:root {
  --bg-0: #040b1f;
  --bg-1: #091a3f;
  --bg-2: #11316e;
  --surface: rgba(11, 30, 68, 0.76);
  --surface-strong: rgba(10, 28, 61, 0.9);
  --surface-border: rgba(130, 183, 246, 0.3);
  --text-main: #edf4ff;
  --text-sub: #c7d8f3;
  --text-soft: #a8bfe1;
  --accent: #5aa8ff;
  --accent-soft: rgba(90, 168, 255, 0.18);
  --focus: #8fcbff;
  --shadow: 0 24px 56px rgba(2, 8, 20, 0.5);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  overflow-x: clip;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--text-main);
  line-height: 1.62;
  background: radial-gradient(circle at 10% -5%, #184ca2 0%, transparent 38%),
    radial-gradient(circle at 88% 8%, #0f4a94 0%, transparent 32%),
    linear-gradient(155deg, var(--bg-0), var(--bg-1) 50%, var(--bg-2));
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image: linear-gradient(rgba(123, 171, 235, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123, 171, 235, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at 50% 40%, black, transparent 82%);
}

.container {
  width: min(1280px, calc(100% - 64px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff;
  color: #0d234d;
  font-weight: 700;
  z-index: 999;
}

.skip-link:focus-visible {
  top: 12px;
}

.topbar-wrap {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(131, 180, 240, 0.16);
  background: rgba(4, 12, 30, 0.68);
}

.topbar {
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  column-gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.brand-subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-soft);
}

.top-nav {
  display: inline-flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.top-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(127, 175, 238, 0.2);
  color: var(--text-sub);
  text-decoration: none;
  background: rgba(16, 41, 88, 0.35);
  transition: border-color 220ms ease, color 220ms ease, background-color 220ms ease, transform 220ms ease;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--text-main);
  border-color: rgba(158, 211, 255, 0.52);
  background: rgba(17, 52, 108, 0.55);
  transform: translateY(-1px);
}

.record-badge {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(148, 209, 255, 0.62);
  background: rgba(84, 165, 255, 0.16);
  color: #d8edff;
  font-size: 13px;
  white-space: nowrap;
}

.page-main {
  padding-top: 28px;
  padding-bottom: 24px;
}

.section-shell {
  margin-bottom: 22px;
  padding: 32px;
  border-radius: 20px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(9px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(360px, 1fr);
  gap: 28px;
  align-items: stretch;
}

.hero-label {
  margin: 0;
  color: #8fd4ff;
  letter-spacing: 0.08em;
  font-size: 14px;
}

h1 {
  margin: 12px 0 0;
  font-size: clamp(36px, 3vw, 48px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.hero-lead {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--text-sub);
  font-size: 17px;
}

.hero-notice {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(123, 200, 255, 0.38);
  background: var(--accent-soft);
  color: #e1f1ff;
  font-size: 15px;
}

.hero-summary {
  padding: 24px;
  border-radius: 16px;
  border: 1px solid rgba(148, 204, 255, 0.46);
  background: linear-gradient(165deg, rgba(16, 47, 101, 0.9), rgba(7, 23, 51, 0.96));
  box-shadow: inset 0 1px 0 rgba(223, 240, 255, 0.1);
}

.hero-summary h2 {
  margin: 0;
  font-size: 24px;
}

.hero-summary ul {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.hero-summary li {
  display: grid;
  gap: 6px;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid rgba(142, 191, 245, 0.33);
  background: rgba(8, 27, 59, 0.76);
}

.hero-summary span {
  color: var(--text-soft);
  font-size: 13px;
}

.hero-summary strong {
  font-size: 17px;
  letter-spacing: 0.01em;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

h2 {
  margin: 0;
  font-size: clamp(26px, 2vw, 32px);
  line-height: 1.24;
}

.section-head p {
  margin: 0;
  color: var(--text-sub);
  font-size: 16px;
}

.feature-bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  grid-column: span 3;
  min-height: 138px;
  padding: 20px;
  border-radius: 14px;
  border: 1px solid rgba(128, 176, 232, 0.24);
  background: rgba(10, 30, 64, 0.8);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.feature-card-main {
  grid-column: span 6;
  min-height: 154px;
  background: linear-gradient(165deg, rgba(19, 54, 113, 0.88), rgba(8, 30, 69, 0.95));
}

.feature-card:hover,
.feature-card:focus-within {
  transform: translateY(-2px);
  border-color: rgba(161, 211, 255, 0.52);
  box-shadow: 0 16px 30px rgba(2, 10, 26, 0.35);
}

.feature-card h3 {
  margin: 0;
  font-size: 19px;
}

.feature-card p {
  margin: 10px 0 0;
  color: #d0e0f8;
  font-size: 15.5px;
  line-height: 1.68;
}

.filing-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
}

.filing-shell .section-head {
  margin-bottom: 0;
}

.filing-block {
  min-width: 390px;
  padding: 20px 24px;
  border-radius: 14px;
  border: 1px solid rgba(128, 203, 255, 0.6);
  background: linear-gradient(160deg, rgba(24, 68, 135, 0.86), rgba(8, 31, 68, 0.95));
  box-shadow: inset 0 1px 0 rgba(228, 244, 255, 0.12);
}

.filing-block span {
  display: block;
  color: #d0e4ff;
  font-size: 13px;
}



.filing-link {
  color: #eaf5ff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.filing-link:hover,
.filing-link:focus-visible {
  color: #ffffff;
}

.subject-board {
  margin: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(129, 174, 230, 0.34);
  background: var(--surface-strong);
}

.subject-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  align-items: center;
  padding: 19px 24px;
  border-bottom: 1px solid rgba(132, 175, 226, 0.2);
}

.subject-row:last-child {
  border-bottom: 0;
}

.subject-row dt {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  letter-spacing: 0.02em;
}

.subject-row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.68;
}

.subject-row a {
  color: #e6f4ff;
}

.site-footer {
  padding: 8px 0 32px;
}



.site-footer p + p {
  margin-top: 6px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

@media (max-width: 1279px) {
  .container {
    width: min(1120px, calc(100% - 40px));
  }

  .feature-card {
    grid-column: span 6;
    min-height: 142px;
  }

  .feature-card-main {
    grid-column: span 12;
    min-height: 148px;
  }

  .filing-block {
    min-width: 350px;
  }
}

@media (max-width: 1023px) {
  .topbar {
    grid-template-columns: 1fr auto;
    row-gap: 12px;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .brand {
    grid-column: 1 / 2;
  }

  .record-badge {
    grid-column: 2 / 3;
    justify-self: end;
  }

  .top-nav {
    grid-column: 1 / 3;
    justify-content: flex-start;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    white-space: normal;
    font-size: clamp(32px, 5vw, 40px);
  }

  .filing-shell {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .filing-block {
    min-width: 0;
  }

  .subject-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 18px;
  }
}

@media (max-width: 767px) {
  .container {
    width: calc(100% - 24px);
  }

  .section-shell {
    padding: 18px;
    border-radius: 16px;
  }

  h1 {
    font-size: clamp(28px, 8.2vw, 34px);
  }

  .hero-lead,
  .section-head p,
  .feature-card p {
    font-size: 15px;
  }

  .feature-bento {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .feature-card-main {
    grid-column: auto;
    min-height: 0;
    padding: 16px;
  }

  .top-nav a {
    padding: 0 12px;
    font-size: 14px;
  }

  .filing-block strong {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}