/* pstack 拆解 · 共享样式 */
:root {
  --ink: #070b16;
  --ink-2: #0d1424;
  --paper: #eef2fa;
  --line: rgba(126, 156, 214, .16);
  --line-2: rgba(126, 156, 214, .3);
  --blue: #4f8ff7;
  --blue-dim: #2a4d8f;
  --orange: #ff8a3d;
  --cyan: #22d3c5;
  --rose: #ff6b8a;
  --sand: #f2c14e;
  --violet: #a78bfa;
  --text: #e8eefb;
  --muted: #93a4c4;
  --faint: #6a7893;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, monospace;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--ink); color: var(--text);
  font-family: var(--sans); line-height: 1.8; font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(79,143,247,.14), transparent 60%),
    radial-gradient(760px 520px at 92% 8%, rgba(255,138,61,.09), transparent 60%),
    radial-gradient(1000px 700px at 60% 108%, rgba(34,211,197,.08), transparent 60%);
}
.wrap { position: relative; z-index: 1; max-width: 1180px; margin: 0 auto; padding: 0 32px 120px; }

/* ---------- 顶栏 ---------- */
.rail {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(7,11,22,.78);
  border-bottom: 1px solid var(--line);
}
.rail-in { max-width: 1180px; margin: 0 auto; padding: 14px 32px; display: flex; align-items: center; gap: 18px; }
.brand { font-family: var(--mono); font-size: 12px; letter-spacing: .18em; color: var(--blue); text-transform: uppercase; }
.brand b { color: var(--text); font-weight: 600; }
.rail nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.rail nav a {
  font-family: var(--mono); font-size: 11px; color: var(--faint); text-decoration: none;
  padding: 4px 8px; border-radius: 6px; border: 1px solid transparent;
}
.rail nav a:hover { color: var(--text); background: rgba(126,156,214,.08); }
.rail nav a.on { color: var(--ink); background: var(--blue); font-weight: 700; }

/* ---------- 标题区 ---------- */
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--orange); margin-bottom: 18px; }
h1 { font-size: clamp(34px, 5.6vw, 64px); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 20px; font-weight: 700; }
h1 .hl { background: linear-gradient(180deg, transparent 62%, rgba(79,143,247,.34) 62%); }
h1 .hl-o { background: linear-gradient(180deg, transparent 62%, rgba(255,138,61,.32) 62%); }
.lede { font-size: 19px; color: var(--muted); max-width: 780px; margin: 0 0 40px; }
.lede b { color: var(--text); font-weight: 600; }

h2 { font-size: 27px; letter-spacing: -.01em; margin: 72px 0 18px; font-weight: 700; display: flex; align-items: baseline; gap: 14px; }
h2 .n { font-family: var(--mono); font-size: 14px; color: var(--blue); font-weight: 400; }
h3 { font-size: 19px; margin: 34px 0 10px; font-weight: 600; color: var(--text); }
p { margin: 0 0 16px; max-width: 820px; color: #cfdaef; }
p.sm { font-size: 14.5px; color: var(--muted); }
code, .k {
  font-family: var(--mono); font-size: .92em; color: var(--cyan);
  background: rgba(34,211,197,.09); border: 1px solid rgba(34,211,197,.18);
  padding: 1px 6px; border-radius: 5px; white-space: nowrap;
}
code.p { color: var(--sand); background: rgba(242,193,78,.08); border-color: rgba(242,193,78,.2); }

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 14px; margin: 26px 0; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: linear-gradient(160deg, rgba(20,28,48,.92), rgba(13,20,36,.7));
  border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px;
  position: relative; overflow: hidden;
}
.card::after { content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: var(--accent, var(--blue)); opacity: .8; }
.card .ct { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--accent, var(--blue)); margin-bottom: 8px; text-transform: uppercase; }
.card .ch { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.card .cb { font-size: 14.5px; color: var(--muted); line-height: 1.75; }
.card.warn { --accent: var(--rose); }
.card.ok { --accent: var(--cyan); }
.card.warm { --accent: var(--orange); }
.card.violet { --accent: var(--violet); }

.note { border-left: 3px solid var(--orange); background: rgba(255,138,61,.07); padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 22px 0; font-size: 15px; color: #f0d9c6; }
.note.blue { border-color: var(--blue); background: rgba(79,143,247,.08); color: #cfdffa; }
.note b { color: #fff; }

.quote { border-left: 3px solid var(--sand); background: rgba(242,193,78,.06); padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 20px 0; font-size: 15px; line-height: 1.75; color: #e6dcc4; font-family: var(--mono); }
.quote b { color: #fff; }

