/* BitKing 官网样式 —— 配色与面板取自游戏内 UI（Pal / Slab：深蓝底、金边、纹章红、稀有度四色） */

:root {
  --ink:        #08102C;   /* 最深：描边与页脚 */
  --ground:     #0F1A44;   /* 页面底色（游戏 Ink2 / Black） */
  --panel-top:  #26429C;   /* 面板渐变上（游戏 Slot） */
  --panel-bot:  #1C2E6A;   /* 面板渐变下（游戏 D1） */
  --panel-flat: #16245E;   /* 导航条 / 图标格 */
  --rim:        #E0B24A;   /* 金边（游戏 Slab Rim） */
  --gold:       #FFD04A;
  --gold-soft:  #FFE08A;   /* 标题金（游戏 HeadText） */
  --red:        #C4463E;   /* 纹章红 */
  --red-hi:     #E0564A;
  --red-ink:    #3A0E0E;
  --text:       #DCE4FA;
  --muted:      #AEB8D6;   /* 游戏 DimText */
  --line:       #34509E;
  --common:     #9AA8C0;
  --rare:       #4FA3FF;
  --epic:       #B06CFF;
  --legend:     #FF9A2E;
  --grn:        #8BE86A;

  --display: "Jacquard 12", "Georgia", serif;
  --label:   "Silkscreen", ui-monospace, "SFMono-Regular", monospace;
  --body:    "Alegreya", "Iowan Old Style", Georgia, serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background:
    radial-gradient(120% 80% at 50% -10%, #1B2C66 0%, rgba(15, 26, 68, 0) 60%),
    var(--ground);
  color: var(--text);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding-inline: 20px;
}

a { color: var(--gold); text-decoration-color: rgba(255, 208, 74, 0.4); text-underline-offset: 3px; }
a:hover { color: var(--gold-soft); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

h1, h2, h3 { text-wrap: balance; margin: 0; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  background: linear-gradient(var(--panel-flat), #101C4C);
  border-bottom: 2px solid var(--ink);
  box-shadow: 0 1px 0 rgba(224, 178, 74, 0.35);
}
.topbar .wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-block: 10px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand svg { width: 28px; height: 28px; display: block; }
.brand span {
  font-family: var(--display);
  font-size: 26px;
  letter-spacing: 0.02em;
  color: var(--gold-soft);
  line-height: 1;
}
.topnav { margin-left: auto; display: flex; gap: 18px; font-family: var(--label); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.topnav a { color: var(--muted); text-decoration: none; }
.topnav a:hover { color: var(--gold-soft); }

/* ---------- 面板（游戏里的 Slab：深色描边 + 金边 + 上下渐变） ---------- */
.panel {
  background: linear-gradient(var(--panel-top), var(--panel-bot));
  border: 2px solid var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--rim), 0 6px 0 rgba(8, 16, 44, 0.55);
  border-radius: 10px;
  padding: 22px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--label);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #FFF1CB;
  background: linear-gradient(var(--red-hi), var(--red));
  border: 1.5px solid var(--red-ink);
  border-radius: 99px;
  padding: 5px 14px;
}

section { padding-block: 56px; }
section > .wrap > h2 {
  font-family: var(--display);
  font-size: clamp(34px, 6vw, 52px);
  color: var(--gold-soft);
  margin-block: 18px 6px;
  letter-spacing: 0.01em;
}
.lede { color: var(--muted); max-width: 62ch; margin-block: 0 26px; }

/* ---------- 首屏 ---------- */
.hero { padding-block: 64px 44px; }
.hero .wrap { display: grid; gap: 34px; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); align-items: center; }
.hero .icon-card { justify-self: center; }
.hero h1 {
  font-family: var(--display);
  font-size: clamp(52px, 11vw, 104px);
  line-height: 0.95;
  color: var(--gold);
  text-shadow: 0 4px 0 var(--ink);
  margin-block: 16px 14px;
}
.hero p.tag { font-size: clamp(20px, 3.4vw, 27px); color: #F2F5FF; margin: 0 0 22px; max-width: 34ch; line-height: 1.35; }
.hero .facts { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.fact {
  font-family: var(--label);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  background: rgba(8, 16, 44, 0.45);
  border: 1.5px solid var(--line);
  border-radius: 6px;
  padding: 7px 10px;
}

