:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-soft: #eef7f5;
  --surface-blue: #eef4ff;
  --text: #17202a;
  --muted: #5f6b7a;
  --line: #d9e1ea;
  --line-strong: #b9c7d5;
  --jade: #087e6f;
  --jade-dark: #055e55;
  --blue: #1d5cff;
  --blue-dark: #1241bd;
  --amber: #b66a00;
  --amber-soft: #fff4dd;
  --red: #b42318;
  --shadow: 0 16px 40px rgba(23, 32, 42, 0.08);
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--blue-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.app-shell {
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr);
  min-height: 100vh;
}

.side-rail {
  position: sticky;
  top: 0;
  display: flex;
  height: 100vh;
  flex-direction: column;
  gap: 22px;
  border-right: 1px solid var(--line);
  background: #fbfcfd;
  padding: 22px 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--jade);
  color: white;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 15px;
  line-height: 1.3;
}

.brand span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item,
.primary-action,
.secondary-action,
.sample-questions button,
.source-filter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.2;
}

.nav-item {
  justify-content: flex-start;
  width: 100%;
  background: transparent;
  color: var(--muted);
  padding: 10px 11px;
}

.nav-item:hover,
.nav-item.active {
  background: var(--surface-soft);
  color: var(--jade-dark);
}

.icon {
  display: inline-flex;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  align-items: center;
  justify-content: center;
}

.icon svg {
  display: block;
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.rail-note {
  margin-top: auto;
  border: 1px solid #f0d8aa;
  border-radius: var(--radius);
  background: var(--amber-soft);
  padding: 12px;
}

.rail-note strong {
  color: var(--amber);
  font-size: 13px;
}

.rail-note p {
  margin: 7px 0 0;
  color: #674200;
  font-size: 12px;
  line-height: 1.6;
}

.content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 18px;
  padding: 22px;
}

.workspace {
  scroll-margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(18px, 2vw, 28px);
}

.workspace-title,
.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 9px;
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 820;
  line-height: 1.06;
}

h2 {
  margin-bottom: 6px;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.16;
}

h3 {
  margin-bottom: 9px;
  font-size: 18px;
  line-height: 1.25;
}

.workspace-title p,
.section-header p,
.board-header p,
.timeline-row p,
.redline-panel p,
.submit-state p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.review-chip,
.scope-chip,
.source-filter,
.answer-tag {
  white-space: nowrap;
  border-radius: 999px;
}

.review-chip {
  border: 1px solid var(--line);
  background: #fbfcfd;
  color: var(--muted);
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 700;
}

.overview-grid,
.qa-grid,
.assessment-layout,
.lead-layout,
.advantage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.9fr);
  gap: 16px;
  align-items: stretch;
}

.planning-board,
.quick-panel,
.answer-panel,
.result-panel,
.assessment-form,
.ask-form,
.lead-form,
.submit-state,
.redline-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.planning-board {
  padding: 18px;
}

.board-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.board-header .icon {
  width: 34px;
  height: 34px;
  flex-basis: 34px;
  border-radius: var(--radius);
  background: var(--surface-blue);
  color: var(--blue);
}

.board-header .icon svg {
  width: 20px;
  height: 20px;
}

.city-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.city-column {
  min-height: 210px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.city-column.shenzhen {
  background: var(--surface-soft);
}

.city-column.hongkong {
  background: var(--surface-blue);
}

.city-column h3 {
  font-size: 22px;
}

.city-column ul,
.module-card ul,
.answer-panel ul,
.result-panel ul,
.source-card ul {
  margin: 0;
  padding-left: 20px;
}

.city-column li,
.module-card li,
.answer-panel li,
.result-panel li {
  margin: 9px 0;
  line-height: 1.55;
}

.quick-panel,
.submit-state {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
}

.metric-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.metric-row span {
  color: var(--muted);
  font-size: 13px;
}

.metric-row strong {
  color: var(--jade-dark);
  font-size: 17px;
  text-align: right;
}

