:root {
  --ink: #0b120f;
  --ink-2: #101a15;
  --ink-3: #17231c;
  --hairline: #28372e;
  --hairline-soft: #1d2a23;
  --text-hi: #ece7d8;
  --text-lo: #8fa396;
  --text-faint: #5c7266;
  --seal: #c1382b;
  --seal-deep: #8e2a20;
  --seal-soft: rgba(193, 56, 43, 0.12);
  --jade: #2e9c6c;
  --gold: #d3a34c;
  --paper: #f3eee0;
  --paper-ink: #172019;
  --paper-lo: #5f675f;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text-hi);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(193, 56, 43, 0.07), transparent 60%),
    radial-gradient(1000px 500px at 100% 0%, rgba(46, 156, 108, 0.05), transparent 55%),
    var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

::selection { color: var(--paper); background: var(--seal); }
button, textarea { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.ledger-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0 47px,
    var(--hairline-soft) 47px 48px
  );
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 88%);
}

.ticker-wrap {
  position: relative;
  z-index: 4;
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid var(--hairline);
  background: var(--ink-2);
}

.ticker-track {
  width: max-content;
  display: inline-flex;
  align-items: center;
  gap: 2.2rem;
  padding: 8px 1.1rem;
  animation: ticker-scroll 38s linear infinite;
  will-change: transform;
}

.ticker-track:hover { animation-play-state: paused; }
.ticker-item, .ticker-message {
  color: var(--text-lo);
  font: 500 0.72rem "JetBrains Mono", monospace;
  letter-spacing: 0.03em;
}
.ticker-item b, .ticker-message b { color: var(--text-hi); font-weight: 500; }
.ticker-change { margin-left: 0.35rem; }
.ticker-change.up { color: var(--seal); }
.ticker-change.down { color: var(--jade); }
.ticker-change.flat { color: var(--gold); }

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.site-header, main, footer {
  position: relative;
  z-index: 2;
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  padding: 25px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-hi);
  font: 500 1.2rem "Fraunces", "Noto Serif TC", serif;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.wordmark b { color: var(--seal); font-weight: 600; }
.wordmark-chop {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  color: var(--paper);
  background: var(--seal);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  font: 700 0.83rem "Noto Serif TC", serif;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.system-status {
  padding: 7px 14px 7px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-lo);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--ink-2);
  font: 500 0.72rem "JetBrains Mono", monospace;
  letter-spacing: 0.04em;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--jade);
  animation: status-pulse 2.2s infinite;
}
@keyframes status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 156, 108, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(46, 156, 108, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 156, 108, 0); }
}

.member-button {
  min-height: 35px;
  padding: 5px 13px 5px 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-hi);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--ink-2);
  font-size: 0.76rem;
  font-weight: 700;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}
.member-button:hover {
  border-color: var(--gold);
  background: rgba(211, 163, 76, 0.08);
  transform: translateY(-1px);
}
.member-avatar {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: var(--paper);
  border-radius: 50%;
  background: var(--seal);
  font: 700 0.65rem "Noto Serif TC", serif;
}
.member-button.authenticated .member-avatar { background: var(--jade); }

.hero { padding: 74px 0 42px; }
.eyebrow, .console-eyebrow {
  margin: 0;
  color: var(--gold);
  font: 600 0.7rem "JetBrains Mono", monospace;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold);
  opacity: 0.6;
}

.hero-row {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  gap: 40px;
}
.hero h1 {
  max-width: 720px;
  margin: 0;
  font: 700 clamp(2.75rem, 6.4vw, 5rem) / 1.16 "Noto Serif TC", serif;
  letter-spacing: 0.01em;
}
.hero h1 em {
  position: relative;
  display: inline-block;
  color: var(--seal);
  font-style: normal;
}
.hero h1 em::after {
  content: "";
  position: absolute;
  inset: -8% -5% -3%;
  opacity: 0.55;
  border: 2px solid var(--seal);
  border-radius: 8px;
  transform: rotate(-2deg);
}
.hero-copy {
  max-width: 650px;
  margin: 28px 0 30px;
  color: var(--text-lo);
  font-size: 1rem;
  line-height: 1.95;
}
.hero-copy strong { color: var(--text-hi); font-weight: 500; }
.capability-strip { display: flex; flex-wrap: wrap; gap: 10px; }
.capability-strip span {
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-lo);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--ink-2);
  font-size: 0.78rem;
}
.capability-strip i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