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14.5px; }
th { text-align: left; font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); font-weight: 400; padding: 0 14px 10px 0; border-bottom: 1px solid var(--line-2); }
td { padding: 12px 14px 12px 0; border-bottom: 1px solid var(--line); color: var(--muted); vertical-align: top; }
td:first-child { color: var(--text); font-weight: 600; }
tr:hover td { background: rgba(126,156,214,.04); }

ul.tick { list-style: none; padding: 0; margin: 18px 0; }
ul.tick li { position: relative; padding-left: 26px; margin-bottom: 10px; color: #cfdaef; }
ul.tick li::before { content: "→"; position: absolute; left: 0; color: var(--blue); font-family: var(--mono); }

/* ---------- 图 ---------- */
figure { margin: 38px 0; }
figcaption { font-size: 13.5px; color: var(--faint); margin-top: 12px; font-family: var(--mono); letter-spacing: .04em; }
figcaption b { color: var(--muted); font-weight: 400; }
.svgbox { background: linear-gradient(180deg, rgba(13,20,36,.72), rgba(9,14,26,.5)); border: 1px solid var(--line); border-radius: 16px; padding: 24px; overflow-x: auto; }
svg { display: block; max-width: 100%; height: auto; }
svg text { font-family: var(--sans); }
svg .m { font-family: var(--mono); }
svg .tt { fill: var(--text); }
svg .mu { fill: var(--muted); }
svg .fa { fill: var(--faint); }
svg .cy { fill: var(--cyan); }
svg .bl { fill: var(--blue); }
svg .or { fill: var(--orange); }
svg .rd { fill: var(--rose); }
svg .sa { fill: var(--sand); }
svg .vi { fill: var(--violet); }
svg .st-b { stroke: var(--blue); }
svg .st-o { stroke: var(--orange); }
svg .st-c { stroke: var(--cyan); }
svg .st-v { stroke: var(--violet); }
svg .st-r { stroke: var(--rose); }
svg .st-s { stroke: var(--sand); }
svg .st-l { stroke: var(--line-2); }

/* ---------- 正文里的同色标记（与上面 svg 作用域对齐） ---------- */
p .m, li .m, td .m, .note .m, .card .m, b.m { font-family: var(--mono); }
p .cy, li .cy, td .cy, .note .cy, .card .cy { color: var(--cyan); }
p .bl, li .bl, td .bl, .note .bl, .card .bl { color: var(--blue); }
p .or, li .or, td .or, .note .or, .card .or { color: var(--orange); }
p .rd, li .rd, td .rd, .note .rd, .card .rd { color: var(--rose); }
p .sa, li .sa, td .sa, .note .sa, .card .sa { color: var(--sand); }
p .vi, li .vi, td .vi, .note .vi, .card .vi { color: var(--violet); }
p .fa, li .fa, .note .fa { color: var(--faint); }

/* ---------- 动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.draw .dl { stroke-dasharray: var(--len, 1200); stroke-dashoffset: var(--len, 1200); }
.draw.in .dl { animation: dl 1.5s cubic-bezier(.4,0,.2,1) forwards; }
@keyframes dl { to { stroke-dashoffset: 0; } }
.draw .df { opacity: 0; }
.draw.in .df { animation: df .8s ease forwards .5s; }
@keyframes df { to { opacity: 1; } }
.pulse-s { animation: pls 2.8s ease-in-out infinite; transform-origin: center; }
@keyframes pls { 0%,100% { opacity: .45; } 50% { opacity: 1; } }
.flowline { stroke-dasharray: 6 8; animation: fl 1.4s linear infinite; }
@keyframes fl { to { stroke-dashoffset: -28; } }
.rise { opacity: 0; transform: translateY(16px) scale(.98); }
.in .rise { animation: rs .7s cubic-bezier(.2,.7,.2,1) forwards; }
@keyframes rs { to { opacity: 1; transform: none; } }

/* ---------- 翻页 ---------- */
.pager { display: flex; justify-content: space-between; gap: 14px; margin-top: 72px; padding-top: 28px; border-top: 1px solid var(--line); }
.pager a { text-decoration: none; color: var(--muted); border: 1px solid var(--line); border-radius: 12px; padding: 14px 20px; font-size: 14px; transition: .25s; flex: 1; }
.pager a:hover { border-color: var(--blue); color: var(--text); background: rgba(79,143,247,.07); }
.pager a .pl { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .18em; color: var(--faint); text-transform: uppercase; }
.pager a.next { text-align: right; }
@media (max-width: 900px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } .wrap { padding: 0 18px 80px; } }