:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-strong: #f0f4f8;
  --text: #1d2733;
  --muted: #66758a;
  --line: #dce4ee;
  --primary: #176bff;
  --primary-dark: #0f4fc2;
  --accent: #15a36d;
  --warning: #f2a900;
  --danger: #d7263d;
  --ink: #0c1730;
  --shadow: 0 18px 42px rgba(29, 39, 51, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
}

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

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.muted {
  margin: 0;
  color: var(--muted);
}

.login-screen {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  background:
    linear-gradient(120deg, rgba(12, 23, 48, 0.9), rgba(18, 65, 102, 0.72)),
    url("https://images.unsplash.com/photo-1551434678-e076c223a692?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.login-visual {
  min-height: 100vh;
  padding: 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
}

.brand-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: #fff;
  color: var(--primary);
  font-weight: 900;
  box-shadow: var(--shadow);
}

.brand-mark.small {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.login-visual h1 {
  max-width: 680px;
  margin: 26px 0 18px;
  font-size: clamp(40px, 5vw, 70px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 620px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.8;
}

.login-metrics {
  display: flex;
  gap: 16px;
  margin-top: 42px;
  flex-wrap: wrap;
}

.login-metrics span {
  min-width: 140px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(18px);
}

.login-metrics strong {
  display: block;
  color: #fff;
  font-size: 28px;
}

.login-panel {
  margin: auto 8vw auto 0;
  width: min(420px, calc(100vw - 40px));
  padding: 38px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.login-panel h2,
.topbar h2,
.panel h3 {
  margin: 0;
  letter-spacing: 0;
}

.login-form {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--text);
  background: #fff;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 107, 255, 0.12);
}

.primary-btn,
.ghost-btn {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 800;
}

.primary-btn {
  background: var(--primary);
  color: #fff;
}

.primary-btn:hover {
  background: var(--primary-dark);
}

.ghost-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 18px;
  background: var(--ink);
  color: #fff;
}

.logo-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.logo-row span {
  display: block;
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
}

nav {
  display: grid;
  gap: 8px;
  margin-top: 22px;
}

.nav-item {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 0 14px;
  text-align: left;
  color: rgba(255, 255, 255, 0.72);
  background: transparent;
  font-weight: 700;
}

.nav-item.active,
.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.workspace {
  min-width: 0;
  padding: 26px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

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

.top-actions select {
  min-width: 210px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

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

.metric-card,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(29, 39, 51, 0.06);
}

.metric-card {
  padding: 18px;
}

.metric-card span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.metric-card strong {
  display: block;
  margin: 10px 0 8px;
  color: var(--ink);
  font-size: 30px;
}

.metric-card small {
  color: var(--muted);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.85fr);
  gap: 16px;
  margin-top: 16px;
}

.breakdown-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1.35fr);
  gap: 16px;
}

.workflow-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(360px, 1fr) minmax(0, 1.2fr);
  gap: 16px;
}

.wide {
  grid-column: span 1;
}

.panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 12px;
  background: var(--surface-strong);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 800;
  background: var(--surface-strong);
  color: var(--muted);
}

.tag.internal {
  color: #06664a;
  background: rgba(21, 163, 109, 0.12);
}

.tag.external {
  color: #7a4e00;
  background: rgba(242, 169, 0, 0.16);
}

.like-normal {
  color: var(--text);
  font-weight: 800;
}

.like-k {
  color: var(--primary);
  font-weight: 900;
}

.like-w {
  color: var(--danger);
  font-weight: 900;
}

.recommendation-list,
.hint-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.recommendation-list div,
.hint-list p {
  margin: 0;
  padding: 13px;
  border-radius: 8px;
  background: var(--surface-strong);
  color: var(--text);
  line-height: 1.55;
}

.form-layout,
.positioning-layout,
.analysis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 16px;
}

.account-form {
  display: grid;
  gap: 18px;
}

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

.field-grid.compact {
  grid-template-columns: 1fr;
}

.span-2 {
  grid-column: span 2;
}

.bar-chart {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.breakdown-control {
  align-self: start;
}

.workflow-control {
  align-self: start;
}

.breakdown-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.url-status {
  min-height: 38px;
  display: flex;
  align-items: center;
  border-radius: 8px;
  padding: 9px 12px;
  color: var(--muted);
  background: var(--surface-strong);
  font-size: 13px;
  font-weight: 800;
}

.url-status.valid {
  color: #06664a;
  background: rgba(21, 163, 109, 0.12);
}

.url-status.warning {
  color: #7a4e00;
  background: rgba(242, 169, 0, 0.16);
}

.breakdown-summary div {
  min-height: 86px;
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-strong);
}

.breakdown-summary span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.breakdown-summary strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 24px;
}

