:root{
    --bg:#0b0c10;
    --panel:#11131a;
    --text:#e9edf1;
    --muted:#b7c0cc;
    --border:rgba(255,255,255,.10);
    --accent:#7dd3fc;
    --shadow: 0 10px 30px rgba(0,0,0,.25);
    --radius:8px;
    --maxw: 980px;
  }
  
  *{ box-sizing:border-box; }
  html,body{ height:100%; }
  body{
    margin:0;
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
    /* background: radial-gradient(1200px 600px at 15% 0%, rgba(125,211,252,.12), transparent 60%),
                radial-gradient(900px 500px at 80% 10%, rgba(167,139,250,.10), transparent 60%),
                var(--bg); */
    color:var(--text);
    line-height:1.65;
  }
  
  a{ color:inherit; text-decoration:none; }
  a:hover{ text-decoration:underline; text-underline-offset: 4px; }
  
  .container{ width:min(var(--maxw), calc(100% - 40px)); margin:0 auto; }
  
  .skip-link{
    position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
  }
  .skip-link:focus{ left:16px; top:16px; width:auto; height:auto; padding:10px 12px; background:var(--panel); border:1px solid var(--border); border-radius:12px; z-index:9999; }
  
  header{
    position:sticky; top:0; z-index:50;
    background: rgba(11,12,16,.70);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
  }
  .header-inner{
    display:flex; align-items:center; justify-content:space-between;
    padding:14px 0;
    gap:12px;
  }
  
  .brand{
    display:flex; align-items:center; gap:10px;
    font-weight:700;
  }
  .brand .dot{
    width:12px; height:12px; border-radius:999px;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    box-shadow: 0 0 0 4px rgba(125,211,252,.12);
  }
  
  nav{ display:flex; align-items:center; margin-left:auto; }
  .nav-links{ display:flex; align-items:center; gap:14px; }
  nav a{
    padding:8px 10px; border-radius:12px;
    color:var(--muted);
  }
  nav a.active{
    color:var(--text);
    background: rgba(255,255,255,.06);
    border:1px solid var(--border);
    text-decoration:none;
  }
  .nav-lang{
    display:flex;
    align-items:center;
    gap:0px;
    color:var(--muted);
    white-space:nowrap;
    font-size:14px;
  }
  .nav-divider{
    color:rgba(255,255,255,.45);
    padding: 10px;
    font-size:20px;
  }
  .lang-sep{
    color:rgba(255,255,255,.45);
    padding: 2px;
  }
  .lang-link{
    padding: 5px;
  }
  .lang-link.current{
    color:var(--text);
    font-weight:700;
  }
  
  .icon-btn{
    display:none;
    border:1px solid var(--border);
    background: rgba(255,255,255,.06);
    color:var(--text);
    padding:10px 12px;
    border-radius:12px;
    cursor:pointer;
  }
  
  main{ padding:28px 0 46px; }
  
  .hero{
    padding:28px;
    border:1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }
  .hero h1{ margin:0 0 0 0px; font-size: clamp(24px, 2.6vw, 34px); letter-spacing:.2px; }
  .hero p{ margin:0; color:var(--muted); }
  .hero .meta{
    margin-top:14px;
    display:flex; flex-wrap:wrap; gap:10px;
  }
  .badge{
    display:inline-flex; align-items:center; gap:8px;
    padding:8px 10px;
    border-radius:999px;
    border:1px solid var(--border);
    background: rgba(255,255,255,.04);
    color:var(--muted);
    font-size:14px;
  }
  
  .grid{
    /* margin-top:18px; */
    display:grid;
    grid-template-columns: .8fr .2fr;
    gap:16px;
  }
  .card{
    padding:18px;
    border:1px solid var(--border);
    background: rgba(255,255,255,.04);
    border-radius: var(--radius);
  }
  .card h2{ margin:0 0 10px; font-size:18px; }
  .card p{ margin:0; color:var(--muted); }
  
