.ro {
  --font: 'Host Grotesk', 'Segoe UI Variable Text', 'Segoe UI', system-ui, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-hover: 160ms;
  --r-s: 8px;
  --r-m: 12px;
  --r-panel: 14px;
  --r-well: 16px;
  --r-card: 24px;
  --wall: #E6E8EB;
  --wall-hi: #F2F3F5;
  --wall-lo: #D9DCE0;
  --floor: #E1E4E8;
  --ground: #E9EBEE;
  --ground-alt: #F2F3F5;
  --glow: rgba(255, 255, 255, 0.78);
  --surface: #FFFFFF;
  --surface-tint: #F8F9FA;
  --surface-2: #F1F2F4;
  --surface-3: #E1E4E8;
  --chrome: #ECEEF1;
  --ink: #1D2125;
  --ink-2: #3A4148;
  --muted: #59616A;
  --faint: #8D959D;
  --line: #D8DCE0;
  --line-strong: #BDC3CA;
  --leader: #727B84;
  --action: #2E5A87;
  --action-hover: #254C73;
  --action-press: #1E3F60;
  --action-ink: #FFFFFF;
  --action-soft: #E1E8F0;
  --accent: #1D2125;
  --brand: #2E5A87;
  --warn: #B23A2E;
  --warn-ink: #8A2B21;
  --warn-bg: #F6E7E4;
  --ok-ink: #2F5A2A;
  --ok-bg: #E3EDE0;
  --shadow-rgb: 24, 29, 35;
  --band: #D3D9E0;
  --bar: #A2ABB5;
  --runway: #C5CBD2;
  --runway-paint: #FFFFFF;
  --part-descent: #3D6A97;
  --part-descent-track: #DAE2EC;
  --part-g: #BD625C;
  --part-g-track: #F1DDDB;
  --part-centerline: #4D7B45;
  --part-centerline-track: #DCE6D9;
  --part-tdz: #A47E37;
  --part-tdz-track: #EEE5D2;
  --part-stability: #397B84;
  --part-stability-track: #D7E6E8;
  --part-sideslip: #9B582F;
  --part-sideslip-track: #EFE1D4;
  --shadow-object:
    0 0 0 0.5px rgba(var(--shadow-rgb), 0.10),
    0 1px 1px rgba(var(--shadow-rgb), 0.04),
    0 3px 6px -1px rgba(var(--shadow-rgb), 0.05),
    0 12px 24px -6px rgba(var(--shadow-rgb), 0.07),
    0 32px 64px -18px rgba(var(--shadow-rgb), 0.13),
    0 72px 140px -40px rgba(var(--shadow-rgb), 0.17);
  --shadow-panel:
    0 0 0 0.5px rgba(var(--shadow-rgb), 0.09),
    0 1px 2px rgba(var(--shadow-rgb), 0.05),
    0 4px 12px -4px rgba(var(--shadow-rgb), 0.06);
  --shadow-control: 0 1px 2px rgba(var(--shadow-rgb), 0.10);
  --margin: clamp(12px, 4.8px + 2.4vw, 48px);
  --frame: 1504px;
  --gap: clamp(16px, 2vw, 40px);
  --nav-h: clamp(56px, 3.2vw, 72px);
  --sec-pad: clamp(40px, 2.7vw, 68px);
  --display: clamp(34px, 3.2vw, 76px);
  --h1: clamp(30px, 2.5vw, 60px);
  --h2: clamp(25px, 1.85vw, 44px);
  --h3: clamp(17.5px, 1vw, 23px);
  --lede: clamp(16px, 0.9vw, 20.5px);
  --body: clamp(15.5px, 0.78vw, 17px);
  --small: clamp(13.5px, 0.68vw, 15.5px);
  --btn-h: clamp(44px, 2.35vw, 50px);
  --btn-pad: clamp(18px, 1.2vw, 25px);
  --btn-text: clamp(14.5px, 0.78vw, 16.5px);
  --btn-s-h: clamp(36px, 1.85vw, 40px);
  --btn-s-pad: clamp(13px, 0.9vw, 18px);
  --btn-s-text: clamp(13.5px, 0.7vw, 15px);
  --panel-pad: clamp(16px, 1.15vw, 25px);
  --well-pad: clamp(13px, 0.9vw, 20px);
  --note-pad-y: clamp(13px, 0.85vw, 17px);
  --note-pad-x: clamp(15px, 1vw, 19px);
  --note-title: clamp(15px, 0.88vw, 18px);
  --fig: clamp(27px, 1.94vw, 42.5px);
  --grade: clamp(50px, 3.5vw, 82px);
  --tile-size: clamp(38px, 2.1vw, 44px);
  --label: 12.5px;
  color-scheme: light;
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--body);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
.ro ::selection { background: var(--action); color: var(--action-ink); }
.ro :focus-visible { outline: 2px solid var(--action); outline-offset: 3px; }
.ro a { color: inherit; text-underline-offset: 0.22em; text-decoration-thickness: 1px; }
.ro *, .ro *::before, .ro *::after { box-sizing: border-box; }
.ro h1, .ro h2, .ro h3, .ro h4, .ro p, .ro figure, .ro dl, .ro dd, .ro blockquote { margin: 0; }
.ro ul.plain, .ro ol.plain { margin: 0; padding: 0; list-style: none; }
.ro button { font: inherit; color: inherit; }
.ro img, .ro svg { display: block; }
.ro .ico { flex: none; width: 1.2em; height: 1.2em; }
.ro .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.ro .nw { white-space: nowrap; }
.ro .muted { color: var(--muted); }

