/* ============== Biekka Games shared styles ============== */
:root {
  --brown: #56402F;
  --brown-2: #3e2c1f;
  --tan:   #C79C7B;
  --cream: #E4E1C9;
  --sage:  #E9EBE5;
  --ink:   #3B2C20;
  --paper: #F7F5EA;
  --shadow-soft: 0 20px 50px -20px rgba(86,64,47,.28);
  --shadow-lift: 0 30px 80px -30px rgba(86,64,47,.4);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
/* 自托管字体 */
@font-face {
  font-family: 'Space Grotesk';
  src: url('fonts/SpaceGrotesk.ttf') format('truetype-variations'),
       url('fonts/SpaceGrotesk.ttf') format('truetype');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('fonts/PlusJakartaSans.ttf') format('truetype-variations'),
       url('fonts/PlusJakartaSans.ttf') format('truetype');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('fonts/PlusJakartaSans-Italic.ttf') format('truetype-variations'),
       url('fonts/PlusJakartaSans-Italic.ttf') format('truetype');
  font-weight: 200 800;
  font-style: italic;
  font-display: swap;
}

/* 字体变量：中英分层，标题/正文分层 */
:root {
  --font-heading: 'Space Grotesk', '仓耳与墨W04', 'TsangerYuMoW04', 'Source Han Sans SC', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-body: 'Plus Jakarta Sans', 'Source Han Sans SC', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
}
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
}
[data-lang="cn"] .lang-en { display: none !important; }
[data-lang="en"] .lang-cn { display: none !important; }
button, input, textarea, select { font-family: inherit; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ============== Navbar ============== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: rgba(247,245,234,.32);
  backdrop-filter: blur(10px) saturate(1.15);
  -webkit-backdrop-filter: blur(10px) saturate(1.15);
  border-bottom: 1px solid rgba(86,64,47,.06);
  transition: all .25s ease;
}
.nav.scrolled {
  padding: 12px 44px;
  background: rgba(247,245,234,.55);
  box-shadow: 0 6px 20px -8px rgba(86,64,47,.15);
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  transition: opacity .2s;
}
.nav-brand:hover { opacity: .82; }
.nav-brand img {
  width: 42px; height: 42px;
  border-radius: 10px;
  object-fit: contain;
  background: var(--paper);
  padding: 4px;
  box-shadow: 0 4px 12px rgba(86,64,47,.18);
}
.nav-brand .name {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 22px;
  color: var(--brown);
  letter-spacing: .04em;
}
[data-lang="cn"] .nav-brand .name {
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: .08em;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  padding: 9px 16px;
  color: var(--brown);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: .02em;
  opacity: .85;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: opacity .2s;
  cursor: pointer;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 4px;
  width: 0; height: 1.5px;
  background: var(--tan);
  border-radius: 2px;
  transition: all .25s ease;
  transform: translateX(-50%);
}
.nav-link:hover, .nav-link.active { opacity: 1; }
.nav-link:hover::after, .nav-link.active::after { width: calc(100% - 32px); }
.nav-link.has-sub > i { font-size: 10px; opacity: .55; margin-left: 2px; }

.nav-lang {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  background: rgba(86,64,47,.08);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .06em;
}
.nav-lang button {
  border: none;
  background: transparent;
  padding: 6px 14px;
  border-radius: 999px;
  color: var(--brown);
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  transition: all .2s;
  opacity: .65;
}
.nav-lang button:hover { opacity: 1; }
.nav-lang button.active {
  background: var(--brown);
  color: var(--paper);
  opacity: 1;
  box-shadow: 0 4px 10px -4px rgba(86,64,47,.4);
}

.nav-sub-wrap { position: relative; }
.nav-sub {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  background: var(--paper);
  border: 1px solid rgba(86,64,47,.12);
  border-radius: 16px;
  padding: 8px;
  width: max-content;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 20px 40px -14px rgba(86,64,47,.35);
  opacity: 0;
  visibility: hidden;
  transition: all .2s;
  z-index: 20;
}
.nav-sub::before {
  content: "";
  position: absolute;
  top: -6px; left: 50%;
  width: 12px; height: 12px;
  background: var(--paper);
  border-top: 1px solid rgba(86,64,47,.12);
  border-left: 1px solid rgba(86,64,47,.12);
  transform: translateX(-50%) rotate(45deg);
}
.nav-sub-wrap:hover .nav-sub {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-sub a {
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--brown);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  transition: all .15s;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-sub a:hover { background: var(--cream); }
.nav-sub a .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--tan);
  flex: 0 0 auto;
}

