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.download-icon::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
}

.macos {
    background: #000;
}

.macos::after {
    content: 'OS';
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.windows {
    background: #0078D4;
}

.windows::after {
    content: '';
    width: 40px;
    height: 40px;
    background: linear-gradient(to right, #fff 0%, #fff 45%, transparent 45%, transparent 55%, #fff 55%, #fff 100%),
                linear-gradient(to bottom, #fff 0%, #fff 45%, transparent 45%, transparent 55%, #fff 55%, #fff 100%);
}

.android {
    background: #3DDC84;
}

.android::after {
    content: '';
    width: 35px;
    height: 40px;
    background: #fff;
    border-radius: 10px 10px 0 0;
}

.app {
    background: #FFB800;
}

.app::after {
    content: '';
    width: 40px;
    height: 40px;
    background: #fff;
    border-radius: 8px;
}

/* 产品优势区 */
.features {
    padding: 80px 0;
    background: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    width: 50%;
    height: 50%;
}

.security {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.security::before {
    border: 3px solid #fff;
    border-radius: 50%;
}

.stable {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stable::before {
    width: 30px;
    height: 30px;
    background: #fff;
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
}

.fast {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.fast::before {
    width: 35px;
    height: 35px;
    background: #fff;
    border-radius: 5px;
}

.support {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.support::before {
    width: 30px;
    height: 30px;
    background: #fff;
    border-radius: 50%;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 用户反馈区 */
.testimonials {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.testimonial-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
}

.stars {
    color: #ffc107;
    font-size: 14px;
}

.testimonial-text {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

/* CTA召唤区 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    text-align: center;
}

.cta-title {
    font-size: 40px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 40px;
}

.btn-white {
    background: #fff;
    color: #0d6efd;
    padding: 15px 60px;
    font-size: 18px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* 页脚 */
.footer {
    background: #1a2332;
    color: #8a94a6;
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 40px;
}

.footer-column h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #8a94a6;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-qr {
    display: flex;
    gap: 40px;
    justify-content: center;
    padding: 40px 0;
}

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

.qr-code img {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    background: #fff;
    padding: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    margin: 5px 0;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

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

    .product-grid,
    .features-grid,
    .download-grid,
    .testimonials-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .social-icons {
        gap: 20px;
        margin-top: 60px;
    }

    .social-icon img {
        height: 28px;
    }

    .telegram-float {
        display: none;
    }
}* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 头部导航 */
.header {
    background: transparent;
    box-shadow: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    border-radius: 50%;
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #0d6efd;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #666;
    font-size: 15px;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #0d6efd;
}

.nav-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.btn-outline {
    background: transparent;
    border: 1px solid #0d6efd;
    color: #0d6efd;
}

.btn-outline:hover {
    background: #0d6efd;
    color: #fff;
}

.btn-primary {
    background: #0d6efd;
    color: #fff;
}

.btn-primary:hover {
    background: #0a58ca;
}

/* 英雄区 */
.hero {
    position: relative;
    padding: 140px 0 400px;
    background-size: cover;
    background-position: center;
    text-align: center;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 52px;
    font-weight: bold;
    color: #0d6efd;
    margin-bottom: 20px;
}

.brand {
    color: #0d6efd;
}

.hero-subtitle {
    font-size: 16px;
    color: #666;
    max-width: 800px;
    margin: 0 auto 40px;
}

.btn-cta {
    padding: 15px 60px;
    font-size: 18px;
    background: #0d6efd;
    color: #fff;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
}

.btn-cta:hover {
    background: #0a58ca;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 110, 253, 0.4);
}


/* Telegram浮动按钮 */
.telegram-float {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    background: #0088cc;
    color: #fff;
    padding: 15px 25px;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 136, 204, 0.4);
    z-index: 999;
    transition: all 0.3s;
    white-space: nowrap; /* 防止文字换行 */
}

.telegram-float:hover {
    transform: translateY(-50%) scale(1.05);
}

/* 区块标题 */
.section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 60px;
    color: #333;
}

/* 产品展示区 */
.products {
    padding: 80px 0;
    background: #fff;
}

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

.product-grid .product-card:nth-child(4),
.product-grid .product-card:nth-child(5) {
    grid-column: span 1;
}

.product-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
    transition: transform 0.3s;
}

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

.product-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.6));
}

.product-number {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 48px;
    font-weight: bold;
    color: rgba(255,255,255,0.3);
    z-index: 2;
}

.product-title {
    position: absolute;
    bottom: 20px;
    left: 20px;
    color: #fff;
    font-size: 18px;
    z-index: 2;
}

/* 客户端下载区 */
.downloads {
    padding: 80px 0;
    background: #f8f9fa;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.download-item {
    cursor: pointer;
    transition: transform 0.3s;
}

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

.download-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.download-icon::after {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
}

.macos {
    background: #000;
}

.macos::after {
    content: 'OS';
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

.windows {
    background: #0078D4;
}

.windows::after {
    content: '';
    width: 40px;
    height: 40px;
    background: linear-gradient(to right, #fff 0%, #fff 45%, transparent 45%, transparent 55%, #fff 55%, #fff 100%),
                linear-gradient(to bottom, #fff 0%, #fff 45%, transparent 45%, transparent 55%, #fff 55%, #fff 100%);
}

.android {
    background: #3DDC84;
}

.android::after {
    content: '';
    width: 35px;
    height: 40px;
    background: #fff;
    border-radius: 10px 10px 0 0;
}

.app {
    background: #FFB800;
}

.app::after {
    content: '';
    width: 40px;
    height: 40px;
    background: #fff;
    border-radius: 8px;
}

/* 产品优势区 */
.features {
    padding: 80px 0;
    background: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    width: 50%;
    height: 50%;
}

.security {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.security::before {
    border: 3px solid #fff;
    border-radius: 50%;
}

.stable {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stable::before {
    width: 30px;
    height: 30px;
    background: #fff;
    clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
}

.fast {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.fast::before {
    width: 35px;
    height: 35px;
    background: #fff;
    border-radius: 5px;
}

.support {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.support::before {
    width: 30px;
    height: 30px;
    background: #fff;
    border-radius: 50%;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 用户反馈区 */
.testimonials {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.testimonial-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
}

.stars {
    color: #ffc107;
    font-size: 14px;
}

.testimonial-text {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

/* CTA召唤区 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    text-align: center;
}

.cta-title {
    font-size: 40px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 40px;
}

.btn-white {
    background: #fff;
    color: #0d6efd;
    padding: 15px 60px;
    font-size: 18px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* 页脚 */
.footer {
    background: #1a2332;
    color: #8a94a6;
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 40px;
}

.footer-column h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #8a94a6;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-qr {
    display: flex;
    gap: 40px;
    justify-content: center;
    padding: 40px 0;
}

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

.qr-code img {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    background: #fff;
    padding: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    margin: 5px 0;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

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

    .product-grid,
    .features-grid,
    .download-grid,
    .testimonials-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .social-icons {
        gap: 20px;
        margin-top: 60px;
    }

    .social-icon img {
        height: 28px;
    }

    .telegram-float {
        display: none;
    }
}
/* 移除下载区域链接的下划线 */
.download-item {
    text-decoration: none;
}

/* （可选）为了更好的用户体验，可以设置鼠标悬停时的效果 */
.download-item:hover {
    /* 例如，可以改变背景颜色来提示用户这里可以点击 */
    background-color: #f0f0f0; 
}
/* 确保 .btn-cta 链接没有下划线 */
.btn-cta {
    text-decoration: none;
}