:root {
  --color-brand-primary: #0f2437;
  --color-brand-primary-strong: #0b1c2b;
  --color-brand-primary-rgb: 15, 36, 55;
  --color-brand-accent: #2bb3af;
  --color-brand-accent-strong: #219892;
  --color-brand-accent-rgb: 43, 179, 175;
  --color-brand-highlight-rgb: 147, 213, 0;
  --color-danger: #dc2626;
  --color-surface-base: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-surface-soft-top: #fbf9f5;
  --color-surface-soft-mid: #f7f4ef;
  --color-surface-soft-bottom: #efe7dc;
  --color-text-primary: #0f2437;
  --color-text-secondary: #516474;
  --color-text-heading: #10263b;
  --color-text-inverse: #ffffff;
  --color-text-accent-soft: #d7f0ef;
  --color-border-subtle: rgba(var(--color-brand-primary-rgb), 0.08);
  --color-border-default: rgba(var(--color-brand-primary-rgb), 0.12);
  --color-border-strong: rgba(var(--color-brand-primary-rgb), 0.24);
  --color-border-accent: rgba(var(--color-brand-accent-rgb), 0.28);
  --color-border-accent-strong: rgba(var(--color-brand-accent-rgb), 0.36);
  --color-border-accent-focus: rgba(var(--color-brand-accent-rgb), 0.48);
  --color-border-stage: rgba(var(--color-brand-primary-rgb), 0.18);
  --color-fill-accent-soft: rgba(var(--color-brand-accent-rgb), 0.12);
  --color-fill-accent-strong: rgba(var(--color-brand-accent-rgb), 0.22);
  --color-fill-primary-soft: rgba(var(--color-brand-primary-rgb), 0.03);
  --color-fill-primary-muted: rgba(var(--color-brand-primary-rgb), 0.08);
  --color-fill-primary-emphasis: rgba(var(--color-brand-primary-rgb), 0.16);
  --color-fill-accent-faint: rgba(var(--color-brand-accent-rgb), 0.03);
  --color-fill-accent-tint: rgba(var(--color-brand-accent-rgb), 0.05);
  --color-fill-accent-emphasis: rgba(var(--color-brand-accent-rgb), 0.56);
  --color-fill-accent-focus-ring: rgba(var(--color-brand-accent-rgb), 0.08);
  --color-fill-surface-strong: rgba(255, 255, 255, 0.96);
  --color-fill-surface-mid: rgba(255, 255, 255, 0.92);
  --color-fill-surface-soft: rgba(255, 255, 255, 0.82);
  --color-fill-surface-faint: rgba(255, 255, 255, 0.68);
  --color-fill-surface-stage-end: rgba(247, 244, 239, 0.92);
  --color-highlight-core-strong: rgba(var(--color-brand-highlight-rgb), 0.4);
  --color-highlight-core-mid: rgba(var(--color-brand-highlight-rgb), 0.26);
  --color-highlight-core-soft: rgba(var(--color-brand-highlight-rgb), 0.12);
  --color-highlight-core-none: rgba(var(--color-brand-highlight-rgb), 0);
  --color-highlight-aura-strong: rgba(var(--color-brand-highlight-rgb), 0.18);
  --color-highlight-aura-mid: rgba(var(--color-brand-highlight-rgb), 0.11);
  --color-highlight-aura-soft: rgba(var(--color-brand-highlight-rgb), 0.05);
  --shadow-color-soft: rgba(var(--color-brand-primary-rgb), 0.04);
  --shadow-color-brand-subtle: rgba(var(--color-brand-primary-rgb), 0.05);
  --shadow-color-default: rgba(var(--color-brand-primary-rgb), 0.12);
  --shadow-color-strong: rgba(var(--color-brand-primary-rgb), 0.14);
  --shadow-color-elevated: rgba(var(--color-brand-primary-rgb), 0.16);
  --shadow-color-overlay: rgba(var(--color-brand-primary-rgb), 0.18);
  --shadow-color-overlay-strong: rgba(var(--color-brand-primary-rgb), 0.2);
  --shadow-color-toast: rgba(var(--color-brand-primary-rgb), 0.22);
  --theme: var(--color-brand-primary);
  --theme-dark: var(--color-brand-primary-strong);
  --accent: var(--color-brand-accent);
  --accent-dark: var(--color-brand-accent-strong);
  --accent-soft: var(--color-fill-accent-soft);
  --accent-strong: var(--color-fill-accent-strong);
  --bg-top: var(--color-surface-soft-top);
  --bg-mid: var(--color-surface-soft-mid);
  --bg-bottom: var(--color-surface-soft-bottom);
  --card-bg: var(--color-surface-elevated);
  --card-border: var(--color-border-subtle);
  --text: var(--color-text-primary);
  --text-soft: var(--color-text-secondary);
  --danger: var(--color-danger);
  --shadow: var(--shadow-color-default);
  --shadow-soft: var(--color-border-subtle);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --transition: 0.2s ease;
  --mouse-x: 0.5;
  --mouse-y: 0.5;
  --pointer-x: 50vw;
  --pointer-y: 50vh;
  --trail-pointer-x: 50vw;
  --trail-pointer-y: 50vh;
  --pointer-offset-x: 0px;
  --pointer-offset-y: 0px;
  --core-scale: 0.72;
  --core-blur: 10px;
  --core-opacity: 0.42;
  --trail-scale: 1;
  --trail-stretch: 1;
  --trail-blur: 42px;
  --trail-opacity: 0.12;
  --aura-scale: 0.86;
  --aura-blur: 28px;
  --aura-opacity: 0.18;
  --aura-shift-x: 0px;
  --aura-shift-y: 0px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  min-height: 100vh;
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  overflow-x: hidden;
  background: var(--color-surface-base);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeSpeed;
}

