:root{--paper:#f7f4ee;--warm:#ece5da;--ink:#1b1b19;--muted:#77736c;--line:#d9d2c7;--accent:#343b31;--white:#fff;--safe-b:env(safe-area-inset-bottom,0px)}*{box-sizing:border-box}html{background:var(--paper);color:var(--ink);font-family:Manrope,"PingFang SC","Helvetica Neue",sans-serif}body{margin:0;min-height:100vh;background:var(--paper)}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}.shell{max-width:760px;margin:auto;padding:calc(18px + env(safe-area-inset-top,0px)) 20px calc(94px + var(--safe-b))}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:36px}.logo{width:118px;height:auto}.top-action{border:0;background:none;font-size:13px;color:var(--muted)}.eyebrow{margin:0 0 10px;letter-spacing:.14em;font-size:11px;color:var(--muted)}h1,h2,h3,p{margin-top:0}h1{font-family:"Noto Serif SC",serif;font-weight:400;font-size:clamp(35px,8vw,52px);line-height:1.22;letter-spacing:-.04em;margin-bottom:18px}h2{font-family:"Noto Serif 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