@font-face{font-family:Host;src:url('/assets/host-grotesk.woff2') format('woff2');font-display:swap}
:root{color-scheme:dark;--bg:#08090a;--panel:#101214;--line:#282b2e;--muted:#9ba0a5;--green:#8bd6a8;--text:#f1f2f3}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Host,-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;font-size:14px;line-height:1.7}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}a{color:inherit;text-decoration:none}a:hover{color:#fff}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--green);outline-offset:4px}[hidden]{display:none!important}.header{height:88px;border-bottom:1px solid #1e2022;display:flex;justify-content:space-between;align-items:center;max-width:1248px;margin:auto;padding:0 40px}.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600;letter-spacing:-.5px}.header>div{display:flex;gap:24px;align-items:center}.preview-tag{color:var(--green);font-size:12px;border:1px solid #304337;border-radius:30px;padding:4px 12px;background:#102018}.subtle,.back{color:var(--muted);font-size:13px}.shell{max-width:1110px;padding:40px 36px 0;margin:auto}.back{display:inline-block;margin-bottom:34px}.page-heading .eyebrow{margin-bottom:14px}.eyebrow{font-size:11px;letter-spacing:1.7px;color:var(--muted);margin:0;font-weight:500}h1,h2,h3,p{margin-top:0}h1{font-size:36px;letter-spacing:-1.2px;line-height:1.35;margin-bottom:14px}.page-heading>p:last-child{color:var(--muted);font-size:15px;margin-bottom:0}.steps{display:flex;list-style:none;padding:0;margin:30px 0;gap:28px;color:#72777c}.steps li{display:flex;align-items:center;gap:8px;font-size:12px}.steps li span{width:25px;height:25px;border:1px solid #373b3f;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-size:10px}.steps li.active{color:var(--text)}.steps li.active span{border-color:var(--green);color:var(--green)}.steps li.complete span{background:var(--green);color:#102016;border-color:var(--green)}.checkout-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.summary,.payment-card{border:1px solid var(--line);border-radius:18px;padding:32px;background:var(--panel)}.summary{background:linear-gradient(140deg,#15181b,#0e1012)}.product-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.small-tag{font-size:11px;border:1px solid #3a3d40;color:#c4c8cc;border-radius:5px;padding:2px 8px}.summary h2{font-size:32px;line-height:1.4;letter-spacing:-.8px;margin-bottom:15px}.intro{color:var(--muted);font-size:14px;line-height:1.9;margin-bottom:26px}.benefits{padding:0;list-style:none;margin:0 0 30px}.benefits li{margin-bottom:11px;font-size:13px;color:#d5d8da}.benefits li:before{content:'✓';margin-right:12px;color:var(--green)}.total{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:26px}.total>span{color:var(--muted);font-size:12px}.total strong{font-size:31px;font-weight:500;line-height:1.2;letter-spacing:-1px}.total small{font-size:17px;color:var(--muted);letter-spacing:0}.summary-note{font-size:12px;color:#7e858b;line-height:1.9;margin:14px 0 26px}.teacher{border-top:1px solid var(--line);padding-top:23px;display:flex;align-items:center;gap:12px}.teacher>div{display:flex;flex-direction:column}.teacher strong{font-size:13px;font-weight:500}.teacher span{color:var(--muted);font-size:11px}.text-button{border:0;background:none;padding:0;color:var(--muted);font-size:12px;margin-left:auto}.text-button:hover{color:var(--text)}.mode-note{display:flex;gap:11px;padding:13px 14px;border:1px solid #2b4135;background:#112018;border-radius:8px;margin-bottom:26px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex:none;margin-top:7px}.mode-note strong{font-size:12px;color:var(--green);font-weight:500}.mode-note p{font-size:11px;color:#98b2a1;margin:2px 0 0;line-height:1.65}.payment-card h2{font-size:22px;line-height:1.4;margin:8px 0 8px;letter-spacing:-.3px}.card-intro{font-size:12px;color:var(--muted);margin-bottom:23px}.payment-card label:not(.consent){display:block;font-size:12px;margin:16px 0 8px;color:#c3c6ca}.payment-card input:not([type=checkbox]){width:100%;border:1px solid #383d42;border-radius:7px;padding:11px 