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32px;background:var(--delivery-bg)}.delivery-login-form.panel{width:100%;max-width:392px;padding:26px 24px 22px;border-radius:16px;box-shadow:0 10px 34px #2439580b}.delivery-login .delivery-brand{flex-direction:column;align-items:center;gap:10px;text-align:center;margin-bottom:18px}.delivery-login .delivery-brand>svg,.delivery-login .delivery-brand img{width:42px;height:42px}.delivery-login .delivery-brand strong{font-size:20px;font-weight:650;white-space:normal}.delivery-login .delivery-brand small{display:none}.login-heading{text-align:center;margin-bottom:22px}.login-heading h1{font-size:14px;font-weight:500;color:#637898;margin:0 0 4px}.login-heading p{font-size:12px;color:#98a6b9;line-height:1.7}.delivery-login 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.muted{font-size:12px;line-height:1.8}.toast{background:#294467;border-color:#3b5b83;box-shadow:0 8px 24px #18365520}@media(max-width:850px){:root{--delivery-main-padding:23px 16px 20px;--delivery-column-gap:16px;--navigation-width:156px;--navigation-padding:8px;--navigation-item-padding:8px 6px;--navigation-font-size:12px}.delivery-header-inner{padding-right:16px;padding-left:16px}.home-download{flex-wrap:wrap;gap:12px}.home-download-heading{flex-basis:100%}.home-hardware-item{grid-template-columns:minmax(0,1fr) 80px;gap:8px 16px}.home-hardware-item h3{grid-column:1;grid-row:1}.home-hardware-item p{grid-column:1;grid-row:2}.home-hardware-image{grid-column:2;grid-row:1 / 3;width:80px;height:80px}.delivery-content .lesson-layout{grid-template-columns:1fr}.delivery-content .lesson-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:14px}}@media(max-width:640px){.delivery-header-inner{padding:7px 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no-repeat;pointer-events:none}.login-welcome-art img{display:block;width:100%;height:100%;object-fit:contain}@media(min-width:761px)and (max-aspect-ratio:7/5){:root:is([data-site-theme=yunjin],[data-site-theme=xuancai]) .login-screen .login-welcome-art{left:16px;top:auto;bottom:3vh;width:min(22vw,32vh)}}@media(max-width:760px){:root:is([data-site-theme=yunjin],[data-site-theme=xuancai]) .login-screen .login-welcome-art{left:12px;top:auto;bottom:8px;width:clamp(0px,calc((100dvh - 620px)/3),110px)}}@media(max-width:760px)and (max-height:739px){:root:is([data-site-theme=yunjin],[data-site-theme=xuancai]) .login-screen .login-welcome-art{display:none}}@media(max-width:640px){:root:is([data-site-theme=yunjin],[data-site-theme=xuancai]) .login-preview{background-position:center,88% center}}@media(forced-colors:active){:root[data-site-theme] .delivery-app .delivery-navigation{background:Canvas}:root[data-site-theme] .site-background.site-background-live{background:Canvas}.site-live-photo,:root[data-site-theme] .site-background-live .site-background-tone{display:none}:root:is([data-site-theme=yunjin],[data-site-theme=xuancai]) .login-preview{background:Canvas}:root:is([data-site-theme=yunjin],[data-site-theme=xuancai]) .login-screen .login-welcome-art{display:none}}.accounts-page,.account-list,.accounts-list-panel{min-width:0}.account-create{padding:20px;margin-bottom:24px}.account-create h2{margin:0 0 16px;font-size:var(--reading-card-title,17px)}.account-create-form .account-form-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 18px}.account-create-form .field{margin-bottom:0;min-width:0}.account-create-form .account-create-type,.account-create-form .account-form-fields>p,.account-create-form .account-form-fields>.error-box{grid-column:1 / -1}.account-create-form .account-form-fields>p{margin:0}.account-service-term p{margin:6px 0 0;font-size:var(--reading-small);line-height:1.7;color:var(--muted)}.account-create-type>.field-label{display:block;margin-bottom:8px}.account-type-options{display:flex;flex-wrap:wrap;gap:10px}.account-type-options .btn{min-width:84px}.account-type-options .btn:is(:hover,:active){transform:none}.account-create-form>.btn{margin-top:18px}.account-create-form .account-unlimited{align-self:center;margin:0}.account-create-limit .account-unlimited,.account-create-quota .account-unlimited{margin-bottom:8px}.account-create-quota{min-width:0}.account-ai-source{margin:6px 0 0;font-size:var(--reading-small,13px);line-height:1.7}.account-list>.account-type-options{margin-bottom:16px}.accounts-list-panel .accounts-scroll{max-height:560px;max-height:min(65dvh,560px);overflow:auto;border-radius:inherit;border-bottom-left-radius:0;border-bottom-right-radius:0;-webkit-overflow-scrolling:touch}.accounts-scroll:focus-visible{outline:2px solid var(--blue);outline-offset:-3px}.accounts-table{table-layout:fixed}.delivery-app .delivery-content .accounts-table :is(th,td){white-space:normal;overflow-wrap:anywhere;vertical-align:top}.delivery-app .delivery-content .accounts-table strong{font-size:var(--reading-label)}.delivery-app .delivery-content .accounts-table .account-quota-trigger{max-width:100%;padding:0;text-align:left;white-space:normal;overflow-wrap:anywhere;font-size:var(--reading-body,15px);line-height:inherit;transform:none}.account-quota-trigger:focus-visible{outline:2px