:root {
  --bg: #f6f9fc;
  --ink: #193b55;
  --heading: #0f3550;
  --muted: #526f86;
  --line: #cfdae5;
  --panel: #ffffff;
  --accent: #0086a6;
  --accent-dark: #00667f;
  --accent-2: #d65a2f;
  --soft: #eaf8f7;
  --soft-blue: #edf6ff;
  --shadow: 0 14px 34px rgba(31, 77, 109, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 28px auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px 32px;
  margin-bottom: 18px;
  border-color: #cbd8e6;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

h1, h2, h3 {
  margin: 0;
  color: var(--heading);
}

h1 {
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: 0;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
}

h3 {
  line-height: 1.35;
}

.summary {
  max-width: 720px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.score-card {
  min-width: 140px;
  padding: 16px;
  background: var(--soft);
  border: 1px solid #c8e4dc;
  border-radius: 8px;
}

.score-card span,
.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.score-card strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
}

.workspace {
  display: grid;
  grid-template-columns: 372px 1fr;
  gap: 18px;
  align-items: start;
}

.form {
  padding: 22px;
  position: sticky;
  top: 18px;
}

label {
  display: block;
  margin-bottom: 14px;
}

label span {
  display: block;
  margin-bottom: 7px;
  font-size: 14px;
  font-weight: 700;
  color: var(--heading);
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 13px;
  font: inherit;
  color: var(--ink);
  background: #fbfcff;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(0, 134, 166, 0.14);
}

textarea {
  resize: vertical;
}

small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.optional-fields {
  margin: 8px 0 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: #f8fafc;
}

.optional-fields summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 700;
}

.optional-fields label:first-of-type {
  margin-top: 14px;
}

button {
  width: 100%;
  border: 0;
  border-radius: 6px;
  padding: 12px 14px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover:not(:disabled) {
  background: var(--accent-dark);
  box-shadow: 0 8px 18px rgba(0, 134, 166, 0.24);
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.hint {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.time-note {
  margin: 12px 0 0;
  padding: 9px 10px;
  border: 1px solid #c9ddec;
  border-radius: 6px;
  background: var(--soft-blue);
  color: #25465b;
  font-size: 13px;
  line-height: 1.55;
}

.empty {
  padding: 32px;
  border-color: #d6e0eb;
}

.empty p {
  color: var(--muted);
}

.loading-head {
  display: flex;
  gap: 14px;
  align-items: center;
}

.loader-ring {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border: 4px solid #d7e5f2;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.progress-track {
  height: 8px;
  margin: 22px 0 18px;
  overflow: hidden;
  border-radius: 999px;
  background: #dfe8f2;
}

.progress-bar {
  width: 42%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #44a6a1);
  animation: progressMove 1.7s ease-in-out infinite;
}

.loading-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.loading-steps li {
  min-height: 44px;
  padding: 10px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcff;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.loading-steps li.active {
  border-color: #9acbcf;
  background: var(--soft);
  color: var(--accent-dark);
  font-weight: 700;
}

.loading-tip {
  margin-top: 16px;
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--soft-blue);
  color: #25465b;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes progressMove {
  0% {
    transform: translateX(-105%);
  }

  55% {
    transform: translateX(80%);
  }

  100% {
    transform: translateX(245%);
  }
}

.hidden {
  display: none;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.metric {
  min-height: 142px;
  padding: 14px 10px;
  border-color: #d4dee9;
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  text-align: center;
}

.metric-ring {
  --ring-color: #0086a6;
  position: relative;
  display: grid;
  width: 84px;
  height: 84px;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--ring-color) calc(var(--score) * 1%), #e2ebf2 0);
}

.metric-ring::after {
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(207, 218, 229, 0.72);
  border-radius: 50%;
  background: #ffffff;
  content: "";
}

.metric-ring-center {
  position: relative;
  z-index: 1;
}

.metric-ring strong {
  color: var(--heading);
  font-size: 22px;
  line-height: 1;
}

.metric-ring.is-empty {
  background: conic-gradient(#cbd7e1 0 100%);
}

.metric-ring.is-empty strong {
  font-size: 12px;
}

.metric-label {
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.metric-overall {
  border-color: #97d5dc;
  background: linear-gradient(180deg, #ffffff 0%, #ebf9fa 100%);
}

.metric-overall .metric-ring {
  --ring-color: #0086a6;
}

.metric-natural .metric-ring {
  --ring-color: #347fd0;
}

.metric-recognition .metric-ring {
  --ring-color: #16a27d;
}

.metric-sources .metric-ring {
  --ring-color: #e39824;
}

.metric-foundation .metric-ring {
  --ring-color: #7569d7;
}

.section {
  padding: 22px;
  margin-bottom: 14px;
}

.export-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.export-actions {
  display: flex;
  gap: 10px;
  flex: 0 0 auto;
}

.export-actions button {
  width: auto;
  min-width: 118px;
  padding: 10px 12px;
  background: #253241;
}

.checks {
  display: grid;
  gap: 10px;
}

.check {
  display: grid;
  grid-template-columns: 92px 1fr 64px;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
}

