/* ============================================================
   Fresh —— Bootstrap 5 增强层
   结构与组件交给 Bootstrap；这里只放品牌视觉（橙色强调）与少量定制
   ============================================================ */

:root {
    --fresh-accent: #ff6d1f;
    --fresh-accent-dark: #e65f10;
    --fresh-accent-soft: #fff3ea;
    --bs-body-font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Segoe UI", "Microsoft YaHei", sans-serif;
}

* { scroll-margin-top: 76px; }

::selection { background: #ffd9c2; }

/* 全站链接不使用下划线：可点击性靠颜色变化表达（悬停转品牌橙，键盘焦点另有 outline） */
a { text-decoration: none; }

a:hover { color: var(--fresh-accent); }

:focus-visible { outline: 2px solid var(--fresh-accent); outline-offset: 2px; }

/* ---------- 导航栏 ---------- */

.site-navbar {
    z-index: 1030;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bs-border-color);
}

.site-navbar .navbar-brand {
    letter-spacing: -.3px;
    color: var(--bs-body-color);
}

.site-navbar .nav-link {
    color: var(--bs-secondary-color);
    padding: .35rem .75rem;
    border-radius: 8px;
    font-size: .9375rem;
    font-weight: 500;
    transition: color .15s ease, background-color .15s ease;
}

.site-navbar .nav-link:hover {
    color: var(--bs-body-color);
    background: var(--bs-tertiary-bg);
}

.site-navbar .nav-link.active {
    color: var(--fresh-accent-dark);
    font-weight: 600;
    background: var(--fresh-accent-soft);
}

/* 主打入口：小程序 */
.site-navbar .nav-link-primary {
    color: var(--fresh-accent-dark);
    font-weight: 600;
}

.site-navbar .nav-link-primary:hover {
    color: var(--fresh-accent-dark);
    background: var(--fresh-accent-soft);
}

/* 分类 / 独立页之间的竖分隔线 */
.site-navbar .nav-divider {
    width: 1px;
    height: 16px;
    align-self: center;
    margin: 0 .5rem;
    background: var(--bs-border-color);
}

.site-search .form-control {
    width: 150px;
    border-radius: 999px;
}

.site-search .form-control:focus {
    border-color: var(--fresh-accent);
    box-shadow: 0 0 0 .2rem rgba(255, 109, 31, .15);
}

.site-search-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 31px;
    height: 31px;
    margin-left: .4rem;
    padding: 0;
    border: 1px solid var(--bs-border-color);
    border-radius: 999px;
    background: transparent;
    color: var(--bs-secondary-color);
    transition: color .15s ease, background-color .15s ease, border-color .15s ease;
}

.site-search-btn:hover,
.site-search-btn:focus-visible {
    border-color: var(--fresh-accent);
    background: var(--fresh-accent);
    color: #fff;
}

/* ---------- 折叠状态（窄屏） ---------- */

@media (max-width: 1199.98px) {
    .site-navbar .navbar-collapse {
        margin-top: .5rem;
        padding-top: .5rem;
        border-top: 1px solid var(--bs-border-color);
    }

    .site-navbar .nav-link { padding: .5rem .6rem; }

    /* 竖排时不需要分隔线，改用分类与页面之间的留白 */
    .site-navbar .nav-divider {
        width: auto;
        height: 1px;
        margin: .35rem .6rem;
        align-self: stretch;
    }

    .site-search { margin-top: .6rem; }
    .site-search .form-control { width: auto; flex: 1; }
}

/* ---------- 首屏 ---------- */

.hero-title { letter-spacing: -.5px; }

.hero-slogan { font-weight: 600; }

.hero-intro {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
    font-size: .95rem;
    line-height: 1.8;
}

/* ---------- 产品卡片 ---------- */

.product-card {
    border-color: var(--bs-border-color);
    border-radius: 14px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

/* 卡片正文纵向排列，把 CTA 压到卡片底部，三张卡片按钮对齐 */
.product-card .card-body {
    display: flex;
    flex-direction: column;
    padding: .95rem 1rem;
}

/* 图标与名称同一行，省掉一整行高度 */
.product-head {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: .5rem;
}

.product-head .product-name { line-height: 1.35; }

/* 产品名带链接，但仍沿用卡片正文色：去掉浏览器默认的蓝字与下划线，悬停才转品牌橙 */
.product-name a {
    color: var(--bs-body-color);
    text-decoration: none;
    transition: color .18s ease;
}

.product-name a:hover { color: var(--fresh-accent); }

/* 二维码与搜索按钮同一行（二维码 64px 时整行放得下，不会在各卡片间错行） */
.product-foot {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .7rem;
    margin-top: auto;
}

.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(17, 20, 24, .07);
    border-color: transparent;
}