body::before {
  content: "";
  position: fixed;
  inset: -12vh -10vw;
  z-index: 0;
  pointer-events: none;
  background: none;
  opacity: 0;
}

.background-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.background-core,
.background-aura,
.background-trail {
  position: absolute;
  top: calc(var(--pointer-y) - 11rem);
  left: calc(var(--pointer-x) - 11rem);
  width: 22rem;
  height: 22rem;
  border-radius: 50%;
  will-change: transform, opacity, filter;
}

.background-trail {
  top: calc(var(--trail-pointer-y) - 12rem);
  left: calc(var(--trail-pointer-x) - 12rem);
  width: 24rem;
  height: 24rem;
  background:
    radial-gradient(ellipse at 34% 50%, rgba(var(--color-brand-highlight-rgb), 0.18) 0%, rgba(var(--color-brand-highlight-rgb), 0.12) 18%, rgba(var(--color-brand-highlight-rgb), 0.04) 44%, rgba(var(--color-brand-highlight-rgb), 0) 72%),
    radial-gradient(circle at 62% 50%, rgba(var(--color-brand-highlight-rgb), 0.08) 0%, rgba(var(--color-brand-highlight-rgb), 0.02) 34%, rgba(var(--color-brand-highlight-rgb), 0) 64%);
  opacity: var(--trail-opacity);
  filter: blur(var(--trail-blur));
  transform: translate3d(calc(var(--pointer-offset-x) * -0.02), calc(var(--pointer-offset-y) * -0.02), 0) rotate(calc(var(--pointer-offset-x) * 0.015deg)) scaleX(calc(var(--trail-scale) * var(--trail-stretch))) scaleY(var(--trail-scale));
  transform-origin: 50% 50%;
  animation: trailPulse 6s ease-in-out infinite;
  mix-blend-mode: normal;
}

