:root{--ink:#102a43;--muted:#64748b;--paper:#f7f3ea;--cream:#fffdf8;--sea:#0b536d;--aqua:#74c6c3;--gold:#d8a84e;--line:rgba(16,42,67,.13)}*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-height:100vh;background:var(--paper);color:var(--ink);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;position:relative;overflow-x:hidden}.aurora{position:fixed;border-radius:999px;filter:blur(90px);opacity:.2;pointer-events:none}.aurora-one{width:440px;height:440px;background:#5dc4c1;right:-180px;top:-150px}.aurora-two{width:400px;height:400px;background:#ecc778;left:-220px;bottom:-240px}.topbar{height:80px;display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:auto;padding:0 28px;position:relative;z-index:2;border-bottom:1px solid var(--line)}.brand{font-family:Georgia,"Songti SC",serif;font-size:22px;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:.06em}.brand-mark{display:inline-grid;place-items:center;width:32px;height:32px;border:1px solid var(--sea);border-radius:50%;margin-right:10px;color:var(--sea)}nav{display:flex;align-items:center;gap:24px}nav a,.link-button{color:var(--ink);text-decoration:none;background:none;border:0;font:inherit;cursor:pointer;padding:8px}.shell{max-width:1180px;margin:0 auto;padding:64px 28px 80px;position:relative;z-index:1}.hero{max-width:820px;padding:70px 0 90px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.22em;color:var(--sea);text-transform:uppercase;margin-bottom:18px}.hero h1,.page-head h1,.reading-card h1,.auth-card h1{font:600 clamp(42px,7vw,78px)/1.05 Georgia,"Songti SC",serif;letter-spacing:-.04em;margin:0 0 24px}.hero h1 em{color:var(--sea);font-weight:400}.hero>p{font-size:18px;line-height:1.9;color:var(--muted);max-width:650px}.actions{display:flex;gap:14px;margin-top:36px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:4px;border:1px solid var(--ink);text-decoration:none;font-weight:650;cursor:pointer;font-size:15px}.primary{background:var(--ink);color:white;box-shadow:5px 5px 0 var(--aqua)}.ghost{background:transparent;color:var(--ink)}.light{background:var(--cream);color:var(--ink);border-color:transparent}.wide{width:100%}
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.switch-label input:checked+.switch{background:var(--sea)}
.switch-label input:checked+.switch:after{transform:translateX(20px)}
.switch-label input:focus-visible+.switch{outline:3px solid rgba(11,83,109,.22);outline-offset:2px}
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.switch-copy strong{font-size:14px}
.switch-copy small{font-size:12px;font-weight:400;line-height:1.5;color:var(--muted)}
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