/* 基础样式设置 */
:root {
    --primary-color: #2196F3;
    --primary-light: #64B5F6;
    --primary-dark: #1565C0;
    --secondary-color: #607D8B;
    --secondary-light: #90A4AE;
    --secondary-dark: #37474F;
    
    /* 丰富的辅助色调 */
    --accent-blue: #1E88E5;
    --accent-blue-light: #42A5F5;
    --accent-green: #4CAF50;
    --accent-green-light: #81C784;
    --accent-cyan: #00BCD4;
    --accent-cyan-light: #4DD0E1;
    --accent-teal: #009688;
    --accent-indigo: #3F51B5;
    
    --background-color: #f8fbff;
    --text-color: #333;
    --text-light: #666;
    --white: #ffffff;
    --card-shadow: 0 10px 20px rgba(33, 150, 243, 0.1);
    --border-radius: 20px;
    --section-padding: 80px 0;
    
    /* 字体家族 */
    --font-primary: 'Comfortaa', 'Nunito', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-secondary: 'Varela Round', 'Nunito', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-heading: 'Comfortaa', 'Nunito', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
    overflow-x: hidden;
    letter-spacing: 0.3px;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
    font-weight: 600;
}

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 0.5px;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 800;
}

.underline {
    height: 6px;
    width: 100px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 10px;
}

/* 为不同部分添加独特的下划线颜色 */
.about .underline {
    background: linear-gradient(to right, var(--primary-color), var(--accent-blue));
}

.providers .underline {
    background: linear-gradient(to right, var(--accent-green), var(--accent-teal));
}

.features .underline {
    background: linear-gradient(to right, var(--accent-cyan), var(--accent-cyan-light));
}

.advantages .underline {
    background: linear-gradient(to right, var(--accent-green), var(--accent-green-light));
}

.agency .underline {
    background: linear-gradient(to right, var(--accent-indigo), var(--primary-light));
}

.cases .underline {
    background: linear-gradient(to right, var(--accent-blue), var(--accent-blue-light));
}

.support .underline {
    background: linear-gradient(to right, var(--accent-teal), var(--accent-cyan));
}

.partners .underline {
    background: linear-gradient(to right, var(--primary-color), var(--accent-indigo));
}

.contact .underline {
    background: linear-gradient(to right, var(--accent-green), var(--accent-teal));
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    border: none;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    font-family: var(--font-secondary);
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-blue));
    color: var(--white);
}

.btn.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent-blue));
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(33, 150, 243, 0.4);
}

.btn.secondary {
    background: linear-gradient(135deg, var(--white), #f8f9fa);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn.secondary:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-indigo));
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(33, 150, 243, 0.4);
}

/* 为联系表单按钮添加特殊样式 */
.contact-form .btn.primary {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-teal));
}

.contact-form .btn.primary:hover {
    background: linear-gradient(135deg, var(--accent-green-light), var(--accent-teal));
    box-shadow: 0 8px 20px rgba(76, 175, 80, 0.4);
}

/* 介绍段落样式 */
.about-intro, .provider-intro, .features-intro, .advantages-intro, 
.agency-intro, .privacy-intro, .cases-intro, 
.support-intro, .partners-intro, .contact-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px;
    font-size: 1.1rem;
    color: var(--text-light);
    padding: 0 20px;
    font-family: var(--font-secondary);
    line-height: 1.8;
}

/* 特性描述样式 */
.feature-desc, .cert-desc {
    display: block;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: normal;
    font-family: var(--font-secondary);
}

/* 页脚描述样式 */
.footer-desc {
    margin-top: 15px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
}

/* 头部导航样式 */
header {
    background-color: var(--white);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: 15px 0;
    border-bottom-left-radius: 25px;
    border-bottom-right-radius: 25px;
}

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

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    max-height: 60px;
    margin-right: 15px;
}

