#tg-letter-tool{--ink:#1f2937;--muted:#6b7280;--line:#d9d9d9;--paper:#f7f4ee;--accent:#2f6f8f;--warn:#b42318;--ok:#137333;width:100vw;max-width:100vw;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);background:#f3f4f6;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans JP',sans-serif}
#tg-letter-tool *{box-sizing:border-box}
#tg-letter-tool .tg-inner{max-width:1540px;margin:0 auto;padding:20px}
#tg-letter-tool .tg-head,#tg-letter-tool .tg-card{background:#fff;border:1px solid #e5e7eb;border-radius:18px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
#tg-letter-tool .tg-head{padding:18px 20px;margin-bottom:18px}
#tg-letter-tool .tg-head h2{margin:0;font-size:24px;line-height:1.4}
#tg-letter-tool .tg-head p{margin:8px 0 0;color:var(--muted);font-size:14px;line-height:1.8}
#tg-letter-tool .tg-layout{display:grid;grid-template-columns:minmax(340px,520px) minmax(0,1fr);gap:18px;align-items:start}
#tg-letter-tool .tg-card{overflow:hidden}
#tg-letter-tool .tg-card h3{margin:0;padding:14px 16px;font-size:16px;background:#fafafa;border-bottom:1px solid #e5e7eb}
#tg-letter-tool .tg-preview-head{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fafafa;border-bottom:1px solid #e5e7eb;padding:0 12px 0 0}
#tg-letter-tool .tg-preview-head h3{background:transparent;border-bottom:0}
#tg-letter-tool .tg-tip-toggles{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}
#tg-letter-tool .tg-manners-toggle{background:#eef6f9;color:#164e63;border:1px solid #cfe7ef;border-radius:999px;padding:8px 12px;font-size:12px;white-space:nowrap}
#tg-letter-tool .tg-manners-toggle:after{content:'＋';font-weight:900;margin-left:6px}
#tg-letter-tool .tg-manners-toggle.tg-open:after{content:'－'}
#tg-letter-tool .tg-ai-toggle{background:linear-gradient(135deg,#6d28d9,#8b5cf6);color:#fff;border-color:#6d28d9;box-shadow:0 4px 12px rgba(109,40,217,.28);font-size:13px;padding:10px 15px}
#tg-letter-tool .tg-ai-toggle:hover{filter:brightness(1.06);transform:translateY(-1px)}
#tg-letter-tool .tg-form{padding:16px;display:grid;gap:14px}
#tg-letter-tool label{display:block;margin:0 0 6px;font-size:13px;font-weight:700}
#tg-letter-tool input,#tg-letter-tool textarea,#tg-letter-tool select{width:100%;max-width:100%;border:1px solid #d1d5db;border-radius:10px;padding:10px 11px;font-size:14px;line-height:1.6;background:#fff;color:var(--ink);box-shadow:none;margin:0}
#tg-letter-tool textarea{min-height:260px;resize:vertical}
#tg-letter-tool .tg-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
#tg-letter-tool .tg-hint{font-size:12px;color:var(--muted);line-height:1.7;margin-top:5px}
#tg-letter-tool .tg-note{border:1px solid #e5e7eb;background:#fafafa;border-radius:12px;padding:10px 12px;font-size:12px;line-height:1.8;color:#374151}
#tg-letter-tool .tg-alert{border:1px solid #eed27b;background:#fff8dd;color:#7c5a00;border-radius:12px;padding:10px 12px;font-size:12px;line-height:1.8;margin-top:8px}
#tg-letter-tool .tg-btns,#tg-letter-tool .tg-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
#tg-letter-tool button{appearance:none;border:0;border-radius:999px;background:var(--accent);color:#fff;padding:10px 14px;font-size:13px;font-weight:700;cursor:pointer}
#tg-letter-tool .tg-btns button{padding:8px 10px;font-size:12px;background:#eef6f9;color:#164e63}
#tg-letter-tool button.tg-secondary{background:#e5e7eb;color:#111827}
#tg-letter-tool button.tg-danger{background:#f3d4cf;color:#7a1c12}
#tg-letter-tool .tg-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:12px 16px 0}
#tg-letter-tool .tg-stat{border:1px solid #e5e7eb;border-radius:12px;padding:10px;background:#fff}
#tg-letter-tool .tg-label{font-size:11px;color:var(--muted);font-weight:700}
#tg-letter-tool .tg-value{font-size:18px;font-weight:800;margin-top:3px}
#tg-letter-tool .tg-warn .tg-value{color:var(--warn)}
#tg-letter-tool .tg-ok .tg-value{color:var(--ok)}
