/* 全站基础:Steam 商店配色、全局导航、页脚、按钮、中英切换 */
:root {
  --bg: #1b2838;
  --bg-deep: #171a21;
  --panel: #16202d;
  --panel-2: rgba(0, 0, 0, 0.2);
  --line: rgba(255, 255, 255, 0.08);
  --text: #c6d4df;
  --text-dim: #8f98a0;
  --text-mute: #556772;
  --white: #ffffff;
  --link: #66c0f4;
  --link-hover: #ffffff;
  --tag-bg: rgba(103, 193, 245, 0.2);
  --green-1: #75b022;
  --green-2: #588a1b;
  --green-text: #d2efa9;
  --blue-1: #47bfff;
  --blue-2: #1a44c2;
  --qq: #31c27c;
  --ncm: #e60026;
  --bar-before: #5c6b7a;
  --bar-after: #3a96cf;
  --font:
    "Motiva Sans", "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--link);
  text-decoration: none;
}
a:hover {
  color: var(--link-hover);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
code,
kbd {
  font-family: var(--mono);
  font-size: 0.92em;
}
:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

/* 中英切换:由 head 中的脚本在首帧前设置 html[lang] */
html:lang(en) .zh,
html:not(:lang(en)) .en {
  display: none !important;
}

.wrap {
  width: min(1040px, 100% - 32px);
  margin-inline: auto;
}

/* ---------- 全局导航 ---------- */
.gnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-deep);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}
.gnav-in {
  width: min(1040px, 100% - 32px);
  margin-inline: auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  letter-spacing: 0.08em;
  font-size: 17px;
  white-space: nowrap;
}
.brand img {
  border-radius: 6px;
}
.brand b {
  font-weight: 700;
  margin-left: 0.35em;
  color: var(--link);
}
.gmenu {
  display: flex;
  gap: 4px;
  flex: 1;
}
.gmenu a {
  color: #dcdedf;
  text-transform: uppercase;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  padding: 8px 12px;
  border-bottom: 3px solid transparent;
}
.gmenu a:hover {
  color: var(--white);
  border-bottom-color: var(--link);
}
.gtools {
  display: flex;
  align-items: center;
  gap: 14px;
}
.lang {
  background: none;
  border: 0;
  color: var(--text-dim);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  padding: 6px 4px;
}
.lang:hover {
  color: var(--white);
}
.btn-install {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 2px;
  background: #5c7e10;
  background: linear-gradient(to right, var(--green-1) 5%, var(--green-2) 95%);
  color: var(--green-text);
  font-size: 12px;
  white-space: nowrap;
}
.btn-install svg {
  width: 15px;
  height: 15px;
}
.btn-install:hover {
  color: var(--white);
  background: linear-gradient(to right, #8ed629 5%, #6aa621 95%);
}

/* ---------- 页脚 ---------- */
.gfoot {
  margin-top: 64px;
  background: var(--bg-deep);
  color: var(--text-dim);
  font-size: 12px;
}
.gfoot-in {
  width: min(1040px, 100% - 32px);
  margin-inline: auto;
  padding: 28px 0 40px;
}
.gfoot-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid #363c44;
}
.gfoot-top .brand {
  font-size: 14px;
}
.gfoot-top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}
.gfoot-top nav a {
  color: var(--text-dim);
}
.gfoot-top nav a:hover {
  color: var(--white);
}
.gfoot p {
  margin: 16px 0 0;
  max-width: 820px;
  line-height: 1.7;
}

/* ---------- 窄屏 ---------- */
@media (max-width: 820px) {
  html {
    scroll-padding-top: 112px;
  }
  .gnav-in {
    height: auto;
    flex-wrap: wrap;
    gap: 4px 12px;
    padding-top: 10px;
  }
  .gtools {
    margin-left: auto;
  }
  .gmenu {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .gmenu a {
    padding: 6px 10px 8px;
    white-space: nowrap;
  }
}
@media (max-width: 420px) {
  .brand span {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}