/* ==========================================================
   技术专栏样式（列表页 + 文章详情页）
   只在 /news* 页面加载，避免影响其它页面的体积
   ========================================================== */

/* ---------------- 列表页 ---------------- */
.tech-hero {
  background: linear-gradient(135deg, #101827, #1e3a63 55%, #0f2a5c);
  color: #fff;
  padding: 46px 0 40px;
}
.tech-hero h1 { font-size: 34px; letter-spacing: -1px; }
.tech-hero .sub { color: rgba(255, 255, 255, .72); margin-top: 10px; font-size: 15px; max-width: 780px; line-height: 1.8; }
.tech-hero .stats { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; background: transparent; padding: 0; border: 0; }
.tech-hero .stats > div {
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 12px; padding: 14px 22px; text-align: center;
  -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
.tech-hero .stats b { display: block; font-size: 26px; font-weight: 800; color: #fff; letter-spacing: -.5px; line-height: 1.1; }
.tech-hero .stats span { display: block; font-size: 12.5px; color: rgba(255, 255, 255, .78); margin-top: 4px; }

.tech-filter { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 26px 0 22px; }
.tech-filter a {
  padding: 7px 16px; border-radius: 999px; font-size: 14px;
  background: #f4f6fa; color: #4b5563; border: 1px solid transparent;
}
.tech-filter a:hover { color: var(--brand); border-color: rgba(224, 32, 32, .3); }
.tech-filter a.on { background: var(--brand); color: #fff; }
.tech-search { margin-left: auto; display: flex; gap: 8px; }
.tech-search input {
  height: 38px; border: 1px solid var(--line); border-radius: 999px;
  padding: 0 16px; font-family: inherit; font-size: 14px; width: 220px; outline: none;
}
.tech-search input:focus { border-color: var(--brand); }

.tech-layout { display: flex; gap: 30px; align-items: flex-start; }
.tech-main { flex: 1; min-width: 0; }
.tech-side { width: 300px; flex: none; }

.tech-card {
  display: flex; gap: 18px; padding: 18px; border: 1px solid var(--line);
  border-radius: 14px; margin-bottom: 16px; background: #fff; transition: box-shadow .2s, transform .2s, border-color .2s;
}
.tech-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: rgba(224, 32, 32, .25); }
.tech-card .thumb {
  width: 178px; height: 112px; flex: none; border-radius: 10px; overflow: hidden; background: #eef1f6;
}
.tech-card .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tech-card .bd { flex: 1; min-width: 0; }
.tech-card .row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 7px; font-size: 12.5px; color: var(--ink-3); }
.tech-card h3 { font-size: 17.5px; line-height: 1.5; margin-bottom: 8px; }
.tech-card h3 a:hover { color: var(--brand); }
.tech-card p { font-size: 13.5px; color: var(--ink-2); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tech-card .foot { display: flex; gap: 16px; margin-top: 10px; font-size: 12.5px; color: var(--ink-3); flex-wrap: wrap; }

.cat-badge { display: inline-block; padding: 2px 9px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.cat-ops { background: rgba(47, 124, 246, .1); color: #2f7cf6; }
.cat-data { background: rgba(0, 168, 112, .1); color: #00875a; }
.cat-ai { background: rgba(138, 92, 246, .12); color: #6d28d9; }
.cat-qa { background: rgba(255, 180, 0, .16); color: #b26a00; }
.cat-other { background: rgba(138, 148, 166, .14); color: #5b6473; }

.pager { display: flex; gap: 8px; align-items: center; margin: 26px 0 8px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 36px; height: 36px; line-height: 34px; text-align: center; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 9px; font-size: 14px; color: var(--ink-2);
}
.pager a:hover { border-color: var(--brand); color: var(--brand); }
.pager .cur { background: var(--brand); color: #fff; border-color: var(--brand); }

