:root {
  --navy: #0b1f3a;
  --navy-2: #122846;
  --gold: #c9a227;
  --gold-dim: #8a7018;
  --paper: #f4efe3;
  --ink: #0e1726;
  --muted: #4c5668;
  --line: #d7cba8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  font-family: Georgia, "Songti SC", "SimSun", "Microsoft YaHei", serif;
  background: var(--navy);
  color: var(--ink);
  line-height: 1.7;
}

a {
  color: var(--gold-dim);
  text-decoration: none;
}

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

.mast {
  background: var(--navy);
  border-bottom: 2px solid var(--gold);
  color: var(--paper);
}

.mast-inner {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 24px 0 8px;
  align-items: start;
}

.sidenav {
  position: sticky;
  top: 16px;
  width: 220px;
  background: var(--navy-2);
  border: 1px solid var(--gold);
  padding: 16px 12px;
  color: var(--paper);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.sidenav a {
  display: block;
  color: #e8d9a8;
  padding: 8px 8px;
  border-left: 3px solid transparent;
}

.sidenav a:hover {
  border-left-color: var(--gold);
  color: #fff;
}

.main {
  background: var(--paper);
  border: 1px solid var(--gold);
  padding: 28px 28px 12px;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
  margin-bottom: 28px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  line-height: 1.35;
}

.hero p {
  margin: 0 0 8px;
  color: var(--muted);
}

.mock {
  border: 2px solid var(--gold);
  background: #fffdf6;
  padding: 14px;
  min-height: 160px;
}

.mock-quote {
  border-left: 4px solid var(--gold);
  padding: 6px 10px;
  color: var(--gold-dim);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.mock-draft {
  min-height: 72px;
  border: 1px dashed var(--line);
  padding: 8px;
  color: #3d3a32;
  font-size: 0.92rem;
}

.section {
  padding: 8px 0 22px;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 1.28rem;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 6px;
}

.bento {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 12px;
}

.bento article {
  background: #fff;
  border: 1px solid var(--line);
  padding: 14px 16px;
}

.bento h3 {
  margin: 6px 0 8px;
  font-size: 1.02rem;
}

.bento p {
  margin: 0 0 8px;
}

.timeline {
  border-left: 3px solid var(--gold);
  margin: 12px 0 0 8px;
  padding-left: 18px;
}

.tl {
  position: relative;
  margin-bottom: 16px;
  background: #fff;
  padding: 12px 14px;
}

.tl::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 16px;
  width: 12px;
  height: 12px;
  background: var(--gold);
  transform: rotate(45deg);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--gold);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

th {
  background: var(--navy);
  color: var(--gold);
}

.stack article {
  background: #fff;
  border-top: 4px solid var(--gold);
  border: 1px solid var(--line);
  border-top-width: 4px;
  padding: 14px 16px;
  margin-bottom: 12px;
}

.quote-box {
  background: #fffdf6;
  border: 2px solid var(--gold);
  padding: 16px;
}

.faq {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.faq-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.faq-item dt {
  font-weight: 700;
}

.faq-item dd {
  margin: 0;
  color: #2c3340;
}

footer {
  background: #071526;
  color: #e8d9a8;
  padding: 24px 0 28px;
  margin-top: 8px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.foot-wrap {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

footer p {
  margin: 0 0 8px;
}

@media (max-width: 900px) {
  .shell,
  .hero,
  .bento {
    grid-template-columns: 1fr;
  }

  .sidenav {
    position: static;
    width: auto;
  }
}