/* ========================
   Choco-Archives.css
   完整美化版（修正版）
======================== */

/* ===== fonts & base ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

:root{
  --bg: #fcf9f7;
  --white: #ffffff;
  --accent: #7a4c70;       /* 粉紫主色 */
  --accent-2: #b565a7;     /* 深粉 */
  --muted: #6b6b6b;
  --card-shadow: rgba(0,0,0,0.07);
  --glass: rgba(255,255,255,0.6);
  --soft: linear-gradient(90deg,#f7d1e0,#eec9d6);
}

*{box-sizing:border-box}
html,body{height:100%}
body {
  font-family: 'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif;
  background: var(--bg);
  color: #222;
  margin: 0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  scroll-behavior: smooth;
}

/* ===== header ===== */
header{
  display:flex;justify-content:space-between;align-items:center;
  padding:1.2rem 2rem;background:#fff8fa;
  box-shadow:0 3px 10px rgba(0,0,0,0.04);position:sticky;top:0;z-index:1000;
}
.logo h1{
  font-size:1.9rem;color:var(--accent);
  margin:0;font-weight:700;letter-spacing:1px;
  border-bottom:none; /* 移除大标题下划线 */
}
nav a{
  margin-left:1.4rem;color:var(--muted);
  font-weight:500;padding:0.25rem 0.5rem;border-radius:6px;
  text-decoration:none; /* 移除下划线 */
}
nav a:hover{background:#f6e6ef;color:var(--accent)}

/* ===== main container ===== */
main{max-width:1200px;margin:0 auto;padding:3rem 1.5rem;display:flex;flex-direction:column;gap:4rem;align-items:center}

/* ===== hero ===== */
.hero{text-align:center;margin-top:0}
.hero h2{font-size:2.6rem;color:var(--accent);margin:0 0 0.6rem;font-weight:800}
.hero p{max-width:760px;color:#474747;margin:0 auto;font-size:1.05rem;line-height:1.7}
.japanese-wave{width:160px;height:5px;background:var(--soft);margin:1.6rem auto;border-radius:10px;box-shadow:0 4px 12px rgba(122,76,112,0.08)}

/* ===== intro cards grid ===== */
.archive-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.6rem;width:100%}
.archive-card{background:linear-gradient(180deg,#fff,#fff);border-radius:14px;padding:1.6rem;box-shadow:0 10px 26px var(--card-shadow);transition:transform .28s,box-shadow .28s,filter .28s;position:relative;overflow:hidden}
.archive-card h3{margin:0;color:var(--accent);font-size:1.05rem}
.archive-card p{color:var(--muted);margin-top:0.6rem;font-size:0.95rem}
.archive-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(0,0,0,0.09)}

/* small muted */
.muted{color:var(--muted);font-size:0.9rem}
.small{font-size:0.85rem}

/* ===== album slider area ===== */
.album-section{width:100%;padding:1rem 0}
.album-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:0.8rem}
.album-header h2{margin:0;font-size:1.8rem;color:var(--accent)}
.album-controls button{background:linear-gradient(180deg,#fff,#fdeaf3);border:1px solid rgba(122,76,112,0.06);padding:8px 12px;border-radius:10px;color:var(--accent-2);cursor:pointer;box-shadow:0 6px 14px rgba(0,0,0,0.04)}
.album-controls button[aria-pressed="true"]{background:#f2d6e6;color:var(--accent)}

/* slider viewport (mask) */
.album-slider-viewport{
  width:100vw; /* 扩展到整个视口 */
  margin-left:calc(50% - 50vw); /* 居中对齐，突破容器限制 */
  overflow:hidden;padding-bottom:6px;border-radius:0;
}
.album-slider{display:flex;gap:20px;padding:8px 4px;scroll-snap-type:x mandatory;overflow-x:auto;scroll-behavior:smooth;will-change:transform}
.album-slider::-webkit-scrollbar{display:none}

/* album card */
.album-card{
  flex:0 0 260px;
  background:linear-gradient(180deg,#fff,#fff);
  border-radius:14px;padding:12px;
  box-shadow:0 8px 18px rgba(0,0,0,0.06);
  scroll-snap-align:start;cursor:pointer;
  transition:transform .26s,box-shadow .26s;
  position:relative;
}
.album-card img{
  width:100%;height:220px; /* 高度提升，更大气 */
  object-fit:cover;border-radius:12px;
  display:block;margin-bottom:10px
}
.album-card h4{margin:6px 0 0;color:var(--accent);font-size:1.02rem}
.album-card p{margin:0;color:var(--muted);font-size:0.9rem}
.album-card:focus, .album-card:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(0,0,0,0.10)}

/* show an overlay gloss shimmer on hover */
.album-card::after{
  content:'';position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;border-radius:14px;
  background:linear-gradient(120deg, rgba(255,255,255,0.0) 0%, rgba(255,255,255,0.06) 30%, rgba(255,255,255,0.0) 60%);
  opacity:0;transition:opacity .4s, transform .6s;transform:translateX(-30%);
}
.album-card:hover::after{opacity:1;transform:translateX(30%)}

/* ===== article exhibition ===== */
.article-section{width:100%}
.article-section h2{font-size:1.8rem;color:var(--accent);margin-bottom:1rem}
.article-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.2rem}
.article-card{background:#fff;border-radius:12px;padding:1.4rem;box-shadow:0 10px 22px rgba(0,0,0,0.06);display:flex;flex-direction:column;min-height:170px;transition:transform .24s}
.article-card h3{margin:0;color:var(--accent)}
.article-card p{flex:1;color:var(--muted);margin-top:0.6rem}
.article-card .read-more{align-self:flex-end;color:var(--accent-2);text-decoration:underline}
.article-card:hover{transform:translateY(-6px)}

/* ===== instrument section ===== */
.instrument-section{width:100%}
.instrument-section h2{font-size:1.8rem;color:var(--accent);margin-bottom:0.4rem}
.instrument-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:0.9rem;margin-top:1rem}
.instrument-card{background:#fff;border-radius:10px;padding:12px;box-shadow:0 8px 18px rgba(0,0,0,0.06);transition:transform .22s;text-align:center;cursor:pointer}
.instrument-card h4{margin:0;color:var(--accent)}
.instrument-card:hover{transform:translateY(-6px);box-shadow:0 18px 30px rgba(0,0,0,0.08)}

/* ===== platform logos floating ===== */
.platform-logos{text-align:center;width:100%;padding:1.6rem 0}
.logo-container{display:flex;justify-content:center;gap:18px;align-items:center}
.logo-container img{width:44px;height:44px;filter:drop-shadow(0 6px 14px rgba(0,0,0,0.06));transition:transform .25s}
.logo-container img:hover{transform:translateY(-6px)}

/* ===== footer ===== */
footer{width:100%;background:#fff;padding:2rem 1rem;margin-top:2.4rem;border-top:1px solid #eee;text-align:center;color:#888}

/* ===== custom cursor ===== */
#cursor-dot{position:fixed;top:0;left:0;width:18px;height:18px;border-radius:50%;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);background:radial-gradient(circle,#b478cb 0%, #ffb6c1 70%);mix-blend-mode:screen;transition:transform .12s ease,width .12s,height .12s}
#cursor-dot.large{transform:translate(-50%,-50%) scale(1.6);}

/* ===== responsive tweaks ===== */
@media (max-width:880px){
  .hero h2{font-size:1.8rem}
  .album-card{flex:0 0 200px}
  .album-card img{height:160px}
  nav a{font-size:0.92rem;margin-left:10px}
  main{padding:2rem 1rem}
}