.platform-page {
  min-height: 100vh;
  padding: 28px;
  background: var(--tiku-page);
  color: var(--tiku-text);
}

.platform-shell {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.platform-header {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border-radius: 30px;
  background: linear-gradient(135deg, #0f172a, #1152d4 62%, #38bdf8);
  box-shadow: var(--tiku-shadow-blue);
}

.platform-header::after {
  content: "";
  position: absolute;
  right: -64px;
  bottom: -84px;
  width: 240px;
  height: 240px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.platform-kicker,
.platform-title,
.platform-subtitle {
  position: relative;
  z-index: 1;
  display: block;
}

.platform-kicker {
  color: rgba(255, 255, 255, 0.78);
  font-size: 22px;
  font-weight: 850;
}

.platform-title {
  margin-top: 8px;
  color: #fff;
  font-size: 38px;
  font-weight: 920;
  line-height: 1.2;
}

.platform-subtitle {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 24px;
  line-height: 1.45;
}

.platform-tabs,
.platform-actions {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.platform-shell > .platform-actions,
.platform-shell > .platform-tabs,
.platform-section > .platform-actions:first-child {
  padding: 14px;
  border: 1px solid var(--tiku-border);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.platform-button,
.platform-mini-button {
  border: 1px solid var(--tiku-border);
  background: #fff;
  color: var(--tiku-primary);
  font-weight: 820;
}

.platform-button {
  min-width: 132px;
  height: 62px;
  border-radius: 16px;
  font-size: 23px;
  line-height: 62px;
}

.platform-mini-button {
  min-width: 116px;
  height: 54px;
  border-radius: 14px;
  font-size: 21px;
  line-height: 54px;
}

.platform-button.primary {
  border-color: var(--tiku-primary);
  background: linear-gradient(135deg, var(--tiku-primary), #2563eb);
  color: #fff;
  box-shadow: 0 10px 20px rgba(17, 82, 212, 0.16);
}

.platform-button.active,
.platform-mini-button.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
  color: var(--tiku-primary);
}

.platform-mini-button.danger {
  border-color: #fecdd3;
  background: #fff1f2;
  color: #be123c;
}

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

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

.platform-metric {
  min-height: 112px;
  padding: 20px;
  border: 1px solid var(--tiku-border);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--tiku-shadow);
}

.platform-metric-label {
  display: block;
  color: var(--tiku-muted);
  font-size: 21px;
}

.platform-metric-value {
  display: block;
  margin-top: 12px;
  color: var(--tiku-text);
  font-size: 31px;
  font-weight: 900;
  line-height: 1.2;
}

.platform-section {
  margin-top: 4px;
  padding: 24px;
  border: 1px solid var(--tiku-border);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
}

.platform-section-title {
  display: block;
  margin-bottom: 14px;
  color: var(--tiku-text);
  font-size: 29px;
  font-weight: 900;
}

.platform-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.platform-row {
  padding: 20px;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 5px 16px rgba(15, 23, 42, 0.04);
}

.platform-row:nth-child(4n + 1) {
  border-color: #dbeafe;
}

.platform-row:nth-child(4n + 2) {
  border-color: #dcfce7;
}

.platform-row:nth-child(4n + 3) {
  border-color: #fae8ff;
}

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

.platform-module-card {
  position: relative;
  overflow: hidden;
  min-height: 170px;
  padding: 22px;
  border-radius: 28px;
  background: linear-gradient(135deg, #1152d4, #38bdf8);
  box-shadow: 0 12px 24px rgba(17, 82, 212, 0.14);
}

.platform-module-card:nth-child(2) { background: linear-gradient(135deg, #10b981, #2dd4bf); }
.platform-module-card:nth-child(3) { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.platform-module-card:nth-child(4) { background: linear-gradient(135deg, #f97316, #fbbf24); }

.platform-module-card::after {
  content: "";
  position: absolute;
  right: -28px;
  bottom: -44px;
  width: 130px;
  height: 130px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
}

.platform-module-card .platform-row-main,
.platform-module-card .platform-row-meta,
.platform-module-label {
  position: relative;
  z-index: 1;
}

.platform-module-card .platform-row-main {
  margin-top: 30px;
  color: #fff;
  font-size: 30px;
  font-weight: 950;
}

.platform-module-card .platform-row-meta {
  color: rgba(255, 255, 255, 0.82);
}

.platform-module-label {
  display: block;
  color: rgba(255, 255, 255, 0.82);
  font-size: 20px;
  font-weight: 850;
}

.platform-row-main {
  display: block;
  color: var(--tiku-text);
  font-size: 26px;
  font-weight: 820;
  line-height: 1.35;
}

.platform-row-meta {
  display: block;
  margin-top: 8px;
  color: var(--tiku-muted);
  font-size: 21px;
  line-height: 1.45;
}

.platform-empty {
  padding: 32px 22px;
  border: 1px dashed var(--tiku-border-strong);
  border-radius: 22px;
  background: #fff;
  color: var(--tiku-muted);
  font-size: 23px;
  line-height: 1.45;
}

.platform-input {
  width: 100%;
  height: 66px;
  padding: 0 18px;
  border: 1px solid var(--tiku-border);
  border-radius: 16px;
  background: #fff;
  color: var(--tiku-text);
  font-size: 24px;
}

.platform-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: #f8fafc;
}

.platform-form.compact {
  margin-top: 12px;
}

.platform-field {
  min-width: 0;
}

.platform-field.wide {
  grid-column: 1 / -1;
}

.platform-field-label {
  display: block;
  margin-bottom: 8px;
  color: var(--tiku-muted);
  font-size: 20px;
  font-weight: 760;
}

.platform-row-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
  overflow-x: visible;
}

.platform-permission-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 8px 0 16px;
  padding: 18px;
  border: 1px solid var(--tiku-border);
  border-radius: 22px;
  background: #fff;
}

.platform-permission-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.platform-permission-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.platform-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.platform-chip-list.compact {
  margin-top: 14px;
}

.platform-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--tiku-border);
  border-radius: 999px;
  background: #f8fafc;
  color: #334155;
  font-size: 20px;
  font-weight: 720;
  line-height: 1.25;
}

.platform-chip.active {
  border-color: var(--tiku-primary);
  background: var(--tiku-primary-soft);
  color: var(--tiku-primary);
}

.platform-chip.readonly {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: #1d4ed8;
}

.platform-error {
  display: block;
  margin-top: 12px;
  color: #be123c;
  font-size: 22px;
}

@media (min-width: 980px) {
  .platform-page {
    max-width: 1240px;
    margin: 0 auto;
    padding: 38px;
  }

  .platform-shell {
    gap: 30px;
  }

  .platform-header {
    padding: 38px;
  }

  .platform-title {
    font-size: 44px;
  }

  .platform-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .platform-module-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .platform-section .platform-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .platform-permission-panel {
    padding: 22px;
  }
}

@media (max-width: 520px) {
  .platform-page {
    padding: 20px;
  }

  .platform-grid,
  .platform-grid.three,
  .platform-module-grid,
  .platform-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .platform-title {
    font-size: 34px;
  }

  .platform-section {
    padding: 18px;
    border-radius: 24px;
  }

  .platform-actions,
  .platform-tabs,
  .platform-row-actions,
  .platform-permission-header {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .platform-button,
  .platform-mini-button {
    min-width: 0;
    flex: 1 1 138px;
  }
}