:root{--bg:#f5f7fb;--surface:#fff;--soft:#f8fafc;--ink:#0f172a;--muted:#475569;--muted2:#64748b;--line:#d8e1ea;--line2:#b7c5d8;--blue:#124a8f;--dark:#0b1220;--blueSoft:#eaf2ff;--green:#0f766e;--greenSoft:#ecfdf5;--shadow:0 18px 48px rgba(15,23,42,.08);--shadow2:0 8px 26px rgba(15,23,42,.08);--xl:28px;--lg:20px;--md:14px;--max:1180px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:radial-gradient(circle at top right,rgba(18,74,143,.10),transparent 32rem),linear-gradient(180deg,#fff 0%,var(--bg) 42%,#eef3f8 100%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}
a{color:var(--blue);text-decoration-thickness:.08em;text-underline-offset:.17em}
a:hover{text-decoration-thickness:.12em}
:focus-visible{outline:3px solid rgba(37,99,235,.42);outline-offset:3px}
.skip{position:absolute;top:-4rem;left:1rem;z-index:999;padding:.75rem 1rem;color:#fff;background:var(--dark);border-radius:12px;text-decoration:none}
.skip:focus{top:1rem}
.wrap{width:min(var(--max),calc(100% - 2rem));margin:0 auto}
.header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(216,225,234,.78);background:rgba(255,255,255,.92);backdrop-filter:blur(14px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 0}
.brand{display:inline-flex;align-items:center;gap:.75rem;color:var(--ink);text-decoration:none;font-weight:850;letter-spacing:-.015em}
.brand:hover{text-decoration:none}
.mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--blue),var(--dark));box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 12px 24px rgba(15,23,42,.16)}
.brandText{display:grid;line-height:1.12}
.brandText small{color:var(--muted2);font-weight:750;font-size:.78rem}
.links{display:flex;align-items:center;justify-content:flex-end;gap:.65rem;flex-wrap:wrap}
.links a:not(.btn){color:var(--ink);font-weight:760;text-decoration:none;padding:.45rem}
.links a:not(.btn):hover{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:46px;padding:.78rem 1.08rem;border-radius:999px;border:1px solid transparent;font-weight:850;cursor:pointer;text-decoration:none;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease,background-color .15s ease;white-space:nowrap}
.btn:hover{transform:translateY(-1px);text-decoration:none}
.primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--dark));box-shadow:0 14px 30px rgba(18,74,143,.22)}
.primary:hover{color:#fff}
.secondary{color:var(--ink);background:#fff;border-color:var(--line2)}
.secondary:hover,.ghost:hover{color:var(--blue);border-color:var(--blue)}
.ghost{color:var(--ink);background:transparent;border-color:rgba(15,23,42,.12)}
.breadcrumbs{font-size:.9rem;color:var(--muted2);margin:1rem 0}
.breadcrumbs a{text-decoration:none;color:var(--muted)}
.hero{padding:4.2rem 0 2rem}
.heroGrid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:1.25rem;align-items:stretch}
.panel,.card,.tableBox,.sourceBox,.modeCard,.notice,.callout,.contactCard{background:rgba(255,255,255,.94);border:1px solid rgba(216,225,234,.92);border-radius:var(--xl);box-shadow:var(--shadow)}
.panel{padding:clamp(1.25rem,3vw,2rem)}
.eyebrow{display:inline-flex;align-items:center;gap:.45rem;margin-bottom:1rem;padding:.42rem .72rem;border:1px solid rgba(18,74,143,.16);border-radius:999px;color:var(--blue);background:rgba(234,242,255,.86);font-size:.9rem;font-weight:850}
h1,h2,h3{margin:0;line-height:1.08;letter-spacing:-.035em}
h1{max-width:15ch;font-size:clamp(2.18rem,5vw,4.35rem);margin-bottom:1rem}
h2{font-size:clamp(1.55rem,3vw,2.45rem);margin-bottom:.6rem}
h3{font-size:1.15rem;margin-bottom:.42rem}
p{margin:0;color:var(--muted)}
.lead{max-width:68ch;margin-bottom:1.35rem;font-size:clamp(1.05rem,1.7vw,1.22rem)}
.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:1rem}
.micro{color:var(--muted2);font-size:.95rem}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin-top:1.2rem}
.fact{padding:.9rem;border:1px solid var(--line);border-radius:var(--md);background:#fff}
.fact strong{display:block;color:var(--ink);margin-bottom:.14rem}
.fact span{display:block;color:var(--muted2);font-size:.92rem}
