:root {
  --paper: #f8f7f5;
  --paper-2: #efede8;
  --ink: #171515;
  --muted: #706b68;
  --line: rgba(23, 21, 21, 0.14);
  --white: #fff;
  --red: #fa3810;
  --blue: #387fff;
  --green: #45b43b;
  --yellow: #ffb516;
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow: 0 24px 80px rgba(28, 22, 18, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: inherit; }
button, input, textarea { font: inherit; }
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--white);
  border-radius: 8px;
}
.skip-link:focus { top: 16px; }
.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;
}
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(820px, 100%); }
.eyebrow {
  margin: 0 0 16px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { overflow-wrap: anywhere; text-wrap: balance; }
h1 {
  margin-bottom: 24px;
  font-size: clamp(54px, 8vw, 112px);
  font-weight: 760;
  letter-spacing: -.065em;
  line-height: .9;
}
h2 {
  margin-bottom: 18px;
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 720;
  letter-spacing: -.05em;
  line-height: .98;
}
h3 {
  margin-bottom: 12px;
  font-size: 24px;
  letter-spacing: -.025em;
  line-height: 1.15;
}
.lead {
  max-width: 750px;
  color: #4f4a47;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.45;
}
.small { color: var(--muted); font-size: 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(248, 247, 245, .86);
  backdrop-filter: blur(14px);
}
.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 100px; height: auto; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links > a:not(.button) {
  color: #4f4a47;
  font-size: 14px;
  font-weight: 560;
  text-decoration: none;
}
.nav-links > a:not(.button):hover { color: var(--ink); }

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button.secondary { background: transparent; color: var(--ink); }
.button.light { border-color: var(--white); background: var(--white); color: var(--ink); }
.button.light-secondary { border-color: rgba(255,255,255,.34); background: transparent; color: var(--white); }
.button-arrow { font-size: 19px; line-height: 0; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(76px, 11vw, 148px) 0 44px;
}
.hero::after {
  position: absolute;
  z-index: -1;
  right: -18vw;
  bottom: -34vw;
  width: 72vw;
  height: 72vw;
  border-radius: 50%;
  background: conic-gradient(from 190deg, rgba(250,56,16,.46), rgba(255,181,22,.38), rgba(69,180,59,.36), rgba(56,127,255,.40), rgba(250,56,16,.46));
  content: "";
  filter: blur(90px);
  opacity: .65;
}
.hero-copy { max-width: 1040px; }
.hero h1 .accent { color: var(--red); }
.hero-note { margin-top: 22px; color: var(--muted); font-family: var(--mono); font-size: 12px; }

.responsibility-strip {
  margin-top: 76px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.55);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.responsibility {
  min-height: 138px;
  padding: 24px;
  border-right: 1px solid var(--line);
}
.responsibility:last-child { border-right: 0; }
.responsibility .label { color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.responsibility strong { display: block; margin-top: 28px; font-size: 21px; letter-spacing: -.025em; }

.section { padding: clamp(80px, 10vw, 132px) 0; }
.section-head { max-width: 820px; margin-bottom: 48px; }
.section-dark { background: #080808; color: var(--white); }
.section-dark .lead, .section-dark .small { color: #a9a6a4; }
.section-dark .eyebrow { color: #ff6445; }
.section-rule { border-top: 1px solid var(--line); }

.model-grid, .lane-grid, .fit-grid, .faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.model-card, .lane-card, .fit-card {
  position: relative;
  min-height: 270px;
  padding: clamp(25px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.62);
}
.model-card .number, .step-number {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  margin-bottom: 52px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 12px;
}
.model-card p, .lane-card p, .fit-card p { margin-bottom: 0; color: var(--muted); font-size: 16px; }
.model-card.feature { background: var(--ink); color: var(--white); }
.model-card.feature p { color: #aaa6a3; }
.model-card.feature .number { border-color: rgba(255,255,255,.25); }

.loop-list { border-top: 1px solid rgba(255,255,255,.2); }
.loop-step {
  display: grid;
  grid-template-columns: 72px minmax(160px, .7fr) minmax(250px, 1.3fr);
  gap: 24px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid rgba(255,255,255,.2);
}
.loop-step .step-number { margin: 0; border-color: rgba(255,255,255,.25); }
.loop-step h3 { margin: 5px 0 0; }
.loop-step p { margin: 4px 0 0; color: #aaa6a3; }
.loop-callout {
  margin-top: 50px;
  padding: 28px 32px;
  border-left: 3px solid var(--red);
  background: rgba(255,255,255,.06);
  color: #d4d1cf;
  font-size: 19px;
}

