*, *::before, *::after { box-sizing: border-box; }
html { font-size: var(--fs-base); scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font-family); color: var(--color-text);
  background: var(--color-bg); line-height: 1.5;
  padding-bottom: calc(var(--contact-footer-h) + var(--safe-area-bottom));
}
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 720px; margin: 0 auto; padding: 0 16px; }

.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--color-bg-card); border-bottom: 1px solid var(--color-border);
  padding-top: env(safe-area-inset-top, 0);
}
.navbar-inner {
  display: flex; align-items: center; gap: 10px; padding: 10px 16px; max-width: 720px; margin: 0 auto;
}
.navbar-title { font-weight: 700; flex: 1; font-size: 15px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 16px; border-radius: 10px; border: 1px solid transparent;
  font-size: 14px; cursor: pointer; text-decoration: none; font-family: inherit;
  background: var(--color-bg-card); color: var(--color-text);
}
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-secondary { border-color: var(--color-border); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; }

.section-title { font-size: var(--fs-h2); margin: 0 0 8px; }
.section-desc { color: var(--color-text-secondary); font-size: 14px; margin: 0 0 16px; }
.field-hint { font-size: 12px; color: var(--color-text-secondary); }

.type-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 24px;
}
.type-card {
  display: block; padding: 20px 16px; border-radius: 16px;
  border: 2px solid var(--color-border); background: var(--color-bg-card);
  text-decoration: none; color: inherit; text-align: center; transition: transform .15s, border-color .15s;
}
.type-card:hover { transform: translateY(-2px); border-color: var(--color-primary); }
.type-card__icon { font-size: 32px; display: block; margin-bottom: 8px; }
.type-card strong { font-size: 15px; }

.feed-list { display: flex; flex-direction: column; gap: 12px; }
.feed-card {
  display: flex; gap: 12px; padding: 12px; border-radius: 14px;
  border: 1px solid var(--color-border); background: var(--color-bg-card);
  text-decoration: none; color: inherit; align-items: center;
}
.feed-card img { width: 72px; height: 72px; border-radius: 10px; object-fit: cover; flex-shrink: 0; }
.feed-card__body { flex: 1; min-width: 0; }
.feed-card__meta { font-size: 12px; color: var(--color-text-secondary); }

/* 信封揭晓 */
.envelope-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,.55); display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.envelope-overlay.envelope-done { opacity: 0; transition: opacity .4s; pointer-events: none; }
.envelope-stage { text-align: center; cursor: pointer; }
.envelope {
  width: 280px; margin: 0 auto; position: relative;
}
.envelope-body {
  height: 160px; background: var(--color-primary); border-radius: 8px;
  position: relative; overflow: hidden;
}
.envelope-flap {
  position: absolute; top: 0; left: 0; right: 0; height: 90px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  clip-path: polygon(0 0, 50% 70%, 100% 0);
  transform-origin: top center; transition: transform .8s ease;
}
.envelope-flap.open { transform: rotateX(180deg); }
.envelope-inner {
  position: absolute; bottom: 12px; left: 12px; right: 12px;
  background: #fff; border-radius: 6px; padding: 12px; opacity: 0;
  transform: translateY(20px); transition: opacity .5s, transform .5s;
  color: #333; font-size: 14px;
}
.envelope-inner.show { opacity: 1; transform: translateY(0); }
.envelope-hint { color: #fff; margin-top: 16px; font-size: 14px; }
.envelope-skip {
  position: absolute; top: 16px; right: 16px; z-index: 510;
  background: rgba(255,255,255,.9); border: none; padding: 8px 12px; border-radius: 8px; cursor: pointer;
}

.notify-hero { text-align: center; margin-bottom: 20px; }
.notify-cover { width: 100%; border-radius: 16px; aspect-ratio: 16/10; object-fit: cover; margin-bottom: 16px; }
.notify-meta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; font-size: 14px; margin: 12px 0; }
.notify-meta span { background: var(--color-bg-card); padding: 6px 12px; border-radius: 20px; border: 1px solid var(--color-border); }

.rsvp-group { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.rsvp-btn {
  flex: 1; min-width: 90px; padding: 14px 8px; border-radius: 12px;
  border: 2px solid var(--color-border); background: var(--color-bg-card);
  font-size: 15px; cursor: pointer; font-family: inherit;
}
.rsvp-btn.active { border-color: var(--color-primary); background: rgba(255,107,107,0.1); color: var(--color-primary); font-weight: 600; }

