/* WWW: full-bleed cream, dark teal + amber, stacked pain then mend, vertical timeline */
:root {
  --pine: #0A3D3A;
  --pine-mid: #13524E;
  --cream: #F7F3E9;
  --cream-deep: #EFE6D2;
  --amber: #D4A017;
  --amber-ink: #6B4E08;
  --text: #1A2A28;
  --soft: #4D5E5B;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--text);
  font-family: Georgia, "Songti SC", "SimSun", "Microsoft YaHei", serif;
  line-height: 1.75;
}

a {
  color: var(--amber-ink);
  text-decoration: none;
}

a:hover {
  color: var(--amber);
}

.topbar {
  background: var(--pine);
  color: var(--cream);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.mark {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--cream);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 700;
}

.mark:hover {
  color: var(--cream);
}

.anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13px;
}

.anchors a {
  color: #F3E6B8;
}

.anchors a:hover {
  color: var(--amber);
}

.lead-block {
  width: min(760px, calc(100% - 48px));
  margin: 0 auto;
  padding: 56px 0 36px;
  text-align: left;
}

.lead-block h1 {
  margin: 0 0 18px;
  font-size: 34px;
  line-height: 1.4;
  color: var(--pine);
}

.lead-block p {
  margin: 0 0 12px;
  font-size: 17px;
  color: var(--soft);
}

.when {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 10px;
  background: var(--cream-deep);
  color: var(--amber-ink);
  font-size: 13px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
}

.band {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.band h2 {
  margin: 0 0 12px;
  font-size: 26px;
  color: var(--pine);
}

.intro {
  margin: 0 0 24px;
  color: var(--soft);
}

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

.jam {
  background: #fffdf7;
  border: 1px solid var(--cream-deep);
  padding: 24px 22px 20px;
  box-shadow: 8px 8px 0 var(--pine);
}

.jam svg {
  display: block;
  margin-bottom: 10px;
}

.jam h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: var(--pine);
}

.jam p {
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--soft);
}

.mend-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mend {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--pine);
  color: var(--cream);
  padding: 20px 22px;
}

.mend h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--amber);
}

.mend p {
  margin: 0 0 8px;
  font-size: 14px;
  color: #E4E0D0;
}

.chrono {
  position: relative;
  margin: 8px 0 0 12px;
  padding-left: 28px;
  border-left: 3px solid var(--amber);
}

.chrono article {
  position: relative;
  margin-bottom: 22px;
  padding: 4px 0 8px 8px;
}

.chrono article::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--amber);
  border: 3px solid var(--cream);
  border-radius: 50%;
}

.chrono h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.chrono p {
  margin: 0 0 8px;
  color: var(--soft);
  font-size: 15px;
}

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

.cell {
  background: var(--cream-deep);
  padding: 18px 16px;
  min-height: 160px;
}

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

.cell p {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--soft);
}

.split-then {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 280px;
}

.split-then > div {
  padding: 28px 26px;
}

.before {
  background: var(--pine);
  color: #E8E4D6;
}

.before h3 {
  color: var(--amber);
  margin-top: 0;
}

.after {
  background: #fffdf7;
  border: 1px solid var(--cream-deep);
}

.after h3 {
  color: var(--pine);
  margin-top: 0;
}

.split-then p {
  margin: 0 0 10px;
  font-size: 15px;
}

.qlist {
  list-style: decimal;
  padding-left: 22px;
  margin: 0;
}

.qlist > li {
  margin-bottom: 22px;
}

.qlist h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
}

.qlist p {
  margin: 0 0 8px;
  color: var(--soft);
  font-size: 15px;
}

.base {
  background: var(--pine);
  color: #D9D2BE;
  padding: 36px 0;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
}

.base-inner {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.base h2,
.base .foot-k {
  color: var(--amber);
  font-size: 15px;
  margin: 0 0 8px;
  font-weight: 700;
}

.base-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

.base p {
  margin: 0 0 8px;
  font-size: 13px;
}

.fine {
  border-top: 1px solid rgba(212, 160, 23, 0.35);
  padding-top: 14px;
  font-size: 12px;
}

@media (max-width: 860px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .jam-pair,
  .mosaic,
  .split-then,
  .base-cols {
    grid-template-columns: 1fr;
  }

  .mend {
    flex-direction: column;
  }
}