.lane-card { min-height: 330px; display: flex; flex-direction: column; }
.lane-card .lane-tag {
  width: fit-content;
  margin-bottom: 54px;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--paper-2);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.lane-card .text-link { margin-top: auto; padding-top: 28px; font-weight: 650; text-decoration: none; }
.lane-card.performance { border-color: var(--ink); background: var(--ink); color: var(--white); }
.lane-card.performance p { color: #aaa6a3; }
.lane-card.performance .lane-tag { background: var(--red); color: var(--white); }

.fit-grid { grid-template-columns: 1.15fr .85fr; align-items: stretch; }
.fit-card { min-height: auto; }
.fit-list { margin: 24px 0 0; padding: 0; list-style: none; }
.fit-list li {
  position: relative;
  padding: 17px 0 17px 31px;
  border-top: 1px solid var(--line);
}
.fit-list li::before { position: absolute; left: 3px; color: var(--green); content: "●"; }
.not-fit .fit-list li::before { color: var(--red); content: "×"; font-size: 20px; line-height: 1.1; }

.status-box {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 50px;
  align-items: start;
  padding: clamp(34px, 6vw, 70px);
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--white);
  box-shadow: var(--shadow);
}
.status-mark { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .07em; }
.status-mark::before { width: 9px; height: 9px; border-radius: 50%; background: var(--yellow); content: ""; }
.status-box p:last-child { margin-bottom: 0; }

.faq-grid { gap: 12px; }
details {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.62);
}
summary { cursor: pointer; padding: 22px 24px; font-weight: 650; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { float: right; color: var(--muted); content: "+"; }
details[open] summary::after { content: "–"; }
details p { padding: 0 24px 22px; color: var(--muted); }

.cta {
  position: relative;
  overflow: hidden;
  padding: clamp(78px, 11vw, 130px) 0;
  background: var(--ink);
  color: var(--white);
  scroll-margin-top: 68px;
}
.cta::after {
  position: absolute;
  right: -120px;
  bottom: -240px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: conic-gradient(var(--red), var(--yellow), var(--green), var(--blue), var(--red));
  content: "";
  filter: blur(100px);
  opacity: .4;
}
.cta .shell { position: relative; z-index: 1; }
.cta h2 { max-width: 800px; }
.cta .lead { color: #bbb7b4; }
.apply-grid {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(430px, 1.12fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: start;
}
.apply-copy { position: sticky; top: 110px; }
.apply-copy h2 { font-size: clamp(42px, 5vw, 66px); }
.text-link-light {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-top: 28px;
  color: #d9d6d3;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}
.text-link-light:hover { color: var(--white); }
.fit-form {
  position: relative;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 24px;
  background: rgba(255,255,255,.08);
  box-shadow: 0 24px 70px rgba(0,0,0,.2);
  backdrop-filter: blur(18px);
  scroll-margin-top: 92px;
}
.fit-form-head { margin-bottom: 28px; }
.fit-form-head h3 { margin: 12px 0 8px; font-size: clamp(28px, 4vw, 40px); }
.fit-form-head p { margin: 0; color: #aaa6a3; font-size: 14px; }
.form-kicker {
  color: #ff8069;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.form-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
}
.form-field { display: grid; gap: 7px; min-width: 0; }
.form-field-wide { grid-column: 1 / -1; }
.form-field > span {
  color: #d2cfcd;
  font-size: 12px;
  font-weight: 620;
}
.form-field input {
  width: 100%;
  min-width: 0;
  padding: 13px 14px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 11px;
  outline: 0;
  background: rgba(0,0,0,.25);
  color: var(--white);
  font-size: 14px;
}
.form-field input::placeholder { color: #777371; }
.form-field input:focus { border-color: var(--white); box-shadow: 0 0 0 3px rgba(255,255,255,.08); }
.form-field input[aria-invalid="true"] { border-color: #ff8069; }
.fit-submit { width: 100%; margin-top: 24px; cursor: pointer; }
.fit-submit:disabled { cursor: wait; opacity: .65; transform: none; }
.form-privacy { margin: 12px 0 0; color: #8c8987; font-size: 11px; text-align: center; }
.form-message { min-height: 20px; margin: 10px 0 0; color: #75cf6d; font-size: 13px; text-align: center; }
.form-message.is-error { color: #ff8069; }
.fit-form.is-sent .form-fields, .fit-form.is-sent .fit-submit, .fit-form.is-sent .form-privacy { display: none; }
.fit-form.is-sent .fit-form-head { margin-bottom: 0; }
.fit-form.is-sent .fit-form-head p { display: none; }
.fit-form.is-sent .form-message {
  margin: 24px 0 0;
  padding: 20px;
  border: 1px solid rgba(117,207,109,.35);
  border-radius: 14px;
  background: rgba(117,207,109,.08);
  color: #b4e8af;
  font-size: 15px;
  text-align: left;
}
.form-honey {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
}