.research-console {
  position: relative;
  margin: 54px 0 86px;
  padding: clamp(24px, 4vw, 38px);
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: 20px;
  background: var(--ink-2);
  box-shadow: var(--shadow);
}
.research-console::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(211, 163, 76, 0.48), transparent);
}
.console-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}
.console-eyebrow { color: var(--text-faint); }
.console-heading h2 {
  margin: 7px 0 0;
  font: 700 1.55rem "Noto Serif TC", serif;
}
.live-badge {
  padding: 5px 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--seal);
  border: 1px solid rgba(193, 56, 43, 0.4);
  border-radius: 999px;
  background: var(--seal-soft);
  font: 600 0.66rem "JetBrains Mono", monospace;
  letter-spacing: 0.1em;
}
.live-badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--seal);
  animation: seal-pulse 1.6s infinite;
}
@keyframes seal-pulse {
  0% { box-shadow: 0 0 0 0 rgba(193, 56, 43, 0.5); }
  70% { box-shadow: 0 0 0 6px rgba(193, 56, 43, 0); }
  100% { box-shadow: 0 0 0 0 rgba(193, 56, 43, 0); }
}

.research-form {
  padding: 18px 20px 14px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--ink);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.research-form:focus-within {
  border-color: var(--seal);
  box-shadow: 0 0 0 3px var(--seal-soft);
}
.research-form textarea {
  width: 100%;
  min-height: 72px;
  max-height: 220px;
  display: block;
  resize: none;
  color: var(--text-hi);
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 1rem;
  line-height: 1.7;
}
.research-form textarea::placeholder { color: var(--text-faint); }
.form-footer {
  margin-top: 10px;
  padding-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px dashed var(--hairline);
}
#character-count {
  color: var(--text-faint);
  font: 500 0.72rem "JetBrains Mono", monospace;
}
#submit-button, #retry-button {
  padding: 11px 22px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: var(--paper);
  border: 0;
  border-radius: 999px;
  background: var(--seal);
  box-shadow: 0 8px 20px -8px rgba(193, 56, 43, 0.65);
  font-size: 0.88rem;
  font-weight: 700;
  transition: transform 120ms ease, background 160ms ease;
}
#submit-button:hover, #retry-button:hover { background: var(--seal-deep); }
#submit-button:active, #retry-button:active { transform: scale(0.95) rotate(-1deg); }
#submit-button:disabled { cursor: wait; opacity: 0.52; transform: none; }

.suggestion-panel { margin-top: 27px; }
.suggestion-label {
  margin: 0 0 13px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-faint);
  font: 500 0.7rem "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.suggestion-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--hairline);
}
.suggestion-groups { display: grid; gap: 11px; }
.suggestion-row { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; }
.group-label {
  width: 2.8rem;
  color: var(--text-faint);
  font: 500 0.7rem "JetBrains Mono", monospace;
}
.suggestion-row button {
  padding: 8px 13px;
  color: var(--text-lo);
  border: 1px solid var(--hairline);
  border-radius: 9px;
  background: var(--ink-3);
  font: 500 0.76rem "JetBrains Mono", monospace;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease, transform 150ms ease;
}
.suggestion-row button:hover {
  color: var(--text-hi);
  border-color: var(--gold);
  background: rgba(211, 163, 76, 0.08);
  transform: translateY(-1px);
}
.revenue-row button { color: var(--gold); }
.suggestion-row button:disabled { cursor: wait; opacity: 0.42; transform: none; }

.preflight-ledger {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.ledger-card, .evidence-card {
  min-width: 0;
  padding: 20px 22px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--ink);
}
.ledger-head, .card-title-row {
  padding-bottom: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px dashed var(--hairline-soft);
}
.ledger-head h3, .card-title-row h3 {
  margin: 0;
  font: 700 0.96rem "Noto Serif TC", serif;
}
.ledger-head span, .card-title-row span {
  color: var(--text-faint);
  font: 500 0.68rem "JetBrains Mono", monospace;
  text-transform: uppercase;
}
.ledger-empty {
  padding: 15px 4px 2px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-faint);
}
.ledger-empty p { margin: 0; font-size: 0.78rem; line-height: 1.6; }
.mini-chop {
  flex: none;
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  color: var(--text-faint);
  border: 1.5px solid var(--text-faint);
  border-radius: 6px;
  font: 700 0.62rem "Noto Serif TC", serif;
  opacity: 0.72;
}

