/* ============================================================
 * 曙光教育智能系統 MVP · 慢荒宇宙
 * 曙光之境視覺語言：星海 × 金箔 × 青紫
 * ============================================================ */

:root {
  --gold: #e8c26a;
  --gold-2: #ffd77a;
  --cyan: #5fd4d0;
  --violet: #8a7cff;

  --bg-deep: #04050c;
  --bg-panel: linear-gradient(158deg, rgba(32,38,74,.72), rgba(13,16,34,.88));
  --bg-panel-solid: #141a38;
  --bg-card: linear-gradient(158deg, rgba(32,38,74,.72), rgba(13,16,34,.88));
  --line: rgba(232,194,106,.22);
  --line-soft: rgba(160,180,255,.12);
  --text: #e8ecff;
  --text-dim: #98a1c9;
  --text-faint: #5c6488;
  --accent: #5fd4d0;
  --accent-2: #8a7cff;
  --accent-3: #7fd4a0;
  --warn: #e8c26a;
  --danger: #ff5b6e;
  --glow: 0 0 18px rgba(232,194,106,.35);

  --font-serif: "Noto Serif TC", "Songti TC", serif;
  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

body {
  background: radial-gradient(circle at 50% -10%, #161a3a 0%, #080a18 45%, #04050c 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(232,194,106,.35); color: #fff; }

#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

#app {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

/* ---------- 頂部 ---------- */
header.hero {
  text-align: center;
  padding: 56px 16px 30px;
}

.hero .kicker {
  color: var(--cyan);
  letter-spacing: .42em;
  font-size: 12.5px;
  margin-bottom: 16px;
  text-indent: .42em;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 600;
  letter-spacing: .06em;
  margin: 0 0 12px;
  line-height: 1.35;
  background: linear-gradient(100deg, #fff 10%, var(--gold-2) 55%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgba(232,194,106,.28));
}

.hero .manifesto {
  color: var(--text-dim);
  font-size: 14.5px;
  letter-spacing: .14em;
}

.hero .manifesto strong {
  color: var(--gold-2);
  font-weight: 600;
}

/* ---------- 導覽 ---------- */
nav.tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 20px 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 8px;
  background: linear-gradient(180deg, rgba(6,8,20,.94), rgba(6,8,20,.55));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(232,194,106,.14);
}

nav.tabs button {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(160,180,255,.18);
  color: var(--text-dim);
  padding: 9px 22px;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  transition: all .28s cubic-bezier(.2,.8,.3,1);
  font-family: inherit;
  letter-spacing: .1em;
}

nav.tabs button:hover {
  border-color: rgba(232,194,106,.55);
  color: var(--gold-2);
  transform: translateY(-1px);
}

nav.tabs button.active {
  color: #0b0d1c;
  font-weight: 700;
  background: linear-gradient(100deg, var(--gold-2), var(--gold));
  border-color: transparent;
  box-shadow: 0 0 26px rgba(232,194,106,.4);
}

/* ---------- 通用面板 ---------- */
.panel {
  background: var(--bg-panel);
  border: 1px solid rgba(160,180,255,.15);
  border-radius: 20px;
  padding: 30px 28px;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 60px rgba(0,0,0,.4);
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 55% 40% at 50% -8%, rgba(232,194,106,.07), transparent 65%);
}

.panel h2 {
  font-family: var(--font-serif);
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--gold-2);
  text-shadow: 0 0 22px rgba(232,194,106,.35);
  position: relative;
}

.panel .sub {
  color: var(--text-faint);
  font-size: 13.5px;
  line-height: 1.85;
  margin-bottom: 20px;
  position: relative;
}

.panel h4 {
  position: relative;
}

.tab-page { display: none; animation: fadeUp .5s cubic-bezier(.2,.8,.3,1); }
.tab-page.active { display: block; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 按鈕 ---------- */
.btn {
  font-family: inherit;
  font-size: 14px;
  letter-spacing: .1em;
  cursor: pointer;
  padding: 13px 30px;
  border-radius: 999px;
  border: 1px solid rgba(232,194,106,.45);
  background: none;
  color: var(--gold-2);
  font-weight: 500;
  transition: all .28s cubic-bezier(.2,.8,.3,1);
}

