:root{--paper: #f7f4ee;--paper-2: #efe9dd;--card: #fffdf8;--ink: #22303a;--ink-soft: #5a6b76;--dai: #2b4c5e;--dai-deep: #1d3542;--zhu: #a53d2a;--zhu-bright: #d62828;--gold: #b98a3c;--line: #ddd4c4;--shadow: 0 2px 14px rgba(34, 48, 58, .07);--radius: 16px;--serif: "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "SimSun", serif;--sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:radial-gradient(1200px 500px at 50% -200px,rgba(43,76,94,.06),transparent),var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}.app{max-width:880px;margin:0 auto;padding:28px 18px 60px}.header{padding:10px 4px 22px;border-bottom:1px solid var(--line);margin-bottom:26px}.brand{display:flex;align-items:center;gap:16px}.brand h1{font-family:var(--serif);font-size:30px;letter-spacing:.12em;margin:0;color:var(--dai-deep)}.tagline{margin:2px 0 0;font-size:13px;color:var(--ink-soft);letter-spacing:.04em}.yy{flex:none}.yy-spin{animation:yy-rotate 6s linear infinite}@keyframes yy-rotate{to{transform:rotate(360deg)}}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 22px 24px;margin-bottom:22px}.card h2{font-family:var(--serif);font-size:20px;margin:6px 0 4px;color:var(--dai-deep);letter-spacing:.06em}.step-badge{display:inline-block;font-family:var(--serif);font-size:12px;letter-spacing:.2em;color:var(--zhu);border:1px solid rgba(165,61,42,.35);border-radius:999px;padding:2px 12px;background:#a53d2a0d}.hint{color:var(--ink-soft);font-size:13px;margin:4px 0 14px}.hint.zhu,.zhu{color:var(--zhu)}.error{color:var(--zhu);font-size:13px}.banner{background:#d6282814;border:1px solid rgba(214,40,40,.3);color:var(--zhu);border-radius:12px;padding:10px 16px;margin-bottom:18px;font-size:14px}.dropzone{border:1.5px dashed var(--line);border-radius:14px;background:var(--paper);min-height:180px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .2s,background .2s;overflow:hidden}.dropzone:hover{border-color:var(--dai)}.dropzone-over{border-color:var(--zhu);background:#a53d2a0d}.dropzone-has{cursor:default;border-style:solid;background:#000}.dropzone-inner{text-align:center;color:var(--ink-soft);padding:30px}.dropzone-icon{font-size:34px;margin-bottom:8px}.preview{display:block;width:100%;max-height:420px;border-radius:10px;background:#000}.meta-row{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:14px;font-size:13px;color:var(--ink-soft)}.meta-row b{color:var(--ink)}.sliders{display:grid;gap:10px;margin-bottom:16px}.slider-row{display:grid;grid-template-columns:130px 1fr 74px;align-items:center;gap:12px;font-size:13px}.slider-label{color:var(--ink-soft)}.slider-value{font-variant-numeric:tabular-nums;color:var(--dai-deep);text-align:right}input[type=range]{accent-color:var(--zhu);width:100%}.btn-row{display:flex;gap:10px;flex-wrap:wrap}.btn{appearance:none;border:none;border-radius:10px;padding:10px 22px;font-size:14px;font-family:var(--sans);letter-spacing:.05em;cursor:pointer;transition:transform .12s,box-shadow .12s,opacity .12s;text-decoration:none;display:inline-block}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:linear-gradient(160deg,var(--zhu) 0%,var(--zhu-bright) 100%);color:#fff;box-shadow:0 2px 8px #a53d2a47}.btn-primary:hover:not(:disabled){box-shadow:0 4px 14px #a53d2a59}.btn-ghost{background:transparent;color:var(--dai);border:1px solid var(--dai)}.btn-download{margin-top:12px}.progress-block{margin-top:16px}.progress-bar{height:8px;background:var(--paper-2);border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--dai),var(--zhu));border-radius:999px;transition:width .25s}.progress-text{font-size:12px;color:var(--ink-soft);margin-top:6px;font-variant-numeric:tabular-nums}.result-summary{margin-top:14px;border-top:1px dashed var(--line);padding-top:12px}.fallback-note{background:#b98a3c14;border-left:3px solid var(--gold);border-radius:0 8px 8px 0;padding:8px 12px;margin:10px 0 0}.chart-wrap{margin:10px 0 16px;border:1px solid var(--line);border-radius:12px;padding:10px 10px 6px;background:var(--paper)}.chart-legend{display:flex;gap:18px;font-size:12px;color:var(--ink-soft);padding:4px 2px 2px}.dot{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px;vertical-align:-1px}.dot-dai{background:var(--dai)}.dot-zhu{background:#d6282859;border:1px solid var(--zhu-bright)}.seg-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}.seg-table{width:100%;border-collapse:collapse;font-size:13px;min-width:620px}.seg-table th{font-family:var(--serif);font-weight:600;color:var(--dai-deep);text-align:left;padding:9px 10px;background:var(--paper);border-bottom:1px solid var(--line);white-space:nowrap}.seg-table td{padding:7px 10px;border-bottom:1px solid var(--line);vertical-align:middle}.seg-table tr:last-child td{border-bottom:none}.row-off{opacity:.45}.time-cell{white-space:nowrap}.time-cell input{width:64px}.tilde{margin:0 4px;color:var(--ink-soft)}.seg-table input[type=number],.seg-table select,.seg-table .label-input{font:inherit;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:7px;padding:4px 6px}.seg-table .label-input{width:104px}.seg-table input[type=number]:focus,.seg-table select:focus,.seg-table .label-input:focus{outline:2px solid rgba(43,76,94,.25);border-color:var(--dai)}.peak-cell{font-variant-numeric:tabular-nums;color:var(--zhu)}.ops-cell{white-space:nowrap}.mini-btn{border:1px solid var(--line);background:#fff;border-radius:6px;width:24px;height:24px;line-height:1;cursor:pointer;color:var(--dai);margin-right:3px;font-size:12px}.mini-btn:hover:not(:disabled){border-color:var(--dai)}.mini-btn:disabled{opacity:.35;cursor:not-allowed}.mini-btn-danger:hover:not(:disabled){border-color:var(--zhu-bright);color:var(--zhu-bright)}.seg-footer{border-top:1px dashed var(--line);padding-top:12px}.grade-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin-bottom:14px}.grade-card{border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;cursor:pointer;transition:border-color .15s,background .15s;background:var(--paper)}.grade-card:hover{border-color:var(--dai)}.grade-card-on{border-color:var(--zhu);background:#a53d2a0d}.grade-card input{accent-color:var(--zhu)}.grade-name{font-family:var(--serif);font-weight:600;color:var(--dai-deep);margin:2px 0}.grade-desc{font-size:12px;color:var(--ink-soft)}.check-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin-bottom:16px;cursor:pointer}.check-row input{accent-color:var(--zhu)}.output-block{margin-top:16px}.footer{text-align:center;color:var(--ink-soft);font-size:12px;margin-top:34px;border-top:1px solid var(--line);padding-top:18px}.footer p{margin:2px 0}.footer-sub{opacity:.75;letter-spacing:.08em}@media (max-width: 560px){.app{padding:18px 12px 48px}.brand h1{font-size:24px}.card{padding:16px 14px 18px}.slider-row{grid-template-columns:96px 1fr 62px;gap:8px}.meta-row{gap:6px 14px}}