/* 黑卡会员中心与收银台：深色实体卡、白色权益区和独立付款区。 */
.membership-page{--member-ink:#232a35;--member-soft:#f5f7fa;--member-rule:#e4e8ee;max-width:1040px;margin:auto}
.member-page-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:36px}
.member-page-heading h1{font-size:30px;letter-spacing:-.6px;color:var(--member-ink)}
.member-page-heading p{color:var(--muted);font-size:14px;margin-top:7px}
.member-text-link{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:10px 0;font-size:14px;color:var(--accent);white-space:nowrap}
.member-text-link svg{width:16px;height:16px}
.member-stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid var(--member-rule);border-radius:20px;overflow:hidden}
.member-card-display{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:28px;padding:46px 34px;background:var(--member-soft)}
.blackcard{isolation:isolate;position:relative;overflow:hidden;width:100%;max-width:390px;aspect-ratio:1.65;padding:25px 28px;display:flex;flex-direction:column;border-radius:15px;background:#232a35;color:#e4ebf5;border:1px solid #414a58;box-shadow:0 16px 28px -18px #17243866}
.blackcard-brand{display:flex;align-items:center;gap:9px;font-size:12px;color:#e4ebf5;position:relative;z-index:1}
.blackcard-logo{display:block;width:30px;height:30px;object-fit:contain;flex-shrink:0;border:0;border-radius:4px}
.blackcard-active{margin-left:auto;color:#d1dfed;font-size:11px;border:1px solid #67778c;border-radius:20px;padding:2px 9px}
.blackcard-name{position:relative;z-index:1;margin-top:22px;font-size:34px;line-height:1.15;font-weight:550;letter-spacing:3px}
.blackcard-footer{position:relative;z-index:1;margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:18px;font-size:11px;color:#c2cede}
.blackcard-seal{display:flex;color:#b8c8dd}.blackcard-seal svg{width:24px;height:24px;stroke-width:1.2}
.blackcard-pages{position:absolute;z-index:0;inset:0;overflow:hidden;pointer-events:none}
.blackcard-pages i{position:absolute;right:-62px;top:29px;width:165px;height:260px;border:1px solid #536174;border-radius:16px;transform:rotate(29deg)}
.blackcard-pages i:nth-child(2){right:-42px;border-color:#465368}.blackcard-pages i:nth-child(3){right:-22px;border-color:#394759}
.member-card-caption{display:flex;align-items:center;justify-content:center;gap:0;width:100%;color:#737e8e;font-size:12px}
.member-card-caption span{padding:0 18px;border-right:1px solid #d9e0e9}.member-card-caption span:last-child{border:0}
.member-offer{padding:34px 32px;background:#fff}
.member-offer-title{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.member-offer-title h2{font-size:23px;font-weight:600;color:var(--member-ink)}.member-duration{font-size:12px;color:#687181}
.member-price{display:flex;align-items:baseline;gap:12px;margin:22px 0 26px;font-family:inherit;font-size:48px;font-weight:600;letter-spacing:-1.6px;font-variant-numeric:tabular-nums;line-height:1.1;color:var(--member-ink)}
.member-price>span{font-size:12px;font-weight:400;letter-spacing:0;color:var(--muted)}
.member-benefits{display:grid;grid-template-columns:1fr 1fr;gap:24px 16px;padding-bottom:28px;border-bottom:1px solid var(--member-rule)}
.member-benefit{display:flex;align-items:center;gap:12px;min-width:0}.member-benefit>div{min-width:0}.member-benefit-image{display:block;width:48px;height:48px;object-fit:contain;flex-shrink:0}
.member-benefit strong{display:block;font-size:14px;font-weight:550;line-height:1.5}.member-benefit div>span{display:block;font-size:12px;color:var(--muted);margin-top:5px}
.member-purchase{display:flex;align-items:center;gap:16px;padding-top:25px}
.membership-page .member-primary{min-height:47px;min-width:160px;border-radius:9px;font-size:14px;font-weight:550;background:#2856cc;border:1px solid #2856cc;color:#fff;padding:12px 24px}
.membership-page .member-primary:hover{background:#214bb8}.membership-page .member-primary:disabled{opacity:1;background:#e9edf3;border-color:#e9edf3;color:#8490a1;cursor:default}
.member-purchase>span{color:var(--muted);font-size:12px}
.member-trial{display:flex;align-items:center;gap:18px;padding:25px 4px;border-bottom:1px solid var(--member-rule);margin-top:14px}
.member-trial-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#f0f4ff;color:#4266aa;flex-shrink:0}.member-trial-icon svg{width:24px;height:24px}
.member-trial>div:nth-child(2){flex:1;min-width:0}.member-trial h2{font-size:16px;font-weight:550}.member-trial p{font-size:12px;color:var(--muted);margin-top:4px}
.member-free-plan{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:24px 4px;border-bottom:1px solid var(--member-rule)}
