:root{color-scheme:light;--paper: #f7f8f9;--grid: #0057a3;--seal: #00457f;--seal-tint: rgba(0, 87, 163, .1);--ink: #14181f;--ink-soft: #5b6472;--border: #d7dce2;--warn: #f2a900;--warn-ink: #8a6100;--warn-tint: #fdf6e6;--success: #3f7a52;--danger: #b3261e;--radius: 3px;--font-serif: "Microsoft JhengHei", "PingFang TC", system-ui, -apple-system, "Segoe UI", sans-serif;--font-sans: "Microsoft JhengHei", "PingFang TC", system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono: ui-monospace, "SF Mono", Consolas, "Courier New", monospace}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-serif);line-height:1.7}::selection{background:var(--seal-tint);color:var(--seal)}a{color:var(--seal)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--seal);outline-offset:2px}.page{max-width:680px;margin:0 auto;padding:0 1.25rem}header.site-header{position:sticky;top:0;z-index:100;width:100%;background:var(--grid);margin-bottom:3rem}.site-header-inner{padding:.725rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.site-name{font-family:var(--font-mono);font-size:1.15rem;font-weight:700;letter-spacing:.02em;color:#fff;text-decoration:none;white-space:nowrap}.site-name:after{content:"_";color:var(--warn);animation:blink 1s step-end infinite}.header-nav{display:flex;align-items:center;gap:.7rem}.tool-switch{display:flex;gap:1rem}.tool-switch a{color:#ffffffb3;font-weight:700;font-size:.85rem;letter-spacing:.05em;text-transform:uppercase;text-decoration:none;white-space:nowrap}.tool-switch a:hover{color:#fff}.tool-switch a[aria-current=page]{color:#fff;text-decoration:underline;text-underline-offset:.25em}.header-divider{width:1px;height:1.15rem;background:#ffffff52}.lang-toggle{color:#ffffffd9;font-weight:700;font-size:.7rem;letter-spacing:.03em;text-decoration:none;border-radius:var(--radius);padding:.28rem .55rem;white-space:nowrap}.lang-toggle:hover{background:#ffffff24}.mode-switch{display:inline-flex;gap:1.25rem;margin-bottom:1.25rem;border-bottom:1px solid var(--border)}.mode-btn{font-family:var(--font-serif);font-size:.85rem;font-weight:500;text-transform:none;letter-spacing:normal;padding:.5rem .1rem;margin-right:0;border:none;border-bottom:2px solid transparent;border-radius:0;background:none;box-shadow:none;color:var(--ink-soft);cursor:pointer;margin-bottom:-1px;transition:color .15s ease,border-color .15s ease}.mode-btn:hover{color:var(--ink)}.mode-btn.active{color:var(--seal);border-bottom-color:var(--seal);font-weight:700}h1{font-family:var(--font-serif);font-size:clamp(1.7rem,1.3rem + 1.6vw,2.3rem);font-weight:800;letter-spacing:.01em;text-align:center;text-wrap:balance;margin:0 0 .9rem}.lede{color:var(--ink-soft);text-align:center;font-size:1.1rem;max-width:38rem;margin:0 auto 3.5rem}.spelling-note{font-size:.85rem;color:var(--ink-soft);text-align:center;margin:0 0 1rem;display:flex;align-items:baseline;justify-content:center;flex-wrap:wrap;gap:.4rem .6rem}.spelling-note strong{color:var(--ink);font-weight:600}.example-pair{display:inline-flex;align-items:center;gap:.35rem;font-family:var(--font-mono);font-size:.85rem}.example-pair .ok:before{content:"✓ ";color:var(--success);font-weight:700}.example-pair .no{text-decoration:line-through;opacity:.75}.example-pair .no:before{content:"✕ ";color:var(--danger);font-weight:700}.editor-wrap{position:relative}.seal{position:absolute;top:-1rem;left:1.2rem;z-index:2;display:flex;align-items:center;justify-content:center;width:2.6rem;height:2.6rem;border-radius:50%;background:var(--grid);color:#fff;font-family:var(--font-serif);font-size:1.15rem;font-weight:800;border:3px