/* Sector 13: Haunted Woods Guide — 监控低保真 × 手电琥珀（DESIGN-BRIEF.md 决策记录）
   母版只给结构；本文件按本作官方美术从零重写：炭黑基底 / 琥珀 #e6b022 / 警示红 #c0392b /
   冷警蓝 #4a67a0 / 探测绿 #46c26a；扫描线覆层 + CCTV 角标 + 实体键帽 + 红线母题。 */
:root {
  --bg: #0c0e10;
  --bg2: #101316;
  --panel: #14181c;
  --panel2: #181d21;
  --line: #2a3138;
  --ink: #e9e7e1;
  --muted: #98a1a8;
  --amber: #e6b022;
  --amber-ink: #14100a;
  --red: #c0392b;
  --blue: #4a67a0;
  --green: #46c26a;
  --font: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Oswald", "Arial Narrow", sans-serif;
  --shadow: 3px 3px 0 rgba(0, 0, 0, .5);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16.5px/1.65 var(--font);
  -webkit-text-size-adjust: 100%;
}
/* 全屏扫描线：监控低保真覆层（不拦截交互） */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(180deg, rgba(255, 255, 255, .022) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
}
img { max-width: 100%; height: auto; }
a { color: var(--amber); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

.wrap { width: min(1100px, calc(100% - 2.2rem)); margin-inline: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 8px; top: 8px; background: var(--amber); color: #000; padding: 8px 12px; z-index: 60; }

/* ---------- 顶栏 ---------- */
.ribbon { background: var(--red); color: #fff; font: 600 13px/1.5 var(--display); letter-spacing: .08em; text-transform: uppercase; text-align: center; padding: .45rem 0; }
.topbar { background: var(--bg2); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.bar { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; min-height: 62px; padding: .45rem 0; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); font-weight: 700; }
.brand img { width: 40px; height: 40px; border: 1px solid var(--line); background: #000; }
.brand span { font: 600 16px/1.2 var(--display); text-transform: uppercase; letter-spacing: .05em; }
.brand:hover { text-decoration: none; }
.brand:hover span { color: var(--amber); }

.nav { margin-left: auto; display: flex; align-items: center; gap: 1.1rem; }
.nav > ul { list-style: none; display: flex; gap: 1.05rem; margin: 0; padding: 0; align-items: center; flex-wrap: wrap; }
.nav li { position: relative; }
.nav a { color: var(--ink); font: 500 13.5px/1.4 var(--display); text-transform: uppercase; letter-spacing: .09em; }
.nav li.active > a, .nav li.has-kids.active > a { color: var(--amber); }
.nav li.has-kids > a::after { content: " ▾"; opacity: .7; }
/* 下拉面板与父项之间禁止死区：面板不外移，hover 桥仍保留 */
.nav li.has-kids::after { content: ""; position: absolute; left: -10px; right: -10px; top: 100%; height: 12px; z-index: 39; }
.nav .kids { list-style: none; position: absolute; left: 0; top: 100%; min-width: 232px; margin: 0; padding: .4rem 0; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); display: none; z-index: 60; }
.nav li.has-kids:hover .kids, .nav li.has-kids:focus-within .kids { display: block; }
.nav .kids a { display: block; padding: .5rem .9rem; font-size: 13px; letter-spacing: .06em; border-left: 2px solid transparent; }
.nav .kids a:hover { background: var(--panel2); border-left-color: var(--amber); text-decoration: none; color: var(--amber); }
.nav .cta { background: var(--amber); color: var(--amber-ink); padding: .45rem .85rem; border: 1px solid var(--amber); box-shadow: var(--shadow); white-space: nowrap; }
.nav .cta:hover { background: transparent; color: var(--amber); text-decoration: none; }

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--bg2); border-bottom: 1px solid var(--line); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: var(--hero); background-size: cover; background-position: center 38%; filter: saturate(.85); }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,10,12,.45), rgba(8,10,12,.88) 88%), radial-gradient(120% 90% at 50% 30%, transparent 40%, rgba(0,0,0,.55)); }
.hero-in { position: relative; z-index: 2; padding: 4.6rem 0 3.6rem; }
.sticker { position: absolute; right: 0; top: 2rem; transform: rotate(-3deg); border: 2px dashed var(--amber); color: var(--amber); background: rgba(10,12,14,.75); font: 600 12px/1.35 var(--display); letter-spacing: .14em; text-align: center; padding: .5rem .7rem; text-transform: uppercase; }
.eyebrow { font: 600 13px/1.4 var(--display); letter-spacing: .22em; text-transform: uppercase; color: var(--amber); margin: 0 0 .8rem; }
.hero h1 { font: 700 clamp(2.3rem, 6vw, 4rem)/1.04 var(--display); text-transform: uppercase; letter-spacing: .02em; margin: 0 0 1rem; max-width: 15ch; text-shadow: 0 2px 0 rgba(0,0,0,.65), 0 0 26px rgba(0,0,0,.6); }
.lead { color: #d7d9db; font-size: 1.08rem; max-width: 58ch; margin: 0 0 1.6rem; }
.hero-cta { display: flex; gap: .8rem; flex-wrap: wrap; margin: 0; }
.btn { display: inline-block; background: var(--amber); color: var(--amber-ink); border: 1px solid var(--amber); padding: .7rem 1.2rem; font: 600 14px/1.2 var(--display); text-transform: uppercase; letter-spacing: .1em; box-shadow: var(--shadow); }
.btn:hover { background: transparent; color: var(--amber); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--amber); color: var(--amber); }

