/* ==========================================================================
   /campus/「3D 方块校园」：三维地图铺满顶栏以下整屏。控件布局照 BlueMap（左上一条工具栏、
   左侧滑出菜单、右下缩放），外观全部用 site.css 的设计变量：像素字体、粗黑描边、斜面高光。
   脚本在 /assets/campus/campus.js（源码 tools/campus-viewer/），这里不写死颜色，深浅色跟着站点主题走。
   ========================================================================== */

body.campus-page {
  height: 100vh; height: 100dvh; overflow: hidden;
  display: flex; flex-direction: column; overscroll-behavior: none;
}
.campus-page .site-header { flex: none; }
.campus-app { position: relative; z-index: 0; flex: 1 1 auto; min-height: 0; }
/* .button 之类自带 display，会盖掉 hidden 属性；地图里一律以 hidden 为准 */
.campus-app [hidden] { display: none !important; }

/* ---------- 地图 ---------- */
.campus-viewport {
  position: absolute; inset: 0; overflow: hidden; isolation: isolate;
  background: linear-gradient(180deg, var(--sky-1) 0%, var(--sky-2) 52%, var(--sky-3) 100%);
  -webkit-user-select: none; user-select: none; -webkit-touch-callout: none;
}
.campus-viewport.is-night { background: linear-gradient(180deg, #050a18 0%, #0d1a3a 55%, #1d2f57 100%); }
.campus-viewport.is-night::before {
  content: ""; position: absolute; inset: 0 0 40% 0; pointer-events: none; opacity: .85;
  background-image:
    linear-gradient(#fff, #fff), linear-gradient(#dbe6ff, #dbe6ff), linear-gradient(#fff, #fff), linear-gradient(#ffe9b0, #ffe9b0);
  background-size: 2px 2px;
  background-repeat: no-repeat;
  background-position: 12% 18%, 31% 9%, 57% 22%, 78% 12%;
}
.campus-viewport:fullscreen { background-color: var(--bg); }
.campus-canvas {
  position: absolute; inset: 0; z-index: 0; display: block; width: 100%; height: 100%;
  touch-action: none; cursor: grab; outline: none;
}
.campus-canvas.is-dragging { cursor: grabbing; }
.campus-canvas.is-pointing { cursor: pointer; }
.campus-viewport[data-mode="free"] .campus-canvas { cursor: crosshair; }
.campus-canvas:focus-visible { outline: 3px solid var(--gold); outline-offset: -3px; }

/* ---------- 建筑标签（地图上的标记） ---------- */
.campus-labels { position: absolute; inset: 0; z-index: 1; overflow: hidden; pointer-events: none; }
.campus-label {
  position: absolute; left: 0; top: 0; visibility: hidden; will-change: transform;
  padding: 3px 7px; white-space: nowrap;
  font-family: var(--font-pixel); font-size: 12px; line-height: 16px; letter-spacing: .02em;
  color: var(--text); background: var(--panel); border: 2px solid var(--ink);
  box-shadow: inset -2px -2px 0 rgb(0 0 0 / .22), 0 3px 0 rgb(0 0 0 / .25);
}
.campus-label::after {
  content: ""; position: absolute; left: 50%; top: 100%; width: 6px; height: 5px; margin-left: -3px; background: var(--ink);
}
.campus-label.is-shown { visibility: visible; }
.campus-label.is-place { color: var(--muted); background: var(--panel-2); }
.campus-label.is-hover { background: var(--panel-2); color: var(--text); }
.campus-label.is-selected { color: #1b1b1b; background: var(--gold); }

/* ---------- 工具栏（左上，照 BlueMap 的顺序） ---------- */
.campus-bar {
  position: absolute; top: 12px; left: 12px; z-index: 5; max-width: calc(100% - 24px);
  display: flex; align-items: stretch; gap: 3px; padding: 3px;
  background: var(--ink); box-shadow: var(--drop);
}
.campus-bar-seg, .campus-zoom, .campus-modes { display: flex; gap: 3px; }
.cb-btn, .campus-bar-seg > button, .campus-modes > button {
  min-width: 42px; height: 42px; padding: 0 .6rem;
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  color: var(--text); background: var(--panel); border: 0; border-radius: 0; box-shadow: var(--shadow-up);
  font-family: var(--font-pixel); font-size: 1rem; line-height: 1; white-space: nowrap; cursor: pointer;
}
.cb-btn:hover, .campus-bar-seg > button:hover, .campus-modes > button:hover { background: var(--panel-2); }
.cb-btn:active, .campus-bar-seg > button:active, .campus-modes > button:active { box-shadow: var(--shadow-down); }
.campus-bar-seg > button[aria-pressed="true"], .campus-modes > button[aria-pressed="true"], .cb-btn[aria-pressed="true"] {
  color: var(--accent-ink); background: var(--accent); box-shadow: var(--shadow-down);
}
.px-icon { width: 18px; height: 18px; flex: none; fill: currentColor; }
[data-action="daynight"] .icon-night { display: none; }
[data-action="daynight"][aria-pressed="true"] .icon-day { display: none; }
[data-action="daynight"][aria-pressed="true"] .icon-night { display: block; }