#tg-letter-tool .tg-preview{padding:16px;overflow:auto;-webkit-overflow-scrolling:touch}
#tg-letter-tool .tg-pages{display:flex;gap:22px;align-items:flex-start;min-width:932px}
#tg-letter-tool .tg-paper-block{display:grid;gap:8px;justify-items:center}
#tg-letter-tool .tg-page2{order:1}#tg-letter-tool .tg-page1{order:2}
#tg-letter-tool .tg-paper-title{font-size:13px;font-weight:800;color:#555}
#tg-letter-tool .tg-paper{width:455px;height:690px;background:var(--paper);border:1px solid #cfc7b8;box-shadow:0 4px 16px rgba(0,0,0,.08);position:relative;padding:58px 34px 42px;overflow:hidden}
#tg-letter-tool .tg-paper:before{content:'';position:absolute;inset:0;background-image:linear-gradient(35deg,rgba(0,0,0,.025) 1px,transparent 1px),linear-gradient(120deg,rgba(0,0,0,.018) 1px,transparent 1px);background-size:42px 42px,57px 57px;opacity:.65;pointer-events:none}
#tg-letter-tool .tg-grid{position:relative;z-index:1;display:flex;flex-direction:row-reverse;gap:3px;justify-content:center;height:590px}
#tg-letter-tool .tg-col{position:relative;display:grid;grid-template-rows:repeat(30,18px);width:24px;border-left:1px solid var(--line);border-right:1px solid var(--line)}
#tg-letter-tool .tg-cell{width:24px;height:18px;display:flex;align-items:center;justify-content:center;font-family:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;font-size:13px;line-height:1;border-bottom:1px solid rgba(217,217,217,.7);writing-mode:vertical-rl;text-orientation:upright}
#tg-letter-tool .tg-cell.tg-punc{font-size:10px;transform:translate(5px,-4px)}
#tg-letter-tool .tg-cell.tg-smallkana{font-size:10px;transform:translate(4px,-3px)}
#tg-letter-tool .tg-cell.tg-dash{font-size:14px;transform:rotate(90deg)}
#tg-letter-tool .tg-hang{position:absolute;left:0;right:0;height:18px;display:flex;align-items:center;justify-content:center;font-family:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;font-size:10px;line-height:1;transform:translate(5px,-4px);color:#333}
#tg-letter-tool .tg-over .tg-cell{background:#fff0f0}
#tg-letter-tool .tg-date .tg-cell.tg-on,#tg-letter-tool .tg-sender .tg-cell.tg-on{font-size:12px}
#tg-letter-tool .tg-warnings{margin:0 16px 16px;border:1px solid #f1c4bd;background:#fff7f6;color:#7a1c12;border-radius:12px;padding:10px 12px;font-size:13px;line-height:1.7;display:none}
#tg-letter-tool .tg-warnings.tg-show{display:block}
#tg-letter-tool .tg-manners{margin:0 16px 16px;border:1px solid #e5e7eb;border-radius:14px;background:#fff;overflow:hidden;display:none}
#tg-letter-tool .tg-manners.tg-open{display:block}
#tg-letter-tool .tg-manners-head{padding:12px 14px;background:#fafafa;border-bottom:1px solid #e5e7eb;font-weight:800;font-size:14px}
#tg-letter-tool .tg-manners-body{padding:14px;display:grid;grid-template-columns:minmax(360px,1.15fr) minmax(280px,.85fr);gap:16px;align-items:start}
#tg-letter-tool .tg-manner-figure{background:#f7f7f7;border:1px solid #e0e0e0;border-radius:12px;padding:12px;overflow:auto}
#tg-letter-tool .tg-manner-photo{display:block;max-width:100%;height:auto;border:1px solid #d5d5d5;border-radius:8px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.04);cursor:zoom-in}
#tg-letter-tool .tg-manner-points{display:grid;gap:10px}
#tg-letter-tool .tg-manner-steps{display:grid;gap:10px}
#tg-letter-tool .tg-manner-step{border:1px solid #e5e7eb;border-radius:12px;padding:10px 12px;background:#fff}
#tg-letter-tool .tg-manner-step-title{font-size:14px;font-weight:800;margin:0 0 6px}
#tg-letter-tool .tg-manner-step p{margin:0;font-size:12px;line-height:1.8;color:#374151}
#tg-letter-tool .tg-manner-points h4{margin:0;font-size:15px}
#tg-letter-tool .tg-manner-points ul{margin:0;padding-left:1.2em;font-size:13px;line-height:1.8}
#tg-letter-tool .tg-manner-note{border:1px solid #eed27b;background:#fff8dd;color:#7c5a00;border-radius:12px;padding:10px 12px;font-size:12px;line-height:1.7}