solid var(--paper);box-shadow:0 2px 6px #14181f33}.editor{width:100%;box-sizing:border-box;min-height:4.2rem;font-family:var(--font-sans);font-size:1.5rem;line-height:1.8;padding:1.1rem 1.25rem .95rem;background-color:var(--paper);border:1px solid var(--border);border-top:6px solid var(--grid);border-radius:0;color:var(--ink);white-space:pre-wrap;word-break:break-word;cursor:text;caret-color:transparent;-webkit-user-modify:read-write-plaintext-only}.editor:focus{outline:none;border-width:2px;border-color:var(--grid);border-top-width:7px}.editor.empty:before{content:attr(data-placeholder);color:#9aa3ad}.segment-word{cursor:pointer;padding:0 2px}.segment-word:hover{background:var(--seal-tint)}.composing-wrap{position:relative;display:inline-block}.composing{text-decoration:underline;text-decoration-color:var(--warn);text-decoration-thickness:3px}.composing.frozen{text-decoration:underline dashed var(--ink-soft);color:var(--ink-soft)}.caret{display:inline-block;width:2px;height:1.2rem;vertical-align:middle;background:var(--grid);animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}@media(prefers-reduced-motion:reduce){.site-name:after,.caret{animation:none}}.candidates{position:absolute;top:100%;left:0;z-index:10;margin-top:.4rem;background:var(--paper);border:1px solid var(--grid);box-shadow:2px 2px #14181f26;font-size:1rem;overflow:hidden;white-space:nowrap}.candidate{display:flex;justify-content:space-between;gap:1.5rem;padding:.45rem .9rem;cursor:pointer}.candidate:hover{background:var(--seal-tint)}.candidate.selected{background:var(--seal);color:#fff}.candidate-spelling{color:var(--ink-soft);font-size:.85rem}.candidate.selected .candidate-spelling{color:#fffc}.ime-warning{font-family:var(--font-mono);color:var(--warn-ink);font-size:.85rem;margin-top:.5rem;min-height:1.2em}.actions{margin-top:.85rem;display:flex;justify-content:center;gap:.6rem}button{font-family:var(--font-serif);font-weight:700;font-size:.8rem;letter-spacing:.04em;text-transform:uppercase;padding:.45rem 1rem;border-radius:var(--radius);border:none;background:var(--border);color:var(--ink);cursor:pointer;transition:background-color .15s ease,color .15s ease}button:hover{background:#c7cdd5}#copy{background:var(--grid);color:var(--paper)}#copy:hover{background:var(--seal)}.examples{margin-top:2.25rem;text-align:center}.examples-label{font-family:var(--font-mono);font-size:.78rem;color:var(--ink-soft);letter-spacing:.02em;margin:0 0 .5rem}.example-list{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;list-style:none;padding:0;margin:0}.example-list button{font-family:var(--font-mono);font-weight:400;text-transform:none;letter-spacing:0;font-size:.82rem;padding:.35rem .85rem;background:var(--paper);border:1px solid var(--border);color:var(--grid)}.example-list button:hover{background:var(--seal-tint);border-color:var(--grid);color:var(--seal)}.section{margin-top:3rem}.section+.limits{margin-top:1.25rem}.section h2{font-weight:800;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin:0 0 .9rem;padding-bottom:.5rem;border-bottom:2px solid var(--border)}.steps{margin:0;padding-left:1.25rem;color:var(--ink)}.steps li{margin-bottom:.55rem}.hint-touch{display:none}@media(pointer:coarse){.hint-mouse{display:none}.hint-touch{display:inline}}.steps code,.lede code,p code{background:var(--seal-tint);color:var(--seal);padding:.1rem .35rem;border-radius:var(--radius);font-size:.9em;font-family:var(--font-mono)}.rom-details summary{font-weight:800;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);cursor:pointer;list-style:none;padding-bottom:.5rem;border-bottom:2px