:root {
  color-scheme: light;
  --bg: #eef5f4;
  --panel: #ffffff;
  --ink: #152425;
  --muted: #687778;
  --line: #dbe6e4;
  --accent: #0f9f9a;
  --accent-dark: #087773;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #f7fbfb 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.topbar,
.workspace,
.admin-grid {
  display: grid;
  gap: 20px;
}

.topbar {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 24px;
}

.trial-topbar {
  margin-bottom: 18px;
}

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

.brand span,
.hint,
.result-head span,
.admin-row span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #122123;
  color: #78fff3;
  font-weight: 800;
}

.admin-link,
a {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.contact-link {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  background: #ffffff;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: stretch;
  margin-bottom: 20px;
}

.intro h1 {
  max-width: 760px;
  margin: 0 0 10px;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.08;
  letter-spacing: 0;
}

.intro p {
  max-width: 700px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.intro-note,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  padding: 18px;
}

.intro-note strong,
.contact-panel strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.intro-note span,
.contact-panel span {
  color: var(--muted);
  line-height: 1.7;
}

.workspace {
  grid-template-columns: 390px 1fr;
  align-items: start;
}

.admin-grid {
  grid-template-columns: 360px 1fr;
  align-items: start;
}

.panel,
.preview {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 48px rgba(15, 37, 38, 0.08);
}

.panel {
  padding: 20px;
}

.preview {
  min-height: 620px;
  padding: 20px;
}

label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  font-weight: 700;
}

.field-note {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
}

.check-row {
  grid-template-columns: 20px 1fr;
  align-items: start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfb;
}

.check-row input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.check-row span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.field-block {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.field-head label {
  display: block;
  margin: 0;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

.field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.inline-action {
  width: auto;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  padding: 8px 12px;
  background: #ffffff;
  color: var(--accent-dark);
  font-size: 14px;
}

button {
  width: 100%;
  border: 0;
  border-radius: 8px;
  padding: 14px 16px;
  background: var(--accent);
  color: #ffffff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.secondary-action {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--accent-dark);
  margin-bottom: 16px;
}

.workflow-actions {
  display: grid;
  gap: 12px;
  margin: 0 0 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfb;
}

.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.action-grid .secondary-action {
  margin: 0;
  padding: 12px 10px;
}

.workflow-plan {
  display: grid;
  gap: 12px;
  margin: 0 0 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfb;
}

.workflow-plan[hidden] {
  display: none;
}

.workflow-plan label {
  margin-bottom: 0;
}

.plan-head {
  display: grid;
  gap: 4px;
}

.plan-head strong {
  font-size: 18px;
}

.plan-head span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.plan-result b {
  color: var(--ink);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.empty {
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}

.task-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px 86px;
  gap: 10px;
  margin-bottom: 16px;
}

.task-tools button {
  padding: 12px 10px;
}

.status-panel {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #f8fafc;
}

.status-panel strong,
.status-panel span {
  display: block;
}

.status-panel span {
  color: var(--muted);
  line-height: 1.7;
  margin-top: 6px;
}

.empty strong {
  font-size: 24px;
}

.results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.result-head {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
}

.result-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.analysis-card {
  grid-column: 1 / -1;
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 8px;
  background: #ffffff;
  padding: 16px;
}

.analysis-card strong,
.analysis-card span,
.analysis-card p {
  display: block;
}

.analysis-card span,
.analysis-card p {
  color: var(--muted);
  line-height: 1.7;
}

.analysis-card p {
  margin: 8px 0 0;
}

.result-card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #f8fafc;
}

.result-card video {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  background: #0f172a;
}

.result-card div,
.admin-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
}

.admin-row {
  border-bottom: 1px solid var(--line);
}

.admin-row:last-child {
  border-bottom: 0;
}

h2 {
  margin: 0 0 16px;
  font-size: 20px;
}

.contact-panel {
  margin-top: 20px;
}

@media (max-width: 860px) {
  .workspace,
  .admin-grid,
  .results,
  .intro {
    grid-template-columns: 1fr;
  }

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

  .contact-link {
    display: none;
  }

  .task-tools {
    grid-template-columns: 1fr;
  }

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

  .preview {
    min-height: 360px;
  }

  .empty {
    min-height: 300px;
  }
}