/* ============================================================
   优搜 · 界面样式（Bootstrap 5 之上的一层轻量主题）
   ============================================================ */
:root {
    --brand: #2f6bff;
    --brand-dark: #1f51d0;
    --brand-soft: #eef3ff;
    --accent: #ff6a2b;
    --ink: #1f2430;
    --muted: #6b7385;
    --line: #e6ebf3;
    --bg-soft: #f6f8fc;
    --radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 品牌 ---------- */
.brand-wrap { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { flex: none; }
.brand-name {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: 2px;
    color: #16233f;
    line-height: 1;
}
.brand-name .dot { color: var(--brand); }

/* ---------- 首页 ---------- */
.home-body {
    background:
        radial-gradient(1200px 500px at 50% -10%, #eaf1ff 0%, rgba(234, 241, 255, 0) 65%),
        #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.home-nav {
    padding: 18px 0;
}
.home-nav .links a {
    color: var(--muted);
    font-size: 14px;
    margin-left: 18px;
}
.home-nav .links a:hover { color: var(--brand); text-decoration: none; }

.home-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8vh 16px 40px;
}
.home-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; }
.home-brand .brand-name { font-size: 52px; letter-spacing: 4px; }
.home-slogan { color: var(--muted); font-size: 14px; letter-spacing: 6px; margin-bottom: 26px; }

.home-search { width: 100%; max-width: 700px; position: relative; }
.home-search .search-shell {
    display: flex;
    align-items: center;
    background: #fff;
    border: 1px solid #dfe6f2;
    border-radius: 999px;
    padding: 4px 6px 4px 20px;
    box-shadow: 0 10px 30px rgba(29, 78, 216, .08);
    transition: box-shadow .2s, border-color .2s;
}
.home-search .search-shell:focus-within {
    border-color: var(--brand);
    box-shadow: 0 12px 34px rgba(47, 107, 255, .18);
}
.home-search .search-shell .bi-search { color: var(--muted); font-size: 18px; }
.home-search input {
    flex: 1;
    border: 0;
    outline: 0;
    height: 50px;
    font-size: 17px;
    padding: 0 12px;
    background: transparent;
}
.home-search .btn-go {
    border: 0;
    background: var(--brand);
    color: #fff;
    height: 44px;
    padding: 0 26px;
    border-radius: 999px;
    font-size: 16px;
    margin-right: 2px;
    transition: background .2s;
}
.home-search .btn-go:hover { background: var(--brand-dark); }
.home-search .btn-lucky {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--muted);
    height: 44px;
    padding: 0 18px;
    border-radius: 999px;
    margin-left: 6px;
    font-size: 14px;
}
.home-search .btn-lucky:hover { color: var(--brand); border-color: var(--brand); }

.home-hot { width: 100%; max-width: 700px; margin-top: 34px; }
.home-hot .hot-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 12px; color: var(--muted); font-size: 14px;
}
.hot-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 26px; }
.hot-item {
    display: flex; align-items: center; gap: 10px;
    padding: 7px 8px; border-radius: 8px; color: #2c3446; font-size: 14px;
    transition: background .15s;
}
.hot-item:hover { background: var(--bg-soft); text-decoration: none; }
.hot-rank {
    flex: none; width: 20px; height: 20px; line-height: 20px; text-align: center;
    border-radius: 6px; font-size: 12px; font-weight: 700;
    background: #eef1f7; color: #8a93a6;
}
.hot-rank.rank-1 { background: #ffe9e6; color: #e23a2e; }
.hot-rank.rank-2 { background: #fff0e0; color: #ef7a1a; }
.hot-rank.rank-3 { background: #fff8dd; color: #d8a300; }
.hot-text { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hot-heat { color: #b3bac9; font-size: 12px; }

.home-channels { margin-top: 30px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.home-channels a {
    font-size: 13px; color: var(--muted); border: 1px solid var(--line);
    padding: 6px 14px; border-radius: 999px; background: #fff;
}
.home-channels a:hover { color: var(--brand); border-color: #c7d7ff; background: var(--brand-soft); text-decoration: none; }

.home-stats {
    margin-top: 40px; color: #9aa3b5; font-size: 13px; display: flex; gap: 22px; flex-wrap: wrap; justify-content: center;
}
.home-stats b { color: #4c5566; font-weight: 600; }