.site-footer { padding: 42px 0; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.footer-brand img { width: 96px; }
.footer-brand p { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; color: var(--muted); font-size: 13px; }
.footer-links a { text-decoration: none; }

.page-hero { padding-bottom: 90px; }
.page-hero h1 { max-width: 1060px; }
.breadcrumb { margin-bottom: 52px; color: var(--muted); font-family: var(--mono); font-size: 12px; }
.breadcrumb a { text-decoration: none; }
.terms-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.term-card { padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); }
.term-card .term { color: var(--red); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.term-card strong { display: block; margin: 34px 0 10px; font-size: 22px; }
.term-card p { margin: 0; color: var(--muted); font-size: 15px; }
.gate-list { counter-reset: gate; border-top: 1px solid var(--line); }
.gate {
  display: grid;
  grid-template-columns: 54px .8fr 1.2fr;
  gap: 22px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  counter-increment: gate;
}
.gate::before { color: var(--red); font-family: var(--mono); font-size: 12px; content: "0" counter(gate); }
.gate strong { font-size: 19px; }
.gate p { margin: 0; color: var(--muted); }
.truth-box { padding: 40px; border-radius: 22px; background: var(--paper-2); }
.truth-box p { max-width: 780px; margin-bottom: 0; font-size: 20px; }