/* ============== Page placeholder (Games / Publish / About) ============== */
.page-placeholder {
  min-height: calc(100vh - 88px);
  padding: 160px 44px 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 85% 10%, rgba(199,156,123,.22), transparent 55%),
    radial-gradient(ellipse at 8% 92%, rgba(86,64,47,.09), transparent 55%),
    var(--paper);
}
.pp-inner {
  max-width: 720px;
  text-align: center;
}
.pp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Caveat', cursive;
  color: var(--tan);
  font-size: 22px;
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.pp-eyebrow::before,
.pp-eyebrow::after {
  content: "";
  display: inline-block;
  width: 30px; height: 2px;
  background: var(--tan);
  border-radius: 2px;
}
.pp-inner h1 {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: clamp(44px, 5vw, 68px);
  color: var(--brown);
  line-height: 1.05;
  letter-spacing: -.01em;
  margin: 0 0 20px;
}
.pp-inner h1 em { font-style: italic; color: var(--tan); font-weight: 400; }
.pp-inner p {
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink);
  opacity: .75;
  margin: 0 0 34px;
}
.pp-back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 999px;
  background: var(--brown);
  color: var(--paper);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .06em;
  transition: all .25s;
}
.pp-back:hover {
  background: var(--tan);
  color: var(--brown-2);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px -10px rgba(199,156,123,.6);
}
.pp-back i { transition: transform .25s; }
.pp-back:hover i { transform: translateX(-4px); }

/* ============== Footer ============== */
footer {
  padding: 60px 44px 40px;
  background: linear-gradient(135deg, var(--brown) 0%, var(--brown-2) 100%);
  color: var(--paper);
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 60px;
}
/* 社交媒体（居中偏左，单行） */
.socials {
  order: 1;
  display: flex;
  flex-wrap: nowrap;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
  flex: 0 0 auto;
}
/* 中间竖线分隔 */
.footer-divider {
  order: 2;
  width: 1px;
  align-self: stretch;
  min-height: 130px;
  background: linear-gradient(180deg, transparent 0%, rgba(247,245,234,.2) 20%, rgba(247,245,234,.28) 50%, rgba(247,245,234,.2) 80%, transparent 100%);
  flex: 0 0 auto;
}
/* 可选链接（如媒体材料包） */
.footer-inner > .footer-links {
  order: 3;
  flex: 0 0 auto;
  display: flex;
  justify-content: flex-start;
}
/* 第二条竖线（放在 links 和 contacts 之间） */
.footer-inner > .footer-divider.divider-2 {
  order: 4;
}
/* 邮箱（居中偏右，上下两个 + 公共邮箱标题） */
.contacts {
  order: 5;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  flex: 0 0 auto;
  position: relative;
  padding-top: 4px;
}
[data-lang="cn"] .contacts::before { content: "公 共 邮 箱"; }
[data-lang="en"] .contacts::before { content: "Public Emails"; }
.contacts::before {
  display: block;
  font-family: var(--font-heading);
  font-size: 14px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--tan);
  margin-bottom: 10px;
}
.contact-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}
.contact-item .contact-label {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(247,245,234,.65);
}
[data-lang="cn"] .contact-item .contact-label {
  font-family: var(--font-body);
  letter-spacing: .18em;
  text-transform: none;
  font-size: 14px;
}
.contact-item a {
  color: var(--paper);
  font-size: 16.5px;
  transition: color .2s;
}
.contact-item a:hover { color: var(--tan); }
.social {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(247,245,234,.08);
  border: 1px solid rgba(247,245,234,.16);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--paper);
  font-size: 18px;
  transition: all .25s;
  position: relative;
}
.social:hover {
  background: var(--tan);
  color: var(--brown-2);
  border-color: var(--tan);
  transform: translateY(-3px);
  box-shadow: 0 8px 18px -6px rgba(199,156,123,.6);
}
.social .txt {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .04em;
}
.social[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--paper);
  color: var(--brown);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
  letter-spacing: .04em;
}
.social:hover::after { opacity: 1; }

