:root{--mlt-color-primary:#155eef;--mlt-color-primary-hover:#004eeb;--mlt-color-primary-soft:#eff4ff;--mlt-color-border:#d0d5dd;--mlt-color-border-muted:#eaecf0;--mlt-color-text:#101828;--mlt-color-text-subtle:#344054;--mlt-color-muted:#667085;--mlt-color-on-primary:#ffffff;--mlt-color-surface:#ffffff;--mlt-color-surface-muted:#f9fafb;--mlt-color-surface-hover:#f2f4f7;--mlt-color-danger:#d92d20;--mlt-color-danger-soft:#fef3f2;--mlt-color-success:#039855;--mlt-color-success-soft:#ecfdf3;--mlt-color-warning:#dc6803;--mlt-color-warning-soft:#fffaeb;--mlt-color-info:#026aa2;--mlt-color-info-soft:#f0f9ff;--mlt-radius-sm:4px;--mlt-radius-md:6px;--mlt-radius-lg:8px;--mlt-focus-ring:0 0 0 3px rgb(21 94 239/20%);--mlt-font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--mlt-shadow-lg:0 20px 24px -4px rgb(16 24 40/8%),0 8px 8px -4px rgb(16 24 40/3%);--mlt-shadow-md:0 12px 16px -4px rgb(16 24 40/8%),0 4px 6px -2px rgb(16 24 40/3%);--mlt-z-overlay:1000;--mlt-color-wechat:#07c160;--mlt-color-wechat-hover:#06ad56;--mlt-color-wechat-soft:#e9f8ef;--mlt-wechat-login-width:360px;--mlt-wechat-login-qr-size:220px;--mlt-wechat-login-brand-size:40px;--mlt-wechat-login-status-dot-size:8px}.mlt-button{display:inline-flex;min-height:36px;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--mlt-radius-md);font-family:var(--mlt-font-family);font-weight:600;line-height:1;cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease,box-shadow .12s ease}.mlt-button:focus-visible,.mlt-feedback-category:focus-visible,.mlt-feedback-close:focus-visible,.mlt-feedback-input:focus-visible,.mlt-feedback-submit:focus-visible,.mlt-feedback-textarea:focus-visible,.mlt-feedback-trigger:focus-visible,.mlt-input:focus-visible,.mlt-wechat-login__button:focus-visible{outline:none;box-shadow:var(--mlt-focus-ring)}.mlt-button:disabled{cursor:not-allowed;opacity:.6}.mlt-button--sm{min-height:32px;padding:0 10px;font-size:13px}.mlt-button--md{min-height:36px;padding:0 14px;font-size:14px}.mlt-button--lg{min-height:42px;padding:0 18px;font-size:15px}.mlt-button--primary{background:var(--mlt-color-primary);color:var(--mlt-color-on-primary)}.mlt-button--primary:hover:not(:disabled){background:var(--mlt-color-primary-hover)}.mlt-button--secondary{border-color:var(--mlt-color-border);background:var(--mlt-color-surface);color:var(--mlt-color-text)}.mlt-button--secondary:hover:not(:disabled){background:var(--mlt-color-surface-muted)}.mlt-button--ghost{background:transparent;color:var(--mlt-color-text)}.mlt-button--ghost:hover:not(:disabled){background:var(--mlt-color-surface-hover)}.mlt-button__spinner{width:1em;height:1em;border:2px solid;border-right:2px solid transparent;border-radius:50%;animation:mlt-spin .7s linear infinite}.mlt-input{box-sizing:border-box;width:100%;min-height:36px;border:1px solid var(--mlt-color-border);border-radius:var(--mlt-radius-md);padding:0 12px;background:var(--mlt-color-surface);color:var(--mlt-color-text);font-family:var(--mlt-font-family);font-size:14px;line-height:20px}.mlt-input::placeholder{color:var(--mlt-color-muted)}.mlt-input[aria-invalid=true]{border-color:var(--mlt-color-danger)}.mlt-stack{display:flex;flex-direction:var(--mlt-stack-direction,column);align-items:var(--mlt-stack-align,stretch);justify-content:var(--mlt-stack-justify,flex-start);gap:var(--mlt-stack-gap,8px)}.mlt-visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;clip-path:inset(50%)}.mlt-wechat-login{width:min(100%,var(--mlt-wechat-login-width));border:1px solid var(--mlt-color-border-muted);border-radius:var(--mlt-radius-lg);padding:20px;background:var(--mlt-color-surface);color:var(--mlt-color-text);font-family:var(--mlt-font-family);box-shadow:var(--mlt-shadow-md)}.mlt-wechat-login,.mlt-wechat-login *,.mlt-wechat-login :after,.mlt-wechat-login :before{box-sizing:border-box}.mlt-wechat-login__header{display:flex;align-items:flex-start;gap:12px}.mlt-wechat-login__brand,.mlt-wechat-login__noticeIcon{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;border-radius:var(--mlt-radius-lg)}.mlt-wechat-login__brand{width:var(--mlt-wechat-login-brand-size);height:var(--mlt-wechat-login-brand-size);background:var(--mlt-color-wechat-soft);color:var(--mlt-color-wechat)}.mlt-wechat-login__heading{min-width:0}.mlt-wechat-login__title{margin:0;color:var(--mlt-color-text);font-size:16px;font-weight:650;line-height:24px}.mlt-wechat-login__subtitle{margin:2px 0 0;color:var(--mlt-color-muted);font-size:13px;line-height:20px}.mlt-wechat-login__body{min-height:260px;flex-direction:column;gap:16px;padding:22px 0 18px}.mlt-wechat-login__body,.mlt-wechat-login__qrFrame{display:flex;align-items:center;justify-content:center}.mlt-wechat-login__qrFrame{width:var(--mlt-wechat-login-qr-size);max-width:100%;aspect-ratio:1;overflow:hidden;border:1px solid var(--mlt-color-border);border-radius:var(--mlt-radius-lg);padding:10px;background:var(--mlt-color-surface-muted)}.mlt-wechat-login__qrImage{display:block;width:100%;height:100%;object-fit:contain;border-radius:var(--mlt-radius-md);background:var(--mlt-color-surface)}.mlt-wechat-login__placeholder{min-height:44px;color:var(--mlt-color-muted);font-size:13px;text-align:center}.mlt-wechat-login__button,.mlt-wechat-login__placeholder{display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:20px}.mlt-wechat-login__button{min-height:40px;border:1px solid transparent;border-radius:var(--mlt-radius-md);padding:0 16px;background:var(--mlt-color-wechat);color:var(--mlt-color-on-primary);font-family:var(--mlt-font-family);font-size:14px;font-weight:650;text-decoration:none;cursor:pointer;transition:background-color .12s ease,border-color .12s ease,box-shadow .12s ease,color .12s ease}.mlt-wechat-login__button:hover{background:var(--mlt-color-wechat-hover)}.mlt-wechat-login__button--secondary{border-color:var(--mlt-color-border);background:var(--mlt-color-surface);color:var(--mlt-color-text)}.mlt-wechat-login__button--secondary:hover{background:var(--mlt-color-surface-muted)}.mlt-wechat-login__guide{display:flex;width:100%;flex-direction:column;align-items:center;gap:16px}.mlt-wechat-login__notice{display:flex;width:100%;align-items:flex-start;gap:12px;border-radius:var(--mlt-radius-lg);padding:14px;background:var(--mlt-color-surface-muted);color:var(--mlt-color-text)}.mlt-wechat-login__noticeIcon{width:32px;height:32px;background:var(--mlt-color-info-soft);color:var(--mlt-color-info)}.mlt-wechat-login__notice small,.mlt-wechat-login__notice strong{display:block}.mlt-wechat-login__notice strong{color:var(--mlt-color-text);font-size:14px;font-weight:650;line-height:20px}.mlt-wechat-login__notice small{margin-top:2px;color:var(--mlt-color-muted);font-size:12px;line-height:18px}.mlt-wechat-login__footer{display:flex;min-width:0;align-items:center;gap:8px;border-top:1px solid var(--mlt-color-border-muted);padding-top:14px;color:var(--mlt-color-muted);font-size:13px;line-height:20px}.mlt-wechat-login__statusDot{width:var(--mlt-wechat-login-status-dot-size);height:var(--mlt-wechat-login-status-dot-size);flex:0 0 auto;border-radius:50%;background:var(--mlt-color-muted)}.mlt-wechat-login__statusMessage{min-width:0;overflow:hidden;color:var(--mlt-color-muted);text-overflow:ellipsis;white-space:nowrap}.mlt-wechat-login[data-status=creating] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=redirecting] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=waiting] .mlt-wechat-login__statusDot{background:var(--mlt-color-info)}.mlt-wechat-login[data-status=confirmed] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=oauth-ready] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=scanned] .mlt-wechat-login__statusDot{background:var(--mlt-color-warning)}.mlt-wechat-login[data-status=success] .mlt-wechat-login__statusDot{background:var(--mlt-color-success)}.mlt-wechat-login[data-status=cancelled] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=error] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=expired] .mlt-wechat-login__statusDot,.mlt-wechat-login[data-status=unsupported] .mlt-wechat-login__statusDot{background:var(--mlt-color-danger)}.mlt-wechat-login__icon{display:block;width:20px;height:20px}.mlt-wechat-login__noticeIcon .mlt-wechat-login__icon,.mlt-wechat-login__placeholder .mlt-wechat-login__icon{width:18px;height:18px}.mlt-wechat-login__noticeIcon[data-icon=spinner] .mlt-wechat-login__icon,.mlt-wechat-login__placeholder .mlt-wechat-login__icon{animation:mlt-spin .9s linear infinite}.mlt-feedback{font-family:var(--mlt-font-family)}.mlt-feedback *,.mlt-feedback :after,.mlt-feedback :before{box-sizing:border-box}.mlt-feedback-trigger{display:inline-flex;width:56px;height:56px;align-items:center;justify-content:center;border:1px solid var(--mlt-color-border);border-radius:50%;background:var(--mlt-color-surface);color:var(--mlt-color-muted);box-shadow:var(--mlt-shadow-md);cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease,box-shadow .12s ease,transform .12s ease}.mlt-feedback-trigger:hover{border-color:var(--mlt-color-primary);color:var(--mlt-color-primary);box-shadow:var(--mlt-shadow-lg);transform:translateY(-1px)}.mlt-feedback-trigger--floating{position:fixed;right:max(16px,calc((100vw - 1360px) / 2));bottom:24px;z-index:var(--mlt-z-overlay)}.mlt-feedback-overlay{position:fixed;inset:0;z-index:var(--mlt-z-overlay);display:flex;align-items:center;justify-content:center;padding:16px;background:rgb(16 24 40/42%);backdrop-filter:blur(4px)}.mlt-feedback-dialog{width:min(100%,512px);max-height:min(90vh,720px);overflow:hidden;border:1px solid var(--mlt-color-border-muted);border-radius:var(--mlt-radius-lg);background:var(--mlt-color-surface);color:var(--mlt-color-text);box-shadow:var(--mlt-shadow-lg);animation:mlt-feedback-scale-in .14s ease-out}.mlt-feedback-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;border-bottom:1px solid var(--mlt-color-border-muted)}.mlt-feedback-heading{display:flex;min-width:0;align-items:center;gap:12px}.mlt-feedback-heading__icon,.mlt-feedback-success__icon{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;border-radius:var(--mlt-radius-lg)}.mlt-feedback-heading__icon{width:36px;height:36px;background:var(--mlt-color-primary-soft);color:var(--mlt-color-primary)}.mlt-feedback-success__title,.mlt-feedback-title{margin:0;color:var(--mlt-color-text);font-size:16px;font-weight:650;line-height:24px}.mlt-feedback-subtitle,.mlt-feedback-success__description{margin:0;color:var(--mlt-color-muted);font-size:13px;line-height:20px}.mlt-feedback-close{display:inline-flex;width:32px;height:32px;flex:0 0 auto;align-items:center;justify-content:center;border:0;border-radius:var(--mlt-radius-md);background:transparent;color:var(--mlt-color-muted);cursor:pointer;transition:background-color .12s ease,color .12s ease}.mlt-feedback-close:hover{background:var(--mlt-color-surface-muted);color:var(--mlt-color-text)}.mlt-feedback-body{display:flex;max-height:calc(90vh - 140px);flex-direction:column;gap:20px;overflow-y:auto;padding:20px 24px}.mlt-feedback-fieldset{min-width:0;margin:0;padding:0;border:0}.mlt-feedback-label{display:block;margin:0 0 8px;color:var(--mlt-color-text-subtle);font-size:14px;font-weight:600;line-height:20px}.mlt-feedback-required{margin-left:4px;color:var(--mlt-color-danger)}.mlt-feedback-optional{margin-left:4px;color:var(--mlt-color-muted);font-weight:400}.mlt-feedback-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.mlt-feedback-category{display:flex;min-height:88px;flex-direction:column;gap:6px;border:1px solid var(--mlt-color-border);border-radius:var(--mlt-radius-lg);padding:12px;background:var(--mlt-color-surface);color:var(--mlt-color-text);text-align:left;cursor:pointer;transition:background-color .12s ease,border-color .12s ease,box-shadow .12s ease}.mlt-feedback-category:hover{border-color:var(--mlt-color-muted);background:var(--mlt-color-surface-muted)}.mlt-feedback-category[data-selected=true]{border-color:var(--mlt-color-primary);background:var(--mlt-color-primary-soft);box-shadow:0 0 0 1px rgb(21 94 239/12%)}.mlt-feedback-category__header{display:flex;min-width:0;align-items:center;gap:8px}.mlt-feedback-category__icon{display:inline-flex;width:18px;height:18px;flex:0 0 