/* WhatsApp主题绿色 */
:root {
    --primary-color: #25D366;
    --secondary-color: #075E54;
    --background: #f4f4f4;
    --text-color: #222;
    --white: #fff;
}

body {
    margin: 0;
    font-family: 'Segoe UI', 'Arial', sans-serif;
    background: var(--background);
    color: var(--text-color);
    line-height: 1.6;
    padding-top: 80px; /* 为固定导航栏留出空间 */
}
.z9d86acontainer {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}
.z9d86asite-header {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.5em 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.z9d86asite-header .z9d86acontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.z9d86alogo {
    font-size: 2em;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
}

.z9d86amain-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5em;
}

.z9d86amain-nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    padding: 0.5em 0;
    display: block;
}

.z9d86amain-nav a:hover {
    color: var(--primary-color);
}

/* 汉堡菜单按钮 */
.z9d86amenu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5em;
    cursor: pointer;
    padding: 0.5em;
}

.z9d86amenu-toggle:hover {
    color: var(--primary-color);
}
.z9d86ahero {
    background: linear-gradient(90deg, var(--primary-color) 60%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 2.5em 0 1.5em 0;
}
.z9d86ahero-content {
    display: flex;
    align-items: center;
    gap: 2em;
}
.z9d86ahero-text {
    flex: 1;
    text-align: left;
}
.z9d86ahero-image {
    flex: 1;
    text-align: center;
}
.z9d86ahero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    animation: float 3s ease-in-out infinite;
    transition: transform 0.3s ease;
}

.z9d86ahero-image img:hover {
    transform: scale(1.05) rotate(2deg);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}
.z9d86ahero h2 {
    font-size: 2.2em;
    margin-bottom: 0.5em;
}
.z9d86adownload, .z9d86aweb, .z9d86afeatures, .z9d86afaq {
    background: var(--white);
    margin: 1.5em 0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    padding: 1.5em 1em;
}

.z9d86adownload h3, .z9d86aweb h3, .z9d86afeatures h3, .z9d86afaq h3 {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 1.5em;
    font-size: 1.8em;
}




.z9d86adownload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.2em;
    margin: 1.5em 0;
}

.z9d86adownload-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid #e9ecef;
    border-radius: 16px;
    padding: 2em 1.5em;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.z9d86adownload-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.z9d86adownload-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.2);
    border-color: var(--primary-color);
}

.z9d86aplatform-icon {
    font-size: 3em;
    margin-bottom: 1em;
}

.z9d86adownload-card h4 {
    color: var(--secondary-color);
    font-size: 1.4em;
    margin: 0.5em 0;
}

.z9d86adownload-card p {
    color: #666;
    margin: 1em 0;
    line-height: 1.6;
}

.z9d86aversion-info {
    display: flex;
    justify-content: space-between;
    margin: 1em 0;
    padding: 0.8em;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 0.9em;
}

.z9d86aversion, .z9d86asize {
    color: #555;
    font-weight: 500;
}

.z9d86adownload-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 1em 2em;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    margin: 1em 0;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.z9d86adownload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.z9d86abtn-icon {
    font-size: 1.2em;
}

.z9d86asystem-requirements {
    margin-top: 1em;
    padding-top: 1em;
    border-top: 1px solid #e9ecef;
}

.z9d86asystem-requirements small {
    color: #888;
    font-size: 0.85em;
}

.z9d86adownload-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5em;
    margin-top: 3em;
    padding: 2em;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
}

.z9d86afeature-item {
    display: flex;
    align-items: center;
    gap: 1em;
    padding: 1em;
}

.z9d86afeature-icon {
    font-size: 2em;
    flex-shrink: 0;
}

.z9d86afeature-text h5 {
    color: var(--secondary-color);
    margin: 0 0 0.3em 0;
    font-size: 1.1em;
}

.z9d86afeature-text p {
    margin: 0;
    color: #666;
    font-size: 0.9em;
}

/* WhatsApp网页版样式 */
.z9d86aweb-content {
    margin: 2em 0;
}



.z9d86aweb-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2em;
    margin: 2em 0;
}

.z9d86aweb-feature {
    background: var(--white);
    padding: 2em 1.5em;
    border-radius: 12px;
    text-align: center;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.z9d86aweb-feature:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.15);
}

.z9d86aweb-feature .z9d86afeature-icon {
    font-size: 2.5em;
    margin-bottom: 1em;
}

.z9d86aweb-feature h5 {
    color: var(--secondary-color);
    font-size: 1.2em;
    margin: 0.5em 0;
}

.z9d86aweb-feature p {
    color: #666;
    margin: 0;
    line-height: 1.6;
}

.z9d86aweb-access {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1.5em;
    align-items: center;
    margin: 2em 0;
    padding: 1.5em;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 16px;
    color: var(--white);
}