.warning-box {
  display: flex;
  gap: 10px;
  border: 1px solid #f0d8aa;
  border-radius: var(--radius);
  background: var(--amber-soft);
  padding: 12px;
  color: #674200;
}

.warning-box p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
}

.warning-box .icon {
  color: var(--amber);
}

.primary-action {
  width: fit-content;
  border-color: var(--jade-dark);
  background: var(--jade);
  color: white;
  padding: 0 15px;
  transition: transform 0.18s ease, background 0.18s ease;
}

.quick-panel .primary-action,
.ask-form .primary-action,
.assessment-form .primary-action,
.lead-form .primary-action {
  width: 100%;
}

.primary-action:hover {
  background: var(--jade-dark);
  text-decoration: none;
  transform: translateY(-1px);
}

.secondary-action {
  width: fit-content;
  border: 1px solid var(--line);
  background: #fbfcfd;
  color: var(--jade-dark);
  padding: 0 13px;
}

.secondary-action:hover {
  border-color: var(--jade);
  background: var(--surface-soft);
  text-decoration: none;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.module-card {
  min-height: 270px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 16px;
}

.module-card h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.module-card p {
  color: var(--muted);
  line-height: 1.62;
}

.risk-line {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  color: var(--amber);
  font-size: 13px;
  line-height: 1.55;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 14px;
}

.timeline-row > span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--jade);
  color: #fff;
  font-weight: 800;
}

.redline-panel {
  border-color: #f0d8aa;
  background: var(--amber-soft);
  padding: 18px;
}

.redline-panel h3 {
  color: var(--amber);
}

.ask-form,
.assessment-form,
.lead-form {
  display: grid;
  gap: 14px;
  padding: 16px;
}

label,
legend {
  color: var(--text);
  font-size: 13px;
  font-weight: 720;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  margin-top: 7px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  font-size: 15px;
  line-height: 1.45;
  outline: none;
  padding: 10px 11px;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(29, 92, 255, 0.13);
}

.source-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.question-bank {
  display: grid;
  gap: 9px;
}

.question-bank-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.question-bank-head strong {
  font-size: 15px;
}

.question-bank-head span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  text-align: right;
}

.sample-questions {
  display: grid;
  gap: 9px;
}

.question-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.question-filter {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  padding: 0 10px;
  font-size: 12px;
  font-weight: 720;
  line-height: 1;
}

.question-filter:hover,
.question-filter.active {
  border-color: rgba(8, 126, 111, 0.35);
  background: var(--surface-soft);
  color: var(--jade-dark);
}

.question-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 8px;
  max-height: 208px;
  overflow-y: auto;
  padding-right: 2px;
}

.sample-questions button,
.source-filter {
  border-color: var(--line);
  background: #fbfcfd;
  color: var(--text);
  padding: 0 12px;
}

.sample-questions .question-chip {
  display: flex;
  min-height: 40px;
  justify-content: flex-start;
  gap: 8px;
  overflow: hidden;
  padding: 8px 10px;
  text-align: left;
}

.question-chip span {
  display: none;
}

.question-chip strong {
  min-width: 0;
  color: var(--text);
  font-size: 13px;
  font-weight: 720;
  line-height: 1.25;
}

.question-chip:focus-visible,
.question-filter:focus-visible {
  border-color: var(--jade);
  box-shadow: 0 0 0 3px rgba(8, 126, 111, 0.13);
  outline: none;
}

.sample-questions button:hover,
.source-filter:hover,
.source-filter.active {
  border-color: var(--jade);
  background: var(--surface-soft);
  color: var(--jade-dark);
}

.answer-panel,
.result-panel {
  min-height: 340px;
  padding: 16px;
}

.answer-empty {
  display: grid;
  height: 100%;
  min-height: 260px;
  place-items: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
}

.answer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.answer-tag {
  display: inline-flex;
  border: 1px solid var(--line);
  background: var(--surface-blue);
  color: var(--blue-dark);
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 800;
}

