:root {
  --kraft: #C4A574;
  --paper: #F3E6D0;
  --ink: #3D2B1F;
  --stamp: #8B1E1E;
  --label: #6B4F3A;
  --leaf: #f7edd8;
  --card: #fff8ea;
}

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

html {
  font-size: 16px;
}

body {
  font-family: SimSun, STSong, "Songti SC", "Noto Serif SC", serif;
  color: var(--ink);
  line-height: 1.9;
  background-color: #a9845a;
  background-image:
    repeating-linear-gradient(
      90deg,
      rgba(61, 43, 31, 0.07) 0,
      rgba(61, 43, 31, 0.07) 1px,
      transparent 1px,
      transparent 26px
    ),
    linear-gradient(180deg, #c4a574 0%, #b08968 42%, #8f6d45 100%);
  min-height: 100vh;
}

img,
svg {
  display: block;
}

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

p + p {
  margin-top: 0.85em;
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.45;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.cabinet-rail {
  background: linear-gradient(180deg, #6b4f3a 0%, #3d2b1f 100%);
  border-bottom: 10px solid #2a1c14;
  box-shadow:
    inset 0 -5px 0 #c4a574,
    0 8px 0 rgba(42, 28, 20, 0.18);
}

.rail-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 10px 18px 0;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.18em;
  padding: 6px 0 10px;
  border-bottom: 1px dashed #c4a574;
}

.brand-row b {
  letter-spacing: 0.12em;
}

.rail-bolts {
  display: flex;
  gap: 10px;
  align-items: center;
}

.file-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 10px;
  align-items: flex-end;
}

.tab {
  display: inline-block;
  text-decoration: none;
  color: var(--paper);
  background: var(--label);
  border: 2px solid #2a1c14;
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  padding: 9px 26px 8px;
  position: relative;
  top: 2px;
}

.tab.is-current {
  background: var(--paper);
  color: var(--stamp);
  top: 7px;
  padding-bottom: 14px;
  font-weight: 700;
  box-shadow: inset 0 4px 0 var(--stamp);
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 16px 56px;
}

.notice-slip {
  background: var(--paper);
  border: 2px dashed var(--stamp);
  color: var(--stamp);
  padding: 10px 14px;
  margin-bottom: 18px;
  font-size: 15px;
}

.folder-spread {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--kraft);
  border: 5px solid var(--ink);
  box-shadow: 12px 12px 0 rgba(61, 43, 31, 0.22);
  position: relative;
  margin-bottom: 28px;
}

.folder-spread::before {
  content: "";
  position: absolute;
  top: -18px;
  left: 36px;
  width: 120px;
  height: 18px;
  background: var(--label);
  border: 3px solid var(--ink);
  border-bottom: none;
}

.folder-clasp {
  position: absolute;
  left: 50%;
  top: 18px;
  transform: translateX(-50%);
  z-index: 2;
}

.leaf {
  background: var(--paper);
  margin: 22px 16px;
  padding: 26px 24px 28px;
  border: 1px solid var(--label);
  box-shadow: inset 0 0 0 7px var(--leaf);
  min-height: 340px;
}

.leaf-recto {
  background: #efe0c4;
  box-shadow: inset 0 0 0 7px #f3e6d0;
}

.kicker {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--label);
  margin-bottom: 8px;
}

.leaf h1 {
  font-size: 26px;
  margin-bottom: 14px;
}

.stamp-ring {
  width: 138px;
  height: 138px;
  margin: 8px auto 16px;
  border: 6px double var(--stamp);
  border-radius: 50%;
  color: var(--stamp);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.16em;
  transform: rotate(-11deg);
  line-height: 1.35;
}

.btn-draw {
  display: block;
  width: 100%;
  margin: 8px 0;
  padding: 11px 14px;
  background: var(--stamp);
  color: var(--paper);
  border: 2px solid var(--ink);
  font-family: inherit;
  font-size: 16px;
  cursor: pointer;
}

.btn-draw:hover {
  background: var(--label);
  color: var(--paper);
}

.btn-mac {
  background: var(--label);
}

.btn-ios {
  background: #3d2b1f;
}

.btn-and {
  background: #5c3d2a;
}

.btn-win-lg {
  font-size: 18px;
  padding: 16px 14px;
  box-shadow: 4px 4px 0 #3d2b1f;
}