.breakdown-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.breakdown-tabs button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: #fff;
  font-weight: 800;
}

.breakdown-tabs button.active,
.breakdown-tabs button:hover {
  border-color: rgba(23, 107, 255, 0.28);
  color: var(--primary);
  background: rgba(23, 107, 255, 0.08);
}

.breakdown-result {
  min-height: 520px;
}

.breakdown-list {
  display: grid;
  gap: 12px;
}

.breakdown-step {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.breakdown-step span {
  display: inline-grid;
  place-items: center;
  height: 34px;
  border-radius: 8px;
  color: var(--primary);
  background: rgba(23, 107, 255, 0.09);
  font-size: 12px;
  font-weight: 900;
}

.breakdown-step h4 {
  margin: 0 0 6px;
  color: var(--ink);
}

.breakdown-step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.breakdown-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.breakdown-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 10px;
  color: #0f4fc2;
  background: rgba(23, 107, 255, 0.1);
  font-size: 12px;
  font-weight: 800;
}

.comment-signal {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 70px;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.signal-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-strong);
}

.signal-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.breakdown-actions {
  grid-column: 1 / -1;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.action-card {
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-strong);
}

.action-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
}

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

.workflow-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.workflow-kpis div {
  min-height: 78px;
  padding: 12px;
  border-radius: 8px;
  background: var(--surface-strong);
}

.workflow-kpis span,
.topic-card span,
.copy-item span,
.publish-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.workflow-kpis strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 24px;
}

.topic-list {
  display: grid;
  gap: 10px;
}

.topic-card {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  text-align: left;
  background: #fff;
}

.topic-card.active,
.topic-card:hover {
  border-color: rgba(23, 107, 255, 0.3);
  background: rgba(23, 107, 255, 0.07);
}

.topic-card strong {
  display: block;
  margin: 6px 0;
  color: var(--ink);
}

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

.script-grid {
  display: grid;
  gap: 12px;
}

.script-block {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.script-block span {
  display: inline-grid;
  place-items: center;
  min-height: 34px;
  border-radius: 8px;
  color: var(--primary);
  background: rgba(23, 107, 255, 0.09);
  font-size: 12px;
  font-weight: 900;
}

.script-block strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
}

.script-block p,
.copy-item p,
.publish-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.workflow-copy-panel {
  grid-column: 1 / 3;
}

.workflow-script-panel {
  grid-row: span 2;
}

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

.copy-item {
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-strong);
}

.copy-item strong {
  display: block;
  margin: 6px 0;
  color: var(--ink);
}

.workflow-publish-panel {
  grid-column: 1 / -1;
}

.publish-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.publish-card {
  min-height: 140px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.publish-card strong {
  display: block;
  margin: 8px 0;
  color: var(--ink);
}

.bar-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 72px;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.bar-track {
  height: 12px;
  border-radius: 999px;
  background: var(--surface-strong);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
}

.brand-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.brand-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px;
  border-radius: 8px;
  background: var(--surface-strong);
}

.brand-item strong {
  display: block;
}

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

.analysis-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.analysis-card {
  min-height: 280px;
}

.analysis-card span {
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
}

.analysis-card h3 {
  margin: 16px 0 12px;
  font-size: 22px;
}

.analysis-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  padding: 4px;
  margin: 18px 0;
  border-radius: 8px;
  background: var(--surface-strong);
}

.segmented button {
  min-height: 38px;
  border: 0;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
  font-weight: 800;
}

.segmented button.active {
  color: var(--primary);
  background: #fff;
  box-shadow: 0 4px 12px rgba(29, 39, 51, 0.08);
}

.textarea-label {
  margin-bottom: 16px;
}

.positioning-result {
  min-height: 360px;
}

.positioning-result ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.positioning-result strong {
  color: var(--text);
}

@media (max-width: 980px) {
  .login-screen {
    grid-template-columns: 1fr;
  }

  .login-visual {
    min-height: auto;
    padding: 42px 22px 28px;
  }

  .login-panel {
    margin: 0 auto 28px;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .metric-grid,
  .dashboard-grid,
  .breakdown-layout,
  .workflow-layout,
  .form-layout,
  .positioning-layout,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

  .workflow-copy-panel,
  .workflow-script-panel,
  .workflow-publish-panel {
    grid-column: auto;
    grid-row: auto;
  }

  .action-grid,
  .copy-checklist,
  .publish-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .workspace {
    padding: 16px;
  }

  .topbar,
  .top-actions,
  .panel-head {
    align-items: stretch;
    flex-direction: column;
  }

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

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

  .breakdown-summary,
  .workflow-kpis,
  .action-grid,
  .copy-checklist,
  .publish-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: span 1;
  }

  .login-panel {
    padding: 24px;
  }
}