#tg-letter-tool .tg-ai-callout{margin:14px 16px 12px;padding:13px 15px;border:2px solid #c4b5fd;border-radius:14px;background:linear-gradient(135deg,#faf5ff,#eef2ff);display:flex;align-items:center;justify-content:space-between;gap:14px}
#tg-letter-tool .tg-manners-callout{border-color:#bae6fd;background:linear-gradient(135deg,#f0f9ff,#ecfeff)}
#tg-letter-tool .tg-manners-callout .tg-ai-callout-text{color:#164e63}
#tg-letter-tool .tg-ai-callout-text{font-size:13px;line-height:1.7;color:#4c1d95}
#tg-letter-tool .tg-ai-callout-text strong{display:block;font-size:15px;margin-bottom:2px}
#tg-letter-tool .tg-ai-tips{margin:0 16px 16px;border:2px solid #c4b5fd;border-radius:14px;background:#fff;overflow:hidden;display:none;box-shadow:0 5px 18px rgba(109,40,217,.12)}
#tg-letter-tool .tg-ai-tips.tg-open{display:block}
#tg-letter-tool .tg-ai-head{padding:14px 16px;background:linear-gradient(135deg,#6d28d9,#8b5cf6);border-bottom:1px solid #e8e0ff;font-weight:800;font-size:16px;color:#fff}
#tg-letter-tool .tg-ai-body{padding:14px;display:grid;gap:12px}
#tg-letter-tool .tg-ai-intro{margin:0;font-size:13px;line-height:1.8;color:#374151}
#tg-letter-tool .tg-ai-prompt{width:100%;min-height:430px!important;background:#fafafa!important;font-family:ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace!important;font-size:12px!important;line-height:1.75!important}
#tg-letter-tool .tg-prompt-tabs{display:flex;gap:8px;flex-wrap:wrap}
#tg-letter-tool .tg-prompt-tab{background:#ede9fe;color:#5b21b6;border:1px solid #c4b5fd}
#tg-letter-tool .tg-prompt-tab.tg-active{background:#6d28d9;color:#fff;border-color:#6d28d9}
#tg-letter-tool .tg-prompt-panel{display:none}
#tg-letter-tool .tg-prompt-panel.tg-active{display:block}
#tg-letter-tool .tg-copy-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
#tg-letter-tool .tg-copy-status{font-size:12px;font-weight:700;color:var(--ok)}
#tg-letter-tool .tg-image-modal{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:999999;display:none;align-items:center;justify-content:center;padding:24px}
#tg-letter-tool .tg-image-modal.tg-open{display:flex}
#tg-letter-tool .tg-image-modal-inner{position:relative;max-width:min(1100px,96vw);max-height:92vh;background:#fff;border-radius:14px;padding:14px;box-shadow:0 12px 40px rgba(0,0,0,.35)}
#tg-letter-tool .tg-image-modal img{display:block;max-width:100%;max-height:82vh;width:auto;height:auto;border-radius:8px}
#tg-letter-tool .tg-modal-close{position:absolute;top:-14px;right:-14px;width:36px;height:36px;border-radius:999px;border:0;background:#fff;color:#111827;font-weight:800;box-shadow:0 3px 12px rgba(0,0,0,.25);cursor:pointer}
#tg-letter-tool .tg-modal-caption{font-size:12px;line-height:1.6;color:#4b5563;margin:8px 4px 0;text-align:center}
#tg-letter-tool .tg-submit-modal{position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:999998;display:none;align-items:center;justify-content:center;padding:22px}
#tg-letter-tool .tg-submit-modal.tg-open{display:flex}
#tg-letter-tool .tg-submit-modal-inner{position:relative;width:min(920px,96vw);max-height:92vh;overflow:auto;background:#fff;border-radius:16px;box-shadow:0 12px 40px rgba(0,0,0,.35)}
#tg-letter-tool .tg-submit-head{padding:16px 18px;border-bottom:1px solid #e5e7eb;background:#fafafa}
#tg-letter-tool .tg-submit-head h3{margin:0;font-size:18px;background:none;border:0;padding:0}
#tg-letter-tool .tg-submit-head p{margin:6px 0 0;font-size:12px;line-height:1.7;color:#6b7280}
#tg-letter-tool .tg-submit-body{padding:16px 18px;display:grid;gap:14px}
#tg-letter-tool .tg-submit-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
#tg-letter-tool .tg-submit-summary{border:1px solid #e5e7eb;border-radius:12px;background:#fafafa;padding:10px 12px;font-size:12px;line-height:1.8}
#tg-letter-tool .tg-submit-summary b{display:inline-block;min-width:96px}
#tg-letter-tool .tg-submit-preview{display:grid;grid-template-columns:1fr 1fr;gap:10px}
