:root{--app-height: 100dvh;--bg: #f3f6f1;--surface: #fbfcf8;--surface-raised: #ffffff;--surface-muted: #e9eee7;--surface-strong: #dfe7df;--ink: #17231e;--ink-soft: #4d5b53;--ink-faint: #69766e;--green: #2f5e4b;--green-deep: #214538;--green-soft: #dce9e0;--yellow: #f1d35e;--yellow-soft: #fbf1bf;--amber: #9a6420;--amber-soft: #f6e9d0;--red: #a34b42;--red-soft: #f4dfdc;--blue: #3f6678;--blue-soft: #dfeaf0;--page-gap: 16px;--radius: 8px;--font-ui: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-hand: "KaiTi", "STKaiti", "Kaiti SC", "Songti SC", 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var(--page-gap) 28px}.page-header{padding:8px var(--page-gap) 14px;display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.header-copy{min-width:0}.header-kicker{margin:0 0 4px;color:var(--ink-faint);font-size:12px;font-weight:600}.desktop-guide{display:none}.page-title{margin:0;font-size:30px;line-height:1.12;font-weight:760;text-wrap:balance}.page-title.small{font-size:24px}.page-subtitle{margin:6px 0 0;color:var(--ink-soft);font-size:13px}.header-actions{display:flex;align-items:center;gap:4px;margin-top:2px}.icon-button{width:40px;height:40px;padding:0;border:0;border-radius:var(--radius);background:transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .15s ease,color .15s ease,transform .15s ease}.icon-button:hover{background:var(--surface-muted)}.icon-button:active{transform:scale(.96)}.icon-button.soft{background:var(--surface-muted)}.icon-button.danger{color:var(--red)}.icon-button[disabled]{color:var(--ink-faint);cursor:default;opacity:.5}.search-box{height:46px;margin:0 var(--page-gap) 12px;padding:0 12px;display:flex;align-items:center;gap:8px;background:var(--surface-raised);border-radius:var(--radius);color:var(--ink-faint)}.search-box:focus-within{background:var(--green-soft)}.search-box input{width:100%;height:100%;border:0;outline:0;background:transparent;color:var(--ink);font-size:16px}.search-box input::placeholder{color:#748077}.attention-row{width:calc(100% - var(--page-gap) * 2);min-height:42px;margin:0 var(--page-gap) 12px;padding:8px 10px;border:0;border-radius:var(--radius);background:var(--green-soft);color:var(--green-deep);display:flex;align-items:center;gap:6px;text-align:left;font-size:13px;font-weight:620;cursor:pointer}.attention-row 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ease}.primary-button{background:var(--green);color:#fff}.primary-button:hover{background:var(--green-deep)}.primary-button:active,.secondary-button:active,.danger-button:active{transform:scale(.985)}.primary-button:disabled{background:var(--surface-strong);color:var(--ink-faint);cursor:default}.secondary-button{background:var(--surface-muted);color:var(--ink)}.secondary-button:hover{background:var(--surface-strong)}.danger-button{background:var(--red-soft);color:var(--red)}.wide{width:100%}.capture-header{padding-bottom:8px}.capture-view{margin:0 var(--page-gap) 14px;overflow:hidden;border-radius:var(--radius);background:#dfe4dc;display:flex;flex-direction:column}.capture-stage{position:relative;height:clamp(188px,28dvh,242px);min-height:0;padding:14px;display:grid;place-items:center}.focus-corner{position:absolute;width:34px;height:34px;border-color:#ffffffbf}.focus-corner.tl{top:18px;left:18px;border-top:2px solid;border-left:2px solid}.focus-corner.tr{top:18px;right:18px;border-top:2px solid;border-right:2px solid}.focus-corner.bl{bottom:18px;left:18px;border-bottom:2px solid;border-left:2px solid}.focus-corner.br{right:18px;bottom:18px;border-right:2px solid;border-bottom:2px solid}.capture-sheet{width:min(58%,180px);height:min(100%,172px);overflow:hidden;padding:10px 11px;transform:rotate(-1.2deg);border-radius:3px;background:#faf8f0;color:#23312a;border:6px solid rgba(255,255,255,.42)}.capture-sheet h3{margin:0 0 5px;font-family:var(--font-hand);font-size:13px;font-weight:600}.handwriting{display:grid;gap:2px;font-family:var(--font-hand);font-size:10px;line-height:1.45}.handwriting .indent{padding-left:16px}.handwriting .formula{padding:3px 5px;border-radius:4px;background:#2f5e4b14;font-family:Georgia,Times New Roman,serif;font-style:italic}.capture-overlay{position:absolute;left:50%;bottom:6px;transform:translate(-50%);padding:4px 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var(--page-gap) 18px}.capture-section h2{margin:0 0 10px;font-size:16px}.thumbnail-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}.thumbnail-row::-webkit-scrollbar{display:none}.page-thumb{position:relative;width:92px;height:112px;flex:0 0 92px;overflow:hidden;border-radius:6px;background:#faf8f0;color:var(--ink)}.page-thumb img{width:100%;height:100%;object-fit:cover}.page-thumb .page-index{position:absolute;right:5px;bottom:5px;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:#16241dbd;color:#fff;display:grid;place-items:center;font-size:10px;font-variant-numeric:tabular-nums}.page-thumb .remove-thumb{position:absolute;top:4px;right:4px;width:24px;height:24px;padding:0;border:0;border-radius:50%;background:#16241db3;color:#fff;display:grid;place-items:center;cursor:pointer}.page-thumb .remove-thumb .icon{width:14px;height:14px}.add-page{width:92px;height:112px;flex:0 0 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