:root{--page: #f5f7fb;--surface: #ffffff;--surface-soft: #f8fafc;--text: #18202f;--muted: #647084;--line: #dfe5ee;--line-strong: #c8d2df;--primary: #0b7f74;--primary-hover: #08665d;--accent: #e05a47;--blue: #3157d5;--warning: #b9730f;--danger: #b93535;--success: #197b4b;--shadow: 0 18px 42px rgba(26, 36, 58, .08);--radius: 8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:Noto Sans SC,sans-serif;color:var(--text);background:radial-gradient(circle at top left,rgba(11,127,116,.08),transparent 28%),linear-gradient(90deg,rgba(49,87,213,.03) 1px,transparent 1px),linear-gradient(rgba(49,87,213,.025) 1px,transparent 1px),var(--page);background-size:28px 28px;overflow-x:hidden}button,input,select,textarea{font:inherit}button{-webkit-user-select:none;user-select:none}img{display:block;max-width:100%}.ambient{display:none}.page-shell{width:min(1480px,calc(100vw - 32px));margin:16px auto 32px}.hero{display:grid;grid-template-columns:minmax(0,1fr) 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1;object-fit:cover;border-radius:6px;border:1px solid var(--line)}.modal-actions{justify-content:flex-end}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 1120px){.hero,.workspace{grid-template-columns:1fr}}@media (max-width: 760px){.page-shell{width:min(100vw - 16px,100%);margin:8px auto 22px}.hero,.hero-copy,.hero-panel,.card{padding:12px}.hero h1{font-size:32px}.grid.two,.grid.three,.preview-grid,.edit-preview-grid,.action-row,.section-head{grid-template-columns:1fr;flex-direction:column;align-items:stretch}.hero-metrics{grid-template-columns:1fr}}