.mcp-connect {
  margin-bottom: 30px;
  padding: clamp(24px, 4vw, 44px);
  border-radius: 28px;
  background: #0a0a0a;
  color: var(--white);
  box-shadow: 0 32px 90px rgba(0,0,0,.22);
  scroll-margin-top: 90px;
}
.mcp-connect .engine-number { margin-bottom: 24px; color: #ff6445; }
.mcp-connect-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(250px, .9fr);
  gap: 40px;
  align-items: end;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255,255,255,.16);
}
.mcp-connect-head h3 { max-width: 620px; margin-bottom: 0; font-size: clamp(28px, 4vw, 44px); }
.mcp-connect-head p { max-width: 420px; margin: 0; color: #aaa6a3; }
.mcp-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 18px;
  padding-top: 20px;
}
.mcp-access, .mcp-client-guides {
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 20px;
  background: #131313;
}
.magic-form {
  padding: 4px 0 22px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.magic-form h3 { margin: 14px 0 16px; font-size: 21px; }
.magic-row { display: flex; gap: 9px; }
.magic-row input {
  min-width: 0;
  flex: 1;
  padding: 13px 14px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 12px;
  outline: 0;
  background: #202020;
  color: var(--white);
  font-size: 14px;
}
.magic-row input::placeholder { color: #777371; }
.magic-row input:focus { border-color: var(--white); box-shadow: 0 0 0 3px rgba(255,255,255,.08); }
.magic-row input[aria-invalid="true"] { border-color: #ff6445; }
.magic-submit {
  flex: none;
  padding: 12px 16px;
  border: 1px solid var(--white);
  border-radius: 12px;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}
.magic-submit:hover { background: #e9e7e3; }
.magic-submit:disabled { cursor: wait; opacity: .62; }
.magic-note { margin: 10px 0 0; color: #8c8987; font-size: 11px; }
.magic-message { min-height: 18px; margin: 7px 0 0; color: #75cf6d; font-size: 12px; }
.magic-message.is-error { color: #ff8069; }
.magic-form.is-sent .magic-row input { border-color: rgba(117,207,109,.55); }
.mcp-divider {
  position: relative;
  margin: 20px 0;
  color: #777371;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
}
.mcp-divider::before {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
  background: rgba(255,255,255,.12);
  content: "";
}
.mcp-divider span { position: relative; padding: 0 10px; background: #131313; }
.mcp-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.mcp-tab {
  padding: 9px 13px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: transparent;
  color: #aaa6a3;
  cursor: pointer;
  font-size: 13px;
  font-weight: 620;
}
.mcp-tab:hover, .mcp-tab.is-active { border-color: var(--white); background: var(--white); color: var(--ink); }
.mcp-label {
  color: #aaa6a3;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.mcp-url-card { padding: 18px; border-radius: 15px; background: #202020; }
.mcp-url-row { display: flex; gap: 12px; align-items: center; margin-top: 9px; }
.mcp-url-row code {
  min-width: 0;
  flex: 1;
  overflow-wrap: anywhere;
  color: var(--white);
  font-family: var(--mono);
  font-size: 14px;
}
.mcp-copy {
  flex: none;
  padding: 9px 12px;
  border: 1px solid rgba(255,255,255,.30);
  border-radius: 999px;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
}
.mcp-copy:hover { border-color: var(--white); background: var(--white); color: var(--ink); }
.mcp-copy-status { display: block; min-height: 18px; padding-top: 6px; color: #75cf6d; font-size: 11px; }
.mcp-steps { margin: 18px 0 0; padding: 0; list-style: none; }
.mcp-steps li {
  display: grid;
  grid-template-columns: 27px 1fr;
  gap: 2px 10px;
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,.12);
}
.mcp-steps li > span {
  grid-row: 1 / 3;
  display: inline-flex;
  width: 25px;
  height: 25px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50%;
  color: #aaa6a3;
  font-family: var(--mono);
  font-size: 10px;
}
.mcp-steps strong { font-size: 14px; }
.mcp-steps small { color: #8c8987; font-size: 12px; line-height: 1.45; }
.mcp-guide { min-height: 150px; padding: 10px 6px 22px; }
.mcp-guide[hidden] { display: none; }
.mcp-guide h3 { margin: 15px 0 10px; }
.mcp-guide p { margin-bottom: 0; color: #aaa6a3; }
.mcp-prompt { padding: 18px; border-radius: 15px; background: var(--paper); color: var(--ink); }
.mcp-prompt-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 14px; }
.mcp-prompt .mcp-label { color: var(--muted); }
.mcp-prompt .mcp-copy { border-color: var(--line); color: var(--ink); }
.mcp-prompt .mcp-copy:hover { border-color: var(--ink); background: var(--ink); color: var(--white); }
.mcp-prompt pre {
  max-height: 310px;
  margin: 0;
  overflow: auto;
  white-space: pre-wrap;
  color: #4f4a47;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}
.engine-transition {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 30px 0;
  padding: 0 8px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.engine-transition i { color: var(--red); font-style: normal; }
.engine-flow { display: grid; gap: 22px; }
.engine-card {
  display: grid;
  grid-template-columns: minmax(260px, .38fr) minmax(0, .62fr);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.engine-copy { padding: clamp(28px, 4vw, 46px); }
.engine-number {
  display: block;
  margin-bottom: 70px;
  color: var(--red);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.engine-copy p { margin-bottom: 0; color: var(--muted); }
.engine-visual {
  min-width: 0;
  margin: 0;
  padding: 18px 18px 12px;
  background: #161616;
}
.engine-visual img {
  display: block;
  width: 100%;
  height: 410px;
  border-radius: 12px;
  object-fit: cover;
  object-position: top left;
}
.engine-visual.contain { background: var(--paper-2); }
.engine-visual.contain img { height: 520px; object-fit: contain; object-position: center; }
.engine-visual figcaption {
  padding: 10px 2px 0;
  color: #aaa6a3;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .03em;
}
.engine-visual.contain figcaption { color: var(--muted); }
.engine-disclaimer {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 780px) {
  .shell { width: min(calc(100% - 28px), 1180px); }
  .nav-links > a:not(.button) { display: none; }
  .nav-links { gap: 8px; }
  .nav .button { min-height: 40px; padding: 9px 14px; font-size: 13px; }
  h1 { font-size: clamp(48px, 13vw, 60px); letter-spacing: -.055em; }
  .hero { padding-top: 76px; }
  .responsibility-strip, .model-grid, .lane-grid, .fit-grid, .status-box, .footer-grid, .terms-grid, .apply-grid { grid-template-columns: 1fr; }
  .responsibility { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .responsibility:last-child { border-bottom: 0; }
  .responsibility strong { margin-top: 14px; }
  .model-card, .lane-card { min-height: auto; }
  .model-card .number, .lane-card .lane-tag { margin-bottom: 40px; }
  .loop-step { grid-template-columns: 44px 1fr; }
  .loop-step p { grid-column: 2; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .gate { grid-template-columns: 38px 1fr; }
  .gate p { grid-column: 2; }
  .engine-card { grid-template-columns: 1fr; }
  .engine-number { margin-bottom: 38px; }
  .engine-visual img { height: 270px; }
  .engine-visual.contain img { height: 380px; }
  .mcp-connect-head, .mcp-grid { grid-template-columns: 1fr; }
  .mcp-connect-head { gap: 20px; }
  .mcp-access, .mcp-client-guides { padding: 16px; }
  .mcp-tabs { overflow-x: auto; }
  .mcp-url-row { align-items: stretch; flex-direction: column; }
  .mcp-copy { width: fit-content; }
  .magic-row { flex-direction: column; }
  .magic-submit { width: 100%; }
  .engine-transition { gap: 7px; font-size: 9px; }
  .apply-copy { position: static; }
  .apply-grid { gap: 32px; }
}

@media (max-width: 520px) {
  .form-fields { grid-template-columns: 1fr; }
  .form-field-wide { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}