* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}
body {
    background-color: #fbfafc;
    color: #333;
    padding-bottom: 60px; /* 新增：避免固定引导条遮挡底部内容 */
}
.header {
    background-color: #fff;
    box-shadow: 0 2px 15px rgba(0,0,0,0.04);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 999;
}
.header .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 20px;
    font-weight: bold;
    background: linear-gradient(90deg, #8c7ff2, #6c5dd3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 高级渐变紫背景 */
.hero {
    padding: 70px 0;
    text-align: center;
    background: linear-gradient(135deg, #a890f7 0%, #8c7ff2 50%, #6c5dd3 100%);
    color: #fff;
}
.hero .container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}
.hero h1 {
    font-size: 34px;
    margin-bottom: 20px;
    font-weight: 600;
}
.hero p {
    font-size: 18px;
    margin-bottom: 32px;
    line-height: 1.7;
    opacity: 0.95;
}
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 40px;
    max-width: 440px;
    margin-left: auto;
    margin-right: auto;
}
.feature-item {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    padding: 26px 16px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.2);
}
.feature-item h3 {
    margin-bottom: 8px;
    font-size: 16px;
    font-weight: 600;
}
.feature-item p {
    opacity: 0.9;
    font-size: 14px;
}

/* 小程序模块 */
.mini-program {
    padding: 60px 0;
    background-color: #fff;
}
.mini-program .container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.mini-program h2 {
    font-size: 28px;
    margin-bottom: 36px;
    color: #333;
    font-weight: 600;
}
.qrcode-box {
    display: inline-block;
    background: #f8f7ff;
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(108, 93, 211, 0.08);
}
.qrcode-box img {
    width: 200px;
    height: 200px;
    margin-bottom: 16px;
    border-radius: 8px;
}
.qrcode-box p {
    font-size: 15px;
    color: #666;
}

/* 教程 */
.tutorial {
    padding: 50px 0;
    background-color: #fbfafc;
}
.tutorial .container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}
.tutorial h2 {
    font-size: 26px;
    color: #333;
    text-align: center;
    margin-bottom: 36px;
    font-weight: 600;
}
.tutorial-box {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}
.tutorial-item {
    background: #fff;
    padding: 24px;
    border-radius: 14px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 6px 20px rgba(108, 93, 211, 0.05);
}
.tutorial-item h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: #7c69e6;
    font-weight: 600;
}
.tutorial-item p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

/* 支持平台 */
.support {
    padding: 50px 0;
    background-color: #fff;
}
.support .container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.support h2 {
    font-size: 26px;
    color: #333;
    margin-bottom: 32px;
    font-weight: 600;
}
.platform-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}
.platform-item {
    background: #f3f0ff;
    color: #7c69e6;
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
}

/* AI教程 */
.ai-tutorial {
    padding: 60px 0;
    background-color: #fbfafc;
}
.ai-tutorial .container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}
.ai-tutorial h2 {
    font-size: 26px;
    color: #333;
    text-align: center;
    margin-bottom: 32px;
    font-weight: 600;
}
.ai-tutorial p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
}
.ai-tutorial h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 16px;
    font-weight: 600;
}
.ai-tutorial ul, .ai-tutorial ol {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    padding-left: 22px;
    margin-bottom: 24px;
}
.ai-tutorial li {
    margin-bottom: 10px;
}
.ai-tutorial strong {
    color: #7c69e6;
    font-weight: 600;
}

/* 底部引导条 */
.fixed-guide {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(90deg, #8c7ff2 0%, #6c5dd3 100%);
    color: #fff;
    padding: 14px 0;
    text-align: center;
    font-size: 15px;
    z-index: 9999;
    box-shadow: 0 -4px 12px rgba(108, 93, 211, 0.15);
}

/* 友情链接样式 */
.friend-link {
    padding: 40px 0;
    background-color: #fff;
    border-top: 1px solid #f0eff7;
}
.friend-link .container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.friend-link h2 {
    font-size: 22px;
    color: #333;
    margin-bottom: 24px;
    font-weight: 600;
}
.link-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    justify-content: center;
    align-items: center;
}
.link-item {
    color: #6c5dd3; /* 和页面主色调保持一致 */
    font-size: 14px;
    text-decoration: none; /* 去掉下划线 */
    transition: color 0.3s ease;
    padding: 4px 8px;
}
.link-item:hover {
    color: #8c7ff2; /* hover时颜色变浅 */
    text-decoration: none; /* 确保hover时也没有下划线 */
}

/* 响应式适配 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 26px;
    }
    .hero p {
        font-size: 16px;
    }
    .feature-list {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    .feature-item {
        padding: 22px 12px;
    }
    .mini-program h2,
    .tutorial h2,
    .support h2,
    .ai-tutorial h2 {
        font-size: 24px;
    }
    /* 友情链接移动端适配 */
    .friend-link h2 {
        font-size: 20px;
    }
    .link-item {
        font-size: 13px;
        padding: 3px 6px;
    }
    .link-list {
        gap: 8px 12px;
    }
}