:root{--bg-dark:#0d1420;--bg-light:#fff;--bg-soft:#f5f7fa;--text-dark:#374151;--text-light:#d1d5db;--accent:#4f46e5;--accent-hover:#4338ca;--border:#e5e7eb;--shadow:0 10px 35px rgba(0,0,0,.10);--radius:18px}html,body{margin:0;padding:0}body{font-family:"Inter",Arial,Helvetica,sans-serif;line-height:1.6;color:var(--text-dark);background:var(--bg-light);text-align:center;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}a:focus{outline:2px solid rgba(79,70,229,.35);outline-offset:2px;border-radius:10px}.wrap{max-width:1100px;margin:0 auto;padding:0 18px}.dark-section{background:var(--bg-dark);color:var(--text-light);padding:72px 18px 42px}.dark-section h1{margin:0 0 10px;font-size:2.35rem;line-height:1.15;color:#93c5fd;letter-spacing:-.2px}.dark-section p{margin:0 auto;max-width:720px;font-size:1.1rem;color:var(--text-light)}.logo-plain{width:96px;height:96px;max-width:96px;aspect-ratio:1/1;object-fit:cover;border-radius:12px;box-shadow:0 6px 26px rgba(0,0,0,.55);margin:0 auto 22px;display:block}.light-section{background:var(--bg-soft);padding:44px 0 32px}.content{max-width:900px;margin:0 auto}.meta{margin:0 0 18px;font-size:.98rem;color:#111827}details{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin:14px auto;padding:14px 16px;text-align:left}summary{list-style:none;cursor:pointer;font-weight:800;font-size:1.12rem;color:var(--accent);display:flex;align-items:center;gap:10px}summary::-webkit-details-marker{display:none}summary::before{content:"▶";font-size:1rem;color:var(--accent);transform:translateY(-1px)}details[open] summary::before{content:"▼"}details p{margin:10px 0 0;color:var(--text-dark)}.cta{padding:18px 0 6px}.button{display:inline-block;background:linear-gradient(90deg,#4f46e5 0,#6366f1 100%);color:#fff!important;padding:14px 28px;font-weight:800;border-radius:14px;text-decoration:none!important;box-shadow:0 10px 28px rgba(79,70,229,.32);transition:transform .08s ease,opacity .12s ease}.button:hover{opacity:.95;transform:translateY(-1px);text-decoration:none}.note{margin:18px auto 0;max-width:900px;color:#111827;font-size:1rem}.note a{font-weight:700}@media (max-width:600px){.dark-section{padding:60px 14px 34px}.dark-section h1{font-size:2rem}.dark-section p{font-size:1rem}details{padding:12px 14px}summary{font-size:1.02rem}.button{padding:12px 20px;font-size:.98rem}}