:root{--bg-0: #fff9de;--bg-1: #fff1be;--bg-2: #dff2ff;--ink: #2c2418;--muted: #6f634d;--line: rgba(84, 67, 30, .18);--card: rgba(255, 249, 224, .76);--card-strong: rgba(255, 243, 194, .87);--accent-yellow: #ffc93b;--accent-soft: #ffe57b;--accent-blue: #88cdf5;--radius: 24px;--pattern-x: 0px;--pattern-y: 0px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Sora,Noto Sans TC,sans-serif;color:var(--ink);background:radial-gradient(circle at 12% 14%,rgba(255,204,62,.34),transparent 31%),radial-gradient(circle at 84% 20%,rgba(136,205,245,.3),transparent 36%),radial-gradient(circle at 50% 85%,rgba(255,234,132,.34),transparent 40%),linear-gradient(165deg,var(--bg-0),var(--bg-1),var(--bg-2));min-height:100vh;overflow-x:hidden}.smile-pattern{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.32}.grain{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1;pointer-events:none;opacity:.1;background-image:radial-gradient(rgba(84,67,30,.1) .8px,transparent .8px),radial-gradient(rgba(255,255,255,.6) .6px,transparent .6px);background-size:6px 6px,10px 10px;background-position:0 0,3px 3px}.top-nav{position:fixed;top:20px;right:24px;z-index:20}.brand{display:inline-flex;align-items:center;gap:9px}.brand-name{font-weight:700;font-size:15px;letter-spacing:.08em}.logo-mark{position:relative;width:26px;height:26px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#ffec99,#ffc93b);border:1px solid rgba(84,67,30,.2);box-shadow:0 3px 8px #8d6d1b3d}.logo-mark .eye{position:absolute;top:7px;width:4px;height:6px;border-radius:50%;background:#2f2718}.logo-mark .eye.left{left:8px}.logo-mark .eye.right{right:8px}.logo-mark .smile{position:absolute;left:6px;bottom:6px;width:14px;height:7px;border-bottom:2px solid #2f2718;border-radius:0 0 14px 14px}.nav-cta{text-decoration:none;color:#1a1200;border:none;background:#ffd84d;padding:9px 20px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em;box-shadow:0 4px 14px #c88c0059;transition:background .2s ease,transform .15s ease}.nav-cta:hover{background:#ffca00;transform:translateY(-1px)}.hero{position:relative;z-index:5;min-height:100vh;display:grid;place-items:center;padding:120px 20px 80px}.hero-inner{max-width:920px;text-align:center}.hero-kicker{display:inline-block;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:22px}.hero h1{font-size:clamp(52px,9vw,108px);line-height:1.03;letter-spacing:-.03em;margin-bottom:16px;text-wrap:balance}.hero p{font-size:clamp(17px,2.4vw,22px);color:var(--muted);line-height:1.6;margin:0 auto 30px;max-width:620px}.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.btn{text-decoration:none;border-radius:999px;padding:12px 22px;font-size:14px;font-weight:600;transition:transform .22s ease,box-shadow .22s ease}.btn-primary{color:#2f2718;background:linear-gradient(145deg,#fff1a3,#ffc93b);border:1px solid rgba(84,67,30,.22);box-shadow:0 10px 24px #b17f143d}.btn-ghost{color:#3c3220;background:#fff8dd94;border:1px solid rgba(84,67,30,.14)}.btn:hover{transform:translateY(-2px)}.story{position:relative;z-index:4;height:520vh}.story-sticky{position:sticky;top:0;height:100vh;overflow:hidden}#three-canvas,#particle-canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}#three-canvas{z-index:2}#particle-canvas{z-index:3;pointer-events:none;opacity:.75}.story-overlay{position:absolute;left:50%;transform:translate(-50%);bottom:9vh;width:min(780px,calc(100% - 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