/* ---------- 搜索建议 ---------- */
.suggest-panel {
    position: absolute; left: 0; right: 0; top: calc(100% + 8px);
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    box-shadow: 0 18px 44px rgba(20, 35, 70, .14);
    padding: 6px; z-index: 1000; display: none; overflow: hidden;
}
.suggest-panel.show { display: block; }
.suggest-item {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: 9px; cursor: pointer; font-size: 14px; color: #2b3446;
}
.suggest-item .bi { color: #b6bece; }
.suggest-item.active, .suggest-item:hover { background: var(--brand-soft); }
.suggest-item .text-truncate { flex: 1; }
.suggest-empty { padding: 10px 12px; color: #9aa3b5; font-size: 13px; }

/* ---------- 顶部搜索栏（结果页） ---------- */
.search-header {
    border-bottom: 1px solid var(--line);
    background: #fff;
    position: sticky; top: 0; z-index: 900;
}
.search-header .search-form { position: relative; max-width: 760px; }
.search-header .search-shell {
    display: flex; align-items: center;
    border: 1px solid #dfe6f2; border-radius: 999px; background: #fff;
    padding: 2px 4px 2px 16px; height: 44px;
}
.search-header .search-shell:focus-within { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(47, 107, 255, .12); }
.search-header .search-shell .bi-search { color: #9aa3b5; }
.search-header input {
    flex: 1; border: 0; outline: 0; background: transparent; padding: 0 10px; font-size: 15px; height: 40px;
}
.search-header .btn-search {
    border: 0; background: var(--brand); color: #fff; height: 38px; border-radius: 999px;
    padding: 0 20px; font-size: 14px;
}
.search-header .btn-search:hover { background: var(--brand-dark); }

.logo-sm { display: inline-flex; align-items: center; gap: 8px; color: #16233f; flex: none; }
.logo-sm .brand-name { font-size: 22px; letter-spacing: 1px; }

.channel-tabs { display: flex; gap: 4px; margin-top: 12px; flex-wrap: wrap; }
.channel-tabs a {
    padding: 8px 14px; font-size: 14px; color: #5b6478; border-radius: 8px 8px 0 0;
    border-bottom: 2px solid transparent;
}
.channel-tabs a.active { color: var(--brand); font-weight: 600; border-bottom-color: var(--brand); }
.channel-tabs a:hover { color: var(--brand); text-decoration: none; }

.filter-bar { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; padding: 12px 0 4px; color: var(--muted); font-size: 13px; }
.filter-group { display: flex; align-items: center; gap: 4px; }
.filter-group .label { color: #9aa3b5; margin-right: 4px; }
.filter-group a { color: #5b6478; padding: 2px 8px; border-radius: 6px; }
.filter-group a:hover { background: var(--bg-soft); text-decoration: none; }
.filter-group a.active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }

/* ---------- 结果页 ---------- */
.result-stats { color: #8a92a4; font-size: 13px; padding: 6px 0 14px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.result-stats .ms { color: #aab2c2; }

.result-item { padding: 12px 0 16px; border-bottom: 1px solid #f1f4f9; }
.result-item:last-child { border-bottom: 0; }
.result-head { display: flex; align-items: flex-start; gap: 12px; }
.result-favicon {
    width: 32px; height: 32px; border-radius: 8px; background: #eef2fa;
    display: flex; align-items: center; justify-content: center; flex: none; margin-top: 3px; overflow: hidden;
}
.result-favicon img { width: 22px; height: 22px; }
.result-site { display: flex; align-items: center; gap: 8px; font-size: 12px; color: #7c8597; margin-bottom: 3px; }
.result-site .badge-channel { font-size: 11px; padding: 1px 6px; border-radius: 4px; background: #eef2fa; color: #6b7a99; }
.result-title {
    font-size: 18px; line-height: 1.45; color: #2440b3; font-weight: 500;
    display: inline-block;
}
.result-title:hover { color: #1a2f86; text-decoration: underline; }
.result-snippet {
    font-size: 14px; color: #3a4152; line-height: 1.78; margin-top: 7px;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.result-meta { margin-top: 8px; font-size: 12px; color: #9aa3b5; display: flex; gap: 14px; flex-wrap: wrap; }
.em, .hl { color: #c5221f; font-style: normal; font-weight: 600; }
.result-actions { display: flex; gap: 14px; font-size: 12px; margin-top: 6px; }
.result-actions a { color: #8b94a7; }
.result-actions a:hover { color: var(--brand); }

