@font-face {
  font-family: "JDC Common Source Han Sans";
  src: url("./src/fonts/common/source-han-sans-sc-regular-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Sans";
  src: url("./src/fonts/common/source-han-sans-sc-regular-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Sans";
  src: url("./src/fonts/common/source-han-sans-sc-regular-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Sans";
  src: url("./src/fonts/common/source-han-sans-sc-heavy-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Sans";
  src: url("./src/fonts/common/source-han-sans-sc-heavy-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Sans";
  src: url("./src/fonts/common/source-han-sans-sc-heavy-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 900;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Serif";
  src: url("./src/fonts/common/source-han-serif-cn-heavy-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Serif";
  src: url("./src/fonts/common/source-han-serif-cn-heavy-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}
@font-face {
  font-family: "JDC Common Source Han Serif";
  src: url("./src/fonts/common/source-han-serif-cn-heavy-common-8000.woff") format("woff");
  font-style: normal;
  font-weight: 900;
  font-display: swap;
}
:root {
  --green-900: #163323;
  --green-800: #23462d;
  --green-700: #315c38;
  --green-500: #5f8c45;
  --mint: #dceec1;
  --paper: #f7f4ec;
  --paper-2: #eee7da;
  --wood: #a77848;
  --orange: #d77c38;
  --cyan: #4daaaa;
  --ink: #19251d;
  --muted: #6a6d62;
  --line: rgba(25, 37, 29, 0.14);
  --shadow: 0 22px 60px rgba(22, 51, 35, 0.18);
  --radius: 8px;
  --page-pad: clamp(20px, 5vw, 72px);
  --header-height: 78px;
  --font-serif: "JDC Common Source Han Serif", "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", STSong, Georgia, serif;
  --font-sans: "JDC Common Source Han Sans", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", Arial, sans-serif;
  --font-article: "JDC Common Source Han Sans", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Noto Sans SC", Arial, sans-serif;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}
body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(35, 70, 45, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(167, 120, 72, 0.06) 1px, transparent 1px),
    var(--paper);
  background-size: 56px 56px, 56px 56px, auto;
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
img {
  display: block;
  max-width: 100%;
  background-color: transparent;
}
a {
  color: inherit;
  text-decoration: none;
}
.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  right: 0;
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 26px;
  padding: 14px var(--page-pad);
  color: #fff;
  background: rgba(16, 36, 24, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 34px rgba(5, 18, 11, 0.24);
  backdrop-filter: blur(14px);
}
.brand-link {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}
.brand-logo {
  width: 186px;
  height: auto;
  max-height: 48px;
  object-fit: contain;
  filter: brightness(0) invert(1) drop-shadow(0 8px 18px rgba(0, 0, 0, 0.28));
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
}
.site-nav a {
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  transform: scaleX(0);
  transform-origin: center;
  background: var(--mint);
  transition: transform 180ms ease;
}
.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 4px;
  font-weight: 700;
  white-space: nowrap;
  color: var(--green-900);
  background: var(--paper);
  border: 1px solid rgba(220, 238, 193, 0.65);
}
.article-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 120px var(--page-pad) 80px;
}
.article-content {
  font-family: var(--font-article);
  font-size: 18px;
  line-height: 2;
  color: var(--ink);
}
.article-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 32px;
  color: var(--green-900);
}
.article-content p {
  margin: 0 0 24px;
  text-align: justify;
}
.article-content h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 800;
  margin: 48px 0 24px;
  color: var(--green-900);
}
.article-content h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--green-800);
}
.article-content strong {
  font-weight: 700;
  color: var(--green-900);
}
.site-footer {
  background: var(--green-900);
  color: #fff;
  padding: 60px var(--page-pad) 40px;
}
.footer-main {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto;
  gap: 48px;
  align-items: start;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.footer-logo {
  width: 186px;
  height: auto;
  max-height: 48px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.footer-lines p {
  margin: 0 0 8px;
  color: rgba(255, 255, 255, 0.86);
}
.footer-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0;
}
.footer-icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.86);
  transition: color 180ms ease;
}
.footer-links a:hover {
  color: var(--mint);
}
.footer-support {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.support-logo {
  width: 80px;
  height: auto;
}
@media (max-width: 768px) {
  .site-nav {
    display: none;
  }
  .footer-main {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-support {
    grid-column: 1;
  }
  .article-content {
    font-size: 16px;
  }
}