:root {
  --teal: #0d4f4f;
  --teal-deep: #083838;
  --cream: #f4efe4;
  --cream-soft: #fff8ee;
  --coral: #d35400;
  --coral-deep: #a84300;
  --ink: #24302c;
  --muted: #4d5d57;
  --line: #c9c0ae;
  --card: #fffdf8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: "Palatino Linotype", "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif SC", "SimSun", serif;
  font-size: 17px;
  line-height: 1.75;
}

img,
svg {
  max-width: 100%;
  vertical-align: middle;
}

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

a:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100vh;
  z-index: 20;
  display: flex;
  flex-direction: column;
  background: var(--teal);
  color: var(--cream);
  overflow: auto;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 168px;
  padding: 28px 0;
  color: var(--cream);
  text-decoration: none;
  writing-mode: vertical-rl;
  letter-spacing: 0.42em;
  font-size: 1.7rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(244, 239, 228, 0.14);
}

.side-nav {
  display: flex;
  flex-direction: column;
  padding: 18px 0 8px;
}

.side-nav a {
  display: block;
  padding: 11px 18px 11px 16px;
  border-left: 4px solid transparent;
  color: var(--cream);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.side-nav a:hover {
  background: rgba(244, 239, 228, 0.08);
}

.side-nav a[aria-current="page"] {
  border-left-color: var(--coral);
  background: rgba(244, 239, 228, 0.12);
}

.side-cta {
  display: block;
  margin: 16px 16px 22px;
  padding: 12px 10px;
  background: var(--coral);
  color: #fff8f2;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.side-cta:hover {
  background: var(--coral-deep);
}

.side-note {
  margin: 0 16px 24px;
  color: rgba(244, 239, 228, 0.78);
  font-size: 0.78rem;
  line-height: 1.55;
}

main {
  margin-left: 240px;
  min-height: 100vh;
}

.hero {
  background: var(--cream-soft);
  border-bottom: 1px solid var(--line);
  padding: 52px 28px 44px;
  text-align: center;
}

.hero h1 {
  margin: 0 auto 16px;
  max-width: 860px;
  color: var(--teal);
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  line-height: 1.35;
}

.hero .lead,
.hero .pack-warn {
  margin: 0 auto 18px;
  max-width: 760px;
  color: var(--muted);
}

.hero .pack-warn {
  font-size: 0.92rem;
}

.btn {
  display: inline-block;
  min-width: 220px;
  padding: 14px 28px;
  background: var(--coral);
  color: #fff8f2;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
}

.btn:hover {
  background: var(--coral-deep);
}

.btn-line {
  display: inline-block;
  margin: 8px 6px 0;
  padding: 10px 16px;
  border: 1px solid var(--teal);
  color: var(--teal);
  text-decoration: none;
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
}

.wrap {
  width: min(920px, calc(100% - 56px));
  margin: 0 auto;
  padding: 36px 0 8px;
}

.wrap h2 {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 1.38rem;
  line-height: 1.4;
}

.wrap p {
  margin: 0 0 14px;
}

.entry-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.entry-list li {
  margin: 0 0 12px;
  padding: 14px 16px;
  background: var(--card);
  border-left: 4px solid var(--teal);
}

.caps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0 8px;
}

.cap {
  padding: 16px 14px 14px;
  background: var(--card);
  border: 1px solid var(--line);
}

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

.cap h3 {
  margin: 0 0 8px;
  color: var(--teal);
  font-size: 1.02rem;
}

.cap p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.news {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  margin: 8px 0 12px;
}

.news-item {
  padding: 16px 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
}

.news-item:nth-child(-n + 3) {
  grid-column: span 2;
}

.news-item:nth-child(n + 4) {
  grid-column: span 3;
}

.news-item h3 {
  margin: 0 0 8px;
  color: var(--teal-deep);
  font-size: 1rem;
  line-height: 1.45;
}

.news-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.essay {
  padding-bottom: 8px;
}

.essay ol {
  margin: 8px 0 16px;
  padding: 0;
  list-style: none;
  counter-reset: point;
}

.essay ol li {
  position: relative;
  margin: 0 0 12px;
  padding: 10px 12px 10px 48px;
  background: var(--card);
  border: 1px solid var(--line);
  counter-increment: point;
}

.essay ol li::before {
  position: absolute;
  left: 12px;
  top: 12px;
  color: var(--teal);
  font-weight: 700;
  content: counter(point, decimal-leading-zero);
}

.compare-card {
  margin: 0 0 14px;
  padding: 18px 18px 8px;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 5px solid var(--teal);
}

.compare-card h3 {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 1.08rem;
}

.faq-item {
  margin: 0 0 14px;
  padding: 14px 16px 6px;
  background: var(--card);
  border-left: 4px solid var(--teal);
}

.faq-item h3 {
  margin: 0 0 8px;
  color: var(--teal-deep);
  font-size: 1.02rem;
}

.risk {
  margin-bottom: 12px;
  padding: 18px 18px 6px;
  background: #f7e6d6;
  border: 1px solid #e0b48a;
}

.foot {
  margin-left: 240px;
  padding: 22px 28px 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

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

.foot p:last-child {
  margin-bottom: 0;
}

@media (max-width: 960px) {
  .caps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .sidebar {
    position: relative;
    left: 0;
    width: 100%;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .brand {
    min-height: 0;
    padding: 12px 16px;
    writing-mode: horizontal-tb;
    letter-spacing: 0.18em;
    border-bottom: 0;
  }

  .side-nav {
    flex: 1;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0;
  }

  .side-nav a {
    border-left: 0;
    border-bottom: 3px solid transparent;
    padding: 12px 12px 9px;
  }

  .side-nav a[aria-current="page"] {
    border-bottom-color: var(--coral);
    background: transparent;
  }

  .side-cta {
    margin: 8px 12px;
    padding: 8px 12px;
  }

  .side-note {
    display: none;
  }

  main,
  .foot {
    margin-left: 0;
  }

  .hero {
    padding: 32px 18px 28px;
  }

  .wrap {
    width: calc(100% - 36px);
  }

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

  .news-item:nth-child(-n + 3),
  .news-item:nth-child(n + 4) {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .caps {
    grid-template-columns: 1fr;
  }

  .btn {
    min-width: 0;
    width: 100%;
  }
}