/* 基础重置 */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Arial', sans-serif;
    background: linear-gradient(135deg, #e0e7ff 0%, #f8fafc 100%);
    color: #222;
    min-height: 100vh;
}
.z3f6b6container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航栏 */
.z3f6b6header {
    background: #fff;
    box-shadow: 0 2px 8px rgba(7,94,84,0.08);
    position: relative;
    top: 0;
    z-index: 100;
}
.z3f6b6header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.z3f6b6logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.z3f6b6logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: #128c7e;
    letter-spacing: 2px;
}
.z3f6b6main-nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
}
.z3f6b6main-nav a {
    color: #222;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.2s;
}
.z3f6b6main-nav a:hover {
    color: #25d366;
}

/* 主横幅 */
.z3f6b6hero {
    background: linear-gradient(120deg, #25d366 0%, #128c7e 100%);
    color: #fff;
    padding: 60px 0 40px 0;
    position: relative;
    overflow: hidden;
}
.z3f6b6hero-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.z3f6b6hero-content {
    max-width: 600px;
}
.z3f6b6hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 18px;
    font-weight: 700;
}
.z3f6b6subtitle {
    font-size: 1.2rem;
    margin-bottom: 10px;
}
.z3f6b6cta-text {
    font-size: 1.1rem;
    margin-bottom: 24px;
}
.z3f6b6cta-buttons {
    display: flex;
    gap: 18px;
    margin-bottom: 18px;
}
.z3f6b6btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-size: 1.05rem;
    font-weight: bold;
    text-decoration: none;
    background: #fff;
    color: #128c7e;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: background 0.2s, color 0.2s;
    border: none;
    cursor: pointer;
}
.z3f6b6btn.z3f6b6android { color: #128c7e; }
.z3f6b6btn.z3f6b6ios { color: #075e54; }
.z3f6b6btn.z3f6b6web { color: #25d366; }
.z3f6b6btn:hover {
    background: #25d366;
    color: #fff;
}
.z3f6b6qr-code {
    background: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
}
.z3f6b6hero-img {
    width: 100%;
    max-width: 480px;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(37,211,102,0.18);
    display: block;
    margin-left: 0;
    margin-right: 0;
}

/* 关于我们 */
.z3f6b6about {
    background: #fff;
    padding: 56px 0 36px 0;
}
.z3f6b6about-content-flex {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.z3f6b6about-stats-row {
    display: flex;
    flex-direction: row;
    justify-content: stretch;
    align-items: stretch;
    gap: 10px;
    margin-top: 8px;
}
.z3f6b6about-text {
    flex: 2;
    font-size: 1.08rem;
    color: #333;
    line-height: 1.8;
}
.z3f6b6about-stats {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-width: 160px;
}
.z3f6b6stat-item {
    background: #e0f7ef;
    border-radius: 12px;
    text-align: center;
    padding: 18px 0 10px 0;
    box-shadow: 0 2px 8px rgba(18,140,126,0.07);
}
.z3f6b6stat-item h3 {
    font-size: 2rem;
    color: #128c7e;
    margin-bottom: 6px;
}
.z3f6b6stat-item p {
    color: #075e54;
    font-size: 1rem;
}
.z3f6b6about-stats-row .z3f6b6stat-item {
    flex: 1 1 0;
    min-width: 0;
    height: 90px;
    padding: 10px 4px;
    font-size: 0.98rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* 核心优势 */
.z3f6b6features {
    background: #f4f8fb;
    padding: 56px 0 36px 0;
}
.z3f6b6feature-grid {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.z3f6b6feature-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(37,211,102,0.07);
    padding: 32px 24px;
    flex: 1 1 220px;
    max-width: 300px;
    min-width: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}
.z3f6b6feature-card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 32px rgba(37,211,102,0.13);
}
.z3f6b6feature-icon {
    margin-bottom: 16px;
}
.z3f6b6feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: #128c7e;
}
.z3f6b6feature-card p {
    font-size: 1rem;
    color: #444;
}