.z9d86aaccess-info h4 {
    margin: 0 0 1em 0;
    font-size: 1.4em;
}

.z9d86abrowser-list {
    display: flex;
    gap: 1em;
    margin-bottom: 1em;
    flex-wrap: wrap;
}

.z9d86abrowser-item {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5em 1em;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
}

.z9d86aaccess-note {
    margin: 0;
    font-size: 0.9em;
    opacity: 0.9;
}

.z9d86aaccess-button {
    text-align: center;
}

.z9d86aweb-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8em;
    background: var(--white);
    color: var(--secondary-color);
    padding: 1.2em 2em;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.z9d86aweb-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.z9d86abtn-arrow {
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.z9d86aweb-btn:hover .z9d86abtn-arrow {
    transform: translateX(5px);
}

.z9d86abtn-desc {
    margin: 0.5em 0 0 0;
    font-size: 0.9em;
    opacity: 0.9;
}

.z9d86aweb-steps {
    margin-top: 2em;
}

.z9d86aweb-steps h4 {
    text-align: center;
    color: var(--secondary-color);
    font-size: 1.6em;
    margin-bottom: 2em;
}

.z9d86asteps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5em;
}

.z9d86astep-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5em;
    padding: 1.5em;
    background: var(--white);
    border-radius: 12px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.z9d86astep-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.1);
}

.z9d86astep-number {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2em;
    flex-shrink: 0;
}

.z9d86astep-content h5 {
    color: var(--secondary-color);
    margin: 0 0 0.5em 0;
    font-size: 1.1em;
}

.z9d86astep-content p {
    margin: 0;
    color: #666;
    line-height: 1.6;
}

/* 功能亮点样式 */
.z9d86afeatures-content {
    margin: 2em 0;
}



.z9d86afeatures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5em;
    margin: 2em 0;
}

.z9d86afeature-card {
    background: var(--white);
    border-radius: 16px;
    padding: 2em;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.z9d86afeature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.z9d86afeature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(37, 211, 102, 0.15);
    border-color: var(--primary-color);
}

.z9d86acard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5em;
}

.z9d86afeature-icon {
    font-size: 2.5em;
}

.z9d86afeature-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 0.3em 0.8em;
    border-radius: 15px;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
}

.z9d86afeature-card h5 {
    color: var(--secondary-color);
    font-size: 1.3em;
    margin: 0 0 1em 0;
}

.z9d86afeature-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5em;
}

.z9d86afeature-details {
    display: flex;
    gap: 0.5em;
    flex-wrap: wrap;
}

.z9d86adetail-item {
    background: #f8f9fa;
    color: var(--secondary-color);
    padding: 0.3em 0.8em;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 500;
    border: 1px solid #e9ecef;
}

.z9d86afeatures-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1em;
    margin-top: 2em;
    padding: 1.5em;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 12px;
    color: var(--white);
}

.z9d86astat-card {
    text-align: center;
    padding: 1em 0.5em;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.z9d86astat-icon {
    font-size: 2em;
    margin-bottom: 0.3em;
}

.z9d86astat-number {
    font-size: 1.8em;
    font-weight: bold;
    margin-bottom: 0.2em;
}

.z9d86astat-label {
    font-size: 0.8em;
    opacity: 0.9;
}

/* 常见问题样式 */
.z9d86afaq-content {
    margin: 2em 0;
}



.z9d86afaq-categories {
    margin-bottom: 1em;
}

.z9d86acategory-tabs {
    display: flex;
    gap: 1em;
    justify-content: center;
    flex-wrap: wrap;
}

.z9d86atab-btn {
    background: var(--white);
    border: 2px solid #e9ecef;
    color: #666;
    padding: 0.8em 1.5em;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.95em;
}

.z9d86atab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.z9d86atab-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-color: var(--primary-color);
}

.z9d86afaq-grid {
    display: grid;
    gap: 1em;
    margin: 1em 0;
}

.z9d86afaq-item {
    background: var(--white);
    border-radius: 12px;
    border: 2px solid #e9ecef;
    overflow: hidden;
    transition: all 0.3s ease;
}

.z9d86afaq-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.1);
}

.z9d86afaq-question {
    display: flex;
    align-items: center;
    gap: 1em;
    padding: 1.5em;
    cursor: pointer;
    transition: background 0.3s ease;
}

.z9d86afaq-question:hover {
    background: #f8f9fa;
}

.z9d86aquestion-icon {
    font-size: 1.5em;
    flex-shrink: 0;
}

.z9d86aquestion-content {
    flex: 1;
}

.z9d86aquestion-content h5 {
    color: var(--secondary-color);
    margin: 0 0 0.3em 0;
    font-size: 1.1em;
}

.z9d86aquestion-content p {
    margin: 0;
    color: #666;
    font-size: 0.9em;
}