.logo-container h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 0;
    font-weight: 900;
    letter-spacing: 0.8px;
}

nav {
    display: flex;
    align-items: center;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 700;
    position: relative;
    padding: 5px 0;
    font-family: var(--font-secondary);
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 30px;
    height: 4px;
    background-color: var(--primary-color);
    margin-bottom: 5px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    padding-top: 150px;
    padding-bottom: 80px;
    background: linear-gradient(135deg, #f8fbff 0%, #e3f2fd 30%, #e8eaf6 70%, #e1f5fe 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.15) 0%, rgba(30, 136, 229, 0.1) 50%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.12) 0%, rgba(0, 150, 136, 0.08) 50%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    animation: float 6s ease-in-out infinite reverse;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    padding-right: 30px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: 1px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-light);
    line-height: 1.8;
    font-family: var(--font-secondary);
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 90%;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 10px 15px rgba(33, 150, 243, 0.2));
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0);
    }
}

/* 关于我们部分 */
.about {
    padding: var(--section-padding);
    background-color: var(--white);
    border-radius: var(--border-radius);
    margin: 20px 0;
    box-shadow: var(--card-shadow);
}

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

.about-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

.about-card:nth-child(1)::before {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-blue));
}

.about-card:nth-child(2)::before {
    background: linear-gradient(45deg, var(--accent-green), var(--accent-teal));
}

.about-card:nth-child(3)::before {
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-cyan-light));
}

.about-card:nth-child(4)::before {
    background: linear-gradient(45deg, var(--accent-teal), var(--accent-cyan-light));
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-light);
    box-shadow: var(--card-shadow);
}

.about-card:hover::before {
    height: 8px;
}

.about-card .icon {
    margin-bottom: 20px;
}

.about-card .icon i {
    font-size: 3rem;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-card:nth-child(1) .icon i {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-card:nth-child(2) .icon i {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-card:nth-child(3) .icon i {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-cyan-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-card:nth-child(4) .icon i {
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-cyan-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.about-card:nth-child(1) h3 {
    color: var(--accent-blue);
}

.about-card:nth-child(2) h3 {
    color: var(--accent-green);
}

.about-card:nth-child(3) h3 {
    color: var(--accent-cyan);
}

.about-card:nth-child(4) h3 {
    color: var(--accent-teal);
}

.about-card p {
    color: var(--text-light);
    font-family: var(--font-secondary);
}

/* 服务商部分 */
.providers {
    padding: var(--section-padding);
}

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

.provider-card {
    background-color: var(--white);
    padding: 35px 25px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    border: 2px solid transparent;
    background-clip: padding-box;
}

.provider-card::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: linear-gradient(45deg, var(--primary-light), var(--secondary-light));
    border-radius: var(--border-radius);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: all 0.3s ease;
}

.provider-card:nth-child(1)::before {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-blue));
}

.provider-card:nth-child(2)::before {
    background: linear-gradient(45deg, var(--accent-cyan), var(--accent-cyan-light));
}

.provider-card:nth-child(3)::before {
    background: linear-gradient(45deg, var(--accent-green), var(--accent-teal));
}

.provider-card:nth-child(4)::before {
    background: linear-gradient(45deg, var(--accent-indigo), var(--primary-light));
}

.provider-card:nth-child(5)::before {
    background: linear-gradient(45deg, var(--accent-teal), var(--accent-cyan-light));
}

.provider-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(33, 150, 243, 0.2);
}

.provider-card:hover::before {
    opacity: 1;
}

.provider-logo-container {
    height: 100px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    padding: 10px;
    position: relative;
}

.provider-logo {
    max-width: 140px;
    max-height: 70px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: grayscale(20%) opacity(85%);
}

.provider-card:hover .provider-logo {
    transform: scale(1.1);
    filter: grayscale(0%) opacity(100%);
}

.provider-card h3 {
    margin: 15px 0;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.provider-card p {
    font-family: var(--font-secondary);
    margin-top: auto;
}

/* 特色部分 */
.features {
    padding: var(--section-padding);
    background-color: var(--white);
    border-radius: var(--border-radius);
    margin: 20px 0;
    box-shadow: var(--card-shadow);
}

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

.feature {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.feature:hover {
    background-color: rgba(33, 150, 243, 0.05);
}

