:root{--ink: #101820;--ink-soft: #3a4654;--paper: #e8eef2;--panel: rgba(255, 255, 255, .72);--line: rgba(16, 24, 32, .12);--signal: #0f8f78;--signal-deep: #0a6b5a;--accent: #d97706;--danger: #b42318;--shadow: 0 24px 60px rgba(16, 24, 32, .12);--radius: 18px;--font-display: "Syne", sans-serif;--font-body: "Instrument Sans", sans-serif}*,*:before,*:after{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:var(--font-body);color:var(--ink);background:var(--paper);line-height:1.5;overflow-x:hidden}.atmosphere{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:radial-gradient(1200px 700px at 12% -10%,#c5ddd6 0%,transparent 55%),radial-gradient(900px 600px at 92% 8%,#d6cfc0 0%,transparent 50%),linear-gradient(165deg,#f3f6f8,#dfe8ec 45%,#cfd9e0)}.orb{position:absolute;border-radius:50%;filter:blur(40px);opacity:.55;animation:drift 18s ease-in-out infinite 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transparent;font-family:var(--font-body);font-size:.95rem;font-weight:600;cursor:pointer;text-decoration:none;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}.btn:disabled{cursor:default;opacity:.7}.btn-primary{background:var(--ink);color:#f4f7f5;box-shadow:0 10px 30px #10182038}.btn-primary:hover{transform:translateY(-1px);background:#1a2530}.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-soft);font-weight:500}.btn-download{background:var(--signal);color:#fff;box-shadow:0 10px 28px #0f8f7847}.btn-download:hover{background:var(--signal-deep);transform:translateY(-1px)}.hero-stage{animation:rise 1s cubic-bezier(.22,1,.36,1) .18s both}.stage-frame{position:relative}.stage-video{position:relative;aspect-ratio:16 / 10;border-radius:calc(var(--radius) + 4px);overflow:hidden;background:linear-gradient(145deg,rgba(16,24,32,.08),transparent 40%),linear-gradient(25deg,#1d3a36,#2f4f48 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scan{0%{transform:translateY(0)}to{transform:translateY(420%)}}.wm{position:absolute;pointer-events:none;-webkit-user-select:none;user-select:none}.wm-qr-grid{top:-18%;right:-18%;bottom:-18%;left:-18%;opacity:.55;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='72' viewBox='0 0 72 72'%3E%3Cg fill='%230b1220'%3E%3Crect x='6' y='6' width='22' height='22'/%3E%3Crect x='44' y='6' width='22' height='22'/%3E%3Crect x='6' y='44' width='22' height='22'/%3E%3Crect x='34' y='34' width='8' height='8'/%3E%3Crect x='48' y='48' width='16' height='16'/%3E%3Crect x='38' y='12' width='4' height='4'/%3E%3Crect x='12' y='38' width='4' height='4'/%3E%3C/g%3E%3C/svg%3E");background-size:78px 78px;animation:grid-qr 11s linear infinite;mix-blend-mode:multiply}.wm-text-grid{top:-20%;right:-30%;bottom:-20%;left:-30%;opacity:.5;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='70' viewBox='0 0 220 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grid-dots{0%{transform:translate(0)}to{transform:translate(40px,-48px)}}.stage-caption{margin:.75rem 0 0;font-size:.85rem;color:var(--ink-soft)}.tool{padding:0 clamp(1.25rem,4vw,3rem) 4rem;display:grid;grid-template-columns:1.2fr .8fr;gap:1.5rem;align-items:start}.tool-panel{background:var(--panel);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.25rem,3vw,2rem);min-height:240px;box-shadow:var(--shadow);transition:border-color .2s ease,box-shadow .2s ease}.tool-panel.dragover{border-color:var(--signal);box-shadow:0 0 0 3px #0f8f782e,var(--shadow)}.tool-title{margin:0 0 .4rem;font-family:var(--font-display);font-size:1.45rem;letter-spacing:-.03em}.tool-copy{margin:0;color:var(--ink-soft);max-width:46ch}.file-chip{display:flex;flex-wrap:wrap;gap:.5rem 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var(--line)}.layers li:last-child{border-bottom:1px solid var(--line)}.layer-index{font-family:var(--font-display);font-weight:700;color:var(--signal-deep);font-size:.95rem}.layers strong{display:block;font-family:var(--font-display);letter-spacing:-.02em;margin-bottom:.2rem}.layers p{margin:0;color:var(--ink-soft);font-size:.92rem}.adsense{margin:0 clamp(1.25rem,4vw,3rem) 2rem;padding:1rem 1.15rem 1.25rem;border:1px dashed rgba(16,24,32,.2);border-radius:12px;background:#ffffff8c}.adsense-label{margin:0 0 .65rem;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}.adsense-slot{position:relative;min-height:90px;display:flex;align-items:center;justify-content:center}.adsense-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;text-align:center;padding:1rem;color:var(--ink-soft);font-size:.9rem;background:repeating-linear-gradient(-45deg,rgba(16,24,32,.03),rgba(16,24,32,.03) 8px,transparent 8px,transparent 16px);border-radius:8px;pointer-events:none}.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem;padding:0 clamp(1.25rem,4vw,3rem) 2rem;color:var(--ink-soft);font-size:.88rem}.foot span:first-child{font-family:var(--font-display);font-weight:700;color:var(--ink)}@media(max-width:920px){.hero,.tool{grid-template-columns:1fr}.hero{min-height:auto;padding-top:1rem}.headline{max-width:none}.hero-stage{order:-1}}@media(max-width:560px){.top{flex-direction:column;align-items:flex-start}.brand{font-size:clamp(3rem,16vw,4.2rem)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}