/* ============================================================
   智慧中華歷史互動系統 — 夜間文物館美學
   墨底 · 鎏金 · 朱砂印 · 宣紙米白 ｜ SEN：大字 · 大掣 · 高對比
   ============================================================ */
:root {
  --ink: #14110c;
  --ink-2: #1d1812;
  --ink-3: #262017;
  --gold: #c9a45c;
  --gold-hi: #e9c87e;
  --cinnabar: #b5432e;
  --cinnabar-hi: #d05a42;
  --paper: #f2e9d8;
  --paper-dim: #bdb098;
  --bronze: #6d8a74;
  --line: rgba(201, 164, 92, .28);
  --font-display: "Noto Serif TC", serif;
  --font-body: "Noto Sans TC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(1200px 700px at 50% -10%, rgba(201, 164, 92, .10), transparent 60%),
    radial-gradient(900px 600px at 85% 110%, rgba(181, 67, 46, .07), transparent 55%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.75;
  min-height: 100vh;
}
::selection { background: var(--cinnabar); color: #fff; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--gold-hi); outline-offset: 2px; border-radius: 4px; }

/* ---------- 頂欄 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  padding: 14px 28px;
  background: linear-gradient(180deg, rgba(20, 17, 12, .96), rgba(20, 17, 12, .88));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand-seal {
  width: 40px; height: 40px; flex: none;
  background: var(--cinnabar); color: #fff;
  font-family: var(--font-display); font-weight: 900; font-size: 22px;
  display: grid; place-items: center; border-radius: 6px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .15) inset, 0 4px 14px rgba(181, 67, 46, .35);
}
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: .06em; }
.brand-sub { font-size: 12px; color: var(--paper-dim); letter-spacing: .18em; }
.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav-link {
  padding: 10px 16px; min-height: 44px; display: grid; place-items: center;
  border-radius: 8px; font-size: 16px; color: var(--paper-dim);
  border: 1px solid transparent; transition: .2s;
}
.nav-link:hover { color: var(--gold-hi); }
.nav-link.active { color: var(--gold-hi); border-color: var(--line); background: rgba(201, 164, 92, .08); }
.fs-btn {
  min-height: 44px; padding: 8px 14px; border-radius: 8px;
  background: none; border: 1px solid var(--line); color: var(--paper-dim); font-size: 15px;
}
.fs-btn:hover { color: var(--gold-hi); border-color: var(--gold); }

#app { max-width: 1280px; margin: 0 auto; padding: 34px 28px 90px; }

/* ---------- 進場動畫 ---------- */
.reveal { opacity: 0; transform: translateY(18px); animation: rise .7s cubic-bezier(.2, .7, .2, 1) forwards; animation-delay: var(--d, 0ms); }
@keyframes rise { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; opacity: 1; transform: none; } }

/* ---------- 首頁 ---------- */
.hero { text-align: center; padding: 46px 0 40px; position: relative; }
.hero-seal {
  position: absolute; top: 6px; right: 4%;
  width: 74px; height: 74px; border-radius: 10px;
  background: var(--cinnabar); color: #fff;
  font-family: var(--font-display); font-weight: 900; font-size: 44px;
  display: grid; place-items: center; transform: rotate(6deg);
  box-shadow: 0 10px 30px rgba(181, 67, 46, .35);
  opacity: .92;
}
.hero-title {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(34px, 5.2vw, 62px); letter-spacing: .08em;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold) 70%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 60px rgba(201, 164, 92, .18);
}
.hero-sub { margin-top: 16px; font-size: 20px; color: var(--paper-dim); }
.hero-badges { margin-top: 22px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.badge {
  padding: 8px 16px; border-radius: 999px; font-size: 15px;
  border: 1px solid var(--line); color: var(--gold);
  background: rgba(201, 164, 92, .06); letter-spacing: .04em;
}

.card-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 22px; margin-top: 18px;
}
.person-card {
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
  display: flex; flex-direction: column;
}
.person-card:hover { transform: translateY(-8px); border-color: var(--gold); box-shadow: 0 18px 44px rgba(0, 0, 0, .5), 0 0 0 1px rgba(201, 164, 92, .25); }
.portrait-frame { aspect-ratio: 3/4; overflow: hidden; border-bottom: 1px solid var(--line); background: #0d0b08; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.person-card:hover .portrait-frame img { transform: scale(1.05); }
.person-card-body { padding: 16px 18px 18px; }
.person-field { font-size: 14px; color: var(--bronze); letter-spacing: .06em; }
.person-name { font-family: var(--font-display); font-weight: 900; font-size: 30px; color: var(--gold-hi); line-height: 1.3; }
.person-title { font-size: 15px; color: var(--paper); }
.person-years { font-size: 13px; color: var(--paper-dim); margin-top: 4px; }
.talk-cta { margin-top: 12px; font-size: 16px; color: var(--cinnabar-hi); font-weight: 700; }

