.ege-subjects{display:flex;gap:8px;flex-wrap:wrap}.ege-subj{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;cursor:pointer;border:1px solid var(--line-4);background:var(--panel);color:var(--muted);font:600 14px var(--sans, inherit)}.ege-subj:hover{color:var(--text)}.ege-subj.is-on{color:var(--text);border-color:var(--red-line, #5a2a2f);background:var(--panel-red)}.ege-subj-badge{padding:2px 7px;border-radius:6px;background:#6cc7ff24;color:var(--blue);font:700 10.5px var(--mono);text-transform:uppercase;letter-spacing:.05em}.ph-plot-box{position:relative;width:100%;max-width:560px;aspect-ratio:360 / 220;margin:4px 0}.ph-plot{position:absolute;inset:0;width:100%;height:100%;overflow:visible}.ph-grid{stroke:#1d2124;stroke-width:1}.ph-axis{stroke:#7d8287;stroke-width:1.4}.ph-tick,.ph-label{position:absolute;white-space:nowrap;pointer-events:none;line-height:1}.ph-tick{color:var(--muted);font:500 10.5px var(--mono)}.ph-tick--x{transform:translate(-50%)}.ph-tick--y{transform:translate(-100%,-50%)}.ph-label{color:var(--soft, #c2c7ca);font:600 11.5px var(--mono)}.ph-label--x{transform:translate(-100%)}.ph-label--y{transform:translate(0)}.ph-line{fill:none;stroke:var(--red);stroke-width:2.6;stroke-linejoin:round;stroke-linecap:round}.ph-fill{fill:#6cc7ff33;stroke:#6cc7ff8c;stroke-width:1}.ph-mark{fill:var(--yellow);stroke:#0b0c0d;stroke-width:1.5}.ph-dash{stroke:var(--yellow);stroke-width:1.3;stroke-dasharray:4 4;opacity:.85}.ph-arrow{fill:var(--red)}.ph-pt{position:absolute;transform:translateY(-100%);color:var(--yellow);font:700 12px var(--mono);line-height:1;pointer-events:none}.ph-plot-box.is-anim .ph-arrow,.ph-plot-box.is-anim .ph-pt{opacity:0;animation:ph-show .4s ease forwards;animation-delay:calc(1.8s + var(--i, 0) * .1s)}.ph-plot-box.is-anim .ph-line{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:ph-draw 1.6s var(--ease, ease) .2s forwards}.ph-plot-box.is-anim .ph-fill,.ph-plot-box.is-anim .ph-dash{opacity:0;animation:ph-show .6s ease 1.7s forwards}.ph-plot-box.is-anim .ph-mark{opacity:0;transform-box:fill-box;transform-origin:center;animation:ph-pop .35s ease forwards;animation-delay:calc(1.8s + var(--i) * .12s)}@keyframes ph-draw{to{stroke-dashoffset:0}}@keyframes ph-show{to{opacity:1}}@keyframes ph-pop{0%{opacity:0;transform:scale(.2)}to{opacity:1;transform:none}}.ege-tools-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.ege-tools-bar .btn-outline.is-on{border-color:var(--blue);color:var(--blue)}.ege-tools-note{color:var(--dim);font:500 12px var(--mono)}.ege-tools{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}.ege-tools.is-both{grid-template-columns:minmax(0,1fr) 300px;align-items:start}.ege-tools:empty{display:none}.calc{width:100%;max-width:320px;display:flex;flex-direction:column;gap:10px;padding:12px;border-radius:16px;border:1px solid var(--line-4);background:var(--panel);outline:none}.calc:focus-visible{border-color:var(--blue)}.calc-screen{padding:8px 10px;border-radius:10px;background:#0f1a14;border:1px solid #1d3326;min-height:72px;display:flex;flex-direction:column;gap:2px}.calc-mode{display:flex;gap:8px;font:700 9.5px var(--mono);color:#4d6b58}.calc-mode .is-on{color:var(--green)}.calc-mode span:last-child:not(.is-on){visibility:hidden}.calc-expr{min-height:18px;color:#9fc2ab;font:500 13px var(--mono);text-align:right;word-break:break-all}.calc-res{color:#d8f5e2;font:700 22px var(--mono);text-align:right;word-break:break-all}.calc-res.is-err{color:var(--red);font-size:15px}.calc-keys{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.calc-key{height:40px;border-radius:9px;cursor:pointer;border:1px solid var(--line-4);border-bottom-width:2px;background:#15171a;color:var(--text);font:600 15px