13px;background:#0a0c0e;color:var(--text);outline-offset:1px;font-size:13px}.payment-card input::placeholder{color:#646c73}.consent{display:flex;gap:10px;font-size:11px;color:var(--muted);line-height:1.9;margin:24px 0 22px;align-items:flex-start}.consent input{margin:5px 0 0;accent-color:var(--green);width:14px;height:14px;flex:none}.consent a{color:#d8dcdf;text-decoration:underline;text-underline-offset:3px}.primary,.secondary{width:100%;border:1px solid transparent;border-radius:7px;min-height:44px;padding:10px 14px;font-weight:500}.primary{background:#eceeef;color:#101214}.primary:hover{background:#fff}.secondary{background:none;color:#d7dadd;border-color:#393e43;font-size:12px}.secondary:hover{border-color:#6a737b}.fine-print{font-size:11px;color:#737b82;text-align:center;margin:12px 0 0}.message{font-size:12px;color:#e7b18b;line-height:1.8;margin:12px 0 0;overflow-wrap:anywhere}.message:empty{display:none}.next-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:43px;padding:28px 0;border-top:1px solid #22272b}.next-notes span{font-size:11px;color:#68737a;letter-spacing:1px}.next-notes h3{font-size:13px;font-weight:500;margin:9px 0 6px}.next-notes p{font-size:12px;color:#7e858b;margin:0}.footer{display:flex;justify-content:space-between;gap:18px;border-top:1px solid #22272b;margin-top:24px;padding:24px 0;color:#737a80;font-size:11px}.qr-area{background:#fff;border-radius:10px;width:202px;margin:22px auto 14px;padding:10px;text-align:center}.qr-area img{display:block;width:182px;height:182px}.qr-area small{display:block;font-size:10px;color:#57645e;margin-top:2px}.pay-amount{font-size:28px;font-weight:500;text-align:center;letter-spacing:-.6px;margin:18px 0 3px}.pay-caption{text-align:center;color:var(--muted);font-size:12px}.countdown{text-align:center;font-size:11px;color:#7f8c84;margin:12px 0 21px}.order-meta{font-size:11px;color:var(--muted);margin:18px 0}.order-meta div{display:flex;justify-content:space-between;gap:16px;align-items:baseline;margin:5px 0}.order-meta dd{margin:0;overflow-wrap:anywhere;text-align:right;color:#d2d7da;font-family:Host,monospace;font-size:10px}.demo-controls{padding-top:20px;margin-top:20px;border-top:1px dashed #3b4440}.demo-controls>p{font-size:10px;letter-spacing:.5px;color:#7e9286;margin-bottom:12px}.demo-buttons{display:flex;gap:8px}.demo-buttons button{flex:1}.demo-controls .primary{background:#9ad6ae;color:#13261a;font-size:12px}.success-icon{width:54px;height:54px;border-radius:50%;border:1px solid #3e5a49;color:var(--green);display:flex;align-items:center;justify-content:center;font-size:26px;margin:8px 0 22px;background:#13261b}.terminal-note{color:var(--muted);font-size:13px;line-height:1.9}.success-actions{display:flex;flex-direction:column;gap:10px;margin-top:23px}.new-order{display:block;margin:20px auto 0}.cancel-link{margin:17px auto 0;display:block;font-size:11px}.order-receipt{padding:15px;border:1px solid #30383e;border-radius:8px;font-size:12px;color:#d0d8dc;margin-top:20px;overflow-wrap:anywhere}.order-receipt strong{display:block;font-size:10px;color:var(--muted);margin-bottom:7px;font-weight:400}dialog{border:1px solid #454c52;border-radius:14px;background:#14171a;color:var(--text);padding:36px;width:min(400px,calc(100% - 32px));text-align:center}dialog::backdrop{background:#000b;backdrop-filter:blur(7px)}dialog h2{margin:14px 0 16px;font-size:24px}dialog>p:not(.eyebrow){color:var(--muted);font-size:13px}dialog>img{display:block;margin:22px auto;background:#fff;padding:5px;border-radius:6px}.dialog-close{position:absolute;top:12px;right:16px;border:0;background:none;color:var(--muted);font-size:24px}.orders-shell{max-width:1200px}.dashboard-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:26px}.dashboard-heading .secondary{width:auto}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0}.metric{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:22px}.metric p{color:var(--muted);font-size:12px;margin:0 0 10px}.metric strong{font-size:27px;font-weight:500}.metric small{font-size:11px;color:#7d8982}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}.orders-table{width:100%;border-collapse:collapse;font-size:12px;white-space:nowrap}.orders-table