.loading-panel, .error-panel {
  margin: 24px 0 86px;
  padding: 34px;
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: var(--ink-2);
  box-shadow: var(--shadow);
}
.loading-panel { display: flex; align-items: center; gap: 30px; }
.loader-visual { height: 50px; min-width: 68px; display: flex; align-items: flex-end; gap: 5px; }
.loader-visual span { width: 11px; background: var(--seal); animation: loader-pulse 1.1s ease-in-out infinite; }
.loader-visual span:nth-child(1) { height: 28%; }
.loader-visual span:nth-child(2) { height: 72%; animation-delay: 100ms; }
.loader-visual span:nth-child(3) { height: 45%; animation-delay: 200ms; }
.loader-visual span:nth-child(4) { height: 100%; animation-delay: 300ms; background: var(--gold); }
@keyframes loader-pulse { 0%, 100% { transform: scaleY(0.55); opacity: 0.45; } 50% { transform: scaleY(1); opacity: 1; } }
.loading-panel h2, .error-panel h2 {
  margin: 8px 0;
  font: 700 1.65rem "Noto Serif TC", serif;
}
.loading-panel p:last-child, .error-panel > p:last-of-type { margin: 0; color: var(--text-lo); }
.error-panel { border-color: rgba(193, 56, 43, 0.55); }
.error-panel #retry-button { margin-top: 21px; }

.results { padding: 48px 0 90px; border-top: 1px solid var(--hairline); }
.results-heading {
  margin-bottom: 25px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}
.results-heading .eyebrow { margin-bottom: 8px; }
.results-heading h2 { margin: 0; font: 700 2.15rem "Noto Serif TC", serif; }
.model-badge {
  padding: 7px 10px;
  color: var(--text-lo);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--ink-2);
  font: 500 0.65rem "JetBrains Mono", monospace;
}
.data-dashboard { margin-bottom: 18px; display: grid; gap: 13px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 11px; }
.metric-card {
  min-height: 128px;
  padding: 17px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--ink-2);
}
.metric-card > div { display: flex; justify-content: space-between; gap: 10px; }
.metric-card span { font-size: 0.73rem; font-weight: 700; }
.metric-card small { color: var(--text-faint); font: 500 0.6rem "JetBrains Mono", monospace; }
.metric-card strong { color: var(--text-hi); font: 600 clamp(1.3rem, 2.3vw, 1.9rem) "Fraunces", "Noto Sans TC", sans-serif; }
.metric-card.primary { border-color: rgba(193, 56, 43, 0.55); background: linear-gradient(135deg, rgba(193, 56, 43, 0.2), var(--ink-2) 66%); }
.metric-card.positive strong { color: var(--seal); }
.metric-card.negative strong { color: var(--jade); }

.chart-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
.chart-card {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--ink-2);
}
.chart-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.chart-heading h3 { margin: 0; font-size: 0.9rem; }
.chart-heading p { margin: 5px 0 0; color: var(--text-faint); font-size: 0.67rem; }
.chart-heading > span { color: var(--gold); font: 600 0.57rem "JetBrains Mono", monospace; letter-spacing: 0.08em; }
.bar-chart {
  height: 224px;
  padding-top: 27px;
  display: flex;
  align-items: stretch;
  gap: clamp(5px, 1.2vw, 12px);
  overflow-x: auto;
}
.bar-column { min-width: 38px; flex: 1; display: grid; grid-template-rows: 20px 1fr 28px; text-align: center; }
.bar-value, .bar-label { color: var(--text-faint); font: 500 0.55rem "JetBrains Mono", monospace; white-space: nowrap; }
.bar-track { height: 100%; display: flex; align-items: flex-end; border-bottom: 1px solid var(--hairline); }
.bar-track i {
  width: 100%;
  min-height: 8px;
  display: block;
  border-radius: 5px 5px 1px 1px;
  background: linear-gradient(to top, var(--seal-deep), var(--seal));
}
.bar-chart.revenue .bar-track i { background: linear-gradient(to top, #8d6828, var(--gold)); }
.bar-label { align-self: end; }

