/* Global Styles */
:root {
    --primary-color: #232f3e;
    --secondary-color: #febd69;
    --accent-color: #0073bb;
    --text-color: #333333;
    --light-text: #666666;
    --background-color: #ffffff;
    --light-bg: #f5f5f5;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Wide Screen Optimizations */
@media (min-width: 1600px) {
    .service-cards,
    .stats,
    .process-steps,
    .footer-content {
        gap: 3rem;
    }
    
    .service-card,
    .stat-item,
    .step {
        padding: 3rem;
    }
    
    .hero h2 {
        font-size: 4rem;
    }
    
    .hero p {
        font-size: 1.3rem;
        max-width: 1000px;
    }
    
    h2 {
        font-size: 2.5rem;
    }
    
    h3 {
        font-size: 1.8rem;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
}

h3 {
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
}

p {
    margin-bottom: 1rem;
    color: var(--light-text);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

/* Header Styles - Amazon AWS Style */
header {
    background-color: var(--primary-color);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    height: 60px;
    display: flex;
    align-items: center;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
}

.logo {
    flex-shrink: 0;
    height: 100%;
    display: flex;
    align-items: center;
}

.logo h1 {
    color: white;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0;
    letter-spacing: -0.5px;
}

nav {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    height: 100%;
    align-items: center;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
    align-items: center;
}

nav ul li {
    margin: 0 1rem;
    height: 100%;
    display: flex;
    align-items: center;
}

nav ul li a {
    color: white;
    font-weight: 500;
    position: relative;
    white-space: nowrap;
    font-size: 0.95rem;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    transition: all 0.2s ease;
}

nav ul li a:hover {
    color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.1);
}

/* Dropdown Menu Styles */
nav ul li.dropdown {
    position: relative;
}

nav ul li.dropdown .dropdown-toggle {
    padding-right: 1.5rem;
}

nav ul li.dropdown .dropdown-toggle::after {
    content: '▼';
    position: absolute;
    right: 0.5rem;
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

nav ul li.dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
}

nav ul li.dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--primary-color);
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

nav ul li.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

nav ul li.dropdown .dropdown-menu a {
    color: white;
    padding: 0.8rem 1.2rem;
    display: block;
    text-align: left;
    white-space: normal;
    height: auto;
    min-height: 40px;
    line-height: 1.4;
}

nav ul li.dropdown .dropdown-menu a:hover {
    background-color: var(--accent-color);
    color: white;
}

/* Responsive Navigation Styles */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
}

/* Mobile menu button */
.mobile-menu-button {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1002;
}

.mobile-menu-button span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: white;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-button.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

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

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--primary-color);
    z-index: 999;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-nav.active {
    display: block;
    max-height: none;
    height: calc(100vh - 60px);
    overflow-y: auto;
}

.mobile-nav ul {
    flex-direction: column;
    align-items: stretch;
}

.mobile-nav ul li {
    margin: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav ul li a {
    padding: 1rem;
    justify-content: center;
    font-size: 1rem;
}

.dropdown-arrow {
    display: inline-block;
    margin-left: 8px;
    font-size: 0.8rem;
    transition: transform 0.3s ease;
    vertical-align: middle;
}

.mobile-dropdown-toggle.active .dropdown-arrow {
    transform: rotate(180deg);
}

.mobile-dropdown-menu {
    display: none;
    background-color: rgba(0, 0, 0, 0.2);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    opacity: 0;
}

.mobile-dropdown-menu.active {
    display: block;
    max-height: none;
    opacity: 1;
}

.mobile-dropdown-menu a {
    padding: 0.8rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    justify-content: flex-start;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.mobile-dropdown-menu a::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--secondary-color);
    transform: translateX(-100%);
    transition: transform 0.2s ease;
}

.mobile-dropdown-menu a:hover {
    background-color: rgba(0, 0, 0, 0.3);
    padding-left: 1.7rem;
}

.mobile-dropdown-menu a:hover::before {
    transform: translateX(0);
}

.mobile-dropdown-menu a:last-child {
    border-bottom: none;
}

.mobile-dropdown-toggle {
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .mobile-dropdown-toggle {
        touch-action: manipulation;
    }
    
    .mobile-dropdown-menu a:active {
        background-color: rgba(0, 0, 0, 0.4);
    }
}

