/* 河北产业带地图 — 样式
 * 视觉母题：车间设备铭牌 + 记录纸 + 荧光笔标注
 * 主导产业是主角（最大字号），县名退居其次：来的人是搜产业，不是搜地名
 */

:root {
  --paper: #E9EBE5;
  --paper-2: #F4F5F1;
  --ink: #14191C;
  --muted: #6E7B77;
  --line: #CBD3CE;
  --line-soft: #DCE2DD;
  --machine: #1F4F45;
  --machine-2: #2C6B5C;
  --brass: #B0812C;
  --marker: #F2CE5B;
  --hot: #D2402A;

  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "JetBrains Mono", Consolas, "Courier New", monospace;

  --gap: 10px;
  --maxw: 1400px;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  /* 抑制移动端橡皮筋回弹与下拉刷新 */
  overscroll-behavior-y: none;
  /* 短列表时保留滚动条槽位，避免纵向滚动条显隐造成横向抖动 */
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image: radial-gradient(rgba(20, 25, 28, .055) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink);
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 1.5;
}

button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--hot);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper-2);
  padding: 8px 14px;
  z-index: 60;
}
.skip:focus { left: 8px; top: 8px; }

.shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- 顶部：导言区（随页面滚走）+ 搜索/筛选（吸附） ----------
 * 关键约束：吸顶区（.mast）高度必须恒定。
 * 旧实现把 hero / eggs 折叠进吸顶区，折叠会改变文档总高度，
 * 导致下方内容整体位移、scrollY 被浏览器钳制，表现为页面自动回弹。
 * 现改为导言区不吸顶、自然滚走；吸顶区只放搜索 + 筛选，高度恒定。
 * 吸顶状态仅以投影标示，不改变任何尺寸。
 */

#sentinel {
  height: 1px;
  margin-bottom: -1px;
}

.mast {
  position: sticky;
  top: 0;
  z-index: 40;
  transition: box-shadow .2s ease;
}
.mast.is-stuck { box-shadow: 0 6px 18px rgba(20, 25, 28, .22); }

.lead,
.mast__plate {
  background-color: var(--machine);
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px;
  color: #EFF3EE;
}

.mast__plate { border-bottom: 3px solid var(--ink); }

.lead__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 16px 14px;
}

.mast__plate-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 16px 14px;
}

.wordmark {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(239, 243, 238, .22);
  padding-bottom: 10px;
}

.wordmark__mark {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .06em;
}

.wordmark__latin {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(239, 243, 238, .62);
}

.wordmark__stamp {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  border: 1px solid rgba(239, 243, 238, .35);
  padding: 3px 8px;
  color: rgba(239, 243, 238, .8);
}

.hero {
  margin: 14px 0 0;
  max-width: 62ch;
}

.hero__title {
  margin: 0;
  font-size: clamp(26px, 5.4vw, 50px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: .01em;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(180deg, transparent 18%, var(--marker) 18%, var(--marker) 92%, transparent 92%);
  color: var(--ink);
  padding: 0 .1em;
}

.hero__sub {
  margin: 10px 0 0;
  font-size: 13.5px;
  color: rgba(239, 243, 238, .74);
  max-width: 54ch;
}

/* 搜索框 */
.find {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.find__box {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .35);
}

.find__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  padding: 0 10px 0 12px;
  border-right: 1px solid var(--line);
  align-self: stretch;
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.find__input {
  flex: 1 1 auto;
  border: 0;
  background: transparent;
  padding: 12px 12px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  min-width: 0;
}
.find__input:focus { outline: none; }
.find__input::placeholder { color: #9AA6A2; }

.find__clear {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0 12px;
  font-size: 18px;
  line-height: 1;
}
.find__clear:hover { color: var(--hot); }

.find__roll {
  border: 2px solid var(--marker);
  background: transparent;
  color: var(--marker);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 0 14px;
  cursor: pointer;
  white-space: nowrap;
}
.find__roll:hover { background: var(--marker); color: var(--machine); }

.eggs {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.eggs__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: rgba(239, 243, 238, .55);
  margin-right: 2px;
}

.egg {
  border: 1px solid rgba(239, 243, 238, .3);
  background: rgba(239, 243, 238, .06);
  color: rgba(239, 243, 238, .88);
  font-size: 12.5px;
  padding: 3px 9px;
  cursor: pointer;
  border-radius: 999px;
}
.egg:hover { background: var(--marker); color: var(--machine); border-color: var(--marker); }

/* ---------- 筛选条 ---------- */

.bar {
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
}

.bar__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 9px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bar__row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.cities {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  /* 城市横滚到头时不要把滚动传递给页面 */
  overscroll-behavior-x: contain;
  padding-bottom: 2px;
  scrollbar-width: thin;
  flex: 1 1 auto;
}