.feature-icon {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(33, 150, 243, 0.1);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.feature:nth-child(1) .feature-icon {
    color: var(--accent-green);
    background: rgba(76, 175, 80, 0.1);
}

.feature:nth-child(2) .feature-icon {
    color: var(--accent-cyan);
    background: rgba(0, 188, 212, 0.1);
}

.feature:nth-child(3) .feature-icon {
    color: var(--accent-blue);
    background: rgba(30, 136, 229, 0.1);
}

.feature:nth-child(4) .feature-icon {
    color: var(--accent-teal);
    background: rgba(0, 150, 136, 0.1);
}

.feature:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.feature-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
    color: var(--primary-color);
}

.feature-content p {
    color: var(--text-light);
    font-family: var(--font-secondary);
}

/* 优势对比部分 */
.advantages {
    padding: var(--section-padding);
}

.comparison-table {
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-secondary);
}

.comparison-table th, .comparison-table td {
    padding: 20px;
    text-align: left;
    border: none;
    vertical-align: middle;
}

.comparison-table th {
    color: var(--white);
    font-size: 1.2rem;
    font-family: var(--font-heading);
    font-weight: 700;
}

.comparison-table th:first-child {
    background-color: #1565C0;
    width: 18%;
}

.problem-column {
    background-color: #f05454;
    width: 41%;
}

.advantage-column {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-light));
    width: 41%;
}

.comparison-table tr:nth-child(odd) {
    background-color: rgba(255, 255, 255, 0.9);
}

.comparison-table tr:nth-child(even) {
    background-color: rgba(33, 150, 243, 0.05);
}

.comparison-table td:first-child {
    font-weight: 700;
    color: #1565C0;
    background-color: rgba(21, 101, 192, 0.05);
    border-left: 4px solid #1565C0;
}

.problem-cell {
    color: #444;
    border-left: 1px solid rgba(240, 84, 84, 0.2);
    border-right: 1px solid rgba(240, 84, 84, 0.2);
    position: relative;
    transition: all 0.3s ease;
}

.advantage-cell {
    color: #444;
    font-weight: 600;
    border-left: 1px solid rgba(76, 175, 80, 0.2);
    border-right: 1px solid rgba(76, 175, 80, 0.2);
    position: relative;
    transition: all 0.3s ease;
}

.problem-icon {
    color: #f05454;
    margin-right: 8px;
    font-size: 1.1rem;
}

.advantage-icon {
    color: var(--accent-green);
    margin-right: 8px;
    font-size: 1.1rem;
}

.comparison-table tr:hover .problem-cell {
    background-color: rgba(240, 84, 84, 0.08);
}

.comparison-table tr:hover .advantage-cell {
    background-color: rgba(76, 175, 80, 0.08);
    transform: translateX(5px);
    box-shadow: 2px 0 10px rgba(76, 175, 80, 0.2);
}

/* 代理实力部分 */
.agency {
    padding: var(--section-padding);
    background-color: var(--white);
    border-radius: var(--border-radius);
    margin: 20px 0;
    box-shadow: var(--card-shadow);
}

.agency-features {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.agency-feature {
    text-align: center;
    flex: 1;
    min-width: 250px;
}

.agency-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.agency-feature h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.agency-feature p {
    color: var(--text-light);
    font-size: 0.95rem;
    font-family: var(--font-secondary);
}

/* 隐私保护部分 */
.privacy {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--accent-indigo) 0%, var(--accent-blue) 50%, var(--primary-color) 100%);
    color: var(--white);
    border-radius: var(--border-radius);
    margin: 20px 0;
}

.privacy .section-header h2 {
    color: var(--white);
}

.privacy .underline {
    background: var(--white);
}

.privacy-intro {
    color: var(--white);
}

.privacy-features {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.privacy-feature {
    text-align: center;
    flex: 1;
    min-width: 200px;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.privacy-feature:hover {
    transform: translateY(-10px);
    background-color: rgba(255, 255, 255, 0.2);
}

.privacy-feature i {
    font-size: 3rem;
    margin-bottom: 15px;
}

.privacy-feature p {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.privacy-feature .feature-desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.privacy-feature:nth-child(1) {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(30, 136, 229, 0.3);
}