.ro .wrap { width: min(100% - 2 * var(--margin), var(--frame)); margin-inline: auto; }
.ro .narrow { width: min(100% - 2 * var(--margin), 960px); margin-inline: auto; }
.ro .grid12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gap); }

.ro .studio {
  background:
    radial-gradient(52% 46% at 50% 58%, var(--glow) 0%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, var(--wall-hi) 0%, var(--wall) 38%, var(--wall-lo) 78%, var(--floor) 90%, var(--ground-alt) 100%);
}
.ro .page-head { padding: clamp(32px, 2.8vw, 68px) 0 clamp(28px, 2.2vw, 56px); text-align: center; }
.ro .page-head .kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: clamp(10px, 0.8vw, 16px); font-size: var(--small); font-weight: 600; color: var(--muted); }
.ro .page-head h1 { max-width: 20ch; margin: 0 auto; font-size: var(--h1); line-height: 1.04; font-weight: 600; letter-spacing: -0.032em; text-wrap: balance; }
.ro .page-head .lede { max-width: 46ch; margin: clamp(12px, 1.1vw, 24px) auto 0; font-size: var(--lede); line-height: 1.45; color: var(--ink-2); text-wrap: pretty; }
.ro .page-head .acts { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: clamp(16px, 1.3vw, 26px); }

.ro .sec { padding: var(--sec-pad) 0; }
.ro .sec-head { max-width: 896px; margin: 0 auto clamp(24px, 2.2vw, 52px); text-align: center; }
.ro .sec-head h2 { font-size: var(--h2); line-height: 1.06; font-weight: 600; letter-spacing: -0.03em; text-wrap: balance; }
.ro .sec-head p { max-width: 46ch; margin: clamp(10px, 1vw, 22px) auto 0; font-size: var(--lede); line-height: 1.45; color: var(--ink-2); text-wrap: pretty; }
.ro h3.t { font-size: var(--h3); line-height: 1.2; font-weight: 600; letter-spacing: -0.015em; }

