/*
 * 尺寸一律用 rem：展場直立大螢幕只要調 html 的 font-size，整頁等比例放大。
 */
:root {
  --navy: #1d3a6b;
  --navy-dark: #142b52;
  --navy-soft: #e8eef8;
  --ink: #1f2933;
  --muted: #5f6b7a;
  --line: #d9e0ea;
  --paper: #ffffff;
  --bubble-bot: #f3f6fa;
  --bubble-user: #1d3a6b;
  --accent: #0f7b6c;
  --accent-soft: #e3f4f1;
  --radius: .875rem;
  --shadow: 0 1px 2px rgba(16, 36, 70, .06), 0 4px 16px rgba(16, 36, 70, .08);
  --wall: #eef2f6;   /* logo 牆中段的顏色，圖片下緣淡出成這個色 */
}

* { box-sizing: border-box; }

html {
  height: 100%;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  /* logo 牆照片寬度撐滿、貼齊上緣（圖高約 65.7vw），下半段暗角淡出成牆色 */
  background:
    linear-gradient(to bottom, rgba(238, 242, 246, 0) 0, rgba(238, 242, 246, 0) 38vw, var(--wall) 62vw),
    url(../bg.jpg) center top / 100% auto no-repeat,
    var(--wall);
  touch-action: manipulation;
}

body.is-locked { overflow: hidden; }

img { max-width: 100%; }
a { color: var(--navy); }
button { font: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }

/* ---------- 版面 ---------- */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-width: 57.5rem;
  margin: 0 auto;
}

/* 上方留白讓背景的經發局 logo 露出來（logo 在圖上 0～10.4vw） */
.app-header {
  flex: none;
  padding: calc(11.5vw + .25rem) 1.25rem .875rem;
  text-align: center;
}

.app-header__title {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--navy);
}

/* 半透明白框，透出後面的 logo 牆圖紋 */
.panel {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  margin: 0 1rem 1rem;
  border-radius: 1.25rem;
  overflow: hidden;
  background: rgba(255, 255, 255, .8);
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: 0 8px 32px rgba(16, 36, 70, .12);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.chat {
  position: relative;
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 1.25rem 1rem .5rem;
  scroll-behavior: smooth;
}

/* ---------- 訊息 ---------- */
.msg {
  display: flex;
  margin-bottom: .875rem;
  animation: msg-in .2s ease-out;
}

.msg--user { justify-content: flex-end; }

.msg__bubble {
  max-width: min(42.5rem, 88%);
  padding: .625rem .875rem;
  border-radius: var(--radius);
  background: var(--bubble-bot);
  border: 1px solid var(--line);
  overflow-wrap: anywhere;
}

.msg--bot .msg__bubble { border-top-left-radius: .25rem; }

.msg--user .msg__bubble {
  background: var(--bubble-user);
  border-color: var(--bubble-user);
  color: #fff;
  border-top-right-radius: .25rem;
}

.msg--wide .msg__bubble { max-width: 100%; width: 100%; }

.msg__bubble p { margin: 0; }
.msg__bubble p + p { margin-top: .5rem; }
.msg__bubble > p + div { margin-top: .625rem; }

.msg__image {
  display: block;
  width: 100%;
  margin-top: .625rem;
  padding: 0;
  border-radius: .5rem;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}

.msg__image img { display: block; width: 100%; height: auto; }

.msg__image--qr { width: 11rem; padding: .5rem; }

.msg__hint {
  margin-top: .25rem;
  font-size: .8125rem;
  color: var(--muted);
}

@keyframes msg-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 選單與按鈕 ---------- */
.menu-group + .menu-group { margin-top: .875rem; }

.menu-group__title {
  margin: 0 0 .375rem;
  font-size: .875rem;
  font-weight: 700;
  color: var(--navy);
}

.chips {
  display: flex;
  flex-direction: column;
  gap: .375rem;
  margin-top: .625rem;
}

.chips--inline {
  flex-direction: row;
  flex-wrap: wrap;
}

.chip {
  display: block;
  width: 100%;
  padding: .5rem .75rem;
  text-align: left;
  color: var(--navy);
  background: #fff;
  border: 1px solid #c6d3e6;
  border-radius: .625rem;
  line-height: 1.5;
  transition: background-color .15s, border-color .15s;
}

.chips--inline .chip {
  width: auto;
  padding: .375rem .75rem;
  border-radius: 999px;
  font-size: .875rem;
}

.chip:hover, .chip:active { background: var(--navy-soft); border-color: var(--navy); }
.chip:focus-visible { outline: 3px solid rgba(29, 58, 107, .35); outline-offset: 2px; }

