:root {
  --bg: #F5F0E6;
  --ink: #2A1C10;
  --fade: #6B5340;
  --bar: #5B3A1A;
  --warn: #A16207;
  --card: #FFF7ED;
  --line: #E6D3B4;
}

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

body {
  font-family: "Trebuchet MS", Tahoma, "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.72;
}

svg { display: block; }
a { color: var(--warn); text-decoration: none; }
a:hover { text-decoration: underline; }

.tape {
  height: 8px;
  background: repeating-linear-gradient(
    90deg,
    var(--warn) 0 18px,
    #F5F0E6 18px 28px
  );
}

.head {
  background: var(--bar);
  color: #FFF7ED;
}

.inner {
  width: min(960px, calc(100% - 36px));
  margin: 0 auto;
}

.head-row {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 0 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #FFF7ED;
  font-size: 18px;
  font-weight: 700;
}

.logo:hover { text-decoration: none; color: #fff; }
.logo svg { width: 30px; height: 30px; }

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.links a {
  color: #F8E8C8;
  font-size: 14px;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

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

.hero { padding: 36px 0 12px; }

.hero h1 {
  font-size: clamp(26px, 4.2vw, 36px);
  line-height: 1.35;
  margin-bottom: 14px;
}

.hero p {
  color: var(--fade);
  font-size: 17px;
  margin-bottom: 10px;
}

.mod { padding: 28px 0; }

.mod h2 {
  font-size: 24px;
  margin-bottom: 10px;
  padding-left: 12px;
  border-left: 6px solid var(--warn);
}

.blurb {
  color: var(--fade);
  margin: 0 0 16px 18px;
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.col {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 20px 18px;
}

.col.later { border-top: 5px solid var(--warn); }
.col.first { border-top: 5px solid var(--bar); }

.col h3 { margin-bottom: 10px; font-size: 19px; }
.col p { color: var(--fade); margin-bottom: 10px; }
.col svg { width: 40px; height: 40px; margin-bottom: 8px; }

.leftover {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.bit {
  background: var(--card);
  padding: 16px 12px;
  border: 1px solid var(--line);
  min-height: 230px;
}

.bit svg { width: 34px; height: 34px; margin-bottom: 8px; }
.bit h3 { font-size: 16px; margin-bottom: 8px; }
.bit p { font-size: 14px; color: var(--fade); }

.stairs { display: flex; flex-direction: column; gap: 10px; }

.stair {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 14px;
}

.stair b {
  width: 48px;
  height: 48px;
  background: var(--bar);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.stair h3 { font-size: 17px; margin-bottom: 6px; }
.stair p { color: var(--fade); font-size: 15px; }

table.diff {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
}

.diff th,
.diff td {
  border: 1px solid var(--line);
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  font-size: 15px;
}

.diff th { background: var(--bar); color: #FFF7ED; }

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

.risk {
  background: var(--card);
  padding: 16px;
  border-bottom: 4px solid var(--warn);
}

.risk svg { width: 36px; height: 36px; margin-bottom: 8px; }
.risk h3 { font-size: 17px; margin-bottom: 8px; }
.risk p { color: var(--fade); font-size: 15px; }

.ban {
  background: #fff;
  border: 1px solid var(--line);
  padding: 8px 0;
}

.ban li {
  list-style: none;
  padding: 12px 16px 12px 44px;
  position: relative;
  border-bottom: 1px solid var(--line);
  color: var(--fade);
}

.ban li:last-child { border-bottom: 0; }

.ban li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  width: 14px;
  height: 14px;
  background: var(--warn);
  clip-path: polygon(0 40%, 40% 40%, 40% 0, 60% 0, 60% 40%, 100% 40%, 100% 60%, 60% 60%, 60% 100%, 40% 100%, 40% 60%, 0 60%);
  transform: rotate(45deg);
}

.edge {
  background: var(--bar);
  color: #F8EBD4;
  padding: 20px 18px;
}

.edge h2 { color: #fff; border-left-color: var(--warn); }
.edge .blurb { color: #E6D3B4; }
.edge p { margin-bottom: 10px; }

.ask { margin-bottom: 12px; background: var(--card); padding: 14px 16px; border-left: 4px solid var(--bar); }
.ask h3 { font-size: 17px; margin-bottom: 8px; }
.ask p { color: var(--fade); margin-bottom: 8px; }

.base {
  background: var(--bar);
  color: #EBDDC4;
  padding: 26px 0 32px;
}

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

@media (max-width: 860px) {
  .pair, .leftover, .three { grid-template-columns: 1fr; }
}