/* 登录、课程方案、收银台与客户管理，延续简洁学习工作台风格。 */
.brand-mark{padding:0;overflow:hidden;background:#fff}
.brand-mark img{display:block;width:100%;height:100%;object-fit:contain}
.account-card,.checkout-card{max-width:460px;padding:30px;background:var(--surface);border:1px solid var(--line);border-radius:16px}
.account-card h2{margin-bottom:22px}
.account-tabs{display:flex;gap:24px;border-bottom:1px solid var(--line);margin-bottom:25px}
.account-tabs button{border:0;background:none;color:var(--muted);padding:0 0 12px}
.account-tabs button.selected{color:var(--accent);border-bottom:2px solid var(--accent)}
.account-card form,.admin-panel form{display:grid;gap:18px}
.account-card label,.admin-panel label{display:grid;gap:8px;font-size:12px;color:var(--muted)}
.account-card [hidden]{display:none!important}
.account-card summary{cursor:pointer;font-weight:600}
.account-card details{margin-top:24px}
.account-card form+form{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.account-card[open]>form:first-of-type{margin-top:24px}
#recovery-output{display:block;overflow-wrap:anywhere;user-select:all;font-family:monospace;font-size:16px;line-height:1.8}
.account-card input,.admin-panel input,.admin-panel select,.customer-search input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--text);font-size:14px;min-width:0}
.account-card .action,.admin-panel form>.action,.admin-panel form>.secondary{justify-self:start}
.form-error{font-size:13px;color:var(--failure);min-height:0;overflow-wrap:anywhere}
.form-error:not(:empty){margin:12px 0}
.account-summary{display:flex;flex-wrap:wrap;gap:30px 45px;padding:25px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:28px}
.account-summary>div>span{display:block;font-size:11px;color:var(--muted);margin-bottom:8px}
.account-summary strong{display:block;font-size:25px;font-weight:500}
.account-summary small{display:block;color:var(--muted);font-size:11px;margin-top:6px}
.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.pricing-card{padding:30px;background:var(--surface);border:1px solid var(--line);border-radius:16px;min-width:0}
.pricing-card.featured{border-color:var(--accent)}
.pricing-card h2{font-size:22px}
.plan-price{font-family:Georgia,"PingFang SC",serif;font-size:43px;margin:24px 0 20px;line-height:1.2}
.pricing-card ul{padding-left:18px;font-size:13px;line-height:2.4;color:var(--muted);margin:0 0 26px}
.plan-state{display:inline-block;color:var(--muted);font-size:12px;padding:10px 0}
.course-availability{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:12px;color:var(--muted);margin-top:25px}
.course-availability strong{color:var(--text);font-weight:500}
.order-list{border-top:1px solid var(--line)}
.order-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.order-row span{display:block;font-size:11px;color:var(--muted);margin-top:5px}
.order-row strong{font-size:15px;font-weight:500;white-space:nowrap}
.payment-qr{display:block;width:230px;max-width:100%;height:auto;margin:24px 0;background:#fff;border-radius:8px}
.checkout-hint,.payment-state{font-size:13px;color:var(--muted)}
.admin-tabs{display:flex;flex-wrap:wrap;gap:10px 25px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:25px;font-size:12px}
.admin-tabs a{color:var(--accent)}
.admin-two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px;align-items:start}
.admin-panel{padding:26px;border:1px solid var(--line);border-radius:14px;background:var(--surface);margin-bottom:25px;min-width:0}
.admin-panel h2{font-size:17px;margin-bottom:20px}
.admin-panel form+h2,.admin-panel form+form{border-top:1px solid var(--line);margin-top:25px;padding-top:25px}
.admin-panel .checkbox-label{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text)}
.checkbox-label input{width:16px;height:16px;margin:0;accent-color:var(--accent)}
.configuration-list{font-size:13px;line-height:2.1;padding-left:18px;color:var(--muted);margin-top:15px}
.configuration-note{font-size:11px;color:var(--muted);line-height:2;margin-top:18px}
.form-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}
.plan-editor small{font-size:11px;color:var(--muted);margin-top:-10px}
.customer-search{display:flex;gap:12px;max-width:500px;margin-bottom:25px}
.grant-list{display:grid;gap:14px;margin-top:24px;font-size:12px}
.grant-list>div{display:flex;align-items:center;justify-content:space-between;gap:12px}
.customer-progress>div{display:flex;gap:15px;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}
@media(max-width:950px){.admin-two-col{grid-template-columns:1fr;gap:0}}
@media(max-width:560px){.pricing-grid{grid-template-columns:1fr;gap:20px}.pricing-card,.account-card,.checkout-card,.admin-panel{padding:23px 19px}.plan-price{font-size:37px}.pricing-card h2{font-size:20px}.account-summary{gap:25px}.account-summary strong{font-size:23px}.account-card input,.admin-panel input,.admin-panel select,.customer-search input{font-size:16px}.admin-tabs{gap:15px;font-size:11px}.grant-list>div{flex-wrap:wrap}.form-pair{grid-template-columns:1fr}}

.refund-button{display:block;margin-top:8px;background:none;border:0;padding:0}