:root {
  --fs7301-paper: #f4f1e9;
  --fs7301-surface: #fbfaf6;
  --fs7301-ink: #102033;
  --fs7301-muted: #526171;
  --fs7301-blue: #17498f;
  --fs7301-blue-deep: #0b2c58;
  --fs7301-aqua: #77c4bd;
  --fs7301-line: rgba(15, 46, 79, 0.16);
  --fs7301-alert: #b36f26;
  --fs7301-radius: 22px;
  --fs7301-shell: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.fs7301-page {
  margin: 0;
  min-width: 320px;
  color: var(--fs7301-ink);
  background: var(--fs7301-paper);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.fs7301-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 8% 8%, rgba(91, 162, 187, .16), transparent 24rem),
    radial-gradient(circle at 94% 34%, rgba(41, 83, 144, .10), transparent 30rem),
    linear-gradient(180deg, #f9f7f1, #ece9df);
}
.fs7301-page a { color: inherit; }
.fs7301-page img { display: block; max-width: 100%; }
.fs7301-shell { width: var(--fs7301-shell); margin-inline: auto; }
.fs7301-skip {
  position: fixed; left: 16px; top: 10px; z-index: 100;
  transform: translateY(-160%); padding: 10px 15px; border-radius: 12px;
  background: #fff; color: var(--fs7301-blue-deep); font-weight: 700;
}
.fs7301-skip:focus { transform: translateY(0); }

.fs7301-header {
  position: relative; z-index: 20;
  border-bottom: 1px solid rgba(255,255,255,.62);
  background: rgba(247, 245, 239, .76);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  backdrop-filter: blur(22px) saturate(145%);
}
.fs7301-header__inner {
  width: var(--fs7301-shell); min-height: 74px; margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px;
}
.fs7301-brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.fs7301-brand small {
  display: inline-grid; place-items: center; min-width: 48px; min-height: 30px; margin: 0;
  border: 1px solid rgba(23,73,143,.18); border-radius: 999px; color: var(--fs7301-blue);
  background: rgba(255,255,255,.62); font-size: 9px; font-weight: 800; letter-spacing: .12em;
}
.fs7301-brand span { font-size: 11px; font-weight: 720; line-height: 1.2; letter-spacing: .12em; color: var(--fs7301-muted); }
.fs7301-nav { display: flex; justify-content: center; gap: 6px; }
.fs7301-nav a {
  padding: 9px 11px; border-radius: 999px; text-decoration: none;
  font-size: 13px; color: #344456; transition: .2s ease;
}
.fs7301-nav a:hover, .fs7301-nav a:focus-visible { background: rgba(255,255,255,.75); color: var(--fs7301-blue); }
.fs7301-nav a[aria-current="page"] { color: white; background: var(--fs7301-blue); }
.fs7301-tools { display: flex; align-items: center; gap: 4px; }
.fs7301-language, .fs7301-menu-button {
  border: 1px solid var(--fs7301-line); background: rgba(255,255,255,.54); color: var(--fs7301-muted);
  min-width: 34px; height: 34px; border-radius: 50%; font: inherit; font-size: 11px; cursor: pointer;
}
.fs7301-language.is-active { color: white; border-color: var(--fs7301-blue); background: var(--fs7301-blue); }
.fs7301-menu-button { display: none; font-size: 17px; }

.fs7301-hero { position: relative; overflow: clip; padding: clamp(54px, 8vw, 112px) 0 70px; }
.fs7301-hero__grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: clamp(34px, 6vw, 88px); align-items: center; }
.fs7301-eyebrow { margin: 0 0 18px; color: var(--fs7301-blue); font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.fs7301-hero h1 {
  max-width: 760px; margin: 0; font-size: clamp(42px, 5.6vw, 82px); line-height: .98;
  letter-spacing: -.055em; font-weight: 680;
}
.fs7301-hero h1 em { color: var(--fs7301-blue); font-style: normal; }
.fs7301-lead { max-width: 700px; margin: 28px 0 0; color: var(--fs7301-muted); font-size: clamp(16px, 1.55vw, 20px); line-height: 1.8; }
.fs7301-hero__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.fs7301-button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 0 19px; border: 1px solid var(--fs7301-line); border-radius: 999px;
  background: rgba(255,255,255,.62); text-decoration: none; font-size: 13px; font-weight: 700;
}
.fs7301-button--primary { color: #fff; border-color: var(--fs7301-blue); background: var(--fs7301-blue); box-shadow: 0 14px 34px rgba(23,73,143,.22); }
.fs7301-hero__media { position: relative; margin: 0; }
.fs7301-hero__media::before { content: ""; position: absolute; inset: 9% -6% -6% 9%; border-radius: 40px; background: rgba(24,75,142,.14); filter: blur(2px); }
.fs7301-hero__media img { position: relative; width: 100%; aspect-ratio: 1.37; object-fit: cover; border-radius: 34px; box-shadow: 0 30px 70px rgba(26,46,70,.18); }
.fs7301-media-note {
  position: absolute; left: 16px; right: 16px; bottom: 16px; margin: 0;
  padding: 11px 14px; border: 1px solid rgba(255,255,255,.45); border-radius: 14px;
  color: white; background: rgba(8,29,55,.46); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  font-size: 11px; line-height: 1.45;
}
.fs7301-boundary {
  margin-top: 24px; padding: 14px 16px; border-left: 3px solid var(--fs7301-alert);
  background: rgba(255,255,255,.55); color: #5d5042; font-size: 12px; line-height: 1.65;
}