/* Responsive Media Queries */
@media (max-width: 1200px) {
    nav ul li {
        margin: 0 0.7rem;
    }
    
    nav ul li a {
        font-size: 0.9rem;
    }
}

@media (max-width: 1024px) {
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-button {
        display: flex;
    }
    
    .logo h1 {
        font-size: 1.4rem;
    }
}

@media (max-width: 768px) {
    header {
        height: 55px;
    }
    
    .mobile-nav {
        top: 55px;
    }
    
    .mobile-nav.active {
        height: calc(100vh - 55px);
    }
    
    .logo h1 {
        font-size: 1.2rem;
    }
    
    /* 确保下拉菜单项在小屏幕上有足够的点击区域 */
    .mobile-dropdown-menu a {
        padding: 1rem 1.5rem;
    }
}

/* 保持原有样式 */
.language-selector {
    flex-shrink: 0;
    margin-left: 1rem;
}

.language-selector select {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.4rem 0.8rem;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.language-selector select:hover {
    border-color: white;
}

.language-selector select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(254, 189, 105, 0.2);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #131921 100%);
    color: white;
    padding: 12rem 0 8rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-bg.svg') center/cover no-repeat;
    opacity: 0.1;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.hero h2::after {
    display: none;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    font-weight: 600;
    padding: 1rem 2.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary:hover {
    background-color: #f3a847;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    color: var(--primary-color);
}

/* Services Section */
.services {
    padding: 6rem 0;
    background-color: var(--light-bg);
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: white;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--accent-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.service-card .icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.service-card ul {
    list-style: none;
    margin-top: 1.5rem;
}

.service-card ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--light-text);
    position: relative;
    padding-left: 1.5rem;
}

.service-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.service-card ul li:last-child {
    border-bottom: none;
}

/* About Section */
.about {
    padding: 6rem 0;
    text-align: center;
}

.about p {
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.stat-item .number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

/* Process Section */
.process {
    padding: 6rem 0;
    background-color: var(--light-bg);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    position: relative;
}

@media (min-width: 768px) {
    .process-steps::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: 2px;
        background-color: var(--border-color);
        transform: translateY(-50%);
        z-index: -1;
    }
}

.step {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.step:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0 auto 1.5rem;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    margin-top: 50px;
    margin-bottom: 50px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.contact p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
}

#contact-form {
    background-color: white;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 115, 187, 0.1);
}

.contact-info {
    background-color: var(--primary-color);
    color: white;
    padding: 2.5rem;
    border-radius: 8px;
}

.contact-info h3,
.contact-info h4 {
    color: white;
    margin-bottom: 1rem;
}

.contact-info p {
    color: rgba(255, 255, 255, 0.8);
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: 1.5rem;
}

.info-item {
    margin-bottom: 2rem;
}

.info-item:last-child {
    margin-bottom: 0;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 2fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 响应式调整，确保在小屏幕上仍然合理显示 */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-logo {
        grid-column: 1 / -1;
    }
}

/* 移动设备响应式调整 */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-logo, .footer-links, .footer-services-1, .footer-services-2, .footer-contact {
        grid-column: 1 / -1;
    }
}

.footer-logo h3 {
    color: white;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-services-1 h4,
.footer-services-2 h4,
.footer-contact h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links ul li a:hover,
.footer-services-1 ul li a:hover,
.footer-services-2 ul li a:hover {
    color: var(--secondary-color);
}

.footer-services-1 ul,
.footer-services-2 ul {
    list-style: none;
}

.footer-services-1 ul li,
.footer-services-2 ul li {
    margin-bottom: 0.8rem;
}

.footer-services-1 ul li a,
.footer-services-2 ul li a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.8rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    h3 {
        font-size: 1.4rem;
    }
    
    .hero {
        padding: 10rem 0 6rem;
    }
    
    .hero h2 {
        font-size: 2.5rem;
    }
    
    header {
        height: auto;
        min-height: 60px;
    }
    
    header .container {
        flex-wrap: wrap;
        padding: 0.8rem 20px;
    }
    
    nav {
        width: 100%;
        margin-top: 0.8rem;
        order: 3;
        justify-content: flex-start;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: flex-start;
        height: auto;
    }
    
    nav ul li {
        margin: 0.2rem 0.5rem;
        height: auto;
    }
    
    nav ul li a {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
        height: auto;
        border-radius: 3px;
    }
    
