* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}
body {
    color: #333;
    background: #f8f9fa;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
/* 头部导航 */
header {
    background: #2563eb;
    color: #fff;
    padding: 16px 0;
}
.header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo h1 {
    font-size: 24px;
    font-weight: 600;
}
nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 28px;
    font-size: 16px;
}
nav a:hover {
    color: #ffdd70;
}
nav a.active {
    color: #ffdd70;
    font-weight: 600;
}
/* 首屏banner */
.banner {
    background: linear-gradient(135deg, #e0f2fe, #f0e7ff);
    padding: 60px 0;
    text-align: center;
}
.banner h2 {
    font-size: 36px;
    color: #1e40af;
    margin-bottom: 16px;
}
.banner p {
    font-size: 18px;
    color: #4b5563;
    max-width: 700px;
    margin: 0 auto 30px;
    line-height: 1.7;
}
.banner-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}
.banner-btn {
    display: inline-block;
    padding: 14px 36px;
    background: #2563eb;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 17px;
    transition: 0.3s;
}
.banner-btn:hover {
    background: #1d4ed8;
}
.download-btn {
    background: #10b981;
}
.download-btn:hover {
    background: #059669;
}
.banner-img {
    width: 70%;
    margin-top: 40px;
}
/* 通用标题 */
.section-title {
    text-align: center;
    font-size: 28px;
    margin: 60px 0 40px;
    color: #1f2937;
}
/* 核心优势区块 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 70px;
}
.feature-card {
    background: #fff;
    padding: 30px 24px;
    border-radius: 12px;
    box-shadow: 0 2px 12px #e2e8f0;
}
.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #2563eb;
}
.feature-card p {
    line-height: 1.7;
    color: #52525b;
}
/* 系统功能亮点 */
.func-wrap {
    background: #fff;
    padding: 50px 0;
}
.func-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}
.func-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.func-icon {
    width: 48px;
    height: 48px;
    background: #dbeafe;
    border-radius: 8px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-weight: bold;
    font-size: 22px;
}
.func-text h4 {
    font-size: 18px;
    margin-bottom: 8px;
}
.func-text p {
    color: #666;
    line-height: 1.6;
}
/* 合作渠道板块 */
.channel-wrap {
    padding: 50px 0;
}
.channel-box {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}
.channel-item {
    background: #fff;
    padding: 20px 30px;
    border-radius: 10px;
    min-width: 160px;
    text-align: center;
    box-shadow: 0 1px 8px #e5e7eb;
}
/* 最新动态/文章通用 */
.news-wrap {
    background: #f0f7ff;
    padding: 50px 0;
}
.news-item {
    background: #fff;
    padding: 22px;
    border-radius: 10px;
    margin-bottom: 20px;
}
.news-date {
    color: #9ca3af;
    font-size: 14px;
    margin-bottom: 8px;
}
.news-title {
    font-size: 19px;
    color: #2563eb;
    text-decoration: none;
}
.news-title:hover {
    text-decoration: underline;
}
.news-desc {
    margin-top: 10px;
    line-height: 1.7;
    color: #4b5563;
}
.more-article {
    text-align: center;
    margin-top: 30px;
}
.more-article a {
    color: #2563eb;
    font-size: 16px;
}
/* 用户评价 */
.comment-wrap {
    padding: 50px 0;
}
.comment-card {
    background: #fff;
    padding: 26px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 2px 10px #eee;
}
.comment-text {
    line-height: 1.8;
    color: #374151;
}
.comment-author {
    margin-top: 14px;
    text-align: right;
    color: #6b7280;
}
/* 关于我们 */
.about-wrap {
    background: #fff;
    padding: 50px 0;
}
.about-text {
    line-height: 1.8;
    font-size: 16px;
    color: #444;
}
/* 联系我们 */
.contact-wrap {
    padding: 50px 0;
    background: #1e293b;
    color: #fff;
}
.contact-info p {
    font-size: 17px;
    margin: 12px 0;
}
.contact-info a {
    color: #7dd3fc;
    text-decoration: none;
}
/* 页脚 */
footer {
    background: #0f172a;
    color: #94a3b8;
    text-align: center;
    padding: 24px 0;
}
/* 文章列表页专用 */
.article-page .news-wrap {
    min-height: 600px;
}

/* ====================== 新增：版本套餐页面样式（已修复对齐问题） ====================== */
.package-wrap {
    padding: 60px 0;
    background: #f8f9fa;
}
/* 核心修复：网格等高对齐 */
.package-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    /* 所有卡片强制等高、纵向拉伸对齐 */
    grid-auto-rows: 1fr;
}
.package-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: 0.3s ease;
    /* 卡片内部弹性布局，实现头部、内容、底部自动分布 */
    display: flex;
    flex-direction: column;
    height: 100%;
}
.package-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
/* 热门标识 */
.package-card.hot {
    border: 2px solid #2563eb;
    position: relative;
}
.package-card.hot::before {
    content: '热门推荐';
    position: absolute;
    top: 0;
    right: 0;
    background: #2563eb;
    color: #fff;
    font-size: 12px;
    padding: 4px 12px;
    border-bottom-left-radius: 10px;
}
.package-head {
    padding: 25px;
    text-align: center;
    background: #f8fafc;
    border-bottom: 1px solid #eee;
    flex-shrink: 0;
}
.package-head h3 {
    font-size: 22px;
    color: #1f2937;
    margin-bottom: 10px;
}
.package-price {
    font-size: 32px;
    font-weight: bold;
    color: #2563eb;
}
.package-price span {
    font-size: 14px;
    color: #999;
    font-weight: normal;
}
.package-body {
    padding: 30px 25px;
    /* 主体内容自动填充剩余空间，撑开卡片高度 */
    flex: 1;
}
.package-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f5f5f5;
}
.package-item:last-child {
    border: none;
}
.package-item .yes {
    color: #10b981;
    margin-right: 12px;
    font-weight: bold;
}
.package-item .no {
    color: #ef4444;
    margin-right: 12px;
    font-weight: bold;
}
.package-foot {
    padding: 20px 25px;
    text-align: center;
    border-top: 1px solid #eee;
    /* 底部按钮固定在卡片最下方 */
    flex-shrink: 0;
}
.package-btn {
    display: inline-block;
    width: 100%;
    padding: 12px 0;
    background: #2563eb;
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    transition: 0.3s;
}
.package-btn:hover {
    background: #1d4ed8;
}
.package-btn.free {
    background: #6b7280;
}
.package-btn.free:hover {
    background: #4b5563;
}
.package-btn.top {
    background: #10b981;
}
.package-btn.top:hover {
    background: #059669;
}

/* 响应式适配 */
@media (max-width:768px) {
    .feature-list {
        grid-template-columns: 1fr;
    }
    .func-grid {
        grid-template-columns: 1fr;
    }
    .package-grid {
        grid-template-columns: 1fr;
    }
    .header-wrap {
        flex-direction: column;
        gap: 16px;
    }
    nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
    nav a {
        margin: 0;
    }
    .banner h2 {
        font-size: 26px;
    }
}