/* ========== 全局重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f7f9fc;
    color: #222;
    line-height: 1.65;
}
a {
    color: #2563eb;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    height: auto;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ========== 按钮通用 .btn ========== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #2563eb;
    color: #fff !important;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 15px;
    transition: background 0.2s ease;
    text-decoration: none !important;
}
.btn:hover {
    background-color: #1d4ed8;
    text-decoration: none !important;
}
.btn-blog {
    background-color: #0891b2;
}
.btn-blog:hover {
    background-color: #0e7490;
}

/* ========== 顶部导航 site-header ========== */
.site-header {
    background-color: #ffffff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    position: sticky;
    top:0;
    z-index: 90;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap:12px;
    padding-top:12px;
    padding-bottom:12px;
}
.logo img {
    height:40px;
}
.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.main-nav a {
    font-size: 14.5px;
    padding:4px 6px;
}

/* ========== 全局悬浮微信按钮 ========== */
.fixed-wechat-btn {
    position: fixed;
    right: 20px;
    bottom: 30px;
    z-index: 95;
}
.fixed-wechat-btn a {
    box-shadow: 0 4px 12px rgba(37,99,235,0.35);
}

/* ========== 弹窗模态框 wechat弹窗 ========== */
.modal-mask {
    position: fixed;
    inset:0;
    background-color: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index:100;
    padding:16px;
    display: none;
}
.modal-mask.show {
    display: flex;
}
.modal-box {
    background:#fff;
    border-radius:12px;
    max-width:440px;
    width:100%;
    padding:28px 24px;
    text-align:center;
}
.modal-box h3 {
    font-size:20px;
    margin-bottom:10px;
}
.modal-box p {
    color:#555;
    margin-bottom:18px;
}
.qrcode-box img {
    width:220px;
    margin-bottom:8px;
}
.qrcode-box small {
    color:#666;
    display:block;
    margin-bottom:22px;
}
.modal-close {
    padding:9px 24px;
    border-radius:6px;
    border:1px solid #ccc;
    background:#f3f4f6;
    cursor:pointer;
    font-size:15px;
}

/* ========== main容器通用间距 ========== */
main.container {
    padding-top:32px;
    padding-bottom:48px;
}
section {
    margin-bottom:42px;
}
.block-title {
    font-size:22px;
    margin-bottom:20px;
}

/* ========== 子页面公共板块（fill脚本渲染出来的） ========== */
.page-top-title {
    background:#ffffff;
    padding:26px 22px;
    border-radius:10px;
    box-shadow:0 1px 3px rgba(0,0,0,0.06);
}
.page-top-title h1 {
    font-size:26px;
    margin-bottom:10px;
}
.page-desc {
    color:#444;
    margin-bottom:18px;
}
.page-buttons {
    display:flex;
    gap:12px;
    flex-wrap:wrap;
}

/* 搜索块 search-block */
.search-block {
    background:#fff;
    padding:22px;
    border-radius:10px;
    box-shadow:0 1px 3px rgba(0,0,0,0.06);
}
.search-box {
    display:flex;
    gap:8px;
    margin-bottom:16px;
}
.search-input {
    flex:1;
    padding:11px 14px;
    border:1px solid #d1d5db;
    border-radius:6px;
    font-size:15px;
}
.search-submit {
    padding:11px 18px;
    background-color:#2563eb;
    color:white;
    border:none;
    border-radius:6px;
    cursor:pointer;
}
.hot-tag-group {
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}
.hot-tag {
    background-color:#eff6ff;
    color:#2563eb;
    padding:5px 12px;
    border-radius:20px;
    font-size:14px;
}

/* 分类卡片块 category-card-block */
.category-card-block {
    background:#fff;
    padding:24px 22px;
    border-radius:10px;
    box-shadow:0 1px 3px rgba(0,0,0,0.06);
}
.card-wrap {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(260px,1fr));
    gap:18px;
}
.card-item {
    border:1px solid #e5e7eb;
    padding:18px;
    border-radius:8px;
}
.card-item h3 {
    margin-bottom:10px;
    font-size:17px;
}
.site-ul li {
    margin-bottom:8px;
}
.site-desc {
    font-size:14px;
    color:#555;
    display:block;
    margin-top:4px;
}