/* 侧栏 */
.side-box { border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin-bottom: 16px; background: #fff; }
.side-box h4 { font-size: 15px; margin-bottom: 12px; padding-left: 10px; border-left: 3px solid var(--brand); }
.side-box ul li { padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 13.5px; }
.side-box ul li:last-child { border-bottom: 0; }
.side-box ul li a { color: var(--ink-2); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-box ul li a:hover { color: var(--brand); }
.side-box .rank { display: inline-block; width: 18px; color: var(--brand); font-weight: 700; font-style: italic; }
.kw-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.kw-chips a { font-size: 12.5px; padding: 5px 11px; border-radius: 999px; background: #f4f6fa; color: #4b5563; }
.kw-chips a:hover { background: var(--brand); color: #fff; }

/* 侧栏：本周技术热点 */
.hot-list li { display: flex; flex-direction: column; gap: 1px; }
.hot-list li a { white-space: normal; font-weight: 600; color: var(--ink); }
.hot-list li a .rank { color: #ff8a3d; }
.hot-list li em { font-style: normal; font-size: 11.5px; color: var(--ink-3); padding-left: 18px; }

/* ---------------- 详情页 ---------------- */
.art-wrap { max-width: 820px; }
.crumb a:hover { color: var(--brand); }
.art-head h1 { font-size: 30px; line-height: 1.4; margin: 12px 0 14px; letter-spacing: -.5px; }
.art-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--ink-3); padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.art-cover { width: 100%; border-radius: 14px; margin: 22px 0; display: block; }

.ai-box {
  background: linear-gradient(135deg, rgba(47, 124, 246, .07), rgba(138, 92, 246, .07));
  border: 1px solid rgba(47, 124, 246, .22); border-radius: 14px; padding: 16px 18px; margin: 22px 0;
}
.ai-box h4 { font-size: 14px; color: #2456a8; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.ai-box p { font-size: 14px; line-height: 1.9; color: #2b3445; }

.outline-box { background: var(--bg-soft); border-radius: 14px; padding: 18px 20px; margin: 22px 0; border: 1px solid var(--line); }
.outline-box h4 { font-size: 15px; margin-bottom: 12px; }
.outline-box ol { margin: 0; padding-left: 20px; }
.outline-box li { font-size: 14px; line-height: 2; color: var(--ink-2); }

.article-body { font-size: 16px; line-height: 1.95; color: #33404f; }
.article-body h3 { font-size: 21px; margin: 34px 0 14px; padding-left: 12px; border-left: 4px solid var(--brand); line-height: 1.4; }
.article-body h4 { font-size: 17px; margin: 22px 0 10px; }
.article-body p { margin: 12px 0; }
.article-body ul, .article-body ol { margin: 12px 0 12px 22px; padding: 0; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin: 7px 0; line-height: 1.9; }
.article-body blockquote {
  margin: 16px 0; padding: 12px 16px; background: #fffaf0;
  border-left: 3px solid var(--gold); border-radius: 0 10px 10px 0; color: #7a5200; font-size: 14.5px;
}
.article-body code {
  background: #f2f4f8; padding: 1px 6px; border-radius: 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; color: #b81616;
}
.article-body .ilink { color: var(--brand); border-bottom: 1px dashed rgba(224, 32, 32, .45); }
.article-body .ilink:hover { border-bottom-style: solid; }
.article-body hr { border: 0; border-top: 1px dashed var(--line); margin: 26px 0; }

.code-block {
  background: #101827; color: #d7e0ef; border-radius: 12px; padding: 16px 18px;
  overflow-x: auto; margin: 18px 0; font-size: 13px; line-height: 1.75;
}
.code-block code { background: none; color: inherit; padding: 0; font-size: 13px; white-space: pre; }

/* 图表（流程图 / 架构图 / 时序图） */
.dg { margin: 22px 0; padding: 14px 10px; background: #fbfcfe; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.dg svg { display: block; width: 100%; height: auto; }

