:root {
  --bg: #F4F1EA;
  --ink: #2C2A26;
  --muted: #5C584F;
  --bar: #3D405B;
  --accent: #E07A5F;
  --paper: #FFFcf7;
  --line: #D8D1C4;
  --ok: #3D6B5A;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: auto; }

body {
  font-family: "Palatino Linotype", Palatino, "Microsoft YaHei", serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}

.mast {
  background: var(--bar);
  color: #F7F4EE;
}

.mast-inner {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #F7F4EE;
  font-size: 18px;
  letter-spacing: 0.04em;
}

.brand:hover { text-decoration: none; color: #fff; }

.brand svg { width: 34px; height: 34px; flex-shrink: 0; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  justify-content: flex-end;
}

.nav a {
  color: #E8E4DA;
  font-size: 14px;
  border-bottom: 1px solid transparent;
}

.nav a:hover {
  color: #fff;
  border-bottom-color: var(--accent);
  text-decoration: none;
}

.hero {
  width: min(1080px, calc(100% - 40px));
  margin: 48px auto 36px;
  padding-bottom: 28px;
  border-bottom: 2px solid var(--bar);
}

.kicker {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.35;
  margin-bottom: 18px;
  max-width: 18em;
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 42em;
  margin-bottom: 12px;
}

.shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto 56px;
}

.block { margin-bottom: 56px; }

.block h2 {
  font-size: 26px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.lead {
  color: var(--muted);
  margin-bottom: 22px;
  max-width: 46em;
}

.lead + .lead { margin-top: -10px; }

.boards {
  display: grid;
  grid-template-columns: 1fr 1fr 1.12fr;
  gap: 16px;
  align-items: stretch;
}

.plate {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 22px 22px 20px;
  min-height: 240px;
  position: relative;
  box-shadow: 8px 8px 0 rgba(61, 64, 91, 0.08);
}

.plate-wide { min-height: 100%; }

.plate .tag {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--bar);
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
}

.plate h3 {
  font-size: 20px;
  margin: 8px 0 12px;
}

.plate p { color: var(--muted); margin-bottom: 10px; }

.plate svg { width: 40px; height: 40px; margin-bottom: 8px; }

.quad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.tile {
  background: var(--paper);
  border-top: 4px solid var(--accent);
  padding: 18px 16px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.tile h3 { font-size: 17px; margin: 10px 0; }
.tile p { font-size: 15px; color: var(--muted); }
.tile svg { width: 36px; height: 36px; }

.sheet {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  font-size: 15px;
}

.sheet th,
.sheet td {
  border: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.sheet th {
  background: var(--bar);
  color: #fff;
  font-weight: 600;
}

.sheet tr:nth-child(even) td { background: #F8F3EA; }

.rail {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 3px solid var(--accent);
  margin-left: 14px;
}

.step {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 0 0 22px 18px;
  position: relative;
}

.num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bar);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { color: var(--muted); }

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

.limit {
  background: var(--paper);
  padding: 20px;
  border: 1px dashed var(--accent);
}

.limit h3 { margin: 10px 0; font-size: 18px; }
.limit p { color: var(--muted); }
.limit svg { width: 38px; height: 38px; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.pane {
  background: var(--paper);
  padding: 22px;
  border: 1px solid var(--line);
}

.pane h3 { margin-bottom: 10px; font-size: 19px; }
.pane p { color: var(--muted); margin-bottom: 10px; }

.advice {
  background: var(--bar);
  color: #F4F1EA;
  padding: 28px 30px;
}

.advice h2 { color: #fff; }
.advice .lead { color: #D8D3C8; }
.advice ol { padding-left: 22px; }
.advice li { margin-bottom: 10px; }

.faq-list { display: flex; flex-direction: column; gap: 14px; }

.faq {
  background: var(--paper);
  border-left: 5px solid var(--accent);
  padding: 16px 18px;
}

.faq h3 { font-size: 18px; margin-bottom: 8px; }
.faq p { color: var(--muted); margin-bottom: 8px; }

.foot {
  background: var(--bar);
  color: #E4E0D6;
  padding: 28px 0 36px;
}

.foot-inner {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.foot p { margin-bottom: 8px; font-size: 14px; }

@media (max-width: 960px) {
  .boards, .quad, .trio, .split { grid-template-columns: 1fr; }
  .mast-inner { flex-direction: column; align-items: flex-start; padding: 16px 0; }
  .nav { justify-content: flex-start; }
}