.btn:hover:not(:disabled) {
  background: rgba(232,194,106,.1);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(232,194,106,.25);
}

.btn:disabled {
  opacity: .35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn.primary {
  border: none;
  font-weight: 700;
  color: #0b0d1c;
  background: linear-gradient(100deg, var(--gold-2), var(--gold));
  box-shadow: 0 10px 34px rgba(232,194,106,.3);
}

.btn.primary:hover:not(:disabled) {
  box-shadow: 0 16px 44px rgba(232,194,106,.45);
  background: linear-gradient(100deg, var(--gold-2), var(--gold));
}

.btn.small { padding: 8px 18px; font-size: 13px; }

/* ---------- 探究頁 ---------- */
.stage-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  position: relative;
}

.stage-chip {
  border: 1px solid rgba(160,180,255,.18);
  background: rgba(255,255,255,.02);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 8px 18px;
  cursor: pointer;
  font-size: 13.5px;
  letter-spacing: .08em;
  font-family: inherit;
  transition: all .3s;
}

.stage-chip:hover { border-color: rgba(232,194,106,.5); color: var(--gold-2); }

.stage-chip.active {
  color: #0b0d1c;
  font-weight: 700;
  background: linear-gradient(100deg, var(--gold-2), var(--gold));
  border-color: transparent;
  box-shadow: 0 0 26px rgba(232,194,106,.4);
}

.mode-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 14px 0;
  position: relative;
}

.mode-chip {
  border: 1px dashed rgba(95,212,208,.4);
  background: rgba(95,212,208,.06);
  color: var(--text-dim);
  border-radius: 12px;
  padding: 9px 16px;
  cursor: pointer;
  font-size: 13.5px;
  font-family: inherit;
  letter-spacing: .04em;
  transition: all .28s;
}

.mode-chip:hover { border-color: var(--cyan); color: var(--cyan); }

.mode-chip.active {
  border-style: solid;
  border-color: var(--cyan);
  color: #0b0d1c;
  font-weight: 700;
  background: linear-gradient(100deg, #8fe8e4, var(--cyan));
  box-shadow: 0 0 22px rgba(95,212,208,.35);
}

.dim-group { margin-bottom: 16px; position: relative; }

.dim-group h4 {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--accent-2);
  letter-spacing: .22em;
  font-weight: 500;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }

.tag-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(160,180,255,.16);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all .22s;
  user-select: none;
  background: rgba(255,255,255,.02);
}

.tag-check:hover { border-color: rgba(232,194,106,.5); color: var(--gold-2); }

.tag-check input { display: none; }

.tag-check.on {
  color: #0b0d1c;
  font-weight: 700;
  background: linear-gradient(100deg, var(--gold-2), var(--gold));
  border-color: transparent;
  box-shadow: 0 0 18px rgba(232,194,106,.4);
}

.result-meta {
  color: var(--text-faint);
  font-size: 13px;
  margin: 18px 0 14px;
  letter-spacing: .04em;
  position: relative;
}

.result-meta b { color: var(--cyan); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 18px;
  position: relative;
}

.card {
  background: var(--bg-card);
  border: 1px solid rgba(160,180,255,.15);
  border-radius: 18px;
  padding: 22px;
  padding-top: 26px;
  transition: transform .28s cubic-bezier(.2,.8,.3,1), border-color .28s, box-shadow .28s;
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 18px;
  pointer-events: none;
  background: radial-gradient(220px 120px at 80% 0%, rgba(232,194,106,.16), transparent 70%);
  opacity: 0;
  transition: opacity .3s;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(232,194,106,.6);
  box-shadow: 0 18px 46px rgba(232,194,106,.13);
}

