:root {
  --primary: #165dff;
  --primary-hover: #4080ff;
  --brand: #00bb9e;
  --brand-soft: rgba(0, 187, 158, 0.12);
  --success: #00b42a;
  --warning: #ff7d00;
  --danger: #f53f3f;
  --bg-page: #f2f3f5;
  --bg-card: #ffffff;
  --fill-1: #f7f8fa;
  --fill-2: #f2f3f5;
  --border: #e5e6eb;
  --text-1: #1d2129;
  --text-2: #4e5969;
  --text-3: #86909c;
  --radius-sm: 4px;
  --radius-md: 8px;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text-1);
  background: var(--bg-page);
}

.install-shell {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  width: min(1120px, calc(100vw - 48px));
  height: min(820px, calc(100vh - 72px));
  min-height: 680px;
  margin: 36px auto;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(29, 33, 41, 0.06);
}

.install-aside {
  padding: 28px 20px;
  background:
    linear-gradient(180deg, rgba(22, 93, 255, 0.06), rgba(0, 187, 158, 0.04)),
    #ffffff;
  border-right: 1px solid var(--border);
  color: var(--text-1);
}

.brand {
  display: grid;
  gap: 12px;
  align-items: start;
  margin-bottom: 34px;
}

.brand-logo {
  width: 146px;
  height: 38px;
  object-fit: contain;
}

.brand-caption {
  display: grid;
  gap: 2px;
  padding-left: 10px;
  border-left: 3px solid var(--primary);
}

.brand-caption strong {
  color: var(--text-1);
  font-size: 14px;
}

.brand-caption span {
  color: var(--primary);
  font-size: 12px;
}

.steps {
  padding: 0;
  margin: 0;
  list-style: none;
}

.steps li {
  position: relative;
  padding: 10px 12px 10px 34px;
  margin-bottom: 8px;
  color: var(--text-2);
  border-radius: var(--radius-sm);
}

.steps li::before {
  position: absolute;
  left: 12px;
  color: inherit;
  content: attr(data-step);
}

.steps li.active,
.steps li.done {
  color: var(--primary);
  background: rgba(22, 93, 255, 0.08);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--primary);
}

.steps li.done {
  color: var(--brand);
  background: var(--brand-soft);
  box-shadow: inset 3px 0 0 var(--brand);
}

.install-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.page-head {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 28px 32px 18px;
  border-bottom: 1px solid var(--border);
}

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

h1 {
  margin-bottom: 6px;
  font-size: 22px;
}

h2 {
  margin-bottom: 14px;
  font-size: 16px;
}

h3 {
  margin: 18px 0 8px;
  font-size: 14px;
}

.page-head p,
.notice-box p,
.result-box p {
  color: var(--text-3);
}

.status-pill,
.tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 8px;
  color: var(--text-2);
  background: var(--fill-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.status-pill.success,
.tag.success {
  color: var(--brand);
  border-color: rgba(0, 187, 158, 0.28);
  background: var(--brand-soft);
}

.tag.warning {
  color: var(--warning);
  border-color: rgba(255, 125, 0, 0.28);
  background: rgba(255, 125, 0, 0.08);
}

.tag.error {
  color: var(--danger);
  border-color: rgba(245, 63, 63, 0.28);
  background: rgba(245, 63, 63, 0.08);
}

.panel {
  display: none;
  flex: 1 1 auto;
  min-height: 0;
  max-height: 100%;
  padding: 34px 32px 24px;
  overflow: auto;
}

.panel.active {
  display: block;
}

.panel[data-panel="0"].active {
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow: hidden;
}

.notice-box,
.form-section,
.check-row,
.result-box {
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.check-line {
  flex-shrink: 0;
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 0;
}

.agreement-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.toolbar {
  margin-bottom: 14px;
}

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

.check-row {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(160px, 1.2fr) auto;
  gap: 12px;
  align-items: center;
}

