:root{--bg:#f5f7f8;--surface:#fff;--surface-raised:#fffffff0;--ink:#17212b;--muted:#64717f;--line:#dce3e8;--accent:#0f7b6c;--accent-soft:#e3f3ef;--shadow:0 18px 42px #19263324;--header-height:46px;color:var(--ink);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.45}*{box-sizing:border-box}body{min-width:320px;min-height:100svh;margin:0}button{font:inherit}svg{display:block}#app{min-height:100svh}.manual-app{background:linear-gradient(180deg, #e3f3efb3, #f5f7f800 220px), var(--bg);min-height:100svh}.manual-header{z-index:10;min-height:var(--header-height);padding:max(6px, env(safe-area-inset-top)) 12px 6px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffb8;border-bottom:1px solid #dce3e885;justify-content:flex-end;align-items:center;display:flex;position:sticky;top:0}.manual-header__actions{justify-content:flex-end;align-items:center;gap:8px;display:flex;position:static}.manual-header .icon-button{background:#f8fafbdb;width:34px;height:34px}.icon-button,.sheet-close{border:1px solid var(--line);width:36px;height:36px;color:var(--muted);cursor:pointer;background:#f8fafb;border-radius:999px;place-items:center;transition:transform .16s,border-color .16s,background .16s;display:inline-grid}.icon-button:hover,.sheet-close:hover{background:#eef2f4;border-color:#cfd8de}.icon-button:active,.sheet-close:active{transform:scale(.96)}.icon-button:focus-visible,.sheet-close:focus-visible,.language-option:focus-visible{outline-offset:2px;outline:3px solid #0f7b6c42}.icon-button svg,.sheet-close svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.9px;width:18px;height:18px}.manual-content{width:min(100%,900px);min-height:calc(100svh - var(--header-height));margin:0 auto;padding:8px 10px 92px}.pdf-viewer{overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;width:100%;position:relative;overflow-x:auto}.pdf-toolbar{z-index:5;right:max(10px, env(safe-area-inset-right));bottom:max(12px, env(safe-area-inset-bottom));left:max(10px, env(safe-area-inset-left));border:1px solid var(--line);scrollbar-width:none;background:#fffffff2;border-radius:999px;align-items:center;gap:4px;width:fit-content;max-width:100%;margin:0 auto;padding:5px;display:flex;position:fixed;overflow-x:auto;box-shadow:0 10px 24px #1926331f}.pdf-toolbar::-webkit-scrollbar{display:none}.pdf-toolbar button{min-width:34px;height:34px;color:var(--ink);cursor:pointer;font-variant-numeric:tabular-nums;background:0 0;border:0;border-radius:999px;place-items:center;padding:0 8px;font-size:13px;font-weight:700;line-height:34px;display:inline-grid}.pdf-toolbar button:hover{background:var(--accent-soft)}.pdf-toolbar button:disabled{cursor:not-allowed;opacity:.35}.pdf-toolbar button:focus-visible{outline-offset:2px;outline:3px solid #0f7b6c42}.pdf-toolbar svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2px;width:18px;height:18px}.page-jumper{height:34px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;background:#f7f9fa;border-radius:999px;align-items:center;gap:2px;padding:0 9px;font-size:13px;font-weight:700;line-height:34px;display:inline-flex}.page-jumper input{width:30px;height:34px;color:var(--ink);font:inherit;text-align:center;background:0 0;border:0;outline:none;padding:0;line-height:34px}.page-total{align-items:center;height:34px;line-height:34px;display:inline-flex}.zoom-reset{min-width:48px}.page-jumper input::-webkit-outer-spin-button{appearance:none;margin:0}.page-jumper input::-webkit-inner-spin-button{appearance:none;margin:0}.toolbar-divider{background:var(--line);width:1px;height:20px}.pdf-pages{justify-items:center;gap:14px;width:max-content;min-width:100%;display:grid}.pdf-page-shell{border:1px solid var(--line);background:linear-gradient(135deg,#fff,#eef4f5);border-radius:6px;place-items:center;display:grid;box-shadow:0 10px 30px #19263314}.pdf-page{border:1px solid var(--line);background:var(--surface);border-radius:6px;max-width:none;height:auto;box-shadow:0 10px 30px #1926331a}.page-placeholder{color:var(--muted);font-size:13px}.pdf-loading{z-index:4;top:calc(var(--header-height) + 6px);border:1px solid var(--line);background:#fffffff0;border-radius:999px;place-items:center;width:38px;height:38px;margin:0 