:root {
    --site-ink: #151413;
    --site-paper: #f5f0e8;
    --site-paper-strong: #fffdf8;
    --site-line: rgba(21, 20, 19, 0.14);
    --site-muted: #716b62;
    --site-accent: #d04f35;
    --site-accent-dark: #a93824;
    --site-serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
    --site-sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  }

  .site-skip {
    position: fixed;
    left: 16px;
    top: -72px;
    z-index: 120;
    border-radius: 999px;
    background: var(--site-ink);
    color: #fff;
    padding: 11px 18px;
    font: 700 14px/1 var(--site-sans);
    transition: top 0.18s ease;
  }

  .site-skip:focus { top: 16px; }

  .site-header {
    position: relative;
    z-index: 70;
    border-bottom: 1px solid var(--site-line);
    background: rgba(245, 240, 232, 0.94);
    color: var(--site-ink);
    font-family: var(--site-sans);
    backdrop-filter: blur(14px);
  }

  .site-header__inner {
    width: min(1180px, calc(100% - 48px));
    min-height: 76px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 40px;
  }

  .site-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--site-ink);
    text-decoration: none;
    white-space: nowrap;
  }

  .site-brand__mark {
    width: 38px;
    height: 38px;
    border: 1px solid var(--site-ink);
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-family: var(--site-serif);
    font-size: 20px;
  }

  .site-brand__copy { display: grid; gap: 1px; }
  .site-brand__copy strong { font-family: var(--site-serif); font-size: 19px; font-weight: 700; letter-spacing: 0.08em; }
  .site-brand__copy small { color: var(--site-muted); font-size: 9px; font-weight: 700; letter-spacing: 0.25em; }

  .site-nav {
    display: flex;
    justify-content: center;
    gap: 30px;
  }

  .site-nav a {
    position: relative;
    color: var(--site-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 650;
    padding: 27px 2px 25px;
  }

  .site-nav a:hover,
  .site-nav a[aria-current="page"] { color: var(--site-ink); }

  .site-nav a[aria-current="page"]::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--site-accent);
  }

  .site-actions { display: flex; align-items: center; gap: 12px; }
  .site-context { color: var(--site-muted); font-size: 12px; white-space: nowrap; }
  .site-language-control { display: inline-flex; align-items: center; }
  .site-language-control select { min-height: 38px; max-width: 120px; padding: 6px 8px; border: 1px solid var(--site-line); border-radius: 6px; background: transparent; color: inherit; font: inherit; font-size: 12px; cursor: pointer; }
  .site-language-control select:focus-visible { outline: 2px solid var(--site-accent); outline-offset: 3px; }
  .site-language-control__label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

  .site-icon-button {
    width: 40px;
    height: 40px;
    border: 1px solid var(--site-line);
    border-radius: 50%;
    background: transparent;
    color: var(--site-ink);
    display: grid;
    place-items: center;
    cursor: pointer;
  }

  .site-icon-button:hover { border-color: rgba(21, 20, 19, 0.4); background: rgba(255,255,255,0.45); }
  .site-icon-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
  .site-menu-button { display: none; }

  .site-search-layer,
  .site-menu-layer {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(21, 20, 19, 0.42);
    backdrop-filter: blur(10px);
  }

  .site-search-layer[hidden],
  .site-menu-layer[hidden] { display: none; }

  .site-search-panel {
    width: min(740px, calc(100% - 40px));
    margin: 120px auto 0;
    border: 1px solid rgba(255,255,255,0.45);
    border-radius: 24px;
    background: var(--site-paper-strong);
    color: var(--site-ink);
    padding: 30px;
    box-shadow: 0 34px 90px rgba(20,18,15,0.25);
    font-family: var(--site-sans);
  }

  .site-search-panel__top { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
  .site-search-panel__top strong { font-family: var(--site-serif); font-size: 26px; }
  .site-search-panel__top button { border: 0; background: transparent; color: var(--site-muted); cursor: pointer; font-size: 14px; }
  .site-search-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
  .site-search-form input {
    min-width: 0;
    border: 1px solid rgba(21,20,19,0.25);
    border-radius: 13px;
    background: #fff;
    color: var(--site-ink);
    padding: 15px 17px;
    font: 500 16px/1.3 var(--site-sans);
    outline: none;
  }
  .site-search-form input:focus { border-color: var(--site-accent); box-shadow: 0 0 0 3px rgba(208,79,53,0.12); }
  .site-search-form button {
    border: 0;
    border-radius: 13px;
    background: var(--site-accent);
    color: #fff;
    padding: 0 24px;
    font: 750 14px/1 var(--site-sans);
    cursor: pointer;
  }
  .site-search-panel p { margin: 16px 0 0; color: var(--site-muted); font-size: 12px; line-height: 1.6; }

