:root {
  color-scheme: light;
  --page: #f6f8f4;
  --surface: #ffffff;
  --ink: #29312c;
  --muted: #727b75;
  --line: #dce2dc;
  --accent: #58b52f;
  --accent-hover: #4da228;
  --danger: #ca4d47;
  --danger-soft: #fff0ee;
  --success-soft: #edf8e8;
  --shadow: 0 18px 50px rgba(41, 69, 47, 0.08);
  --font: "Avenir Next", Avenir, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
}

body {
  margin: 0;
  min-width: 20rem;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

.page-shell {
  width: min(calc(100% - 2rem), 42rem);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4rem) 0 5rem;
}

.form-illustration {
  position: relative;
  width: min(100%, 23.4375rem);
  aspect-ratio: 375 / 264;
  margin: 0 auto clamp(0.75rem, 2.5vw, 1.25rem);
  overflow: hidden;
}

.form-illustration-background,
.form-illustration-main {
  position: absolute;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
}

.form-illustration-background {
  inset: 0;
  width: 100%;
  height: 100%;
}

.form-illustration-main {
  left: 50%;
  bottom: 4.5%;
  width: 46.93%;
  height: auto;
  transform: translateX(-50%);
  filter: drop-shadow(0 0.7rem 0.7rem rgba(63, 34, 236, 0.12));
  transition: opacity 180ms ease, transform 220ms ease;
}

.form-illustration-main.is-switching {
  opacity: 0;
  transform: translateX(-50%) scale(0.96);
}

.form-illustration-main.is-success {
  bottom: 1.5%;
  width: 53%;
  filter: drop-shadow(0 0.75rem 0.8rem rgba(41, 69, 47, 0.13));
}

.activation-form {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.activation-form.is-complete {
  text-align: center;
}

.activation-result:focus {
  outline: none;
}

.result-mark {
  display: grid;
  width: 3.2rem;
  height: 3.2rem;
  margin: 0 auto 1rem;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--accent-hover);
  font-size: 1.45rem;
  font-weight: 900;
}

.result-kicker {
  margin: 0;
  color: var(--accent-hover);
  font-size: 0.82rem;
  font-weight: 800;
}

.activation-result h1 {
  margin: 0.35rem 0 1.45rem;
  color: var(--ink);
  font-size: clamp(1.45rem, 5vw, 1.85rem);
  line-height: 1.2;
}

.result-details {
  margin: 0;
  border-top: 1px solid var(--line);
  text-align: left;
}

.result-details > div {
  display: grid;
  grid-template-columns: minmax(5rem, 0.36fr) minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.result-details dt {
  color: #7f8982;
  font-size: 0.86rem;
  font-weight: 700;
}

.result-details dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 800;
  text-align: right;
}

.result-note {
  margin: 1rem 0 0;
  color: #667069;
  font-size: 0.82rem;
  line-height: 1.55;
}

.form-logo {
  width: 8.0625rem;
  height: auto;
  margin: 0 auto clamp(1.25rem, 4vw, 1.75rem);
}

.card-check-status {
  display: none;
  min-height: 5rem;
  place-content: center;
  align-items: center;
  gap: 0.65rem;
  color: #667069;
  font-size: 0.9rem;
  font-weight: 750;
}

.card-check-status .button-loader {
  display: block;
  border-color: rgba(88, 181, 47, 0.24);
  border-top-color: var(--accent);
}

.is-card-checking .card-check-status {
  display: grid;
  grid-auto-flow: column;
}

.is-card-checking .activation-form .form-field,
.is-card-checking .activation-form .submit-button,
.is-card-checking .activation-form .inline-status,
.is-card-checking .guide-heading,
.is-card-checking .guide-gallery {
  display: none;
}

.is-card-invalid .activation-form > :not(.inline-status),
.is-card-invalid .guide-heading,
.is-card-invalid .guide-gallery {
  display: none;
}

.is-card-invalid .inline-status {
  margin-top: 0;
}

.is-activation-success .guide-heading,
.is-activation-success .guide-gallery {
  display: none !important;
}

.form-field + .form-field {
  margin-top: 1.25rem;
}

.form-field label {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 0.92rem;
  font-weight: 750;
}

.input-shell {
  display: grid;
  width: 100%;
  min-height: 3.65rem;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  padding: 0 1rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: #fafbf9;
  transition: border-color 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.input-shell > svg {
  width: 1.25rem;
  color: #7f8982;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.form-field input {
  min-width: 0;
  height: 3.55rem;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 550;
}