/* 公众号福利 wechat-benefit-block */
.wechat-benefit-block {
    background-color:#fffbeb;
    border:1px solid #fcd34d;
    padding:24px 22px;
    border-radius:10px;
}
.wechat-benefit-block h2 {
    margin-bottom:10px;
}

/* 返回上级 related-link-block */
.related-link-block {
    background:#fff;
    padding:24px 22px;
    border-radius:10px;
    box-shadow:0 1px 3px rgba(0,0,0,0.06);
}
.matrix-grid {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(240px,1fr));
    gap:18px;
}
.matrix-card {
    border:1px solid #e5e7eb;
    padding:18px;
    border-radius:8px;
}
.matrix-card h3 {
    margin-bottom:10px;
}

/* ========== 首页专属板块样式（根index.html） ========== */
.hero-block {
    background:#ffffff;
    padding:36px 24px;
    border-radius:12px;
    text-align:center;
    box-shadow:0 1px 4px rgba(0,0,0,0.06);
}
.hero-block h1 {
    font-size:28px;
    margin-bottom:14px;
}
.hero-desc {
    max-width:840px;
    margin:0 auto 24px;
    color:#444;
    font-size:16px;
}
.hero-buttons {
    display:flex;
    gap:14px;
    justify-content:center;
    flex-wrap:wrap;
}

.core-category-block .card-wrap,
.blog-block .blog-grid,
.tools-block .tools-grid {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(260px,1fr));
    gap:20px;
}
.core-category-block .card-item,
.blog-card,
.tool-card {
    background:#fff;
    padding:22px;
    border-radius:10px;
    box-shadow:0 1px 3px rgba(0,0,0,0.06);
}
.card-tip {
    font-size:14px;
    color:#666;
    margin:10px 0 14px;
}

.calendar-block,
.update-block,
.season-carousel-block,
.hot-site-block,
.matrix-block,
.service-block,
.about-box {
    background:#fff;
    padding:24px 22px;
    border-radius:10px;
    box-shadow:0 1px 3px rgba(0,0,0,0.06);
}
.carousel-wrap {
    display:flex;
    align-items:center;
    gap:12px;
}
.carousel-list {
    flex:1;
}
.carousel-item {
    padding:8px 0;
}
.link-text {
    margin-left:10px;
}
.season-item {
    padding:10px 0;
}
.update-list li {
    padding:7px 0;
}
.tip-text {
    color:#d97706;
    font-size:14px;
}
.site-card-group {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(250px,1fr));
    gap:18px;
}
.site-card {
    border:1px solid #e5e7eb;
    padding:18px;
    border-radius:8px;
}
.service-grid {
    display:grid;
    grid-template-columns: repeat(auto-fill, minmax(240px,1fr));
    gap:18px;
}
.service-card {
    border:1px solid #e5e7eb;
    padding:18px;
    border-radius:8px;
}

/* ========== 页脚 site-footer ========== */
.site-footer {
    background-color:#1f2937;
    color:#d1d5db;
    padding:32px 0;
    margin-top:20px;
}
.site-footer .container {
    text-align:center;
}
.footer-links {
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    justify-content:center;
    margin:14px 0;
}
.footer-links a {
    color:#9ca3af;
    font-size:14px;
}
.footer-wechat-tip {
    font-size:14px;
    color:#9ca3af;
}

/* ========== 移动端适配 ========== */
@media(max-width:768px) {
    .site-header .container {
        flex-direction:column;
        align-items:flex-start;
    }
    .main-nav {
        gap:8px;
    }
    .hero-block h1 {
        font-size:22px;
    }
    .page-top-title h1 {
        font-size:22px;
    }
    .fixed-wechat-btn {
        right:12px;
        bottom:20px;
    }
    .search-box {
        flex-direction:column;
    }
}