/* ===== 博客 =====
   商城是干净的商品页，博客要有自己的气质：深色开头、终端质感、代码是主角。
   变量沿用 liuneng.v2.css，颜色在这里自己扩一套。 */

:root {
  --bl-ink: #0b0b0d;
  --bl-ink-2: #14151a;
  --bl-line: #e7e9ee;
  --bl-muted: #6b7280;
  --bl-cyan: #06b6d4;
  --bl-violet: #8b5cf6;
}

.bl-wrap { max-width: 980px; }

/* ── 深色开场 ── */
.bl-hero {
  background: var(--bl-ink);
  background-image:
    radial-gradient(90% 120% at 15% 0%, rgba(139, 92, 246, .22), transparent 55%),
    radial-gradient(70% 100% at 85% 10%, rgba(6, 182, 212, .16), transparent 55%);
  color: #fff; padding: 74px 0 66px; position: relative; overflow: hidden;
}
.bl-hero::after {                       /* 极淡的网格，像终端背景 */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 34px 34px;
}
.bl-hero > * { position: relative; }
.bl-hero-eyebrow {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px; font-weight: 700; letter-spacing: .22em;
  color: #67e8f9; margin: 0 0 18px;
}
.bl-hero-title {
  font-size: 46px; font-weight: 800; line-height: 1.22; letter-spacing: -.03em;
  margin: 0 0 20px;
}
.bl-hero-sub {
  font-size: 16.5px; line-height: 1.85; color: #9ca3af; margin: 0; max-width: 620px;
}

/* ── 列表 ── */
.bl-listing { padding: 46px 0 70px; }
.bl-grid { display: grid; gap: 22px; }

.bl-card {
  display: grid; grid-template-columns: 1fr 340px; gap: 0;
  background: #fff; border: 1px solid var(--bl-line); border-radius: 18px;
  overflow: hidden; transition: .2s ease;
}
.bl-card:hover { transform: translateY(-2px); box-shadow: 0 14px 38px rgba(16, 24, 40, .1); }
.bl-card-body { padding: 26px 28px; min-width: 0; }

.bl-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.bl-card-title { font-size: 25px; font-weight: 800; margin: 0; letter-spacing: -.02em; }
.bl-lang {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px; font-weight: 700; padding: 4px 9px; border-radius: 6px;
  background: #f1f5f9; color: #475569; white-space: nowrap;
}
.bl-accent-cyan .bl-lang { background: rgba(6, 182, 212, .12); color: #0e7490; }
.bl-accent-violet .bl-lang { background: rgba(139, 92, 246, .12); color: #6d28d9; }

.bl-card-tagline { font-size: 15.5px; font-weight: 700; color: #374151; margin: 0 0 10px; }
.bl-card-desc { font-size: 14.5px; line-height: 1.85; color: var(--bl-muted); margin: 0 0 16px; }

.bl-points { margin: 0 0 18px; padding: 0; list-style: none; }
.bl-points li {
  position: relative; padding-left: 20px; font-size: 14px; line-height: 1.8; color: #374151;
}
.bl-points li::before {
  content: ""; position: absolute; left: 4px; top: 11px;
  width: 6px; height: 6px; border-radius: 50%; background: #cbd5e1;
}
.bl-accent-cyan .bl-points li::before { background: var(--bl-cyan); }
.bl-accent-violet .bl-points li::before { background: var(--bl-violet); }

/* 可读文章的入口：做成明确的「去读」按钮列 */
.bl-reads { display: grid; gap: 8px; margin-bottom: 18px; }
.bl-read {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 11px 15px; border: 1px solid var(--bl-line); border-radius: 11px;
  text-decoration: none; color: var(--bl-ink); font-size: 14.5px; font-weight: 700;
  transition: .16s ease;
}
.bl-read:hover { border-color: var(--bl-ink); background: #fafafa; color: var(--bl-ink); }
.bl-read-meta { font-size: 12.5px; font-weight: 600; color: var(--bl-muted); white-space: nowrap; }

