/* AI 商业海报投票 — 夏日多巴胺（橙粉黄 + 青绿，对标新 Banner） */

.activity-page--ai_poster {
  --dopamine-orange: #ff8a1f;
  --dopamine-yellow: #ffd23f;
  --dopamine-pink: #ff5ea8;
  --dopamine-cyan: #3ecfff;
  --dopamine-sky: #7ae0ff;
  --dopamine-red: #e11d48;
  --dopamine-ink: #1f2937;
  --dopamine-cream: #fff9f0;
  --activity-accent: #ff8a1f;
  --activity-accent-mid: #ff5ea8;
  --activity-accent-light: #fff9f0;
  --activity-surface: rgba(255, 255, 255, 0.82);
  --oscar-gold: #ff8a1f;
  --oscar-gold-mid: #ff5ea8;
  --oscar-gold-light: #1f2937;
  --oscar-dark: #fff4e8;
  --oscar-dark-surface: #ffffff;
  --oscar-dark-elevated: #fff9f0;
}

body:has(.activity-page--ai_poster) {
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(255, 138, 31, 0.45) 0%, transparent 55%),
    radial-gradient(ellipse 70% 45% at 90% 10%, rgba(255, 94, 168, 0.35) 0%, transparent 50%),
    linear-gradient(160deg, #ffe08a 0%, #ffb347 28%, #ff8ec8 58%, #5ed4ff 100%);
  min-height: 100vh;
}

.activity-page--ai_poster .oscar-info-bar,
.activity-page--ai_poster .activity-select-card,
.activity-page--ai_poster .activity-show-header,
.activity-page--ai_poster .activity-none-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 249, 240, 0.96) 100%);
  border: 2px solid rgba(225, 29, 72, 0.35);
  box-shadow:
    0 12px 32px rgba(255, 94, 168, 0.18),
    0 4px 0 rgba(255, 138, 31, 0.25);
  color: var(--dopamine-ink);
}

.activity-page--ai_poster .oscar-section__title,
.activity-page--ai_poster .activity-select-card__title,
.activity-page--ai_poster .activity-hero-title,
.activity-page--ai_poster .activity-none-card__title,
.activity-page--ai_poster .oscar-award-section__title {
  color: var(--dopamine-red);
  text-shadow: 0 2px 0 rgba(255, 210, 63, 0.55);
  letter-spacing: 0.02em;
}

.activity-page--ai_poster .oscar-info-bar__desc,
.activity-page--ai_poster .activity-select-card__desc,
.activity-page--ai_poster .activity-none-card__message {
  color: rgba(31, 41, 55, 0.82);
}

.activity-page--ai_poster .oscar-countdown {
  background: linear-gradient(135deg, #fff7ed 0%, #ffe4f0 100%);
  border: 2px solid var(--dopamine-red);
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.12);
}

.activity-page--ai_poster .oscar-countdown__label {
  color: var(--dopamine-ink);
  font-weight: 700;
}

.activity-page--ai_poster .oscar-countdown__value {
  color: var(--dopamine-red);
  font-weight: 800;
}

.activity-page--ai_poster .oscar-vote-budget__item {
  color: rgba(31, 41, 55, 0.85);
}

.activity-page--ai_poster .oscar-vote-budget__item strong {
  color: var(--dopamine-pink);
}

/* 投票网格：竖版海报卡片更窄一些 */
.activity-page--ai_poster .activity-works-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

@media (max-width: 768px) {
  .activity-page--ai_poster .activity-works-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
  }
}

/* 投票 / 颁奖卡片 */
.activity-page--ai_poster .activity-works-grid .work-card,
.activity-page--ai_poster .oscar-show-card,
.activity-page--ai_poster .activity-show-card {
  background: #fff;
  border: 2px solid rgba(255, 138, 31, 0.35);
  box-shadow: 0 10px 24px rgba(62, 207, 255, 0.18);
  border-radius: 18px;
  overflow: hidden;
}

