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

body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    color: #666;
    line-height: 1.6;
}

/* 颜色变量 - 根据税小满logo调整 */
:root {
    --primary-blue: #1A5490;
    --accent-red: #DC143C;
    --text-title: #333;
    --text-body: #666;
    --text-note: #999;
    --bg-light: #f5f7fa;
}

/* 1. 顶部导航栏 */
.navbar {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    z-index: 1000;
}

.nav-left {
    display: flex;
    gap: 40px;
    align-items: center;
}

.logo-area {
    width: auto;
    max-width: 540px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.logo-wrapper:hover {
    transform: scale(1.02);
}

.logo-image {
    height: 45px;
    width: auto;
    display: block;
    transition: height 0.3s ease;
    object-fit: contain;
    max-width: 240px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-shrink: 0;
}

.logo-name {
    font-size: 20px;
    font-weight: bold;
    color: #1A5490;
    margin: 0;
    line-height: 1.2;
    white-space: nowrap;
}

.logo-tagline {
    font-size: 11px;
    color: #666;
    margin: 0;
    line-height: 1.2;
    white-space: nowrap;
}

/* 移动端菜单切换按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 8px;
    margin-left: 10px;
    background: none;
    border: none;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: all 0.3s;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 搜索框容器 */
.search-box {
    display: flex;
    align-items: center;
}

/* 响应式设计 - 移动端优化 */
@media (max-width: 768px) {
    /* 直接隐藏整个导航栏 */
    .navbar {
        display: none !important;
    }

    /* Banner区域调整 */
    .banner {
        margin-top: 0 !important;
        padding: 30px 20px !important;
        flex-direction: column;
        text-align: center;
        min-height: auto;
    }

    .banner-title {
        font-size: 28px !important;
        line-height: 1.4;
        margin-bottom: 15px;
    }

    .banner-subtitle {
        font-size: 14px !important;
        margin-bottom: 25px;
        line-height: 1.6;
    }

    .banner-buttons {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .banner-buttons .btn-primary,
    .banner-buttons .btn-secondary {
        width: 100%;
        max-width: 100%;
        padding: 14px 20px;
        font-size: 16px;
    }

    .banner-right {
        margin-top: 30px;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
    }

    .data-card {
        min-width: calc(50% - 6px);
        padding: 15px;
    }

    .data-number {
        font-size: 24px !important;
    }

    .data-label {
        font-size: 11px !important;
    }
}

/* 2. Banner首屏 */
.banner {
    margin-top: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 80px 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 600px;
}

.banner-left {
    flex: 1;
    color: white;
}

.banner-title {
    font-size: 48px;
    font-weight: bold;
    line-height: 1.3;
    margin-bottom: 20px;
}

.banner-subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.banner-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary {
    padding: 15px 40px;
    background: var(--accent-red);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: #c01234;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 20, 60, 0.4);
}

.btn-secondary {
    padding: 15px 40px;
    background: white;
    color: var(--primary-blue);
    border: 2px solid white;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

.banner-right {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.data-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s;
}

.data-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.data-number {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 10px;
}

.data-label {
    font-size: 14px;
    opacity: 0.9;
}

/* 3. 核心服务区 */
.services {
    padding: 80px 60px;
    background: white;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--text-title);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-body);
}

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

.service-item {
    text-align: center;
    padding: 40px 25px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-name {
    font-size: 20px;
    color: var(--text-title);
    margin-bottom: 15px;
    font-weight: 600;
}

.service-desc {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.6;
}

/* 4. 平台优势区 */
.advantages {
    padding: 80px 60px;
    background: var(--bg-light);
}

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

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.advantage-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.advantage-title {
    font-size: 24px;
    color: var(--text-title);
    margin-bottom: 15px;
    font-weight: 600;
}

.advantage-desc {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.6;
}

/* 5. 个税政策/资讯动态区 */
.news {
    padding: 80px 60px;
    background: white;
}

.news-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.news-title {
    font-size: 28px;
    color: var(--text-title);
    font-weight: 600;
}

.news-more {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}

.news-more:hover {
    color: var(--accent-red);
}

.news-content {
    display: flex;
    gap: 30px;
}

.news-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--bg-light);
    border-radius: 8px;
    transition: all 0.3s;
}

.news-item:hover {
    background: #e8f0fe;
    transform: translateX(5px);
}

.news-tag {
    background: var(--primary-blue);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.news-tag.热点 {
    background: var(--accent-red);
}

.news-tag.推荐 {
    background: #ff9800;
}

.news-text {
    flex: 1;
    color: var(--text-title);
    font-size: 16px;
    font-weight: 500;
}

.news-date {
    color: var(--text-note);
    font-size: 14px;
    white-space: nowrap;
}

