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

:root {
    --primary-color: #E53935;
    --secondary-color: #C62828;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #333;
    --border-radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* 导航栏 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero 区域 */
.hero {
    background: linear-gradient(135deg, #64B5F6, #42A5F5);
    color: white;
    padding: 100px 20px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 500;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #4CAF50;
    color: white;
}

.btn-primary:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76,175,80,0.3);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--light-color);
}

/* 区块标题 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
}

/* 服务区域 */
.services {
    padding: 80px 20px;
    background: #f9f9f9;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* 加盟预览 */
.join-preview {
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.join-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.join-benefits {
    list-style: none;
    margin: 2rem 0;
    font-size: 1.2rem;
}

.join-benefits li {
    margin: 0.5rem 0;
}

/* 关于我们 */
.about {
    padding: 80px 20px;
}

.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* 联系我们 */
.contact {
    padding: 80px 20px;
    background: #f9f9f9;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.contact-item h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.contact-item p {
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* 页面Hero */
.page-hero {
    background: linear-gradient(135deg, #64B5F6, #42A5F5);
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.page-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* 加盟优势 */
.join-advantages {
    padding: 80px 20px;
}

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

.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

/* 加盟流程 */
.join-process {
    padding: 80px 20px;
    background: #f9f9f9;
}

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

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* 加盟条件 */
.join-conditions {
    padding: 80px 20px;
}

.conditions-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.condition-item {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.condition-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.condition-item ul {
    list-style: none;
}

.condition-item li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.condition-item li:last-child {
    border-bottom: none;
}

/* 申请表单 */
.join-form {
    padding: 80px 20px;
    background: #f9f9f9;
}

.application-form {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.application-form button {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    margin-top: 1rem;
}

/* 页脚 */
footer {
    background: var(--dark-color);
    color: white;
    text-align: center;
    padding: 2rem;
}

/* 平台入口 */
.platform-entry {
    padding: 80px 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.platform-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.qrcode-container {
    text-align: center;
    flex-shrink: 0;
}

.qrcode-img {
    width: 250px;
    height: 250px;
    border: 10px solid white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.qrcode-img:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.qrcode-tip {
    margin-top: 1.5rem;
    font-size: 1.2rem;
    color: var(--dark-color);
    font-weight: 500;
}

.platform-description {
    flex: 1;
}

.platform-description h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.platform-description > p {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.platform-features {
    list-style: none;
}

.platform-features li {
    padding: 0.8rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid #eee;
}

.platform-features li:last-child {
    border-bottom: none;
}

.platform-features li:before {
    content: "✓ ";
    color: #4CAF50;
    font-weight: bold;
    margin-right: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .services-grid,
    .advantages-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }

    .platform-content {
        flex-direction: column;
        gap: 2.5rem;
        text-align: center;
    }

    .qrcode-img {
        width: 220px;
        height: 220px;
        border-width: 8px;
    }

    .platform-description h3 {
        font-size: 1.7rem;
    }

    .platform-features li {
        font-size: 1rem;
        text-align: left;
    }
}