:root,[data-theme=light]{--text-xs: clamp(.75rem, .7rem + .25vw, .875rem);--text-sm: clamp(.875rem, .8rem + .35vw, 1rem);--text-base: clamp(1rem, .95rem + .25vw, 1.125rem);--text-lg: clamp(1.125rem, 1rem + .75vw, 1.5rem);--text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.1rem);--text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3rem);--color-bg: #f7f6f2;--color-surface: #fbfbf8;--color-surface-2: #f2f0eb;--color-surface-offset: #ece9e2;--color-border: #d7d2c8;--color-divider: #e2ddd3;--color-text: #24211c;--color-text-muted: #6f6a63;--color-text-faint: #aaa49a;--color-primary: #0d6b6f;--color-primary-highlight: #d9ebe8;--color-success: #2f6d3b;--color-success-highlight: #deebdf;--color-warning: #8f4c1f;--color-warning-highlight: #ecdccf;--color-error: #9a375c;--color-error-highlight: #efdde4;--radius-md: .85rem;--radius-lg: 1.25rem;--radius-xl: 1.6rem;--radius-full: 999px;--shadow-sm: 0 1px 2px rgba(25,20,15,.06);--font-display: "Newsreader", Georgia, serif;--font-body: "Noto Sans TC", sans-serif}[data-theme=dark]{--color-bg: #171614;--color-surface: #1e1c19;--color-surface-2: #26231f;--color-surface-offset: #2e2a25;--color-border: #3a3631;--color-divider: #2e2a26;--color-text: #ece7de;--color-text-muted: #b5aea2;--color-text-faint: #7c756a;--color-primary: #6cb0b1;--color-primary-highlight: #243839;--color-success: #7fc08a;--color-success-highlight: #26382a;--color-warning: #d4a06b;--color-warning-highlight: #3b3026;--color-error: #e08bae;--color-error-highlight: #402a33}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);font-size:var(--text-base);line-height:1.65}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;border:none}textarea,input,select{width:100%;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius-md);padding:.9rem 1rem;outline:none}.app{max-width:1320px;margin:0 auto;padding:1.5rem}.topbar,.modal-header,.history-item,.panel-header{display:flex;justify-content:space-between;gap:1rem}.topbar{align-items:center;margin-bottom:1rem}.logo{display:inline-flex;align-items:center;gap:.75rem;font-weight:800}.logo svg{width:34px;height:34px;color:var(--color-primary)}.theme-toggle{width:46px;height:46px;border-radius:50%;background:var(--color-surface);border:1px solid color-mix(in oklab,var(--color-text) 10%,transparent)}.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:1.5rem;margin-bottom:1.5rem}.card,.panel,.modal-card{background:var(--color-surface);border:1px solid color-mix(in oklab,var(--color-text) 10%,transparent);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm)}.hero-main{padding:2rem;background:linear-gradient(140deg,var(--color-surface),var(--color-surface-2))}.eyebrow,.chip,.badge{display:inline-flex;align-items:center;padding:.4rem .75rem;border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:800}.eyebrow,.badge.primary{background:var(--color-primary-highlight);color:var(--color-primary)}.badge.success{background:var(--color-success-highlight);color:var(--color-success)}.badge.warning{background:var(--color-warning-highlight);color:var(--color-warning)}.chip{background:var(--color-surface-2);color:var(--color-text-muted)}h1,.modal-title{font-family:var(--font-display)}h1{font-size:var(--text-2xl);line-height:1.05;margin:1rem 0;max-width:12ch}.lede,.muted,.panel-meta,.hint,.footer-note,.history-meta,.status-copy{color:var(--color-text-muted)}.hero-stats,.status-grid{display:grid;gap:1rem}.hero-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.status-grid{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:1.5rem}.mini,.status-card{padding:1rem;border-radius:var(--radius-lg);background:var(--color-surface-2);border:1px solid color-mix(in oklab,var(--color-text) 8%,transparent)}.mini strong{display:block;font-size:var(--text-lg)}.hero-side{padding:1.5rem;display:flex;flex-direction:column;justify-content:space-between;gap:1rem}.feature-list{padding-left:1.2rem;margin:1rem 0 0}.chip-row,.footer-actions,.history-actions{display:flex;flex-wrap:wrap;gap:.75rem}.toolbar{display:grid;grid-template-columns:2fr 1fr auto auto auto auto;gap:.75rem;margin-bottom:1.5rem}.btn{min-height:46px;padding:.8rem 1rem;border-radius:var(--radius-md);font-weight:800;border:1px solid