.z9d86aquestion-arrow {
    color: var(--primary-color);
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.z9d86afaq-item.active .z9d86aquestion-arrow {
    transform: rotate(180deg);
}

.z9d86afaq-answer {
    padding: 0 1.5em 1.5em;
    display: none;
    border-top: 1px solid #e9ecef;
    margin-top: 0.5em;
    padding-top: 1.5em;
}

.z9d86afaq-item.active .z9d86afaq-answer {
    display: block;
}

.z9d86afaq-answer p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1em;
}

.z9d86afaq-answer ul {
    margin: 1em 0;
    padding-left: 1.5em;
}

.z9d86afaq-answer li {
    margin-bottom: 0.5em;
    color: #666;
}

.z9d86aanswer-features {
    display: flex;
    gap: 0.5em;
    flex-wrap: wrap;
    margin-top: 1em;
}

.z9d86afeature-tag {
    background: #f8f9fa;
    color: var(--secondary-color);
    padding: 0.3em 0.8em;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 500;
    border: 1px solid #e9ecef;
}

.z9d86adevice-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1em;
    margin-top: 1em;
}

.z9d86adevice-category {
    background: #f8f9fa;
    padding: 1em;
    border-radius: 8px;
    text-align: center;
}

.z9d86adevice-category h6 {
    color: var(--secondary-color);
    margin: 0 0 0.5em 0;
    font-size: 1em;
}

.z9d86adevice-category p {
    margin: 0;
    color: #666;
    font-size: 0.9em;
}

.z9d86afile-info {
    background: #f8f9fa;
    padding: 1em;
    border-radius: 8px;
    margin-top: 1em;
}

.z9d86afile-limit {
    margin-bottom: 1em;
    color: #666;
}

.z9d86afile-types {
    display: flex;
    gap: 0.5em;
    flex-wrap: wrap;
    align-items: center;
}

.z9d86afile-tag {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.2em 0.6em;
    border-radius: 8px;
    font-size: 0.8em;
    font-weight: 500;
}

.z9d86afaq-contact {
    margin-top: 1em;
    text-align: center;
    padding: 1em;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 8px;
    color: var(--white);
}

.z9d86acontact-icon {
    font-size: 2em;
    margin-bottom: 0.5em;
}

.z9d86afaq-contact h4 {
    margin: 0 0 0.5em 0;
    font-size: 1.1em;
}

.z9d86afaq-contact p {
    margin: 0 0 0.8em 0;
    opacity: 0.9;
    max-width: 350px;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.9em;
    line-height: 1.4;
}

.z9d86acontact-btn {
    display: inline-block;
    background: var(--white);
    color: var(--secondary-color);
    padding: 0.5em 1.2em;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9em;
    transition: all 0.3s ease;
}

.z9d86acontact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.z9d86abtn {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.7em 1.5em;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
    display: inline-block;
}
.z9d86abtn:hover {
    background: var(--secondary-color);
}
.z9d86afeature-list {
    list-style: disc inside;
    padding-left: 1em;
}
.z9d86afaq dl {
    margin: 0;
}
.z9d86afaq dt {
    font-weight: bold;
    margin-top: 1em;
}
.z9d86afaq dd {
    margin-left: 1em;
    margin-bottom: 0.5em;
}

.z9d86asite-footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 2em 0;
    margin-top: 1.5em;
}

.z9d86afooter-links {
    margin-bottom: 1.5em;
    text-align: center;
}

.z9d86afooter-links h4 {
    color: var(--primary-color);
    margin-bottom: 1em;
    font-size: 1.2em;
}

.z9d86afooter-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1em;
}

.z9d86afooter-links li {
    margin: 0;
}

.z9d86afooter-links a {
    color: var(--white);
    text-decoration: none;
    padding: 0.5em 1em;
    border-radius: 20px;
    background: rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.z9d86afooter-links a:hover {
    background: var(--primary-color);
    color: var(--white);
}

.z9d86afooter-info {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 1em;
}

.z9d86afooter-info p {
    margin: 0.5em 0;
    font-size: 0.9em;
}

.z9d86afooter-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.z9d86afooter-info a:hover {
    text-decoration: underline;
}
/* 平板端响应式 */
@media (max-width: 1024px) {
    .z9d86acontainer {
        padding: 0 12px;
    }
    .z9d86ahero h2 {
        font-size: 1.8em;
    }

    .z9d86adownload-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2em;
    }
    .z9d86aweb-features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2em;
    }
    .z9d86afeatures-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5em;
    }
    .z9d86afeatures-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1em;
    }
}

/* 移动端响应式 */
@media (max-width: 768px) {
    /* 显示汉堡菜单按钮 */
    .z9d86amenu-toggle {
        display: block;
    }
    
