/*
 * 前台内容站样式（手写，不引第三方框架）
 *
 * 为什么不用 layui / bootstrap：前台是给访客和搜索引擎看的，越轻越好。
 *
 * 设计取向（r499 改版）：参照闲鱼 PC 站的观感 ——
 *   黄色顶部条（logo + 大搜索框 + 热门词）→ 灰底内容区（左分类竖栏 + 右内容）
 *   → 高密度资料卡片墙 → 文字链导航 → 深色页脚 + 右侧悬浮工具栏。
 * 主色说明：黄色是「品牌底色」（按钮/选中/标签用），橙色只用于数值强调。
 *
 * 移动端不加载本文件（手机端走 site-mobile.css），本文件里的 @media 只兜底窄窗口。
 */

:root {
    --c-text: #222;
    --c-sub: #9096a0;
    --c-line: #f0f0f0;
    --c-bg: #f4f4f5;
    --c-white: #fff;
    /* 主黄：取自闲鱼 PC 页头部实测色值 */
    --y: #ffe80c;
    --y-deep: #ffdd00;
    --y-soft: #fff8cc;
    --y-line: #ffe680;
    /* 强调橙：价格/数值/主行动按钮 */
    --o: #ff5000;
    --o-dark: #e64800;
    --radius: 10px;
    --wrap: 1180px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    background: var(--c-bg);
    color: var(--c-text);
    font: 14px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--c-text); text-decoration: none; }
a:hover { color: var(--o); }
img { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0 0 10px; line-height: 1.35; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
h3 { font-size: 14px; font-weight: 600; }
p { margin: 0 0 10px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }

.muted { color: var(--c-sub); }
.small { font-size: 12.5px; }
.sep { margin: 0 6px; color: #d5d8dd; }
.warn { color: #b45309; }

/* ==================== 顶部黄条 ==================== */
.topbar {
    background: var(--y);
    position: sticky;
    top: 0;
    z-index: 30;
}

.topbar-inner {
    display: flex;
    align-items: center;
    gap: 22px;
    min-height: 68px;
}

.logo {
    font-size: 23px;
    font-weight: 800;
    letter-spacing: 1px;
    color: #1a1a1a;
    flex: none;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.logo:hover { color: #1a1a1a; }

.searchbox {
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    max-width: 620px;
    height: 40px;
    background: #fff;
    border-radius: 999px;
    padding: 0 4px 0 18px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .04);
}
.searchbox input {
    flex: 1;
    border: 0;
    background: transparent;
    padding: 0;
    font-size: 14px;
    outline: none;
    min-width: 0;
    color: var(--c-text);
}
.searchbox button {
    border: 0;
    background: transparent;
    color: #7a6a00;
    font-weight: 700;
    padding: 0 16px;
    height: 32px;
    border-left: 1px solid #f2f2f2;
    cursor: pointer;
    font-size: 14px;
    flex: none;
}
.searchbox button:hover { color: var(--o); }
.searchbox-lg { flex: none; width: 100%; max-width: 560px; margin: 12px auto 0; background: #fff; }

.topbar-links {
    display: flex;
    gap: 16px;
    flex: none;
    font-size: 13.5px;
}
.topbar-links a { color: #4a4a4a; }
.topbar-links a:hover { color: var(--o); }

/* 热搜词一行：给内链、给长尾词，也把「这个站有什么」说清楚 */
.hotwords {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
    padding-bottom: 9px;
    font-size: 13px;
    color: #7a6a00;
    overflow: hidden;
    max-height: 30px;
}
.hotwords a { color: #6b5c00; }
.hotwords a:hover { color: var(--o); }

/* 公告/提示条（可关） */
.notice {
    background: #fffbe6;
    border-bottom: 1px solid #f6eec2;
    font-size: 13px;
    color: #8a6d00;
    text-align: center;
    padding: 7px 40px;
    position: relative;
}
.notice b { color: var(--o); }
.notice-close {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    border: 0;
    background: transparent;
    color: #b8a466;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 6px;
}

/* ==================== 页面骨架 ==================== */
.page { background: var(--c-bg); padding: 14px 0 26px; }
.main { min-height: 50vh; }

/* 首页两栏：左分类竖栏 + 右内容 */
.page-inner {
    display: grid;
    grid-template-columns: 196px 1fr;
    gap: 14px;
    align-items: start;
}