auto 14px;display:grid;position:sticky;box-shadow:0 10px 24px #1926331f}.loader{border:2px solid #0f7b6c2e;border-top-color:var(--accent);border-radius:999px;width:16px;height:16px;animation:.8s linear infinite spin}.empty-state{min-height:calc(100svh - var(--header-height) - 80px);text-align:center;align-content:center;place-items:center;padding:34px 22px;display:grid}.pdf-fallback-actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px;display:flex}.fallback-action{border:1px solid var(--line);min-height:40px;color:var(--ink);background:var(--surface);cursor:pointer;font:inherit;border-radius:999px;justify-content:center;align-items:center;padding:10px 16px;font-size:14px;font-weight:700;line-height:1.2;text-decoration:none;display:inline-flex}.fallback-action.is-primary{border-color:var(--accent);color:#fff;background:var(--accent)}.fallback-action:focus-visible{outline-offset:2px;outline:3px solid #0f7b6c42}.empty-state__mark{border:1px solid var(--line);width:72px;height:72px;color:var(--accent);background:var(--surface);border-radius:8px;place-items:center;margin-bottom:18px;display:grid;box-shadow:0 14px 34px #1926331a}.empty-state__mark svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7px;width:34px;height:34px}.empty-state__mark.is-loading svg{display:none}.empty-state h2{color:var(--ink);letter-spacing:0;margin:0;font-size:20px;font-weight:760}.empty-state p{max-width:320px;color:var(--muted);margin:8px 0 0;font-size:14px}.language-layer{z-index:30;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:linear-gradient(#17212b24,#17212b75),#17212b2e;justify-content:center;align-items:flex-end;padding:0 10px 10px;display:flex;position:fixed;inset:0}.language-sheet{border-radius:18px 18px max(18px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-bottom));background:var(--surface);border:1px solid #dce3e8d1;width:min(100%,520px);max-height:min(78svh,620px);animation:.2s cubic-bezier(.16,1,.3,1) sheet-in;overflow:hidden;box-shadow:0 24px 60px #19263338,0 2px 12px #19263314}.language-sheet__handle{background:#d8e0e5;border-radius:999px;width:42px;height:4px;margin:10px auto 4px}.language-sheet__header{justify-content:space-between;align-items:center;gap:16px;min-height:64px;padding:8px 16px 12px 18px;display:flex}.language-sheet__header h2{color:var(--ink);letter-spacing:0;margin:0;font-size:19px;font-weight:760;line-height:1.18}.language-list{max-height:calc(78svh - 120px);padding:0 12px max(14px, env(safe-area-inset-bottom));gap:8px;display:grid;overflow:auto}.language-option{width:100%;min-height:52px;color:var(--ink);cursor:pointer;text-align:left;background:#f9fbfb;border:1px solid #edf2f4;border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px 10px 14px;transition:transform .16s,border-color .16s,background .16s,box-shadow .16s;display:flex;position:relative}.language-option:before{content:"";background:0 0;border-radius:0 999px 999px 0;width:3px;position:absolute;top:14px;bottom:14px;left:0}.language-option:hover{background:var(--accent-soft);border-color:#d5e6e2}.language-option:active{transform:scale(.99)}.language-option.is-active{background:linear-gradient(#f0faf7,#e6f4f1);border-color:#0f7b6c42;box-shadow:inset 0 0 0 1px #0f7b6c14}.language-option.is-active:before{background:var(--accent)}.language-option span:first-child{gap:4px;min-width:0;display:grid}.language-option strong{font-size:16px;font-weight:680;line-height:1.2}.language-option__check{background:var(--surface);border:1px solid #d9e2e6;border-radius:999px;flex:none;place-items:center;width:24px;height:24px;display:grid}.language-option.is-active .language-option__check{border-color:var(--accent);background:var(--accent)}.language-option__check svg{fill:none;stroke:#fff;stroke-linecap:round;stroke-linejoin:round;stroke-width:2.6px;width:15px;height:15px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes sheet-in{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@media (width>=768px){:root{--header-height:50px}.manual-header{padding:8px 28px}.manual-content{padding:10px 18px 92px}.language-layer{align-items:center}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}