/* ============================================================================
 * 医院 3D 室内导航 Demo · 样式
 * ========================================================================== */
:root {
  --bg: #eaf1f9;
  --card: #ffffff;
  --ink: #16263a;
  --ink2: #5a6b81;
  --ink3: #8b9aad;
  --line: #e5ecf5;
  --primary: #2f7cf6;
  --primary-d: #1e5fd0;
  --primary-l: #eaf2ff;
  --green: #16a34a;
  --red: #e11d48;
  --amber: #f59e0b;
  --shadow: 0 8px 28px rgba(23, 43, 77, .12);
  --shadow-s: 0 2px 10px rgba(23, 43, 77, .10);
  --sheet-h: 0px;
  --sky-1: #e6f0fb;
  --sky-2: #f7fbff;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0; height: 100%; overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; border: 0; background: none; color: inherit; cursor: pointer; }

#app { position: fixed; inset: 0; overflow: hidden; }
#scene {
  position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 50% 8%, #ffffff 0%, var(--sky-1) 42%, #dce8f7 100%);
}
#scene::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(78% 62% at 50% 46%, rgba(255,255,255,0) 45%, rgba(190,209,232,.35) 100%);
}
#scene canvas { display: block; width: 100%; height: 100%; touch-action: none; }

/* ---------------- POI 标签 ---------------- */
.labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

.pin {
  position: absolute; top: 0; left: 0;
  width: 30px; height: 30px; border-radius: 50%;
  background: #fff;
  border: 1.5px solid var(--pin-color, var(--primary));
  box-shadow: 0 3px 10px rgba(20, 40, 70, .18);
  display: flex; align-items: center; justify-content: center;
  pointer-events: auto;
  padding: 0;
  transition: transform .12s ease, box-shadow .18s ease;
  will-change: transform;
  font-size: 13px;
  line-height: 1;
}
.pin::after {
  content: ''; position: absolute; bottom: -7px; left: 50%; transform: translateX(-50%);
  width: 2px; height: 7px; background: var(--pin-color, var(--primary)); opacity: .55;
}
.pin:hover { box-shadow: 0 6px 16px rgba(20, 40, 70, .26); }
.pin.is-active {
  box-shadow: 0 0 0 5px rgba(47, 124, 246, .18), 0 6px 18px rgba(20, 40, 70, .25);
  z-index: 5;
}
.pin.is-active .pin-ico { transform: scale(1.12); }
.pin-ico { display: block; }

/* ---------------- 顶部栏 ---------------- */
.topbar {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; align-items: center; gap: 8px;
  padding: 12px 12px 6px;
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
  z-index: 20;
  pointer-events: none;
}
.topbar > * { pointer-events: auto; }

.building {
  display: flex; align-items: center; gap: 6px;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(10px);
  border-radius: 12px; padding: 0 10px; height: 42px;
  box-shadow: var(--shadow-s);
}
.b-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 3px var(--primary-l); }
.building select {
  border: 0; background: transparent; font-size: 14px; font-weight: 600;
  color: var(--ink); outline: none; font-family: inherit; cursor: pointer;
  max-width: 84px;
  padding-right: 2px;
}

.search {
  flex: 1; display: flex; align-items: center; gap: 6px;
  height: 42px; padding: 0 12px;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  box-shadow: var(--shadow-s);
  min-width: 0;
}
.s-ico { font-size: 14px; opacity: .6; }
.search input {
  flex: 1; min-width: 0; border: 0; outline: none; background: transparent;
  font-size: 14px; color: var(--ink); font-family: inherit;
}
.search input::placeholder { color: var(--ink3); }
.search input::-webkit-search-cancel-button { display: none; }
.s-clear { display: none; color: var(--ink3); font-size: 13px; padding: 4px; }
.search.has-value .s-clear { display: block; }

.icon-btn {
  width: 42px; height: 42px; border-radius: 12px; flex: 0 0 auto;
  background: rgba(255, 255, 255, .97); box-shadow: var(--shadow-s);
  font-size: 16px; font-weight: 700; color: var(--ink2);
  display: flex; align-items: center; justify-content: center;
}
.icon-btn:active { transform: scale(.96); }