.ro .btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5em; height: var(--btn-h); padding: 0 var(--btn-pad); border: 0; border-radius: 999px; font: inherit; font-size: var(--btn-text); font-weight: 600; line-height: 1; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color var(--t-hover) ease, box-shadow var(--t-hover) ease, color var(--t-hover) ease; }
.ro .btn .ico { width: 1.15em; height: 1.15em; }
.ro .btn.buy, .ro .btn.primary { background: var(--action); color: var(--action-ink); box-shadow: 0 1px 2px rgba(var(--shadow-rgb), 0.16), 0 6px 16px -6px rgba(var(--shadow-rgb), 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.18); }
.ro .btn.buy:hover, .ro .btn.primary:hover { background: var(--action-hover); }
.ro .btn.buy:active, .ro .btn.primary:active { background: var(--action-press); }
.ro .btn.quiet { background: var(--surface); color: var(--ink); box-shadow: 0 0 0 0.5px rgba(var(--shadow-rgb), 0.14), 0 1px 2px rgba(var(--shadow-rgb), 0.08); }
.ro .btn.quiet:hover { background: var(--surface-2); }
.ro .btn.danger { background: var(--warn-bg); color: var(--warn-ink); }
.ro .btn.danger:hover { background: #F0D9D5; }
.ro .btn.small { height: var(--btn-s-h); padding: 0 var(--btn-s-pad); font-size: var(--btn-s-text); }
.ro .btn.block { width: 100%; }
.ro .btn[disabled], .ro .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
.ro .link { display: inline-flex; align-items: center; gap: 0.35em; color: var(--action); font-weight: 600; text-decoration: none; }
.ro .link:hover { text-decoration: underline; }
.ro .link .ico { width: 1.1em; height: 1.1em; }
.ro :is(p, dd, figcaption, li) .link:not(:has(.ico)) { display: inline; }

.ro .panel { position: relative; padding: var(--panel-pad); border-radius: var(--r-panel); background: var(--surface); box-shadow: var(--shadow-panel); }
.ro .well { padding: var(--well-pad); border-radius: var(--r-well); background: var(--surface-2); }
.ro .object { position: relative; border-radius: var(--r-card); background: radial-gradient(140% 60% at 50% 0%, var(--surface) 62%, var(--surface-tint) 100%); box-shadow: var(--shadow-object), inset 0 1px 0 #FFFFFF; }
.ro .note { padding: var(--note-pad-y) var(--note-pad-x); border-radius: var(--r-well); background: var(--surface); box-shadow: var(--shadow-panel); }
.ro .note h3 { display: flex; align-items: center; gap: 10px; font-size: var(--note-title); line-height: 1.25; font-weight: 600; letter-spacing: -0.01em; }
.ro .note p { margin-top: 6px; font-size: var(--small); line-height: 1.5; color: var(--ink-2); text-wrap: pretty; }
.ro .note.warn { background: var(--warn-bg); box-shadow: none; color: var(--warn-ink); }
.ro .note.warn p { color: var(--warn-ink); }
.ro .note.warn .ico { color: var(--warn); }
.ro .note.warn .btn .ico { color: inherit; }
.ro .note.ok { background: var(--ok-bg); box-shadow: none; color: var(--ok-ink); }
.ro .note.ok p { color: var(--ok-ink); }

.ro .chip { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 12px 0 10px; border: 0; border-radius: 999px; background: var(--surface-2); color: var(--ink-2); font-size: 13px; line-height: 1; font-weight: 500; white-space: nowrap; }
.ro .chip .ico { width: 15px; height: 15px; }
.ro .chip.on { background: var(--action-soft); color: var(--action); }
.ro .chip.bad { background: var(--warn-bg); color: var(--warn-ink); }
.ro .chip.good { background: var(--ok-bg); color: var(--ok-ink); }

.ro .fig { font-size: var(--fig); line-height: 1; font-weight: 600; letter-spacing: -0.03em; white-space: nowrap; }
.ro .fig small { margin-left: 0.18em; font-size: 0.48em; font-weight: 500; letter-spacing: 0; color: var(--muted); }
.ro .fig-cap { margin-top: 8px; font-size: var(--small); line-height: 1.45; color: var(--muted); text-wrap: pretty; }
.ro .grade { font-size: var(--grade); line-height: 0.8; font-weight: 600; letter-spacing: -0.045em; }
.ro .grade.low { color: var(--warn-ink); }

.ro .tile-ico { display: grid; place-items: center; width: var(--tile-size); aspect-ratio: 1; border-radius: 12px; background: var(--surface-2); color: var(--ink); }
.ro .tile-ico .ico { width: 55%; height: 55%; }