.kw-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 26px 0 6px; }
.kw-tags span, .kw-tags a { font-size: 12.5px; padding: 5px 12px; border-radius: 999px; background: #f4f6fa; color: #5b6473; }
.kw-tags a:hover { background: var(--brand); color: #fff; }

/* 官方动态 · 热点关键词 */
.hot-box {
  background: linear-gradient(135deg, rgba(255, 138, 61, .08), rgba(224, 32, 32, .06));
  border: 1px solid rgba(255, 138, 61, .28); border-left: 4px solid #ff8a3d;
  border-radius: 14px; padding: 16px 18px; margin: 22px 0;
}
.hot-box h4 { font-size: 14px; color: #b3541e; margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.hot-dyn { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 14px; line-height: 1.9; color: #2b3445; }
.hot-dyn b { font-size: 15px; color: #d9480f; background: rgba(255, 138, 61, .14); padding: 2px 10px; border-radius: 6px; }
.hot-dyn span { font-size: 12.5px; color: var(--ink-3); }
.hot-dyn a { font-size: 12.5px; color: #d9480f; text-decoration: none; border-bottom: 1px dashed #f0a070; }
.hot-dyn a:hover { border-bottom-style: solid; }
.hot-chips { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 10px; }
.hot-chips > span { font-size: 12.5px; color: var(--ink-3); }
.hot-chips a { font-size: 12.5px; padding: 4px 11px; border-radius: 999px; background: #fff; color: #d9480f; border: 1px solid rgba(255, 138, 61, .35); text-decoration: none; }
.hot-chips a:hover { background: #ff8a3d; color: #fff; border-color: #ff8a3d; }
.hot-note { font-size: 12px; color: var(--ink-3); margin-top: 10px; }

.cta-box {
  margin: 30px 0; padding: 20px 22px; border-radius: 14px; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.cta-box b { display: block; font-size: 18px; margin-bottom: 5px; }
.cta-box span { font-size: 13.5px; color: rgba(255, 255, 255, .85); }
.cta-box .btn { background: #fff; color: var(--brand); border-color: #fff; flex: none; }

.related-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.related-list a { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; font-size: 14px; line-height: 1.6; color: var(--ink-2); background: #fff; }
.related-list a:hover { border-color: var(--brand); color: var(--brand); }
.related-list a i { display: block; font-style: normal; font-size: 12px; color: var(--ink-3); margin-top: 6px; }

.pager2 { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.pager2 a { flex: 1 1 46%; min-width: 240px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; font-size: 14px; color: var(--ink-2); }
.pager2 a:hover { border-color: var(--brand); color: var(--brand); }
.pager2 a i { display: block; font-style: normal; font-size: 12px; color: var(--ink-3); margin-bottom: 5px; }

/* ---------------- H5 ---------------- */
@media (max-width: 1024px) {
  .tech-layout { flex-direction: column; }
  .tech-side { width: 100%; }
}
@media (max-width: 640px) {
  .tech-hero { padding: 32px 0 28px; }
  .tech-hero h1 { font-size: 24px; }
  .tech-hero .sub { font-size: 13.5px; }
  .tech-hero .stats { gap: 18px; }
  .tech-hero .stats b { font-size: 20px; }
  .tech-search { margin-left: 0; width: 100%; }
  .tech-search input { width: 100%; }
  .tech-card { flex-direction: column; gap: 12px; padding: 14px; }
  .tech-card .thumb { width: 100%; height: 150px; }
  .tech-card h3 { font-size: 16.5px; }
  .art-head h1 { font-size: 22px; }
  .article-body { font-size: 15.5px; }
  .article-body h3 { font-size: 18.5px; margin: 26px 0 10px; }
  .related-list { grid-template-columns: 1fr; }
  .pager2 a { min-width: 100%; }
  .code-block { font-size: 12px; padding: 13px; }
  .dg { padding: 8px 4px; }
  .ai-box, .outline-box { padding: 14px 15px; }
  .cta-box { padding: 16px; }
}