/* ---------------- 快捷入口 ---------------- */
.chips {
  position: absolute; left: 0; right: 0; top: 62px;
  display: flex; gap: 8px; padding: 4px 12px 8px;
  overflow-x: auto; z-index: 16;
  scrollbar-width: none;
  transition: opacity .2s, transform .2s;
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto; display: flex; align-items: center; gap: 4px;
  height: 32px; padding: 0 12px; border-radius: 999px;
  background: rgba(255, 255, 255, .94);
  box-shadow: var(--shadow-s);
  font-size: 13px; color: var(--ink2); font-weight: 500;
  white-space: nowrap;
}
.chip span { font-size: 13px; }
.chip:active { transform: scale(.97); background: var(--primary-l); color: var(--primary-d); }
.chips.is-hidden { opacity: 0; pointer-events: none; transform: translateY(-6px); }

/* ---------------- 搜索结果 ---------------- */
.search-panel {
  position: absolute; left: 12px; right: 12px; top: 62px;
  max-height: 46vh; overflow-y: auto;
  background: #fff; border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 30; display: none;
  padding: 6px;
}
.search-panel.show { display: block; animation: pop .16s ease; }
@keyframes pop { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.res-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px; border-radius: 10px; width: 100%; text-align: left;
}
.res-item:active, .res-item:hover { background: #f4f8ff; }
.res-ico {
  width: 32px; height: 32px; border-radius: 9px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center; font-size: 15px;
}
.res-main { flex: 1; min-width: 0; }
.res-name { font-size: 14px; font-weight: 600; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.res-sub { font-size: 12px; color: var(--ink3); margin-top: 2px; }
.res-empty { padding: 22px 12px; text-align: center; color: var(--ink3); font-size: 13px; }

/* ---------------- 楼层 ---------------- */
.floor-rail {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 6px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(10px);
  padding: 6px; border-radius: 14px;
  box-shadow: var(--shadow-s);
  z-index: 18;
  transition: bottom .25s ease, top .25s ease;
}
.floor-btn {
  width: 44px; height: 38px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; color: var(--ink2);
  position: relative;
}
.floor-btn.is-active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(47,124,246,.35); }
.floor-all { font-size: 12px; }
.floor-btn.has-route::after {
  content: ''; position: absolute; top: 5px; right: 6px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--amber);
}
.floor-btn.is-active.has-route::after { background: #fff; }

/* ---------------- 复位按钮 ---------------- */
.fab {
  position: absolute; right: 14px;
  bottom: calc(var(--sheet-h) + 16px + var(--safe-b));
  width: 46px; height: 46px; border-radius: 50%;
  background: #fff; box-shadow: var(--shadow);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0; z-index: 18; color: var(--ink2);
  transition: bottom .26s cubic-bezier(.22,1,.36,1), opacity .2s;
}
.fab-ico { font-size: 15px; line-height: 1; }
.fab-txt { font-size: 10px; margin-top: 1px; }
.fab:active { transform: scale(.94); }

/* ---------------- 底部面板 ---------------- */
.sheet {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: #fff;
  border-radius: 20px 20px 0 0;
  box-shadow: 0 -6px 30px rgba(23, 43, 77, .14);
  padding: 8px 16px calc(16px + var(--safe-b));
  max-height: 54vh; overflow-y: auto;
  z-index: 22;
  transition: transform .26s cubic-bezier(.22,1,.36,1);
  -webkit-overflow-scrolling: touch;
}
.sheet::before {
  content: ''; display: block; width: 38px; height: 4px; border-radius: 2px;
  background: #e2e9f2; margin: 0 auto 10px;
}
@media (min-width: 720px) {
  .sheet {
    left: 50%; right: auto; width: 560px; transform: translateX(-50%);
    border-radius: 20px; bottom: 16px; max-height: 60vh;
  }
  .fab { bottom: 24px; right: calc(50% - 300px - 62px); }
}

.sheet-title { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.sheet-title h2 { font-size: 17px; margin: 0; letter-spacing: .2px; }
.sheet-sub { color: var(--ink3); font-size: 12px; }

.tip-line { color: var(--ink2); font-size: 13px; line-height: 1.65; margin: 4px 0 10px; }
.tip-line b { color: var(--ink); }

/* 收藏 */
.fav-head { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink3); margin: 12px 0 6px; }
.fav-head::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.fav-list { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
.fav-list::-webkit-scrollbar { display: none; }
.fav-item {
  flex: 0 0 auto; display: flex; align-items: center; gap: 6px;
  padding: 8px 12px; border-radius: 10px; background: #f5f8fd;
  font-size: 13px; color: var(--ink);
}
.fav-item .x { color: var(--ink3); font-size: 11px; margin-left: 2px; }

