:root {
  --orange: #e85d04;
  --brown: #370617;
  --cream: #fff6e8;
  --cream-deep: #f3e2c7;
  --paper: #fffdf8;
  --line: #e7c9a3;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--brown);
  background: var(--cream);
  font-family: "Trebuchet MS", Trebuchet, "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

svg {
  display: block;
}

a {
  color: var(--orange);
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.masthead {
  background: var(--brown);
  color: var(--cream);
}

.masthead a {
  color: var(--cream);
  text-decoration: none;
}

.mast-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.logo svg {
  width: 34px;
  height: 34px;
}

.menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 14px;
  font-size: 14px;
}

.menu a {
  border-bottom: 2px solid transparent;
}

.menu a:hover {
  border-bottom-color: var(--orange);
}

.hero {
  background: var(--orange);
  color: #fff8ef;
  padding: 42px 0 36px;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1.32;
  max-width: 16em;
}

.hero p {
  margin: 0;
  max-width: 46em;
  font-size: 17px;
}

.tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 28px 0 8px;
}

.tile {
  background: var(--paper);
  border: 2px solid var(--brown);
  padding: 16px 14px 14px;
  min-height: 168px;
}

.tile .mark {
  width: 36px;
  height: 36px;
  background: var(--orange);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  margin-bottom: 10px;
}

.tile svg {
  width: 26px;
  height: 26px;
  margin-bottom: 8px;
}

.tile h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.tile p {
  margin: 0;
  font-size: 14.5px;
}

.block {
  padding: 32px 0 8px;
}

.block h2 {
  margin: 0 0 14px;
  font-size: 25px;
  line-height: 1.4;
  border-left: 8px solid var(--orange);
  padding-left: 12px;
}

.block p {
  margin: 0 0 12px;
}

.rail {
  display: grid;
  gap: 0;
  margin: 18px 0;
  border-left: 3px solid var(--orange);
}

.rail-item {
  padding: 0 0 22px 22px;
  position: relative;
}

.rail-item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 6px;
  width: 13px;
  height: 13px;
  background: var(--brown);
  border: 2px solid var(--orange);
}

.rail-item h3 {
  margin: 0 0 6px;
}

.rail-item p {
  margin: 0;
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0;
}

.pair article {
  background: var(--paper);
  border-top: 5px solid var(--brown);
  padding: 16px;
}

.pair article.alt {
  border-top-color: var(--orange);
}

.pair h3 {
  margin: 0 0 8px;
}

.pair p {
  margin: 0;
}

.sheet {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  background: var(--paper);
}

.sheet th,
.sheet td {
  border: 1px solid var(--line);
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
}

.sheet th {
  background: var(--brown);
  color: var(--cream);
}

.sheet tr:nth-child(odd) td {
  background: #fffaf0;
}

.icon-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 16px 0;
}

.icon-box {
  background: var(--paper);
  padding: 14px;
  border: 1px dashed var(--orange);
}

.icon-box svg {
  width: 28px;
  height: 28px;
  margin-bottom: 8px;
}

.icon-box h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.icon-box p {
  margin: 0;
  font-size: 14px;
}

.faq-band {
  background: var(--brown);
  color: var(--cream);
  padding: 36px 0 28px;
  margin-top: 28px;
}

.faq-band h2 {
  border-left-color: var(--orange);
}

.faq-band a {
  color: #ffd7a8;
}

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.faq-card {
  background: #4a1020;
  padding: 14px 16px;
}

.faq-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: #ffd19a;
}

.faq-card p {
  margin: 0;
}

.foot {
  background: #2a0410;
  color: #f6e6d2;
  padding: 32px 0;
}

.foot p {
  margin: 0 0 10px;
}

.foot .meta {
  color: #c9b39a;
  font-size: 13px;
}

@media (max-width: 900px) {
  .mast-row {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 0;
  }

  .tiles,
  .pair,
  .icon-row,
  .faq-grid {
    grid-template-columns: 1fr;
  }
}