:root{--bg: #e9f4ff;--bg-deep: #d9ecff;--panel: rgb(255 255 255 / 72%);--panel-strong: rgb(255 255 255 / 90%);--ink: #12304f;--ink-soft: #4f6781;--ink-faint: #73879d;--line: rgb(31 92 153 / 16%);--line-strong: rgb(31 92 153 / 26%);--cyan: #38bdf8;--blue: #4f78ff;--focus: rgb(79 120 255 / 68%);--amber: #f7b94f;--success: #0bb887;--shadow-md: 0 18px 48px rgb(31 92 153 / 12%);--shadow-lg: 0 30px 90px rgb(29 87 148 / 16%);--motion-ease: cubic-bezier(.2, .8, .2, 1);font-family:Microsoft YaHei,Segoe UI,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}html,body,#root{height:100%;min-height:100%;margin:0;overflow:hidden}body,body *{-webkit-user-select:none;user-select:none}input,textarea,[data-allow-selection],[data-allow-selection] *{-webkit-user-select:text;user-select:text}button,input,textarea{font:inherit}button,a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid 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auto;height:100%;overflow:hidden}.km-reader-header{display:grid;grid-template-columns:auto 1fr auto;gap:.8rem;align-items:start;padding:1.1rem;border-bottom:1px solid var(--line)}.km-reader-title h2{font-size:clamp(1.45rem,2vw,2.2rem)}.km-meta-line{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:.45rem;color:var(--ink-soft);font-size:.9rem}.km-body{min-height:0;overflow:auto;padding:1.2rem;line-height:1.75}.km-mail-body{max-width:100%;overflow-wrap:anywhere}.km-mail-body :where(a){overflow-wrap:anywhere;word-break:break-word}.km-mail-body :where(img,video,canvas,svg){max-width:100%;height:auto}.km-mail-body :where(table){display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}.km-mail-body :where(td,th){overflow-wrap:anywhere}.km-body pre,.km-mail-body :where(pre,code){margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.km-reply{display:grid;gap:.7rem;padding:.95rem;border-top:1px solid var(--line)}.km-reply textarea{width:100%;resize:vertical;border:1px solid var(--line);border-radius:18px;padding:.85rem;background:#ffffffb8;color:var(--ink);outline:0}.km-reply textarea:focus{border-color:#4f78ff70;box-shadow:0 0 0 3px #4f78ff1f}.km-reply-actions{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:2.5rem;color:var(--ink-faint)}.km-reply-actions [role=status]{min-width:0;overflow-wrap:anywhere}.km-reply-actions button,.km-attachment-toggle,.km-icon-button{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:2.4rem;border:1px solid var(--line);border-radius:16px;background:#ffffffc2;cursor:pointer}.km-reply-actions button{padding:0 .95rem}.km-reply-actions button:disabled{opacity:.48;cursor:default}.km-icon-button{width:2.4rem}.km-mobile-back{display:none}.km-attachment-toggle{padding:0 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span{display:grid;gap:.18rem;min-width:0}.km-attachment-item strong,.km-attachment-item small{overflow-wrap:anywhere}.km-attachment-item small{color:var(--ink-faint)}@keyframes km-spin{to{rotate:360deg}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:1ms!important;scroll-behavior:auto!important;transition-duration:1ms!important}}@media(max-width:820px){.km-shell{width:min(100vw - .8rem,46rem);padding:.55rem 0}.km-topbar{grid-template-columns:1fr;border-radius:22px}.km-session{justify-items:start}.km-workbench{grid-template-columns:1fr}.km-reader-pane,.km-workbench[data-mobile-detail=true] .km-list-pane{display:none}.km-workbench[data-mobile-detail=true] .km-reader-pane{display:block}.km-mobile-back{display:inline-flex}.km-reader-header{grid-template-columns:auto 1fr auto}.km-attachment-panel{top:auto;left:0;width:100%;max-height:70%;border-top:1px solid var(--line);border-left:0;border-radius:22px 22px 0 0;translate:0 0}}