:root{--bg: #f5f2ed;--surface: #fffdf9;--surface-soft: #f9f6f1;--text: #2e2925;--muted: #706861;--faint: #a49b92;--border: #e4ddd4;--border-strong: #d8cec3;--primary: #c96f50;--primary-deep: #a94f34;--primary-soft: #f6e4dc;--green: #547c68;--green-soft: #e5efe9;--danger: #bd604f;--danger-soft: #f8e8e5;--serif: Iowan Old Style, Baskerville, Charter, Georgia, "Songti SC", "STSong", serif;--sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;color:var(--text);background:var(--bg);font-family:var(--sans);font-synthesis:none}*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth}body{min-width:320px;margin:0;color:var(--text);background:var(--bg);font-size:14px;-webkit-font-smoothing:antialiased}button,input{font:inherit}button{color:inherit;cursor:pointer}button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px}.app-shell{min-height:100vh;padding-bottom:48px;background:radial-gradient(circle at 91% -7%,rgb(201 111 80 / 12%),transparent 33rem),radial-gradient(circle at 6% 48%,rgb(84 124 104 / 5%),transparent 28rem),var(--bg)}.global-header{position:sticky;z-index:10;top:0;border-bottom:1px solid rgb(228 221 212 / 86%);background:#f5f2ede0;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.header-inner,.workspace{width:min(1420px,calc(100% - 48px));margin:auto}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid rgb(201 111 80 / 35%);border-radius:13px;color:var(--primary-deep);background:var(--primary-soft);box-shadow:0 4px 12px #a94f341f}.brand>span:last-child{display:grid;gap:2px}.brand small{color:var(--faint);font:10px var(--mono);letter-spacing:.02em}.brand b{font-family:var(--serif);font-size:17px;letter-spacing:-.025em}.header-status{display:inline-flex;align-items:center;gap:7px;color:var(--green);font:600 10px var(--mono)}.header-status i{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 0 4px #547c681a}.workspace{display:grid;gap:18px;margin-top:24px}.intro-panel{display:flex;align-items:end;justify-content:space-between;gap:32px;padding:30px 32px;border:1px solid var(--border);border-radius:22px;background:#fffdf9d1;box-shadow:0 12px 35px #4430200d}.intro-panel>div:first-child{max-width:710px}.eyebrow{margin:0 0 8px;color:var(--primary-deep);font:600 10px var(--mono);letter-spacing:.1em;text-transform:uppercase}.intro-panel h1{margin:0;font-family:var(--serif);font-size:clamp(32px,3.4vw,48px);font-weight:600;line-height:1.13;letter-spacing:-.045em}.intro-panel>div>p:not(.eyebrow){max-width:650px;margin:14px 0 0;color:var(--muted);font-size:13px;line-height:1.8}.preset-panel{width:min(520px,100%);padding:13px;border:1px solid var(--border);border-radius:16px;background:var(--surface)}.preset-panel>span{display:block;margin:0 2px 8px;color:var(--faint);font:10px var(--mono)}.preset-panel>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.preset-panel button{min-width:0;display:grid;gap:4px;padding:9px 8px;border:1px solid var(--border);border-radius:10px;background:var(--surface-soft);text-align:left;transition:border-color .15s ease,background .15s ease}.preset-panel button:hover{border-color:#c96f5073;background:var(--primary-soft)}.preset-panel b{font-size:10px;white-space:nowrap}.preset-panel small{overflow:hidden;color:var(--faint);font-size:8px;line-height:1.3;text-overflow:ellipsis;white-space:nowrap}.content-grid{display:grid;grid-template-columns:minmax(370px,.8fr) minmax(0,1.2fr);align-items:start;gap:18px}.input-panel,.detail-panel,.plans-panel{border:1px solid var(--border);border-radius:20px;background:var(--surface);box-shadow:0 8px 28px #4430200d}.input-panel{padding:20px}.panel-heading,.plans-heading{display:flex;align-items:start;justify-content:space-between;gap:14px}.panel-heading .eyebrow,.plans-heading .eyebrow{margin-bottom:5px}.panel-heading h2,.plans-heading h2{margin:0;font-family:var(--serif);font-size:21px;font-weight:600;letter-spacing:-.03em}.reset-button,.result-actions button,.save-button{display:inline-flex;align-items:center;justify-content:center;gap:5px;border:0;border-radius:9px;font-size:10px;font-weight:650}.reset-button{padding:6px 8px;color:var(--muted);background:var(--surface-soft)}.reset-button:hover{color:var(--primary-deep);background:var(--primary-soft)}.input-notice{margin:13px 0 17px;padding:9px 10px;border-left:2px solid var(--primary);color:var(--muted);background:var(--surface-soft);font-size:10px;line-height:1.6}.field-group{min-width:0;margin:0;padding:14px 0 15px;border:0;border-top:1px solid 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