th{color:var(--muted);font-weight:400;background:#121517}.orders-table th,.orders-table td{padding:15px 17px;text-align:left;border-bottom:1px solid #262b30}.orders-table tr:last-child td{border-bottom:0}.order-number{font-family:Host,monospace;font-size:10px;color:#97a0a6}.state-tag{padding:3px 8px;border:1px solid #3a4147;border-radius:30px;font-size:10px}.state-tag.paid{color:var(--green);background:#102019;border-color:#314c3b}.state-tag.pending{color:#ead296;border-color:#514a38}.empty{color:var(--muted);padding:40px!important;text-align:center!important}.orders-note{font-size:12px;color:var(--muted);margin-top:20px}
@media(min-width:1250px){.shell{padding-top:45px}.payment-card{min-height:562px}}
@media(max-width:760px){.header{height:72px;padding:0 22px}.header>div{gap:12px}.header .subtle{font-size:11px}.preview-tag{font-size:10px;padding:3px 8px}.brand{font-size:18px}.shell{padding:25px 20px 0}.back{margin-bottom:25px}h1{font-size:29px}.page-heading>p:last-child{font-size:13px}.steps{gap:20px;margin:26px 0;font-size:11px}.checkout-grid{grid-template-columns:1fr;gap:20px}.summary,.payment-card{padding:25px}.summary h2{font-size:28px}.next-notes{gap:20px;margin-top:32px}.next-notes p{font-size:11px}.footer{flex-wrap:wrap;font-size:10px}.metrics{gap:10px}.metric{padding:16px}.metric strong{font-size:22px}.dashboard-heading{align-items:flex-start}.dashboard-heading .secondary{white-space:nowrap}.teacher .text-button{font-size:11px}.orders-table th,.orders-table td{padding:12px}.order-meta div{flex-wrap:wrap;gap:3px 10px}}
@media(max-width:380px){.header{padding:0 16px}.header .subtle{display:none}.shell{padding:24px 16px 0}.summary,.payment-card{padding:22px}.steps{gap:14px}.steps li{font-size:11px;gap:6px}.next-notes{grid-template-columns:1fr}.next-notes>div{display:grid;grid-template-columns:25px 1fr;column-gap:12px}.next-notes h3{margin:0 0 6px}.next-notes p{grid-column:2}.teacher span{font-size:10px}.total strong{font-size:28px}.metrics{grid-template-columns:1fr}.metric{display:flex;align-items:center;justify-content:space-between}.metric p{margin:0}.dashboard-heading{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.my-orders{margin-top:32px;border-top:1px solid var(--line);padding-top:26px}.my-orders h3{margin:0;font-size:16px}.my-orders .dashboard-heading{margin-bottom:10px}.mine-row{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid #22272b;font-size:11px}.mine-row span{overflow-wrap:anywhere;color:var(--muted)}.mine-row strong{font-weight:400;white-space:nowrap;color:var(--green)}.qr-pending{padding:25px 10px;border:1px dashed var(--line);text-align:center;margin-bottom:18px}.brand small{font-size:11px;color:var(--muted);font-weight:400;margin-left:10px}.heading-actions{display:flex;align-items:center;gap:10px}.heading-actions .secondary{display:inline-block;text-align:center}.commerce-metrics{grid-template-columns:repeat(4,1fr)}.order-panel{margin-top:28px}.order-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.order-toolbar form{display:flex;gap:10px;align-items:center;flex:1}.order-toolbar input{margin:0;max-width:340px;height:42px}.order-toolbar .secondary{width:auto;white-space:nowrap;height:42px;padding:0 22px}.order-toolbar select{font:inherit;color:var(--text);background:#131619;border:1px solid #3b4145;border-radius:8px;height:42px;padding:0 14px}.pagination{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);padding:18px 0}.pagination button{margin-left:20px}.commerce-bottom{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}.config-panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px}.config-panel h2{font-size:19px;margin-top:13px}.config-panel .card-intro{font-size:12px}.config-row{display:flex;justify-content:space-between;gap:10px;font-size:12px;border-bottom:1px solid #23282d;padding:10px 0}.config-missing{color:#b49d73;font-size:11px}.config-ready{color:var(--green);font-size:11px}.product-price{font-size:28px}.product-price