:root {
  --char: #263238;
  --cyan: #00BCD4;
  --fog: #ECEFF1;
  --deep: #102027;
  --ink: #1c2a30;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--fog);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: 0.01em;
}

a { color: #00838f; text-decoration: none; }
a:hover { color: var(--cyan); }

.barwide {
  background: var(--deep);
  color: #eceff1;
  display: grid;
  grid-template-columns: 240px 1fr;
  align-items: center;
  padding: 0 32px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 30;
}

.emblem {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 650;
  font-size: 16px;
}

.navwide {
  display: grid;
  grid-template-columns: repeat(7, auto);
  justify-content: end;
  gap: 18px;
  font-size: 13px;
}

.navwide a { color: #b0bec5; }

.canvas {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 28px 48px;
}

.hero-ultra {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  padding: 36px 0 20px;
}

.hero-copy { grid-column: 1 / span 5; align-self: center; }

.hero-copy h1 {
  font-size: 30px;
  line-height: 1.35;
  color: var(--char);
  margin-bottom: 12px;
}

.hero-copy p { color: #455a64; max-width: 36em; }

.mock-ui {
  grid-column: 6 / span 7;
  display: grid;
  grid-template-columns: 180px 1fr 140px;
  min-height: 220px;
  background: var(--char);
  border: 1px solid #37474f;
}

.mock-ui aside,
.mock-ui section,
.mock-ui figure {
  margin: 0;
  padding: 10px;
}

.mock-ui aside { background: #1b282e; border-right: 1px solid #37474f; }
.mock-ui section { background: #263238; }
.mock-ui figure { background: #102027; border-left: 1px solid #37474f; }

.mock-row {
  height: 18px;
  background: #37474f;
  margin-bottom: 8px;
}

.mock-row.on { background: var(--cyan); opacity: 0.7; }

.mock-bubble {
  height: 28px;
  background: #37474f;
  margin: 8px 20% 8px 0;
}

.mock-bubble.alt { margin: 8px 0 8px 20%; background: #00838f; opacity: 0.45; }

.col12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px 20px;
  margin: 28px 0;
}

.col12 h2 {
  grid-column: 1 / -1;
  font-size: 22px;
  color: var(--char);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--cyan);
}

.col12 > p { grid-column: 1 / -1; }

.span4 { grid-column: span 4; background: #fff; padding: 18px; }
.span6 { grid-column: span 6; background: #fff; padding: 18px; }
.span8 { grid-column: span 8; }
.span12 { grid-column: 1 / -1; }

.span4 h3, .span6 h3 { font-size: 16px; color: #006064; margin-bottom: 8px; }

.switch-track {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  background: var(--deep);
  color: #eceff1;
}

.switch-track article {
  padding: 16px 14px;
  border-right: 1px solid #37474f;
}

.switch-track b { display: block; color: var(--cyan); margin-bottom: 6px; font-size: 13px; }

.vision-split { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.vision-split article { background: #fff; padding: 20px; }
.vision-split article:first-child { border-right: 4px solid var(--cyan); }

.miss-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.miss-table th,
.miss-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #cfd8dc;
  vertical-align: top;
}

.miss-table th { background: var(--char); color: #fff; }

.locate-pack {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.locate-pack article {
  background: #fff;
  padding: 16px;
  border-top: 3px solid var(--cyan);
}

.locate-pack h3 { font-size: 16px; color: var(--char); margin-bottom: 8px; }

.split-advice {
  grid-column: 1 / -1;
  background: #fff;
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  align-items: start;
}

.faq-wide { grid-column: 1 / -1; }
.faq-wide details {
  background: #fff;
  padding: 14px 16px;
  margin-bottom: 8px;
  border-left: 3px solid var(--cyan);
}
.faq-wide summary { font-weight: 650; color: var(--char); cursor: default; }
.faq-wide p { margin-top: 8px; }

.footwide {
  background: var(--deep);
  color: #b0bec5;
  padding: 28px 32px;
  font-size: 13px;
}

.footwide p { margin-bottom: 8px; }

@media (max-width: 1100px) {
  .hero-ultra, .col12 { display: block; }
  .span4, .span6, .mock-ui, .switch-track, .vision-split, .locate-pack, .split-advice { display: block; margin-bottom: 12px; }
  .barwide { display: flex; height: auto; padding: 12px 16px; flex-wrap: wrap; }
  .navwide { display: flex; flex-wrap: wrap; }
}

.span4 svg { display:block; margin-bottom:8px; }