    .language-selector {
        margin-top: 0;
        margin-left: auto;
        order: 2;
    }
}

@media (max-width: 480px) {
    .btn-primary {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .service-card,
    .contact-form,
    .contact-info {
        padding: 1.5rem;
    }
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.service-card,
.stat-item,
.step {
    animation: fadeIn 0.6s ease-out;
}

.service-card:nth-child(2) {
    animation-delay: 0.2s;
}

.service-card:nth-child(3) {
    animation-delay: 0.4s;
}

.stat-item:nth-child(2),
.step:nth-child(2) {
    animation-delay: 0.2s;
}

.stat-item:nth-child(3),
.step:nth-child(3) {
    animation-delay: 0.4s;
}

.stat-item:nth-child(4),
.step:nth-child(4) {
    animation-delay: 0.6s;
}

/* 服务页面样式 */
.service-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #131921 100%);
    color: white;
    text-align: center;
    padding: 120px 0 60px;
    margin-bottom: 60px;
}

.service-hero h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    color: white;
}

.service-hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
}

/* 服务详情部分样式优化 */
.service-details {
    padding: 60px 0;
    background-color: white;
}

.service-overview {
    background-color: var(--light-bg);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 60px;
    border-left: 5px solid var(--accent-color);
}

.service-overview h2 {
    text-align: left;
    margin-bottom: 20px;
    padding-bottom: 15px;
}

.service-overview h2::after {
    left: 0;
    transform: none;
    width: 60px;
}

.service-overview p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 0;
}

/* 服务内容卡片样式 */
.service-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-info,
.service-process,
.service-time,
.service-documents,
.service-tips {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--accent-color);
    transition: var(--transition);
}

.service-info:hover,
.service-process:hover,
.service-time:hover,
.service-documents:hover,
.service-tips:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.service-info h3,
.service-process h3,
.service-time h3,
.service-documents h3,
.service-tips h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

/* 服务页面列表样式优化 */
.service-info ul,
.service-time ul,
.service-documents ul,
.service-tips ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.service-info li,
.service-time li,
.service-documents li,
.service-tips li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.service-info li::before,
.service-time li::before,
.service-documents li::before,
.service-tips li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-size: 0.9rem;
}

.service-info li strong,
.service-time li strong,
.service-documents li strong,
.service-tips li strong {
    color: var(--primary-color);
    font-weight: 600;
}

.service-process {
    padding: 20px;
}

.service-process h3 {
    margin-bottom: 20px;
}

.service-process ol {
    padding-left: 20px;
    list-style: none;
    margin-bottom: 0;
}

.service-process li {
    margin-bottom: 15px;
    padding-left: 15px;
    line-height: 1.6;
    border-left: 2px solid var(--accent-color);
}

.service-process li:last-child {
    margin-bottom: 0;
}

.service-process li::before {
    display: none;
}

.service-process li strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* 嵌套列表样式 */
.service-documents ul ul {
    margin-top: 10px;
    margin-bottom: 15px;
    padding-left: 25px;
}

.service-documents ul ul li {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.service-documents ul ul li::before {
    content: '▸';
    color: var(--secondary-color);
}

/* 处理时间注释样式 */
.service-time p {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--light-bg);
    border-radius: 4px;
    font-style: italic;
    font-size: 0.95rem;
}

/* 帮助页面样式 */
.help-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #131921 100%);
    color: white;
    text-align: center;
    padding: 100px 0;
}

.help-hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    color: white;
}

.help-hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
}

.guide-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

.guide-content {
    display: flex;
    gap: 40px;
}

.guide-sidebar {
    flex: 0 0 280px;
    position: sticky;
    top: 40px;
    align-self: flex-start;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
}

.guide-nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.guide-nav li {
    margin-bottom: 8px;
    width: 100%;
}

.guide-nav a {
    display: block;
    padding: 12px 15px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    background-color: white;
    width: 100%;
    white-space: normal;
    word-wrap: break-word;
    line-height: 1.4;
}

.guide-nav a:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateX(5px);
}

.guide-nav a.active {
    background-color: var(--primary-color);
    color: white;
}

.guide-main {
    flex: 1;
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.guide-topic {
    margin-bottom: 60px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.guide-topic:last-child {
    border-bottom: none;
}