.activity-page--ai_poster .activity-works-grid .work-card:hover,
.activity-page--ai_poster .oscar-show-card:hover {
  border-color: var(--dopamine-pink);
  box-shadow: 0 14px 28px rgba(255, 94, 168, 0.28);
  transform: translateY(-2px);
}

/* 3:4 全图预览：contain 看全图，无需点进详情 */
.activity-page--ai_poster .work-preview--poster-34,
.activity-page--ai_poster .activity-works-grid .work-preview,
.activity-page--ai_poster .oscar-show-card .work-preview,
.activity-page--ai_poster .oscar-show-card--winner .work-preview,
.activity-page--ai_poster .oscar-show-card--nominee .work-preview {
  padding-top: 0;
  aspect-ratio: 3 / 4;
  height: auto;
  background: linear-gradient(180deg, #e8f9ff 0%, #fff4e8 100%);
}

.activity-page--ai_poster .work-thumbnail--contain,
.activity-page--ai_poster .activity-work-card--poster-inline .work-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: #fff;
}

.activity-page--ai_poster .activity-work-card--poster-inline .work-overlay {
  display: none;
}

.activity-page--ai_poster .activity-works-grid .work-info,
.activity-page--ai_poster .oscar-show-card .work-info {
  background: linear-gradient(180deg, #fff9f0 0%, #ffffff 100%);
  border-top: 2px solid rgba(255, 138, 31, 0.18);
}

.activity-page--ai_poster .activity-work-card .work-nickname {
  color: var(--dopamine-ink);
  font-weight: 700;
}

.activity-page--ai_poster .oscar-vote-chip {
  background: #fff;
  border: 2px solid rgba(225, 29, 72, 0.28);
  color: var(--dopamine-ink);
  border-radius: 999px;
}

.activity-page--ai_poster .oscar-vote-chip__count {
  color: var(--dopamine-orange);
  font-weight: 700;
}

.activity-page--ai_poster .oscar-vote-chip:hover:not(:disabled):not(.oscar-vote-chip--readonly) {
  border-color: var(--dopamine-cyan);
  background: rgba(62, 207, 255, 0.14);
}

.activity-page--ai_poster .oscar-vote-chip--voted {
  border-color: var(--dopamine-red);
  background: linear-gradient(180deg, #ffe08a 0%, #ffc2e0 100%);
  box-shadow: 0 0 0 2px rgba(225, 29, 72, 0.15);
}

.activity-page--ai_poster .oscar-vote-chip--locked {
  opacity: 0.7;
}

.activity-page--ai_poster .activity-award-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 12px 0 4px;
}

.activity-page--ai_poster .activity-award-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  background: #fff;
  border: 2px solid var(--dopamine-red);
  color: var(--dopamine-red);
  font-size: 13px;
  font-weight: 600;
}

.activity-page--ai_poster .btn-view {
  background: linear-gradient(180deg, #3ecfff 0%, #1e9fe0 100%);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 6px 14px rgba(30, 159, 224, 0.35);
}

.activity-page--ai_poster .btn-view:hover {
  background: linear-gradient(180deg, #7ae0ff 0%, #3ecfff 100%);
  color: #fff;
}

.activity-page--ai_poster .oscar-award-section {
  background: linear-gradient(145deg, #ffffff 0%, #fff4e8 100%);
  border: 2px solid rgba(255, 94, 168, 0.35);
  box-shadow: 0 10px 28px rgba(255, 138, 31, 0.15);
}

.activity-page--ai_poster .oscar-award-label {
  background: linear-gradient(180deg, #ffd23f 0%, #ff8a1f 100%);
  color: #fff;
  font-weight: 800;
  text-shadow: 0 1px 0 rgba(225, 29, 72, 0.35);
}

.activity-page--ai_poster .oscar-show-card--winner {
  border-color: var(--dopamine-pink);
  box-shadow: 0 0 0 3px rgba(255, 94, 168, 0.25);
}