.ro .hundred { --h: 12px; display: flex; gap: 4px; }
.ro .hundred .seg { display: grid; align-content: start; gap: 8px; min-width: 0; }
.ro .hundred .fill { position: relative; display: block; height: var(--h); border-radius: calc(var(--h) / 2); background: var(--pt); overflow: hidden; }
.ro .hundred .fill i { position: absolute; inset: 0 auto 0 0; border-radius: inherit; background: var(--pc); }
.ro .hundred .nm { display: flex; align-items: baseline; gap: 5px; min-width: 0; font-size: 12px; line-height: 16px; color: var(--muted); white-space: nowrap; }
.ro .hundred .nm b { font-weight: 600; color: var(--ink); }
.ro .meter { position: relative; display: block; height: 6px; border-radius: 3px; background: var(--surface-3); overflow: hidden; }
.ro .meter i { display: block; height: 100%; border-radius: 3px; background: var(--accent); }

.ro .faq { max-width: 960px; margin: 0 auto; }
.ro .faq details { border-radius: var(--r-well); transition: background-color var(--t-hover) ease; }
.ro .faq details + details { margin-top: 6px; }
.ro .faq details[open] { background: var(--surface); box-shadow: var(--shadow-panel); }
.ro .faq summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: clamp(14px, 1vw, 21px) clamp(16px, 1.2vw, 24px); list-style: none; cursor: pointer; font-size: clamp(15.5px, 0.94vw, 19.5px); line-height: 1.3; font-weight: 600; letter-spacing: -0.012em; border-radius: var(--r-well); }
.ro .faq summary::-webkit-details-marker { display: none; }
.ro .faq summary:hover { background: rgba(var(--shadow-rgb), 0.05); }
.ro .faq details[open] summary:hover { background: transparent; }
.ro .faq summary:hover .ico { color: var(--ink); }
.ro .faq summary .ico { width: 1.1em; height: 1.1em; color: var(--muted); transition: transform 240ms var(--ease-out); }
.ro .faq details[open] summary .ico { transform: rotate(45deg); }
.ro .faq .answer { padding: 0 clamp(16px, 1.2vw, 24px) clamp(16px, 1.2vw, 22px); line-height: 1.55; color: var(--ink-2); text-wrap: pretty; }
@media (min-width: 761px) and (min-height: 561px) { .ro .faq .answer { text-align: justify; hyphens: auto; -webkit-hyphens: auto; } }

.ro .window { position: relative; overflow: hidden; border-radius: clamp(8px, 0.6vw, 12px); background: var(--chrome); box-shadow: var(--shadow-object); }
.ro .window img { display: block; width: 100%; height: auto; }

.ro .field { display: grid; gap: 7px; align-content: start; }
.ro .field > label, .ro .label { font-size: var(--small); font-weight: 600; color: var(--ink); }
.ro .field .help { font-size: 13.5px; line-height: 1.45; color: var(--muted); }
.ro .err, .ro .errorlist { margin: 0; padding: 0; list-style: none; font-size: clamp(13.5px, 0.7vw, 15.5px); line-height: 1.45; color: var(--warn-ink); text-wrap: pretty; }
.ro .err[data-ro-msg] { flex-basis: 100%; }
.ro .input, .ro .field input:where(:not([type="checkbox"]):not([type="radio"])), .ro .field select, .ro .field textarea {
  width: 100%; min-height: 48px; padding: 0 16px; border: 0; border-radius: var(--r-m); background: var(--surface); color: var(--ink); font: inherit; font-size: 16px; line-height: 1.4;
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 1px 0 rgba(var(--shadow-rgb), 0.03); transition: box-shadow var(--t-hover) ease;
}
.ro .field textarea { min-height: 140px; padding: 12px 16px; resize: vertical; }
.ro .input:hover, .ro .field input:hover, .ro .field select:hover, .ro .field textarea:hover { box-shadow: inset 0 0 0 1px var(--leader); }
.ro .input:focus, .ro .field input:focus, .ro .field select:focus, .ro .field textarea:focus { outline: none; box-shadow: inset 0 0 0 2px var(--action); }
.ro .field.has-error input, .ro .field.has-error select, .ro .field.has-error textarea { box-shadow: inset 0 0 0 1.5px var(--warn); }
.ro :is(input, select, textarea)[aria-invalid="true"]:not([type="checkbox"]):not([type="radio"]) { box-shadow: inset 0 0 0 1.5px var(--warn); }
.ro .field.has-error :is(input, select, textarea):not([type="checkbox"]):not([type="radio"]):hover, .ro :is(input, select, textarea)[aria-invalid="true"]:not([type="checkbox"]):not([type="radio"]):hover { box-shadow: inset 0 0 0 2px var(--warn); }
.ro .field.has-error :is(input, select, textarea):not([type="checkbox"]):not([type="radio"]):focus, .ro :is(input, select, textarea)[aria-invalid="true"]:not([type="checkbox"]):not([type="radio"]):focus { outline: none; box-shadow: inset 0 0 0 2px var(--warn); }
.ro [aria-invalid="true"]:is([type="checkbox"], [type="radio"]) { outline: 1.5px solid var(--warn); outline-offset: 2px; }
.ro .check { display: flex; align-items: flex-start; gap: 12px; font-size: var(--small); line-height: 1.45; color: var(--ink-2); }
.ro .check input { flex: none; width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--action); }

