/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 顶部导航 */
.header {
    background: #fff;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 12px 0;
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

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

/* Logo样式 */
.logo {
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
}

/* 导航菜单 */
.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 5px;
    align-items: center;
}

.nav-list li {
    position: relative;
}

.nav-list a {
    color: #555;
    font-weight: 500;
    padding: 10px 16px;
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 18px;
}

.nav-list a i {
    font-size: 14px;
    opacity: 0.8;
}

.nav-list a:hover {
    color: #ff9f8f;
    background: rgba(255, 159, 143, 0.08);
}

.nav-list a.active {
    color: #ff9f8f;
    background: rgba(255, 159, 143, 0.12);
}

/* 导航按钮 */
.nav-btn {
    padding: 10px 24px;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    color: #fff;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 159, 143, 0.3);
    border: none;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 159, 143, 0.4);
}

.nav-btn i {
    font-size: 16px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: rgba(255, 159, 143, 0.1);
}

.mobile-menu-btn span {
    width: 26px;
    height: 3px;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Banner区域 */
#home,#home-mobile{
    padding:0px;
}
.banner {
    position: relative;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.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="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    opacity: 0.3;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.2);
}

.banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
    text-align: center;
    padding: 60px 0;
}

.banner-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInUp 0.8s ease;
}

.banner-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    animation: fadeInUp 1s ease;
}

.banner-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 50px;
    animation: fadeInUp 1.2s ease;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 35px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: #ff9f8f;
    color: #fff;
    border-color: #ff9f8f;
}

.btn-primary:hover {
    background: #ff7e66;
    border-color: #ff7e66;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 159, 143, 0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

.btn-outline:hover {
    background: #fff;
    color: #ff9f8f;
}

.btn-cta {
    background: #fff;
    color: #ff9f8f;
    padding: 18px 40px;
    font-size: 18px;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.banner-features {
    display: flex;
    gap: 40px;
    justify-content: center;
    animation: fadeInUp 1.4s ease;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.feature-icon {
    width: 30px;
    height: 30px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

/* 通用Section样式 */
section {
    padding: 80px 0;
}

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

.section-title {
    font-size: 38px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, #ff9f8f, #ff7e66);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 16px;
    color: #7f8c8d;
    margin-top: 20px;
}

/* 服务优势 */
.advantages-section {
    background: #f8f9fa;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

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

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.3s ease;
}

.advantage-icon i {
    font-size: 36px;
    transition: transform 0.6s ease;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(255, 159, 143, 0.4);
}

.advantage-card:hover .advantage-icon i {
    transform: rotate(360deg);
}

.advantage-card h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.advantage-card p {
    color: #7f8c8d;
    line-height: 1.8;
}

/* 问题场景 */
.problems-section {
    background: #fff;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.problem-card {
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    color: #fff;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(255, 159, 143, 0.3);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(255, 159, 143, 0.5);
}

.problem-icon {
    margin-bottom: 15px;
}

.problem-icon i {
    font-size: 50px;
}

.problem-card h4 {
    font-size: 20px;
    margin-bottom: 10px;
}

.problem-card p {
    font-size: 14px;
    opacity: 0.9;
}

/* 服务项目 */
.services-section {
    background: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, #ff9f8f, #ff7e66);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleY(1);
}

.service-card:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-number {
    font-size: 48px;
    font-weight: 700;
    color: #ff9f8f;
    opacity: 0.2;
    margin-bottom: 15px;
}

.service-card h3 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.service-card > p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    margin-top: 20px;
}

.service-features li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 25px;
}

.service-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: #27ae60;
}

/* 服务流程 */
.process-section {
    background: #fff;
}

.process-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, #ff9f8f, #ff7e66);
    transform: translateX(-50%);
}

.process-step {
    display: flex;
    align-items: center;
    margin-bottom: 50px;
    position: relative;
}

.process-step:nth-child(even) {
    flex-direction: row-reverse;
}

.process-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    box-shadow: 0 5px 15px rgba(255, 159, 143, 0.4);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.process-content {
    flex: 1;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 15px;
    margin: 0 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.process-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.process-content h4 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.process-content p {
    color: #7f8c8d;
    line-height: 1.8;
}

/* 客户反馈 */
.testimonials-section {
    background: #f8f9fa;
}

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

.testimonial-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

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

.testimonial-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.testimonial-info h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 5px;
}

.testimonial-info p {
    font-size: 14px;
    color: #7f8c8d;
}

.testimonial-content {
    margin-bottom: 15px;
}

.testimonial-content p {
    color: #555;
    line-height: 1.8;
    font-size: 15px;
}

.testimonial-rating {
    color: #f39c12;
    font-size: 18px;
}

/* 导师团队 */
.team-section {
    background: #fff;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-card {
    background: #f8f9fa;
    border-radius: 15px;
    overflow: hidden;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.team-avatar {
    width: 100%;
    height: 280px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.team-card:hover .team-avatar img {
    transform: scale(1.1);
}

.team-card h4 {
    font-size: 22px;
    color: #2c3e50;
    margin: 20px 0 10px;
    padding: 0 20px;
}