.product-icon {
    flex: 0 0 auto;
    border-radius: 10px;
}

/* 简介只显示 3 行，超出省略；完整文本仍在 HTML 里，不影响收录 */
.product-summary {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: .875rem;
    line-height: 1.7;
    margin-bottom: .85rem;
}

/* 微信搜索引导：产品卡片与文末推荐的主 CTA */
.product-cta {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--fresh-accent);
    color: #fff;
    font-size: .9375rem;
    line-height: 1.3;
    padding: 7px 16px;
    border-radius: 999px;
}

.product-cta-label { font-size: .8125rem; opacity: .85; }

.product-cta-keyword { font-weight: 700; letter-spacing: -.2px; }

.product-cta--sm {
    font-size: .875rem;
    padding: 5px 13px;
}

.product-cta--sm .product-cta-label { font-size: .75rem; }

.product-qr {
    border-radius: 10px;
    padding: 4px;
    background: #fff;
}

/* 小程序码：点击放大 */
.product-scan-btn {
    position: relative;
    display: inline-block;
    padding: 0;
    border: 0;
    background: none;
    line-height: 0;
    cursor: zoom-in;
}

.product-scan-btn .product-qr { transition: transform .2s ease, box-shadow .2s ease; }

.product-scan-btn:hover .product-qr,
.product-scan-btn:focus-visible .product-qr {
    transform: scale(1.06);
    box-shadow: 0 6px 18px rgba(17, 20, 24, .12);
}

/* 放大镜角标：提示可以点开 */
.product-qr-zoom {
    position: absolute;
    right: -5px;
    bottom: -5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--fresh-accent);
    color: #fff;
    box-shadow: 0 1px 4px rgba(17, 20, 24, .2);
}

/* 放大弹层 */
.fresh-qr-dialog { max-width: 340px; }

.fresh-qr-large {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 12px;
}

/* 小程序码 + 下方小字说明 */
.product-scan {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.product-scan-tip {
    font-size: .7rem;
    line-height: 1.2;
    color: var(--bs-secondary-color);
}

/* ---------- 分页 ---------- */

/* Bootstrap 默认是蓝色，这里整体换成品牌橙 */
.pagination {
    --bs-pagination-color: var(--fresh-accent-dark);
    --bs-pagination-hover-color: var(--fresh-accent-dark);
    --bs-pagination-hover-bg: var(--fresh-accent-soft);
    --bs-pagination-hover-border-color: var(--fresh-accent);
    --bs-pagination-focus-color: var(--fresh-accent-dark);
    --bs-pagination-focus-bg: var(--fresh-accent-soft);
    --bs-pagination-focus-box-shadow: 0 0 0 .2rem rgba(255, 109, 31, .15);
    --bs-pagination-active-color: #fff;
    --bs-pagination-active-bg: var(--fresh-accent);
    --bs-pagination-active-border-color: var(--fresh-accent);
    --bs-pagination-disabled-color: var(--bs-secondary-color);
    --bs-pagination-disabled-bg: transparent;
    --bs-pagination-disabled-border-color: var(--bs-border-color);
    gap: .35rem;
}

/* 每项做成独立圆角块（Bootstrap 默认只在首尾加圆角、并靠负边距拼接） */
.pagination .page-item .page-link {
    margin-left: 0;
    border-radius: 999px;
    min-width: 34px;
    padding: .3rem .7rem;
    text-align: center;
    font-size: .875rem;
    transition: color .15s ease, background-color .15s ease, border-color .15s ease;
}

/* ---------- 文章列表（list-group-flush） ---------- */

.list-group-flush > .list-group-item { border-color: var(--bs-border-color); }

/* 列表项：左图右文 */
.post-item {
    display: flex;
    gap: 1.15rem;
    align-items: flex-start;
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
}

.post-item-thumb {
    flex: 0 0 auto;
    width: 200px;
    border-radius: 10px;
    overflow: hidden;
    background: var(--bs-tertiary-bg);
}

.post-item-thumb img {
    display: block;
    width: 100%;
    height: 120px;
    object-fit: cover;
    transition: transform .25s ease;
}

.post-item-thumb:hover img { transform: scale(1.04); }

.post-item-body { min-width: 0; }

/* 标题最多两行、摘要最多两行，列表才扫得动；完整正文仍在文章页 */
.post-item-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 1.125rem;
    line-height: 1.5;
}

/* 日期 / 分类挤在一行，不要折行 */
.post-item-meta {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 575.98px) {
    .post-item {
        gap: .85rem;
        padding-top: .95rem;
        padding-bottom: .95rem;
    }

