/* ============================================================
   RIO CAPSULE — 购物车 / 结算 / 成功页 样式
   ============================================================ */

/* ---------- Page hero (small) ---------- */
.page-head { padding: 150px 0 40px; }
.page-head h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.page-head .crumb { color: var(--text-faint); font-size: 0.85rem; margin-bottom: 12px; }
.page-head .crumb a:hover { color: var(--accent-gold); }

/* ---------- Cart ---------- */
.cart-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 40px; align-items: start; padding-bottom: 80px; }
.cart-empty { text-align: center; padding: 80px 20px; border: 1px dashed var(--gold-line); border-radius: var(--radius); }
.cart-empty .icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.7; }
.cart-empty h2 { margin-bottom: 10px; }
.cart-empty p { color: var(--text-dim); margin-bottom: 28px; }
.cart__items { display: grid; gap: 16px; }
.cart-item {
  display: grid; grid-template-columns: 72px 1fr auto; gap: 18px; align-items: center;
  padding: 20px; border-radius: var(--radius); background: var(--bg-card); border: 1px solid rgba(255,255,255,0.07);
}
.cart-item__thumb { width: 72px; height: 72px; border-radius: 12px; background: radial-gradient(circle at 35% 30%, rgba(212,175,55,0.4), #0A192F 70%); border: 1px solid var(--gold-line); }
.cart-item__name { font-family: var(--font-display); font-weight: 700; margin-bottom: 4px; }
.cart-item__meta { font-size: 0.8rem; color: var(--text-faint); }
.cart-item__qty { display: flex; align-items: center; gap: 12px; }
.qty-btn { width: 30px; height: 30px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.2); display: grid; place-items: center; font-weight: 700; transition: all 0.2s; }
.qty-btn:hover { border-color: var(--accent-gold); color: var(--accent-gold); }
.cart-item__price { font-family: var(--font-display); font-weight: 800; text-align: right; }
.cart-item__remove { font-size: 0.78rem; color: var(--text-faint); display: block; margin-top: 6px; }
.cart-item__remove:hover { color: #ff6b6b; }

/* Summary */
.summary { padding: 30px; border-radius: var(--radius); background: var(--bg-card); border: 1px solid var(--gold-line); position: sticky; top: 110px; }
.summary h3 { font-size: 1.3rem; margin-bottom: 22px; }
.summary__row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 0.95rem; }
.summary__row .dim { color: var(--text-faint); }
.summary__total { display: flex; justify-content: space-between; align-items: baseline; padding: 18px 0; font-family: var(--font-display); }
.summary__total .big { font-size: 1.8rem; font-weight: 800; color: var(--accent-gold); }
.summary__save { color: #7ee787; font-size: 0.85rem; margin-bottom: 18px; }
.summary .btn { width: 100%; }
.summary__secure { text-align: center; font-size: 0.82rem; color: var(--text-faint); margin-top: 16px; }

/* ---------- Checkout ---------- */
.checkout-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items: start; padding-bottom: 80px; }
.checkout__section { padding: 30px; border-radius: var(--radius); background: var(--bg-card); border: 1px solid rgba(255,255,255,0.07); margin-bottom: 24px; }
.checkout__section h3 { font-size: 1.15rem; margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
.checkout__section h3 .step { width: 26px; height: 26px; border-radius: 50%; background: var(--accent-gold); color: #0A192F; display: grid; place-items: center; font-size: 0.85rem; font-weight: 800; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.85rem; color: var(--text-dim); }
.field input, .field select {
  padding: 13px 15px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.16); background: rgba(6,13,24,0.5); color: var(--text);
  font-family: inherit; font-size: 0.95rem; transition: border-color 0.3s;
}
.field input::placeholder { color: var(--text-faint); }
.field input:focus, .field select:focus { outline: none; border-color: var(--accent-gold); }
.radio-row { display: flex; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.radio-card {
  flex: 1; min-width: 150px; padding: 16px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.15); cursor: pointer; transition: all 0.3s; font-size: 0.9rem;
  display: flex; flex-direction: column; gap: 4px;
}
.radio-card small { color: var(--text-faint); }
.radio-card.is-selected { border-color: var(--accent-gold); background: rgba(212,175,55,0.08); }
.discreet-note { margin-top: 16px; font-size: 0.86rem; color: var(--text-dim); background: rgba(27,59,43,0.3); padding: 12px 16px; border-radius: 10px; border-left: 3px solid var(--secondary); }

/* ---------- Success ---------- */
.success { text-align: center; padding: 120px 0 80px; }
.success__icon { font-size: 4rem; margin-bottom: 20px; }
.success h1 { font-size: 2.4rem; margin-bottom: 12px; }
.success > p { color: var(--text-dim); margin-bottom: 40px; font-size: 1.05rem; }
.success__card { max-width: 520px; margin: 0 auto; padding: 34px; border-radius: var(--radius); background: var(--bg-card); border: 1px solid var(--gold-line); }
.success__row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 0.95rem; }
.success__row .dim { color: var(--text-faint); }
.success__trust { display: flex; justify-content: center; gap: 24px; margin-top: 36px; flex-wrap: wrap; }
.success__trust span { font-size: 0.88rem; color: var(--text-dim); }
.success .btn-gold { margin-top: 36px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .cart-layout, .checkout-layout { grid-template-columns: 1fr; }
  .summary { position: static; }
  .page-head { padding-top: 120px; }
}
@media (max-width: 520px) {
  .field-grid { grid-template-columns: 1fr; }
  .cart-item { grid-template-columns: 56px 1fr; }
  .cart-item__thumb { width: 56px; height: 56px; }
  .cart-item__price { grid-column: 2; text-align: left; }
}