.fs7301-section { padding: clamp(64px, 8vw, 104px) 0; border-top: 1px solid var(--fs7301-line); }
.fs7301-section--deep { color: #f6f8fb; background: var(--fs7301-blue-deep); }
.fs7301-section--white { background: rgba(255,255,255,.58); }
.fs7301-section-head { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(260px, .65fr); gap: 44px; align-items: end; margin-bottom: 38px; }
.fs7301-section-head h2 { margin: 7px 0 0; max-width: 800px; font-size: clamp(30px, 4vw, 52px); line-height: 1.07; letter-spacing: -.04em; font-weight: 650; }
.fs7301-section-head > p { margin: 0; color: var(--fs7301-muted); line-height: 1.75; }
.fs7301-section--deep .fs7301-section-head > p { color: #b8c8db; }
.fs7301-section--deep .fs7301-eyebrow { color: #80d3ca; }
.fs7301-grid { display: grid; gap: 16px; }
.fs7301-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.fs7301-grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.fs7301-card {
  min-width: 0; padding: clamp(21px, 3vw, 30px); border: 1px solid var(--fs7301-line);
  border-radius: var(--fs7301-radius); background: rgba(255,255,255,.64); box-shadow: 0 14px 40px rgba(38,57,72,.055);
}
.fs7301-card__code { display: block; margin-bottom: 26px; color: var(--fs7301-blue); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.fs7301-card h3 { margin: 0 0 10px; font-size: 20px; letter-spacing: -.02em; }
.fs7301-card p { margin: 0; color: var(--fs7301-muted); line-height: 1.7; }
.fs7301-card a { display: inline-flex; margin-top: 20px; color: var(--fs7301-blue); font-size: 13px; font-weight: 750; text-decoration: none; }
.fs7301-section--deep .fs7301-card { border-color: rgba(255,255,255,.13); background: rgba(255,255,255,.065); box-shadow: none; }
.fs7301-section--deep .fs7301-card__code { color: var(--fs7301-aqua); }
.fs7301-section--deep .fs7301-card p { color: #b8c8db; }
.fs7301-section--deep .fs7301-card a { color: #9fe0d9; }

.fs7301-bom-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 18px; }
.fs7301-bom-visual { position: relative; min-height: 450px; margin: 0; border-radius: var(--fs7301-radius); overflow: hidden; }
.fs7301-bom-visual img { width: 100%; height: 100%; object-fit: cover; }
.fs7301-bom-visual .fs7301-media-note { position: absolute; }
.fs7301-bom-list { display: grid; gap: 12px; counter-reset: bom; }
.fs7301-bom-list .fs7301-card { position: relative; padding-left: 74px; }
.fs7301-bom-list .fs7301-card::before {
  counter-increment: bom; content: "0" counter(bom); position: absolute; left: 24px; top: 27px;
  color: var(--fs7301-blue); font-size: 12px; font-weight: 800; letter-spacing: .12em;
}
.fs7301-axis { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border: 1px solid rgba(255,255,255,.14); border-radius: 24px; overflow: hidden; }
.fs7301-axis article { min-height: 230px; padding: 28px; border-right: 1px solid rgba(255,255,255,.14); }
.fs7301-axis article:last-child { border-right: 0; }
.fs7301-axis span { color: var(--fs7301-aqua); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.fs7301-axis h3 { margin: 70px 0 10px; font-size: 20px; }
.fs7301-axis p { margin: 0; color: #b8c8db; line-height: 1.65; }

.fs7301-failure-layout { display: grid; grid-template-columns: 1.06fr .94fr; gap: 18px; align-items: stretch; }
.fs7301-failure-visual { position: relative; min-height: 520px; margin: 0; border-radius: var(--fs7301-radius); overflow: hidden; }
.fs7301-failure-visual img { width: 100%; height: 100%; object-fit: cover; }
.fs7301-failure-list { display: grid; gap: 12px; }