.check-row small {
  color: var(--text-3);
}

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

.form-section {
  display: grid;
  gap: 12px;
  align-content: start;
}

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

label {
  display: grid;
  gap: 6px;
  color: var(--text-2);
}

input {
  width: 100%;
  height: 34px;
  padding: 6px 10px;
  color: var(--text-1);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
}

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  padding: 0;
  accent-color: var(--brand);
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(22, 93, 255, 0.12);
}

.btn {
  height: 34px;
  padding: 0 14px;
  color: var(--text-2);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.btn.primary {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
  text-decoration: none;
}

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

.btn.ghost {
  background: var(--fill-1);
}

.progress {
  height: 8px;
  overflow: hidden;
  background: var(--fill-2);
  border-radius: 99px;
}

.progress div {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--brand), var(--primary));
  transition: width 0.25s ease;
}

.install-log {
  min-height: 360px;
  padding: 16px;
  margin: 16px 0 0;
  color: var(--text-2);
  white-space: pre-wrap;
  background: var(--fill-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.result-box {
  max-width: 460px;
  margin: 60px auto;
  text-align: center;
}

.result-icon {
  display: grid;
  width: 54px;
  height: 54px;
  margin: 0 auto 16px;
  place-items: center;
  color: #fff;
  background: var(--brand);
  border-radius: 50%;
  font-size: 28px;
}

.actions {
  flex-shrink: 0;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 18px 32px;
  border-top: 1px solid var(--border);
}

.toast-mask {
  position: fixed;
  display: none;
  inset: 0;
  z-index: 20;
  place-items: center;
  background: rgba(29, 33, 41, 0.18);
}

.toast-mask.show {
  display: grid;
}

.toast {
  max-width: min(360px, calc(100vw - 48px));
  padding: 14px 18px;
  color: #fff;
  background: rgba(29, 33, 41, 0.92);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px rgba(29, 33, 41, 0.2);
}

.toast-checks {
  display: grid;
  gap: 8px;
  min-width: 280px;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.86);
}

.toast-checks div {
  display: flex;
  gap: 16px;
  justify-content: space-between;
}

.toast-checks strong {
  font-weight: 500;
}

.toast-checks span {
  color: rgba(255, 255, 255, 0.72);
  text-align: right;
}

@media (max-width: 820px) {
  body {
    background: var(--bg-card);
  }

  .install-shell {
    grid-template-columns: 1fr;
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    border: 0;
    border-radius: 0;
  }

  .install-aside {
    position: sticky;
    top: 0;
    z-index: 5;
    min-width: 0;
    padding: 14px 16px 12px;
    overflow: hidden;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .install-main {
    width: 100%;
    min-width: 0;
  }

  .brand {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
  }

  .brand-logo {
    width: 120px;
    height: 32px;
  }

  .brand-caption {
    gap: 0;
    padding-left: 8px;
  }

  .brand-caption strong {
    font-size: 13px;
  }

  .brand-caption span {
    display: none;
  }

  .page-head {
    padding: 18px 18px 14px;
  }

  h1 {
    font-size: 20px;
  }

  .panel {
    padding: 24px 18px 16px;
  }

  .steps {
    display: flex;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    overflow: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .steps::-webkit-scrollbar {
    display: none;
  }

  .steps li {
    flex: 0 0 auto;
    min-width: 108px;
    margin-bottom: 0;
    padding: 8px 12px 8px 32px;
    white-space: nowrap;
  }

  .form-grid,
  .two-col {
    grid-template-columns: 1fr;
  }

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

  .check-line {
    align-items: flex-start;
  }

  .actions {
    position: sticky;
    bottom: 0;
    z-index: 4;
    padding: 12px 18px;
    background: rgba(255, 255, 255, 0.96);
  }

  .actions .btn {
    flex: 1;
  }
}

@media (max-width: 480px) {
  .page-head {
    display: grid;
    gap: 10px;
  }

  .status-pill {
    width: max-content;
  }

  .notice-box,
  .form-section,
  .check-row,
  .result-box {
    padding: 14px;
  }

  .install-log {
    min-height: 280px;
  }
}