/* 点位详情 */
.poi-head { display: flex; gap: 12px; align-items: flex-start; }
.poi-ico {
  width: 46px; height: 46px; border-radius: 13px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center; font-size: 21px;
}
.poi-meta { flex: 1; min-width: 0; }
.poi-name { font-size: 18px; font-weight: 700; margin: 1px 0 5px; }
.poi-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-size: 11px; padding: 2px 8px; border-radius: 6px;
  background: #f1f5fb; color: var(--ink2);
}
.tag.blue { background: var(--primary-l); color: var(--primary-d); }
.poi-intro { font-size: 13px; color: var(--ink2); line-height: 1.7; margin: 12px 0 14px; }

.actions { display: flex; gap: 10px; margin-top: 14px; }
.btn {
  flex: 1; height: 46px; border-radius: 13px; font-size: 15px; font-weight: 600;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  transition: transform .1s ease, opacity .15s;
}
.btn:active { transform: scale(.985); }
.btn-primary { background: linear-gradient(180deg, #3d86ff, var(--primary)); color: #fff; box-shadow: 0 6px 16px rgba(47,124,246,.28); }
.btn-primary:disabled { background: #cfdced; box-shadow: none; color: #fff; }
.btn-ghost { background: #f2f6fc; color: var(--ink2); flex: 0 0 auto; padding: 0 16px; }
.btn-ghost.on { color: var(--amber); background: #fff7e8; }
.btn-line { background: #fff; border: 1px solid var(--line); color: var(--ink2); }

/* 导航设置 */
.setup-row {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.dot.s { background: var(--green); }
.dot.e { background: var(--red); }
.setup-label { font-size: 12px; color: var(--ink3); width: 34px; flex: 0 0 auto; }
.setup-val { flex: 1; font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.setup-val.muted { color: var(--ink3); font-weight: 400; }
.setup-act { font-size: 13px; color: var(--primary); font-weight: 500; padding: 4px 2px; }
.setup-act.disabled { color: #c3cddb; }

.route-opts { display: flex; flex-direction: column; gap: 8px; margin: 14px 0 4px; }
.opt {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px; border-radius: 12px; border: 1.5px solid var(--line);
  background: #fbfcfe; text-align: left; width: 100%;
}
.opt.is-on { border-color: var(--primary); background: var(--primary-l); }
.opt-ico { font-size: 17px; line-height: 1.25; }
.opt-main { flex: 1; }
.opt-t { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.opt-d { font-size: 12px; color: var(--ink2); margin-top: 3px; line-height: 1.5; }
.opt-radio {
  width: 18px; height: 18px; border-radius: 50%; border: 2px solid #cbd7e6; flex: 0 0 auto; margin-top: 2px;
}
.opt.is-on .opt-radio { border-color: var(--primary); background: radial-gradient(circle, var(--primary) 0 42%, #fff 46% 100%); }

.hint { font-size: 12px; color: var(--ink3); margin-top: 10px; line-height: 1.6; }
.hint.warn { color: #b45309; background: #fffbeb; padding: 8px 10px; border-radius: 9px; }

/* 导航中 */
.nav-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nav-stat { display: flex; align-items: baseline; gap: 14px; }
.stat b { font-size: 21px; font-weight: 700; letter-spacing: -.4px; }
.stat small { font-size: 11px; color: var(--ink3); margin-left: 3px; }
.voice-btn {
  display: flex; align-items: center; gap: 5px; height: 32px; padding: 0 11px;
  border-radius: 9px; background: #f2f6fc; color: var(--ink2); font-size: 12px;
}
.voice-btn.on { background: var(--primary-l); color: var(--primary-d); }

.current-step {
  display: flex; gap: 10px; align-items: center;
  margin: 14px 0 4px; padding: 12px 14px;
  background: linear-gradient(135deg, #2f7cf6, #4f9bff);
  border-radius: 14px; color: #fff;
  box-shadow: 0 8px 20px rgba(47, 124, 246, .28);
}
.current-step .arrow { font-size: 19px; }
.current-step .txt { font-size: 16px; font-weight: 600; line-height: 1.4; }