/* 功能亮点 */
.z3f6b6highlights {
    background: #fff;
    padding: 56px 0 36px 0;
}
.z3f6b6highlight-grid {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.z3f6b6highlight-card {
    background: #e0f7ef;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(37,211,102,0.06);
    padding: 28px 18px;
    flex: 1 1 180px;
    max-width: 240px;
    min-width: 140px;
    text-align: center;
    font-size: 1.05rem;
    color: #075e54;
    margin: 0 8px;
}
.z3f6b6highlight-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}
.z3f6b6highlight-card p {
    color: #444;
    font-size: 0.98rem;
}

/* Business */
.z3f6b6business {
    background: #f4f8fb;
    padding: 56px 0 36px 0;
}
.z3f6b6business-content-flex {
    display: flex;
    align-items: flex-start;
    gap: 48px;
    flex-wrap: wrap;
}
.z3f6b6business-text {
    flex: 2;
    font-size: 1.08rem;
    color: #333;
    line-height: 1.8;
}
.z3f6b6business-text ul {
    margin-top: 10px;
    margin-left: 18px;
    color: #128c7e;
}
.z3f6b6business-cta {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.z3f6b6btn.z3f6b6business {
    background: #25d366;
    color: #fff;
    font-size: 1.1rem;
    padding: 14px 36px;
    margin-top: 18px;
}
.z3f6b6btn.z3f6b6business:hover {
    background: #128c7e;
    color: #fff;
}

/* FAQ */
.z3f6b6faq {
    background: #fff;
    padding: 56px 0 36px 0;
}
.z3f6b6faq-grid {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.z3f6b6faq-item {
    background: #f4f8fb;
    border-radius: 10px;
    margin-bottom: 18px;
    padding: 22px 18px;
    box-shadow: 0 1px 4px rgba(18,140,126,0.05);
    flex: 1 1 220px;
    max-width: 320px;
    min-width: 160px;
}
.z3f6b6faq-item h3 {
    font-size: 1.1rem;
    color: #128c7e;
    margin-bottom: 8px;
}
.z3f6b6faq-item p {
    color: #444;
    font-size: 0.98rem;
}

/* 下载流程 */
.z3f6b6download {
    background: #e0f7ef;
    padding: 56px 0 36px 0;
}
.z3f6b6download-steps {
    display: flex;
    gap: 32px;
    justify-content: center;
    margin-bottom: 18px;
}
.z3f6b6step {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(37,211,102,0.06);
    padding: 24px 18px;
    text-align: center;
    min-width: 120px;
    max-width: 180px;
    flex: 1 1 120px;
}
.z3f6b6step-number {
    display: inline-block;
    background: #25d366;
    color: #fff;
    font-weight: bold;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    line-height: 32px;
    font-size: 1.2rem;
    margin-bottom: 10px;
}
.z3f6b6social-proof {
    text-align: center;
    color: #128c7e;
    font-size: 1.05rem;
    margin-top: 10px;
}

/* 页脚 */
.z3f6b6footer {
    background: #075e54;
    color: #fff;
    text-align: center;
    padding: 32px 0 20px 0;
    font-size: 1rem;
    margin-top: 0;
    box-shadow: 0 -2px 8px rgba(7,94,84,0.08);
}
.z3f6b6footer-flex {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.z3f6b6footer-info {
    flex: 1;
}
.z3f6b6store-badges {
    display: flex;
    gap: 18px;
    margin-top: 16px;
    justify-content: center;
}

