:root{--paper: #f1ebdc;--paper-2: #fbf7ec;--paper-3: #e6ddc7;--ink: #17160f;--ink-2: #55524a;--ink-3: #8b8577;--pink: #ff3b6b;--blue: #2340d8;--yellow: #ffc531;--mint: #0fb37e;--line: 2px solid var(--ink);--r: 14px;--r-sm: 10px;--shadow: 3px 3px 0 var(--ink);--shadow-sm: 2px 2px 0 var(--ink);--font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;--font-body: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, "Liberation Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-body);color:var(--ink);background:var(--paper);min-height:100vh;-webkit-font-smoothing:antialiased;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:radial-gradient(circle at 1px 1px,rgba(23,22,15,.09) 1px,transparent 1.1px),linear-gradient(180deg,#f6f1e4,#f0e9d9 55%,#e9e1cd);background-size:7px 7px,100% 100%}#app{min-height:100vh}h1,h2,h3{font-family:var(--font-display);font-weight:900;letter-spacing:-.02em;line-height:1.15}button,input,output{font-family:inherit;color:inherit}button{cursor:pointer;touch-action:manipulation;border:none;background:none}a{color:inherit}.mono-tag{display:inline-block;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border:var(--line);border-radius:999px;background:var(--paper-2)}.btn-primary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:11px 20px;border:var(--line);border-radius:var(--r-sm);font-weight:800;font-size:15px;text-decoration:none;box-shadow:var(--shadow);transition:transform .1s ease,box-shadow .1s ease,background .15s ease}.btn-primary{background:var(--pink)}.btn-ghost{background:var(--paper-2)}.btn-primary:active,.btn-ghost:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--ink)}.btn-primary:disabled,.btn-ghost:disabled{opacity:.45;cursor:not-allowed;box-shadow:var(--shadow-sm);transform:none}.btn-lg{min-height:54px;padding:15px 32px;font-size:17px}.btn-sm{min-height:38px;padding:8px 16px;font-size:14px}.btn-block{width:100%}.logo{display:inline-flex;align-items:center;gap:10px;padding:0;font-family:var(--font-display)}.logo-badge{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;background:var(--pink);border:var(--line);border-radius:10px;font-size:17px;font-weight:900;box-shadow:var(--shadow-sm);animation:badge-wobble 2.4s ease-in-out infinite}.logo-badge-sm{width:28px;height:28px;font-size:15px;box-shadow:none}.logo-text{font-size:17px;font-weight:900;letter-spacing:-.01em}@keyframes badge-wobble{0%,to{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-3px) rotate(1deg)}}.site-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:1080px;margin:0 auto;padding:18px 20px}.hero{max-width:860px;margin:0 auto;padding:30px 20px 46px;text-align:center}.hero h1{margin-top:20px;font-size:clamp(34px,7vw,66px);line-height:1.08}.hl{font-style:normal;background-image:linear-gradient(transparent 62%,var(--yellow) 62%,var(--yellow) 94%,transparent 94%);padding:0 .1em}.hero-sub{max-width:34em;margin:18px auto 0;color:var(--ink-2);font-size:clamp(15px,2.2vw,17px);line-height:1.8}.hero-actions{margin-top:28px;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}.hero-note{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--ink-3)}.sticker-strip{overflow:hidden;border-top:var(--line);border-bottom:var(--line);background:var(--yellow)}.sticker-track{display:flex;width:max-content;animation:marquee 26s linear infinite}.sticker{padding:11px 24px;font-family:var(--font-display);font-size:15px;font-weight:900;white-space:nowrap;border-right:2px dashed rgba(23,22,15,.4)}@keyframes marquee{0%{transform:translate(0)}to{transform:translate(-50%)}}.hero-drop{max-width:640px;margin:44px auto 0;padding:28px 24px;text-align:center;background:var(--paper-2);border:var(--line);border-radius:var(--r);box-shadow:var(--shadow);transition:background .15s ease}.hero-drop.dragover{background:#ffe9f0}.hero-drop-head{display:flex;align-items:center;justify-content:center;gap:10px}.hero-drop-icon{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border:var(--line);border-radius:8px;background:var(--mint);font-size:17px;font-weight:900}.hero-drop-title{font-family:var(--font-display);font-size:20px;font-weight:900}.hero-drop-sub{margin-top:10px;color:var(--ink-2);font-size:14px;line-height:1.7}.samples-row{margin-top:20px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.sample-btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:7px 15px 7px 8px;background:var(--paper-2);border:var(--line);border-radius:999px;font-size:14px;font-weight:700;box-shadow:var(--shadow-sm);transition:transform .1s ease,box-shadow .1s ease,background .15s ease}.sample-btn:active{transform:translate(2px,2px);box-shadow:0 0 0 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