/* ---------- 事实条（HUD 读数格） ---------- */
.facts-strip { background: var(--bg2); border-bottom: 1px solid var(--line); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .8rem; padding: 1rem 0; }
.fact { border: 1px solid rgba(255,255,255,.22); background: rgba(0,0,0,.35); padding: .55rem .8rem; display: flex; flex-direction: column; gap: .1rem; }
.fact-k { font: 600 11px/1.4 var(--display); letter-spacing: .18em; text-transform: uppercase; color: var(--amber); }
.fact-v { font: 600 17px/1.3 var(--display); letter-spacing: .03em; }

/* ---------- 分区标题 / 卡片网格 ---------- */
main > .wrap { padding: 2.4rem 0 3rem; }
h2 { font: 600 clamp(1.35rem, 2.6vw, 1.7rem)/1.25 var(--display); text-transform: uppercase; letter-spacing: .05em; margin: 2.2rem 0 .9rem; padding-left: .7rem; border-left: 4px solid var(--amber); }
.grid-title, .section-head { margin-top: 2.6rem; }
.overline { display: block; font: 600 11.5px/1.4 var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--amber); margin-bottom: .3rem; }
.count-pill { display: inline-block; margin-left: .55rem; background: var(--amber); color: var(--amber-ink); font-size: .72em; padding: .05em .5em; border-radius: 999px; vertical-align: middle; }

.grid { display: flex; flex-wrap: wrap; gap: 1rem; margin: 1.1rem 0 1.6rem; }
.card { flex: 1 1 260px; display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--ink); min-width: 0; }
.card:hover { border-color: var(--amber); text-decoration: none; transform: translate(-1px, -1px); box-shadow: 4px 4px 0 rgba(0,0,0,.55); }
.thumb { position: relative; display: block; border-bottom: 1px solid var(--line); background: #000; overflow: hidden; }
.thumb img { aspect-ratio: 16/9; object-fit: cover; width: 100%; filter: saturate(.8) brightness(.92); transition: filter .2s; }
.card:hover .thumb img { filter: saturate(1) brightness(1); }
.pill-tag { position: absolute; left: .55rem; top: .55rem; background: var(--amber); color: var(--amber-ink); font: 600 10.5px/1 var(--display); letter-spacing: .14em; padding: .3rem .5rem; text-transform: uppercase; }
.card-body { padding: .9rem 1rem 1rem; display: flex; flex-direction: column; gap: .45rem; flex: 1; }
.card h3 { font: 600 1.02rem/1.3 var(--display); text-transform: uppercase; letter-spacing: .04em; margin: 0; }
.card p { margin: 0; color: var(--muted); font-size: .92rem; }
.go { color: var(--amber); font: 600 12.5px/1 var(--display); letter-spacing: .12em; text-transform: uppercase; margin-top: auto; }
.stamp { color: var(--muted); font-size: .75rem; letter-spacing: .04em; }
.card.sm .card-body { padding: .6rem .8rem .7rem; }
.card.sm h3 { font-size: .9rem; }

/* ---------- 文章页 ---------- */
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 2rem; align-items: start; }
.article-grid > div { min-width: 0; }
.crumb { font: 500 12px/1.6 var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: .7rem; }
.crumb a { color: var(--muted); }
.crumb .here { color: var(--amber); }
article { position: relative; background: var(--panel); border: 1px solid var(--line); padding: 1.6rem 1.7rem 1.9rem; box-shadow: var(--shadow); }
/* CCTV 四角角标 */
article::before, article::after { content: ""; position: absolute; width: 18px; height: 18px; pointer-events: none; }
article::before { top: 6px; left: 6px; border-top: 2px solid var(--amber); border-left: 2px solid var(--amber); }
article::after { bottom: 6px; right: 6px; border-bottom: 2px solid var(--amber); border-right: 2px solid var(--amber); }
article h1 { font: 700 clamp(1.7rem, 3.6vw, 2.35rem)/1.15 var(--display); text-transform: uppercase; letter-spacing: .03em; margin: 0 0 1rem; }
article h3 { font: 600 1.06rem/1.35 var(--display); text-transform: uppercase; letter-spacing: .05em; margin: 1.6rem 0 .6rem; color: #f2f0ea; }
article p { margin: .7rem 0; }
article ul, article ol { padding-left: 1.3rem; margin: .7rem 0; }
article li { margin: .3rem 0; }
article strong { color: #fff; }

code { font: 500 .88em/1.4 Consolas, "IBM Plex Mono", monospace; background: #0b0d0f; color: var(--green); border: 1px solid var(--line); border-bottom-width: 2px; padding: .08em .4em; white-space: nowrap; }
pre { background: #0b0d0f; border: 1px solid var(--line); padding: .8rem 1rem; overflow-x: auto; }

blockquote { margin: .9rem 0; padding: .5rem 1rem; border-left: 3px solid var(--blue); background: rgba(74,103,160,.08); color: #cfd4da; }