auto;align-items:center;justify-content:center;color:var(--mlt-color-muted)}.mlt-feedback-category[data-tone=danger] .mlt-feedback-category__icon{color:var(--mlt-color-danger)}.mlt-feedback-category[data-tone=warning] .mlt-feedback-category__icon{color:var(--mlt-color-warning)}.mlt-feedback-category[data-tone=info] .mlt-feedback-category__icon{color:var(--mlt-color-info)}.mlt-feedback-category__label{overflow-wrap:anywhere;color:var(--mlt-color-text);font-size:14px;font-weight:600;line-height:20px}.mlt-feedback-category__description{color:var(--mlt-color-muted);font-size:12px;line-height:18px}.mlt-feedback-field{display:flex;min-width:0;flex-direction:column}.mlt-feedback-input,.mlt-feedback-textarea{width:100%;border:1px solid var(--mlt-color-border);border-radius:var(--mlt-radius-lg);background:var(--mlt-color-surface);color:var(--mlt-color-text);font-family:var(--mlt-font-family);font-size:14px;line-height:20px;transition:border-color .12s ease,box-shadow .12s ease}.mlt-feedback-input::placeholder,.mlt-feedback-textarea::placeholder{color:var(--mlt-color-muted)}.mlt-feedback-textarea{min-height:120px;resize:vertical;padding:12px}.mlt-feedback-input{min-height:40px;padding:0 12px}.mlt-feedback-input[aria-invalid=true],.mlt-feedback-textarea[aria-invalid=true]{border-color:var(--mlt-color-danger)}.mlt-feedback-fieldHelp{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-top:6px;color:var(--mlt-color-muted);font-size:12px;line-height:18px}.mlt-feedback-error{color:var(--mlt-color-danger)}.mlt-feedback-counter{flex:0 0 auto;color:var(--mlt-color-muted);font-weight:600}.mlt-feedback-counter--success{color:var(--mlt-color-success)}.mlt-feedback-counter--danger{color:var(--mlt-color-danger)}.mlt-feedback-page{display:flex;min-width:0;align-items:center;gap:8px;border-radius:var(--mlt-radius-md);padding:8px 10px;background:var(--mlt-color-surface-muted);color:var(--mlt-color-muted);font-size:12px;line-height:18px}.mlt-feedback-page .mlt-feedback-icon{flex:0 0 auto}.mlt-feedback-page span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mlt-feedback-footer{padding:16px 24px;border-top:1px solid var(--mlt-color-border-muted);background:rgb(249 250 251/72%)}.mlt-feedback-submit{display:inline-flex;width:100%;min-height:40px;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--mlt-radius-lg);padding:0 16px;background:var(--mlt-color-primary);color:var(--mlt-color-on-primary);font-family:var(--mlt-font-family);font-size:14px;font-weight:650;line-height:20px;cursor:pointer;transition:background-color .12s ease,box-shadow .12s ease}.mlt-feedback-submit:hover:not(:disabled){background:var(--mlt-color-primary-hover);box-shadow:0 8px 16px rgb(21 94 239/18%)}.mlt-feedback-submit:disabled{cursor:not-allowed;opacity:.58}.mlt-feedback-submit__spinner{width:16px;height:16px;border:2px solid;border-right:2px solid transparent;border-radius:50%;animation:mlt-spin .7s linear infinite}.mlt-feedback-success{display:flex;min-height:240px;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;text-align:center}.mlt-feedback-success__icon{width:64px;height:64px;margin-bottom:16px;border-radius:50%;background:var(--mlt-color-success-soft);color:var(--mlt-color-success)}.mlt-feedback-success__title{margin-bottom:8px}.mlt-feedback-icon{display:block;width:20px;height:20px}.mlt-feedback-category__icon .mlt-feedback-icon,.mlt-feedback-close .mlt-feedback-icon,.mlt-feedback-page .mlt-feedback-icon,.mlt-feedback-submit .mlt-feedback-icon{width:16px;height:16px}@media (max-width:480px){.mlt-wechat-login{padding:16px}.mlt-wechat-login__body{min-height:236px}.mlt-wechat-login__qrFrame{width:min(100%,var(--mlt-wechat-login-qr-size))}.mlt-feedback-overlay{align-items:flex-end;padding:0}.mlt-feedback-dialog{width:100%;max-height:92vh;border-right:0;border-bottom:0;border-left:0;border-radius:var(--mlt-radius-lg) var(--mlt-radius-lg) 0 0}.mlt-feedback-body,.mlt-feedback-footer,.mlt-feedback-header{padding-right:16px;padding-left:16px}.mlt-feedback-categories{grid-template-columns:1fr}}@keyframes mlt-spin{to{transform:rotate(1turn)}}@keyframes mlt-feedback-scale-in{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}