.activity-page--ai_poster .activity-anon-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(62, 207, 255, 0.2);
  border: 2px solid rgba(62, 207, 255, 0.55);
  color: #0369a1;
  font-size: 13px;
  font-weight: 600;
}

/* 班级选择页 — 胶囊选项 */
.activity-page--ai_poster.activity-select-page {
  padding-bottom: 48px;
}

.activity-page--ai_poster .activity-select-card {
  margin: 24px auto 0;
  max-width: 720px;
  padding: 28px 24px 32px;
  border-radius: 24px;
}

.activity-page--ai_poster .activity-select-card__title {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
}

.activity-page--ai_poster .activity-select-card__desc {
  margin: 0 0 24px;
  line-height: 1.65;
}

.activity-page--ai_poster .activity-select-form {
  display: grid;
  gap: 18px;
}

.activity-page--ai_poster .activity-select-field > label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  color: var(--dopamine-red);
}

.activity-page--ai_poster .activity-select-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.activity-page--ai_poster .activity-select-options--stacked {
  flex-direction: column;
  align-items: stretch;
  display: flex;
}

.activity-page--ai_poster .activity-select-batch {
  padding: 12px 0;
  border-top: 2px dashed rgba(255, 138, 31, 0.35);
}

.activity-page--ai_poster .activity-select-batch:first-child {
  border-top: none;
  padding-top: 0;
}

.activity-page--ai_poster .activity-select-batch__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--dopamine-orange);
  margin-bottom: 8px;
}

.activity-page--ai_poster .activity-select-option {
  position: relative;
}

.activity-page--ai_poster .activity-select-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.activity-page--ai_poster .activity-select-option span {
  display: block;
  padding: 14px 16px;
  border-radius: 999px;
  border: 2px solid var(--dopamine-red);
  background: #fff;
  color: var(--dopamine-red);
  text-align: center;
  cursor: pointer;
  font-weight: 600;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease, color 0.15s ease;
}

.activity-page--ai_poster .activity-select-option small {
  display: block;
  font-size: 11px;
  color: rgba(31, 41, 55, 0.55);
  margin-top: 2px;
  font-weight: 500;
}

.activity-page--ai_poster .activity-select-option input:checked + span {
  border-color: transparent;
  background: linear-gradient(135deg, #3ecfff 0%, #7ae0ff 100%);
  color: #fff;
  box-shadow: 0 6px 16px rgba(62, 207, 255, 0.4);
}

.activity-page--ai_poster .activity-select-option input:checked + span small {
  color: rgba(255, 255, 255, 0.85);
}

.activity-page--ai_poster .activity-select-option span:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(255, 94, 168, 0.22);
}

.activity-page--ai_poster .activity-select-submit {
  margin-top: 8px;
  width: 100%;
  padding: 14px 18px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff8a1f 0%, #ff5ea8 55%, #e11d48 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(225, 29, 72, 0.35);
}

.activity-page--ai_poster .activity-select-submit:hover {
  filter: brightness(1.05);
}

.activity-page--ai_poster .activity-select-error {
  margin: 0 0 16px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(225, 29, 72, 0.1);
  border: 2px solid rgba(225, 29, 72, 0.4);
  color: var(--dopamine-red);
  font-weight: 600;
}

.activity-page--ai_poster .activity-instance-list__link {
  background: #fff;
  border: 2px solid rgba(255, 138, 31, 0.4);
  border-radius: 16px;
  color: var(--dopamine-ink);
}

.activity-page--ai_poster .activity-instance-list__link:hover {
  border-color: var(--dopamine-pink);
  background: #fff9f0;
}

.activity-page--ai_poster .btn-portfolio {
  background: linear-gradient(135deg, #ff8a1f, #ff5ea8);
  color: #fff;
  border-radius: 999px;
  border: none;
}