:root {
  --bg: #f6f8f4;
  --panel: #ffffff;
  --panel-2: #eef7f4;
  --line: rgba(24,52,57,.14);
  --text: #162329;
  --muted: #607078;
  --mint: #19b88a;
  --blue: #446df6;
  --amber: #f1b84b;
  --coral: #ee7d65;
  --ink: #0f2430;
  --soft: #fff8ed;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(180deg, #fffaf1 0, #f6f8f4 320px, #f6f8f4 100%),
    var(--bg);
  color: var(--text);
  font-family: "Noto Sans TC", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 22px;
  max-width: 1160px;
  margin: auto;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}
.mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, #153a46, #19b88a);
  font-weight: 950;
}
.brand b,
.brand small { display: block; }
.brand small { color: var(--muted); font-size: 11px; }
nav { display: flex; gap: 10px; align-items: center; font-weight: 800; font-size: 14px; }
nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  border-radius: 999px;
  color: #42535b;
  text-decoration: none;
}
nav a:hover { background: rgba(25,184,138,.08); color: var(--ink); }
.language-toggle {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
}
.language-toggle button {
  min-width: 34px;
  min-height: 30px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #52636b;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 900;
}
.language-toggle button[aria-pressed="true"] {
  background: rgba(125,227,178,.18);
  color: var(--mint);
}
.nav-cta,
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 8px;
  box-shadow: 0 14px 28px rgba(25,184,138,.18);
  background: linear-gradient(135deg, #1fc995, #446df6);
  color: #fff;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}
.button.secondary {
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  color: var(--ink);
  box-shadow: none;
}
.hero,
.section,
.chat-shell,
.dashboard,
.setup-page {
  max-width: 1160px;
  margin: auto;
  padding: 56px 28px;
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, .96fr) minmax(360px, 1.04fr);
  gap: 34px;
  align-items: center;
}
.kicker {
  margin: 0 0 12px;
  color: #12765e;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}
h1,
h2,
h3,
p { overflow-wrap: anywhere; }
h1 {
  margin: 0;
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.12;
}
h2 {
  margin: 0;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.14;
}
.lead {
  color: #4e616a;
  font-size: clamp(17px, 2vw, 20px);
}
.hero-actions,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.preview-card,
.panel,
.chat-card,
.question-card,
.stat-card,
.report-card,
.setup-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 24px 60px rgba(28,52,58,.08);
}
.preview-card { padding: 20px; }
.product-preview {
  background: linear-gradient(145deg, #ffffff, #eef9f5);
}
.assistant-portrait {
  overflow: hidden;
  margin-bottom: 16px;
  border: 1px solid rgba(24,52,57,.1);
  border-radius: 8px;
  background: #fff8ed;
}
.assistant-portrait img {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  object-position: 50% 32%;
}
.preview-top,
.chat-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.status-pill {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(25,184,138,.12);
  color: #0f765d;
  font-size: 12px;
  font-weight: 900;
}
.message-list {
  display: grid;
  gap: 10px;
  margin: 18px 0;
}
.flow-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}
.flow-stack div {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  align-items: start;
  padding: 13px;
  border-radius: 8px;
  background: #f6fbf8;
}
.flow-stack span {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: rgba(25,184,138,.12);
  color: #0f765d;
  font-weight: 950;
}
.flow-stack p {
  margin: 0;
  color: #43565e;
}
.bubble {
  max-width: 88%;
  padding: 12px 14px;
  border-radius: 8px;
  background: #f4f7f5;
  color: var(--ink);
}
.bubble.user {
  justify-self: end;
  background: rgba(68,109,246,.1);
}
.section-grid,
.dashboard-grid,
.report-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 34px;
}
.section-grid article,
.stat-card,
.report-card {
  padding: 20px;
}
.section-grid span,
.report-card span,
.stat-card span {
  color: #3157d7;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.section-grid p,
.report-card p,
.stat-card p,
.setup-card p,
.question-card p {
  color: var(--muted);
}