.team-title {
    color: #ff9f8f;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
}

.team-desc {
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.6;
    padding: 0 20px 25px;
}

/* 文章资讯 */
.articles-section {
    background: #f8f9fa;
}

.articles-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 25px;
    border: 2px solid #ddd;
    background: #fff;
    color: #555;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 15px;
    font-weight: 500;
}

.tab-btn:hover {
    border-color: #ff9f8f;
    color: #ff9f8f;
}

.tab-btn.active {
    background: #ff9f8f;
    color: #fff;
    border-color: #ff9f8f;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.article-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.article-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.1);
}

.article-content {
    padding: 25px;
}

.article-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 14px;
}

.article-category {
    color: #ff9f8f;
    font-weight: 600;
}

.article-date {
    color: #95a5a6;
}

.article-content h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 10px;
    line-height: 1.4;
}

.article-content > p {
    color: #7f8c8d;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.article-link {
    color: #ff9f8f;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.article-link:hover {
    gap: 10px;
}

/* CTA引导区 */
.cta-section {
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    color: #fff;
    text-align: center;
    padding: 80px 0;
}

.cta-content h2 {
    font-size: 38px;
    margin-bottom: 20px;
}

.cta-content > p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.cta-icon {
    font-size: 28px;
}

.cta-icon i {
    font-size: 28px;
}

/* 联系我们 */
.contact-section {
    background: #f8f9fa;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-icon {
    font-size: 32px;
    flex-shrink: 0;
    color: #ff9f8f;
    width: 50px;
    text-align: center;
}

.contact-icon i {
    font-size: 32px;
}

.contact-text h4 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 5px;
}

.contact-text p {
    color: #ff9f8f;
    font-size: 18px;
    font-weight: 600;
}

.contact-statement {
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    margin-top: 30px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.contact-statement h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.contact-statement ul {
    list-style: none;
}

.contact-statement li {
    padding: 5px 0;
    color: #555;
}

.contact-statement li i {
    color: #27ae60;
    margin-right: 8px;
}

.contact-qrcode {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.qrcode-box {
    text-align: center;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.qrcode-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.qrcode-box img {
    width: 200px;
    height: 200px;
    margin: 0 auto 15px;
    border: 3px solid #f8f9fa;
    border-radius: 10px;
}

.qrcode-box p {
    color: #555;
    font-size: 14px;
    font-weight: 600;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 60px 0 30px;
}

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

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

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

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

.footer-section a {
    color: #bdc3c7;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ff9f8f;
}

.footer-section p {
    color: #bdc3c7;
    margin-bottom: 8px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
}

.footer-bottom p {
    color: #95a5a6;
    font-size: 14px;
    margin-bottom: 5px;
}

/* 悬浮按钮 */
.floating-contact {
    position: fixed;
    bottom: 80px;
    right: 30px;
    z-index: 999;
}

.floating-btn {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff9f8f 0%, #ff7e66 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 5px 20px rgba(255, 159, 143, 0.5);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(255, 159, 143, 0.7);
}

.floating-btn i {
    font-size: 28px;
}

/* 回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #ff9f8f;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    box-shadow: 0 3px 15px rgba(255, 159, 143, 0.4);
    transition: all 0.3s ease;
    z-index: 998;
}

.back-to-top:hover {
    background: #ff7e66;
    transform: translateY(-5px);
}

.back-to-top.show {
    display: flex;
}

.back-to-top i {
    font-size: 22px;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .logo img {
        height: 40px;
    }
    
    .nav-list {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        gap: 0;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .nav-list.active {
        display: flex;
    }
    
    .nav-list li {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-list li:last-child {
        border-bottom: none;
    }
    
    .nav-list a {
        width: 100%;
        padding: 15px 20px;
        justify-content: flex-start;
        border-radius: 0;
    }
    
    .nav-list a i {
        font-size: 16px;
        width: 24px;
    }
    
    .nav-btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .banner-title {
        font-size: 36px;
    }
    
    .banner-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .process-timeline::before {
        left: 40px;
    }
    
    .process-step {
        flex-direction: row !important;
    }
    
    .process-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .process-content {
        margin-left: 20px;
        margin-right: 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .banner {
        min-height: 500px;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-subtitle {
        font-size: 16px;
    }
    
    .banner-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .advantages-grid,
    .services-grid,
    .testimonials-grid,
    .team-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .cta-content > p {
        font-size: 16px;
    }
    
    .floating-contact {
        bottom: 70px;
        right: 20px;
    }
    
    .floating-btn {
        width: 50px;
        height: 50px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 50px 0;
    }
    
    .logo img {
        height: 35px;
    }
    
    .banner-title {
        font-size: 24px;
    }
    
    .banner-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .advantage-card,
    .service-card,
    .testimonial-card {
        padding: 25px 20px;
    }
    
    .problem-card {
        padding: 30px 20px;
    }
    
    .problems-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 20px;
    }
}

/* 导航下拉动画 */
@media (max-width: 992px) {
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .nav-list.active {
        animation: slideDown 0.3s ease;
    }
}