.results-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.72fr);
  gap: 18px;
  align-items: start;
}
.answer-card {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 52px);
  color: var(--paper-ink);
  border-radius: 16px;
  background:
    repeating-linear-gradient(to bottom, transparent 0 39px, rgba(23, 32, 25, 0.055) 39px 40px),
    var(--paper);
  box-shadow: var(--shadow);
}
.document-mark {
  position: absolute;
  top: 24px;
  right: 24px;
  padding: 7px;
  color: rgba(193, 56, 43, 0.34);
  border: 2px solid rgba(193, 56, 43, 0.28);
  border-radius: 7px;
  font: 700 0.72rem "Noto Serif TC", serif;
  letter-spacing: 0.12em;
  transform: rotate(-7deg);
}
.answer-content { color: #3f4840; font-size: 0.96rem; line-height: 1.9; }
.answer-content h2, .answer-content h3 { color: var(--paper-ink); font-family: "Noto Serif TC", serif; font-weight: 700; }
.answer-content h2 { margin: 0 0 18px; font-size: 1.62rem; }
.answer-content h3 { margin: 31px 0 10px; font-size: 1.3rem; }
.answer-content h3:first-child { margin-top: 0; padding-right: 62px; }
.answer-content p { margin: 0 0 16px; }
.answer-content strong { color: var(--paper-ink); }
.answer-content em { color: var(--seal); }
.answer-content code { padding: 2px 5px; border-radius: 4px; background: rgba(23, 32, 25, 0.08); font: 0.85em "JetBrains Mono", monospace; }
.answer-content ul, .answer-content ol { margin: 8px 0 22px; padding-left: 1.45rem; }
.answer-content li { margin: 8px 0; padding-left: 4px; }
.answer-content li::marker { color: var(--seal); font-weight: 700; }
.answer-content hr { margin: 28px 0; border: 0; border-top: 1px solid rgba(23, 32, 25, 0.18); }
.disclaimer {
  margin: 32px 0 0;
  padding-top: 18px;
  color: var(--paper-lo);
  border-top: 1px solid rgba(23, 32, 25, 0.18);
  font-size: 0.72rem;
  line-height: 1.6;
}
.evidence-column { display: grid; gap: 18px; }
.evidence-card { box-shadow: var(--shadow); }
.tool-traces { margin: 4px 0 0; padding: 0; list-style: none; }
.tool-traces li { position: relative; padding: 16px 0 16px 27px; border-bottom: 1px dashed var(--hairline-soft); }
.tool-traces li:last-child { padding-bottom: 2px; border-bottom: 0; }
.tool-traces li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 21px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--jade);
  box-shadow: 0 0 0 4px rgba(46, 156, 108, 0.12);
  transform: rotate(-6deg);
}
.tool-traces li.error::before {
  background: var(--seal);
  box-shadow: 0 0 0 4px rgba(193, 56, 43, 0.12);
}
.trace-name { display: block; color: var(--text-hi); font: 600 0.71rem "JetBrains Mono", monospace; }
.trace-detail { display: block; margin-top: 5px; color: var(--text-faint); font-size: 0.69rem; line-height: 1.45; overflow-wrap: anywhere; }
.citations { display: grid; gap: 9px; padding-top: 13px; }
.citation-link {
  min-width: 0;
  display: block;
  padding: 11px 12px;
  color: var(--text-hi);
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--ink-3);
  text-decoration: none;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
}
.citation-link:hover { border-color: var(--seal); background: var(--seal-soft); transform: translateX(3px); }
.citation-link strong { display: flex; justify-content: space-between; gap: 12px; font-size: 0.73rem; line-height: 1.5; }
.citation-link strong span { flex: 0 0 auto; color: var(--seal); }
.empty-state { margin: 14px 0 0; color: var(--text-faint); font-size: 0.75rem; line-height: 1.6; }