.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 13px; margin-bottom: 4px; color: var(--color-text-secondary); }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 10px; border-radius: 10px; border: 1px solid var(--color-border);
  background: var(--color-bg-card); color: var(--color-text); font-family: inherit;
}

.wizard-steps { display: flex; gap: 8px; margin-bottom: 20px; }
.wizard-step {
  flex: 1; text-align: center; padding: 8px; border-radius: 8px; font-size: 12px;
  background: var(--color-bg-card); border: 1px solid var(--color-border);
}
.wizard-step.active { border-color: var(--color-primary); color: var(--color-primary); font-weight: 600; }

.scheme-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.scheme-chip {
  padding: 12px 8px; border-radius: 12px; border: 2px solid var(--color-border);
  background: var(--color-bg-card); cursor: pointer; text-align: center; font-size: 12px;
}
.scheme-chip.active { border-color: var(--color-primary); }

.kanban { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
@media (max-width: 600px) { .kanban { grid-template-columns: 1fr; } }
.kanban-col {
  background: var(--color-bg-card); border-radius: 14px; border: 1px solid var(--color-border);
  padding: 12px; min-height: 120px;
}
.kanban-col h3 { font-size: 13px; margin: 0 0 10px; color: var(--color-text-secondary); }
.kanban-item {
  padding: 8px 10px; margin-bottom: 6px; border-radius: 8px;
  background: var(--color-bg); font-size: 13px;
}
.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.kpi-card {
  text-align: center; padding: 16px 8px; border-radius: 14px;
  background: var(--color-bg-card); border: 1px solid var(--color-border);
}
.kpi-card strong { display: block; font-size: 28px; color: var(--color-primary); }

.contact-footer {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 85;
  background: var(--color-bg-card); border-top: 1px solid var(--color-border);
  padding: 8px 12px calc(8px + var(--safe-area-bottom));
}
.contact-footer__btns { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.contact-footer__cta, .contact-footer__btn {
  padding: 8px 14px; border-radius: 8px; font-size: 13px; text-decoration: none; border: 1px solid var(--color-border);
  background: var(--color-bg-card); color: var(--color-text); cursor: pointer;
}
.contact-footer__cta { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.contact-footer__brand { text-align: center; font-size: 11px; color: var(--color-text-secondary); margin: 6px 0 0; }

.editor-page { padding: 16px; max-width: 720px; margin: 0 auto; }
.editor-hint { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 12px; }
.editor-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

.animate-in { animation: fadeUp .5s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.r161-toast {
  position: fixed; left: 50%; bottom: calc(var(--contact-footer-h) + 24px);
  transform: translateX(-50%); background: rgba(0,0,0,.85); color: #fff;
  padding: 10px 18px; border-radius: 8px; z-index: 9999; opacity: 0; transition: opacity .2s;
}
.r161-toast.show { opacity: 1; }

/* 海报预览弹层 */
.poster-modal {
  position: fixed; inset: 0; z-index: 8000; display: none; align-items: center; justify-content: center; padding: 16px;
}
.poster-modal.open { display: flex; }
.poster-modal__backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.55); }
.poster-modal__card {
  position: relative; width: min(100%, 400px); max-height: 90vh; background: var(--color-bg-card);
  border-radius: 16px; overflow: hidden; box-shadow: 0 12px 40px rgba(0,0,0,.2);
}
.poster-modal__head {
  display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--color-border);
}
.poster-modal__body { padding: 16px; text-align: center; max-height: 60vh; overflow: auto; }
.poster-modal__foot { padding: 12px 16px; border-top: 1px solid var(--color-border); }

/* 云端同步卡片 */
.cloud-sync-card {
  padding: 16px; border-radius: 14px; border: 1px solid var(--color-border); background: var(--color-bg-card);
}
.cloud-sync-status { font-size: 14px; margin: 0 0 8px; font-weight: 600; }
.cloud-sync-card input[readonly], .cloud-sync-card textarea {
  width: 100%; padding: 10px; border-radius: 8px; border: 1px solid var(--color-border);
  font-size: 13px; font-family: inherit; background: var(--color-bg);
}