/* ============================================================
 * 萌战天下官网 · 首页专属样式（Hero / 玩法 / 视频 / 画廊）
 * ============================================================ */

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
/* 关键首屏图用真实 <img>（<picture> 里放 WebP，老浏览器回退 JPG）——
 * 以前写成 CSS background，图片要等 CSS 下载并解析完才被发现，
 * 现在能被预扫描器提前发现，配合 <link rel="preload"> 直接进入 LCP 关键路径。 */
.hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
/* 左侧暗叠渐变，保证文案可读（与设计稿双层 fills 一致） */
.hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15,13,11,.92) 0%, rgba(15,13,11,.72) 38%, rgba(15,13,11,.15) 75%, rgba(15,13,11,.35) 100%),
              linear-gradient(0deg, var(--bg) 0%, transparent 26%);
}
.hero-inner { position: relative; z-index: 1; width: min(var(--w-page), calc(100% - 48px)); margin: 0 auto; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(194,47,31,.85);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 2px;
  border-radius: 999px;
  padding: 7px 20px;
  margin-bottom: 22px;
}
.hero-title {
  font-family: var(--font-title);
  font-weight: 400;
  font-size: 76px;
  line-height: 1.18;
  letter-spacing: 5px;
  color: var(--gold);
  text-shadow: 0 4px 24px rgba(0,0,0,.6);
}
.hero-sub {
  margin-top: 16px;
  font-size: 19px;
  color: var(--text);
  letter-spacing: 1px;
  text-shadow: 0 2px 12px rgba(0,0,0,.8);
}
.hero-sub em { font-style: normal; color: var(--gold); font-weight: 700; }
.hero-chips { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-chip {
  border: 1px solid rgba(232,194,104,.55);
  color: var(--gold);
  font-size: 15px;
  letter-spacing: 2px;
  border-radius: 999px;
  padding: 6px 20px;
  background: rgba(15,13,11,.45);
  backdrop-filter: blur(4px);
}
.hero-actions { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-meta { margin-top: 16px; font-size: 14px; color: var(--text-sub); letter-spacing: 1px; text-shadow: 0 1px 8px rgba(0,0,0,.8); }

/* ---------- 四大玩法 ---------- */
.sec-gameplay { padding: 96px 0; }
.gameplay-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.game-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 26px;
  text-align: center;
  transition: transform .2s ease, border-color .2s ease;
}
.game-card:hover { transform: translateY(-6px); border-color: rgba(232,194,104,.45); }
.game-icon {
  width: 76px; height: 76px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, rgba(232,194,104,.18), rgba(232,194,104,.04));
  border: 1px solid rgba(232,194,104,.4);
}
.game-icon svg { width: 38px; height: 38px; fill: var(--gold); }
.game-card h3 {
  font-family: var(--font-title);
  font-weight: 400;
  font-size: 28px;
  color: var(--gold);
  letter-spacing: 3px;
  margin-bottom: 10px;
}
.game-card p { font-size: 14px; color: var(--text-sub); }

/* ---------- 视频 + 画廊 ---------- */
.sec-gallery { padding: 96px 0; background: linear-gradient(180deg, var(--bg) 0%, #130F0B 100%); }
.video-block {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 9;
  max-height: 620px;
  background: #000;
}
.video-block video { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-cover {
  position: absolute;
  inset: 0;
  cursor: pointer;
  overflow: hidden;
}
.video-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.video-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(15,13,11,.1) 0%, rgba(15,13,11,.65) 100%);
}
.video-play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 92px; height: 92px;
  border-radius: 50%;
  background: rgba(232,194,104,.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform .2s ease;
  box-shadow: 0 0 0 14px rgba(232,194,104,.18), 0 10px 40px rgba(0,0,0,.5);
}
.video-block:hover .video-play { transform: translate(-50%, -50%) scale(1.08); }
.video-play svg { width: 36px; height: 36px; fill: #0F0D0B; margin-left: 5px; }
.video-label {
  position: absolute;
  left: 24px; bottom: 20px;
  z-index: 2;
  font-size: 15px;
  color: var(--text);
  letter-spacing: 2px;
  text-shadow: 0 1px 8px rgba(0,0,0,.8);
}
.video-block.playing .video-cover { display: none; }

.gallery-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 190px;
  gap: 16px;
}
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  position: relative;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gi-wide { grid-column: span 3; }
.gi-mid { grid-column: span 2; }
.gi-tall { grid-row: span 2; }

/* ---------- 礼包/开服预览区（复用 common 组件，仅加间距） ---------- */
.sec-gifts { padding: 96px 0; }
.gift-preview-card {
  background: linear-gradient(135deg, rgba(194,47,31,.2), rgba(232,194,104,.08)), var(--bg-card);
  border: 1px solid rgba(232,194,104,.4);
  border-radius: var(--radius);
  padding: 38px 42px;
  position: relative;
  overflow: hidden;
}
.sec-servers { padding: 96px 0; background: linear-gradient(180deg, var(--bg) 0%, #130F0B 100%); }
/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-title { font-size: 52px; }
  .gameplay-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; }
  .gi-wide, .gi-mid { grid-column: span 2; }
  .gi-tall { grid-row: span 1; }
}
@media (max-width: 560px) {
  .hero-title { font-size: 42px; letter-spacing: 3px; }
  .gameplay-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
}