.card:hover::after { opacity: 1; }

.card .src-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
  font-size: 12.5px;
  color: var(--text-faint);
}

.src-badge {
  background: rgba(127,212,160,.1);
  border: 1px solid rgba(127,212,160,.4);
  color: var(--accent-3);
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 11.5px;
  letter-spacing: .08em;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 16.5px;
  line-height: 1.6;
  font-weight: 600;
  letter-spacing: .02em;
}

.card .summary {
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.85;
  margin-bottom: 14px;
}

.card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }

.mini-tag {
  font-size: 11.5px;
  letter-spacing: .05em;
  border: 1px solid rgba(160,180,255,.18);
  border-radius: 6px;
  padding: 3px 9px;
  color: var(--text-dim);
  background: rgba(95,212,208,.05);
}

.mini-tag.hit {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(95,212,208,.12);
  font-weight: 600;
  box-shadow: 0 0 12px rgba(95,212,208,.25);
}

.match-line {
  font-size: 12.5px;
  color: var(--cyan);
  margin-bottom: 4px;
  letter-spacing: .04em;
}

.reason-line {
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-dim);
  background: rgba(138,124,255,.08);
  border-left: 3px solid var(--violet);
  padding: 12px 16px;
  border-radius: 0 12px 12px 0;
  margin: 12px 0;
}

.card .actions { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; position: relative; z-index: 1; }

.match-score {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--gold-2);
  border: 1px solid rgba(232,194,106,.45);
  border-radius: 999px;
  padding: 3px 12px;
  background: rgba(232,194,106,.08);
  z-index: 1;
}

.empty-hint {
  text-align: center;
  color: var(--text-faint);
  padding: 44px 20px;
  font-size: 14.5px;
  border: 1px dashed rgba(232,194,106,.3);
  border-radius: 16px;
  grid-column: 1 / -1;
  background: rgba(232,194,106,.03);
}

/* ---------- 島嶼頁 ---------- */
.island-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  position: relative;
}

@media (max-width: 860px) {
  .island-layout { grid-template-columns: 1fr; }
}

#islandCanvas {
  width: 100%;
  height: 340px;
  border-radius: 16px;
  border: 1px solid rgba(160,180,255,.15);
  background: radial-gradient(ellipse at 50% 60%, #101a3e 0%, #060a1e 70%);
  display: block;
  box-shadow: inset 0 0 60px rgba(0,0,0,.5);
}

.island-stats { display: flex; gap: 14px; flex-wrap: wrap; margin: 16px 0; }

.stat-box {
  background: linear-gradient(158deg, rgba(28,34,66,.7), rgba(12,15,32,.9));
  border: 1px solid rgba(160,180,255,.15);
  border-radius: 14px;
  padding: 12px 20px;
  text-align: center;
  min-width: 110px;
}

.stat-box .num {
  font-size: 26px;
  font-weight: 700;
  color: var(--gold-2);
  text-shadow: 0 0 20px rgba(232,194,106,.45);
  font-variant-numeric: tabular-nums;
}

.stat-box .lbl { font-size: 11.5px; color: var(--text-faint); letter-spacing: .14em; margin-top: 2px; }

.res-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.res-item {
  background: rgba(20,35,75,.5);
  border: 1px solid rgba(160,180,255,.14);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 13px;
  transition: border-color .25s;
}

.res-item:hover { border-color: rgba(232,194,106,.45); }

.res-item .ricon { font-size: 20px; margin-right: 6px; }
.res-item .rcount { color: var(--gold-2); font-weight: 700; float: right; font-variant-numeric: tabular-nums; }
.res-item .rdesc { color: var(--text-faint); font-size: 11.5px; display: block; margin-top: 4px; }

.action-list { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }

.island-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: linear-gradient(150deg, rgba(30,36,70,.6), rgba(13,16,34,.8));
  border: 1px solid rgba(160,180,255,.16);
  border-radius: 14px;
  padding: 14px 18px;
  transition: all .28s;
}