var(--mono);touch-action:manipulation;user-select:none}.calc-key:active{transform:translateY(1px);border-bottom-width:1px}.calc-key.is-fn{background:#111316;color:var(--blue);font-size:12.5px}.calc-key.is-fn.is-on{background:#6cc7ff29}.calc-key.is-op{background:#13151a;color:#e6dcc6}.calc-key.is-clear{color:var(--red)}.calc-key.is-eq{grid-column:span 4;background:var(--red);border-color:#b94848;color:#1c0507;font-weight:800}.pad{display:flex;flex-direction:column;gap:8px;min-width:0}.pad-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:space-between}.pad-tabs{display:inline-flex;padding:3px;border-radius:10px;border:1px solid var(--line-4);background:var(--panel)}.pad-tab{padding:6px 11px;border:0;border-radius:7px;background:transparent;color:var(--muted);font:600 12.5px var(--mono);cursor:pointer}.pad-tab.is-on{background:#1b1e21;color:var(--text)}.pad-tools{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.pad-color{width:26px;height:26px;border-radius:50%;border:2px solid #2b2e31;background:var(--ink);cursor:pointer;padding:0}.pad-color.is-on{border-color:var(--text);box-shadow:0 0 0 2px #0b0c0d inset}.pad-tool{height:30px;padding:0 10px;border-radius:8px;border:1px solid var(--line-4);background:var(--panel);color:var(--soft, #c2c7ca);font:600 12px var(--mono);cursor:pointer}.pad-tool.is-on{border-color:var(--blue);color:var(--blue)}.pad-tool.is-warn{border-color:var(--red);color:var(--red)}.pad-tool:disabled{opacity:.4;cursor:default}.pad-sheet{position:relative;width:100%;min-height:200px;border-radius:14px;overflow:hidden;border:1px solid var(--line-4);background-color:#0d0f10;background-image:linear-gradient(#1a1d20 1px,transparent 1px),linear-gradient(90deg,#1a1d20 1px,transparent 1px);background-size:22px 22px}.pad-canvas{position:absolute;inset:0;display:block;touch-action:none;cursor:crosshair}.pad-sheet.is-notes .pad-canvas{visibility:hidden}.pad-notes{position:absolute;inset:0;width:100%;height:100%;resize:none;padding:12px 14px;border:0;outline:none;background:transparent;color:var(--text);font:500 14px/22px var(--mono)}.pad-foot{color:var(--dim);font:500 11px var(--mono)}.sc-phys{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:start;width:100%}.sc-phys.is-text{grid-template-columns:minmax(0,1fr)}.sc-phys-fig{min-width:0;padding:10px;border-radius:14px;border:1px solid var(--line-3);background:var(--panel-2)}.sc-phys-steps{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;counter-reset:step}.sc-phys-step{display:flex;flex-direction:column;gap:4px;padding:10px 12px 10px 38px;position:relative;border-radius:12px;border:1px solid var(--line-3);background:var(--panel);opacity:0;animation:ege-up .45s var(--ease, ease) forwards;animation-delay:calc(.5s + var(--i) * .55s);counter-increment:step}.sc-phys-step:before{content:counter(step);position:absolute;left:12px;top:10px;color:var(--red);font:700 12px var(--mono)}.sc-phys-t{color:var(--body, #b7bcc0);font-size:13.5px;line-height:1.45}.sc-phys-f{color:var(--text);font:600 14px/1.5 var(--mono);word-break:break-word}.sc-phys-ans{grid-column:1 / -1}.ph-osc{display:flex;flex-direction:column;gap:14px}.ph-osc-row{display:grid;grid-template-columns:52px minmax(0,1fr);align-items:center;gap:8px}.ph-osc-tag{color:var(--muted);font:600 11px var(--mono)}.ph-osc-track{position:relative;height:54px;border-bottom:2px solid #2b2e31}.ph-osc-wall{position:absolute;left:0;top:4px;bottom:0;width:6px;background:repeating-linear-gradient(45deg,#3a3e41 0 3px,transparent 3px 6px)}.ph-osc-spring{position:absolute;left:6px;top:24px;height:10px;width:40%;background:repeating-linear-gradient(90deg,transparent 0 5px,#9fa4a8 5px 7px);border-top:1px solid #9fa4a8;border-bottom:1px solid #9fa4a8;animation:ph-len var(--dur) ease-in-out infinite