solid var(--border)}.rom-details summary::-webkit-details-marker{display:none}.rom-details summary:before{content:"▸ ";color:var(--warn-ink)}.rom-details[open] summary:before{content:"▾ "}.rom-details>p{margin-top:.85rem;color:var(--ink-soft)}.rom-group{margin-top:1.5rem}.rom-group:first-child{margin-top:1rem}.rom-group h3{font-size:.85rem;font-weight:600;color:var(--ink-soft);margin:0 0 .5rem}.rom-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:0;border-top:1px solid var(--border);border-left:1px solid var(--border)}.rom-pair{display:flex;flex-direction:column;align-items:center;gap:.1rem;border-right:1px solid var(--border);border-bottom:1px solid var(--border);padding:.35rem .2rem}.rom-pair .jamo{font-size:1.1rem}.rom-pair .latin{font-size:.75rem;color:var(--ink-soft);font-family:var(--font-mono)}.kbd-scroll{overflow-x:auto;margin-top:1.5rem}.kbd-diagram{display:flex;flex-direction:column;gap:.35rem;width:max-content;margin:0 auto;font-family:var(--font-mono)}.kbd-row{display:flex;gap:.4rem}.kbd-row-2{margin-left:1.55rem}.kbd-row-3{margin-left:3.1rem}.kbd-key{position:relative;width:2.8rem;height:2.8rem;flex-shrink:0;border:1px solid var(--border);border-radius:var(--radius);background:var(--paper);display:flex;align-items:center;justify-content:center}.kbd-jamo{font-size:1.15rem;color:var(--ink)}.kbd-latin{position:absolute;right:.3rem;bottom:.15rem;font-size:.6rem;color:var(--ink-soft);text-transform:uppercase}.kbd-shift{position:absolute;left:.3rem;top:.15rem;font-size:.68rem;color:var(--grid)}.kbd-space-row{margin-top:.15rem;justify-content:center}.kbd-space{width:13.5rem;height:1.6rem;font-size:.65rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-soft)}.lede:has(+.kbd-section){margin-bottom:1.5rem}.kbd-section{margin-top:0;margin-bottom:1.5rem}.kbd-legend{margin-top:.6rem;font-size:.78rem;color:var(--ink-soft)}.kbd-legend .kbd-shift-sample{color:var(--grid);font-weight:700}.limits{background:var(--warn-tint);border:1px solid var(--border);border-left:4px solid var(--warn);padding:1rem 1.25rem;color:var(--ink);font-size:.92rem}.limits h2{color:var(--warn-ink)}.limits p{margin:0}.faq-item{border-bottom:1px solid var(--border);padding:.9rem 0}.faq-item:first-of-type{border-top:1px solid var(--border)}.faq-item summary{font-weight:700;cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:before{content:"▸ ";color:var(--warn-ink)}.faq-item[open] summary:before{content:"▾ "}.faq-item p{margin:.6rem 0 0;color:var(--ink-soft);font-size:.92rem}footer{margin:3.5rem 0 2rem;padding-top:1.5rem;border-top:1px solid var(--border);color:var(--ink-soft);font-size:.8rem;font-family:var(--font-mono);text-align:center}footer p{margin:0 0 .9rem}.badges{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;margin:0 0 1rem;padding:0;list-style:none}.badges li{background:var(--paper);color:var(--seal);border:1px solid var(--border);border-radius:var(--radius);padding:.3rem .7rem;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}@media(max-width:480px){.page{padding:0 1rem}.site-header-inner{padding:.6rem 1.15rem}.site-name{font-size:.95rem}.header-nav{gap:.35rem}.tool-switch{gap:.5rem}.tool-switch a{font-size:.6rem;letter-spacing:.01em}.header-divider{height:.9rem}.lang-toggle{font-size:.6rem;padding:.22rem .4rem}.kbd-key{width:1.85rem;height:1.85rem}.kbd-row{gap:.25rem}.kbd-row-2{margin-left:1.05rem}.kbd-row-3{margin-left:2.15rem}.kbd-jamo{font-size:.85rem}.kbd-latin{font-size:.48rem;right:.2rem;bottom:.1rem}.kbd-shift{font-size:.5rem;left:.2rem;top:.1rem}.kbd-space{width:9rem;height:1.4rem;font-size:.55rem}}