/* 好問題牆 */
.gq-wall { margin-top: 46px; border: 1px solid var(--line); border-radius: 14px; background: rgba(201, 164, 92, .04); padding: 20px 0 22px; overflow: hidden; }
.gq-wall-head { display: flex; align-items: baseline; gap: 12px; padding: 0 24px 14px; flex-wrap: wrap; }
.seal-mini { width: 34px; height: 34px; border-radius: 6px; background: var(--cinnabar); color: #fff; font-family: var(--font-display); font-weight: 900; display: grid; place-items: center; align-self: center; }
.gq-wall-head h2 { font-family: var(--font-display); font-size: 24px; color: var(--gold-hi); letter-spacing: .1em; }
.gq-hint { font-size: 14px; color: var(--paper-dim); }
.gq-track { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.gq-strip { display: flex; gap: 16px; width: max-content; animation: scroll 46s linear infinite; padding: 0 16px; }
.gq-track:hover .gq-strip { animation-play-state: paused; }
@keyframes scroll { to { transform: translateX(-50%); } }
.gq { flex: none; max-width: 380px; background: var(--ink-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; font-size: 16px; }
.gq-person { color: var(--cinnabar-hi); font-weight: 700; margin-right: 6px; }
.gq-note { display: block; margin-top: 6px; font-size: 14px; color: var(--bronze); }

/* ---------- 通用視圖標題 ---------- */
.view-title { font-family: var(--font-display); font-weight: 900; font-size: clamp(28px, 4vw, 44px); color: var(--gold-hi); letter-spacing: .08em; }
.view-sub { color: var(--paper-dim); margin-top: 8px; max-width: 720px; font-size: 18px; }
.tl-intro { padding: 8px 0 26px; }

/* ---------- 朝代時間軸 ---------- */
.tl-scroller { position: relative; overflow-x: auto; padding: 30px 4px 26px; scroll-snap-type: x proximity; }
.tl-axis { position: absolute; left: 0; right: 0; top: 14px; height: 2px; background: linear-gradient(90deg, transparent, var(--gold) 8%, var(--gold) 92%, transparent); opacity: .5; }
.tl-track { display: flex; gap: 20px; width: max-content; padding: 0 8px; }
.tl-card {
  width: 300px; flex: none; scroll-snap-align: start;
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  border: 1px solid var(--line); border-radius: 14px; position: relative;
  transition: border-color .25s;
}
.tl-card::before { content: ""; position: absolute; top: -19px; left: 26px; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 12px var(--gold); }
.tl-card.open, .tl-card:hover { border-color: var(--gold); }
.tl-head { padding: 20px 22px 16px; cursor: pointer; min-height: 64px; }
.tl-name { font-family: var(--font-display); font-weight: 900; font-size: 34px; color: var(--gold-hi); line-height: 1.2; }
.tl-years { font-size: 13px; color: var(--paper-dim); margin-top: 2px; }
.tl-tag { font-size: 16px; color: var(--paper); margin-top: 8px; }
.tl-head::after { content: "展開 ▾"; display: block; margin-top: 10px; font-size: 14px; color: var(--bronze); }
.tl-card.open .tl-head::after { content: "收起 ▴"; }
.tl-detail { display: none; padding: 0 22px 20px; border-top: 1px dashed var(--line); }
.tl-card.open .tl-detail { display: block; }
.tl-detail dl div { margin-top: 12px; }
.tl-detail dt { color: var(--cinnabar-hi); font-weight: 700; font-size: 15px; letter-spacing: .12em; }
.tl-detail dd { font-size: 15.5px; color: var(--paper); }
.tl-people { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.tl-person { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px 6px 6px; font-size: 15px; background: rgba(201, 164, 92, .07); min-height: 44px; }
.tl-person img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; }
.tl-person:hover { border-color: var(--gold); color: var(--gold-hi); }
.tl-noppl { font-size: 13.5px; color: var(--paper-dim); }