.member-free-plan strong{display:block;font-size:14px;font-weight:550}.member-free-plan div>span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.member-free-action{display:flex;align-items:center;gap:20px;flex-shrink:0}.member-free-plan .member-free-action>span{font-size:21px;color:var(--member-ink);font-variant-numeric:tabular-nums}
.membership-page .member-free-plan .member-primary{min-height:38px;min-width:auto;background:#f0f4ff;border:0;color:#2856cc;font-size:12px;padding:9px 16px}
.membership-page .member-free-plan .member-primary:disabled{background:#f0f2f5;color:#8490a1}
.member-coverage{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:21px;font-size:12px;color:var(--muted)}.member-preview-state{color:#527b6a}
.member-other-plan{display:flex;align-items:center;gap:22px;margin-top:20px;padding:24px;border:1px solid var(--member-rule);border-radius:12px}.member-other-plan>div{flex:1}.member-other-plan h2{font-size:16px}.member-other-plan span{font-size:12px;color:var(--muted)}
/* 收银台左侧显示订单，右侧只保留当前有效的付款操作。 */
.member-checkout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid var(--member-rule);border-radius:20px;overflow:hidden}
.checkout-summary{padding:34px 36px;background:#fff}
.blackcard-compact{max-width:285px;padding:20px 23px;border-radius:12px;box-shadow:none}.blackcard-compact .blackcard-brand{font-size:11px}.blackcard-compact .blackcard-logo{width:26px;height:26px}
.blackcard-compact .blackcard-name{font-size:27px;margin-top:18px}.blackcard-compact .blackcard-footer{font-size:10px;padding-top:13px}
.checkout-product{margin-top:27px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 15px}.checkout-product h2{font-size:18px;font-weight:600}.checkout-product>span{font-size:12px;color:var(--muted)}
.checkout-details{margin:24px 0 0;font-size:13px}.checkout-details>div{display:flex;align-items:baseline;justify-content:space-between;gap:18px;margin-top:15px}.checkout-details dt{color:var(--muted);flex-shrink:0}.checkout-details dd{margin:0;text-align:right;overflow-wrap:anywhere;min-width:0}
.checkout-details .checkout-order-number{font-size:11px}.checkout-order-number dd{max-width:220px}
.checkout-total{display:flex;justify-content:space-between;align-items:baseline;gap:20px;border-top:1px solid var(--member-rule);margin-top:26px;padding-top:21px}.checkout-total>span{font-size:13px;color:var(--muted)}.checkout-total strong{font-size:34px;line-height:1.2;letter-spacing:-1px;font-variant-numeric:tabular-nums;font-weight:600}
.checkout-payment{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:35px 30px;background:var(--member-soft);min-width:0;text-align:center;gap:24px}
.checkout-state{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:#657286;border:1px solid #dce3ed;border-radius:20px;padding:5px 12px;background:#fff}.checkout-state:before{content:"";width:6px;height:6px;border-radius:50%;background:#8b9aaf}
.checkout-state.is-complete{color:#227358;border-color:#cfe4da}.checkout-state.is-complete:before{background:#227358}
.checkout-visual{display:flex;align-items:center;flex-direction:column;gap:17px;width:100%}.checkout-qr-frame{padding:14px;border:1px solid #d9e0eb;border-radius:12px;background:#fff;width:238px;max-width:100%}.checkout-qr-frame .payment-qr{margin:0;width:100%;border-radius:0;aspect-ratio:1;object-fit:contain}
.checkout-visual .checkout-hint{font-size:13px;color:#5c687a}.checkout-symbol{width:120px;height:120px;border-radius:50%;background:#e8edf4;color:#7e8ca1;display:grid;place-items:center;margin:18px 0}.checkout-symbol svg{width:44px;height:44px;stroke-width:1.4}.checkout-symbol.is-complete{background:#e1efe8;color:#227358}
.checkout-actions{display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap}.checkout-actions .secondary{background:#fff;font-size:13px;min-height:40px;border-radius:8px}.checkout-payment .form-error{max-width:100%;font-size:13px;margin:0}
.member-paywall{max-width:390px;margin:40px auto;text-align:center}.member-paywall h1{font-size:25px;margin:32px 0 24px}
/* 账户保留学习数据，把会员状态与订单整理为两个清楚的区域。 */
.member-account-overview{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid var(--member-rule);border-radius:20px;overflow:hidden;margin-bottom:36px}.member-account-card{background:var(--member-soft);padding:32px;display:flex;justify-content:center}.member-account-card .blackcard{max-width:330px}
.member-account-status{padding:34px;display:flex;flex-direction:column;justify-content:center}.member-account-status h2{font-size:24px;font-weight:600}.member-account-status>p{font-size:13px;color:var(--muted);margin-top:8px}