/* 汉堡按钮（默认桌面隐藏） */
.nav-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
  border-radius: 12px;
  transition: background .2s;
  margin-left: auto;
}
.nav-burger:hover { background: rgba(86,64,47,.08); }
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--brown);
  border-radius: 2px;
  position: relative;
  transition: transform .3s, opacity .3s;
}
.nav-burger span::before,
.nav-burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--brown);
  border-radius: 2px;
  transition: transform .3s;
}
.nav-burger span::before { top: -7px; }
.nav-burger span::after  { top: 7px; }
.nav-open .nav-burger span { background: transparent; }
.nav-open .nav-burger span::before { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-burger span::after  { transform: translateY(-7px) rotate(-45deg); }

/* ============== Responsive ============== */
@media (max-width: 960px) {
  .nav { padding: 14px 20px; }
  .nav-burger { display: inline-flex; }
  .nav-menu {
    position: fixed;
    top: 78px;
    left: 0; right: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 18px 20px 24px;
    box-shadow: 0 20px 40px -20px rgba(86,64,47,.35);
    border-bottom: 1px solid rgba(86,64,47,.12);
    transform: translateY(-24px);
    opacity: 0;
    visibility: hidden;
    transition: all .3s ease;
    max-height: calc(100vh - 78px);
    overflow-y: auto;
  }
  .nav-open .nav-menu {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-link {
    padding: 14px 16px;
    font-size: 17px;
    border-radius: 12px;
    justify-content: flex-start;
    width: 100%;
  }
  .nav-link:hover { background: var(--cream); opacity: 1; }
  .nav-link::after { display: none; }
  .nav-sub-wrap { position: relative; }
  .nav-sub {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 4px 0 4px 20px;
    opacity: 1;
    visibility: visible;
    width: auto;
  }
  .nav-sub::before { display: none; }
  .nav-sub a {
    padding: 10px 12px;
    font-size: 15px;
    color: var(--brown);
    opacity: .8;
  }
  .nav-lang {
    align-self: flex-start;
    margin-top: 8px;
  }

  .page-placeholder { padding: 130px 20px 80px; }

  /* Footer 手机端：全部纵向居中 */
  footer { padding: 50px 20px 34px; }
  .footer-inner {
    flex-direction: column;
    align-items: center;
    gap: 26px;
    text-align: center;
  }
  .socials {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    max-width: 100%;
  }
  .social { width: 42px; height: 42px; font-size: 16px; }
  .footer-divider {
    width: 60%;
    min-height: 1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(247,245,234,.28), transparent);
  }
  .contacts {
    flex-direction: column;
    gap: 18px;
    align-items: center;
    padding-top: 0;
  }
  .contacts::before {
    text-align: center;
    width: 100%;
  }
  .contact-item {
    align-items: center;
  }
  .footer-inner > .footer-links {
    order: 3;
    justify-content: center;
  }
}

/* ============== Beian（备案信息） ============== */
.beian {
  max-width: 1400px;
  margin: 28px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(247, 245, 234, .12);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
  align-items: center;
  font-size: 13px;
  letter-spacing: .04em;
  color: rgba(247, 245, 234, .6);
}
.beian a {
  color: inherit;
  text-decoration: none;
  transition: color .2s;
}
.beian a:hover { color: var(--paper); }
.beian .beian-sep {
  color: rgba(247, 245, 234, .3);
  user-select: none;
}
.beian .beian-gongan {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.beian .beian-gongan img {
  width: 14px;
  height: 14px;
  display: inline-block;
  vertical-align: middle;
}
@media (max-width: 720px) {
  .beian { font-size: 12px; gap: 6px 14px; }
  .beian .beian-gongan img { width: 12px; height: 12px; }
}