* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:root {
  --page: 1760px;
}

body {
  min-width: 1760px;
  background: #050505;
  color: #f3e6c8;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

a {
  color: inherit;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 112px;
  background: linear-gradient(#1a100c, #070605 70%);
  border-bottom: 2px solid #c6a15a;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55);
}

.nav-inner {
  width: var(--page);
  height: 112px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr) 460px repeat(3, 1fr);
  align-items: center;
}

.nav a.item {
  width: 168px;
  height: 66px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #f6e4bc;
  font-size: 18px;
  letter-spacing: 1px;
  background:
    linear-gradient(#2a1a12, #100c0a);
  border: 1px solid #7a5a2c;
  box-shadow: inset 0 0 10px rgba(230, 180, 80, 0.12);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.nav a.item:hover {
  color: #fff8e8;
  border-color: #f0d48a;
  background: linear-gradient(#4a2c16, #1a100c);
  text-shadow: 0 0 10px rgba(255, 190, 70, 0.75);
}

.logo {
  width: 420px;
  height: 100px;
  margin: 0 auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(255, 140, 40, 0.35));
}

.hero-wrap {
  position: relative;
  width: var(--page);
  margin: 0 auto 10px;
  background: #000;
}

.hero {
  position: relative;
  width: calc(1024px * 1.5);
  margin: 0 auto;
}

.hero-bg {
  display: block;
  width: calc(1024px * 1.5);
  height: auto;
}

.flame-layer,
.flames {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.flame-layer span {
  position: absolute;
  bottom: 4%;
  width: 54px;
  height: 120px;
  border-radius: 50% 50% 42% 42%;
  background: radial-gradient(ellipse at 50% 82%, rgba(255, 214, 120, 0.8), rgba(255, 90, 16, 0.42) 40%, rgba(180, 20, 0, 0) 72%);
  filter: blur(1.2px);
  mix-blend-mode: screen;
  transform-origin: 50% 100%;
  animation: flame-lick 1.15s ease-in-out infinite;
}

.flame-layer span:nth-child(1) { left: 8%; height: 150px; width: 64px; animation-duration: 1.05s; }
.flame-layer span:nth-child(2) { left: 20%; height: 100px; animation-duration: 1.3s; animation-delay: -0.35s; }
.flame-layer span:nth-child(3) { left: 36%; height: 86px; width: 42px; animation-duration: 1.2s; animation-delay: -0.6s; }
.flame-layer span:nth-child(4) { right: 34%; height: 96px; animation-duration: 1.25s; animation-delay: -0.2s; }
.flame-layer span:nth-child(5) { right: 18%; height: 130px; animation-duration: 1.1s; animation-delay: -0.5s; }
.flame-layer span:nth-child(6) { right: 6%; height: 160px; width: 68px; animation-duration: 0.95s; animation-delay: -0.15s; }

@keyframes flame-lick {
  0%, 100% { transform: translateY(6px) scaleX(1) scaleY(0.82); opacity: 0.4; }
  50% { transform: translateY(-16px) scaleX(0.82) scaleY(1.12); opacity: 0.85; }
}

.season {
  position: absolute;
  z-index: 2;
  right: 21.4%;
  top: 15.5%;
  width: 76px;
  padding: 18px 0 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  color: #ffe7a8;
  background: linear-gradient(#e23a2e, #8d120e 72%, #4e0808);
  border: 2px solid #f3d48a;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.45);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 50% 100%, 0 86%);
}

.season span {
  display: block;
  width: 100%;
  text-align: center;
}

.cta {
  position: absolute;
  z-index: 2;
  left: 0;
  right: 0;
  bottom: 4.5%;
  display: flex;
  justify-content: center;
  gap: 140px;
}

.cta a {
  width: 280px;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 28px;
  letter-spacing: 4px;
  color: #ffe9bc;
  background: linear-gradient(#9a1c14, #4a0c0a);
  border: 1px solid #e7c56a;
  box-shadow: inset 0 0 14px rgba(255, 200, 90, 0.28), 0 8px 16px rgba(0, 0, 0, 0.45);
  transition: filter 0.2s, transform 0.2s;
}

.cta a.pay {
  background: linear-gradient(#c4963a, #6a4512);
  color: #fff8e8;
}

.cta a:hover {
  filter: brightness(1.12);
  transform: translateY(-2px);
}

.stage {
  position: relative;
  width: var(--page);
  margin: 36px auto 10px;
  padding: 28px 0 10px;
}

.stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(120, 24, 16, 0.35), transparent 70%);
  pointer-events: none;
}

.sec-title {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 22px;
}

.sec-title h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 8px;
  color: #f0d48a;
  text-shadow: 0 0 12px rgba(255, 140, 40, 0.35);
}

.sec-title i {
  width: 180px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #c6a15a, transparent);
}

.middle {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto;
  border: 1px solid #a6843e;
  box-shadow: 0 0 24px rgba(160, 40, 16, 0.28);
}

.equip {
  width: var(--page);
  margin: 10px auto 40px;
  padding-bottom: 30px;
}

.equip-row {
  display: flex;
  justify-content: center;
  gap: 56px;
  margin-top: 32px;
}

.equip-row img {
  width: 460px;
  height: auto;
  aspect-ratio: 268 / 350;
  border: 1px solid #8d6a34;
  box-shadow: 0 0 16px rgba(180, 70, 20, 0.22);
  background: #1a100e;
}

.footer {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #b9a27a;
  letter-spacing: 3px;
  border-top: 1px solid #3a2a16;
  background: #070605;
}

.side {
  position: fixed;
  top: 62%;
  right: 0;
  z-index: 40;
  width: 118px;
  padding: 16px 10px 12px;
  background: linear-gradient(#1c120e, #0c0908);
  border: 1px solid #a6843e;
  border-right: none;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s ease;
}

.side.is-hidden {
  transform: translateX(118px);
}

.side a {
  display: block;
  height: 42px;
  line-height: 42px;
  margin-bottom: 8px;
  text-align: center;
  text-decoration: none;
  color: #f3e2b8;
  border: 1px solid #6e5428;
  background: #140e0c;
}

.side a:hover {
  color: #fff4d2;
  border-color: #e6c36a;
}

.music {
  position: fixed;
  top: 126px;
  left: 16px;
  z-index: 45;
  width: 54px;
  height: 78px;
  padding: 0 0 14px;
  border: 2px solid #f3d48a;
  border-radius: 0;
  color: #ffe7a8;
  font-size: 26px;
  line-height: 64px;
  text-align: center;
  cursor: pointer;
  background: linear-gradient(#e23a2e, #8d120e 72%, #4e0808);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.45);
  clip-path: polygon(0 0, 100% 0, 100% 82%, 50% 100%, 0 82%);
}

.music span {
  display: inline-block;
}

.music.is-playing span {
  animation: music-spin 2.8s linear infinite;
}

@keyframes music-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.side-toggle {
  position: absolute;
  top: 18px;
  left: -28px;
  width: 28px;
  height: 84px;
  border: 1px solid #a6843e;
  border-right: none;
  background: #8d120e;
  color: #ffe7a8;
  cursor: pointer;
  writing-mode: vertical-rl;
  letter-spacing: 2px;
}