:root{--primary-bg:#e3e5e8;--card-bg:#eef0f2;--input-bg:#fff;--text-dark:#202124;--text-light:#6b7280;--text-muted:#9aa0a6;--border-light:#d6d9dd;--border-subtle:#d2d6db;--input-border:#dcdcdc;--default-bg:#222;--hover-bg:#000;--input-width:640px}@media (prefers-color-scheme:dark){:root{--primary-bg:#0f1113;--card-bg:#1a1d21;--input-bg:#111;--text-dark:#e6e6e6;--text-light:#b0b6bd;--text-muted:#8a8f95;--border-light:#2c3137;--border-subtle:#33383f;--input-border:#3b4148;--default-bg:#2c3137;--hover-bg:#3b4148}}*{box-sizing:border-box}body{background:var(--primary-bg);flex-direction:column;align-items:center;min-height:100dvh;margin:0;padding:24px 16px;font-family:sans-serif;display:flex}input,textarea{width:min(var(--input-width), 100%);border:1px solid var(--input-border);background:var(--input-bg);color:var(--text-dark);border-radius:8px;padding:10px;font-size:14px}textarea{resize:vertical;height:min(180px,28vh);margin-bottom:15px;font-family:inherit;line-height:1.6}#filename{margin-bottom:8px}#title{margin-bottom:12px}.button-group{flex-wrap:wrap;justify-content:center;gap:8px;margin:12px 0;display:flex}button{background:var(--default-bg);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 22px;font-size:14px;font-weight:500;transition:background .2s}button:hover{background:var(--hover-bg)}button:active{opacity:.8}button:disabled{opacity:.6;cursor:not-allowed}.capture{width:min(var(--input-width), 100%);margin-top:16px;padding:40px;overflow:visible}.card{background:var(--card-bg);border:1px solid var(--border-light);border-radius:18px;padding:42px 40px 60px}.title{text-align:center;color:var(--text-dark);letter-spacing:.02em;margin-bottom:46px;font-family:Noto Sans SC;font-size:clamp(22px,5vw,30px);font-weight:600}.section{margin-bottom:46px}.jp{color:var(--text-light);word-break:break-all;white-space:pre-line;letter-spacing:.01em;margin-bottom:10px;padding-left:2px;font-family:Noto Sans JP,Hiragino Sans,system-ui,sans-serif;font-size:clamp(16px,3.8vw,19px);line-height:1.8}.cn{word-break:break-word;color:var(--text-dark);border-left:2px solid var(--border-subtle);letter-spacing:.01em;padding-left:16px;font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:clamp(18px,4.2vw,23px);line-height:1.9}.watermark{color:var(--text-muted);text-align:right;letter-spacing:.01em;margin-top:40px;font-family:Noto Sans SC;font-size:13px}.loading{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:1000;background:#ffffffb3;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.hidden{display:none}.spinner{border:3px solid #ddd;border-top-color:#333;border-radius:50%;width:36px;height:36px;margin-bottom:10px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.toast{color:#fff;opacity:.95;background:#222;border-radius:8px;padding:10px 16px;font-size:14px;position:fixed;bottom:30px;left:50%;transform:translate(-50%)}@media (width<=480px){body{padding:18px 12px}.card{padding:28px 22px 40px}textarea{height:140px}}