.city {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  padding: 4px 11px;
  cursor: pointer;
  white-space: nowrap;
  border-radius: 999px;
}
.city:hover { border-color: var(--machine); }
.city.is-on {
  background: var(--machine);
  border-color: var(--machine);
  color: #EFF3EE;
  font-weight: 700;
}

.city__n {
  font-family: var(--font-mono);
  font-size: 10px;
  margin-left: 5px;
  opacity: .5;
}

.readout {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--muted);
  white-space: nowrap;
}

.readout b {
  font-size: 20px;
  font-weight: 800;
  color: var(--hot);
  letter-spacing: 0;
}

.opts {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--muted);
}

.opts select {
  font: inherit;
  border: 1px solid var(--line);
  background: #fff;
  padding: 3px 6px;
  color: var(--ink);
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}
.switch input { accent-color: var(--machine); }

/* ---------- 铭牌网格 ---------- */

/* 结果区保底高度：筛选后列表骤短时，减小 scrollY 被钳制造成的跳动 */
main { padding: 18px 0 56px; min-height: 50vh; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(178px, 1fr));
  gap: var(--gap);
}

.plate {
  position: relative;
  text-align: left;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 24px 12px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 132px;
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}

.plate::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: var(--machine);
  opacity: .85;
}

.plate:hover {
  transform: translate(-1px, -2px);
  border-color: var(--machine);
  box-shadow: 4px 4px 0 rgba(20, 25, 28, .16);
}

.plate__badge {
  position: absolute;
  top: 7px;
  left: 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .12em;
  color: var(--brass);
  border: 1px solid var(--brass);
  padding: 0 4px;
}

.plate__ind {
  font-size: 20px;
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: .01em;
  word-break: break-word;
}

.plate__loc {
  font-size: 12.5px;
  color: var(--ink);
  font-weight: 600;
}
.plate__loc span { color: var(--muted); font-weight: 400; }

.plate__tags {
  margin-top: auto;
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.45;
}

mark {
  background: linear-gradient(180deg, transparent 22%, var(--marker) 22%, var(--marker) 92%, transparent 92%);
  color: inherit;
  padding: 0 1px;
}

.empty {
  border: 1px dashed var(--line);
  background: var(--paper-2);
  padding: 36px 20px;
  text-align: center;
}
.empty h3 { margin: 0 0 6px; font-size: 18px; }
.empty p { margin: 0 0 14px; color: var(--muted); font-size: 13.5px; }

.btn {
  border: 2px solid var(--ink);
  background: var(--paper-2);
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(20, 25, 28, .2);
}
.btn:hover { background: var(--machine); color: #EFF3EE; border-color: var(--machine); }

/* ---------- 详情弹层 ---------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.modal[hidden] { display: none; }

.modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(20, 25, 28, .5);
  border: 0;
  padding: 0;
  cursor: pointer;
}

.modal__panel {
  position: relative;
  width: min(640px, 100%);
  max-height: 86vh;
  overflow: auto;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  border-bottom: 0;
  box-shadow: 0 -10px 0 rgba(20, 25, 28, .18);
  padding: 20px;
}

.modal__title {
  margin: 4px 0 2px;
  font-size: 26px;
  font-weight: 900;
}

.modal__where { font-size: 13px; color: var(--muted); }

.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  border: 1px solid var(--line);
  background: #fff;
  width: 32px;
  height: 32px;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.modal__close:hover { background: var(--hot); color: #fff; border-color: var(--hot); }

.field { margin-top: 16px; }

.field__k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--brass);
  margin-bottom: 6px;
}

.field__v { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 14px; }

.tag {
  border: 1px solid var(--line);
  background: #fff;
  padding: 3px 9px;
  font-size: 13px;
  cursor: pointer;
  border-radius: 999px;
}
.tag:hover { border-color: var(--machine); background: var(--machine); color: #EFF3EE; }
.tag--lead { border-color: var(--machine); background: var(--machine); color: #EFF3EE; font-weight: 700; }
.tag--lead:hover { background: var(--ink); border-color: var(--ink); }

.field__note { font-size: 12px; color: var(--muted); }

/* ---------- 页脚 ---------- */

.foot {
  border-top: 3px solid var(--ink);
  background: var(--machine);
  color: rgba(239, 243, 238, .8);
  font-size: 12.5px;
}
.foot__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 16px 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}
.foot b { color: #EFF3EE; }

@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .lead__inner { padding: 12px 12px 10px; }
  .mast__plate-inner { padding: 10px 12px 12px; }
  .find { gap: 6px; }
  .find__roll { padding: 0 12px; flex: 0 0 auto; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(142px, 1fr)); gap: 8px; }
  .plate { min-height: 118px; padding: 24px 10px 10px; }
  .plate__ind { font-size: 17px; }
  .shell { padding: 0 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}