.cb-pos {
  display: flex; align-items: center; gap: .45rem; padding: 0 .6rem;
  background: var(--panel); box-shadow: var(--shadow-up);
  font-family: var(--font-pixel); color: var(--muted);
}
.cb-pos label { display: flex; align-items: center; gap: .3rem; }
.cb-pos input {
  width: 6ch; height: 28px; padding: 0 .35rem; text-align: right;
  font-family: var(--font-pixel); font-size: .95rem; color: var(--text);
  background: var(--code-bg); border: 2px solid var(--ink); border-radius: 0; box-shadow: var(--shadow-down);
}
.cb-pos input:focus { outline: 3px solid var(--gold); outline-offset: 0; }
.campus-compass { display: inline-flex; }
.cb-compass .compass-needle { width: 24px; height: 24px; }
.compass-n { fill: var(--redstone-2); }
.compass-s { fill: #eef1f5; }

/* 右下：缩放 */
.campus-zoom {
  position: absolute; right: 12px; bottom: 44px; z-index: 4; flex-direction: column;
  padding: 3px; background: var(--ink); box-shadow: var(--drop);
}

/* 左下：方块数和说明 */
.campus-foot {
  position: absolute; left: 12px; right: 80px; bottom: 10px; z-index: 3; margin: 0;
  display: flex; flex-wrap: wrap; gap: .1rem 1.1rem; pointer-events: none;
  font-family: var(--font-pixel); font-size: 12px; line-height: 1.5;
  color: #fff; text-shadow: 1px 1px 0 rgb(0 0 0 / .7), -1px 0 0 rgb(0 0 0 / .3);
}
.campus-foot-note { opacity: .85; }

/* ---------- 选中的建筑 ---------- */
.campus-card {
  position: absolute; left: 12px; bottom: 40px; z-index: 6; width: min(340px, calc(100% - 24px));
  padding: .85rem 1rem 1rem; background: var(--panel); border: var(--edge); box-shadow: var(--drop);
}
.campus-card .kicker { margin-bottom: .2rem; font-size: .78rem; }
.campus-card h2 { margin: 0 2.2rem .55rem 0; font-family: var(--font-pixel); font-weight: 400; font-size: 1.3rem; line-height: 1.3; }
.campus-card-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .55rem; }
.campus-card-coords { margin: 0 0 .75rem; font-family: var(--font-pixel); font-size: 12px; color: var(--muted); }
.campus-card-note { margin: -.35rem 0 .75rem; color: var(--muted); font-size: .8rem; }
.campus-card .cb-btn { position: absolute; top: 8px; right: 8px; min-width: 34px; height: 34px; padding: 0; }
.campus-card .actions { gap: .5rem; }
.tag-recent { border-color: var(--lapis-2); }
.tag-building { border-color: var(--gold); background: rgb(243 195 61 / .18); }

/* ---------- 提示、通知 ---------- */
.campus-hint, .campus-toast {
  position: absolute; left: 50%; z-index: 7; margin: 0; translate: -50% 0;
  width: max-content; max-width: min(640px, calc(100% - 24px)); padding: .55rem .9rem;
  color: var(--text); background: var(--panel); border: var(--edge-thin); box-shadow: var(--drop);
  font-size: .88rem; font-weight: 750; text-align: center;
}
.campus-hint { top: 74px; }
.campus-toast { bottom: 56px; z-index: 8; }

/* ---------- 载入 ---------- */
.campus-loading {
  position: absolute; inset: 0; z-index: 10; display: grid; place-items: center; padding: 1rem;
  background: rgb(6 10 20 / .45);
}
.campus-loading[hidden] { display: none; }
.campus-loading-box {
  width: min(380px, 100%); padding: 1.25rem 1.4rem 1.4rem; text-align: center;
  background: var(--panel); border: var(--edge); box-shadow: var(--drop);
}
.campus-loading-title { margin: 0 0 .9rem; font-family: var(--font-pixel); font-size: 1.25rem; line-height: 1.3; }
.campus-progress { height: 20px; padding: 3px; background: var(--code-bg); border: var(--edge-thin); box-shadow: var(--shadow-down); }
.campus-progress > span { display: block; width: 0; height: 100%; background: var(--grass); box-shadow: var(--shadow-up); transition: width .15s steps(3); }
.campus-loading-note { margin: .7rem 0 0; color: var(--muted); font-size: .86rem; }
.campus-loading.is-error .campus-progress { display: none; }
.campus-loading .button { margin-top: 1rem; }