.island-action:hover {
  border-color: rgba(232,194,106,.6);
  transform: translateX(4px);
  box-shadow: 0 8px 28px rgba(232,194,106,.1);
}

.island-action .alabel { font-size: 14px; }
.island-action .ahint { font-size: 12px; color: var(--accent-3); letter-spacing: .04em; }

.log-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
  font-size: 13.5px;
}

.log-list::-webkit-scrollbar { width: 5px; }
.log-list::-webkit-scrollbar-thumb { background: rgba(232,194,106,.25); border-radius: 99px; }

.log-list li {
  padding: 9px 4px;
  border-bottom: 1px dashed rgba(160,180,255,.14);
  color: var(--text-dim);
}

.log-list .ltime { color: var(--text-faint); font-size: 12px; margin-right: 8px; }
.log-list .lgain { color: var(--gold-2); font-weight: 700; }

.cap-bar { margin-top: 12px; }
.cap-track {
  height: 8px;
  background: rgba(255,255,255,.07);
  border-radius: 999px;
  overflow: hidden;
}
.cap-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  border-radius: 999px;
  box-shadow: 0 0 14px rgba(232,194,106,.5);
  transition: width .4s ease;
}
.cap-label { font-size: 12.5px; color: var(--text-faint); margin-top: 8px; letter-spacing: .04em; }

/* ---------- 雷達頁 ---------- */
.radar-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 26px;
  position: relative;
}

@media (max-width: 860px) {
  .radar-layout { grid-template-columns: 1fr; }
}

#radarCanvas {
  width: 100%;
  height: 420px;
  border-radius: 16px;
  border: 1px solid rgba(160,180,255,.15);
  background: radial-gradient(ellipse at 50% 50%, #101a3e 0%, #060a1e 75%);
  display: block;
  cursor: pointer;
  box-shadow: inset 0 0 60px rgba(0,0,0,.5);
}

.pioneer-list { display: flex; flex-direction: column; gap: 10px; }

.pioneer-item {
  border: 1px solid rgba(160,180,255,.14);
  border-radius: 14px;
  padding: 14px 18px;
  cursor: pointer;
  transition: all .25s;
  background: linear-gradient(150deg, rgba(30,36,70,.5), rgba(13,16,34,.75));
}

.pioneer-item:hover {
  border-color: rgba(232,194,106,.55);
  transform: translateX(4px);
}

.pioneer-item.selected {
  border-color: var(--gold);
  box-shadow: 0 0 26px rgba(232,194,106,.2);
  background: linear-gradient(150deg, rgba(72,62,30,.55), rgba(24,22,40,.85));
}

.pioneer-item .pname { font-weight: 600; font-size: 15px; letter-spacing: .03em; }
.pioneer-item .ptitle { font-size: 12.5px; color: var(--text-faint); }
.pioneer-item .pdist { font-size: 13px; color: var(--cyan); margin-top: 6px; font-variant-numeric: tabular-nums; }

.radar-info {
  margin-top: 16px;
  background: rgba(138,124,255,.07);
  border: 1px solid rgba(138,124,255,.3);
  border-left: 3px solid var(--violet);
  border-radius: 0 14px 14px 0;
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.9;
}

.radar-info .rel { font-weight: 700; font-size: 16px; margin-bottom: 6px; letter-spacing: .06em; }
.rel-ally { color: var(--accent-3); }
.rel-complement { color: var(--cyan); }
.rel-explore { color: var(--violet); }

.privacy-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-faint);
  border-top: 1px dashed rgba(160,180,255,.16);
  padding-top: 12px;
  line-height: 1.9;
}

/* ---------- 對決頁 ---------- */
.duel-setup {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  align-items: flex-end;
  position: relative;
}

.field label {
  display: block;
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: .14em;
  margin-bottom: 8px;
}

