/* ============================================================
   铁血苍穹 · 亮色暖金主题（配色取自 bg.jpg：米白 / 亮金 / 暖黄）
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
  /* 两侧留白：恢复原来的深棕黑 */
  background: #1a1208;
  color: #4a3210;
  overflow-x: hidden;
}
::selection { background: #c9841a; color: #fff8e6; }
a { text-decoration: none; color: inherit; }

.page {
  width: 1920px;
  max-width: 100%;
  margin: 0 auto;
  /* 中间内容区：亮金渐变，两侧 body 仍是深棕黑 */
  background: linear-gradient(180deg, #fdf6e3 0%, #fbe9bf 50%, #f5d99a 100%);
}
.container { width: 1920px; max-width: 100%; margin: 0 auto; }

/* ---------- Hero 主视觉（被 bg.jpg / bg.mp4 铺满，不动） ---------- */
#hero {
  position: relative;
  width: 1920px;
  max-width: 100%;
  height: 1080px;
  overflow: hidden;
}
#hero .hero-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}
#hero .hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
  opacity: 0;
  transition: opacity 1.2s ease;
}
#hero .hero-video.show { opacity: 1; }

.hero-content {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 70px;
  z-index: 4;
  display: flex;
  justify-content: center;
  gap: 40px;
}

/* ---------- CTA 按钮 ---------- */
.btn {
  display: inline-block;
  min-width: 280px;
  padding: 20px 52px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 8px;
  text-align: center;
  border-radius: 8px;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
  position: relative;
  overflow: hidden;
}
.btn:hover { transform: translateY(-4px); }

/* 金按钮：在亮底上用更深的金渐变 + 浅描边，保证浮起感 */
.btn-gold {
  color: #fff8e6;
  background: linear-gradient(180deg, #f6b93b 0%, #d98a1a 50%, #a8620a 100%);
  border: 2px solid #ffe9a8;
  box-shadow: 0 6px 18px rgba(168,98,10,.45), inset 0 0 12px rgba(255,255,255,.35);
}
.btn-gold:hover { box-shadow: 0 10px 28px rgba(168,98,10,.6); }

/* 蓝按钮：作为冷色对比保留，调深一点以适配亮底 */
.btn-blue {
  color: #eaf4ff;
  background: linear-gradient(180deg, #4a8fe0 0%, #1f56b8 50%, #0e3580 100%);
  border: 2px solid #bcd8ff;
  box-shadow: 0 6px 18px rgba(14,53,128,.45), inset 0 0 12px rgba(255,255,255,.25);
}
.btn-blue:hover { box-shadow: 0 10px 28px rgba(14,53,128,.6); }

/* ---------- 段落通用 ---------- */
.section { padding: 100px 0; position: relative; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-title {
  font-size: 52px;
  font-weight: 900;
  letter-spacing: 8px;
  /* 亮底上的标题：深棕 → 金，不再用白→金 */
  background: linear-gradient(180deg, #6b3f00 0%, #c9841a 60%, #e6a93b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: "STKaiti","KaiTi","楷体",serif;
}
.section-sub {
  margin-top: 12px;
  color: #a07020;
  letter-spacing: 3px;
  font-size: 15px;
}
.section-title::before, .section-title::after {
  content: "◆";
  color: #c9841a;
  margin: 0 18px;
  font-size: 18px;
}

/* ---------- 游戏介绍 ---------- */
#intro {
  background: linear-gradient(180deg, #fbe9bf 0%, #f5d99a 100%);
}
.intro-panel {
  max-width: 1160px;
  margin: 0 auto;
  padding: 44px 54px;
  /* 半透明白卡片，亮底上像一层磨砂 */
  background: rgba(255, 251, 235, .65);
  border: 1px solid rgba(201, 132, 26, .35);
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(168, 98, 10, .18), inset 0 0 40px rgba(255,255,255,.4);
  backdrop-filter: blur(2px);
}
.intro-block {
  padding: 22px 4px;
  border-bottom: 1px dashed rgba(201, 132, 26, .3);
}
.intro-block:last-child { border-bottom: none; }
.intro-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 12px;
}
.intro-num {
  font-family: "STKaiti","KaiTi","楷体",serif;
  font-size: 36px;
  font-weight: 900;
  line-height: 1;
  text-shadow: 0 0 14px rgba(201,132,26,.25);
}
.intro-name {
  font-family: "STKaiti","KaiTi","楷体",serif;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 3px;
  /* 深金字，亮底可读 */
  background: linear-gradient(180deg, #8a5a10 0%, #c9841a 55%, #e6a93b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
/* 序号配色：在亮底上用更深、更饱和的版本 */
.intro-block:nth-child(1) .intro-num,
.intro-block:nth-child(4) .intro-num { color: #c9841a; }
.intro-block:nth-child(2) .intro-num,
.intro-block:nth-child(5) .intro-num { color: #d35400; }
.intro-block:nth-child(3) .intro-num,
.intro-block:nth-child(6) .intro-num { color: #5a8a3a; }

.intro-block p {
  font-size: 17px;
  line-height: 2.1;
  color: #5a4020;          /* 深棕正文，亮底可读 */
  letter-spacing: .5px;
}
.intro-block p .em {
  color: #b06a10;          /* 深金橙强调 */
  font-weight: 700;
  font-style: normal;
  text-shadow: 0 0 10px rgba(255, 200, 120, .4);
}
.intro-block p strong { color: #8a5a10; }

/* ---------- 装备展示 ---------- */
#equip { background: linear-gradient(180deg, #f5d99a 0%, #fbe9bf 100%); }
.equip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: center;
}
.equip-item {
  background: rgba(255, 251, 235, .65);
  border: 1px solid rgba(201, 132, 26, .35);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.equip-item:hover {
  border-color: #c9841a;
  transform: translateY(-6px);
  box-shadow: 0 10px 24px rgba(168, 98, 10, .25);
}
.equip-item img {
  display: block;
  height: auto;
  width: auto;
  max-width: 100%;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(201, 132, 26, .35);
}
.equip-item .equip-name {
  margin-top: 14px;
  font-size: 18px;
  color: #8a5a10;
  letter-spacing: 3px;
  font-weight: 700;
}

/* ---------- 页脚 ---------- */
footer {
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid rgba(201, 132, 26, .35);
  background: #f0d9a8;
  color: #6b4a20;
  font-size: 14px;
  letter-spacing: 1px;
}
footer a { color: #8a5a10; }

/* ---------- 响应式（保留原有断点，手机端自适应） ---------- */
@media (max-width: 900px) {
  .intro-panel { padding: 32px 26px; }
}
@media (max-width: 620px) {
  .section { padding: 64px 0; }
  .hero-content { bottom: 60px; gap: 20px; flex-wrap: wrap; }
  .btn { min-width: 220px; padding: 16px 30px; font-size: 20px; }
  .intro-panel { padding: 26px 18px; }
  .intro-name { font-size: 22px; }
  .intro-num { font-size: 28px; }
  .intro-block p { font-size: 15px; }
}