/* ---------- 菜单（左侧滑出） ---------- */
.campus-menu {
  position: absolute; top: 0; left: 0; bottom: 0; z-index: 9; width: min(360px, 100%);
  overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch;
  background: var(--panel); border-right: var(--edge); box-shadow: 8px 0 0 rgb(0 0 0 / .22);
  transform: translateX(calc(-100% - 12px)); visibility: hidden;
  transition: transform .2s ease, visibility 0s linear .2s;
}
.campus-menu.is-open { transform: none; visibility: visible; transition: transform .2s ease; }
.campus-menu-head {
  position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: .8rem;
  padding: .85rem 1rem .8rem; background: var(--panel); border-bottom: 3px solid var(--ink);
}
.campus-menu-head .kicker { margin-bottom: .1rem; font-size: .74rem; }
.campus-menu-title { margin: 0; font-family: var(--font-pixel); font-weight: 400; font-size: 1.4rem; line-height: 1.2; }
.campus-menu-section { padding: 1rem 1rem 1.1rem; border-bottom: 2px solid var(--line); }
.campus-menu-section:last-child { border-bottom: 0; }
.campus-menu-section h2 {
  display: flex; align-items: center; gap: .5rem; margin: 0 0 .75rem;
  font-family: var(--font-pixel); font-weight: 400; font-size: 1rem; letter-spacing: .06em;
}
.campus-menu-section h2::before {
  content: ""; width: 10px; height: 10px; flex: none; background: var(--grass);
  box-shadow: inset -2px -2px 0 rgb(0 0 0 / .3), inset 2px 2px 0 rgb(255 255 255 / .25);
}

.campus-sites { display: grid; gap: .5rem; }
.campus-site {
  display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: .1rem .75rem;
  width: 100%; padding: .6rem .75rem; text-align: left; cursor: pointer;
  color: var(--text); background: var(--panel-2); border: var(--edge-thin); border-radius: 0; box-shadow: var(--shadow-up);
}
.campus-site:hover { filter: brightness(1.08); }
.campus-site[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); }
.campus-site-block {
  grid-row: span 2; width: 34px; height: 34px;
  background: linear-gradient(var(--grass) 0 34%, var(--dirt) 34%); border: 2px solid var(--ink);
  box-shadow: inset -3px -3px 0 rgb(0 0 0 / .28), inset 3px 3px 0 rgb(255 255 255 / .2);
}
.campus-site strong { font-family: var(--font-pixel); font-weight: 400; font-size: 1.05rem; line-height: 1.2; }
.campus-site small { color: inherit; opacity: .82; font-size: .8rem; line-height: 1.4; }

.campus-modes { padding: 3px; margin-bottom: .6rem; background: var(--ink); }
.campus-modes > button { flex: 1 1 0; flex-direction: column; gap: .3rem; height: 58px; font-size: .9rem; }
.campus-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.campus-row .button { flex: 1 1 0; }
.campus-row .px-icon { width: 16px; height: 16px; }

.campus-featured { display: grid; gap: .45rem; margin-bottom: 1rem; }
.campus-feature {
  display: flex; flex-direction: column; align-items: flex-start; gap: .15rem; width: 100%;
  padding: .55rem .75rem; text-align: left; cursor: pointer;
  color: var(--text); background: var(--panel-2); border: var(--edge-thin); border-radius: 0; box-shadow: var(--shadow-up);
}
.campus-feature strong { font-family: var(--font-pixel); font-weight: 400; font-size: 1rem; line-height: 1.25; }
.campus-feature small { color: var(--muted); font-size: .78rem; }
.campus-feature:hover { filter: brightness(1.08); }
.campus-feature.is-active { outline: 3px solid var(--gold); outline-offset: -3px; }

.campus-search { position: relative; margin-bottom: .45rem; }
.campus-search .px-icon { position: absolute; left: .8rem; top: 50%; translate: 0 -50%; width: 16px; height: 16px; color: var(--muted); pointer-events: none; }
.campus-search .input { min-height: 44px; padding: .55rem .8rem .55rem 2.3rem; }
.campus-count { margin: 0 0 .45rem; color: var(--muted); font-size: .8rem; }
.campus-buildings { display: grid; gap: 2px; margin: 0; padding: 0; list-style: none; }
.campus-building {
  display: flex; align-items: center; gap: .55rem; width: 100%; padding: .5rem .55rem;
  color: var(--text); background: none; border: 0; text-align: left; font-weight: 650; cursor: pointer;
}
.campus-building::before { content: ""; width: 6px; height: 6px; flex: none; background: var(--muted); }
.campus-building:hover { background: var(--panel-2); }
.campus-building.is-active { background: var(--panel-2); box-shadow: inset 4px 0 0 var(--gold); }
.campus-building span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.campus-building small { flex: none; color: var(--muted); font-size: .74rem; }
.campus-building small.tag { color: var(--text); }
.campus-empty { padding: .6rem .55rem; color: var(--muted); font-size: .86rem; }