.guide-topic h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 2rem;
    border-left: 5px solid var(--accent-color);
    padding-left: 15px;
    text-align: left;
}

.guide-topic h3 {
    color: var(--primary-color);
    margin: 30px 0 15px 0;
    font-size: 1.5rem;
}

.guide-topic p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--light-text);
}

.guide-topic ul {
    margin-bottom: 20px;
    padding-left: 25px;
}

.guide-topic li {
    margin-bottom: 10px;
    line-height: 1.6;
    color: var(--light-text);
}

.business-card {
    background-color: var(--light-bg);
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 0 5px 5px 0;
    box-shadow: var(--shadow);
}

.business-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .guide-content {
        flex-direction: column;
    }
    
    .guide-sidebar {
        flex: 1;
        position: static;
        max-height: none;
    }
    
    .guide-nav {
        margin-bottom: 40px;
    }
    
    .guide-nav ul {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .guide-nav li {
        margin-bottom: 0;
    }
    
    .guide-nav a {
        padding: 10px 15px;
        white-space: nowrap;
    }
}

@media (max-width: 768px) {
    /* 服务页面响应式优化 */
    .service-hero {
        padding: 100px 0 50px;
    }
    
    .service-hero h1 {
        font-size: 2.2rem;
    }
    
    .service-hero p {
        font-size: 1rem;
    }
    
    .service-overview {
        padding: 25px;
    }
    
    .service-info,
    .service-process,
    .service-time,
    .service-documents,
    .service-tips {
        padding: 25px;
    }
    
    .service-content {
        gap: 20px;
    }
    
    /* 帮助页面响应式优化 */
    .help-hero h1 {
        font-size: 2.5rem;
    }
    
    .help-hero p {
        font-size: 1rem;
    }
    
    .guide-nav ul {
        flex-direction: column;
    }
    
    .guide-topic h2 {
        font-size: 1.8rem;
    }
    
    .guide-topic h3 {
        font-size: 1.3rem;
    }
    
    .guide-main {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    /* 服务页面移动设备优化 */
    .service-hero h1 {
        font-size: 1.8rem;
    }
    
    .service-overview {
        padding: 20px;
    }
    
    .service-overview h2 {
        font-size: 1.6rem;
    }
    
    .service-info,
    .service-process,
    .service-time,
    .service-documents,
    .service-tips {
        padding: 20px;
    }
    
    .service-info h3,
    .service-process h3,
    .service-time h3,
    .service-documents h3,
    .service-tips h3 {
        font-size: 1.3rem;
    }
    
    .service-info li,
    .service-time li,
    .service-documents li,
    .service-tips li {
        padding-left: 20px;
    }
    
    .service-process li {
        padding-left: 35px;
    }
}
/* 服务页面专用样式优化 */
.service-page {
    padding: 60px 0;
    background-color: #fafafa;
    overflow: hidden;
    clear: both;
}

/* 确保container有统一的样式和定位 */
.service-page .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    clear: both;
}

/* 修正标题样式，确保正确的边距和对齐 */
.service-page h1 {
    font-size: 2.8rem;
    color: var(--primary-color);
    text-align: center;
    padding: 40px 20px 20px;
    margin: 0;
    font-weight: 700;
    line-height: 1.2;
    clear: both;
}

/* 修复服务内容区域的内边距和对齐 */
.service-content {
    padding: 0 40px 60px;
    margin: 0;
    max-width: 100%;
    overflow: hidden;
    clear: both;
    display: block;
}

/* 确保描述段落正确居中且有合适的间距 */
.service-content > p:first-of-type {
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--light-text);
    margin: 0 auto 40px;
    text-align: center;
    max-width: 900px;
    padding: 0;
}

/* 优化h2标题样式，修复可能的错位问题 */
.service-content h2 {
    font-size: 2rem;
    margin: 60px 0 30px;
    position: relative;
    padding-bottom: 15px;
    text-align: left;
    clear: both;
    line-height: 1.3;
}

/* 修复标题下的装饰线样式 */
.service-content h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 60px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 0;
    padding: 0;
}

/* 确保h3标题有正确的样式和边距 */
.service-content h3 {
    font-size: 1.4rem;
    margin: 0 0 15px;
    color: var(--accent-color);
    line-height: 1.4;
}

