.activities-main {
  --ink: var(--ui-text);
  --muted: var(--ui-muted);
  --sand: var(--ui-accent);
  --line: var(--ui-line);
  --bg-soft: var(--ui-surface-soft);
  --glass-fill: var(--ui-accent-soft);
  --accent: var(--ui-reward);
  --activity-panel: var(--ui-surface);
  --activity-field: var(--ui-input);
  max-width: 1280px;
  width: 100%;
  min-width: 0;
  padding-bottom: 64px;
}
.theme-light .activities-main {
  --activity-panel: rgba(255, 255, 255, 0.82);
  --activity-field: rgba(255, 255, 255, 0.9);
}
.activities-main .activity-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 52px);
  margin-bottom: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse at 95% 10%, rgba(120, 217, 198, 0.17), transparent 55%),
    radial-gradient(ellipse at 90% 100%, rgba(255, 211, 109, 0.12), transparent 50%),
    var(--activity-panel);
}
.activities-main .activity-hero::after {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  top: -125px;
  right: -65px;
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow:
    0 0 0 35px rgba(120, 217, 198, 0.035),
    0 0 0 70px rgba(120, 217, 198, 0.025);
  pointer-events: none;
}
.activities-main h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, calc(1.25rem + 1.5vw), 2.875rem);
  line-height: 1.35;
  margin: 18px 0;
  letter-spacing: -0.025em;
}
.activities-main h1 span {
  color: var(--sand);
}
.activities-main h2 {
  font-size: 1.5rem;
  margin: 0 0 16px;
}
.activities-main h3 {
  font-size: 1.25rem;
  margin: 12px 0;
}
.activities-main p {
  line-height: 1.8;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.activities-main .activity-hero > p:not(.kicker) {
  max-width: 680px;
  color: var(--muted);
}
.activities-main .kicker,
.activities-main .activity-eyebrow {
  font: 0.75rem var(--font-zh-ui);
  letter-spacing: 0.13em;
  color: var(--sand);
}
.activities-main .kicker {
  margin-top: 20px;
}
.activities-main .activity-hero-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 26px;
}
.activities-main .card,
.activities-main fieldset {
  background: var(--activity-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(20px, 3vw, 30px);
  margin: 18px 0;
  min-width: 0;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.05);
}
.activities-main .activity-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.activities-main .activity-grid .card {
  margin: 0;
  display: flex;
  flex-direction: column;
  transition:
    border-color 0.2s,
    transform 0.2s;
}
.activities-main .activity-grid .card:hover {
  border-color: var(--sand);
  transform: translateY(-3px);
}
.activities-main .activity-card-heading {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.activities-main .activity-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 99px;
  padding: 5px 12px;
  background: rgba(120, 217, 198, 0.1);
  color: var(--sand);
  font: 0.75rem var(--font-zh-ui);
}
.activities-main .activity-badge[data-state='报名中'] {
  background: rgba(255, 211, 109, 0.14);
  color: var(--accent);
}
.activities-main .activity-card-description {
  color: var(--muted);
  flex: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}
.activities-main .activity-meta {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8125rem;
}
.activities-main .activity-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin: 0 0 24px;
}
.activities-main .activity-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.activities-main .activity-filters button[aria-pressed='true'] {
  background: var(--sand);
  color: var(--ui-accent-contrast);
}
.activities-main .activity-empty {
  padding: 48px 24px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
}
.activities-main label {
  display: block;
  margin: 16px 0;
  font-family: var(--font-ui);
}
.activities-main input:not([type='checkbox']):not([type='radio']),
.activities-main textarea,
.activities-main select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font: inherit;
  background: var(--activity-field);
  color: var(--ink);
  margin-top: 8px;
  color-scheme: dark;
}
.theme-light .activities-main input,
.theme-light .activities-main select,
.theme-light .activities-main textarea {
  color-scheme: light;
}
.activities-main select option {
  background: var(--bg-soft);
  color: var(--ink);
}
.activities-main input[type='checkbox'],
.activities-main input[type='radio'] {
  width: 18px;
  height: 18px;
  vertical-align: middle;
  margin-right: 10px;
  accent-color: var(--sand);
}
.activities-main textarea {
  min-height: 110px;
  resize: vertical;
}
.activities-main button,
.activities-main .button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  background: var(--action-fill, var(--sand));
  color: var(--action-foreground, var(--ui-accent-contrast));
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 11px 18px;
  font: 600 0.875rem/1.5 var(--font-zh-ui);
  cursor: pointer;
  text-decoration: none;
}
.activities-main button.secondary {
  background: var(--action-fill, var(--glass-fill));
  color: var(--action-foreground, var(--ink));
  border-color: var(--action-stroke, var(--line));
}
.activities-main button:disabled {
  opacity: 0.5;
  cursor: wait;
}
.activities-main .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.activities-main .grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 24px;
}
.activities-main .muted,
.activities-main small {
  color: var(--muted);
  line-height: 1.7;
}
.activities-main #message {
  position: sticky;
  top: 10px;
  z-index: 3;
  white-space: pre-wrap;
}
.activities-main #message:not(:empty) {
  padding: 16px 20px;
  background: var(--bg-soft);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 14px;
  margin-bottom: 20px;
}
.activities-main [hidden] {
  display: none !important;
}
.activities-main legend {
  font: 600 1rem/1.6 var(--font-zh-ui);
  padding: 0 10px;
  overflow-wrap: anywhere;
}
.activities-main .receipt {
  overflow-wrap: anywhere;
  font-family: var(--font-code);
  user-select: all;
  background: var(--activity-field);
  padding: 16px;
  border-radius: 12px;
}
.activities-main .table-wrap {
  overflow-x: auto;
}
.activities-main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.activities-main th,
.activities-main td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  white-space: pre-wrap;
  min-width: 100px;
}
.activities-main :focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.activities-main .activity-login-setting {
  padding: 20px;
  background: var(--glass-fill);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.activities-main .activity-login-setting small {
  display: block;
  margin: 8px 0 0 30px;
}
@media (max-width: 760px) {
  .activities-main .grid,
  .activities-main .activity-grid {
    grid-template-columns: 1fr;
  }
  .activities-main .activity-hero-links {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  .activities-main .activity-grid .card {
    transition: none;
  }
  .activities-main .activity-grid .card:hover {
    transform: none;
  }
}