/* 设置：Minecraft 选项按钮的样子，「标签：开」 */
.campus-options { display: grid; gap: .45rem; }
.mc-option {
  display: flex; align-items: center; justify-content: space-between; gap: .8rem;
  width: 100%; min-height: 42px; padding: .45rem .8rem; cursor: pointer;
  color: #fff; background: #4b5163; border: var(--edge-thin); border-radius: 0; box-shadow: var(--shadow-up);
  font-weight: 750; text-align: left;
}
.mc-option:hover { filter: brightness(1.12); }
.mc-option:active { box-shadow: var(--shadow-down); }
.mc-option [data-value] { font-family: var(--font-pixel); font-weight: 400; color: #ffe08a; }
.mc-option[aria-pressed="false"] [data-value] { color: #c9ced8; }
.mc-range { display: grid; gap: .35rem; margin-top: .2rem; font-weight: 750; }
.mc-range-row { display: flex; justify-content: space-between; }
.mc-range-row output { font-family: var(--font-pixel); font-weight: 400; color: var(--muted); }
.mc-range input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 24px; margin: 0; background: transparent; cursor: pointer; }
.mc-range input[type="range"]::-webkit-slider-runnable-track { height: 10px; background: var(--code-bg); border: 2px solid var(--ink); box-shadow: var(--shadow-down); }
.mc-range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 24px; margin-top: -9px;
  background: #c6c9d1; border: 2px solid var(--ink); border-radius: 0; box-shadow: var(--shadow-up);
}
.mc-range input[type="range"]::-moz-range-track { height: 6px; background: var(--code-bg); border: 2px solid var(--ink); }
.mc-range input[type="range"]::-moz-range-thumb { width: 10px; height: 20px; background: #c6c9d1; border: 2px solid var(--ink); border-radius: 0; }
.mc-range input[type="range"]:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }

.campus-keys { display: grid; grid-template-columns: auto 1fr; gap: .35rem .8rem; margin: 0; font-size: .85rem; }
.campus-keys dt { font-weight: 800; white-space: nowrap; }
.campus-keys dd { margin: 0; color: var(--muted); }
.campus-keys kbd {
  display: inline-block; min-width: 1.6em; padding: 0 .3rem; text-align: center;
  font-family: var(--font-pixel); font-size: 12px; line-height: 18px;
  color: var(--text); background: var(--panel-2); border: 2px solid var(--ink); box-shadow: var(--shadow-up);
}
.campus-keys-title { margin: .9rem 0 .4rem; font-weight: 800; font-size: .85rem; }
.campus-about p { margin: 0 0 .6rem; color: var(--muted); font-size: .84rem; line-height: 1.65; }
.campus-about p:last-child { margin-bottom: 0; }
.campus-about a { color: var(--link); }

/* 宽屏打开菜单时，工具栏、建筑卡片、底部说明挪到菜单右边，不被盖住 */
@media (min-width: 761px) {
  .campus-bar, .campus-card, .campus-foot { transition: left .2s ease; }
  .campus-viewport:has(.campus-menu.is-open) :is(.campus-bar, .campus-card, .campus-foot) { left: calc(360px + 12px); }
  .campus-viewport:has(.campus-menu.is-open) .campus-bar { max-width: calc(100% - 360px - 24px); }
}
@media (min-width: 761px) and (max-width: 1000px) {
  .campus-viewport:has(.campus-menu.is-open) .campus-bar .cb-wide { display: none; }   /* 菜单里都有，工具栏让出位置 */
}

/* ---------- 窄屏：工具栏只留菜单、校区、罗盘，其余收进菜单 ---------- */
@media (max-width: 760px) {
  .cb-wide { display: none !important; }
  .campus-bar { top: 8px; left: 8px; max-width: calc(100% - 16px); }
  .campus-zoom { right: 8px; bottom: 36px; }
  .campus-foot { left: 8px; right: 64px; bottom: 6px; }
  .campus-foot-note { display: none; }
  .campus-card { left: 8px; right: 8px; bottom: 8px; width: auto; }
  .campus-viewport:has(.campus-card:not([hidden])) .campus-zoom { bottom: 214px; }
  .campus-menu { width: 100%; border-right: 0; box-shadow: none; }
  .campus-hint { top: 62px; font-size: .8rem; }
}
@media (prefers-reduced-motion: reduce) {
  .campus-menu, .campus-menu.is-open { transition: none; }
}