.member-learning-stats{display:flex;gap:40px;margin:25px 0 24px}.member-learning-stats strong{display:block;font-size:28px;line-height:1.2;font-weight:550;font-variant-numeric:tabular-nums}.member-learning-stats span{display:block;font-size:12px;color:var(--muted);margin-top:7px}
.member-account-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.member-order-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:7px}.member-order-heading h2{font-size:18px}.member-order-heading>span{font-size:12px;color:var(--muted)}
.member-order-row{display:grid;grid-template-columns:42px minmax(0,1fr) auto 16px;gap:17px;align-items:center;padding:23px 0;border-bottom:1px solid var(--member-rule)}.member-order-icon{display:grid;place-items:center;width:42px;height:42px;background:#f3f5f8;color:#526781;border-radius:11px}
.member-order-row h3{font-size:14px;font-weight:550}.member-order-row p{font-size:12px;color:var(--muted);margin-top:5px}.member-order-row strong{font-size:17px;font-weight:550;font-variant-numeric:tabular-nums}.member-order-row>svg{color:#8c98a8;width:15px}.member-orders-empty{padding:30px 0;color:var(--muted);font-size:13px;border-bottom:1px solid var(--member-rule)}
.member-account-tools{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;margin-top:30px}.member-account-tools .account-card{max-width:none;width:100%;margin:0;padding:22px;border-radius:12px}.member-account-tools .account-card p{font-size:12px;color:var(--muted);margin-top:14px}
@media(max-width:1100px){.member-stage{grid-template-columns:minmax(0,.92fr) minmax(0,1fr)}.member-card-display{padding:32px 24px}.member-offer{padding:29px 24px}.blackcard{padding:22px}.blackcard-name{font-size:30px}.member-card-caption span{padding:0 11px}.member-benefits{column-gap:12px}.member-benefit{gap:8px}.checkout-summary{padding:30px}.member-account-status{padding:28px}}
@media(max-width:760px){.member-page-heading{margin-bottom:26px}.member-page-heading h1{font-size:27px}.member-page-heading p{font-size:12px}.member-page-heading .member-text-link{font-size:12px}.member-stage,.member-checkout,.member-account-overview{grid-template-columns:1fr}.member-card-display{padding:30px 25px 23px;gap:20px}.member-card-display .blackcard{max-width:360px}.member-offer{padding:28px}.member-offer-title h2{font-size:21px}.member-benefits{gap:24px}.member-price{margin:20px 0 25px;font-size:43px}.member-purchase .member-primary{flex:1}.member-trial{gap:14px;padding:22px 2px}.member-trial h2{font-size:15px}.member-trial .member-text-link{font-size:13px}.member-free-plan{gap:12px}.member-free-plan strong{font-size:13px}.member-free-action{gap:14px}.member-other-plan{flex-wrap:wrap}.checkout-summary{padding:27px}.checkout-summary .blackcard{max-width:270px}.checkout-payment{padding:30px 24px;gap:22px}.checkout-total strong{font-size:32px}.member-account-card{padding:28px}.member-account-card .blackcard{max-width:330px}.member-account-status{padding:28px}.member-account-tools{grid-template-columns:1fr}.member-order-row{gap:12px}.member-order-row strong{font-size:15px}}
@media(max-width:360px){.member-offer{padding:23px}.member-benefits{column-gap:10px}.member-benefit strong{font-size:13px}.member-benefit div>span{font-size:12px}.member-duration{font-size:11px}.member-free-action{gap:10px}.member-free-plan .member-free-action>span{font-size:18px}.membership-page .member-free-plan .member-primary{padding:9px 12px}}
/* 手机收银台优先展示订单与付款；小卡面按可用宽度缩排，避免裁切。 */
@media(max-width:760px){
  .checkout-summary>.blackcard{display:none}.checkout-product{margin-top:0}
  .membership-page .blackcard{padding:18px 22px}
  .blackcard .blackcard-name{font-size:28px;margin-top:16px}
    .blackcard .blackcard-footer{padding-top:10px}
  .blackcard .blackcard-seal svg{width:20px;height:20px}
}
@media(max-width:360px){
  .membership-page .blackcard{padding:16px}
  .blackcard .blackcard-brand{font-size:10px;gap:7px}
  .blackcard .blackcard-logo{width:22px;height:22px}
  .blackcard .blackcard-name{font-size:24px;margin-top:12px}
    .blackcard .blackcard-footer{padding-top:8px;font-size:10px}
  .blackcard .blackcard-seal svg{width:16px;height:16px}
}

/* 实际品牌 Logo 与绘制插画直接展示，不使用单字图标或底板。 */
.sidebar .avatar{background:none;border-radius:0}.sidebar .avatar img{display:block;width:30px;height:30px;object-fit:contain}
@media(max-width:760px){.member-benefit{flex-direction:column;align-items:flex-start;gap:9px}.member-benefit-image{width:44px;height:44px}}