/* ---------- 人物對話頁 ---------- */
.person-view { display: grid; grid-template-columns: 380px 1fr; gap: 30px; align-items: start; }
.stage { position: sticky; top: 92px; }
.stage-frame {
  position: relative; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .55);
}
.stage-portrait { width: 100%; aspect-ratio: 3/4; object-fit: cover; animation: breathe 5.5s ease-in-out infinite; }
@keyframes breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.02); } }
.stage-glow { position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .4s; box-shadow: 0 0 0 2px var(--gold) inset, 0 0 46px rgba(201, 164, 92, .45) inset; }
.stage-frame.talking .stage-glow { opacity: 1; animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 3px var(--gold-hi) inset, 0 0 70px rgba(233, 200, 126, .6) inset; } }
.stage-meta { margin-top: 16px; }
.stage-name { font-family: var(--font-display); font-weight: 900; font-size: 40px; color: var(--gold-hi); display: flex; align-items: center; gap: 12px; }
.stage-seal { width: 40px; height: 40px; border-radius: 7px; background: var(--cinnabar); color: #fff; font-size: 24px; display: grid; place-items: center; transform: rotate(5deg); }
.stage-title { color: var(--paper); font-size: 17px; }
.stage-dyn { display: inline-block; margin-top: 6px; font-size: 15px; color: var(--bronze); border-bottom: 1px dashed var(--bronze); }
.mode-row { display: flex; gap: 10px; margin-top: 18px; }
.mode-btn {
  flex: 1; min-height: 56px; font-size: 18px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--ink-2); color: var(--paper-dim);
}
.mode-btn.on { background: var(--gold); color: #221b0e; font-weight: 700; border-color: var(--gold); }

.dialog { min-width: 0; }
.bubbles {
  min-height: 250px; max-height: 46vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 14px; padding: 6px 2px 10px;
}
.bubble { max-width: 86%; padding: 14px 18px; border-radius: 14px; font-size: 19px; position: relative; }
.bubble.me { align-self: flex-end; background: var(--cinnabar); color: #fff; border-bottom-right-radius: 4px; }
.bubble.them { align-self: flex-start; background: var(--ink-2); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.bubble.them-thinking { align-self: flex-start; color: var(--paper-dim); font-size: 16px; animation: blink 1.2s infinite; }
@keyframes blink { 50% { opacity: .45; } }
.listen-btn {
  margin-top: 10px; min-height: 44px; padding: 6px 16px; border-radius: 8px;
  border: 1px solid var(--line); background: rgba(201, 164, 92, .08); color: var(--gold); font-size: 15px;
}
.listen-btn:hover { border-color: var(--gold); color: var(--gold-hi); }
.src-tag { position: absolute; top: -10px; right: 12px; font-size: 12px; padding: 2px 10px; border-radius: 999px; background: var(--ink-3); border: 1px solid var(--line); color: var(--bronze); }
.src-tag.ai { color: var(--gold); }
.src-tag.hint { color: var(--paper-dim); }

.chips-label { margin-top: 14px; font-size: 16px; color: var(--paper-dim); }
.chips { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; margin-top: 10px; }
.chip {
  min-height: 64px; padding: 10px 16px; text-align: left;
  font-size: 17.5px; line-height: 1.45; color: var(--paper);
  background: linear-gradient(180deg, var(--ink-2), var(--ink-3));
  border: 1px solid var(--line); border-radius: 12px; transition: .2s;
}
.chip:hover { border-color: var(--gold); color: var(--gold-hi); transform: translateY(-2px); }

.ask-row { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
#askInput {
  flex: 1; min-width: 200px; min-height: 60px; padding: 8px 18px;
  font-size: 18px; font-family: inherit; color: var(--paper);
  background: var(--ink-2); border: 1px solid var(--line); border-radius: 12px;
}
#askInput::placeholder { color: var(--paper-dim); }
.mic-btn {
  min-height: 60px; padding: 8px 18px; border-radius: 12px; font-size: 18px;
  display: flex; align-items: center; gap: 8px;
  background: var(--ink-2); border: 1px solid var(--line); color: var(--paper);
}
.mic-btn span { font-size: 15px; }
.mic-btn.listening { background: var(--cinnabar); border-color: var(--cinnabar-hi); color: #fff; animation: pulse-red 1s infinite; }
@keyframes pulse-red { 50% { box-shadow: 0 0 0 8px rgba(181, 67, 46, .25); } }
.mic-btn:disabled { opacity: .5; cursor: not-allowed; }
.send-btn { min-height: 60px; padding: 8px 26px; border-radius: 12px; font-size: 18px; font-weight: 700; background: var(--gold); border: none; color: #221b0e; }
.send-btn:hover { background: var(--gold-hi); }
.demo-hint { margin-top: 12px; font-size: 15px; color: var(--bronze); }