body.activities-page .activities-main a.button {
  color: var(--action-foreground, var(--ui-accent-contrast)) !important;
}

.activities-main {
  font-size: 1rem;
  align-content: start;
}
.activities-main .activity-hero p {
  white-space: normal;
}
.activities-main .activity-hero .kicker {
  font-family: var(--font-zh-ui);
}
.activities-main .activity-eyebrow {
  font-family: var(--font-latin);
}
.activities-main #message:empty {
  display: none;
}
.activities-main h2,
.activities-main h3 {
  overflow-wrap: anywhere;
}
.activities-main .activity-card-description {
  font-weight: var(--font-zh-body-weight, 400);
}
.activities-main button,
.activities-main .button {
  min-height: 2.75rem;
}
body.activities-page .activities-main button:not(.secondary),
body.activities-page .activities-main .activity-filters button[aria-pressed='true'] {
  color: var(--action-foreground, var(--ui-accent-contrast)) !important;
}

.activities-main .activity-datetime-field {
  min-width: 0;
  margin: 16px 0;
}
.activities-main .activity-datetime-field > label {
  margin: 0 0 8px;
}
.activities-main .activity-datetime-control {
  display: flex;
  gap: 8px;
  align-items: stretch;
  flex-wrap: wrap;
}
.activities-main .activity-datetime-control input {
  flex: 1 1 12rem;
  min-width: 0;
  margin: 0;
  appearance: auto;
}
.activities-main .activity-datetime-control button {
  flex: 0 0 auto;
}
.activities-main .activity-datetime-control img {
  width: 1.15rem;
  height: 1.15rem;
}
.activities-main select {
  appearance: auto;
}
.activities-main input::-webkit-calendar-picker-indicator {
  opacity: 1;
  cursor: pointer;
}
.activities-main .activity-result-link {
  margin-top: 12px;
  background: var(--ui-surface-soft);
  border-color: var(--line);
}
body.activities-page .activities-main a.activity-result-link {
  color: var(--ui-accent) !important;
}
.activities-main #lookup {
  scroll-margin-top: 110px;
}
.activities-main #result:not(:empty) {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  background: var(--ui-accent-soft);
}
.activities-main #result[data-result='won'] {
  border-color: var(--ui-accent);
}
.activities-main #result small {
  display: block;
  margin-top: 8px;
}