:root{--bg: #f7f5ef;--panel: #ffffff;--ink: #202124;--muted: #667085;--line: #dedbd2;--primary: #13795b;--primary-dark: #0b5c46;--accent: #d97706;--danger: #b42318;--ok-bg: #e7f6ee;--danger-bg: #fff0ed;--shadow: 0 18px 50px rgba(32, 33, 36, .09)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}button,input{font:inherit}.topbar{align-items:center;background:#fffffff0;border-bottom:1px solid var(--line);display:flex;gap:24px;justify-content:space-between;min-height:68px;padding:14px clamp(18px,4vw,44px);position:sticky;top:0;z-index:10}.brand,.nav{align-items:center;display:flex}.brand{font-weight:700;gap:10px}.brand-mark{align-items:center;background:var(--ink);border-radius:8px;color:#fff;display:inline-flex;height:36px;justify-content:center;width:36px}.nav{flex-wrap:wrap;gap:14px;justify-content:flex-end}.nav a,.link-button,.text-button,.nav-user{color:var(--muted);font-weight:700}.link-button,.text-button{background:none;border:0;cursor:pointer;padding:0}.page{margin:0 auto;max-width:1180px;padding:34px clamp(18px,4vw,44px) 56px}.tool-shell,.split-layout,.admin-grid,.feature-grid{display:grid;gap:28px;grid-template-columns:minmax(0,.9fr) minmax(320px,1.1fr)}.tool-shell{align-items:center;min-height:calc(100vh - 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