.system-dialog-backdrop{position:fixed;inset:0;z-index:20000;background:rgba(17,37,57,.22);display:grid;place-items:center;padding:24px}.system-dialog,.system-failure-card{background:#fff;color:#19304b;border:1px solid #dce7ef;border-radius:18px;box-shadow:0 20px 70px #1739521c;padding:32px;width:min(100%,480px);max-height:calc(100dvh - 48px);overflow:auto;font-family:Songlu Sans,Microsoft YaHei,sans-serif}.system-dialog h2{font-size:21px;line-height:1.45;margin:18px 0 12px}.system-dialog p,.system-failure p{color:#61758b;line-height:1.8;white-space:pre-line;overflow-wrap:anywhere}.system-state-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:16px;color:#008d9f;background:#edf8f9;border:1px solid #cbe7eb}.system-state-icon.danger{color:#b94c45;background:#fff2ef;border-color:#f4d2cb}.system-dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:28px;flex-wrap:wrap}.system-dialog-actions .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 20px;font-size:14px;border-radius:7px;border:1px solid #008d9f;background:#008d9f;color:white}.system-dialog-actions .secondary{color:#36546c;background:white;border-color:#d2e0eb}.system-dialog-actions .system-danger{background:#b94c45;border-color:#b94c45}.system-toast{position:fixed;right:24px;top:24px;pointer-events:none;z-index:21000;display:flex;align-items:flex-start;gap:12px;width:min(420px,calc(100vw - 48px));padding:18px;border:1px solid #efd6ba;border-radius:12px;background:#fffdf8;color:#614b29;box-shadow:0 12px 40px #1634501a}.system-toast p{font-size:13px;line-height:1.7;margin:6px 0 0}.system-toast>svg{flex:none}.system-toast button{pointer-events:auto;border:0;background:none;color:inherit;padding:0;margin-left:auto}.system-failure{display:grid;place-items:center;min-height:70dvh;padding:32px;background:#f5f8fa}.system-failure-card{width:min(560px,100%);padding:40px}.system-eyebrow{display:block;font-size:12px;color:#7790a1;margin-bottom:26px;letter-spacing:1px}.system-failure h1{font-size:26px;line-height:1.5;margin:22px 0 10px}.system-failure small{display:block;color:#7890a3;line-height:1.7}.system-reference{display:flex;align-items:center;gap:12px;border:1px solid #dce7ef;border-radius:7px;background:#f7fafc;color:#526c82;padding:10px 14px;margin-top:20px;font-size:12px;max-width:100%;overflow-wrap:anywhere}[role=alertdialog],[role=dialog][aria-modal=true]{font-family:Songlu Sans,Microsoft YaHei,sans-serif;color:#19304b}[role=alertdialog] :is(h2,h3),[role=dialog] :is(h2,h3){line-height:1.5}[role=alertdialog] button.button,[role=dialog] :is(button.button,a.button){display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:38px;line-height:1.4}[role=dialog] :is(input,select,textarea){max-width:100%}.notice{padding:13px 16px;border-radius:8px;border:1px solid #efd9b5;background:#fffbf2;color:#795721;font-size:13px;line-height:1.75;overflow-wrap:anywhere}.notice.success{border-color:#c4e5df;background:#f0faf6;color:#24735f}.notice.danger,.notice.error,.songlu-theme .composer-error{border:1px solid #efcfc9;background:#fff5f3;color:#a3443b;border-radius:8px;padding:12px 16px;font-size:13px;line-height:1.75;overflow-wrap:anywhere}.songlu-theme .composer-error button{display:inline-flex;align-items:center;justify-content:center;min-width:28px;min-height:28px;flex:none}.fault-summary{display:flex;gap:20px;margin:22px 0;flex-wrap:wrap}.fault-summary>div{flex:1 1;min-width:170px;padding:20px 24px;border:1px solid #dce7ef;border-radius:12px;background:white}.fault-summary small{color:#72879b}.fault-summary strong{display:block;font-size:28px;margin-top:12px}.fault-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.fault-list{display:grid;grid-gap:12px;gap:12px}.fault-row{background:white;border:1px solid #dce7ef;border-radius:12px;padding:22px;display:flex;justify-content:space-between;gap:24px;align-items:center}.fault-row h2{font-size:16px;margin:0 0 10px}.fault-row p{color:#73879b;margin:6px 0;font-size:13px}.fault-code{font:12px/1.5 monospace;color:#587389}.fault-badge{display:inline-flex;border-radius:5px;padding:3px 8px;background:#edf8f9;color:#008b9b;font-size:12px;margin-right:10px}.fault-badge.critical{background:#fff0ec;color:#b34c3e}.fault-empty{padding:70px 24px;text-align:center;background:white;border:1px solid #dce7ef;border-radius:12px;color:#73879b}.fault-banner{display:flex;align-items:center;gap:8px;border:1px solid #efd0c8;background:#fff6f2;color:#a34738;border-radius:7px;padding:7px 12px;font-size:12px;margin-right:20px}@media(max-width:720px){.system-dialog,.system-failure-card{padding:24px}.system-failure{padding:16px}.fault-row{align-items:flex-start;flex-direction:column}.system-failure h1{font-size:22px}}@media(prefers-reduced-motion:no-preference){.system-dialog{animation:system-dialog-in .16s ease-out}@keyframes system-dialog-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}}.system-dialog-backdrop .system-dialog{width:min(360px,100%);padding:20px;border-radius:8px;border-color:#dce7ef;box-shadow:0 8px 28px #18394f1f;font-synthesis:none}.system-dialog h2{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:500;line-height:24px;margin:0 0 10px;text-wrap:wrap;color:#202b42}.system-dialog h2 svg{flex:none;color:#008e9d}.system-dialog h2 svg.system-confirm-danger{color:#bb524b}.system-dialog p{font-size:13px;line-height:22px;margin:0;color:#667b92;font-weight:400}.system-dialog .system-dialog-actions{margin-top:20px;gap:8px}.system-dialog .system-dialog-actions .button{min-height:32px;height:32px;padding:0 12px;font-size:13px;line-height:20px;font-weight:500;border-radius:6px}.product-about-dialog:has(.problem-feedback-form)>.product-about-contact,.product-about-dialog:has(.problem-feedback-form)>.product-about-intro,.product-about-dialog:has(.problem-feedback-form)>.product-about-meta,.product-about-dialog:has(.problem-feedback-form)>.product-about-statement,.product-about-dialog:has(.problem-feedback-form)>.product-about-update,.product-about-dialog:has(.problem-feedback-form)>div[role=status]{display:none}.product-about-dialog:has(.problem-feedback-form)>.problem-feedback{margin-top:16px;padding-top:0;border-top:0}.problem-feedback{margin-top:16px;border-top:1px solid #e0e8ef;padding-top:16px;font-size:13px;line-height:21px}.problem-feedback-form{display:grid;grid-gap:10px;gap:10px;margin-top:14px}.problem-feedback-form textarea{width:100%;resize:vertical;min-height:86px;font:inherit;line-height:21px}.feedback-receipt,.problem-feedback small{display:block;color:#71839a;font-size:12px;line-height:19px}.feedback-image-picker{display:flex;align-items:center;gap:6px;color:#008e9f;cursor:pointer;position:relative;width:max-content}.feedback-image-picker input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}.feedback-image-preview{position:relative;width:100%;max-height:180px;overflow:auto;border:1px solid #dce6ee;border-radius:6px}.feedback-image-preview img{width:100%;object-fit:contain}.feedback-image-preview button{position:absolute;right:6px;top:6px;background:white;border:1px solid #dce6ee;border-radius:4px;display:grid;place-items:center;padding:4px}.problem-feedback-form>.button{justify-self:end}.feedback-pending{display:flex;gap:8px;align-items:center;padding:10px 0;border-top:1px solid #e0e8ef}.feedback-pending>span{flex:1 1}.product-about-dialog{max-height:calc(100dvh - 48px);overflow-y:auto}.feedback-detail{margin-top:12px;padding-top:12px;border-top:1px solid #e0e8ef}.feedback-detail pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;font-size:12px}.feedback-detail img{max-width:100%;max-height:400px;object-fit:contain}