.background-core {
  background: radial-gradient(circle at 50% 50%, var(--color-highlight-core-strong) 0%, var(--color-highlight-core-mid) 18%, var(--color-highlight-core-soft) 42%, var(--color-highlight-core-none) 66%);
  opacity: var(--core-opacity);
  filter: blur(var(--core-blur));
  transform: translate3d(0, 0, 0) scale(var(--core-scale));
  animation: corePulse 4.8s ease-in-out infinite;
  mix-blend-mode: normal;
}

.background-aura {
  background: radial-gradient(circle at 50% 50%, var(--color-highlight-aura-strong) 0%, var(--color-highlight-aura-mid) 34%, var(--color-highlight-aura-soft) 56%, var(--color-highlight-core-none) 76%);
  opacity: var(--aura-opacity);
  filter: blur(var(--aura-blur));
  transform: translate3d(0, 0, 0) scale(var(--aura-scale));
  animation: auraDrift 10s ease-in-out infinite;
  mix-blend-mode: normal;
}

@keyframes corePulse {
  0%, 100% {
    opacity: calc(var(--core-opacity) - 0.04);
    filter: blur(calc(var(--core-blur) + 1px)) brightness(0.98);
  }
  45% {
    opacity: calc(var(--core-opacity) + 0.05);
    filter: blur(calc(var(--core-blur) - 1px)) brightness(1.08);
  }
  75% {
    opacity: calc(var(--core-opacity) + 0.02);
    filter: blur(var(--core-blur)) brightness(1.02);
  }
}

@keyframes auraDrift {
  0%, 100% {
    transform: translate3d(calc(var(--pointer-offset-x) * 0.01 + var(--aura-shift-x)), calc(var(--pointer-offset-y) * 0.01 + var(--aura-shift-y)), 0) scale(var(--aura-scale));
  }
  50% {
    transform: translate3d(calc(var(--pointer-offset-x) * 0.03 + var(--aura-shift-x) * 1.3 + 10px), calc(var(--pointer-offset-y) * 0.03 + var(--aura-shift-y) * 1.3 - 12px), 0) scale(calc(var(--aura-scale) + 0.12));
  }
}

@keyframes trailPulse {
  0%, 100% {
    opacity: calc(var(--trail-opacity) - 0.02);
    filter: blur(calc(var(--trail-blur) + 2px));
  }
  50% {
    opacity: calc(var(--trail-opacity) + 0.035);
    filter: blur(calc(var(--trail-blur) - 3px)) brightness(1.04);
  }
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--color-fill-primary-muted);
  font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;
  font-size: 0.92em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
}

.site-header {
  text-align: center;
  margin: 10px 0 26px;
}

.brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: var(--color-fill-primary-muted);
  color: var(--theme);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 8px 20px var(--shadow-color-brand-subtle);
}

h1 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 600;
  line-height: 1.15;
}

.site-title-text {
  position: relative;
  display: inline-block;
  padding-bottom: 6px;
  letter-spacing: 0.01em;
  color: var(--color-text-heading);
}

.site-title-text::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-fill-primary-emphasis), var(--color-fill-accent-emphasis), var(--color-fill-primary-emphasis));
}

.logo {
  display: block;
  width: auto;
  height: 72px;
  max-width: 112px;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  flex-shrink: 0;
}

.page-intro {
  width: min(720px, 100%);
  margin: 14px auto 0;
  font-size: 15px;
  color: var(--text-soft);
}

.wizard-layout {
  display: grid;
  gap: 18px;
}

.stepper {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.step-card {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-elevated);
  box-shadow: 0 12px 28px var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.step-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: var(--color-surface-elevated);
}

.step-card strong,
.step-card small {
  display: block;
}

.step-card small {
  margin-top: 2px;
  color: var(--text-soft);
}

.step-card.is-active {
  border-color: var(--color-border-accent-strong);
  background: linear-gradient(180deg, var(--color-fill-accent-tint), var(--color-surface-elevated));
}

.step-card.is-done {
  background: linear-gradient(180deg, var(--color-fill-primary-soft), var(--color-surface-elevated));
}