.member-dialog {
  width: min(520px, calc(100% - 28px));
  max-height: min(760px, calc(100vh - 32px));
  padding: 0;
  overflow: auto;
  color: var(--text-hi);
  border: 1px solid var(--hairline);
  border-radius: 19px;
  background: var(--ink-2);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.62);
}
.member-dialog::backdrop {
  background: rgba(4, 9, 7, 0.78);
  backdrop-filter: blur(7px);
}
.member-dialog[open] { animation: dialog-enter 180ms ease-out; }
@keyframes dialog-enter {
  from { opacity: 0; transform: translateY(12px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.dialog-shell { padding: clamp(23px, 5vw, 34px); }
.dialog-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.dialog-topline h2 {
  margin: 7px 0 0;
  font: 700 1.65rem "Noto Serif TC", serif;
}
.dialog-close {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--text-lo);
  border: 1px solid var(--hairline);
  border-radius: 50%;
  background: var(--ink);
  font: 400 1.25rem/1 sans-serif;
}
.dialog-close:hover { color: var(--paper); border-color: var(--seal); }
.auth-reason {
  margin: 20px 0 0;
  padding: 11px 13px;
  color: var(--gold);
  border: 1px solid rgba(211, 163, 76, 0.24);
  border-radius: 9px;
  background: rgba(211, 163, 76, 0.06);
  font-size: 0.78rem;
}
.auth-tabs {
  margin-top: 25px;
  padding: 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--ink);
}
.auth-tabs button {
  padding: 9px 12px;
  color: var(--text-faint);
  border: 0;
  border-radius: 7px;
  background: transparent;
  font-size: 0.78rem;
  font-weight: 700;
}
.auth-tabs button.active { color: var(--text-hi); background: var(--ink-3); }
.auth-form { margin-top: 21px; display: grid; gap: 15px; }
.demo-access {
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid rgba(46, 156, 108, 0.34);
  border-radius: 11px;
  background: rgba(46, 156, 108, 0.07);
}
.demo-access > div { display: grid; gap: 4px; }
.demo-access > div span { color: var(--jade); font: 600 0.58rem "JetBrains Mono", monospace; letter-spacing: 0.08em; }
.demo-access > div strong { color: var(--text-hi); font-size: 0.78rem; }
.demo-access button {
  flex: none;
  padding: 9px 12px;
  color: var(--paper);
  border: 0;
  border-radius: 8px;
  background: var(--jade);
  font-size: 0.72rem;
  font-weight: 700;
}
.demo-access button:hover { background: #257f59; }
.demo-access button:disabled { cursor: wait; opacity: 0.55; }
.demo-message { min-height: 0 !important; margin: -7px 2px 0 !important; }
.demo-message:empty { display: none; }
.auth-divider { display: flex; align-items: center; gap: 11px; color: var(--text-faint); font-size: 0.67rem; }
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; flex: 1; background: var(--hairline); }
.auth-form label { display: grid; gap: 7px; }
.auth-form label > span {
  color: var(--text-lo);
  font-size: 0.74rem;
  font-weight: 600;
}
.auth-form input {
  width: 100%;
  padding: 12px 13px;
  color: var(--text-hi);
  border: 1px solid var(--hairline);
  border-radius: 9px;
  outline: none;
  background: var(--ink);
  font: 500 0.84rem "JetBrains Mono", "Noto Sans TC", monospace;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
.auth-form input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(211, 163, 76, 0.08);
}
.auth-form input::placeholder { color: var(--text-faint); }
.form-message {
  min-height: 1.2em;
  margin: -3px 0 0;
  color: var(--seal);
  font-size: 0.75rem;
}
.form-message.success { color: var(--jade); }
.auth-submit {
  padding: 12px 17px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--paper);
  border: 0;
  border-radius: 9px;
  background: var(--seal);
  font-size: 0.82rem;
  font-weight: 700;
}
.auth-submit:hover { background: var(--seal-deep); }
.auth-submit:disabled { cursor: wait; opacity: 0.55; }
.security-note {
  margin: 19px 0 0;
  color: var(--text-faint);
  font: 500 0.62rem/1.6 "JetBrains Mono", monospace;
}
.security-note::before { content: "LOCK · "; color: var(--jade); }
.profile-card {
  margin-top: 25px;
  padding: 17px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  border: 1px solid var(--hairline);
  border-radius: 13px;
  background: var(--ink);
}
.profile-avatar {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  color: var(--paper);
  border-radius: 11px;
  background: var(--seal);
  font: 700 1rem "Noto Serif TC", serif;
}
.profile-card > div { min-width: 0; display: grid; gap: 4px; }
.profile-card strong, .profile-card > div span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-card strong { font-size: 0.92rem; }
.profile-card > div span { color: var(--text-faint); font-size: 0.72rem; }
.verified-member {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--jade);
  font: 600 0.56rem "JetBrains Mono", monospace;
  letter-spacing: 0.04em;
}
.verified-member i { width: 6px; height: 6px; border-radius: 50%; background: var(--jade); }
.watchlist-section {
  margin-top: 18px;
  padding: 19px;
  border: 1px solid var(--hairline);
  border-radius: 13px;
  background: var(--ink);
}
.member-section-head {
  padding-bottom: 13px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px dashed var(--hairline);
}
.member-section-head h3 { margin: 5px 0 0; font: 700 1rem "Noto Serif TC", serif; }
.member-section-head > span { color: var(--text-faint); font: 500 0.62rem "JetBrains Mono", monospace; }
.member-watchlist { padding-top: 13px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.watchlist-item {
  padding: 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--hairline-soft);
  border-radius: 8px;
  background: var(--ink-3);
}
.watchlist-item strong { font: 600 0.82rem "JetBrains Mono", monospace; }
.watchlist-item span { color: var(--gold); font: 600 0.56rem "JetBrains Mono", monospace; text-transform: uppercase; }
.watchlist-state { grid-column: 1 / -1; margin: 4px 0; color: var(--text-faint); font-size: 0.73rem; line-height: 1.6; }
.member-footer {
  margin-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.member-footer p { margin: 0; color: var(--text-faint); font-size: 0.66rem; }
#logout-button {
  padding: 8px 14px;
  color: var(--text-lo);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  background: transparent;
  font-size: 0.72rem;
}
#logout-button:hover { color: var(--paper); border-color: var(--seal); }