.pass {
  color: var(--accent);
  font-weight: 700;
}

.fail {
  color: var(--accent-2);
  font-weight: 700;
}

.check p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

pre {
  max-height: 360px;
  overflow: auto;
  padding: 14px;
  border-radius: 6px;
  background: #111827;
  color: #e5edf7;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

ul {
  margin: 12px 0 0;
  padding-left: 22px;
  line-height: 1.8;
}

.copy-row {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.copy-row button {
  width: auto;
  min-width: 92px;
  padding: 8px 10px;
  background: #24352f;
}

.history-summary {
  background: #fbfcff;
}

.history-summary .copy-row > strong {
  color: var(--accent);
  white-space: nowrap;
}

.history-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.history-chip {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
}

.history-chip strong {
  display: block;
  font-size: 22px;
}

.history-chip span,
.history-chip small {
  display: block;
  overflow: hidden;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.history-chip span {
  margin-top: 4px;
  color: var(--ink);
}

.question-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.question-groups div {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: #fbfcff;
}

.question-groups p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.question-groups small {
  display: block;
  margin-top: 8px;
  color: var(--accent);
  line-height: 1.5;
}

.question-details {
  margin-top: 12px;
}

.question-details summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 700;
}

.positive-list {
  list-style: none;
  padding-left: 0;
}

.positive-list li {
  margin-bottom: 10px;
  padding: 12px;
  border: 1px solid #c6e1de;
  border-radius: 6px;
  background: var(--soft);
}

.advice-list {
  display: grid;
  gap: 10px;
  margin: 14px 0;
}

.advice-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcff;
}

.advice-card p {
  margin: 7px 0;
  color: var(--muted);
  line-height: 1.6;
}

.advice-card span {
  display: block;
  color: var(--ink);
  line-height: 1.6;
}

.ai-conclusion {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.ai-conclusion div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcff;
}

.ai-conclusion strong {
  display: block;
  font-size: 28px;
}

.ai-conclusion span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.score-note {
  display: grid;
  gap: 8px;
}

.score-note p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.score-note strong {
  color: var(--ink);
}

.market-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.market-grid div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft-blue);
}

.market-grid strong {
  display: block;
  font-size: 30px;
  color: var(--heading);
}

.market-grid span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
}

.source-overview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.source-overview div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft-blue);
}

.source-overview span {
  display: block;
  color: var(--muted);
}

.source-overview strong {
  display: block;
  margin-top: 4px;
  font-size: 28px;
  color: var(--heading);
}

.source-types {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.source-types span {
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--muted);
  font-size: 13px;
}

.platform-explainer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.platform-result,
.platform-boundary {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.platform-result {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 12px;
  border-color: #9bd9cc;
  background: #ecfbf6;
}

.platform-boundary {
  border-color: #d9c9a8;
  background: #fff9ec;
}

.status-mark {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: #16a27d;
  box-shadow: 0 0 0 4px rgba(22, 162, 125, 0.13);
}

.platform-explainer small,
.platform-explainer strong {
  display: block;
}

.platform-explainer strong {
  margin-top: 3px;
  color: var(--heading);
  font-size: 18px;
}

.platform-explainer p {
  margin: 7px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.platform-more {
  margin-top: 14px;
  padding-top: 2px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.platform-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcff;
}

.platform-card.active {
  border-color: #9acbcf;
  background: var(--soft);
}

.platform-card span,
.platform-card small {
  display: block;
  color: var(--muted);
}

.platform-card strong {
  display: block;
  margin-top: 4px;
  font-size: 22px;
}

.platform-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.insight-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.insight-columns > div {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px;
  background: #fbfcff;
}

.insight-columns h3 {
  font-size: 16px;
}

.visibility-summary {
  display: grid;
  grid-template-columns: 140px 140px 1fr;
  gap: 14px;
  align-items: center;
  margin: 14px 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--soft-blue);
}

.visibility-summary span,
.visibility-summary em {
  display: block;
  color: var(--muted);
  font-style: normal;
  font-size: 13px;
}

.visibility-summary strong {
  display: block;
  font-size: 34px;
  color: var(--heading);
}

.visibility-summary p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.visibility-parts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.visibility-parts div {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: #fbfcff;
}

.visibility-parts span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

@media (max-width: 860px) {
  .intro,
  .workspace {
    display: block;
  }

  .score-card {
    margin-top: 18px;
  }

  .form {
    position: static;
    margin-bottom: 18px;
  }

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

  .metric-overall {
    grid-column: 1 / -1;
  }

  .check {
    grid-template-columns: 1fr;
  }

  .export-bar,
  .export-actions {
    display: block;
  }

  .export-actions button {
    width: 100%;
    margin-top: 8px;
  }

  .history-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .loading-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .question-groups {
    grid-template-columns: 1fr;
  }

  .visibility-summary,
  .visibility-parts,
  .ai-conclusion,
  .market-grid,
  .insight-columns,
  .source-overview,
  .platform-grid,
  .platform-explainer {
    grid-template-columns: 1fr;
  }
}

@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;
  }
}