.pagination-wrap { display: flex; justify-content: center; margin: 26px 0 8px; }
.pagination .page-link { color: #4c5566; border-color: var(--line); }
.pagination .page-link:hover { color: var(--brand); background: var(--brand-soft); }
.pagination .active .page-link { background: var(--brand); border-color: var(--brand); color: #fff; }
.pager-text { color: #9aa3b5; font-size: 13px; text-align: center; margin-top: 6px; }

/* 侧栏 */
.side-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.side-title { font-size: 14px; font-weight: 600; color: #2b3446; margin-bottom: 12px; display: flex; align-items: center; gap: 6px; }
.side-title .bi { color: var(--brand); }
.related-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.related-chips a {
    background: var(--bg-soft); border: 1px solid #eef1f7; color: #3c4658;
    padding: 5px 11px; border-radius: 999px; font-size: 13px;
}
.related-chips a:hover { background: var(--brand-soft); border-color: #d6e2ff; color: var(--brand); text-decoration: none; }
.side-hot .hot-list { grid-template-columns: 1fr; gap: 2px; }

/* 无结果 */
.empty-block { padding: 26px 0 10px; }
.empty-title { font-size: 16px; color: #3a4152; margin-bottom: 6px; }
.empty-tip { color: #8a92a4; font-size: 13px; margin-bottom: 18px; }
.suggest-fix { font-size: 14px; color: #5b6478; margin: 10px 0 18px; }
.suggest-fix a { color: var(--brand); font-weight: 600; }

/* 图片频道 */
.image-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.image-card { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; }
.image-card img { width: 100%; height: 150px; object-fit: cover; display: block; background: #f2f4f8; }
.image-card .cap { padding: 8px 10px; font-size: 13px; color: #3c4658; }
.image-card .cap .meta { display: block; color: #9aa3b5; font-size: 11px; margin-top: 3px; }
.image-card:hover { box-shadow: 0 10px 24px rgba(20, 35, 70, .1); }

/* 视频频道 */
.video-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.video-card { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; }
.video-thumb { position: relative; }
.video-thumb img { width: 100%; height: 150px; object-fit: cover; display: block; }
.video-thumb .duration {
    position: absolute; right: 8px; bottom: 8px; background: rgba(0, 0, 0, .65);
    color: #fff; font-size: 11px; padding: 1px 6px; border-radius: 4px;
}
.video-thumb .play {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    color: rgba(255, 255, 255, .92); font-size: 30px;
}
.video-card .cap { padding: 10px 12px; }
.video-card .cap a { color: #2440b3; font-size: 14px; font-weight: 500; }
.video-card .cap .meta { display: block; color: #9aa3b5; font-size: 11px; margin-top: 5px; }

/* 资讯频道 */
.news-item { display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid #f1f4f9; }
.news-date { flex: none; width: 58px; text-align: center; color: #9aa3b5; font-size: 12px; padding-top: 3px; }
.news-date b { display: block; font-size: 20px; color: #4c5566; font-weight: 600; line-height: 1.2; }
.news-body { flex: 1; }
.news-body a.title { font-size: 17px; color: #2440b3; }
.news-body .snippet { color: #4a5265; font-size: 13px; margin-top: 5px; line-height: 1.7; }
.news-body .meta { color: #9aa3b5; font-size: 12px; margin-top: 6px; }

/* ---------- 文档详情 ---------- */
.doc-wrap { padding: 26px 0 50px; }
.doc-card { border: 1px solid var(--line); border-radius: 16px; padding: 26px 28px; }
.doc-channel { font-size: 12px; color: var(--brand); background: var(--brand-soft); padding: 3px 9px; border-radius: 6px; }
.doc-title { font-size: 26px; font-weight: 700; line-height: 1.4; margin: 12px 0 10px; color: #1a2233; }
.doc-meta { color: #8a92a4; font-size: 13px; display: flex; gap: 16px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 1px dashed var(--line); }
.doc-content { font-size: 15px; line-height: 2; color: #2f3747; margin-top: 18px; white-space: pre-wrap; word-break: break-word; }
.doc-foot { margin-top: 22px; padding-top: 16px; border-top: 1px dashed var(--line); display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.doc-url { color: #9aa3b5; font-size: 12px; word-break: break-all; }

/* ---------- 通用页面 ---------- */
.page-wrap { padding: 30px 0 60px; }
.page-card { border: 1px solid var(--line); border-radius: 16px; padding: 26px 28px; }
.page-card h1 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.page-card .sub { color: #8a92a4; font-size: 13px; margin-bottom: 20px; }
.page-card h2 { font-size: 16px; font-weight: 600; margin: 24px 0 10px; }
.page-card p, .page-card li { color: #3f4757; font-size: 14px; line-height: 1.9; }
.form-label { font-size: 13px; color: #4c5566; }
.hint { font-size: 12px; color: #9aa3b5; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); background: #fbfcfe; padding: 22px 0 26px; margin-top: 30px; }
.site-footer .links a { color: #7c8597; font-size: 13px; margin-right: 16px; }
.site-footer .copy { color: #9aa3b5; font-size: 12px; margin-top: 8px; }