#tg-letter-tool .tg-submit-preview textarea{min-height:170px;background:#fafafa}
#tg-letter-tool .tg-submit-note{border:1px solid #eed27b;background:#fff8dd;color:#7c5a00;border-radius:12px;padding:10px 12px;font-size:12px;line-height:1.8}
#tg-letter-tool .tg-submit-status{font-size:13px;line-height:1.7;font-weight:700}
#tg-letter-tool .tg-submit-status.tg-error{color:#b42318}
#tg-letter-tool .tg-submit-status.tg-success{color:#137333}
#tg-letter-tool .tg-submit-close{position:absolute;top:10px;right:10px;width:34px;height:34px;border-radius:999px;background:#e5e7eb;color:#111827;padding:0}
#tg-letter-tool .tg-submit-modal button[disabled]{opacity:.55;cursor:not-allowed}
#tg-letter-tool details{margin:0 16px 16px;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden}
#tg-letter-tool summary{cursor:pointer;padding:10px 12px;background:#fafafa;font-weight:800;font-size:13px}
#tg-letter-tool table{width:100%;border-collapse:collapse;font-size:12px;background:#fff;margin:0}
#tg-letter-tool th,#tg-letter-tool td{border-top:1px solid #e5e7eb;padding:6px 8px;vertical-align:top;line-height:1.6}
#tg-letter-tool th{background:#f9fafb;text-align:left}
#tg-letter-tool td.tg-len{text-align:right;width:70px}
#tg-letter-tool td.tg-ng{color:var(--warn);font-weight:800}
#tg-letter-tool .tg-privacy{margin:0 16px 16px;color:var(--muted);font-size:12px;line-height:1.7}
@media(max-width:1180px){#tg-letter-tool .tg-layout{grid-template-columns:1fr}}
@media(max-width:760px){
#tg-letter-tool .tg-manners-body{grid-template-columns:1fr}
#tg-letter-tool .tg-ai-callout{align-items:flex-start;flex-direction:column}
#tg-letter-tool .tg-submit-grid{grid-template-columns:1fr}
#tg-letter-tool .tg-submit-preview{grid-template-columns:1fr}

#tg-letter-tool .tg-preview-head{display:grid;grid-template-columns:1fr;gap:0;padding:0 12px 12px}
#tg-letter-tool .tg-manners-toggle{justify-self:start;margin-left:4px}
#tg-letter-tool .tg-inner{padding:12px}
#tg-letter-tool .tg-head{padding:14px;border-radius:14px}
#tg-letter-tool .tg-head h2{font-size:19px}
#tg-letter-tool .tg-head p{font-size:12px}
#tg-letter-tool .tg-row{grid-template-columns:1fr}
#tg-letter-tool .tg-stats{grid-template-columns:repeat(2,1fr)}
#tg-letter-tool .tg-preview{padding:12px}
#tg-letter-tool .tg-pages{min-width:0;width:100%;display:grid;grid-template-columns:1fr;justify-items:center;gap:18px}
#tg-letter-tool .tg-page1{order:1}#tg-letter-tool .tg-page2{order:2}
#tg-letter-tool .tg-paper{width:min(360px,100%);height:560px;padding:42px 22px 34px}
#tg-letter-tool .tg-grid{gap:2px;height:470px}
#tg-letter-tool .tg-col{grid-template-rows:repeat(30,15px);width:20px}
#tg-letter-tool .tg-cell{width:20px;height:15px;font-size:11px}
#tg-letter-tool .tg-date .tg-cell.tg-on,#tg-letter-tool .tg-sender .tg-cell.tg-on{font-size:10px}
#tg-letter-tool .tg-cell.tg-punc,#tg-letter-tool .tg-cell.tg-smallkana{font-size:9px}
}
@media(max-width:390px){
#tg-letter-tool .tg-stats{grid-template-columns:1fr}
#tg-letter-tool .tg-paper{width:min(330px,100%);height:525px;padding:38px 16px 32px}
#tg-letter-tool .tg-grid{height:440px}
#tg-letter-tool .tg-col{grid-template-rows:repeat(30,14px);width:18px}
#tg-letter-tool .tg-cell{width:18px;height:14px;font-size:10px}
}
@media print{
#tg-letter-tool{width:100%;max-width:100%;margin:0;background:#fff}
#tg-letter-tool .tg-head,#tg-letter-tool .tg-input,#tg-letter-tool .tg-stats,#tg-letter-tool .tg-warnings,#tg-letter-tool details,#tg-letter-tool .tg-privacy{display:none!important}
#tg-letter-tool .tg-inner{max-width:none;padding:0}
#tg-letter-tool .tg-layout{display:block}
#tg-letter-tool .tg-card{border:0;box-shadow:none}
#tg-letter-tool .tg-card h3{display:none}
#tg-letter-tool .tg-preview{padding:0;overflow:visible}
#tg-letter-tool .tg-pages{gap:10mm;min-width:0;justify-content:center}
#tg-letter-tool .tg-paper{box-shadow:none;break-inside:avoid}
}