.field select {
  background: rgba(10,13,30,.8);
  color: var(--text);
  border: 1px solid rgba(160,180,255,.22);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  min-width: 200px;
  outline: none;
  transition: border-color .25s;
}

.field select:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(232,194,106,.12); }

.duel-arena { display: none; position: relative; }
.duel-arena.show { display: block; animation: fadeUp .4s ease; }

.round-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.round-pills { display: flex; gap: 8px; }
.round-pill {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(160,180,255,.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: var(--text-faint);
  transition: all .3s;
}
.round-pill.done-correct { background: rgba(127,212,160,.25); border-color: var(--accent-3); color: #fff; }
.round-pill.done-wrong { background: rgba(255,91,110,.25); border-color: var(--danger); color: #fff; }
.round-pill.current {
  border-color: var(--gold);
  color: var(--gold-2);
  box-shadow: 0 0 20px rgba(232,194,106,.4);
  font-weight: 700;
}

.question-box {
  background: linear-gradient(158deg, rgba(28,34,66,.7), rgba(12,15,32,.9));
  border: 1px solid rgba(160,180,255,.15);
  border-radius: 18px;
  padding: 26px;
}

.question-box h3 {
  font-family: var(--font-serif);
  margin: 0 0 18px;
  font-size: 18px;
  line-height: 1.7;
  font-weight: 600;
  letter-spacing: .03em;
}

.opt-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  text-align: left;
  background: linear-gradient(150deg, rgba(30,36,70,.6), rgba(13,16,34,.8));
  border: 1px solid rgba(160,180,255,.16);
  color: var(--text);
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 12px;
  cursor: pointer;
  font-size: 14.5px;
  line-height: 1.7;
  font-family: inherit;
  transition: all .28s;
}

.opt-btn b {
  flex: 0 0 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(232,194,106,.5);
  color: var(--gold-2);
  font-size: 13px;
  font-weight: 700;
  transition: all .28s;
}

.opt-btn:hover:not(:disabled) {
  border-color: rgba(232,194,106,.6);
  transform: translateX(6px);
  background: linear-gradient(150deg, rgba(46,52,96,.72), rgba(18,22,44,.9));
}

.opt-btn:hover:not(:disabled) b { background: var(--gold); color: #0b0d1c; border-color: transparent; }

.opt-btn:disabled { cursor: default; }
.opt-btn.correct { border-color: var(--accent-3); background: rgba(127,212,160,.12); box-shadow: 0 0 24px rgba(127,212,160,.15); }
.opt-btn.correct b { background: var(--accent-3); color: #0b0d1c; border-color: transparent; }
.opt-btn.wrong { border-color: var(--danger); background: rgba(255,91,110,.1); }
.opt-btn.wrong b { background: var(--danger); color: #fff; border-color: transparent; }

.feedback-box {
  margin-top: 16px;
  border-radius: 14px;
  padding: 18px 22px;
  font-size: 14px;
  line-height: 1.9;
  display: none;
  border-left: 3px solid var(--violet);
  background: rgba(138,124,255,.08);
}
.feedback-box.show { display: block; animation: fadeUp .3s ease; }
.feedback-box.good { border-left-color: var(--accent-3); background: rgba(127,212,160,.08); }
.feedback-box.bad { border-left-color: var(--danger); background: rgba(255,91,110,.07); }
.feedback-box .opp-line { margin-top: 10px; color: var(--text-dim); font-size: 13px; }

.duel-result { display: none; text-align: center; position: relative; }
.duel-result.show { display: block; animation: fadeUp .4s ease; }

.duel-result .trophy { font-size: 60px; margin-bottom: 10px; filter: drop-shadow(0 0 24px rgba(232,194,106,.5)); }
.duel-result h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  margin: 0 0 8px;
  letter-spacing: .08em;
  background: linear-gradient(100deg, #fff 10%, var(--gold-2) 55%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 7px 20px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .1em;
  margin: 6px;
}
.badge.win { background: rgba(232,194,106,.12); border: 1px solid var(--gold); color: var(--gold-2); box-shadow: 0 0 20px rgba(232,194,106,.25); }
.badge.fix { background: rgba(95,212,208,.1); border: 1px solid var(--cyan); color: var(--cyan); }