.systemCard{overflow:hidden;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow2)}
.systemTop{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.8rem .9rem;background:#f1f5f9;border-bottom:1px solid var(--line)}
.dots{display:flex;gap:.35rem}.dots span{width:10px;height:10px;border-radius:999px;background:#cbd5e1}
.systemTitle{color:var(--muted);font-size:.88rem;font-weight:850}
.flow{display:grid;gap:.76rem;padding:1rem}
.flowStep{display:grid;grid-template-columns:auto 1fr;gap:.82rem;align-items:start;padding:.9rem;border:1px solid var(--line);border-radius:var(--md);background:var(--soft)}
.num{display:grid;place-items:center;width:2rem;height:2rem;border-radius:999px;color:var(--blue);background:var(--blueSoft);font-weight:900}
.flowStep strong{display:block;color:var(--ink);margin-bottom:.12rem}.flowStep span{color:var(--muted);font-size:.94rem}
.section{padding:2rem 0}.head{max-width:78ch;margin-bottom:1.15rem}.head p{margin-top:.55rem;font-size:1.02rem}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.card{padding:1.1rem;border-radius:var(--lg);box-shadow:none}
.list{display:grid;gap:.7rem;margin:.9rem 0 0;padding:0;list-style:none}.list li{display:grid;grid-template-columns:auto 1fr;gap:.65rem;color:var(--muted)}
.dot{display:inline-grid;place-items:center;width:1.35rem;height:1.35rem;margin-top:.08rem;border-radius:999px;color:var(--blue);background:var(--blueSoft);font-weight:900;font-size:.82rem}
.notice{margin-top:.95rem;padding:.95rem 1rem;border-radius:var(--md);color:var(--muted);box-shadow:none}.notice strong{color:var(--ink)}
.callout,.sourceBox,.contactCard{padding:1.2rem;border-radius:var(--xl);box-shadow:var(--shadow2)}
.modeGrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem}.modeCard{padding:1rem;border-radius:var(--lg);box-shadow:none}
.modeCard.highlight{border-color:rgba(15,118,110,.24);background:linear-gradient(180deg,#fff 0%,var(--greenSoft) 100%)}
.pill{display:inline-flex;align-items:center;min-height:1.6rem;padding:.18rem .55rem;border-radius:999px;color:var(--blue);background:var(--blueSoft);font-size:.76rem;font-weight:900;white-space:nowrap;letter-spacing:.02em}.modeCard.highlight .pill{color:var(--green);background:#dff7ef}
.tableBox{overflow-x:auto;border-radius:var(--xl)}table{width:100%;min-width:760px;border-collapse:collapse;background:#fff}
caption{text-align:left;padding:1rem 1rem .2rem;color:var(--ink);font-weight:900}th,td{padding:1rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
thead th{color:#fff;background:var(--dark);border-bottom:0}tbody th{color:var(--ink);background:var(--soft);width:26%}tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
.sourceList{display:grid;gap:.65rem;margin:1rem 0 0;padding:0;list-style:none}.sourceList a{font-weight:760}
.faq{display:grid;gap:.85rem}details{background:#fff;border:1px solid var(--line);border-radius:var(--md);padding:.95rem 1rem}summary{cursor:pointer;color:var(--ink);font-weight:850}details p{margin-top:.65rem}
.contactOpts{display:grid;gap:.75rem;margin-top:1rem}.contactLink{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.95rem 1rem;border:1px solid var(--line);border-radius:var(--md);color:var(--ink);background:#fff;text-decoration:none;font-weight:850}.contactLink:hover{color:var(--blue);border-color:var(--blue)}
.footer{padding:2rem 0 3rem}.footerCard{padding:1.15rem;border-radius:var(--xl);background:#fff;border:1px solid var(--line)}.footerTop{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-bottom:1rem;margin-bottom:1rem;border-bottom:1px solid var(--line)}.footerLinks{display:flex;flex-wrap:wrap;gap:.8rem 1rem;justify-content:flex-end}.fine{color:var(--muted2);font-size:.92rem}
@media(max-width:1040px){.heroGrid,.grid3,.grid2{grid-template-columns:1fr}h1{max-width:100%}}
@media(max-width:720px){.header{position:static}.nav,.links,.actions,.footerTop,.footerLinks{align-items:stretch;flex-direction:column}.btn{width:100%}.hero{padding-top:2.4rem}.facts,.modeGrid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}