.side {
    background: #fff;
    border-radius: var(--radius);
    padding: 8px 0;
    position: sticky;
    top: 84px;
}
.side-title {
    font-size: 13px;
    color: var(--c-sub);
    padding: 4px 16px 8px;
    margin: 0;
}
.side-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 14px;
    font-size: 14px;
    color: #333;
    border-radius: 6px;
    margin: 0 6px;
}
.side-nav a:hover { background: var(--y-soft); color: #333; }
.side-nav a.on { background: var(--y); font-weight: 600; }
.side-nav em {
    font-style: normal;
    font-size: 11.5px;
    color: var(--c-sub);
    flex: none;
}

.content { min-width: 0; }

/* ==================== 首页横幅区 ==================== */
.banner {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 14px;
    margin-bottom: 14px;
}

.promo {
    background: linear-gradient(150deg, #fff6b0 0%, var(--y) 55%, #ffd84d 100%);
    border-radius: var(--radius);
    padding: 22px 20px;
    min-height: 226px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.promo-title { font-size: 22px; margin: 0 0 8px; }
.promo-sub { color: #6b5c00; margin: 0 0 10px; }
.promo-stat { color: #6b5c00; font-size: 13.5px; margin: 0; }
.promo-stat b { color: var(--o); }
.promo-btn {
    display: inline-block;
    align-self: flex-start;
    background: #1a1a1a;
    color: #fff;
    font-size: 14px;
    padding: 8px 20px;
    border-radius: 999px;
}
.promo-btn:hover { background: var(--o); color: #fff; }

.mini-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.mini {
    background: #fff;
    border-radius: var(--radius);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    min-height: 106px;
}
.mini-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}
.mini-head a { font-size: 15px; font-weight: 600; }
.mini-head span { font-size: 12px; color: var(--c-sub); flex: none; }
.mini-links { display: flex; flex-wrap: wrap; gap: 6px; }
.mini-links a {
    font-size: 12.5px;
    color: #555;
    background: #f6f6f7;
    border-radius: 4px;
    padding: 2px 8px;
}
.mini-links a:hover { background: var(--y-soft); color: var(--o); }

/* ==================== 分类横条（tab 风格） ==================== */
.tabs {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border-radius: var(--radius);
    padding: 9px 12px;
    margin-bottom: 14px;
    overflow-x: auto;
}
.tabs a {
    padding: 5px 15px;
    border-radius: 999px;
    font-size: 14px;
    color: #333;
    white-space: nowrap;
    flex: none;
}
.tabs a:hover { color: var(--o); }
.tabs a.on { background: var(--y); font-weight: 600; }

/* ==================== 章节 ==================== */
.block { margin: 0 0 20px; }
.block-title {
    font-size: 16px;
    padding-left: 10px;
    border-left: 3px solid var(--y-deep);
    margin-bottom: 12px;
    background: #fff;
    border-radius: 6px;
    padding: 10px 12px 10px 12px;
    display: flex;
    align-items: baseline;
    gap: 10px;
}
.block-title .cat-count { font-size: 12px; color: var(--c-sub); font-weight: 400; }

/* ==================== 内页 hero（列表/详情/搜索页顶部说明） ==================== */
.hero {
    background: #fff;
    border-radius: var(--radius);
    border-left: 4px solid var(--y-deep);
    padding: 18px 20px;
    margin-bottom: 16px;
}
.hero-sm { padding: 14px 18px; }
.hero h1 { margin-bottom: 4px; }
.hero .lead { color: var(--c-sub); margin: 0 0 6px; }
.hero .stat { color: var(--c-sub); font-size: 13.5px; margin: 6px 0 0; }
.hero .stat strong { color: var(--o); }

/* ==================== 资料卡片墙 ==================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}
.card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    color: var(--c-text);
    transition: box-shadow .15s, transform .15s;
}
.card:hover {
    box-shadow: 0 6px 18px rgba(0, 0, 0, .09);
    transform: translateY(-2px);
    color: var(--c-text);
}
.card-pic {
    /* 封面是正方形（实测 800x800），卡片图也做 1:1：不裁不拉，一眼看全 */
    aspect-ratio: 1 / 1;
    background: #f7f7f8;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.card-pic img { width: 100%; height: 100%; object-fit: cover; }
/* 占位块：无主图时显示，或图片加载失败（403/404）时由 onerror 顶上来 */
.card-pic-empty {
    display: block;
    color: #b6bcc6;
    font-size: 12.5px;
    text-align: center;
    padding: 0 8px;
}
.card-body { padding: 9px 10px 11px; flex: 1; display: flex; flex-direction: column; }
.card-title {
    font-size: 13px;
    line-height: 1.5;
    margin: 0 0 6px;
    font-weight: 400;
    /* 标题两行截断：卡片高度一致，一屏能多看几条 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-tags { margin: 0 0 6px; display: flex; flex-wrap: wrap; gap: 5px; }
.tag {
    font-size: 11px;
    color: #8a6d00;
    background: #fff3bf;
    border-radius: 3px;
    padding: 1px 5px;
    white-space: nowrap;
}
.card-meta { margin: auto 0 0; color: #b9bec7; font-size: 12px; }