alternate}.ph-osc-spring:after{content:"";position:absolute;right:-34px;top:-13px;width:34px;height:34px;border-radius:6px;background:var(--red)}@keyframes ph-len{0%{width:calc(40% - var(--amp) * 22px)}to{width:calc(40% + var(--amp) * 22px)}}.ph-pend{position:relative;height:92px}.ph-pend-arm{position:absolute;left:50%;top:4px;width:2px;height:var(--len);background:#9fa4a8;transform-origin:top center;animation:ph-swing var(--dur) ease-in-out infinite alternate}.ph-pend-arm:after{content:"";position:absolute;left:-9px;bottom:-10px;width:20px;height:20px;border-radius:50%;background:var(--red)}.ph-pend-top{position:absolute;left:calc(50% - 30px);top:0;width:60px;height:4px;background:repeating-linear-gradient(45deg,#3a3e41 0 3px,transparent 3px 6px)}@keyframes ph-swing{0%{transform:rotate(calc(-14deg * var(--amp)))}to{transform:rotate(calc(14deg * var(--amp)))}}.ph-osc-label{color:var(--yellow);font:600 12px var(--mono)}@media(max-width:760px){.sc-phys,.ege-tools.is-both{grid-template-columns:minmax(0,1fr)}.calc{max-width:none}.calc-key{height:44px}}@media(prefers-reduced-motion:reduce){.ph-plot-box.is-anim .ph-line,.ph-plot-box.is-anim .ph-fill,.ph-plot-box.is-anim .ph-dash,.ph-plot-box.is-anim .ph-mark,.sc-phys-step{animation:none;opacity:1;stroke-dashoffset:0}.ph-osc-spring,.ph-pend-arm{animation-duration:calc(var(--dur) * 3)}}.ege-plot{max-width:560px;padding:8px 10px;border-radius:14px;border:1px solid var(--line-3);background:var(--panel-2)}.ph-scale{margin:6px 0;padding:10px 14px;border-radius:14px;border:1px solid var(--line-3);background:var(--panel-2);display:inline-flex;flex-direction:column;gap:6px}.ph-scale.is-h{width:100%;max-width:520px}.ph-scale.is-v{width:180px}.ph-scale-box{position:relative;width:100%}.ph-scale-svg{position:absolute;inset:0;width:100%;height:100%}.ph-scale-axis{stroke:#9fa4a8;stroke-width:1.6}.ph-scale-tick{stroke:#9fa4a8;stroke-width:1.1}.ph-scale-tick.is-big{stroke:var(--text);stroke-width:1.8}.ph-scale-needle{fill:var(--red)}.ph-scale-tube{fill:#0e1214;stroke:#3a3e41;stroke-width:1.4}.ph-scale-fill{fill:#6cc7ff8c}.ph-scale-lab,.ph-scale-unit{position:absolute;white-space:nowrap;color:var(--soft);font:600 11px var(--mono);line-height:1;pointer-events:none}.ph-scale-lab--h{transform:translate(-50%)}.ph-scale-lab--v{transform:translateY(-50%)}.ph-scale-unit{color:var(--yellow)}.ph-scale-name{color:var(--muted);font:500 11.5px var(--mono)}.ege-answer-text{width:100%;resize:vertical;min-height:140px;font:500 14px/1.55 var(--sans);padding:10px 12px}.ege-sc{display:flex;flex-direction:column;gap:12px;padding:16px;border-radius:16px;border:1px solid var(--line-3);background:var(--panel)}.ege-sc-note{margin:0;color:var(--body);font-size:14px;line-height:1.5}.ege-sc-mine summary{cursor:pointer;color:var(--muted);font:600 12px var(--mono)}.ege-sc-mine pre{margin:8px 0 0;padding:10px 12px;border-radius:10px;background:var(--panel-2);color:var(--soft);white-space:pre-wrap;font:500 13px/1.5 var(--mono)}.ege-sc-group{display:flex;flex-direction:column;gap:6px}.ege-sc-title{color:var(--soft);font:700 13px var(--sans)}.ege-sc-level{display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;align-items:start;text-align:left;cursor:pointer;padding:10px 12px;border-radius:12px;border:1px solid var(--line-4);background:var(--panel-2);color:var(--body);font:500 13.5px/1.45 var(--sans)}.ege-sc-level b{display:grid;place-items:center;height:26px;border-radius:8px;background:#1b1e21;color:var(--text);font:800 14px var(--mono)}.ege-sc-level.is-on{border-color:var(--blue);background:#6cc7ff14;color:var(--text)}.ege-sc-level.is-on b{background:var(--blue);color:#04121c}.ege-sc-level.is-locked{opacity:.45;cursor:not-allowed}.ege-sc-result{color:var(--green);font:700 14px var(--sans)}