:root {
  --navy: #061322;
  --gold: #e3b966;
  --gold-bright: #ffe2a1;
  --paper: #fff7ea;
  --shadow: rgba(0, 0, 0, 0.46);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--paper);
  font-family: "STSong", "Songti SC", "Noto Serif SC", "Microsoft YaHei", serif;
  background: var(--navy);
}

img {
  display: block;
  max-width: 100%;
}

.sunrise-page,
.lujiazui-hero {
  min-height: 100vh;
}

.lujiazui-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: 100vh;
  padding: clamp(1.5rem, 4vw, 4rem);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(4, 11, 20, 0.2) 0%, rgba(4, 11, 20, 0.38) 58%, rgba(4, 11, 20, 0.72) 100%),
    linear-gradient(90deg, rgba(3, 10, 18, 0.64) 0%, rgba(3, 10, 18, 0.16) 46%, rgba(3, 10, 18, 0.54) 100%),
    url("requirement/bund-sunrise-hero.png") center / cover no-repeat;
}

.lujiazui-hero::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    radial-gradient(circle at 54% 44%, rgba(255, 224, 153, 0.42), transparent 19rem),
    linear-gradient(104deg, transparent 10%, rgba(255, 224, 153, 0.2) 39%, rgba(255, 188, 91, 0.12) 52%, transparent 72%),
    linear-gradient(73deg, transparent 23%, rgba(255, 165, 91, 0.18) 47%, transparent 76%);
  mix-blend-mode: screen;
}

.lujiazui-hero::after {
  position: absolute;
  inset: 0;
  z-index: 3;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 0%, rgba(2, 8, 16, 0.18) 100%),
    radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.28) 78%);
}

.hero-copy {
  position: relative;
  z-index: 5;
  align-self: center;
  justify-self: center;
  width: min(92vw, 980px);
  margin-top: -2vh;
  text-align: center;
  text-shadow:
    0 0.18rem 0.7rem rgba(0, 0, 0, 0.36),
    0 1.6rem 3rem rgba(0, 0, 0, 0.42);
  animation: copy-rise 1200ms ease-out both;
}

.center-logo {
  position: relative;
  width: min(520px, 82vw);
  margin: 0 auto;
}

.center-logo::before {
  position: absolute;
  inset: -44% -36%;
  z-index: -1;
  content: "";
  background:
    radial-gradient(ellipse at 52% 48%, rgba(255, 235, 178, 0.52) 0%, rgba(232, 177, 89, 0.22) 28%, transparent 55%),
    linear-gradient(101deg, transparent 0%, rgba(255, 229, 165, 0.08) 22%, rgba(255, 209, 119, 0.32) 49%, rgba(255, 176, 92, 0.12) 68%, transparent 100%);
  filter: blur(18px);
  transform: skewX(-10deg);
}

.center-logo img {
  position: relative;
  z-index: 2;
  width: 100%;
  filter:
    saturate(1.08)
    sepia(0.08)
    drop-shadow(0 0.18rem 0.45rem rgba(255, 218, 139, 0.22))
    drop-shadow(0 0 1.2rem rgba(255, 192, 87, 0.14))
    drop-shadow(0 1.6rem 3rem rgba(0, 0, 0, 0.34));
}

.hero-copy p {
  margin: clamp(1rem, 2vw, 1.6rem) 0 0;
  color: var(--gold-bright);
  font-size: clamp(1.5rem, 3.4vw, 3.1rem);
  font-weight: 700;
  letter-spacing: 0.2em;
}

@keyframes copy-rise {
  from {
    opacity: 0;
    transform: translateY(2.2rem);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  body {
    overflow: auto;
  }

  .lujiazui-hero {
    background-position: center;
  }

  .hero-copy {
    margin-top: 6vh;
  }

  .center-logo {
    width: min(360px, 86vw);
  }

  .hero-copy p {
    font-size: clamp(1.25rem, 6vw, 2rem);
    letter-spacing: 0.1em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy {
    animation: none;
  }
}