span{font-size:12px;color:var(--muted)}.admin-notes{padding-left:18px;color:var(--muted);font-size:12px;line-height:2.1}.order-dialog{width:min(720px,calc(100% - 32px));max-height:86vh;overflow-y:auto;text-align:left;padding:34px}.order-dialog h2{font-size:24px;margin:12px 0 24px}.order-dialog h3{font-size:15px;margin:0 0 15px}.order-dialog .secondary{margin:10px 0}.detail-summary{display:flex;justify-content:space-between;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:20px}.detail-meta{margin:22px 0}.detail-meta div{display:grid;grid-template-columns:105px 1fr;font-size:12px;margin:9px 0;gap:14px}.detail-meta dt{color:var(--muted)}.detail-meta dd{margin:0;overflow-wrap:anywhere}.detail-form{border-top:1px solid var(--line);margin-top:24px;padding-top:24px}.detail-form label{display:block;margin-bottom:8px;font-size:12px;color:var(--muted)}.detail-form input,.detail-form textarea{margin-bottom:16px}.detail-form textarea{width:100%;resize:vertical;background:#0d1012;border:1px solid #343b40;color:var(--text);border-radius:8px;padding:12px;font:inherit;font-size:12px}.detail-form .fine-print{margin:10px 0}.timeline-title{border-top:1px solid var(--line);margin-top:24px!important;padding-top:24px}.timeline{padding-left:18px;margin:0}.timeline li{margin-bottom:18px;font-size:12px;padding-left:7px}.timeline strong{font-weight:500}.timeline small{display:block;color:#7f888f;font-size:10px;margin-top:3px}.timeline p{font-size:11px;color:var(--muted);margin:6px 0 0;overflow-wrap:anywhere}.terms-shell{max-width:800px}.terms-panel{padding:32px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.terms-panel h2{font-size:18px;margin:26px 0 12px}.terms-panel p,.terms-panel li{color:var(--muted);font-size:13px;line-height:1.9}
@media(max-width:850px){.commerce-metrics{grid-template-columns:repeat(2,1fr)}.commerce-bottom{grid-template-columns:1fr}.order-toolbar{align-items:flex-start}.order-toolbar form{flex-wrap:wrap}.order-toolbar input{max-width:none;width:100%}.heading-actions{flex-wrap:wrap}.brand small{display:none}}
@media(max-width:480px){.header .subtle{display:none}.header .brand{white-space:nowrap}.order-toolbar{display:block}.order-toolbar>button{margin-top:10px}.dashboard-heading{flex-wrap:wrap}.heading-actions{width:100%}.config-panel{padding:22px}.order-dialog{padding:25px 20px}.detail-meta div{grid-template-columns:78px 1fr;gap:8px}.detail-summary{flex-wrap:wrap}.mine-row{flex-wrap:wrap;gap:6px}.commerce-metrics .metric{display:block}.commerce-metrics .metric p{font-size:10px;margin-bottom:7px}.commerce-metrics .metric strong{font-size:22px}.terms-panel{padding:22px}}
.order-toolbar input{background:#111518;border:1px solid #353c42;color:var(--text);border-radius:8px;padding:10px 13px}.order-toolbar input::placeholder{color:#717b84}.order-toolbar input:focus{border-color:#7b9d89;outline:none}

/* Phone login */
.account-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px;font-size:12px;color:var(--muted)}
.account-bar strong{color:var(--text);font-weight:500}.account-bar span{margin-right:auto}
.phone-field{display:flex;align-items:center;border:1px solid #383d42;background:#0a0c0e;border-radius:7px}
.phone-field>span{padding-left:13px;color:var(--muted);font-size:13px}
.payment-card .phone-field input{border:0;background:none;min-width:0;font-size:16px}
.payment-card #login-code{font-size:18px;letter-spacing:3px}
.payment-card #login-code::placeholder{font-size:13px;letter-spacing:0}
.sms-note{font-size:11px;color:var(--muted);margin:10px 0 18px;line-height:1.8}
.demo-code{padding:10px;border:1px dashed #526c59;color:var(--green);font-size:12px}
.payment-card .consent a{color:var(--green)}
@media(max-width:760px){.checkout-grid>.payment-card{grid-row:1}.header .subtle{display:inline;font-size:11px}.header>div{gap:10px}}

/* Verified buyer contact, visible only in the authenticated order workspace. */
.phone-contact{display:inline-flex;align-items:center;gap:12px;white-space:nowrap;font-variant-numeric:tabular-nums}.phone-contact strong{font-weight:500}.phone-contact .copy-phone{margin:0;color:var(--green);font-size:11px}.order-wechat{color:var(--muted);font-size:11px;margin-top:4px}