.chip--accent {
  color: var(--accent);
  border-color: #a9d8cf;
}

.chip--accent:hover, .chip--accent:active { background: var(--accent-soft); border-color: var(--accent); }

/* ---------- 機構卡片 ---------- */
.org-section + .org-section { margin-top: 1rem; }

.org-section__title {
  margin: 0 0 .5rem;
  font-size: .9375rem;
  font-weight: 700;
  color: var(--navy);
}

.org-section__count { font-weight: 400; color: var(--muted); font-size: .8125rem; }

.org-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
  gap: .625rem;
}

.org-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .375rem;
  padding: .75rem .625rem;
  text-align: center;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: .75rem;
  transition: border-color .15s, box-shadow .15s;
}

.org-card:hover, .org-card:active {
  border-color: var(--navy);
  box-shadow: var(--shadow);
}

.org-card--static,
.org-card--static:hover,
.org-card--static:active {
  border-color: var(--line);
  box-shadow: none;
  cursor: default;
}

.org-card:focus-visible { outline: 3px solid rgba(29, 58, 107, .35); outline-offset: 2px; }

.org-card__logo {
  width: 100%;
  height: 3.5rem;
  object-fit: contain;
}

.org-card__logo.is-text,
.org-head__logo.is-text {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 .25rem;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  color: var(--navy);
}

.org-card__logo.is-text { font-size: 1rem; }
.org-head__logo.is-text { font-size: .75rem; }

.org-card__name {
  /* 固定兩行高：名稱長短不同，卡片仍一樣大 */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  height: 2.8em;
  font-size: .875rem;
  font-weight: 700;
  line-height: 1.4;
}

.org-card__tag {
  font-size: .75rem;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: .0625rem .5rem;
}

.org-card__tag--blank { visibility: hidden; }

.org-card__tag--plain {
  color: var(--muted);
  background: #f0f2f5;
}

/* 機構介紹抬頭 */
.org-head {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding-bottom: .625rem;
  margin-bottom: .625rem;
  border-bottom: 1px solid var(--line);
}

.org-head__logo {
  flex: none;
  width: 5.5rem;
  height: 3rem;
  object-fit: contain;
  background: #fff;
  border-radius: .375rem;
}

.org-head__name { margin: 0; font-weight: 700; font-size: 1.0625rem; line-height: 1.4; }
.org-head__addr { margin: 0; font-size: .875rem; color: var(--muted); }

/* ---------- 輸入列 ---------- */
.composer {
  flex: none;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, .92);
  padding: .625rem .75rem calc(.625rem + env(safe-area-inset-bottom));
}

.composer__inner {
  display: flex;
  gap: .5rem;
}

.composer__nav,
.composer__send {
  flex: none;
  padding: 0 .875rem;
  border-radius: .625rem;
  border: 1px solid var(--navy);
  white-space: nowrap;
}

.composer__nav { background: #fff; color: var(--navy); }
.composer__nav:hover, .composer__nav:active { background: var(--navy-soft); }
.composer__nav:disabled { color: #a3adbb; border-color: var(--line); background: #fff; cursor: default; }

.composer__send { background: var(--navy); color: #fff; }
.composer__send:hover, .composer__send:active { background: var(--navy-dark); }

.composer__input {
  flex: 1;
  min-width: 0;
  height: 2.75rem;
  padding: 0 .75rem;
  font: inherit;
  border: 1px solid #c6d3e6;
  border-radius: .625rem;
}

.composer__input:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(29, 58, 107, .15);
}

/* ---------- 圖片放大 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 1rem;
  background: rgba(10, 20, 40, .82);
  animation: fade-in .15s ease-out;
}

.lightbox[hidden] { display: none; }

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: .5rem;
  background: #fff;
  box-shadow: 0 10px 40px rgba(0, 0, 0, .4);
}

.lightbox__close {
  position: absolute;
  top: .75rem;
  right: .75rem;
  width: 3rem;
  height: 3rem;
  border: 0;
  border-radius: 999px;
  font-size: 2rem;
  line-height: 1;
  color: var(--navy);
  background: #fff;
  box-shadow: var(--shadow);
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.noscript {
  position: fixed;
  inset: auto 0 0;
  margin: 0;
  padding: .75rem;
  text-align: center;
  background: #fff3cd;
}

@media (prefers-reduced-motion: reduce) {
  .msg, .lightbox { animation: none; }
  .chat { scroll-behavior: auto; }
}

