:root {
    --primary-color: #4e6ef2;
    --primary-hover: #4662d9;
    --secondary-color: #ff6b6b;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --bg-gray: #f4f4f9;
    --white: #fff;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
}

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

body, html {
    width: 100%;
    font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

/* 固定导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 15px 5%;
    transition: all 0.3s ease;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-left {
    display: flex;
    align-items: center;
}

.navbar-logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    margin-right: 40px;
}

.navbar-logo img {
    height: 40px;
    margin-right: 10px;
}

.navbar-nav {
    display: flex;
    list-style: none;
}

.navbar-nav li {
    margin: 0 15px;
}

.navbar-nav a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.navbar-nav a:hover::after {
    width: 100%;
}

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

.navbar-button {
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.navbar-button.primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.navbar-button.primary:hover {
    background-color: var(--primary-hover);
}

.navbar-button.secondary {
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.navbar-button.secondary:hover {
    background-color: rgba(78, 110, 242, 0.1);
}

/* 汉堡菜单 */
.navbar-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    width: 24px;
    height: 24px;
    justify-content: space-between;
}

.navbar-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 价格对比区域 */
.pricing-section {
    background-color: var(--bg-gray);
    padding: 80px 20px;
}

.pricing-title {
    text-align: center;
    margin-bottom: 50px;
   font-size: 32px;
    color: #333;
    position: relative;
}

.pricing-cards {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 40px 30px;
    flex: 1;
    min-width: 180px;
    max-width: 300px;
    text-align: center;
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-10px);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    position: relative;
}

.pricing-card.featured::before {
    content: "推荐";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

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

.pricing-card .price {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.pricing-card .period {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 25px;
}

.pricing-card ul {
    list-style: none;
    margin-top: 10px;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-card ul li {
    padding: 6px 0;
    position: relative;
    padding-left: 25px;
    font-size: 0.75rem;
    line-height: 1rem;
    color: var(--text-light);
}

.pricing-card ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 0.75rem;
}

/* 价格卡片描述文字样式 */
.pricing-card .pricing-desc {
    font-size: 0.80rem;
    line-height: 1.4;
    margin-bottom: 15px;
    color: var(--text-light);
    min-height: 2.8em; /* 保持统一高度 */
}

/* 价格卡片按钮样式调整 */
.pricing-card .button {
    padding: 8px 20px;       /* 减小内边距 */
    font-size: 0.85rem;      /* 减小字体大小 */
    border-radius: 20px;     /* 保持圆角 */
}

.value-note {
    font-size: 0.6em;
    color: #d48806;
    font-weight: 500;
    margin: 10px 0 0;
    padding: 10px;
    background: #fffbe6;
    border-radius: 6px;
    border: 1px dashed #ffd591;
}

.fine-print {
    font-size: 0.85em;
    color: #aaa;
    margin-top: 10px;
}

/* 联系我们区域 */
.contact-section {
    padding: 80px 20px;
    background-color: var(--white);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.contact-info p {
    margin-bottom: 30px;
    color: var(--text-light);
}

.contact-details {
    margin-top: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.contact-text h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-wechat {
    flex: 1;
    min-width: 300px;
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.contact-wechat h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.wechat-info {
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.wechat-id {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.2rem;
}


.wechat-qr {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    background-color: #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wechat-qr img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.section {
    width: 100%;
    padding: 60px 20px;
}

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

/* 头部区域 */

.header { 
    background: url('banner1.png') no-repeat center center/cover; 
    color: #000000; 
    text-align: left; 
    height: 400px; 
    margin-top: 70px;
    display: flex;
    align-items: center; /* 垂直居中 */
    justify-content: flex-start; /* 左对齐 */
    padding: 0 10%;
    box-sizing: border-box;
}

.header-content { 
    max-width: 700px; 
    margin: 0; 
    text-align: left; 
}