footer {
  padding: 26px 0 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--text-faint);
  border-top: 1px solid var(--hairline-soft);
  font: 500 0.68rem "JetBrains Mono", monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
footer p { margin: 0; }
.footer-note { display: flex; align-items: center; gap: 8px; }
.footer-note::before { content: "※"; color: var(--gold); }

@media (max-width: 820px) {
  .site-header, main, footer { width: min(100% - 32px, 1120px); }
  .hero { padding-top: 56px; }
  .hero h1 { font-size: clamp(2.7rem, 11vw, 4.2rem); }
  .preflight-ledger, .chart-grid, .results-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .loading-panel { align-items: flex-start; }
}

@media (max-width: 540px) {
  .site-header, main, footer { width: min(100% - 24px, 1120px); }
  .system-status { padding-right: 9px; }
  .system-status span:last-child { display: none; }
  .header-actions { gap: 7px; }
  .member-button { padding-right: 9px; }
  #member-button-label { max-width: 72px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .hero { padding: 44px 0 32px; }
  .hero-row { align-items: center; gap: 16px; }
  .hero h1 { font-size: clamp(2.35rem, 12.5vw, 3.25rem); }
  .hero-copy br { display: none; }
  .research-console { margin-top: 35px; padding: 19px; }
  .console-heading h2 { font-size: 1.32rem; }
  .research-form { padding: 16px 15px 13px; }
  #submit-button { padding: 10px 15px; gap: 11px; }
  .suggestion-row { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 5px; }
  .group-label, .suggestion-row button { flex: 0 0 auto; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 108px; }
  .results-heading { align-items: flex-start; }
  .model-badge { max-width: 48%; overflow-wrap: anywhere; }
  .answer-card { padding: 26px 23px; }
  .document-mark { top: 18px; right: 17px; }
  .loading-panel { padding: 24px; }
  .dialog-shell { padding: 22px 19px; }
  .demo-access { align-items: flex-start; }
  .profile-card { grid-template-columns: auto minmax(0, 1fr); }
  .verified-member { grid-column: 2; }
  .member-watchlist { grid-template-columns: 1fr; }
  .member-footer { align-items: flex-start; }
  footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}