:root {
  color-scheme: dark;
  --bg: #151719;
  --panel: #242a32;
  --panel-2: #303844;
  --line: rgba(255, 255, 255, 0.13);
  --text: #f7f1e5;
  --muted: #b9c2cc;
  --gold: #f0c86a;
  --red: #f05d55;
  --blue: #59b6ff;
  --green: #69d08c;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(circle at 18% 0%, rgba(240, 200, 106, 0.2), transparent 30%),
    radial-gradient(circle at 82% 8%, rgba(89, 182, 255, 0.18), transparent 34%),
    linear-gradient(135deg, #1a1d22, #111317);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

.portal {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 16px;
}

.hero {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(36, 42, 50, 0.94);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
}

.hero strong {
  display: block;
  color: var(--gold);
  font-size: clamp(32px, 6vw, 54px);
  line-height: 1;
}

.hero span,
.section-title span,
.game-card span,
.banner p {
  color: var(--muted);
}

.hero span {
  display: block;
  margin-top: 8px;
}

.hero nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.hero a,
.play-main {
  min-height: 38px;
  display: inline-grid;
  place-items: center;
  padding: 0 14px;
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
}

.banner {
  position: relative;
  min-height: 230px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 430px) auto;
  align-items: end;
  gap: 18px;
  margin-top: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(15, 17, 20, 0.86), rgba(15, 17, 20, 0.28)),
    repeating-linear-gradient(135deg, rgba(240, 200, 106, 0.2) 0 12px, rgba(89, 182, 255, 0.12) 12px 24px),
    #2b3440;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.banner span {
  color: var(--gold);
  font-weight: 900;
}

.banner h1 {
  margin: 6px 0 8px;
  font-size: clamp(34px, 7vw, 68px);
  line-height: 1;
}

.banner p {
  max-width: 560px;
  margin: 0;
  line-height: 1.6;
}

.play-main {
  position: relative;
  z-index: 2;
  height: 50px;
  min-width: 138px;
  background: var(--gold);
  color: #171717;
}

.banner-copy {
  position: relative;
  z-index: 2;
}

.birds-banner {
  background:
    linear-gradient(90deg, rgba(15, 17, 20, 0.9), rgba(15, 17, 20, 0.36) 48%, rgba(15, 17, 20, 0.12)),
    linear-gradient(180deg, #78bee2, #cde9c7 58%, #5e9850 59%, #4f8648),
    #2b3440;
}

.birds-cover {
  position: relative;
  z-index: 1;
  height: 205px;
  min-width: 300px;
  align-self: stretch;
  overflow: hidden;
}

.sun {
  position: absolute;
  top: 18px;
  right: 62px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #ffd76f;
  box-shadow: 0 0 28px rgba(255, 215, 111, 0.42);
}

.hill {
  position: absolute;
  bottom: 0;
  width: 190px;
  height: 120px;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  background: #3f743e;
}

.hill-a {
  left: 16px;
}

.hill-b {
  right: 6px;
  background: #4f8b45;
}

.slingshot {
  position: absolute;
  left: 34px;
  bottom: 34px;
  width: 46px;
  height: 96px;
}

.slingshot::before,
.slingshot::after {
  content: "";
  position: absolute;
  bottom: 0;
  width: 11px;
  height: 90px;
  border-radius: 999px;
  background: #693b22;
  transform-origin: bottom;
}

.slingshot::before {
  left: 9px;
  transform: rotate(8deg);
}

.slingshot::after {
  right: 9px;
  transform: rotate(-8deg);
}

.red-bird {
  position: absolute;
  left: 78px;
  bottom: 92px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #e9493f;
  box-shadow: inset -8px -8px 0 rgba(0, 0, 0, 0.12);
}

.red-bird::before,
.red-bird::after {
  content: "";
  position: absolute;
  top: -11px;
  width: 18px;
  height: 8px;
  border-radius: 999px;
  background: #5a1c1c;
}

.red-bird::before {
  left: 12px;
  transform: rotate(-34deg);
}

.red-bird::after {
  left: 24px;
  transform: rotate(-28deg);
}

.red-bird .eye {
  position: absolute;
  top: 18px;
  right: 14px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #fff7e8;
}

.red-bird .eye::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 6px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #191919;
}

.red-bird .beak {
  position: absolute;
  top: 25px;
  right: -22px;
  width: 30px;
  height: 20px;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
  background: #f3c860;
}