/* ---------- 后台 ---------- */
.admin-body { background: #f4f6fb; min-height: 100vh; }
.admin-shell { display: flex; min-height: 100vh; }
.admin-side {
    width: 228px; flex: none; background: #101828; color: #cbd3e1;
    padding: 22px 16px; display: flex; flex-direction: column; gap: 6px;
}
.admin-side .brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; letter-spacing: 1px; margin-bottom: 18px; padding: 0 6px; }
.admin-side a.nav-link {
    color: #aab4c5; padding: 9px 12px; border-radius: 9px; font-size: 14px;
    display: flex; align-items: center; gap: 9px;
}
.admin-side a.nav-link:hover { background: #1b2434; color: #fff; text-decoration: none; }
.admin-side a.nav-link.active { background: var(--brand); color: #fff; }
.admin-side .divider { height: 1px; background: #1e2939; margin: 12px 0; }
.admin-side .foot-links { margin-top: auto; font-size: 12px; color: #6d798c; display: flex; flex-direction: column; gap: 6px; }
.admin-main { flex: 1; min-width: 0; }
.admin-top { background: #fff; border-bottom: 1px solid var(--line); padding: 14px 26px; display: flex; align-items: center; justify-content: space-between; }
.admin-top .h5 { margin: 0; font-size: 17px; font-weight: 600; }
.admin-content { padding: 22px 26px 40px; }

.stat-card { border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 16px 18px; height: 100%; }
.stat-card .label { color: #8a92a4; font-size: 12px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: #1a2233; margin-top: 4px; }
.stat-card .foot { color: #9aa3b5; font-size: 12px; margin-top: 6px; }
.panel { border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 18px 20px; }
.panel-title { font-size: 15px; font-weight: 600; margin-bottom: 12px; display: flex; align-items: center; justify-content: space-between; }
.admin-table td, .admin-table th { font-size: 13px; vertical-align: middle; }
.admin-table th { color: #8a92a4; font-weight: 500; border-bottom: 1px solid var(--line); }
.badge-soft { background: #eef2fa; color: #5b6478; font-weight: 500; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, #eef4ff, #ffffff 60%); padding: 20px; }
.login-card { width: 100%; max-width: 380px; border: 1px solid var(--line); border-radius: 18px; background: #fff; padding: 30px 28px; box-shadow: 0 24px 60px rgba(23, 40, 84, .12); }

/* ---------- 响应式 ---------- */
@media (max-width: 991.98px) {
    .home-brand .brand-name { font-size: 40px; }
    .home-search .search-shell { padding-left: 16px; }
    .home-search .btn-lucky { display: none; }
    .hot-list { grid-template-columns: 1fr; }
    .image-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .video-list { grid-template-columns: 1fr; }
    .admin-side { display: none; }
    .admin-content { padding: 16px; }
}
@media (max-width: 575.98px) {
    .image-grid { grid-template-columns: 1fr; }
    .result-title { font-size: 16px; }
    .doc-card { padding: 18px; }
    .doc-title { font-size: 21px; }
}

/* ---------- 蜘蛛任务 ---------- */
.spider-row { padding: 12px 0; border-bottom: 1px dashed var(--line); }
.spider-row:last-child { border-bottom: 0; }
.spider-progress { height: 6px; background: #eef2fa; border-radius: 4px; }
.spider-progress .progress-bar { background: linear-gradient(90deg, #2f6bff, #5b8cff); border-radius: 4px; transition: width .3s; }
.cli-box {
    background: #f6f8fc; border: 1px solid var(--line); border-radius: 8px;
    padding: 8px 10px; font-size: 12px; margin: 0; color: #42506b;
    white-space: pre-wrap; word-break: break-all;
}

.url-probe {
    background: #f8f9fb; border: 1px solid #e3e6ea; border-radius: 10px;
    padding: 12px 16px; margin: 8px 0 14px; font-size: 14px; color: #303846; line-height: 1.7;
}
.url-probe i { color: #2f6bff; margin-right: 4px; }
.url-probe a { font-weight: 600; }
.url-probe .hint { font-weight: 400; }