:root{--navy:#0b1226;--amber:#f5b82e;--teal:#3dd6c6;--ink:#17203a;--muted:#5b6785;--bg:#f4f6fb;--line:#e2e7f2}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;line-height:1.55}
a{color:inherit}
.hero{position:relative;height:290px;background:var(--navy);overflow:hidden;color:#fff}
.hero svg{position:absolute;inset:0;width:100%;height:100%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,12,28,.88) 0,rgba(7,12,28,.55) 40%,transparent 75%)}
.hero-text{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 1.5rem;height:100%;display:flex;flex-direction:column;justify-content:center}
.brand{text-decoration:none;font-size:clamp(3.4rem,10vw,5.8rem);font-weight:800;letter-spacing:-.03em;line-height:1}
.brand .b{color:var(--amber)}
.hero-text p{margin:.7rem 0 0;max-width:27rem;color:#c9d4f5;font-size:1.1rem}
.bar{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(11,18,38,.06)}
.bar-in{max-width:1200px;margin:0 auto;padding:.6rem 1.5rem;display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap}
.search{position:relative;flex:1 1 280px;max-width:440px}
.search input{width:100%;padding:.6rem 1rem;border:1.5px solid var(--line);border-radius:999px;font:inherit;background:var(--bg)}
.search input:focus{outline:none;border-color:var(--amber);background:#fff;box-shadow:0 0 0 3px rgba(245,184,46,.25)}
.res{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px rgba(11,18,38,.15);overflow:hidden}
.res a{display:flex;gap:.6rem;align-items:center;padding:.6rem .9rem;text-decoration:none;border-bottom:1px solid var(--line)}
.res a:hover{background:#fff8e6}.res .none{padding:.8rem .9rem;color:var(--muted)}
.links{display:flex;gap:.3rem;margin-left:auto}
.links a{padding:.5rem 1rem;border-radius:999px;text-decoration:none;font-weight:600}
.links a:hover{background:#fff3d6}.links a.on{background:var(--navy);color:#fff}
.layout{max-width:1200px;margin:0 auto;padding:1.5rem;display:grid;grid-template-columns:250px 1fr;gap:1.5rem;align-items:start}
.wrap{max-width:900px;margin:0 auto;padding:1.5rem}
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:1rem 1.1rem;margin-bottom:1rem}
.panel h2{margin:0 0 .6rem;font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.quick{list-style:none;margin:0;padding:0}
.quick a{display:block;padding:.5rem .6rem;border-radius:8px;text-decoration:none;font-weight:600}
.quick a:hover{background:#fff3d6;transform:translateX(3px)}
.fact{background:linear-gradient(135deg,#0b1226,#1b2a5e);color:#dfe7ff;border:0}
.fact h2{color:var(--amber)}.fact p{margin:0}
.sh{font-size:1.4rem;margin:0 0 .8rem}
section{margin-bottom:2rem}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1rem}
.card{display:block;text-decoration:none;background:#fff;border:1px solid var(--line);border-top:4px solid var(--amber);border-radius:14px;padding:1rem 1.1rem;transition:.15s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(11,18,38,.1)}
.card h3{margin:.5rem 0 .3rem;font-size:1.05rem;line-height:1.3}.card p{margin:0;color:var(--muted);font-size:.93rem}
.badge{display:inline-block;padding:.1rem .6rem;border-radius:999px;font-size:.75rem;font-weight:700;background:#e6eeff;color:#2457c5}
.badge[data-t=tool]{background:#e0f7f4;color:#0b7f74}.badge[data-t=article]{background:#fff3d6;color:#9a6200}.badge[data-t=video]{background:#efe9ff;color:#6b46c1}
.sample{font-size:.7rem;color:var(--muted);margin-left:.4rem}
.row{display:flex;gap:.9rem;align-items:center;padding:.8rem 1rem;background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:.6rem;text-decoration:none}
.row:hover{border-color:var(--amber)}.row b{display:block}.row small{color:var(--muted)}
.row .d{margin-left:auto;white-space:nowrap;color:var(--muted);font-size:.85rem}
.soon{text-align:center;padding:2.5rem 1rem;background:#fff;border:2px dashed var(--line);border-radius:14px;color:var(--muted)}
.intro{color:var(--muted);margin-top:-.4rem}
footer{text-align:center;color:var(--muted);padding:2rem 1rem;font-size:.9rem}
@keyframes fl{50%{transform:translate(0,-9px)}}
.fl{animation:fl 4.5s ease-in-out infinite}.fl.b2{animation-duration:6s}.fl.b3{animation-duration:5.2s}
@media (prefers-reduced-motion:reduce){.fl{animation:none}}
@media (max-width:820px){.layout{grid-template-columns:1fr}.links{margin-left:0;width:100%}.hero{height:240px}}
.back{display:inline-block;margin-bottom:.5rem;color:var(--muted);text-decoration:none}.back:hover{color:var(--ink)}
.mail{font-size:1.2rem;font-weight:700;text-decoration:none}.mail:hover{color:#9a6200}
.calc{max-width:430px;margin:1rem auto;background:#fff;border:1px solid var(--line);border-radius:18px;padding:1rem;box-shadow:0 10px 30px rgba(11,18,38,.08)}
.calc input{width:100%;font:1.35rem ui-monospace,Consolas,monospace;padding:.7rem .9rem;border:1.5px solid var(--line);border-radius:12px;background:var(--bg)}
.calc input:focus{outline:none;border-color:var(--amber)}
.out{min-height:3rem;text-align:right;font-size:1.9rem;font-weight:700;padding:.4rem .2rem;overflow-x:auto}
.out.pre{font-size:1.1rem;color:var(--muted);font-weight:400;padding-top:.9rem}.out.err{color:#c0392b;font-size:1rem}
.keys{display:grid;grid-template-columns:repeat(5,1fr);gap:.45rem}
button.k,.keys button,.btns button{padding:.7rem 0;border:1px solid var(--line);border-radius:10px;background:#f8f9fd;font:inherit;font-weight:600;cursor:pointer}
.keys button:hover,.btns button:hover{background:#fff3d6;border-color:var(--amber)}
.keys .fn{background:#eef3ff}.keys .op{background:#fff3d6}.keys .cl{background:#ffe9e5}.keys .eq{background:var(--navy);color:#fff}
.mode{margin-bottom:.6rem}.mode button{padding:.3rem .9rem;border:1px solid var(--line);border-radius:999px;background:#fff;font:inherit;font-weight:700;cursor:pointer}
.fn{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;flex-wrap:wrap}
.fn input{flex:1 1 220px;padding:.5rem .8rem;border:1.5px solid var(--line);border-radius:10px;font:1rem ui-monospace,Consolas,monospace}
.fn input:focus{outline:none;border-color:var(--amber)}.sw{width:14px;height:14px;border-radius:50%}.fn .e{color:#c0392b;flex-basis:100%}
#cv{width:100%;height:460px;display:block;border:1px solid var(--line);border-radius:14px;background:#fff;touch-action:none;cursor:grab}
.btns{display:flex;gap:.5rem;align-items:center;margin:.6rem 0;flex-wrap:wrap}.btns button{padding:.45rem 1rem}
.info{color:var(--muted);font-size:.9rem;margin-left:auto;font-family:ui-monospace,Consolas,monospace}
@media (max-width:820px){#cv{height:340px}}