.step-card.is-clickable-back {
  cursor: pointer;
}

.step-card.is-clickable-back:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px var(--shadow-color-strong);
  border-color: var(--color-border-strong);
}

.step-card.is-locked-step {
  cursor: not-allowed;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--theme);
  color: var(--color-text-inverse);
  font-weight: 700;
}

.step-card.is-active .step-number {
  background: var(--accent);
}

.panel {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  box-shadow: 0 16px 36px var(--shadow-soft);
  content-visibility: auto;
  contain-intrinsic-size: 1px 320px;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-fill-surface-strong), var(--color-fill-surface-soft) 42%, var(--color-fill-surface-faint) 64%);
  pointer-events: none;
}

.panel > * {
  position: relative;
  z-index: 1;
}

.hero-panel {
  background:
    linear-gradient(140deg, var(--color-fill-accent-faint), var(--color-surface-elevated) 42%),
    var(--color-surface-elevated);
}

.panel-slim {
  padding: 20px 24px;
}

.panel-soft {
  background:
    linear-gradient(180deg, var(--color-fill-accent-faint), var(--color-surface-elevated)),
    var(--color-surface-elevated);
}

@supports ((-webkit-backdrop-filter: blur(10px)) or (backdrop-filter: blur(10px))) {
  .panel {
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  .background-trail,
  .background-core,
  .background-aura {
    animation: none;
  }
}

.panel-header {
  margin-bottom: 18px;
}

.panel-header h2 {
  margin: 0 0 8px;
  font-size: 24px;
  line-height: 1.2;
}

.panel-header p {
  margin: 0;
  color: var(--text-soft);
}

.panel-kicker {
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.identity-buttons {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.identity-btn,
.copy-btn,
.button-primary,
.button-secondary {
  font: inherit;
  cursor: pointer;
  transition:
    transform var(--transition),
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    opacity var(--transition);
}

.identity-btn {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-sm);
  background: var(--color-surface-elevated);
  color: var(--accent);
  font-weight: 700;
}

.identity-btn:hover,
.choice-card:hover,
.button-secondary:hover,
.copy-btn:hover {
  transform: translateY(-1px);
}

.identity-btn.active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--color-text-inverse);
  box-shadow: 0 10px 20px var(--color-fill-accent-strong);
}

.identity-content[hidden] {
  display: none;
}

.guide-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.guide-list li {
  padding: 14px 16px;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  background: var(--color-surface-elevated);
  box-shadow: 0 10px 22px var(--shadow-color-soft);
}

.agent-command {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, var(--theme) 0%, var(--theme-dark) 100%);
  box-shadow: 0 14px 28px var(--shadow-color-overlay);
}

.agent-text {
  flex: 1;
  margin: 0;
  color: var(--color-text-accent-soft);
  font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;
  font-size: 14px;
  word-break: break-word;
}

.agent-hint {
  margin: 12px 0 0;
  color: var(--text-soft);
}

.copy-btn,
.button-secondary {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-default);
  background: var(--color-surface-elevated);
  color: var(--theme);
  font-weight: 600;
}

.copy-btn {
  border-color: var(--color-border-accent);
  background: var(--accent);
  color: var(--color-text-inverse);
}

.button-primary {
  padding: 14px 22px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, var(--theme) 0%, var(--theme-dark) 100%);
  color: var(--color-text-inverse);
  font-weight: 700;
  box-shadow: 0 14px 28px var(--shadow-color-elevated);
}

.button-primary:hover:not(:disabled):not(.is-disabled) {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px var(--shadow-color-overlay-strong);
}

.button-primary:disabled,
.button-primary.is-disabled,
.button-secondary:disabled,
.copy-btn:disabled {
  cursor: not-allowed;
  opacity: 0.62;
  transform: none;
}