/* 响应式设计 */
@media (max-width: 900px) {
    .z3f6b6header, .z3f6b6main-nav {
        position: relative;
    }
    .z3f6b6header-flex, .z3f6b6about-content-flex, .z3f6b6business-content-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        height: auto;
    }
    .z3f6b6hero-flex {
        flex-direction: column;
        text-align: center;
    }
    .z3f6b6qr-code {
        margin: 32px auto 0 auto;
    }
    .z3f6b6feature-grid, .z3f6b6highlight-grid, .z3f6b6faq-grid, .z3f6b6download-steps {
        flex-direction: column;
        align-items: center;
    }
    .z3f6b6about-stats-row {
        flex-direction: column;
        gap: 18px;
        align-items: stretch;
    }
    .z3f6b6hero-img {
        margin: 0 auto;
        max-width: 98vw;
    }
    .z3f6b6main-nav ul {
        display: flex !important;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        position: static;
        background: #fff;
        box-shadow: none;
        border-radius: 0;
        min-width: 0;
        z-index: auto;
        padding: 0;
        border-top: none;
        max-height: none;
        overflow: visible;
        transition: none;
    }
    .z3f6b6main-nav li {
        margin: 0 10px;
        text-align: center;
        padding: 0 0;
        font-size: 1rem;
    }
    .z3f6b6main-nav li:last-child {
        margin-bottom: 0;
    }
    .z3f6b6nav-toggle {
        display: none !important;
    }
}
@media (min-width: 901px) {
    .z3f6b6hero-flex {
        align-items: center;
        justify-content: space-between;
    }
    .z3f6b6hero-content {
        flex: 1 1 0;
        min-width: 0;
        max-width: 54%;
    }
    .z3f6b6qr-code {
        flex: 0 0 40%;
        max-width: 40%;
        min-width: 280px;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        margin-left: 40px;
    }
    .z3f6b6hero-img {
        width: 100%;
        height: auto;
        max-width: 480px;
        border-radius: 24px;
        box-shadow: 0 8px 32px rgba(37,211,102,0.18);
        display: block;
        margin: 0;
        object-fit: contain;
    }
    .z3f6b6nav-toggle {
        display: none !important;
    }
    .z3f6b6main-nav ul {
        display: flex !important;
        position: static;
        background: none;
        box-shadow: none;
        border-radius: 0;
        flex-direction: row;
        min-width: 0;
        padding: 0;
    }
    .z3f6b6main-nav li {
        margin: 0;
        padding: 0;
        text-align: left;
    }
}
@media (max-width: 600px) {
    .z3f6b6container {
        padding: 0 8px;
    }
    .z3f6b6main-nav ul {
        gap: 12px;
    }
    .z3f6b6logo-text {
        font-size: 1.1rem;
    }
    .z3f6b6hero-content h1 {
        font-size: 1.3rem;
    }
    .z3f6b6about, .z3f6b6features, .z3f6b6highlights, .z3f6b6business, .z3f6b6faq, .z3f6b6download {
        padding: 24px 0 16px 0;
    }
    .z3f6b6card, .z3f6b6platform-card, .z3f6b6feature-card, .z3f6b6highlight-card, .z3f6b6faq-item, .z3f6b6step {
        width: 100%;
        max-width: 98vw;
        min-width: 0;
        margin: 0 0 18px 0;
        border-radius: 18px;
        box-shadow: 0 4px 18px rgba(37,211,102,0.10);
        padding: 18px 10px;
        background: #fff;
        text-align: center;
    }
    .z3f6b6platform-card .z3f6b6btn,
    .z3f6b6card .z3f6b6btn,
    .z3f6b6feature-card .z3f6b6btn,
    .z3f6b6highlight-card .z3f6b6btn {
        width: 100%;
        font-size: 1.1rem;
        border-radius: 24px;
        margin-top: 12px;
        padding: 12px 0;
    }
    .z3f6b6card h3, .z3f6b6platform-card h3, .z3f6b6feature-card h3, .z3f6b6highlight-card h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    .z3f6b6card p, .z3f6b6platform-card p, .z3f6b6feature-card p, .z3f6b6highlight-card p {
        font-size: 0.98rem;
        color: #444;
    }
    .z3f6b6download-platforms, .z3f6b6card-grid, .z3f6b6feature-grid, .z3f6b6highlight-grid, .z3f6b6faq-grid {
        gap: 0;
    }
    .z3f6b6about-stats-row {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: stretch;
        gap: 10px;
        margin-top: 8px;
    }
    .z3f6b6about-stats-row .z3f6b6stat-item {
        min-width: 80px;
        max-width: 110px;
        flex: 1 1 80px;
        height: 90px;
        padding: 10px 4px;
        font-size: 0.98rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .z3f6b6about-stats-row .z3f6b6stat-item h3 {
        font-size: 1.1rem;
        margin-bottom: 4px;
    }
    .z3f6b6about-stats-row .z3f6b6stat-item p {
        font-size: 0.92rem;
    }
    .z3f6b6store-badges {
        gap: 8px;
    }
}