solid var(--blue);outline-offset:4px;border-radius:3px}.delivery-app .delivery-content .account-quota-trigger:disabled{color:var(--muted);opacity:1}.account-quota-options{margin-bottom:18px}.accounts-table th:first-child,.accounts-table th:nth-child(2){width:14%}.account-identity-value{min-width:0;overflow-wrap:anywhere}.accounts-table th:last-child{width:29%}.delivery-app .delivery-content .accounts-table th{position:sticky;top:0;z-index:1;background:var(--surface-input)}.accounts-page .accounts-table .account-actions{min-width:0;max-width:none}.account-pagination{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:14px 16px;border-top:1px solid var(--line);font-size:var(--reading-small,13px);color:var(--muted)}.account-pagination>div{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px}.account-pagination .btn{min-height:36px}@media(max-width:1000px){.accounts-table{table-layout:auto}.accounts-table thead{display:none}.accounts-table tbody{display:block;padding:12px}.delivery-app .delivery-content .accounts-table tr{display:block;padding:11px 13px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:var(--surface-soft)}.delivery-app .delivery-content .accounts-table tr:last-child{margin-bottom:0}.delivery-app .delivery-content .accounts-table td{display:flex;align-items:flex-start;flex-wrap:wrap;gap:4px 10px;border:0;padding:5px 0;min-width:0}.delivery-app .delivery-content .accounts-table td:before{content:attr(data-label);flex:0 0 72px;color:var(--muted)}.delivery-app .delivery-content .accounts-table td[data-label=操作]{display:block}.accounts-table td[data-label=操作]:before{display:none!important}.accounts-table .account-identity-value{flex:1}.accounts-table .account-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.accounts-table .account-actions .text-btn{min-height:36px;text-align:left;white-space:normal}}@media(max-width:760px){.account-create{padding:16px}.account-create-form .account-form-fields{grid-template-columns:minmax(0,1fr)}.account-pagination{justify-content:center;padding:12px 8px}.account-pagination>div{gap:8px}.account-pagination .btn{padding-inline:10px}}@media(forced-colors:active){.account-type-options .btn[aria-pressed=true]{border:2px solid Highlight}.accounts-scroll:focus-visible{outline-color:Highlight}.account-quota-trigger:focus-visible{outline-color:Highlight}.delivery-app .delivery-content .account-quota-trigger:disabled{color:GrayText}}.operation-guide-trigger,.operation-guide-button,.operation-guide-close{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--border-strong);border-radius:8px;background:var(--surface-input);color:var(--delivery-secondary);font-size:14px;line-height:1.7}.operation-guide-trigger{flex-shrink:0;min-height:34px;padding:4px 10px;white-space:nowrap;background:var(--surface-soft)}.operation-guide-trigger:is(:hover,[aria-expanded=true]),.operation-guide-button:hover:not(:disabled){border-color:var(--blue);color:var(--blue-dark)}.operation-guide-mobile{display:none}.operation-guide-highlight{position:fixed;z-index:91;box-sizing:border-box;border:2px solid var(--blue);border-radius:12px;box-shadow:0 0 0 2px var(--surface-input);pointer-events:none;visibility:hidden}.operation-guide{position:fixed;z-index:92;box-sizing:border-box;display:flex;max-width:calc(100vw - 24px);border:1px solid var(--border-strong);border-radius:12px;background:var(--surface-input);color:var(--delivery-text);box-shadow:0 8px 30px #00000038}.operation-guide-arrow{position:absolute;width:12px;height:12px;box-sizing:border-box;background:var(--surface-input);pointer-events:none}.operation-guide[data-placement=right] .operation-guide-arrow{left:-7px;top:var(--guide-arrow-offset);border-left:1px solid var(--border-strong);border-bottom:1px solid var(--border-strong);transform:translateY(-50%) rotate(45deg)}.operation-guide[data-placement=above] .operation-guide-arrow{bottom:-7px;left:var(--guide-arrow-offset);border-right:1px solid var(--border-strong);border-bottom:1px solid var(--border-strong);transform:translate(-50%) rotate(45deg)}.operation-guide[data-placement=center] .operation-guide-arrow{display:none}.operation-guide-scroll{width:100%;min-height:0;padding:18px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none}.operation-guide-scroll::-webkit-scrollbar{display:none}.operation-guide-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:10px}.operation-guide-heading h2{margin:0;color:var(--delivery-text);font-size:18px;line-height:1.7;font-weight:650}.operation-guide-heading h2:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:3px}.operation-guide-close{flex-shrink:0;width:28px;height:28px;padding:0;border-color:transparent;background:transparent}.operation-guide-close:hover{background:var(--surface-soft);color:var(--delivery-text)}.operation-guide-detail p{margin:0;color:var(--delivery-secondary);font-size:15px;line-height:1.8}.operation-guide-detail .operation-guide-following{margin-top:10px}.operation-guide-following 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