.email-page{--mail-ink:#172c48;--mail-muted:#617086;--mail-line:#dce3eb;--mail-accent:#3f51b5;--mail-wash:#f4f6fa;color:var(--mail-ink);background:#f9fafc;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,system-ui,sans-serif;padding-bottom:64px}.email-page *{box-sizing:border-box}.email-page .mail-shell{max-width:1440px;margin:auto;padding:0 32px}.mail-breadcrumb{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--mail-muted);padding-top:28px}.mail-breadcrumb a:hover{text-decoration:underline}.mail-hero{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 0 30px}.mail-hero h1{font-size:clamp(25px,2.6vw,36px);font-weight:700;letter-spacing:-.035em;line-height:1.5;margin:0 0 8px}.mail-hero p{font-size:14px;line-height:1.9;color:var(--mail-muted);max-width:760px;margin:0}.mail-hero-link{flex-shrink:0;display:flex;align-items:center;gap:6px;font-size:13px;color:var(--mail-accent);border-bottom:1px solid #b8c1e3;padding:7px 0}.mail-practice-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:12px;padding:12px 0}.mail-practice-bar span{display:flex;align-items:center;gap:7px}.mail-practice-bar span:first-child{color:var(--mail-accent);font-weight:600}.mail-practice-bar span:last-child{color:var(--mail-muted)}.mail-workspace{display:grid;grid-template-columns:minmax(205px,.85fr) minmax(380px,1.8fr) minmax(245px,1fr);align-items:start;border:1px solid var(--mail-line);border-radius:12px;background:#fff;box-shadow:0 8px 32px #20304b06;overflow:hidden;scroll-margin-top:100px}.mail-history,.mail-composer,.mail-coach{min-width:0}.mail-history{background:#f6f8fb;padding:22px 20px;align-self:stretch;border-right:1px solid var(--mail-line)}.mail-composer{padding:22px 24px}.mail-coach{padding:22px;align-self:stretch;border-left:1px solid var(--mail-line);background:#fcfcfe}.mail-panel-heading{display:flex;gap:9px;align-items:center;justify-content:flex-start;min-height:24px;margin-bottom:20px}.mail-panel-heading h2{font-size:15px;font-weight:700;line-height:1.5;margin:0}.mail-draft-status{display:flex;gap:4px;align-items:center;color:var(--mail-muted);font-size:10px;margin-left:auto;max-width:46%;line-height:1.6}.mail-original{background:#fff;border:1px solid var(--mail-line);border-radius:8px;padding:17px 16px}.mail-person{display:flex;align-items:center;gap:10px;font-size:12px}.mail-avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#e8ecf3;color:#647594;flex-shrink:0;font-size:12px;font-weight:600}.mail-avatar.alex{background:#e8f0ed;color:#426f61}.mail-person div{min-width:0}.mail-person div>span{display:block;color:var(--mail-muted);font-size:10px;margin-top:4px}.mail-subject{font-size:12px;font-weight:600;line-height:1.65;margin:18px 0 20px;padding-bottom:12px;border-bottom:1px solid #edf0f5}.mail-letter{white-space:pre-line;line-height:1.85;font-family:Arial,system-ui,sans-serif;font-size:14px;overflow-wrap:anywhere}.mail-waiting{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--mail-muted);font-size:11px;padding:19px 0}.mail-context{font-size:12px;border-top:1px solid var(--mail-line);padding-top:16px}.mail-context summary{display:flex;align-items:center;gap:7px;color:var(--mail-accent);cursor:pointer}.mail-context p{margin:12px 0;line-height:1.9}.mail-history-note{display:flex;align-items:flex-start;gap:7px;color:var(--mail-muted);font-size:10px;line-height:1.8;margin-top:34px}.mail-history-note svg{flex-shrink:0;margin-top:2px}.mail-fields{border-top:1px solid var(--mail-line);border-bottom:1px solid var(--mail-line)}.mail-fields>div,.mail-fields>label{display:flex;align-items:center;gap:12px;min-height:47px;font-size:12px}.mail-fields>label{border-top:1px solid #edf0f5}.mail-fields>div>span:first-child,.mail-fields>label>span{min-width:40px;color:var(--mail-muted)}.mail-fields input{min-width:0;width:100%;background:transparent;border:0;outline-offset:2px;color:var(--mail-ink);font-family:Arial,system-ui,sans-serif;font-size:13px;padding:9px 0}.mail-recipient{font-family:Arial,system-ui,sans-serif;overflow-wrap:anywhere}.mail-recipient