.privacy-feature:nth-child(1):hover {
    background-color: rgba(30, 136, 229, 0.2);
    border-color: var(--accent-blue);
}

.privacy-feature:nth-child(2) {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(0, 188, 212, 0.3);
}

.privacy-feature:nth-child(2):hover {
    background-color: rgba(0, 188, 212, 0.2);
    border-color: var(--accent-cyan);
}

.privacy-feature:nth-child(3) {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(76, 175, 80, 0.3);
}

.privacy-feature:nth-child(3):hover {
    background-color: rgba(76, 175, 80, 0.2);
    border-color: var(--accent-green);
}

/* 案例部分 */
.cases {
    padding: var(--section-padding);
}

.case-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.case-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(33, 150, 243, 0.2);
}

.case-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    padding: 20px;
    background: rgba(33, 150, 243, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.case-card:nth-child(1) .case-icon {
    color: var(--accent-indigo);
    background: rgba(63, 81, 181, 0.1);
}

.case-card:nth-child(2) .case-icon {
    color: var(--accent-cyan);
    background: rgba(0, 188, 212, 0.1);
}

.case-card:nth-child(3) .case-icon {
    color: var(--accent-blue);
    background: rgba(30, 136, 229, 0.1);
}

.case-card:hover .case-icon {
    transform: scale(1.1) rotate(5deg);
}

.case-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.case-card:nth-child(1) h3 {
    color: var(--accent-indigo);
}

.case-card:nth-child(2) h3 {
    color: var(--accent-cyan);
}

.case-card:nth-child(3) h3 {
    color: var(--accent-blue);
}

.case-card p {
    font-family: var(--font-secondary);
}

.testimonial {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.quote {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.quote i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.quote p {
    margin: 0 15px;
    font-size: 1.3rem;
    font-style: italic;
    color: var(--text-color);
    font-family: var(--font-secondary);
    line-height: 1.6;
    letter-spacing: 0.3px;
}

.author {
    font-weight: bold;
    color: var(--text-light);
    font-family: var(--font-secondary);
}

/* 技术支持部分 */
.support {
    padding: var(--section-padding);
    background-color: var(--white);
    border-radius: var(--border-radius);
    margin: 20px 0;
    box-shadow: var(--card-shadow);
}

.support-features {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.support-feature {
    text-align: center;
    flex: 1;
    min-width: 200px;
    padding: 30px 20px;
    transition: all 0.3s ease;
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid transparent;
}

.support-feature:nth-child(1) {
    border-color: rgba(76, 175, 80, 0.2);
}

.support-feature:nth-child(1):hover {
    background: rgba(76, 175, 80, 0.05);
    border-color: var(--accent-green);
    transform: translateY(-5px);
}

.support-feature:nth-child(2) {
    border-color: rgba(30, 136, 229, 0.2);
}

.support-feature:nth-child(2):hover {
    background: rgba(30, 136, 229, 0.05);
    border-color: var(--accent-blue);
    transform: translateY(-5px);
}

.support-feature:nth-child(3) {
    border-color: rgba(0, 188, 212, 0.2);
}

.support-feature:nth-child(3):hover {
    background: rgba(0, 188, 212, 0.05);
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
}

.support-feature i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.support-feature:nth-child(1) i {
    color: var(--accent-green);
}

.support-feature:nth-child(2) i {
    color: var(--accent-blue);
}

.support-feature:nth-child(3) i {
    color: var(--accent-cyan);
}

.support-feature p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 5px;
}

/* 合作伙伴部分 */
.partners {
    padding: var(--section-padding);
}

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

.partner {
    background-color: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 180px;
    height: 120px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.partner:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(33, 150, 243, 0.2);
}

.partner-logo-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-logo {
    max-width: 140px;
    max-height: 80px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: grayscale(30%);
}

.partner:hover .partner-logo {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.certifications {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.certification {
    text-align: center;
}

.certification i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.cert-icon {
    width: 100px;
    height: auto;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.certification:hover .cert-icon {
    transform: translateY(-5px);
}