/* ==================== 分类卡（全部分类页用） ==================== */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}
.cat-card {
    background: #fff;
    border-radius: 8px;
    padding: 12px 14px;
}
.cat-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.cat-name { font-weight: 600; font-size: 15px; }
.cat-count { color: var(--c-sub); font-size: 12.5px; flex: none; }
.cat-sub { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.cat-sub a {
    color: #555;
    font-size: 12.5px;
    background: #f6f6f7;
    border-radius: 4px;
    padding: 2px 8px;
}
.cat-sub a:hover { background: var(--y-soft); color: var(--o); }

/* ==================== 面包屑 / 筛选 ==================== */
.breadcrumb { font-size: 13px; color: var(--c-sub); margin: 2px 0 12px; }
.breadcrumb a { color: var(--c-sub); }
.breadcrumb a:hover { color: var(--o); }

.chip-row, .filter-row { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-group { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 8px; }
.filter-label { color: var(--c-sub); font-size: 13px; margin-right: 2px; }
.chip {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 13px;
    color: #333;
    background: #fff;
}
.chip:hover { background: var(--y-soft); color: var(--o); }
.chip-on { background: var(--y) !important; color: #1a1a1a !important; font-weight: 600; }
.filter-tip { color: var(--c-sub); font-size: 12.5px; margin-top: 6px; }

/* 筛选/子分类区块也做成白卡，避免灰底上一堆裸文字 */
.block > .chip-row, .block > .filter-row { background: #fff; border-radius: 8px; padding: 12px 14px; }

/* ==================== 详情页 ==================== */
.detail {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}
.detail-main h1 { margin-bottom: 8px; font-size: 20px; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.detail-pic {
    margin: 0 0 16px;
    border-radius: var(--radius);
    overflow: hidden;
    background: #f7f7f8;
    max-width: 520px;
}
.detail-sec { margin-bottom: 18px; }
.detail-sec > h2 { font-size: 16px; padding-left: 9px; border-left: 3px solid var(--y-deep); }
.detail-sec > p { color: #333; }

/* 获取方式：改版前是一行灰底文字，现在是「下载/获取」主行动区 */
.get-box {
    background: #fffdf3;
    border: 1px dashed var(--y-line);
    border-radius: var(--radius);
    padding: 16px 18px;
}
.get-box > h2 { border-color: var(--y); }
.get-link {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 10px;
    word-break: break-all;
}
.get-link .get-url { flex: 1; min-width: 0; color: #1a73e8; font-size: 13.5px; }
.get-pwd {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border-radius: 8px;
    padding: 8px 12px;
    margin-bottom: 12px;
    font-size: 14px;
}
.get-pwd b { color: var(--o); font-size: 16px; letter-spacing: 1px; }
.get-btns { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
    display: inline-block;
    border: 0;
    border-radius: 999px;
    padding: 9px 22px;
    font-size: 14px;
    cursor: pointer;
    background: #f2f2f3;
    color: #333;
    line-height: 1.4;
}
.btn:hover { background: #e9e9ea; color: #333; }
.btn-main { background: var(--o); color: #fff; font-weight: 600; }
.btn-main:hover { background: var(--o-dark); color: #fff; }
.btn-copy { background: #1a1a1a; color: #fff; }
.btn-copy:hover { background: #000; color: #fff; }
.copy-tip { font-size: 12.5px; color: var(--o); margin: 8px 0 0; display: none; }

.pre { white-space: pre-wrap; }

.detail-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px dashed var(--c-line);
    padding-top: 14px;
    font-size: 13.5px;
}
.detail-nav a { max-width: 48%; color: #1a73e8; }
.detail-nav .next { text-align: right; margin-left: auto; }

.info-list { list-style: none; padding: 0; margin: 0 0 8px; display: flex; flex-wrap: wrap; gap: 6px 18px; }
.info-list li { color: #333; font-size: 14px; }