transparent}.btn-primary{background:var(--color-primary);color:#fff}.btn-soft{background:var(--color-surface-2);color:var(--color-text);border-color:color-mix(in oklab,var(--color-text) 10%,transparent)}.btn-ghost{background:var(--color-surface);color:var(--color-text);border-color:color-mix(in oklab,var(--color-text) 12%,transparent)}.btn-danger{background:var(--color-error-highlight);color:var(--color-error)}.layout{display:grid;grid-template-columns:1.15fr 1.15fr .9fr;gap:1.25rem}.panel{min-height:600px;display:flex;flex-direction:column;overflow:hidden}.panel-header{align-items:flex-start;padding:1rem 1.25rem;border-bottom:1px solid var(--color-divider);background:color-mix(in oklab,var(--color-surface-2) 70%,white 30%)}.panel-title{font-size:var(--text-sm);font-weight:800;display:flex;align-items:center;gap:.6rem}.panel-body{padding:1.25rem;display:flex;flex-direction:column;gap:1rem;flex:1}.dot{width:10px;height:10px;border-radius:50%;background:var(--color-text-faint)}.dot.live{background:#df5c5c;box-shadow:0 0 0 6px #df5c5c26}.dot.ai{background:var(--color-primary)}.dot.summary{background:var(--color-success)}.empty{flex:1;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--color-text-muted);border:1px dashed color-mix(in oklab,var(--color-text) 16%,transparent);border-radius:var(--radius-lg);padding:1.5rem;background:color-mix(in oklab,var(--color-surface-2) 65%,transparent)}textarea.editor{min-height:440px;resize:vertical;background:transparent;border:none;padding:0;line-height:1.8}.error-box{margin-bottom:1rem;padding:1rem 1.1rem;border-radius:var(--radius-lg);background:var(--color-error-highlight);color:var(--color-error)}.footer-note{margin-top:1rem;font-size:var(--text-xs)}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#14120e73;display:flex;align-items:center;justify-content:center;padding:1rem;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.modal-card{width:min(860px,100%);max-height:82vh;overflow:auto;padding:1.5rem}.history-list{display:grid;gap:.75rem}.history-item{align-items:center;border:1px solid color-mix(in oklab,var(--color-text) 10%,transparent);background:var(--color-surface-2);padding:1rem;border-radius:var(--radius-lg)}@media (max-width:1120px){.hero,.layout{grid-template-columns:1fr}.toolbar{grid-template-columns:1fr 1fr repeat(4,auto)}.status-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.panel{min-height:480px}}@media (max-width:760px){.app{padding:1rem}.hero-stats,.status-grid,.toolbar{grid-template-columns:1fr}.topbar,.history-item{flex-direction:column;align-items:flex-start}h1{max-width:none}}.api-toggle-row{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin:-.5rem 0 1rem;flex-wrap:wrap}.api-toggle{display:inline-flex;align-items:center;gap:.6rem;font-size:var(--text-sm);font-weight:700}.api-toggle input{width:auto}.api-note code{background:var(--color-surface-2);padding:.15rem .35rem;border-radius:.4rem}.history-search{margin:.5rem 0 1rem}.history-preview{margin-top:.35rem;font-size:var(--text-xs);max-width:60ch}.filter-bar{display:flex;gap:.75rem;flex-wrap:wrap;margin:-.3rem 0 1rem}.filter-bar select{max-width:260px}.history-version{font-size:var(--text-xs)}.grouped-history-list{display:grid;gap:.9rem}.history-group{border:1px solid color-mix(in oklab,var(--color-text) 10%,transparent);border-radius:var(--radius-lg);background:color-mix(in oklab,var(--color-surface) 82%,var(--color-surface-2));overflow:hidden}.history-group-header{width:100%;display:flex;justify-content:space-between;gap:1rem;align-items:flex-start;padding:1rem 1.1rem;background:transparent;border:none;text-align:left}.history-group-header:hover{background:color-mix(in oklab,var(--color-primary) 4%,var(--color-surface))}.history-group-toggle{color:var(--color-primary);font-size:var(--text-sm);white-space:nowrap}.history-group-versions{display:grid;gap:.75rem;padding:0 1rem 1rem}.compare-card{max-width:960px;width:100%}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:1rem 1.5rem 1.5rem}.compare-column{background:color-mix(in oklab,var(--color-surface) 85%,var(--color-surface-2));border:1px solid color-mix(in oklab,var(--color-text) 10%,transparent);border-radius:var(--radius-lg);padding:1rem}.compare-label{font-weight:700;color:var(--color-primary);margin-bottom:.7rem}.compare-text{white-space:pre-wrap;font-size:var(--text-sm);line-height:1.7}