.bl-card-foot {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px;
  padding-top: 15px; border-top: 1px solid #f1f3f7;
  font-size: 13px; color: var(--bl-muted);
}
.bl-gh { font-weight: 700; text-decoration: none; color: var(--bl-ink); }
.bl-gh:hover { text-decoration: underline; color: var(--bl-ink); }
.bl-meta-dot { font-size: 12.5px; }

/* 终端预览：卡片的视觉钩子 */
.bl-term { background: var(--bl-ink-2); display: flex; flex-direction: column; min-width: 0; }
.bl-term-bar {
  display: flex; gap: 6px; padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,.07);
}
.bl-term-bar i { width: 10px; height: 10px; border-radius: 50%; background: #3f3f46; }
.bl-term-bar i:first-child { background: #ef4444aa; }
.bl-term-bar i:nth-child(2) { background: #f59e0baa; }
.bl-term-bar i:nth-child(3) { background: #22c55eaa; }
.bl-term-body {
  padding: 16px 16px 18px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px; line-height: 1.95; overflow-x: auto;
}
.bl-term-line { display: flex; gap: 9px; color: #e2e8f0; white-space: nowrap; }
.bl-term-sym { flex: 0 0 auto; font-weight: 700; }
.bl-term-cmd { color: #22d3ee; }
.bl-term-note { color: #64748b; }
.bl-term-line:has(.bl-term-note) { color: #64748b; }

/* ── 文章头 ── */
.bl-art-head { padding: 40px 0 26px; border-bottom: 1px solid var(--bl-line); background: #fff; }
.bl-crumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  font-size: 13px; color: var(--bl-muted); margin-bottom: 14px; }
.bl-crumb a { color: var(--bl-muted); text-decoration: none; }
.bl-crumb a:hover { color: var(--bl-ink); }
.bl-art-title { font-size: 36px; font-weight: 800; letter-spacing: -.03em; line-height: 1.3; margin: 0 0 14px; }
.bl-art-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  font-size: 13.5px; color: var(--bl-muted); }
.bl-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.bl-tab { font-size: 13.5px; font-weight: 700; text-decoration: none; color: var(--bl-muted);
  padding: 7px 14px; border-radius: 999px; border: 1px solid var(--bl-line); }
.bl-tab:hover { color: var(--bl-ink); border-color: #cbd5e1; }
.bl-tab.active { background: var(--bl-ink); color: #fff; border-color: var(--bl-ink); }

/* ── 正文 + 目录 ── */
.bl-art-wrap { padding: 36px 0 76px; }
.bl-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 46px;
  max-width: 1120px; align-items: start; }
.bl-toc { position: sticky; top: 88px; max-height: calc(100vh - 120px); overflow-y: auto; }
.bl-toc-title { font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px; font-weight: 700; letter-spacing: .16em; color: var(--bl-muted);
  margin: 0 0 12px; text-transform: uppercase; }
.bl-toc ul { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--bl-line); }
.bl-toc li { margin: 0; }
.bl-toc a { display: block; padding: 6px 0 6px 14px; margin-left: -2px;
  border-left: 2px solid transparent; font-size: 13px; line-height: 1.55;
  color: var(--bl-muted); text-decoration: none; }
.bl-toc a:hover { color: var(--bl-ink); border-left-color: #cbd5e1; }
.bl-toc ul ul a { padding-left: 26px; font-size: 12.5px; }