.news-card {
    flex: 1;
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-red);
}

.news-card-img {
    font-size: 40px;
    margin-bottom: 15px;
}

.news-card-title {
    font-size: 20px;
    color: var(--text-title);
    margin-bottom: 10px;
    font-weight: 600;
}

.news-card-desc {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-card-date {
    font-size: 14px;
    color: var(--text-note);
}

/* 6. 客户案例/合作企业区 */
.cases {
    padding: 80px 60px;
    background: var(--bg-light);
}

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

.case-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    border-top: 4px solid var(--primary-blue);
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.case-title {
    font-size: 18px;
    color: var(--text-title);
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.case-icon {
    font-size: 24px;
}

.case-content {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.6;
    margin-bottom: 15px;
}

.case-result {
    color: var(--accent-red);
    font-weight: 600;
    font-size: 14px;
}

/* 7. 实力背书/安全保障区 */
.credentials {
    padding: 80px 60px;
    background: white;
}

.credentials-title {
    font-size: 36px;
    color: var(--text-title);
    text-align: center;
    margin-bottom: 60px;
}

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

.credential-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: 10px;
    transition: all 0.3s;
}

.credential-item:hover {
    transform: translateY(-5px);
    background: #e8f0fe;
}

.credential-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.credential-title {
    font-size: 20px;
    color: var(--text-title);
    margin-bottom: 10px;
    font-weight: 600;
}

.credential-desc {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.6;
}

/* 8. 底部 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 60px 20px;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-item h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: white;
}

.footer-desc {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.9;
}

.footer-item p {
    margin-bottom: 10px;
    opacity: 0.8;
    font-size: 15px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.7;
}

/* 页面内容样式 */
.main-content {
    margin-top: 140px;
    min-height: calc(100vh - 140px);
}

.page-content {
    padding: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 30px;
    border-bottom: 2px solid #eee;
}

.page-header h1 {
    font-size: 36px;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    color: var(--text-body);
}

.content-block {
    margin-bottom: 40px;
}

.content-block h3 {
    font-size: 24px;
    color: var(--text-title);
    margin-bottom: 15px;
    border-left: 4px solid var(--primary-blue);
    padding-left: 15px;
}

.content-block p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 10px;
    color: var(--text-body);
}

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

.contact-card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.contact-card .icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.contact-card h4 {
    font-size: 20px;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.contact-card p {
    font-size: 16px;
    color: var(--text-body);
}

.wechat-cta {
    background: linear-gradient(135deg, #07C160, #06A84D);
    color: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    margin: 30px 0;
}

.wechat-cta h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.wechat-cta p {
    font-size: 16px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.wechat-cta a {
    display: inline-block;
    background: white;
    color: #07C160;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
}

/* 政策列表样式 */
.policy-list {
    list-style: none;
}

.policy-item {
    background: white;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border-left: 4px solid var(--primary-blue);
}

.policy-item h4 {
    font-size: 20px;
    color: var(--text-title);
    margin-bottom: 10px;
}

.policy-item .date {
    font-size: 14px;
    color: var(--text-note);
    margin-bottom: 10px;
}

.policy-item .summary {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.6;
}

/* 服务详细内容 */
.service-detail {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 25px;
}

.service-detail h4 {
    font-size: 22px;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.service-detail ul {
    padding-left: 20px;
}

.service-detail li {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 8px;
}

/* 响应式 - 保持手机端与电脑端一致的显示效果 */
@media (max-width: 1200px) {
    .navbar, .banner-left, .banner-right, .services, .advantages, .news, .cases, .credentials, .footer-top, .page-content {
        padding: 0 30px;
    }

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

/* 移动端优化 - 保持与电脑端一致的布局 */
@media (max-width: 768px) {
    /* 导航栏保持一致 */
    .navbar {
        padding: 15px 20px;
        height: 140px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .nav-left {
        flex-direction: row;
        gap: 20px;
        align-items: center;
    }

    .logo-area {
        width: 540px;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .logo-wrapper {
        display: flex;
        align-items: center;
        gap: 8px;
        text-decoration: none;
        color: inherit;
        transition: transform 0.3s ease;
        flex-shrink: 0;
    }

    .logo-wrapper:hover {
        transform: scale(1.02);
    }

    .logo-image {
        height: 35px;
        width: auto;
        display: block;
        transition: height 0.3s ease;
        object-fit: contain;
    }

    .logo-text {
        display: flex;
        flex-direction: column;
        gap: 1px;
        flex-shrink: 0;
    }

    .logo-name {
        font-size: 16px;
        font-weight: bold;
        color: #1A5490;
        margin: 0;
        line-height: 1.1;
        white-space: nowrap;
    }