  .site-menu-panel {
    position: absolute;
    inset: 0 0 auto;
    min-height: 100%;
    background: var(--site-paper-strong);
    color: var(--site-ink);
    padding: 28px 24px 44px;
    font-family: var(--site-sans);
  }
  .site-menu-panel__top { display: flex; align-items: center; justify-content: space-between; }
  .site-menu-links { display: grid; gap: 4px; margin-top: 48px; }
  .site-menu-links a { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--site-line); color: var(--site-ink); padding: 20px 2px; text-decoration: none; font-family: var(--site-serif); font-size: 28px; }
  .site-menu-links a::after { content: "→"; color: var(--site-accent); font: 400 20px/1 var(--site-sans); }
  .site-menu-meta { margin-top: 30px; color: var(--site-muted); font-size: 13px; }

  .site-footer {
    border-top: 1px solid var(--site-line);
    background: var(--site-paper);
    color: var(--site-muted);
    font-family: var(--site-sans);
  }
  .site-footer__inner {
    width: min(1180px, calc(100% - 48px));
    min-height: 84px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    font-size: 12px;
  }
  .site-footer__links { display: flex; flex-wrap: wrap; gap: 20px; }
  .site-footer a { color: var(--site-muted); text-decoration: none; }
  .site-footer a:hover { color: var(--site-ink); }
  body [hidden] { display: none !important; }
  .site-icp {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
    padding: 0 0 24px;
    font-size: 12px;
    line-height: 1.6;
    color: var(--site-muted);
  }

  .site-bottom-nav { display: none; }

  .site-icon-button:focus-visible,
  .site-nav a:focus-visible,
  .site-footer a:focus-visible,
  .site-bottom-nav a:focus-visible,
  .site-menu-links a:focus-visible {
    outline: 3px solid rgba(208,79,53,0.35);
    outline-offset: 3px;
  }

  @media (max-width: 760px) {
    body { padding-bottom: calc(68px + env(safe-area-inset-bottom)); }
    .site-header__inner { width: calc(100% - 32px); min-height: 66px; grid-template-columns: 1fr auto; gap: 12px; }
    .site-brand__mark { width: 34px; height: 34px; font-size: 18px; }
    .site-brand__copy strong { font-size: 17px; }
    .site-nav, .site-context { display: none; }
    .site-actions { gap: 8px; }
    .site-menu-button { display: grid; }
    .site-search-panel { margin-top: 72px; border-radius: 20px; padding: 22px; }
    .site-search-panel__top strong { font-size: 22px; }
    .site-search-form { grid-template-columns: 1fr; }
    .site-search-form button { min-height: 48px; }
    .site-footer__inner { width: calc(100% - 32px); min-height: 112px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 14px; }
    .site-footer__links { gap: 14px; }
    .site-bottom-nav {
      position: fixed;
      z-index: 80;
      left: 12px;
      right: 12px;
      bottom: calc(10px + env(safe-area-inset-bottom));
      height: 58px;
      border: 1px solid rgba(255,255,255,0.65);
      border-radius: 18px;
      background: rgba(31,29,27,0.94);
      box-shadow: 0 18px 40px rgba(0,0,0,0.24);
      backdrop-filter: blur(18px);
      display: grid;
      grid-template-columns: repeat(5,1fr);
      padding: 5px 8px;
      font-family: var(--site-sans);
    }
    .site-bottom-nav a {
      position: relative;
      display: grid;
      place-items: center;
      align-content: center;
      gap: 3px;
      color: rgba(255,255,255,0.66);
      text-decoration: none;
      font-size: 10px;
    }
    .site-bottom-nav a::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
    .site-bottom-nav a[aria-current="page"] { color: #fff; }
    .site-bottom-nav a[aria-current="page"]::after { content: ""; position: absolute; top: 0; width: 28px; height: 2px; border-radius: 2px; background: var(--site-accent); }
  }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}