.fs7301-gates { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 10px; }
.fs7301-gate { padding: 22px 18px; border: 1px solid var(--fs7301-line); border-radius: 18px; background: rgba(255,255,255,.7); }
.fs7301-gate b { display: block; color: var(--fs7301-blue); font-size: 24px; letter-spacing: -.04em; }
.fs7301-gate h3 { margin: 28px 0 9px; font-size: 17px; }
.fs7301-gate p { margin: 0; color: var(--fs7301-muted); font-size: 13px; line-height: 1.6; }
.fs7301-claims { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin-top: 18px; }
.fs7301-claim { padding: 18px 20px; border-radius: 15px; background: #fff9ee; border: 1px solid rgba(179,111,38,.22); }
.fs7301-claim h3 { margin: 0 0 8px; color: #7d4b18; font-size: 14px; }
.fs7301-claim p { margin: 0; color: #6d5a45; font-size: 12px; line-height: 1.65; }

.fs7301-cta { padding: clamp(60px,8vw,100px) 0; color: white; background: linear-gradient(125deg, #123e78, #0b2b52); }
.fs7301-cta__grid { display: grid; grid-template-columns: 1fr auto; gap: 50px; align-items: center; }
.fs7301-cta h2 { margin: 0; font-size: clamp(32px,4vw,54px); line-height: 1.05; letter-spacing: -.04em; }
.fs7301-cta p { max-width: 750px; margin: 18px 0 0; color: #c3d2e3; line-height: 1.75; }
.fs7301-cta .fs7301-button { background: white; color: var(--fs7301-blue-deep); white-space: nowrap; }

.fs7301-footer { padding: 34px 0; border-top: 1px solid rgba(255,255,255,.45); background: rgba(236,233,223,.8); }
.fs7301-footer__inner { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; }
.fs7301-footer__brand { display: flex; gap: 16px; align-items: center; }
.fs7301-footer__brand img { width: 100px; height: 50px; object-fit: contain; object-position: left center; }
.fs7301-footer p, .fs7301-footer small { margin: 0; color: var(--fs7301-muted); font-size: 12px; line-height: 1.6; }
.fs7301-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 14px; }
.fs7301-footer nav a { color: var(--fs7301-muted); font-size: 12px; text-decoration: none; }

[data-fs7301-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .65s ease, transform .65s ease; }
[data-fs7301-reveal].is-visible { opacity: 1; transform: none; }
:focus-visible { outline: 3px solid #69afa9; outline-offset: 3px; }

@media (max-width: 980px) {
  .fs7301-header__inner { grid-template-columns: auto auto 1fr; gap: 12px; }
  .fs7301-nav { position: absolute; left: 24px; right: 24px; top: calc(100% + 8px); display: none; padding: 10px; border: 1px solid var(--fs7301-line); border-radius: 18px; background: rgba(249,248,243,.96); box-shadow: 0 18px 44px rgba(25,43,62,.16); }
  .fs7301-nav[data-open="true"] { display: grid; }
  .fs7301-nav a { padding: 12px 14px; }
  .fs7301-tools { justify-self: end; }
  .fs7301-menu-button { display: inline-grid; place-items: center; }
  .fs7301-hero__grid, .fs7301-section-head, .fs7301-bom-layout, .fs7301-failure-layout { grid-template-columns: 1fr; }
  .fs7301-hero__media { max-width: 720px; }
  .fs7301-axis { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .fs7301-axis article:nth-child(2) { border-right: 0; }
  .fs7301-axis article:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.14); }
  .fs7301-gates { grid-template-columns: repeat(3,minmax(0,1fr)); }
}

@media (max-width: 680px) {
  :root { --fs7301-shell: min(100% - 28px, 1180px); --fs7301-radius: 18px; }
  .fs7301-header__inner { min-height: 66px; }
  .fs7301-brand { gap: 8px; }
  .fs7301-brand small { min-width: 42px; min-height: 28px; }
  .fs7301-brand span { font-size: 10px; letter-spacing: .06em; }
  .fs7301-language { min-width: 31px; width: 31px; height: 31px; }
  .fs7301-menu-button { min-width: 31px; width: 31px; height: 31px; }
  .fs7301-hero { padding-top: 44px; }
  .fs7301-hero h1 { font-size: clamp(40px, 13vw, 58px); }
  .fs7301-lead { margin-top: 21px; font-size: 16px; }
  .fs7301-hero__media img { border-radius: 22px; }
  .fs7301-section-head { gap: 20px; }
  .fs7301-grid--2, .fs7301-grid--3, .fs7301-gates, .fs7301-claims { grid-template-columns: 1fr; }
  .fs7301-bom-visual, .fs7301-failure-visual { min-height: 360px; }
  .fs7301-axis { grid-template-columns: 1fr; }
  .fs7301-axis article { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .fs7301-axis article:last-child { border-bottom: 0; }
  .fs7301-axis h3 { margin-top: 34px; }
  .fs7301-cta__grid, .fs7301-footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .fs7301-cta .fs7301-button { width: 100%; white-space: normal; }
  .fs7301-footer nav { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-fs7301-reveal] { opacity: 1; transform: none; transition: none; }
}