.z3f6b6download-section {
    background: #f4f8fb;
    padding: 56px 0 36px 0;
}
.z3f6b6download-section h2 {
    text-align: center;
    color: #128c7e;
    margin-bottom: 32px;
    font-size: 2rem;
}
.z3f6b6download-platforms {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.z3f6b6platform-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(37,211,102,0.07);
    padding: 32px 24px;
    flex: 1 1 200px;
    max-width: 240px;
    min-width: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-bottom: 12px;
}
.z3f6b6platform-card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 32px rgba(37,211,102,0.13);
}
.z3f6b6platform-icon {
    font-size: 2.2rem;
    margin-bottom: 14px;
}
.z3f6b6platform-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: #128c7e;
}
.z3f6b6platform-card p {
    font-size: 1rem;
    color: #444;
    margin-bottom: 18px;
}
.z3f6b6platform-card .z3f6b6btn {
    width: 100%;
    font-size: 1rem;
    padding: 10px 0;
}
.z3f6b6platform-card .z3f6b6btn.z3f6b6android {
    background: linear-gradient(90deg, #25d366 0%, #128c7e 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(37,211,102,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
}
.z3f6b6platform-card .z3f6b6btn.z3f6b6ios {
    background: linear-gradient(90deg, #f953c6 0%, #b91d73 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(249,83,198,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
}
.z3f6b6platform-card .z3f6b6btn.z3f6b6web {
    background: linear-gradient(90deg, #43cea2 0%, #185a9d 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(67,206,162,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
}
.z3f6b6platform-card .z3f6b6btn {
    background: linear-gradient(90deg, #25d366 0%, #128c7e 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(37,211,102,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.z3f6b6platform-card .z3f6b6btn:hover {
    filter: brightness(1.15) saturate(1.2);
    box-shadow: 0 8px 32px rgba(37,211,102,0.25);
    transform: translateY(-2px) scale(1.04);
}
@media (max-width: 900px) {
    .z3f6b6download-platforms {
        flex-direction: column;
        align-items: center;
        gap: 18px;
    }
    .z3f6b6platform-card {
        max-width: 100%;
        min-width: 0;
    }
}

/* 横幅按钮彩色 */
.z3f6b6cta-buttons .z3f6b6btn.z3f6b6android {
    background: linear-gradient(90deg, #25d366 0%, #128c7e 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(37,211,102,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
}
.z3f6b6cta-buttons .z3f6b6btn.z3f6b6ios {
    background: linear-gradient(90deg, #f953c6 0%, #b91d73 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(249,83,198,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
}
.z3f6b6cta-buttons .z3f6b6btn.z3f6b6web {
    background: linear-gradient(90deg, #43cea2 0%, #185a9d 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(67,206,162,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
}
.z3f6b6cta-buttons .z3f6b6btn {
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.z3f6b6cta-buttons .z3f6b6btn:hover {
    filter: brightness(1.15) saturate(1.2);
    box-shadow: 0 8px 32px rgba(37,211,102,0.25);
    transform: translateY(-2px) scale(1.04);
}

/* 下载流程按钮（如有） */
.z3f6b6download-steps .z3f6b6btn {
    background: linear-gradient(90deg, #25d366 0%, #128c7e 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(37,211,102,0.18);
    border-radius: 32px;
    font-weight: bold;
    letter-spacing: 1px;
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.z3f6b6download-steps .z3f6b6btn:hover {
    filter: brightness(1.15) saturate(1.2);
    box-shadow: 0 8px 32px rgba(37,211,102,0.25);
    transform: translateY(-2px) scale(1.04);
}