.info-table { border-collapse: collapse; width: 100%; font-size: 14px; }
.info-table th, .info-table td { border: 1px solid var(--c-line); padding: 8px 12px; text-align: left; vertical-align: top; }
.info-table th { background: #fafafa; color: var(--c-sub); font-weight: 500; width: 110px; white-space: nowrap; }
.info-table td { color: #333; }

.chip-num { display: inline-block; margin-left: 6px; color: var(--c-sub); font-size: 11.5px; }
.chip-on .chip-num { color: #6b5c00; }

/* ==================== 分页 ==================== */
.pager { margin-top: 18px; }
.pager ul { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 0; justify-content: center; }
.pager li a, .pager li span {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: #333;
    background: #fff;
}
.pager li.active span { background: var(--y); color: #1a1a1a; font-weight: 600; }
.pager li.disabled span { color: #c2c7cf; }

.empty { color: var(--c-sub); padding: 24px 0; text-align: center; }
.more { text-align: center; margin-top: 16px; }
.more a { color: #1a73e8; }

/* ==================== 文字链导航（SEO 链接池） ==================== */
.linkfarm {
    background: #fff;
    padding: 16px 0 20px;
    margin-top: 16px;
}
.lf-head {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
}
.lf-row {
    display: flex;
    gap: 12px;
    padding: 7px 0;
    border-bottom: 1px dashed #f6f6f7;
    font-size: 12.5px;
}
.lf-row:last-child { border-bottom: 0; }
.lf-label { color: #b9bec7; flex: none; width: 64px; }
.lf-links { flex: 1; min-width: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.lf-links a { color: #8a8f99; }
.lf-links a:hover { color: var(--o); }

/* ==================== 页脚（深色） ==================== */
.site-foot {
    background: #2b2b2b;
    padding: 22px 0 26px;
    font-size: 12.5px;
    color: #9a9a9a;
    text-align: center;
}
.site-foot a { color: #b8b8b8; }
.site-foot a:hover { color: var(--y); }
.foot-links { margin-bottom: 8px; line-height: 2; }
.foot-info { margin-bottom: 6px; }
.foot-tip { margin: 8px auto 0; max-width: 760px; color: #8b8b8b; font-size: 12px; }

/* ==================== 右侧悬浮工具栏 ==================== */
.rail {
    position: fixed;
    right: 14px;
    bottom: 86px;
    z-index: 40;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.rail a, .rail button {
    width: 52px;
    height: 52px;
    background: #fff;
    border: 0;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .09);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    font-size: 11px;
    color: #666;
    cursor: pointer;
    padding: 0;
    line-height: 1.2;
}
.rail a:hover, .rail button:hover { color: var(--o); }
.rail .rail-ico { font-size: 16px; }
/* 回到顶部：滚动到一定位置才出现 */
#backTop { display: none; }
#backTop.show { display: flex; }

/* ==================== 初始化提示页 ==================== */
.steps { padding-left: 20px; background: #fff; border-radius: var(--radius); padding: 18px 20px 18px 40px; }
.steps li { margin-bottom: 14px; }
.steps pre {
    background: #1f2329;
    color: #e6edf3;
    padding: 10px 12px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 13px;
    margin: 6px 0;
}
.steps code { background: #f4f4f5; padding: 1px 5px; border-radius: 4px; }

/* ==================== 窄窗口兜底（手机端另有 site-mobile.css） ==================== */
@media (max-width: 1080px) {
    .card-grid { grid-template-columns: repeat(4, 1fr); }
    .banner { grid-template-columns: 280px 1fr; }
}
@media (max-width: 900px) {
    .page-inner { grid-template-columns: 1fr; }
    .side { position: static; }
    .side-nav { display: flex; overflow-x: auto; padding: 0 6px 6px; }
    .side-nav a { flex: none; margin: 0 4px 0 0; background: #f6f6f7; border-radius: 999px; padding: 7px 14px; }
    .side-title { display: none; }
    .card-grid { grid-template-columns: repeat(3, 1fr); }
    .banner { grid-template-columns: 1fr; }
    .rail { display: none; }
}
@media (max-width: 720px) {
    h1 { font-size: 19px; }
    .topbar-inner { min-height: auto; padding: 10px 0; gap: 10px; flex-wrap: wrap; }
    .logo { max-width: none; }
    .searchbox { order: 3; flex: 1 1 100%; max-width: none; }
    .hotwords { display: none; }
    .card-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .mini-grid { grid-template-columns: 1fr; }
    .detail { padding: 14px; }
    .detail-nav { flex-direction: column; }
    .detail-nav a { max-width: 100%; }
    .detail-nav .next { text-align: left; margin-left: 0; }
}