/* ---------- 手機 ---------- */
@media (max-width: 520px) {
  .app-header { padding: calc(11.5vw + .125rem) 1rem .625rem; }
  .app-header__title { font-size: 1.0625rem; }
  .panel { margin: 0 .5rem .5rem; border-radius: 1rem; }
  .chat { padding: .875rem .75rem .375rem; }
  .org-grid { grid-template-columns: repeat(2, 1fr); }
  .composer__inner { gap: .375rem; }
  .composer__nav, .composer__send { padding: 0 .5rem; font-size: .875rem; }
}

/* ---------- 展場直立大螢幕 ----------
 * 1080×1920 時基準字級約 24px，4K 直立（2160 寬、縮放 100%）封頂 40px。
 * 版面撐滿全寬，按鈕放大到手指好點。
 */
/* 由 index.html 的 is-kiosk class 開啟：直立大螢幕，或預覽框裡的畫面 */
:root.is-kiosk { font-size: clamp(22px, 2.2vw, 40px); }
:root.is-kiosk .app { max-width: none; }
:root.is-kiosk .app-header { padding: calc(11.5vw + .5rem) 1.5rem 1.25rem; }
:root.is-kiosk .app-header__title { font-size: 1.625rem; }
:root.is-kiosk .panel { margin: 0 1.5rem 1.5rem; border-radius: 1.5rem; }
:root.is-kiosk .chat { padding: 1.5rem 1.5rem .75rem; }
:root.is-kiosk .msg { margin-bottom: 1.125rem; }
:root.is-kiosk .msg__bubble { max-width: 92%; padding: .875rem 1.125rem; }
:root.is-kiosk .menu-group__title { font-size: .9375rem; }
:root.is-kiosk .chips { gap: .5rem; }
:root.is-kiosk .chip { padding: .75rem 1rem; }
:root.is-kiosk .chips--inline .chip { padding: .5rem 1rem; font-size: .9375rem; }
:root.is-kiosk .org-grid { grid-template-columns: repeat(4, 1fr); gap: .75rem; }
:root.is-kiosk .org-card { padding: 1rem .375rem; }
:root.is-kiosk .org-card__name { font-size: .8125rem; letter-spacing: -.01em; }
:root.is-kiosk .org-card__logo { height: 4rem; }
:root.is-kiosk .composer { padding: .875rem 1.5rem calc(.875rem + env(safe-area-inset-bottom)); }
:root.is-kiosk .composer__inner { gap: .625rem; }
:root.is-kiosk .composer__input { height: 3.25rem; }
:root.is-kiosk .composer__nav, :root.is-kiosk .composer__send { padding: 0 1.25rem; }
:root.is-kiosk .lightbox { padding: 5rem 1.5rem; }
:root.is-kiosk .lightbox__close { top: 1rem; right: 1rem; width: 3.5rem; height: 3.5rem; font-size: 2.25rem; }


/* ---------- 電腦預覽框（js/preview.js） ---------- */
.is-preview body {
  overflow: hidden;
  background: #101a2c;
}

.is-preview .app,
.is-preview .lightbox { display: none; }

/* 模糊、壓暗的 logo 牆當背景 */
.is-preview body::before {
  content: "";
  position: fixed;
  inset: -40px;
  background:
    linear-gradient(160deg, rgba(20, 43, 82, .78), rgba(10, 20, 40, .9)),
    url(../bg.jpg) center / cover no-repeat;
  filter: blur(20px);
  z-index: -1;
}

.preview {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.preview__device {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.preview__bezel {
  background: linear-gradient(145deg, #2b2f36, #121418);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, .08) inset,
    0 30px 80px rgba(0, 0, 0, .55);
}

.preview__screen {
  position: relative;
  overflow: hidden;
  background: #fff;
}

.preview__screen iframe {
  position: absolute;
  top: 0;
  left: 0;
  border: 0;
  transform-origin: 0 0;
}

/* 立架：細頸＋底座 */
.preview__stand {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: var(--stand-h, 60px);
}

.preview__stand::before {
  content: "";
  width: calc(90px * var(--stand-scale, .5));
  flex: 1;
  background: linear-gradient(90deg, #1b1e23, #3a3f47 50%, #1b1e23);
}

.preview__stand span {
  display: block;
  width: calc(600px * var(--stand-scale, .5));
  height: calc(26px * var(--stand-scale, .5));
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, #3a3f47, #16191d);
  box-shadow: 0 12px 24px rgba(0, 0, 0, .5);
}

.is-zoomed .preview__stand { display: none; }

.preview__zoom {
  position: fixed;
  top: 16px;
  right: 16px;
  padding: 8px 16px;
  font-size: 14px;
  color: #fff;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.preview__zoom:hover { background: rgba(255, 255, 255, .24); }