.steps { margin-top: 8px; }
.step {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 9px 10px; border-radius: 10px; width: 100%; text-align: left;
}
.step + .step { border-top: 1px solid #f2f6fb; }
.step-num {
  width: 20px; height: 20px; border-radius: 50%; flex: 0 0 auto;
  background: #eef3fa; color: var(--ink3);
  font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-top: 1px;
}
.step-txt { font-size: 13.5px; color: var(--ink2); line-height: 1.45; }
.step.is-on .step-num { background: var(--primary); color: #fff; }
.step.is-on .step-txt { color: var(--ink); font-weight: 600; }
.step.is-done .step-num { background: #e8f7ee; color: var(--green); }
.step.is-done .step-txt { color: var(--ink3); }

.nav-actions { display: flex; gap: 8px; margin-top: 12px; }
.nav-actions .btn { height: 42px; font-size: 14px; }

.floor-note {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: #b45309; background: #fffbeb;
  padding: 8px 10px; border-radius: 9px; margin-top: 10px; line-height: 1.5;
}

/* ---------------- 演示条 ---------------- */
.demo-bar {
  position: absolute; left: 50%; transform: translate(-50%, -12px);
  top: calc(64px + env(safe-area-inset-top, 0px));
  display: none; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(22, 38, 58, .88); color: #fff; font-size: 12px;
  z-index: 40; backdrop-filter: blur(6px);
  white-space: nowrap;
}
.demo-bar.show { display: flex; animation: pop .2s ease; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; animation: pulse 1.2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.7); } }

/* ---------------- toast ---------------- */
.toast {
  position: absolute; left: 50%; top: 30%; transform: translate(-50%, -50%) scale(.96);
  background: rgba(22, 38, 58, .9); color: #fff;
  padding: 10px 18px; border-radius: 12px; font-size: 13px;
  max-width: 80vw; text-align: center; line-height: 1.5;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
  z-index: 60;
}
.toast.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ---------------- loading ---------------- */
.loading {
  position: absolute; inset: 0; z-index: 80;
  background: rgba(234, 241, 249, .92);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  transition: opacity .3s;
}
.loading.hide { opacity: 0; pointer-events: none; }
.loading-card {
  width: 240px; text-align: center;
  background: #fff; border-radius: 18px; padding: 22px 20px;
  box-shadow: var(--shadow);
}
.model-ico { font-size: 30px; margin-bottom: 8px; }
.loading-title { font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.bar { height: 5px; border-radius: 3px; background: #e9f0f9; overflow: hidden; }
.bar i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, #4f9bff, #2f7cf6);
  border-radius: 3px; transition: width .18s ease;
}
.loading-pct { font-size: 12px; color: var(--ink3); margin-top: 9px; }
.loading-tip { font-size: 11px; color: #a9b7c8; margin-top: 10px; }

/* ---------------- 帮助弹窗 ---------------- */
.modal {
  position: absolute; inset: 0; z-index: 90;
  background: rgba(16, 30, 48, .42);
  display: none; align-items: center; justify-content: center;
  padding: 20px;
}
.modal.show { display: flex; }
.modal-card {
  width: 100%; max-width: 460px; max-height: 78vh; overflow-y: auto;
  background: #fff; border-radius: 18px; padding: 18px 20px 22px;
  box-shadow: 0 20px 60px rgba(10, 25, 45, .3);
  animation: pop .2s ease;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.modal-head h3 { margin: 0; font-size: 17px; }
.modal-head .icon-btn { width: 34px; height: 34px; box-shadow: none; background: #f3f7fc; border-radius: 9px; }
.modal-body h4 { font-size: 13px; margin: 16px 0 6px; color: var(--ink); }
.modal-body ol { margin: 0; padding-left: 18px; color: var(--ink2); font-size: 13px; line-height: 1.85; }
.modal-body p { font-size: 13px; line-height: 1.75; color: var(--ink2); margin: 6px 0 0; }
.modal-body .muted { color: var(--ink3); font-size: 12.5px; }
.route-help { display: flex; flex-direction: column; gap: 8px; }
.route-help div { font-size: 12.5px; line-height: 1.6; color: var(--ink2); background: #f6f9fd; border-radius: 10px; padding: 9px 11px; }
.route-help b { display: block; color: var(--ink); font-size: 13px; margin-bottom: 2px; }

/* 导航中隐藏搜索与快捷 */
body.navigating .chips { opacity: 0; transform: translateY(-8px); pointer-events: none; }
body.navigating .search-panel { display: none; }