.red-bird .brow {
  position: absolute;
  top: 13px;
  right: 10px;
  width: 25px;
  height: 5px;
  border-radius: 999px;
  background: #4b1818;
  transform: rotate(20deg);
}

.tower,
.beam {
  position: absolute;
  border-radius: 5px;
  background: #b9793f;
  border: 3px solid rgba(80, 45, 20, 0.32);
}

.tower-left {
  right: 126px;
  bottom: 22px;
  width: 28px;
  height: 108px;
  transform: rotate(-8deg);
}

.tower-right {
  right: 62px;
  bottom: 22px;
  width: 28px;
  height: 112px;
  transform: rotate(6deg);
}

.beam-top {
  right: 50px;
  bottom: 129px;
  width: 136px;
  height: 24px;
}

.beam-low {
  right: 16px;
  bottom: 68px;
  width: 116px;
  height: 22px;
}

.pig {
  position: absolute;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #75cf72;
  box-shadow: inset -7px -7px 0 rgba(0, 0, 0, 0.1);
}

.pig-a {
  right: 94px;
  bottom: 154px;
}

.pig-b {
  right: 48px;
  bottom: 92px;
}

.pig span {
  position: absolute;
  left: 15px;
  top: 18px;
  width: 18px;
  height: 13px;
  border-radius: 50%;
  background: #9ee694;
}

.pig span::before,
.pig span::after {
  content: "";
  position: absolute;
  top: 4px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #24321f;
}

.pig span::before {
  left: 4px;
}

.pig span::after {
  right: 4px;
}

.game-section {
  margin-top: 22px;
}

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.section-title h2 {
  margin: 0;
  font-size: 28px;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.game-card {
  min-height: 260px;
  display: grid;
  grid-template-rows: 150px auto auto auto;
  align-content: start;
  gap: 7px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 78%, white);
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.game-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.game-card.featured {
  grid-column: span 2;
  grid-template-rows: 260px auto auto auto;
}

.game-card img {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  object-fit: cover;
  object-position: center bottom;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #111317;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
}

.text-cover {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    radial-gradient(circle at 35% 24%, rgba(240, 200, 106, 0.28), transparent 34%),
    linear-gradient(135deg, #273246, #172019);
}

.text-cover strong {
  color: var(--gold);
  font-size: clamp(34px, 5vw, 66px);
  line-height: 1;
  letter-spacing: 0;
}

.text-cover span {
  color: var(--text);
  font-weight: 900;
}

.game-card.zhao-card {
  border-color: rgba(240, 200, 106, 0.58);
}

.game-card.speed-card {
  border-color: rgba(89, 182, 255, 0.62);
}

.game-card.speed-card i {
  background: rgba(89, 182, 255, 0.28);
  color: #bde7ff;
  box-shadow: 0 0 18px rgba(89, 182, 255, 0.26);
}

.game-card.link-card {
  border-color: rgba(105, 208, 140, 0.58);
  box-shadow: 0 14px 38px rgba(105, 208, 140, 0.18), 0 14px 36px rgba(0, 0, 0, 0.26);
}

.game-card.link-card i {
  background: rgba(105, 208, 140, 0.26);
  color: #a7ffbf;
  box-shadow: 0 0 18px rgba(105, 208, 140, 0.24);
}

.game-card i {
  width: fit-content;
  min-height: 28px;
  display: inline-grid;
  place-items: center;
  padding: 0 10px;
  border-radius: 8px;
  background: rgba(240, 200, 106, 0.3);
  color: #ffe39b;
  font-style: normal;
  font-weight: 900;
  box-shadow: 0 0 14px rgba(240, 200, 106, 0.16);
}

.game-card b {
  font-size: 22px;
  color: #fff8e8;
}

.game-card span {
  line-height: 1.45;
  font-size: 14px;
  color: #d7e1ea;
}

@media (max-width: 920px) {
  .hero,
  .banner,
  .section-title {
    display: grid;
  }

  .hero nav {
    justify-content: start;
  }

  .game-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .banner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .birds-cover {
    min-width: 0;
    width: 100%;
    max-width: 460px;
    justify-self: center;
  }
}

@media (max-width: 560px) {
  .game-grid {
    grid-template-columns: 1fr;
  }

  .game-card.featured {
    grid-column: auto;
  }
}