.form-label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
}

textarea,
input[type="number"],
select {
  width: 100%;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  background: var(--color-surface-elevated);
  font: inherit;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

textarea {
  min-height: 118px;
  padding: 14px 16px;
  resize: vertical;
}

input[type="number"],
select {
  padding: 12px 14px;
  text-align: center;
}

textarea:hover,
input[type="number"]:hover,
select:hover,
textarea:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--color-border-accent-focus);
  box-shadow: 0 0 0 4px var(--color-fill-accent-focus-ring);
}

.input-help {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 14px;
}

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

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

.summary-card {
  padding: 16px;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  background: var(--color-surface-elevated);
}

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

.summary-card span {
  margin-bottom: 6px;
  color: var(--text-soft);
  font-size: 13px;
}

.summary-card strong {
  font-size: 15px;
}

.summary-break {
  word-break: break-all;
}

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

.choice-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  background: var(--color-surface-elevated);
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.choice-card input {
  margin-top: 4px;
  accent-color: var(--accent);
}

.choice-card strong,
.choice-card small {
  display: block;
}

.choice-card small {
  margin-top: 4px;
  color: var(--text-soft);
}

.time-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.time-grid[hidden] {
  display: none;
}

.time-grid label {
  display: block;
  margin-bottom: 8px;
  text-align: center;
  color: var(--text-soft);
  font-size: 13px;
}

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

.actions-end {
  justify-content: flex-end;
}

.actions-stack-mobile {
  margin-top: 18px;
}

.qrcode-stage {
  position: relative;
  z-index: 4;
  min-height: clamp(720px, 78vw, 960px);
  margin: -78px 0 18px;
  padding: 0;
  overflow: hidden;
  background: transparent;
  cursor: grab;
}

.qrcode-stage.is-grabbing {
  cursor: grabbing;
}

.qrcode-placeholder,
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: clamp(720px, 78vw, 960px);
  text-align: center;
  color: var(--text-soft);
}

.receipt-stage-canvas {
  display: block;
  width: 100%;
  min-height: clamp(720px, 78vw, 960px);
  height: 100%;
  touch-action: none;
}

.qrcode-image {
  max-width: min(100%, 320px);
  height: auto;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--theme);
}

.qrcode-image-fallback {
  max-width: min(100%, 380px);
  padding: 20px;
  border-radius: 24px;
  background: #ffffff;
}

.loading-spinner {
  width: 42px;
  height: 42px;
  border: 4px solid var(--color-border-default);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.site-footer {
  margin-top: 34px;
  text-align: center;
  color: var(--text-soft);
  font-size: 14px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(120px);
  min-width: min(480px, calc(100% - 24px));
  padding: 12px 18px;
  border-radius: 14px;
  background: var(--theme);
  color: var(--color-text-inverse);
  text-align: center;
  box-shadow: 0 18px 36px var(--shadow-color-toast);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 1000;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.error {
  background: var(--danger);
}

.toast.success {
  background: var(--accent);
}

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

@media (max-width: 860px) {
  .stepper,
  .summary-grid,
  .summary-grid-wide,
  .radio-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 980px);
    padding: 18px 0 28px;
  }

  h1 {
    gap: 10px;
    font-size: clamp(18px, 5.2vw, 23px);
    line-height: 1.22;
  }

  .site-title-text {
    padding-bottom: 4px;
  }

  .panel {
    padding: 20px;
    border-radius: 18px;
  }

  .identity-buttons,
  .agent-command,
  .actions,
  .actions-stack-mobile {
    flex-direction: column;
  }

  .identity-btn,
  .copy-btn,
  .button-primary,
  .button-secondary {
    width: 100%;
  }

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

  .step-card {
    padding: 16px;
  }

  .logo {
    width: auto;
    height: 58px;
    max-width: 96px;
  }

  .qrcode-stage {
    min-height: 620px;
  }

  .qrcode-placeholder,
  .loading-state,
  .receipt-stage-canvas {
    min-height: 620px;
  }

  .toast {
    left: 10px;
    right: 10px;
    bottom: 12px;
    min-width: auto;
    transform: translateY(120px);
  }

  .toast.show {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}