.ro .table-box { position: relative; overflow-x: auto; border-radius: var(--r-panel); background: var(--surface); box-shadow: var(--shadow-panel); }
.ro .table-box.flat { box-shadow: none; border-radius: 10px; }
.ro .table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: var(--small); }
.ro .table th { padding: 14px 18px; text-align: left; font-size: 12.5px; font-weight: 600; color: var(--muted); white-space: nowrap; background: var(--surface-tint); }
.ro .table td { padding: 14px 18px; vertical-align: middle; border-top: 1px solid var(--surface-2); }
.ro .table tbody tr { transition: background-color var(--t-hover) ease; }
.ro .table tbody tr:hover { background: var(--surface-tint); }
.ro .table .num { text-align: right; }

.ro .close-band { --sec-pad: clamp(40px, 2.7vw, 68px); --display: clamp(34px, 3.2vw, 76px); --lede: clamp(16px, 0.9vw, 20.5px); --btn-h: clamp(44px, 2.35vw, 50px); --btn-pad: clamp(18px, 1.2vw, 25px); --btn-text: clamp(14.5px, 0.78vw, 16.5px); padding: var(--sec-pad) 0; text-align: center; }
.ro .close-band h2 { font-size: var(--display); line-height: 1; font-weight: 600; letter-spacing: -0.04em; }
.ro .close-band p { max-width: 46ch; margin: clamp(11px, 0.99vw, 20px) auto 0; font-size: var(--lede); line-height: 1.45; color: var(--ink-2); text-wrap: balance; }
.ro .close-band .acts { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: clamp(18px, 1.44vw, 29px); }
@media (max-width: 640px) { .ro .close-band .acts .btn { width: min(100%, 256px); } }

.ro .empty { display: grid; justify-items: center; gap: 10px; padding: clamp(36px, 3.4vw, 72px) 20px; text-align: center; }
.ro .empty .tile-ico { width: 56px; }
.ro .empty h3 { font-size: var(--h3); font-weight: 600; letter-spacing: -0.015em; }
.ro .empty p { max-width: 44ch; color: var(--muted); }

@media (prefers-reduced-motion: no-preference) {
  html.motion .ro .rise { animation: ro-rise 600ms var(--ease-out) both; animation-delay: calc(var(--i, 0) * 70ms); }
  html.motion .ro :where([data-ro-msg]:not([hidden])) { animation: ro-msg 240ms var(--ease-out) both; }
}
@keyframes ro-rise { from { transform: translateY(10px); opacity: 0; } }
@keyframes ro-msg { from { transform: translateY(-3px); opacity: 0; } }
@media (max-width: 640px) {
  .ro { --sec-pad: 44px; }
  .ro .page-head { padding-top: 28px; }
}