.answer-panel p,
.result-panel p {
  color: var(--text);
  line-height: 1.75;
}

.answer-cta {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.source-links {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.source-links a {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfd;
  padding: 10px;
  font-size: 13px;
  line-height: 1.45;
}

.source-links span {
  color: var(--muted);
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.toggle-row,
.consent-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  margin-top: 23px;
}

.toggle-row input,
.consent-row input,
.focus-set input {
  width: 18px;
  min-height: 18px;
  margin: 0;
  accent-color: var(--jade);
}

.toggle-row span,
.consent-row span {
  line-height: 1.45;
}

.focus-set {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
}

.focus-set.compact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.focus-set legend {
  padding: 0 6px;
}

.focus-set label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  color: var(--muted);
  font-weight: 650;
}

.result-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.result-title strong {
  display: block;
  color: var(--jade-dark);
  font-size: 26px;
}

.report-kicker {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.report-card,
.review-needed {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfd;
  padding: 12px;
}

.report-card ol,
.report-card ul,
.review-needed ul {
  margin: 0;
  padding-left: 20px;
}

.report-card li,
.review-needed li {
  margin: 7px 0;
  line-height: 1.55;
}

.result-block {
  margin-top: 14px;
}

.result-block h4 {
  margin: 0 0 8px;
  font-size: 14px;
}

.report-cta {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.report-cta .compact-action {
  width: 100%;
}

.report-cta p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.source-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.source-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 15px;
}

.source-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.source-card h3 {
  margin-bottom: 4px;
}

.source-card p {
  margin-bottom: 11px;
  color: var(--muted);
  line-height: 1.6;
}

.source-card li {
  margin: 8px 0;
  line-height: 1.45;
}

.submit-state {
  align-items: flex-start;
  justify-content: center;
  background: var(--surface-soft);
}

.submit-state .icon {
  width: 42px;
  height: 42px;
  color: var(--jade);
}

.submit-state .icon svg {
  width: 34px;
  height: 34px;
}

.submission-summary {
  display: grid;
  gap: 6px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 12px;
}

.submission-summary strong {
  color: var(--jade-dark);
  font-size: 13px;
}

.submission-summary span {
  color: var(--text);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.toast {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfd;
  padding: 12px;
  color: var(--text);
  line-height: 1.6;
}

.toast.error {
  border-color: #f3b6ad;
  background: #fff1ef;
  color: var(--red);
}

@media (max-width: 1120px) {
  .module-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .app-shell {
    display: block;
  }

  .side-rail {
    z-index: 10;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 12px;
  }

  .brand {
    margin-bottom: 8px;
  }

  .nav-list {
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .nav-item {
    width: auto;
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .rail-note {
    display: none;
  }

  .content {
    padding: 14px;
  }

  .workspace {
    scroll-margin-top: 114px;
  }

  .workspace-title,
  .section-header,
  .overview-grid,
  .qa-grid,
  .assessment-layout,
  .lead-layout,
  .advantage-layout,
  .city-compare,
  .report-grid {
    grid-template-columns: 1fr;
  }

  .workspace-title,
  .section-header {
    display: grid;
  }

  .review-chip {
    width: fit-content;
  }

  .source-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .content {
    gap: 12px;
    padding: 10px;
  }

  .workspace {
    padding: 15px;
  }

  h1 {
    font-size: 34px;
  }

  .module-grid,
  .field-row,
  .focus-set,
  .focus-set.compact {
    grid-template-columns: 1fr;
  }

  .city-column {
    min-height: 0;
  }

  .toggle-row,
  .consent-row {
    margin-top: 0;
  }

  .answer-head,
  .result-title,
  .question-bank-head,
  .source-card header {
    display: grid;
  }

  .question-bank-head span {
    text-align: left;
  }

  .question-list {
    grid-template-columns: 1fr;
    max-height: 220px;
  }

  .source-links a {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .primary-action {
    transition: none;
  }
}