/* 服务列表样式优化 */
.service-content ul {
    list-style-type: none;
    margin: 0 0 30px;
    padding: 0;
    clear: both;
}

.service-content ul li {
    padding: 15px 20px;
    margin: 0 0 12px;
    background-color: #f8f8f8;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition);
    display: block;
    line-height: 1.5;
}

.service-content ul li:last-child {
    margin-bottom: 0;
}

.service-content ul li:hover {
    background-color: #f0f0f0;
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.service-content ul li strong {
    color: var(--primary-color);
    font-weight: 600;
    margin-right: 8px;
}

/* 有序列表样式优化 */
.service-content ol {
    list-style-type: decimal;
    padding: 0 0 0 30px;
    margin: 0 0 30px;
    clear: both;
}

.service-content ol li {
    padding: 10px 0;
    line-height: 1.6;
    color: var(--text-color);
    margin: 0;
}

/* 优势展示区域布局优化 */
.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin: 30px 0 40px;
    padding: 0;
    clear: both;
}

/* 确保网格在所有浏览器中正确渲染 */
@supports not (display: grid) {
    .benefits {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    
    .benefit-item {
        flex: 0 1 280px;
        margin: 0 0 25px;
    }
}

/* 优势展示区域grid布局 */
.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 30px auto;
    width: 100%;
    clear: both;
    overflow: hidden;
}

/* 优势项样式优化 */
.benefit-item {
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
    border-top: 3px solid var(--accent-color);
    transition: var(--transition);
    margin: 0;
}

.benefit-item h3 {
    margin: 0 0 12px;
    font-size: 1.3rem;
    line-height: 1.4;
}

.benefit-item p {
    margin: 0;
    color: var(--light-text);
    line-height: 1.6;
}

/* CTA区域优化，修复可能的错位 */
.cta {
    text-align: center;
    margin: 60px auto 0;
    padding: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 10px;
    clear: both;
    width: 100%;
    display: block;
    overflow: hidden;
}

.cta p {
    font-size: 1.3rem;
    margin: 0 0 25px;
    color: white;
    line-height: 1.6;
}

.cta .btn-primary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 6px;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    border: none;
    cursor: pointer;
}

.cta .btn-primary:hover {
    background-color: #ffc780;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(254, 189, 105, 0.3);
}

/* 服务内容区域样式优化 */
.service-content {
    max-width: 100%;
    overflow: hidden;
}

/* 标题样式优化 */
.service-content h2 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
    color: var(--primary-color);
    clear: both;
    display: block;
}

/* 列表样式优化 */
.service-content ul,
.service-content ol {
    margin: 20px 0;
    padding-left: 30px;
}

.service-content ul li,
.service-content ol li {
    margin-bottom: 12px;
    line-height: 1.6;
}

/* 全局p标签样式优化，避免不一致的边距 */
.service-content p {
    margin: 20px 0;
    line-height: 1.8;
    color: var(--text-color);
    font-size: 1.05rem;
}

.service-content p:first-of-type {
    margin-top: 30px;
    font-size: 1.15rem;
    line-height: 1.8;
}

.service-content p:last-child {
    margin-bottom: 30px;
}

/* 修复可能的浮动元素导致的错位 */
.service-content * {
    box-sizing: border-box;
}

/* 确保所有元素都有适当的定位 */
.service-content > * {
    position: relative;
    z-index: 1;
    clear: both;
}

/* 确保container有正确的内边距和宽度 */
.service-page .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    box-sizing: border-box;
}

/* 响应式调整优化 */
@media (max-width: 768px) {
    .service-page {
        padding: 30px 0;
    }
    
    .service-page h1 {
        font-size: 2rem;
        padding: 30px 20px 15px;
        margin: 0;
    }
    
    .service-content {
        padding: 0 20px 40px;
    }
    
    .service-content > p:first-of-type {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    
    .service-content h2 {
        font-size: 1.7rem;
        margin-top: 40px;
    }
    
    .benefits {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cta {
        padding: 30px 20px;
        margin-top: 50px;
    }
    
    .cta p {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .service-page h1 {
        font-size: 1.8rem;
    }
    
    .service-content h2 {
        font-size: 1.5rem;
    }
    
    .service-content ul li {
        padding: 12px 15px;
    }
    
    .benefit-item {
        padding: 20px;
    }
}