:root{--ink:#17211c;--muted:#68736d;--paper:#f4f1e9;--surface:#fffdf8;--green:#174c3c;--green-light:#dbe8df;--gold:#c69b51;--line:#d9d8cf;--error:#a83a32;--shadow:0 20px 60px rgba(31,50,41,0.1)}*{box-sizing:border-box}html{background:var(--paper);color:var(--ink)}body{margin:0;min-height:100vh;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,system-ui,sans-serif;background:linear-gradient(180deg,#ffffff,#f8fafc 55%,#fffaf0)}a{color:inherit}button,input,textarea{font:inherit}.site-header{height:64px;padding:0 max(24px,calc((100vw - 1120px) / 2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(23,76,60,.12);background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.brand{text-decoration:none;font-size:1.05rem;font-weight:800;letter-spacing:-.01em;color:#0f172a}.header-note{color:var(--muted);font-size:.85rem;letter-spacing:.08em}.page-shell{width:min(1120px,calc(100% - 40px));margin:0 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