    .post-item-thumb { width: 110px; }
    .post-item-thumb img { height: 74px; }

    /* 手机屏窄，评论数占位又没信息量，直接不显示 */
    .post-item-comments { display: none; }

    .post-item-title { font-size: 1.0625rem; }
    .post-excerpt { -webkit-line-clamp: 2; }
}

.post-item-title a { color: var(--bs-body-color); }

.post-item-title a:hover { color: var(--fresh-accent); }

.post-item-meta a { color: var(--bs-secondary-color); }
.post-item-meta a:hover { color: var(--fresh-accent); }

.post-item-meta .dot { margin: 0 6px; }

.post-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: .5rem 0 0;
    color: var(--bs-secondary-color);
    font-size: .9rem;
    line-height: 1.8;
}

.empty-tip { list-style: none; }

/* ---------- 文章页 ---------- */

/* 比 .container 宽一些，给左侧目录留出边距 */
.post-layout { max-width: 1240px; }

.post-main { min-width: 0; }

/* 正文永远居中（窄屏没有目录时也一样） */
.post-single,
.post-near,
.post-comments {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.post-toc-col { display: none; }

/* 目录卡片 */
.post-toc {
    padding: .9rem 1rem 1rem;
    background: var(--bs-tertiary-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 12px;
}

.post-toc-title {
    margin: 0 0 .6rem;
    padding-bottom: .55rem;
    border-bottom: 1px solid var(--bs-border-color);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .04em;
    color: var(--bs-secondary-color);
}

.post-toc-link {
    display: block;
    padding: .32rem .55rem;
    border-radius: 6px;
    font-size: .8125rem;
    line-height: 1.5;
    color: var(--bs-secondary-color);
    text-decoration: none;
    transition: color .15s ease, background-color .15s ease;
}

.post-toc-link:hover {
    color: var(--bs-body-color);
    background: var(--bs-secondary-bg);
}

.post-toc-link.is-active {
    color: var(--fresh-accent-dark);
    background: var(--fresh-accent-soft);
    font-weight: 600;
}

.post-toc-link.is-sub {
    padding-left: 1.15rem;
    font-size: .78rem;
}

@media (min-width: 1200px) {
    .post-layout {
        display: grid;
        /* 中间固定正文宽度、两侧等分 → 正文始终在页面正中，目录落在左边距里 */
        grid-template-columns: minmax(0, 1fr) 760px minmax(0, 1fr);
        column-gap: 2rem;
    }

    .post-toc-col {
        display: block;
        grid-column: 1;
        justify-self: end;
        width: 200px;
        padding-top: .35rem;
    }

    .post-main { grid-column: 2; }

    /* sticky 要生效，外面这层必须撑满整行高度（不能是 align-items: start） */
    .post-toc {
        position: sticky;
        top: 92px;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        overscroll-behavior: contain;
    }
}

/* 文章主图 */
.post-cover {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 1.5rem;
    border-radius: 12px;
}

.post-single { max-width: 760px; }

.post-comments { max-width: 760px; margin-top: 3rem; }

/* 目录跳转的滚动动画（尊重系统「减少动态效果」设置） */
@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}

.post-breadcrumb { margin-bottom: .75rem; }
.post-breadcrumb a { color: var(--bs-secondary-color); }
.post-breadcrumb a:hover { color: var(--fresh-accent); }
.post-breadcrumb .dot { margin: 0 6px; }

.post-updated { margin-bottom: 0; }

.post-title { font-size: clamp(24px, 4vw, 32px); line-height: 1.4; letter-spacing: -.3px; }

.post-meta .dot { margin: 0 6px; }
.post-meta a { color: var(--bs-secondary-color); }
.post-meta a:hover { color: var(--fresh-accent); }

.post-content { font-size: 1.03rem; line-height: 1.9; word-wrap: break-word; overflow-wrap: break-word; }

.post-content h2, .post-content h3, .post-content h4 { line-height: 1.4; margin-top: 2.2rem; margin-bottom: .8rem; }

.post-content img { border-radius: 10px; max-width: 100%; height: auto; }

/* 正文内链接：同样不用下划线，靠品牌橙与正文区分 */
.post-content a { color: var(--fresh-accent-dark); }
.post-content a:hover { color: var(--fresh-accent); }

.post-content blockquote {
    margin: 1.2rem 0;
    padding: 12px 18px;
    border-left: 3px solid var(--fresh-accent);
    background: var(--bs-tertiary-bg);
    border-radius: 0 10px 10px 0;
    color: var(--bs-secondary-color);
}

.post-content blockquote p:last-child { margin-bottom: 0; }

.post-content pre {
    background: #191b1f;
    color: #e5e7eb;
    padding: 16px 18px;
    border-radius: 10px;
    overflow-x: auto;
    font-size: .875rem;
    line-height: 1.7;
}

