:root{--color-bg: #faf9f5;--color-surface: #ffffff;--color-surface-muted: #f3f0e8;--color-border: #e6e1d6;--color-border-soft: #efebe3;--color-text: #171613;--color-text-secondary: #5f5b52;--color-text-muted: #8a857a;--color-primary: #171613;--color-primary-text: #ffffff;--color-accent: #8a5a32;--color-danger: #b42318;--color-success: #287a3e;--font-sans: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-serif: Georgia, "Noto Serif SC", "Songti SC", serif;--radius: 8px}[data-theme=dark]{--color-bg: #15130f;--color-surface: #1f1c17;--color-surface-muted: #29251e;--color-border: #373127;--color-border-soft: #2c2821;--color-text: #f4efe5;--color-text-secondary: #c4baaa;--color-text-muted: #8f8677;--color-primary: #f4efe5;--color-primary-text: #15130f;--color-accent: #d2a06a}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:var(--color-text);background:var(--color-bg);font-family:var(--font-sans);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{color:inherit}.app-shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:14px clamp(16px,4vw,40px);background:color-mix(in srgb,var(--color-bg) 88%,transparent);border-bottom:1px solid var(--color-border-soft);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--color-text);text-decoration:none;font-weight:650}.brand-mark{display:grid;width:30px;height:30px;place-items:center;border-radius:var(--radius);color:var(--color-primary-text);background:var(--color-primary)}.nav-tabs{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:4px}.nav-tabs button,.link-button{border:0;border-radius:999px;background:transparent;color:var(--color-text-secondary);cursor:pointer;padding:8px 12px}.nav-tabs button.active,.nav-tabs button:hover,.link-button:hover{background:var(--color-surface-muted);color:var(--color-text)}.main-layout{width:min(1440px,100%);margin:0 auto;padding:28px clamp(16px,4vw,40px) 48px}.intro{max-width:880px;margin-bottom:22px}.eyebrow{margin:0 0 12px;color:var(--color-accent);font-size:14px;font-weight:650}.intro h1{margin:0;max-width:700px;font-size:clamp(34px,4.8vw,56px);line-height:1.05;letter-spacing:0}.intro>p:last-child{max-width:720px;margin:18px 0 0;color:var(--color-text-secondary);font-family:var(--font-serif);font-size:19px;line-height:1.55}.workspace{display:grid;grid-template-columns:minmax(250px,.8fr) minmax(320px,1.15fr) minmax(320px,1fr);gap:16px;align-items:start}.two-column{display:grid;grid-template-columns:minmax(280px,.8fr) minmax(320px,1.2fr);gap:16px;align-items:start}.panel,.flat-card,.result-card,.contact-card{border:1px solid var(--color-border-soft);border-radius:var(--radius);background:var(--color-surface);box-shadow:none}.panel{padding:18px}.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}.section-heading p{margin:0;font-weight:700}.section-heading span{color:var(--color-text-muted);font-size:13px;line-height:1.45;text-align:right}.section-heading.secondary{margin-top:20px}.contact-list,.result-list,.contact-grid{display:grid;gap:10px}.contact-card{display:grid;gap:6px;width:100%;padding:14px;text-align:left;cursor:pointer}.contact-card:hover,.contact-card.selected,.flat-card:hover,.result-card:hover{background:var(--color-surface-muted)}.contact-card strong,.flat-card strong{font-size:15px}.contact-card span,.flat-card small,.result-card span{color:var(--color-text-muted);font-size:13px}.quiet-box{margin-top:14px;padding:14px;border-radius:var(--radius);background:var(--color-surface-muted)}.quiet-box span{color:var(--color-text-muted);font-size:13px}.quiet-box p{margin:8px 0 0;line-height:1.5}label{display:grid;gap:8px;margin-bottom:14px;color:var(--color-text-secondary);font-size:14px}input,select,textarea{width:100%;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-bg);color:var(--color-text);padding:11px 12px;outline:none}textarea{resize:vertical;line-height:1.5}input:focus,select:focus,textarea:focus{border-color:var(--color-accent)}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.tone-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}.chip{border:1px solid var(--color-border);border-radius:999px;background:var(--color-bg);cursor:pointer;padding:8px 12px;color:var(--color-text-secondary)}.chip.selected{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-primary-text)}.mode-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:8px 0 16px}.mode-strip button{display:grid;gap:5px;min-height:78px;border:1px solid var(--color-border-soft);border-radius:var(--radius);background:var(--color-bg);cursor:pointer;padding:10px;text-align:left}.mode-strip button.selected{border-color:var(--color-primary);background:var(--color-surface-muted)}.mode-strip span{color:var(--color-text-muted);font-size:12px;line-height:1.35}.primary-button{width:100%;border:0;border-radius:999px;background:var(--color-primary);color:var(--color-primary-text);cursor:pointer;padding:12px 18px;font-weight:700}.primary-button:disabled{cursor:not-allowed;opacity:.6}.status-line{margin:12px 0 0;color:var(--color-accent);font-size:13px}.empty-state{display:grid;min-height:220px;place-items:center;padding:24px;border:1px dashed var(--color-border);border-radius:var(--radius);color:var(--color-text-muted);text-align:center}.result-card,.flat-card{padding:14px}.result-card p,.flat-card p{margin:0 0 10px;font-family:var(--font-serif);font-size:18px;line-height:1.5}.result-card div{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.result-card button{border:1px solid var(--color-border);border-radius:999px;background:transparent;cursor:pointer;padding:7px 12px}.flat-card{display:grid;gap:4px;margin-bottom:10px}.model-form{margin-bottom:18px}.quick-input{display:grid;gap:8px;margin-bottom:14px;padding-bottom:14px;border-bottom:1px solid var(--color-border-soft)}.inline-actions{display:flex;justify-content:flex-start;margin:-4px 0 14px}.secondary-button{border:1px solid var(--color-border);border-radius:999px;background:transparent;cursor:pointer;padding:8px 12px}.secondary-button:disabled{cursor:not-allowed;opacity:.6}.check-row{display:flex;align-items:center;gap:10px}.check-row 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li.active{background:var(--color-surface-muted);color:var(--color-accent)}@media(max-width:1080px){.workspace,.two-column{grid-template-columns:1fr}.contact-list{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}}@media(max-width:720px){.topbar{align-items:flex-start;flex-direction:column}.nav-tabs{justify-content:flex-start;width:100%}.nav-tabs button{flex:1 1 auto}.main-layout{padding-top:18px}.intro h1{font-size:32px;line-height:1.08}.intro>p:last-child{font-size:17px}.field-grid,.mode-strip{grid-template-columns:1fr}.panel{padding:14px}.section-heading{align-items:flex-start;flex-direction:column;gap:6px}.section-heading span{text-align:left}}