.settle-table {
  margin: 20px auto;
  max-width: 440px;
  text-align: left;
  font-size: 14.5px;
}
.settle-table .row {
  display: flex; justify-content: space-between;
  padding: 12px 4px; border-bottom: 1px dashed rgba(160,180,255,.16);
}
.settle-table .pos { color: var(--accent-3); font-weight: 700; }
.settle-table .neg { color: var(--danger); font-weight: 700; }

/* ---------- 問答頁 ---------- */
.qa-box { display: flex; gap: 12px; margin-bottom: 20px; position: relative; }

.qa-box input {
  flex: 1;
  background: rgba(10,13,30,.75);
  border: 1px solid rgba(160,180,255,.2);
  border-radius: 14px;
  padding: 14px 20px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all .25s;
}

.qa-box input::placeholder { color: var(--text-faint); }
.qa-box input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(232,194,106,.12); }

.qa-answer {
  background: linear-gradient(158deg, rgba(28,34,66,.7), rgba(12,15,32,.9));
  border: 1px solid rgba(160,180,255,.15);
  border-left: 3px solid var(--gold);
  border-radius: 0 16px 16px 0;
  padding: 24px 26px;
  font-size: 14.5px;
  line-height: 1.95;
  display: none;
  position: relative;
}
.qa-answer.show { display: block; animation: fadeUp .4s ease; }

.qa-answer .pipeline {
  font-size: 12px; color: var(--text-faint);
  margin-bottom: 14px; letter-spacing: .08em;
}

.cite-card {
  border: 1px solid rgba(160,180,255,.16);
  border-radius: 12px;
  padding: 14px 18px;
  margin-top: 12px;
  background: rgba(95,212,208,.05);
  font-size: 13.5px;
  line-height: 1.8;
}
.cite-card .ctitle { font-weight: 600; color: var(--cyan); }
.cite-card .cmeta { color: var(--text-faint); font-size: 12.5px; }

.qa-empty {
  text-align: center;
  padding: 40px 20px;
  border: 1px dashed rgba(232,194,106,.3);
  border-radius: 16px;
  color: var(--text-dim);
  font-size: 15px;
  background: rgba(232,194,106,.03);
}

.suggest-tags { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }

/* ---------- Toast ---------- */
#toast {
  position: fixed;
  left: 50%;
  bottom: 38px;
  transform: translate(-50%, 20px);
  z-index: 200;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 13.5px;
  letter-spacing: .06em;
  background: rgba(20,24,48,.96);
  border: 1px solid rgba(232,194,106,.4);
  color: var(--gold-2);
  opacity: 0;
  pointer-events: none;
  transition: all .35s;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 40px rgba(0,0,0,.5);
  max-width: 90vw;
  text-align: center;
}

#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 加入島嶼飛行動效 */
.fly-dot {
  position: fixed;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff, var(--gold));
  box-shadow: 0 0 22px rgba(232,194,106,.8);
  z-index: 300;
  pointer-events: none;
}

@keyframes popIn {
  0% { transform: scale(.6); opacity: 0; }
  60% { transform: scale(1.06); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.card.just-added { animation: popIn .45s cubic-bezier(.2,.9,.3,1); border-color: var(--accent-3); }

footer {
  text-align: center;
  color: var(--text-faint);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 2;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid rgba(160,180,255,.1);
}

/* ---------- 響應式 ---------- */
@media (max-width: 640px) {
  .panel { padding: 22px 18px; }
  .cards { grid-template-columns: 1fr; }
  nav.tabs button { padding: 8px 16px; font-size: 13px; }
  .qa-box { flex-direction: column; }
  .hero h1 { letter-spacing: .03em; }
}