.store {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(var(--red-hi), var(--red));
  border: 2px solid var(--red-ink);
  box-shadow: inset 0 0 0 1.5px rgba(255, 224, 138, 0.55), 0 5px 0 rgba(8, 16, 44, 0.6);
  border-radius: 12px;
  padding: 14px 22px;
  color: #FFF4D8;
  text-decoration: none;
}
.store strong { font-family: var(--display); font-size: 26px; line-height: 1; }
.store small { font-family: var(--label); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.85; display: block; }
.store:hover { color: #fff; transform: translateY(-1px); }
.store-note { font-family: var(--label); font-size: 10px; letter-spacing: 0.06em; color: var(--muted); margin-top: 14px; text-transform: uppercase; }

.icon-card { display: grid; place-items: center; padding: 26px; }
.icon-card img {
  width: min(300px, 74vw);
  height: auto;
  display: block;
  border-radius: 22%;
  border: 3px solid var(--ink);
  box-shadow: 0 0 0 2px var(--rim), 0 10px 0 rgba(8, 16, 44, 0.5);
}

/* ---------- 特性 ---------- */
.feature-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.feature h3 {
  font-family: var(--display);
  font-size: 27px;
  color: var(--gold-soft);
  margin-bottom: 8px;
  line-height: 1.15;
}
.feature p { margin: 0; color: #E4EAFF; }
.feature .stat {
  font-family: var(--label);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-top: 14px;
}

/* ---------- 兵种名册 ---------- */
.roster { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); }
.troop {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  background: rgba(8, 16, 44, 0.4);
  border: 1.5px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
}
.troop i { display: block; width: 14px; height: 14px; border-radius: 3px; margin-top: 5px; border: 1.5px solid var(--ink); }
.troop b { display: block; font-weight: 700; font-size: 17px; color: #F2F5FF; }
.troop span { display: block; font-family: var(--label); font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 2px; }
.legend-key { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 18px; font-family: var(--label); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.legend-key span { display: inline-flex; align-items: center; gap: 6px; }
.legend-key i { width: 11px; height: 11px; border-radius: 3px; border: 1.5px solid var(--ink); display: block; }

/* ---------- 明牌事实 ---------- */
.plain { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.plain div {
  border-left: 3px solid var(--grn);
  padding: 4px 0 4px 14px;
}
.plain b { display: block; font-family: var(--label); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--grn); }
.plain p { margin: 4px 0 0; color: #E4EAFF; font-size: 17px; }

/* ---------- 页脚 ---------- */
footer {
  background: var(--ink);
  border-top: 2px solid rgba(224, 178, 74, 0.35);
  padding-block: 34px calc(34px + env(safe-area-inset-bottom, 0px));
  color: var(--muted);
  font-size: 16px;
}
footer .cols { display: flex; flex-wrap: wrap; gap: 22px 40px; align-items: baseline; }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
footer .small { font-family: var(--label); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; margin-top: 18px; display: block; }

/* ---------- 条款 / 隐私正文页 ---------- */
.doc { padding-block: 44px 20px; }
.doc h1 {
  font-family: var(--display);
  font-size: clamp(40px, 8vw, 64px);
  color: var(--gold);
  margin-bottom: 6px;
}
.doc .updated { font-family: var(--label); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.doc article { max-width: 68ch; }
.doc h2 {
  font-family: var(--display);
  font-size: 30px;
  color: var(--gold-soft);
  margin-block: 34px 8px;
}
.doc p, .doc li { color: #E4EAFF; }
.doc ul { padding-left: 20px; }
.doc li { margin-bottom: 6px; }

@media (max-width: 760px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .icon-card { order: -1; }
  body { font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}