.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.offer-band {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 36px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.feature-list div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.feature-list b,
.feature-list span { display: block; }
.feature-list span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}
.pricing article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.pricing strong {
  display: block;
  color: #0f765d;
  font-size: 34px;
}
.chat-shell {
  display: grid;
  grid-template-columns: minmax(300px, .85fr) minmax(0, 1.15fr);
  gap: 28px;
  align-items: start;
}
.business-card {
  position: sticky;
  top: 20px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, #ffffff, #f0f8f4);
}
.business-card h1 { font-size: 42px; }
.business-meta {
  display: grid;
  gap: 9px;
  margin: 20px 0;
}
.business-meta div {
  padding: 12px;
  border-radius: 8px;
  background: #f6fbf8;
}
.chat-card { padding: 20px; }
.chat-log {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 420px;
  max-height: 520px;
  overflow: auto;
  padding: 16px 0;
}
.quick-questions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.quick-questions button {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--text);
  padding: 8px 10px;
  cursor: pointer;
}
.chat-form {
  display: flex;
  gap: 10px;
}
.chat-form input,
.setup-card input,
.setup-card textarea,
.setup-card select {
  width: 100%;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  font: inherit;
  padding: 13px 14px;
  outline: none;
}
.setup-card textarea { min-height: 130px; resize: vertical; }
.safe-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}
.dashboard {
  display: grid;
  gap: 24px;
}
.dashboard-hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}
.dashboard-hero h1 { font-size: clamp(36px, 5vw, 60px); }
.report-grid {
  grid-template-columns: 1.1fr .9fr;
}
.question-card {
  display: grid;
  gap: 10px;
  padding: 18px;
}
.question-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 14px;
  border-radius: 8px;
  background: rgba(255,255,255,.05);
}
.setup-card {
  padding: 22px;
}
.setup-page {
  display: grid;
  gap: 24px;
}
.setup-intro {
  max-width: 900px;
}
.setup-intro h1 {
  font-size: clamp(38px, 5vw, 64px);
}
.auth-callout {
  margin-top: 26px;
  padding: 20px;
  border: 1px solid rgba(125,227,178,.34);
  border-radius: 8px;
  background: rgba(25,184,138,.08);
}
.auth-callout b,
.auth-callout span {
  display: block;
}
.auth-callout span {
  margin-top: 6px;
  color: var(--muted);
}
.professional-setup {
  background: linear-gradient(145deg, #ffffff, #f5fbf8);
}
.form-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.form-heading h2 {
  font-size: clamp(26px, 3.2vw, 40px);
}
.setup-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.setup-form label { color: rgba(244,247,245,.9); font-weight: 850; font-size: 13px; }
.setup-form .wide { grid-column: 1 / -1; }
.field-note {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}
.draft-output {
  border-color: rgba(68,109,246,.2);
}
.approval-list {
  display: grid;
  gap: 12px;
}
.approval-list article {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.approval-list span {
  color: #3157d7;
  font-size: 11px;
  font-weight: 950;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.approval-list h3 {
  margin: 12px 0 6px;
}
.approval-list p {
  color: var(--muted);
}
.approve-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.approve-row button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  padding: 8px 11px;
  cursor: pointer;
  font-weight: 800;
}
.approve-row button:first-child {
  border-color: rgba(125,227,178,.35);
  color: var(--mint);
}
footer {
  max-width: 1180px;
  margin: auto;
  padding: 26px 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}
@media (max-width: 850px) {
  .site-header,
  .dashboard-hero { align-items: flex-start; flex-direction: column; }
  nav { flex-wrap: wrap; }
  .flow-stack { grid-template-columns: 1fr; }
  .hero,
  .chat-shell,
  .report-grid,
  .offer-band,
  .feature-list,
  .setup-form,
  .section-grid,
  .dashboard-grid,
  .pricing { grid-template-columns: 1fr; }
  .business-card { position: static; }
}
@media (max-width: 560px) {
  .site-header,
  .hero,
  .section,
  .chat-shell,
  .dashboard,
  footer {
    padding-left: 16px;
    padding-right: 16px;
  }
  .chat-form,
  .inline-actions { flex-direction: column; }
  .button,
  .nav-cta { width: 100%; }
}