.post-content code {
    background: var(--bs-tertiary-bg);
    padding: 2px 6px;
    border-radius: 6px;
    font-size: .88em;
}

.post-content pre code { background: none; padding: 0; color: inherit; }

.post-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.2rem 0;
    font-size: .9rem;
}

.post-content th,
.post-content td { border: 1px solid var(--bs-border-color); padding: 8px 12px; text-align: left; }

.post-content th { background: var(--bs-tertiary-bg); }

.post-content hr { border-top: 1px solid var(--bs-border-color); margin: 2rem 0; }

.post-tags:empty { display: none; }
.post-tags a { color: var(--bs-secondary-color); }
.post-tags a:hover { color: var(--fresh-accent); }

/* ---------- 文末小程序推荐 ---------- */

.promo-box { background: var(--bs-tertiary-bg); }

.promo-scan { line-height: 0; }

/* ---------- 评论 ---------- */

#comments ol { list-style: none; margin: 0; padding: 0; }
#comments ol ol { padding-left: 26px; border-left: 1px solid var(--bs-border-color); }

#comments li > div { padding: 14px 0; }

#comments .comment-author {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .875rem;
}

#comments .comment-author img { border-radius: 50%; }

#comments .comment-author cite { font-style: normal; font-weight: 600; }

#comments .comment-meta { color: var(--bs-secondary-color); font-size: .8125rem; }

#comments .comment-content { margin-top: 6px; font-size: .95rem; }

#comments .comment-reply { margin-top: 6px; font-size: .8125rem; }

label.required::after { content: " *"; color: var(--fresh-accent); }

#comment-form .btn-accent {
    background: var(--fresh-accent);
    border-color: var(--fresh-accent);
    color: #fff;
    padding: .375rem 1.75rem;
}

#comment-form .btn-accent:hover { background: var(--fresh-accent-dark); border-color: var(--fresh-accent-dark); color: #fff; }

/* ---------- 小程序介绍页 ---------- */

.app-page { max-width: 760px; margin-left: auto; margin-right: auto; }

.app-hero {
    margin-top: 1rem;
    padding: 1.5rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 16px;
    background: var(--bs-tertiary-bg);
}

.app-hero-head {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.app-icon {
    flex: 0 0 auto;
    border-radius: 14px;
    background: #fff;
}

.app-name {
    font-size: clamp(22px, 3.2vw, 28px);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -.3px;
    margin: 0 0 .35rem;
}

.app-summary { font-size: .9375rem; line-height: 1.75; }

.app-cta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--bs-border-color);
}

/* 底部「其他小程序」互推 */
.app-others { max-width: 760px; margin: 2.5rem auto 0; }

.app-others-title { margin-bottom: .75rem; }

.app-other-card {
    border-color: var(--bs-border-color);
    transition: border-color .18s ease, background-color .18s ease;
}

.app-other-card:hover {
    border-color: var(--fresh-accent);
    background: var(--fresh-accent-soft);
}

.app-other-card strong { color: var(--bs-body-color); }

.app-other-summary {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: .8125rem;
    line-height: 1.6;
    color: var(--bs-secondary-color);
}

.min-w-0 { min-width: 0; }

@media (max-width: 575.98px) {
    .app-hero { padding: 1.15rem; }
    .app-hero-head { gap: .8rem; }
    .app-icon { width: 52px; height: 52px; }
}

/* ---------- 上一篇 / 下一篇 ---------- */

.post-near {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    max-width: 760px;
    margin-top: 2rem;
}

.near-item {
    display: block;
    flex: 1 1 0;
    min-width: 0;
    padding: .7rem 1rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 12px;
    transition: border-color .15s ease, background-color .15s ease;
}

.near-item:empty { display: none; }

.near-item:hover {
    border-color: var(--fresh-accent);
    background: var(--fresh-accent-soft);
}

/* 只有一侧有相邻文章时，保持半宽并靠到对应的一侧 */
.near-item:only-child { flex-grow: 0; flex-basis: calc(50% - .375rem); }
.near-next:only-child { margin-left: auto; }

.near-next { text-align: right; }

.near-label {
    display: block;
    margin-bottom: .2rem;
    font-size: .75rem;
    color: var(--bs-secondary-color);
}

.near-item a {
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: var(--bs-body-color);
    font-weight: 500;
    text-decoration: none;
}

.near-item:hover a { color: var(--fresh-accent-dark); }

/* ---------- 页脚 ---------- */

.site-footer { border-top: 1px solid var(--bs-border-color); }

.footer-product { color: var(--bs-secondary-color); font-size: .875rem; text-decoration: none; }
.footer-product:hover { color: var(--bs-body-color); }

.footer-beian a { color: var(--bs-secondary-color); text-decoration: none; }
.footer-beian a:hover { color: var(--fresh-accent); }