.juan {
  display: grid;
  grid-template-columns: 88px 1fr;
  background: var(--paper);
  border: 2px solid var(--ink);
  margin: 26px 0;
  box-shadow: 7px 7px 0 rgba(107, 79, 58, 0.22);
}

.juan-no {
  background: var(--label);
  color: var(--paper);
  writing-mode: vertical-rl;
  letter-spacing: 0.42em;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 8px;
  border-right: 5px solid var(--stamp);
  font-weight: 700;
}

.juan-body {
  padding: 20px 24px 26px;
}

.juan-body h2 {
  font-size: 22px;
  border-bottom: 2px solid var(--kraft);
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.juan-body h3 {
  font-size: 18px;
  color: var(--label);
  margin: 16px 0 8px;
}

.subhead {
  font-size: 15px;
  color: var(--label);
  margin-bottom: 10px;
}

.hang-list {
  margin: 12px 0 0 1.2em;
}

.hang-list li {
  margin: 8px 0;
}

.platform-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.platform-row {
  display: grid;
  grid-template-columns: 96px 1fr 210px;
  gap: 12px;
  align-items: center;
  border-bottom: 1px dashed var(--label);
  padding: 10px 0;
}

.platform-row span {
  font-weight: 700;
  color: var(--stamp);
}

.card-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 8px;
}

.index-card {
  background: var(--card);
  border: 1px solid var(--label);
  padding: 16px 20px 18px;
  box-shadow: 3px 3px 0 var(--kraft);
  background-image: repeating-linear-gradient(
    var(--card) 0 28px,
    #d9c4a0 28px 29px
  );
}

.index-card .who {
  color: var(--stamp);
  font-weight: 700;
  margin-bottom: 6px;
}

.ledger-wrap {
  overflow-x: auto;
  margin-top: 10px;
}

.ledger {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  min-width: 560px;
}

.ledger th,
.ledger td {
  border: 1px solid var(--label);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.ledger th {
  background: var(--kraft);
}

.chop-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 12px;
}

.chop-cell {
  border: 3px solid var(--stamp);
  padding: 14px 12px 16px;
  text-align: center;
  background: var(--leaf);
}

.chop-cell strong {
  display: block;
  width: 86px;
  height: 86px;
  margin: 0 auto 10px;
  border: 3px double var(--stamp);
  color: var(--stamp);
  font-size: 34px;
  line-height: 80px;
}

.faq-item {
  border-bottom: 1px dashed var(--label);
  padding: 14px 0 16px;
}

.faq-item h3 {
  color: var(--stamp);
  margin: 0 0 8px;
  font-size: 18px;
}

.cta-slip {
  display: inline-block;
  margin: 12px 0;
  background: var(--stamp);
  color: var(--paper);
  text-decoration: none;
  padding: 14px 28px;
  border: 3px double var(--paper);
  outline: 3px solid var(--stamp);
  font-size: 18px;
}

.cta-slip:hover {
  background: var(--label);
}

.article-flow h2 {
  font-size: 22px;
  margin: 22px 0 10px;
  padding-left: 10px;
  border-left: 6px solid var(--stamp);
}

.article-flow h3 {
  font-size: 18px;
  margin: 16px 0 8px;
  color: var(--label);
}

.date-line {
  font-size: 14px;
  color: var(--label);
  margin: 8px 0 14px;
}

.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding: 28px 16px 40px;
}

.foot-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.foot-inner p + p {
  margin-top: 10px;
}

.foot-nav {
  margin: 14px 0;
}

.foot-nav a {
  color: var(--kraft);
  margin-right: 16px;
}

@media (max-width: 860px) {
  .folder-spread {
    grid-template-columns: 1fr;
  }

  .folder-spread::before {
    left: 16px;
  }

  .juan {
    grid-template-columns: 1fr;
  }

  .juan-no {
    writing-mode: horizontal-tb;
    letter-spacing: 0.18em;
    border-right: none;
    border-bottom: 5px solid var(--stamp);
    padding: 10px 12px;
  }

  .platform-row {
    grid-template-columns: 1fr;
  }

  .chop-row {
    grid-template-columns: 1fr;
  }

  .leaf {
    min-height: 0;
  }

  .brand-row {
    flex-direction: column;
    align-items: flex-start;
    letter-spacing: 0.08em;
  }
}