    .logo-tagline {
        font-size: 9px;
        color: #666;
        margin: 0;
        line-height: 1.1;
        white-space: nowrap;
    }

    .logo-search-box {
        max-width: 140px;
        font-size: 13px;
        padding: 8px 12px;
        margin-left: 10px;
    }

    /* 导航菜单在移动端改为横向滚动，保持可见 */
    .nav-menu {
        display: flex;
        width: 100%;
        overflow-x: auto;
        gap: 20px;
        padding: 10px 0;
        -webkit-overflow-scrolling: touch;
    }

    .nav-item {
        font-size: 14px;
        white-space: nowrap;
    }

    /* Banner区域保持一致的布局 */
    .banner {
        flex-direction: row;
        height: 600px;
        margin-top: 140px;
        padding: 40px 20px;
    }

    .banner-left {
        flex: 1;
        padding-right: 20px;
    }

    .banner-title {
        font-size: 32px;
    }

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

    .banner-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .btn-primary, .btn-secondary {
        padding: 12px 30px;
        font-size: 16px;
        text-align: center;
    }

    /* 右侧数据卡片保持显示，调整为2列 */
    .banner-right {
        flex: 1;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .data-card {
        padding: 20px 15px;
    }

    .data-number {
        font-size: 24px;
    }

    .data-label {
        font-size: 12px;
    }

    /* 服务区域保持2列布局 */
    .services, .advantages, .news, .cases, .credentials {
        padding: 40px 20px;
    }

    .services-grid, .advantages-grid, .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .service-item, .advantage-item, .case-card {
        padding: 25px 15px;
    }

    .service-icon, .advantage-icon {
        font-size: 36px;
    }

    .service-name, .advantage-title {
        font-size: 18px;
    }

    .service-desc, .advantage-desc {
        font-size: 14px;
    }

    /* 新闻区域保持横向布局 */
    .news-content {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .news-list {
        flex: 1;
        min-width: 280px;
    }

    .news-card {
        flex: 1;
        min-width: 280px;
    }

    /* 凭证区域保持2列 */
    .credentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .credential-item {
        padding: 20px 15px;
    }

    .credential-icon {
        font-size: 36px;
    }

    /* 页脚保持4列布局 */
    .footer {
        padding: 40px 20px 20px;
    }

    .footer-top {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .footer-item h4 {
        font-size: 16px;
    }

    .footer-desc, .footer-item p {
        font-size: 13px;
    }

    /* 页面内容区域 */
    .main-content {
        margin-top: 140px;
    }

    .page-content {
        padding: 40px 20px;
    }

    .page-header h1 {
        font-size: 28px;
    }

    .page-header p {
        font-size: 16px;
    }

    .content-block h3 {
        font-size: 20px;
    }

    .content-block p {
        font-size: 15px;
    }

    /* 联系卡片保持2列 */
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .contact-card {
        padding: 20px 15px;
    }

    .contact-card .icon {
        font-size: 36px;
    }

    .contact-card h4 {
        font-size: 18px;
    }

    .contact-card p {
        font-size: 14px;
    }

    /* 微信CTA区域 */
    .wechat-cta {
        padding: 25px 20px;
    }

    .wechat-cta h3 {
        font-size: 20px;
    }

    .wechat-cta p {
        font-size: 15px;
    }

    .wechat-cta a {
        padding: 10px 25px;
        font-size: 15px;
    }

    /* 政策列表 */
    .policy-item {
        padding: 20px 15px;
    }

    .policy-item h4 {
        font-size: 18px;
    }

    .policy-item .summary {
        font-size: 14px;
    }

    /* 导航按钮在移动端保持横向排列 */
    .nav-right {
        display: flex;
        gap: 10px;
        align-items: center;
    }

    .btn-login, .btn-wechat {
        padding: 8px 15px;
        font-size: 14px;
    }
}

/* 备案号链接样式 */
.footer-bottom a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--primary-blue);
    text-decoration: underline;
}
/* ========== 移动端彻底优化 - 隐藏导航栏 ========== */
@media (max-width: 768px) {
    /* 直接隐藏整个导航栏 */
    .navbar {
        display: none !important;
    }
    
    /* Banner区域 - 无margin-top */
    .banner {
        margin-top: 0 !important;
        padding: 30px 20px !important;
    }
    
    /* 主内容区域 - 无padding-top */
    .main-content {
        padding-top: 20px !important;
    }
    
    /* 页面头部 - 居中显示 */
    .page-header {
        text-align: center !important;
        margin-top: 0 !important;
        margin-bottom: 20px !important;
    }
    
    .page-header h1 {
        font-size: 26px !important;
    }
}