/* 直答框：红线母题（顶部一条警示红细线） */
.quick-answer { position: relative; border: 1px solid var(--line); border-top: 3px solid var(--red); background: var(--panel2); padding: 1.5rem 1.1rem .9rem; margin: 0 0 1.3rem; }
.quick-answer p { margin: 0; }
.qa-stamp { position: absolute; top: -0.85rem; left: .8rem; background: var(--red); color: #fff; font: 600 10.5px/1 var(--display); letter-spacing: .18em; text-transform: uppercase; padding: .32rem .55rem; }

/* callout */
.callout { border: 1px solid var(--line); border-left: 3px solid var(--blue); background: var(--panel2); padding: .8rem 1rem; margin: 1rem 0; }
.callout::before { content: "NOTE"; display: block; font: 600 10.5px/1 var(--display); letter-spacing: .18em; color: var(--blue); margin-bottom: .35rem; }
.callout.warn { border-left-color: var(--red); }
.callout.warn::before { content: "WARNING"; color: var(--red); }
.callout.tip { border-left-color: var(--amber); }
.callout.tip::before { content: "TIP"; color: var(--amber); }
.callout p:first-of-type { margin-top: 0; }
.callout p:last-of-type { margin-bottom: 0; }

/* 表格 */
.tbl-wrap { overflow-x: auto; margin: 1rem 0; border: 1px solid var(--line); }
table { border-collapse: collapse; width: 100%; font-size: .93rem; }
th { background: var(--panel2); color: var(--amber); font: 600 12px/1.4 var(--display); letter-spacing: .1em; text-transform: uppercase; text-align: left; padding: .55rem .7rem; border-bottom: 2px solid var(--line); }
td { padding: .55rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:nth-child(even) { background: rgba(255,255,255,.022); }
tbody tr:last-child td { border-bottom: 0; }

img.zoom { border: 1px solid var(--line); cursor: zoom-in; display: block; margin: 1.1rem auto; box-shadow: var(--shadow); }
img.zoom:hover { border-color: var(--amber); }

/* 目录侧栏 */
.toc { position: sticky; top: 4.6rem; background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--amber); padding: .9rem 1rem; box-shadow: var(--shadow); }
.toc-list { list-style: none; margin: .4rem 0 0; padding: 0; display: flex; flex-direction: column; gap: .45rem; }
.toc-list a { color: var(--muted); font-size: .87rem; line-height: 1.35; display: block; border-left: 2px solid transparent; padding-left: .55rem; }
.toc-list a:hover { color: var(--amber); border-left-color: var(--amber); text-decoration: none; }

/* Keep browsing */
.all-guides { margin-top: 2.6rem; }

/* ---------- 页脚 ---------- */
.foot { background: var(--bg2); border-top: 1px solid var(--line); padding: 1.6rem 0 2rem; margin-top: 1rem; }
.disclaimer { color: var(--muted); font-size: .84rem; max-width: 80ch; margin: 0 0 .7rem; }
.foot-links { margin: 0 0 .5rem; font-size: .9rem; }
.foot-links a { color: var(--ink); border-bottom: 1px solid var(--line); }
.foot-links a:hover { color: var(--amber); border-bottom: 1px solid var(--amber); text-decoration: none; }
.foot .muted { color: var(--muted); font-size: .8rem; margin: 0; letter-spacing: .03em; }

/* ---------- 广告位（Adsterra Native Banner：桌面指针门控；未配 key 时整块不渲染） ---------- */
@media (hover: hover) and (pointer: fine) {
  .ad-slot { display: block; }
}
@media not all and (hover: hover) and (pointer: fine) {
  .ad-slot { display: none; }
}
.ad-slot { margin: 1.4rem auto; }
.ad-inner { min-height: 1px; border: 1px dashed var(--line); background: var(--panel); overflow: hidden; }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .article-grid { grid-template-columns: 1fr; }
  .toc { position: static; order: -1; }
  .nav { width: 100%; margin-left: 0; }
  .sticker { position: static; display: inline-block; margin-bottom: 1rem; }
}
@media (max-width: 620px) {
  .bar { gap: .6rem; }
  .nav > ul { flex-wrap: wrap; gap: .7rem; white-space: normal; }
  .nav .kids { position: static; display: block; border: 0; box-shadow: none; background: transparent; padding: .2rem 0 0 .6rem; min-width: 0; }
  .nav .kids a { padding: .3rem .5rem; color: var(--muted); border-left: 2px solid var(--line); }
  .hero-in { padding: 3rem 0 2.4rem; }
  article { padding: 1.2rem 1rem 1.4rem; }
}