span{color:var(--mail-muted)}.mail-body-label{display:block;font-size:11px;color:var(--mail-muted);padding-top:17px}.mail-editor{display:block;width:100%;resize:vertical;min-height:335px;border:0;outline-offset:3px;background:#fff;padding:14px 0 12px;color:var(--mail-ink);font-family:Arial,system-ui,sans-serif;font-size:15px;line-height:1.9}.mail-editor::-moz-placeholder{font-size:13px;color:var(--mail-muted)}.mail-editor::placeholder{font-size:13px;color:var(--mail-muted)}.mail-editor:disabled{background:#fff;color:var(--mail-ink);opacity:1}.mail-editor-meta{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--mail-muted);padding-bottom:15px}.mail-editor-meta button{display:flex;align-items:center;gap:4px}.mail-actions{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--mail-line);padding-top:18px}.email-page button,.email-page select{font-family:inherit;cursor:pointer}.mail-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:43px;border-radius:6px;padding:10px 15px;font-size:12px;font-weight:600;line-height:1.5;border:1px solid transparent;transition:background .15s}.mail-button.primary{background:var(--mail-accent);color:#fff;border-color:var(--mail-accent)}.mail-button.primary:hover{background:#304398}.mail-button.secondary{background:#fff;border-color:#c5cee0;color:#35477e}.email-page button:disabled{opacity:.5;cursor:default}.email-page :is(a,button,input,textarea,select,summary):focus-visible{outline:2px solid #5267c5;outline-offset:4px}.mail-privacy{font-size:10px;color:var(--mail-muted);line-height:1.8;margin:13px 0 0}.mail-task-icon{width:27px;height:27px;display:grid;place-items:center;border-radius:6px;background:#eef0fb;color:var(--mail-accent)}.mail-task-text{font-size:13px;line-height:1.9;margin-bottom:18px}.mail-facts{margin:0 0 24px;padding:13px 0;border-top:1px solid var(--mail-line);border-bottom:1px solid var(--mail-line)}.mail-facts>div{display:flex;justify-content:space-between;gap:12px;padding:5px 0;font-size:11px}.mail-facts dt{color:var(--mail-muted)}.mail-facts dd{margin:0;text-align:right;font-weight:500}.mail-coach h3{font-size:12px;font-weight:700;margin:0 0 13px}.mail-checks{list-style:none;padding:0;margin:0 0 22px}.mail-checks li{display:flex;align-items:center;gap:9px;font-size:12px;line-height:1.7;padding:8px 0}.mail-checks li>span{display:flex;flex-shrink:0;color:#a0adbd}.mail-checks .met>span{color:#347362}.mail-checks .needs-work>span{color:#ad7418}.mail-progress{font-size:11px;color:var(--mail-muted)}.mail-help details{border-top:1px solid var(--mail-line);padding:14px 0}.mail-help details:last-child{border-bottom:1px solid var(--mail-line)}.mail-help summary{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:#415384;list-style:none;cursor:pointer}.mail-help summary::-webkit-details-marker{display:none}.mail-help summary svg:last-child{margin-left:auto}.mail-help details[open] summary svg:last-child{transform:rotate(180deg)}.mail-help details>p{font-size:12px;line-height:1.9;margin-top:14px}.mail-help 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del{color:#976332;text-decoration-color:#c69a6f;white-space:pre-wrap}.mail-suggestion>p{margin:7px 0}.mail-suggestion>div{background:#fff;padding:10px;display:flex;align-items:start;gap:10px;justify-content:space-between;border-radius:4px}.mail-suggestion>div>span{white-space:pre-wrap;overflow-wrap:anywhere}.mail-suggestion button{flex-shrink:0;font-size:10px;color:var(--mail-accent);border:1px solid #c5cee0;padding:4px 7px;border-radius:4px}.mail-notice{padding:10px 12px;background:#fff7e8;border:1px solid #eed7b2;border-radius:5px;font-size:12px;line-height:1.8;margin-bottom:15px}.mail-received{margin-top:27px;padding-top:24px;border-top:1px solid var(--mail-line)}.mail-state{display:flex;align-items:center;gap:7px;font-size:11px;color:#347362;margin-bottom:15px}.mail-received .mail-letter{margin:18px 0}.mail-quiz{padding:15px 0;border:0;border-top:1px solid var(--mail-line);margin-top:18px}.mail-quiz legend{font-size:13px;font-weight:600;margin-bottom:10px}.mail-quiz button{border:1px solid var(--mail-line);padding:8px 12px;margin:5px 6px 5px 0;font-size:12px;border-radius:5px}.mail-quiz .correct{background:#edf5f0;border-color:#54927d}.mail-quiz .incorrect{background:#fff4e4;border-color:#d7a85d}.mail-received>p[role=status]{font-size:12px;line-height:1.8}.mail-complete{background:#f0f7f3;padding:20px;border-radius:8px;margin-top:15px}.mail-complete>svg{color:#347362}.mail-complete h3{font-size:16px;margin:8px 0}.mail-complete p{font-size:12px;line-height:1.8}.mail-complete>div{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.mail-review{display:flex;gap:14px;padding:24px 0;color:#4e6078;border-bottom:1px solid var(--mail-line)}.mail-review>svg{margin-top:2px;flex-shrink:0}.mail-review h2{font-size:13px;font-weight:600;margin:0 0 5px}.mail-review p{font-size:12px;margin:0;line-height:1.9}.mail-review button{font-size:12px;color:var(--mail-accent);text-decoration:underline;margin:8px 0}.mail-reset-dialog{border:1px solid var(--mail-line);border-radius:12px;padding:25px;max-width:min(440px,90vw);background:#fff;color:var(--mail-ink)}.mail-reset-dialog::backdrop{background:#172c4870}.mail-reset-dialog h2{font-size:18px;font-weight:600}.mail-reset-dialog p{font-size:14px;margin:16px 0;line-height:1.8}.mail-reset-dialog>div{display:flex;gap:10px;justify-content:flex-end}.mail-guide{max-width:900px;margin:64px auto 0}.mail-guide-head{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:36px}.mail-guide h2{font-size:25px;line-height:1.6;font-weight:700;letter-spacing:-.02em}.mail-guide h3{font-size:17px;font-weight:600;line-height:1.7;margin:0 0 10px}.mail-guide p{font-size:14px;line-height:2;color:#536279}.mail-guide .mail-guide-intro{font-size:15px}.mail-guide-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;margin:32px 0}.mail-guide-example{padding:25px;background:#fff;border:1px solid var(--mail-line);border-radius:8px}.mail-guide-example .mail-letter{font-size:14px;color:var(--mail-ink)}.mail-guide ol{padding-left:22px}.mail-guide li{margin:0 0 20px;font-size:14px;line-height:1.9}.mail-guide li strong{font-size:14px}.mail-guide li p{font-size:13px;margin:6px 0}.mail-faq{margin-top:48px;border-top:1px solid var(--mail-line);padding-top:30px}.mail-faq>h2{font-size:21px;margin-bottom:18px}.mail-faq details{padding:18px 0;border-bottom:1px solid var(--mail-line)}.mail-faq summary{font-size:14px;font-weight:600;cursor:pointer}.mail-faq details p{margin-top:12px}.mail-guide-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:12px}.mail-guide-links a{color:var(--mail-accent);text-decoration:underline;text-underline-offset:4px}.mail-author{margin-top:30px;font-size:11px!important}.mail-pulse{animation:mail-pulse 1s ease-in-out infinite}@keyframes mail-pulse{50%{opacity:.3}}@media(prefers-reduced-motion:reduce){.mail-pulse{animation:none}}@media(min-width:1500px){.mail-workspace{grid-template-columns:280px minmax(450px,1fr) 310px}}@media(max-width:1100px){.email-page .mail-shell{padding:0 22px}.mail-workspace{grid-template-columns:205px minmax(320px,1fr)}.mail-coach{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;-moz-column-gap:28px;column-gap:28px;border-left:0;border-top:1px solid var(--mail-line)}.mail-coach .mail-panel-heading,.mail-task-text,.mail-facts{grid-column:1}.mail-coach>h3,.mail-checks,.mail-progress{grid-column:2}.mail-coach>h3{grid-row:1}.mail-checks{grid-row:2/5}.mail-help{grid-column:1/-1}.mail-locale{max-width:230px}.mail-coach .mail-optional{margin-bottom:0}}@media(max-width:700px){.email-page .mail-shell{padding:0 16px}.mail-hero{padding:20px 0;display:block}.mail-hero p{font-size:13px}.mail-hero-link{display:inline-flex;margin-top:12px}.mail-practice-bar{font-size:10px}.mail-practice-bar 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0}.mail-locale{margin-top:12px}.mail-editor{min-height:280px;font-size:16px}.mail-fields input{font-size:16px}.mail-actions{flex-wrap:wrap}.mail-actions .mail-button{flex:1;white-space:normal;min-width:130px}.mail-suggestion>div{display:block}.mail-suggestion button{margin-top:9px}.mail-guide{margin-top:40px}.mail-guide h2{font-size:22px}.mail-guide-head,.mail-guide-layout{display:block}.mail-guide-layout ol{margin-top:24px}.mail-privacy{font-size:11px}.mail-review p{font-size:12px}.mail-draft-status{max-width:45%}.mail-locale select{font-size:16px}}