:root{--ink:#242b33;--muted:#68737f;--paper:#fbfbfc;--deep:#202b3a;--steel:#9aa8b4;--silver:#d8dee4;--blue:#4c78b6;--violet:#7564b7;--teal:#3a8b83;--amber:#d2a254;--rust:#b8644a;--line:#d8dde3;--soft:#f0f3f6;--warm:#f8f2e7;--max:1450px;--shadow:0 16px 44px rgba(31,38,48,.12)}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.68}a{color:#375fa0;text-underline-offset:.18em}a:hover{color:#8f5630}.wrap{width:min(var(--max),calc(100% - 36px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:10px;background:#fff;padding:10px;z-index:100}
header{position:sticky;top:0;z-index:50;background:rgba(251,251,252,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.top{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:900}.mark{width:46px;height:46px;border-radius:11px;background:var(--deep);position:relative;overflow:hidden}.mark:before{content:"Pt";position:absolute;left:8px;top:5px;color:#eef1f4;font:900 20px/1 system-ui}.mark:after{content:"78";position:absolute;right:7px;bottom:7px;color:var(--amber);font:800 12px/1 system-ui}
nav ul{display:flex;gap:12px;list-style:none;padding:0;margin:0;flex-wrap:wrap}nav a{text-decoration:none;color:var(--ink);font-size:.86rem;font-weight:780}.menu{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 11px;font-weight:800}
.hero{background:linear-gradient(120deg,#eef1f5 0,#fbfbfc 47%,#f5f0fa 75%,#faf3e7 100%);border-bottom:1px solid var(--line)}.heroGrid{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;padding:72px 0}.eyebrow{font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;font-weight:900;color:#7657a6}h1,h2,h3{line-height:1.14;letter-spacing:-.028em}h1{font-size:clamp(2.45rem,6vw,4.9rem);margin:.23em 0 .29em}.hero p,.pageHero p{font-size:1.13rem;color:#5f6975;max-width:900px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;padding:12px 18px;border-radius:999px;border:1px solid #b8c0c7;background:#fff;color:var(--ink);font-weight:850;text-decoration:none}.primary{background:var(--deep);border-color:var(--deep);color:#fff}
.reactor{height:420px;position:relative;border-radius:22px;overflow:hidden;border:1px solid #d0d5dc;background:linear-gradient(145deg,#242d3b,#384659);box-shadow:var(--shadow)}.vessel{position:absolute;left:50%;top:54%;width:150px;height:250px;transform:translate(-50%,-50%);border:9px solid #c7d0d7;border-radius:55px 55px 35px 35px}.vessel:before{content:"";position:absolute;left:17px;right:17px;top:38px;height:100px;background:repeating-linear-gradient(90deg,#d4dbe1 0 8px,#46566c 8px 14px);border-radius:10px}.vessel:after{content:"CATALYST";position:absolute;left:19px;right:19px;bottom:36px;text-align:center;color:#d7a956;font-weight:900;font-size:.75rem;letter-spacing:.12em}.pipe{position:absolute;height:12px;background:#7e6cbf}.p1{left:38px;right:calc(50% + 72px);top:132px}.p2{left:calc(50% + 72px);right:38px;top:240px;background:#3f958d}.atom{position:absolute;width:31px;height:31px;border-radius:50%;background:#d5dce1;box-shadow:0 0 0 7px rgba(213,220,225,.12)}.a1{left:68px;top:105px}.a2{left:135px;top:105px;background:#7e6cbf}.a3{right:96px;top:213px;background:#3f958d}.a4{right:155px;top:213px;background:#d7a956}.flow{position:absolute;left:40px;right:40px;bottom:40px;height:4px;background:linear-gradient(90deg,#7e6cbf,#d8dee4,#3f958d)}.tag{position:absolute;left:24px;top:20px;background:#f8f8fb;color:#3a4050;border-radius:10px;padding:9px 13px;font-weight:850}
.section{padding:62px 0}.soft{background:var(--soft)}.warm{background:var(--warm)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:23px;box-shadow:0 8px 24px rgba(31,42,49,.055)}.card h3{margin-top:0}.kicker{font-size:.74rem;text-transform:uppercase;letter-spacing:.11em;color:#7657a6;font-weight:900}.pageHero{background:linear-gradient(120deg,#eff2f5,#f6f0fa,#faf2e5);border-bottom:1px solid var(--line);padding:52px 0 43px}.pageHero h1{font-size:clamp(2.15rem,5vw,4rem);max-width:1120px}.breadcrumbs{padding-top:15px;font-size:.9rem;color:var(--muted)}.content{max-width:980px}.content p{font-size:1.045rem}.note{margin:26px 0;padding:18px 20px;border-left:5px solid var(--teal);background:#eef8f6;border-radius:0 12px 12px 0}.warning{border-left-color:var(--rust);background:#fff0eb}.related{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.related a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px;text-decoration:none;font-weight:800}.tool{max-width:900px;background:#fff;border:1px solid #d2d8de;border-radius:17px;padding:26px;box-shadow:var(--shadow)}.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-weight:800}.field input,.field select{padding:11px 12px;border:1px solid #a5afb8;border-radius:8px;font:inherit}.result{margin-top:17px;padding:17px;background:#eef8f6;border:1px solid #c6dfda;border-radius:10px}.result strong{font-size:1.35rem;color:#34786f}
footer{background:#202b3a;color:#e2e7ec;margin-top:60px}.foot{display:grid;grid-template-columns:1.05fr 1.95fr;gap:40px;padding:46px 0}.footlinks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px 18px}.footlinks a{color:#f2f5f8;text-decoration:none}.fine{border-top:1px solid #485364;padding:17px 0 26px;color:#b6c0ca;font-size:.89rem}.cookie{background:none;border:0;padding:0;color:inherit;text-decoration:underline;font:inherit;cursor:pointer}
@media(max-width:1060px){nav{display:none}.menu{display:block}nav.open{display:block;position:absolute;top:78px;left:0;right:0;background:#fbfbfc;padding:17px;border-bottom:1px solid var(--line)}nav.open ul{width:min(var(--max),calc(100% - 36px));margin:auto;display:grid;grid-template-columns:repeat(2,1fr)}.heroGrid{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.related{grid-template-columns:repeat(2,minmax(0,1fr))}.foot{grid-template-columns:1fr}}
@media(max-width:640px){.wrap{width:min(var(--max),calc(100% - 24px))}.grid,.grid2,.formgrid,.related{grid-template-columns:1fr}.footlinks{grid-template-columns:repeat(2,1fr)}.reactor{height:350px}.section{padding:45px 0}}