.bl-article { font-size: 16px; line-height: 1.9; color: #1f2937; overflow-wrap: break-word; }
.bl-article > *:first-child { margin-top: 0; }
.bl-article h1 { font-size: 29px; font-weight: 800; margin: 0 0 18px; letter-spacing: -.02em; color: var(--bl-ink); }
.bl-article h2 { font-size: 23px; font-weight: 800; margin: 46px 0 15px; color: var(--bl-ink);
  padding-bottom: 9px; border-bottom: 1px solid var(--bl-line); scroll-margin-top: 84px; }
.bl-article h3 { font-size: 18.5px; font-weight: 700; margin: 32px 0 11px; color: var(--bl-ink);
  scroll-margin-top: 84px; }
.bl-article h4 { font-size: 16px; font-weight: 700; margin: 24px 0 8px; }
.bl-article p { margin: 0 0 17px; }
.bl-article strong { font-weight: 700; color: var(--bl-ink); }
.bl-article a { color: #0e7490; text-decoration: none; border-bottom: 1px solid #a5f3fc; }
.bl-article a:hover { border-bottom-color: #0e7490; }
.bl-article img { max-width: 100%; height: auto; border-radius: 10px; }
.bl-article hr { border: 0; border-top: 1px solid var(--bl-line); margin: 36px 0; }

.bl-anchor { float: left; margin-left: -.85em; padding-right: .3em;
  color: #cbd5e1; text-decoration: none; border: 0; opacity: 0; transition: .15s; }
.bl-article h2:hover .bl-anchor, .bl-article h3:hover .bl-anchor { opacity: 1; }

.bl-article ul, .bl-article ol { margin: 0 0 17px; padding-left: 25px; }
.bl-article li { margin: 6px 0; display: list-item; }
.bl-article ul > li { list-style: disc outside; }
.bl-article ol > li { list-style: decimal outside; }

.bl-article blockquote {
  margin: 0 0 20px; padding: 14px 20px; border-left: 3px solid var(--bl-violet);
  background: #faf8ff; color: #374151; border-radius: 0 12px 12px 0;
}
.bl-article blockquote p:last-child { margin-bottom: 0; }

.bl-article code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .87em; background: #f1f5f9; padding: 2px 6px; border-radius: 5px;
  color: #be123c; word-break: break-word;
}
.bl-article pre {
  margin: 0 0 22px; padding: 18px 20px; border-radius: 13px; overflow-x: auto;
  background: var(--bl-ink-2); border: 1px solid #23252d; line-height: 1.7;
}
.bl-article pre code { background: none; padding: 0; color: #e2e8f0; font-size: 13.5px;
  white-space: pre; word-break: normal; }

.bl-article table {
  width: 100%; border-collapse: collapse; margin: 0 0 22px; font-size: 14.5px;
  display: block; overflow-x: auto;
}
.bl-article th, .bl-article td { border: 1px solid var(--bl-line); padding: 10px 14px; text-align: left; }
.bl-article th { background: #f8fafc; font-weight: 700; color: var(--bl-ink); white-space: nowrap; }

/* 语法高亮 */
.hl .k, .hl .kd, .hl .kn, .hl .kr { color: #c792ea; }
.hl .s, .hl .s1, .hl .s2, .hl .sb { color: #c3e88d; }
.hl .c, .hl .c1, .hl .cm { color: #64748b; font-style: italic; }
.hl .n, .hl .nx { color: #e2e8f0; }
.hl .nf, .hl .nc { color: #82aaff; }
.hl .mi, .hl .mf, .hl .m { color: #f78c6c; }
.hl .o, .hl .p { color: #89ddff; }

@media (max-width: 1080px) {
  .bl-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .bl-toc { display: none; }
}
@media (max-width: 820px) {
  .bl-card { grid-template-columns: minmax(0, 1fr); }
  .bl-term { border-top: 1px solid rgba(255,255,255,.07); }
}
@media (max-width: 640px) {
  .bl-hero { padding: 52px 0 46px; }
  .bl-hero-title { font-size: 31px; }
  .bl-hero-sub { font-size: 15px; }
  .bl-card-body { padding: 22px 20px; }
  .bl-card-title { font-size: 22px; }
  .bl-art-title { font-size: 27px; }
  .bl-article { font-size: 15.5px; }
  .bl-article h2 { font-size: 20px; margin-top: 36px; }
  .bl-article pre { padding: 14px 15px; }
}