.certification p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 5px;
}

/* 联系部分 */
.contact {
    padding: var(--section-padding);
    background-color: var(--white);
    border-radius: var(--border-radius);
    margin: 20px 0;
    box-shadow: var(--card-shadow);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-item p {
    font-family: var(--font-secondary);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 30px;
    background-color: rgba(33, 150, 243, 0.05);
    border-radius: var(--border-radius);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid transparent;
    border-radius: 15px;
    background-color: var(--white);
    transition: all 0.3s ease;
    font-size: 1rem;
    font-family: var(--font-secondary);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.2);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* 页脚部分 */
footer {
    background-color: #2c2c54;
    color: var(--white);
    padding: 60px 0 20px;
    border-top-left-radius: 30px;
    border-top-right-radius: 30px;
}

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

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo img {
    max-width: 80px;
    margin-bottom: 15px;
}

.footer-links h3, .footer-social h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 25px;
    margin-bottom: 15px;
}

.footer-links ul li {
    margin-bottom: 0;
    position: relative;
}

.footer-links ul li:not(:last-child)::after {
    content: '•';
    color: rgba(255, 255, 255, 0.3);
    position: absolute;
    right: -15px;
    top: 50%;
    transform: translateY(-50%);
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-family: var(--font-secondary);
    transition: all 0.3s ease;
    padding: 3px 0;
}

.footer-links ul li a:hover {
    color: var(--white);
    transform: translateX(3px);
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.social-icons i {
    font-size: 1.2rem;
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-family: var(--font-secondary);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .comparison-table table {
        font-size: 0.9rem;
    }
    
    .comparison-table th, .comparison-table td {
        padding: 15px 10px;
    }

    .language-switcher {
        margin-left: 15px;
    }
    
    .lang-text {
        display: none;
    }
    
    .lang-btn {
        padding: 6px;
    }
}

@media (max-width: 768px) {
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom-left-radius: 15px;
        border-bottom-right-radius: 15px;
    }

    nav ul.active {
        display: flex;
    }

    nav ul li {
        margin: 10px 0;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }

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

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }

    .about-card, .provider-card, .feature, .case-card {
        padding: 20px;
    }

    .feature {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .comparison-table th, .comparison-table td {
        padding: 12px 8px;
        font-size: 0.85rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .about-intro, .provider-intro, .features-intro, .advantages-intro, 
    .agency-intro, .privacy-intro, .cases-intro, 
    .support-intro, .partners-intro, .contact-intro {
        font-size: 1rem;
        padding: 0 10px;
    }

    .footer-links ul {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    
    .footer-links ul li {
        margin-right: 10px;
        margin-bottom: 10px;
    }

    .language-switcher {
        margin-right: 25px;
        z-index: 1001;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .about-card .icon i, .case-icon, .agency-icon, .privacy-feature i, .support-feature i {
        font-size: 2.5rem;
    }

    .about-card h3, .provider-card h3, .feature-content h3, .case-card h3 {
        font-size: 1.2rem;
    }

    .testimonial .quote p {
        font-size: 1.1rem;
    }

    .contact-form {
        padding: 20px;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
    
    .comparison-table table {
        width: 500px;
    }

    .footer-links ul li:not(:last-child)::after {
        display: none;
    }
}

/* 语言切换按钮 */
.language-switcher {
    margin-left: 25px;
    position: relative;
    display: flex;
    align-items: center;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 2px solid var(--primary-light);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-secondary);
}

.lang-btn:hover {
    background-color: var(--primary-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(33, 150, 243, 0.2);
}

.lang-btn i {
    font-size: 1.1rem;
}

.lang-text {
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* 响应式设计调整 */
@media (max-width: 992px) {
    .language-switcher {
        margin-left: 15px;
    }
    
    .lang-text {
        display: none;
    }
    
    .lang-btn {
        padding: 6px;
    }
}

@media (max-width: 768px) {
    nav {
        display: flex;
        align-items: center;
    }
    
    .language-switcher {
        margin-right: 25px;
        z-index: 1001;
    }
    
    nav ul {
        /* existing styles */
    }
    
    /* 更多已有的响应式样式 */
}

/* 其他现有样式 */