    /* 隐藏导航菜单 */
    .z9d86amain-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--secondary-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 1000;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    
    .z9d86amain-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .z9d86amain-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 1em 0;
    }
    
    .z9d86amain-nav li {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .z9d86amain-nav li:last-child {
        border-bottom: none;
    }
    
    .z9d86amain-nav a {
        padding: 1em 2em;
        text-align: center;
    }
    
    .z9d86amain-nav a:hover {
        background: rgba(255,255,255,0.1);
    }
    
    .z9d86ahero {
        padding: 2em 0 1em 0;
    }
    
    .z9d86ahero-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5em;
    }
    
    .z9d86ahero-text {
        text-align: center;
    }
    
    .z9d86ahero h2 {
        font-size: 1.4em;
    }
    
    .z9d86ahero-image img {
        max-width: 80%;
    }
    
    .z9d86acontainer {
        padding: 0 8px;
    }
    
    .z9d86adownload, .z9d86aweb, .z9d86afeatures, .z9d86afaq {
        padding: 1em 0.5em;
        margin: 1em 0;
    }
    
    .z9d86adownload-grid {
        grid-template-columns: 1fr;
        gap: 1em;
    }
    
    .z9d86adownload-card {
        padding: 1.5em 1em;
    }
    
    .z9d86aweb-features-grid {
        grid-template-columns: 1fr;
        gap: 1em;
    }
    
    .z9d86aweb-access {
        grid-template-columns: 1fr;
        gap: 1.5em;
        text-align: center;
        padding: 1.2em;
    }
    
    .z9d86abrowser-list {
        justify-content: center;
    }
    
    .z9d86asteps-grid {
        grid-template-columns: 1fr;
        gap: 1em;
    }
    
    .z9d86astep-item {
        flex-direction: column;
        text-align: center;
        gap: 1em;
    }
    
    .z9d86afeatures-grid {
        grid-template-columns: 1fr;
        gap: 1.5em;
    }
    
    .z9d86afeature-card {
        padding: 1.5em;
    }
    
    .z9d86afeatures-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8em;
        padding: 1em;
    }
    
    .z9d86astat-card {
        padding: 0.8em 0.3em;
    }
    
    .z9d86astat-number {
        font-size: 1.5em;
    }
    
    .z9d86acategory-tabs {
        flex-direction: column;
        align-items: center;
        gap: 0.5em;
    }
    
    .z9d86atab-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .z9d86afaq-question {
        flex-direction: column;
        text-align: center;
        gap: 0.5em;
    }
    
    .z9d86adevice-list {
        grid-template-columns: 1fr;
    }
    
    .z9d86afile-types {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .z9d86afaq-contact {
        padding: 0.8em;
    }
    
    .z9d86acontact-icon {
        font-size: 1.8em;
    }
    
    .z9d86acontact-btn {
        padding: 0.4em 1em;
        font-size: 0.85em;
    }
    
    .z9d86afooter-links ul {
        flex-direction: column;
        gap: 0.5em;
    }
    
    .z9d86afooter-links a {
        display: block;
        text-align: center;
    }
}

/* 小屏移动端响应式 */
@media (max-width: 480px) {
    .z9d86acontainer {
        padding: 0 6px;
    }
    
    .z9d86asite-header .z9d86acontainer {
        padding: 0 8px;
    }
    
    .z9d86alogo {
        font-size: 1.6em;
    }
    
    .z9d86amenu-toggle {
        font-size: 1.3em;
        padding: 0.3em;
    }
    
    .z9d86ahero h2 {
        font-size: 1.2em;
    }
    
    .z9d86ahero-image img {
        max-width: 90%;
    }
    
    .z9d86adownload, .z9d86aweb, .z9d86afeatures, .z9d86afaq {
        padding: 0.8em 0.3em;
        margin: 0.8em 0;
    }
    
    .z9d86adownload-card, .z9d86aweb-feature, .z9d86afeature-card {
        padding: 1em 0.8em;
    }
    
    .z9d86afeatures-stats {
        grid-template-columns: 1fr;
        gap: 0.6em;
        padding: 0.8em;
    }
    
    .z9d86astat-card {
        padding: 0.6em 0.2em;
    }
    
    .z9d86astat-number {
        font-size: 1.3em;
    }
    
    .z9d86atab-btn {
        max-width: 250px;
        padding: 0.6em 1em;
        font-size: 0.9em;
    }
    
    .z9d86afaq-question {
        padding: 1em;
    }
    
    .z9d86afaq-answer {
        padding: 0 1em 1em;
    }
    
    .z9d86aweb-btn {
        padding: 0.8em 1.5em;
        font-size: 1em;
    }
    
    .z9d86adownload-btn {
        padding: 0.8em 1.5em;
        font-size: 0.95em;
    }
    
    .z9d86acontact-btn {
        padding: 0.3em 0.8em;
        font-size: 0.8em;
    }
}