/* ====== 全局 ====== */
body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: #000;
  overflow: hidden;

  /* 背景图放大并模糊 */
  background: url("../Background/Cloud-A.jpg") center center / cover no-repeat;
  background-size: 110%; /* 放大10%避免白边 */
  position: relative;
}

/* 半透明模糊遮罩层 */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(255, 255, 255, 0.5); /* 50% 白色透明层 */
  backdrop-filter: blur(10px); /* 模糊效果 */
  z-index: -1;
}

/* ====== 黑屏开场动画 ====== */
#intro-screen {
  position: fixed;
  top:0; left:0;
  width:100%; height:100%;
  background:black;
  display:flex;
  justify-content:center;
  align-items:center;
  z-index:9999;
  opacity:1;
  transition: opacity 0.4s ease;
}
#intro-screen span {
  color:white;
  font-size:2.8rem;
  font-weight:bold;
  letter-spacing:2px;
  text-shadow: 0 0 10px rgba(255,255,255,0.6);
}

/* ====== 回退按钮 ====== */
.back-btn {
  position: fixed;
  top: 25px;
  left: 35px;
  font-size: 1.2rem;
  color: #000000;
  text-decoration: none;
  z-index: 10000;
  opacity: 0;
  transition: all 0.5s ease, transform 0.3s ease;
}
.back-btn:hover { transform: scale(1.05); }
.back-btn.show { opacity: 1; }

/* ====== 页面布局 ====== */
.album-page {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  padding: 60px 20px;
  gap: 50px;
  align-items: flex-start;
}

/* ====== 左侧：封面 + SoundCloud ====== */
.album-left {
  flex: 0 0 60%;
  display: flex;
  flex-direction: column;
  align-items: flex-start; /* 更靠左 */
  gap: 15px;
  position: relative;
}

/* ====== 封面随机漂浮动画 ====== */
@keyframes floatCoverSmooth {
  0%   { transform: translate(0px, 0px) rotate(0deg); }
  25%  { transform: translate(-5px, -6px) rotate(-0.3deg); }
  50%  { transform: translate(4px, 5px) rotate(0.4deg); }
  75%  { transform: translate(-3px, 3px) rotate(-0.2deg); }
  100% { transform: translate(0px, 0px) rotate(0deg); }
}

.album-cover-img {
  width: 100%;
  max-width: 700px;
  border-radius: 5%;
  animation: floatCoverSmooth 6s ease-in-out infinite;
  cursor: pointer;
  z-index: 2;
  margin-left: -50px; /* 左移封面 */
}
.album-cover-img:hover { transform: scale(1.04); }

/* ====== SoundCloud 播放器 ====== */
.soundcloud {
  width: 70%;
  max-width: 480px;
  margin-top: 20px;
  margin-left: -40px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.05);
  transform: translateY(-60px);
  opacity: 0;
  z-index: 1;
  pointer-events: none; /* 避免悬停干扰 */
}

/* 显示动画 */
.soundcloud.show {
  animation: showSCSmooth 1.2s forwards;
}
@keyframes showSCSmooth {
  0% { transform: translateY(-60px); opacity: 0; }
  100% { transform: translateY(0px); opacity: 1; }
}

/* 隐藏动画 */
.soundcloud.hide {
  animation: hideSCSmooth 1.2s forwards;
}
@keyframes hideSCSmooth {
  0% { transform: translateY(0px); opacity: 1; }
  100% { transform: translateY(-60px); opacity: 0; }
}

.soundcloud iframe {
  border-radius: 8px;
  width: 100%;
}

/* ====== 右侧文字框 ====== */
.album-right {
  flex: 0 0 50%;
  display: flex;
  flex-direction: column;
  gap: 20px;
  opacity: 1;
  transition: transform 0.3s ease;
}
.album-right:hover { transform: scale(1.02); }

.text-box {
  background: rgba(0,0,0,0.9);
  padding: 25px;
  border-radius: 14px;
  color: #fff;
  box-shadow: inset 0 0 15px rgba(255,255,255,0.05);
  line-height: 1.6;
  height: 95vh;
  overflow-y: auto;
  scroll-behavior: smooth;
  position: relative;
}

/* 隐藏滚动条 */
.text-box::-webkit-scrollbar { width: 0; background: transparent; }
.text-box { -ms-overflow-style: none; scrollbar-width: none; }

/* 渐显文字 */
.text-box::before,
.text-box::after {
  content: "";
  position: sticky;
  top: 0; bottom: 0;
  width: 100%;
  height: 50px;
  pointer-events: none;
  z-index: 2;
}
.text-box::before { background: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent); }
.text-box::after { background: linear-gradient(to top, rgba(0,0,0,0.9), transparent); }

/* ====== 文字样式 ====== */
.album-right h1 { font-size:2.2rem; margin:0; letter-spacing:1px; }
.album-right h2 { font-size:1.3rem; margin:5px 0; color:#fff; letter-spacing:0.5px; }
.album-meta { margin:10px 0; font-size:0.95rem; color:#ccc; }
.tracklist ul { list-style: disc; margin-left:20px; }
.tracklist small { font-size:0.75rem; color:#aaa; }

.story img {
  width:100%;
  border-radius:10px;
  margin:12px 0;
  box-shadow: 5px 5px 25px rgba(0,0,0,0.35);
  transition: transform 0.3s ease;
}
.story img:hover { transform: scale(1.02); }

.platforms {
  display: flex;
  flex-wrap: wrap;
  gap:18px;
  margin-top:25px;
}
.platform { display: flex; flex-direction: column; align-items:center; width:80px; text-align:center; transition: transform 0.3s ease; }
.platform img { width:45px; height:45px; margin-bottom:5px; }
.platform:hover { transform: translateY(-3px); }

.platforms a {
  text-decoration: none;
  color: inherit;
}

.platforms a:visited {
  color: inherit;
}

.platforms a:hover span {
  color: #b35c00;
}


/* ====== 渐显动画 ====== */
.fade-in {
  opacity: 0;
  transform: translateY(15px);
  animation: fadeInUp 1s forwards;
}
@keyframes fadeInUp {
  to { opacity:1; transform: translateY(0); }
}

/* ====== 响应式 ====== */
@media screen and (max-width: 1024px) {
  .album-page { flex-direction: column; padding: 40px 15px; }
  .album-left, .album-right { flex: 1 1 100%; }
  .album-left { align-items: center; }
  .album-cover-img { max-width: 90%; margin-left: 0; }
  .soundcloud { max-width: 90%; margin-left: 0; margin-top:-20px; }
  .text-box { height: auto; min-height: 400px; }
}

/* ====== 歌词对齐 ====== */
.lyrics { text-align: left; margin: 15px 0; line-height: 1.5em; font-size: 0.95rem; color: #fff; letter-spacing: 0.5px; }
.lyrics p { margin: 0; padding: 0; }

/* ====== MV区域 ====== */
.video-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.video-grid iframe { width: 100%; aspect-ratio: 16/9; border-radius: 12px; border: none; }