.form-field input::placeholder {
  color: #99a19b;
}

.input-shell:focus-within {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(88, 181, 47, 0.12);
}

.input-shell:has(input[aria-invalid="true"]) {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(202, 77, 71, 0.1);
}

.field-error {
  min-height: 0;
  margin: 0;
  color: var(--danger);
  font-size: 0.78rem;
  font-weight: 650;
}

.field-error:not(:empty) {
  margin-top: 0.4rem;
}

.submit-button {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 3.7rem;
  margin-top: 1.75rem;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  place-content: center;
  align-items: center;
  gap: 0.6rem;
  border: 0;
  border-radius: 0.9rem;
  background: var(--accent);
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.12), 0 9px 20px rgba(88, 181, 47, 0.18);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  transition: background-color 180ms ease, transform 180ms ease;
}

.submit-button:hover {
  background: var(--accent-hover);
}

.submit-button:active {
  transform: translateY(1px) scale(0.99);
}

.submit-button:focus-visible {
  outline: 3px solid rgba(88, 181, 47, 0.32);
  outline-offset: 3px;
}

.submit-button[disabled] {
  cursor: wait;
  opacity: 0.76;
}

.submit-button.is-loading .button-label {
  opacity: 1;
}

.button-loader {
  display: none;
  order: -1;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.42);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.submit-button.is-loading .button-loader {
  display: block;
}

.inline-status {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 0.75rem;
  background: var(--success-soft);
}

.inline-status[hidden] {
  display: none;
}

.inline-status.is-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.inline-status.is-success {
  background: var(--success-soft);
  color: var(--accent-hover);
}

.inline-status strong {
  display: block;
  font-size: 0.86rem;
}

.inline-status p {
  margin: 0.2rem 0 0;
  color: var(--ink);
  font-size: 0.82rem;
  line-height: 1.55;
}

.guide-heading {
  margin-top: clamp(2.5rem, 7vw, 4rem);
  margin-bottom: 0.85rem;
  padding: 0 clamp(0.65rem, 2vw, 0.9rem);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-size: clamp(1.05rem, 3.5vw, 1.2rem);
  font-weight: 800;
  line-height: 1.3;
}

.guide-heading-dot {
  flex: 0 0 auto;
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: #ff4b4b;
}

.guide-gallery {
  margin-top: 0;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.guide-gallery-viewport {
  position: relative;
  height: min(75vw, 31.5rem);
  overflow: hidden;
  outline: 0;
  background: #ffffff;
  cursor: grab;
  touch-action: pan-y;
  transition: height 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

.guide-gallery-viewport.is-portrait {
  height: min(110vw, 46.2rem);
}

.guide-gallery-viewport:active {
  cursor: grabbing;
}

.guide-gallery-viewport:focus-visible {
  box-shadow: inset 0 0 0 3px rgba(88, 181, 47, 0.32);
}

.guide-gallery-slide {
  position: absolute;
  inset: 0;
  display: grid;
  margin: 0;
  place-items: center;
  opacity: 0;
  transform: scale(0.985);
  transition: opacity 300ms ease, transform 360ms ease;
  pointer-events: none;
}

.guide-gallery-slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.guide-gallery-slide img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 100%;
  user-select: none;
}

.guide-gallery-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 2.75rem;
  border-top: 1px solid #edf0ed;
}

.guide-gallery-dot {
  width: 0.55rem;
  height: 0.55rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #cbd1cc;
  cursor: pointer;
  transition: width 200ms ease, border-radius 200ms ease, background-color 200ms ease;
}

.guide-gallery-dot.is-active {
  width: 1.45rem;
  border-radius: 999px;
  background: var(--accent);
}

.guide-gallery-dot:focus-visible {
  outline: 3px solid rgba(88, 181, 47, 0.28);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

@media (max-width: 480px) {
  .page-shell {
    width: min(calc(100% - 1.25rem), 42rem);
    padding-top: 1rem;
  }

  .form-illustration {
    margin-bottom: 0.5rem;
  }

  .activation-form {
    padding: 1rem;
    border-radius: 1.1rem;
  }

  .form-field input {
    font-size: 0.94rem;
  }
}

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

  .guide-gallery-viewport {
    transition: none !important;
  }
}