.header-content h1 {
    font-size: 2.0rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-content .subtitle {
    font-size: 1.0rem;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.header-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* .header h1 {
    font-size: 2.0rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-dark);
}
.header .subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 30px;
    color: var(--text-light);
} */

.header .slogan {
    display: inline-block;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-weight: 600;
}

.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 30px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(78, 110, 242, 0.3);
}

.button.secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.button.secondary:hover {
    background-color: rgba(78, 110, 242, 0.1);
}

 

/* 内容区域 */
.content-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.content-left, .content-right {
    flex: 1;
}

.content-left h2, .content-right h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.content-left p, .content-right p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 25px;
}

.feature-img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.feature-img:hover {
    transform: translateY(-5px);
}

.white-bg {
    background-color: var(--white);
}

.gray-bg {
    background-color: var(--bg-gray);
}





/* 特色卡片 */

.section-title {
    font-size: 32px;
    margin-bottom: 30px;
    color: #333;
    position: relative;
    text-align: center;

}


.features {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    flex: 1;
    min-width: 250px;
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card .icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

/* 页脚 */
.footer {
    background-color: #2c3e50;
    color: var(--white);
    text-align: center;
    padding: 40px 20px;
    font-size: 12px;
}

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer .slogan {
    font-size: 1.0em;
    font-style: italic;
}

.footer .copyright {
    font-size: 12px;
}

.footer .beian {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer .beian-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer .beian-icon {
    width: 16px;
    height: 17px;
    margin: 0;
}

.footer a {
    color: #a3c6ff;
    text-decoration: none;
    transition: color 0.3s;
    white-space: nowrap;
}

.footer a:hover {
    color: #fff;
    text-decoration: underline;
}    

/* 弹窗 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--text-dark);
}

.modal h2 {
    margin-bottom: 20px;
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 8px;
    font-weight: 500;
}

input[type="text"],
input[type="tel"] {
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="tel"]:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.2);
}

input[type="submit"] {
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s;
}

input[type="submit"]:hover {
    background-color: var(--primary-hover);
}


/* 如果需要进一步调整，可以添加响应式样式 */
@media (max-width: 768px) {
     .pricing-card ul li {
        padding-left: 30px;
        padding-top: 6px;
        padding-bottom: 6px;
        line-height: 1.2;
        font-size: 0.75rem;
    }
    
    .pricing-card ul li::before {
        left: 10px;
        top: 7px;
        font-size: 0.75rem;
    }
    
    .pricing-card .pricing-desc {
        font-size: 0.8rem;
        min-height: auto;
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .header h1 {
        font-size: 2.4rem;
    }
    
    .header .slogan {
        font-size: 1.6rem;
    }
    
    .content-left h2, .content-right h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .navbar-left {
        width: 100%;
        justify-content: space-between;
    }
    
    .navbar-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        padding: 20px 0;
    }
    
    .navbar-nav.active {
        display: flex;
    }
    
    .navbar-nav li {
        margin: 0;
        text-align: center;
    }
    
    .navbar-nav a {
        display: block;
        padding: 15px 20px;
    }
    
    .navbar-buttons {
        display: none;
    }
    
    .navbar-toggle {
        display: flex;
    }
    
    .section {
        padding: 40px 20px;
    }
    
    .header {
        padding: 60px 20px;
        text-align: center;
        margin-top: 60px;
    }
    
    .header-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .content-container {
        flex-direction: column;
        gap: 40px;
    }
    
    .buttons {
        justify-content: center;
    }
    
    .content-right {
        order: -1;
    }
    
    .feature-card {
        min-width: 100%;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .header .slogan {
        font-size: 1.4rem;
    }
    
    .header .subtitle {
        font-size: 1.2rem;
    }
    
    .contact-container {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 40px 20px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .header .slogan {
        font-size: 1.2rem;
    }
    
    .button {
        width: 100%;
        text-align: center;
    }
    
    .pricing-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .pricing-card {
        width: 100%;
        max-width: 100%;
    }
}