/* ---------- 資訊素養館 ---------- */
.lit-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 22px; }
.lit-card { background: linear-gradient(180deg, var(--ink-2), var(--ink-3)); border: 1px solid var(--line); border-radius: 14px; padding: 24px 26px; }
.lit-status { display: inline-block; font-size: 13px; color: var(--bronze); border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; margin-bottom: 12px; }
.lit-card h3 { font-family: var(--font-display); font-size: 26px; color: var(--gold-hi); }
.lit-theme { color: var(--cinnabar-hi); font-size: 15px; margin: 4px 0 10px; }
.lit-card p { font-size: 16.5px; }
.lit-steps { margin: 14px 0 0 22px; font-size: 16px; color: var(--paper); }
.lit-steps li { margin-top: 6px; }
.lit-sen { margin-top: 16px; font-size: 14.5px; color: var(--bronze); border-top: 1px dashed var(--line); padding-top: 12px; }

/* ---------- 管理介面 ---------- */
.admin-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px; align-items: start; }
.adm-panel { background: linear-gradient(180deg, var(--ink-2), var(--ink-3)); border: 1px solid var(--line); border-radius: 14px; padding: 22px 24px; overflow-x: auto; }
.adm-panel h3 { font-family: var(--font-display); font-size: 22px; color: var(--gold-hi); margin-bottom: 12px; }
.adm-sub { font-size: 15px; color: var(--paper-dim); margin-bottom: 10px; }
.adm-table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.adm-table th, .adm-table td { padding: 10px 10px; text-align: left; border-bottom: 1px solid rgba(201, 164, 92, .14); }
.adm-table th { color: var(--paper-dim); font-weight: 500; font-size: 13.5px; }
.adm-thumb { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; }
.adm-ok { color: var(--bronze); font-size: 14px; border: 1px solid var(--line); padding: 3px 10px; border-radius: 999px; }
.adm-btn { min-height: 40px; padding: 4px 16px; border-radius: 8px; border: 1px solid var(--line); background: none; color: var(--paper-dim); }
.adm-note { margin-top: 14px; font-size: 14px; color: var(--paper-dim); }
.bar-row { margin-top: 12px; }
.bar-q { font-size: 15px; }
.bar { position: relative; height: 30px; margin-top: 5px; background: rgba(201, 164, 92, .08); border-radius: 6px; overflow: hidden; display: flex; align-items: center; }
.bar i { position: absolute; inset: 0; width: var(--w); background: linear-gradient(90deg, var(--gold), var(--gold-hi)); border-radius: 6px; }
.bar b { position: relative; margin-left: auto; padding-right: 10px; font-size: 13px; color: var(--ink); mix-blend-mode: multiply; }
.bar b { color: var(--paper); mix-blend-mode: normal; }

/* ---------- 響應式：iPad 橫直、LED 直立、電話 ---------- */
@media (max-width: 1024px) {
  .person-view { grid-template-columns: 320px 1fr; gap: 22px; }
  .admin-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .topbar { padding: 10px 14px; gap: 8px; }
  .brand-sub { display: none; }
  #app { padding: 22px 16px 70px; }
  .person-view { grid-template-columns: 1fr; }
  .stage { position: static; display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: center; }
  .stage-frame { border-radius: 12px; }
  .stage-portrait { aspect-ratio: 3/4; }
  .stage-name { font-size: 30px; }
  .mode-row { grid-column: 1 / -1; }
  .bubbles { max-height: 38vh; }
  .hero-seal { display: none; }
}
/* LED 牆直立（9:16 大屏）：加大一切 */
@media (min-width: 1000px) and (orientation: portrait), (min-height: 1500px) {
  body { font-size: 22px; }
  .person-view { grid-template-columns: 1fr; }
  .stage { position: static; text-align: center; }
  .stage-frame { max-width: 62vw; margin: 0 auto; }
  .stage-name { justify-content: center; font-size: 54px; }
  .chips { grid-template-columns: 1fr 1fr; }
  .chip { min-height: 84px; font-size: 22px; }
  #askInput, .mic-btn, .send-btn { min-height: 76px; font-size: 22px; }
  .bubble { font-size: 24px; }
}