/* 官网共用夜港主题：不改变线上群岛所用site.css。 */
.site-night {
  --f-text: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "PingFang SC", "Hiragino Kaku Gothic ProN", "Malgun Gothic", sans-serif;
  --night: #061e1c;
  --night-soft: #0b2925;
  --light: #f3ead0;
  --muted: #b9ccc2;
  --line: #29443b;
  color-scheme: dark;
  background: var(--night);
  background-image: none;
  color: #e1e9e2;
  font: 400 17px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "PingFang SC", "Hiragino Kaku Gothic ProN", "Malgun Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
}
html[data-script="latin"] .site-night { font-size: 17px; line-height: 1.75; }
.site-night [hidden] { display: none !important; }
.site-night a { text-underline-offset: 4px; }
.site-night h1, .site-night h2, .site-night h3 { color: var(--light); letter-spacing: -.025em; }
.site-night .wrap { max-width: 1320px; padding-inline: clamp(24px, 5vw, 64px); }
.site-night .icon { display: block; width: 22px; height: 22px; flex: none; fill: currentColor; }
.site-night :focus-visible { outline: 2px solid #e7ce8c; outline-offset: 6px; }

/* 适中的十语官方Logo，不再重复大标题。 */
.site-night .nav { background: transparent; border: 0; }
.site-night .nav .wrap { max-width: 1440px; height: 106px; gap: 32px; }
.site-night .nav .brand { display: block; flex: none; padding: 12px 0; }
.site-night .brand-logo { display: block; width: 220px; height: auto; }
.site-night .nav > .wrap > ul { margin-left: auto; gap: 28px; font-size: 15px; letter-spacing: 0; }
.site-night .nav a { color: var(--light); text-decoration: none; }
.site-night .nav a:hover { color: #fff9e8; text-decoration: underline; }
.site-night .nav-tools { display: flex; align-items: center; gap: 12px; }
.site-night .nav-tools details { position: relative; }
.site-night .nav-tools summary { display: flex; align-items: center; justify-content: center; gap: 9px; min-height: 44px; padding: 8px; color: var(--light); font-size: 14px; cursor: pointer; list-style: none; }
.site-night summary::-webkit-details-marker { display: none; }
.site-night .nav-tools ul { position: absolute; right: 0; top: calc(100% + 10px); display: grid; gap: 0; width: max-content; min-width: 190px; max-width: calc(100vw - 48px); margin: 0; padding: 9px; background: #102e28; border: 1px solid #355046; border-radius: 10px; font-size: 15px; letter-spacing: 0; box-shadow: 0 18px 42px #00120fa6; z-index: 6; }
.site-night .nav-tools details:not([open]) > ul { display: none; }
.site-night .nav-tools li a { display: flex; align-items: center; min-height: 44px; padding: 8px 14px; border-radius: 5px; }
.site-night .nav-tools li a:hover, .site-night .nav-tools li a[aria-current] { background: #1c3d32; text-decoration: none; }
.site-night .mobile-menu { display: none; }

.site-night footer { background: #051613; border-top: 1px solid var(--line); color: #a1b9aa; }
.site-night footer h3, .site-night footer .brand { font-family: inherit; color: var(--light); text-transform: none; letter-spacing: 0; }
.site-night footer .brand { font-size: 20px; font-weight: 600; }
.site-night footer a:hover, .site-night footer a[aria-current] { color: var(--light); }

@media (max-width: 900px) {
  .site-night .nav > .wrap > ul { display: none; }
  .site-night .mobile-menu { display: block; }
}
@media (max-width: 720px) {
  .site-night .nav .wrap { height: 86px; padding-inline: 20px; gap: 8px; }
  .site-night .brand-logo { width: clamp(128px, 44vw, 180px); }
  .site-night .nav-tools { gap: 0; margin-left: auto; }
  .site-night .nav-tools summary { padding: 8px 5px; font-size: 12px; gap: 6px; }
  .site-night .language-picker summary .icon { display: none; }
  .site-night .nav-tools .mobile-menu summary { min-width: 40px; }
  .site-night .nav-tools .mobile-menu ul { right: 0; }
}
@media (max-width: 360px) {
  .site-night .brand-logo { width: 128px; }
  .site-night .nav .wrap { padding-inline: 16px; }
  .site-night .nav-tools summary { font-size: 11px; }
}

/* 无脚本语言选择、固定隐私入口和404也沿用官网主题。 */
.site-night .choose .brand { color: var(--light); font-family: inherit; font-size: 24px; font-weight: 600; line-height: 1.4; letter-spacing: .08em; }
.site-night .choose a { display: flex; align-items: center; justify-content: center; min-height: 48px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 8px; color: var(--light); font-size: 16px; text-decoration: none; }
.site-night .choose a:hover { background: var(--night-soft); }
@media (max-width: 480px) { .site-night .choose ul { gap: 12px; } }