  .list{
    margin:0; padding:0; list-style:none;
    display:flex; flex-direction:column; gap:10px;
  }
  .list li{
    border:1px solid var(--border);
    background: rgba(0,0,0,.12);
    border-radius:14px;
    padding:12px 12px;
  }
  .list .row{
    display:flex; gap:10px; align-items:flex-start; justify-content:space-between;
  }
  .small{ font-size:13px; color:var(--muted); }
  .kicker{ font-size:13px; color:var(--muted); margin-bottom:6px; }
  
  .btn-row{ display:flex; flex-wrap:wrap; gap:10px; margin-top:12px; }
  .btn-row-baseline{
    align-items: baseline;
  }
  .btn{
    display:inline-flex; align-items:center; justify-content:center;
    padding:10px 12px;
    border-radius:14px;
    border:1px solid var(--border);
    background: rgba(255,255,255,.06);
    color:var(--text);
    text-decoration:none;
    cursor:pointer;
    white-space: pre-line; /* \n を改行として表示 */
  }
  .btn.primary{
    background: rgba(125,211,252,.14);
    border-color: rgba(125,211,252,.35);
  }
  .btn:hover{
    /* text-decoration:none; */
    text-decoration: underline;
    text-underline-offset: 4px;
    filter: brightness(1.05);
  }
  
  .section{
    margin-top:20px;
    padding:18px;
    border:1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(255,255,255,.03);
  }
  .section h2{ margin:0 0 12px; font-size:20px; }
  .section h3{ margin:18px 0 10px; font-size:16px; color:var(--text); }
  .section .muted{ color:var(--muted); }
  
  .timeline{
    display:flex; flex-direction:column; gap:12px;
  }
  .item{
    padding:12px;
    border:1px solid var(--border);
    border-radius:14px;
    background: rgba(0,0,0,.12);
  }
  .item .top{
    display:flex; gap:10px; justify-content:space-between; align-items:flex-start; flex-wrap:wrap;
  }
  .item .title{ font-weight:650; }
  .tags{ display:flex; gap:8px; flex-wrap:wrap; margin-top:8px; }
  .tag{
    font-size:12px; color:var(--muted);
    border:1px solid var(--border);
    background: rgba(255,255,255,.04);
    padding:4px 8px;
    border-radius:999px;
  }
  
  footer{
    padding:26px 0 40px;
    border-top: 1px solid var(--border);
    color: var(--muted);
  }
  
  .note{
    margin-top:10px;
    font-size:13px;
    color: var(--muted);
  }
  
  .form{
    display:grid; gap:10px;
  }
  .input, textarea{
    width:100%;
    padding:12px 12px;
    border-radius:14px;
    border:1px solid var(--border);
    background: rgba(0,0,0,.18);
    color: var(--text);
  }
  textarea{ min-height: 130px; resize: vertical; }
  
  .toast{
    position: fixed;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
    background: rgba(17,19,26,.95);
    border:1px solid var(--border);
    padding:10px 12px;
    border-radius: 14px;
    color: var(--text);
    box-shadow: var(--shadow);
    display:none;
    z-index:999;
  }
  
  @media (max-width: 860px){
    .grid{ 
      grid-template-columns: 1fr;
      row-gap:0px;
    }
  }
  
  @media (max-width: 720px){
    nav{
      position:absolute;
      right: 20px;
      top: 62px;
      flex-direction:column;
      align-items:stretch;
      background: rgba(17,19,26,.96);
      border:1px solid var(--border);
      border-radius: 16px;
      padding: 10px;
      display:none;
      min-width: 220px;
    }
    .nav-links{
      display:flex;
      flex-direction:column;
      align-items:stretch;
      gap:0;
    }
    .nav-lang{
      justify-content:flex-end;
      border-top:1px solid var(--border);
      padding-top:10px;
    }
    nav.open{ display:flex; }
    .icon-btn{ display:inline-flex; }
  }
  
  .hero-top{
    display:flex;
    gap:16px;
    align-items:flex-start;
  }
  .hero-top h1{
    letter-spacing: 2px;
  }
  
  .avatar{
    width:120px;
    height:120px;
    border-radius:18px;
    object-fit:cover;
    border:1px solid var(--border);
    background: rgba(255,255,255,.04);
    box-shadow: var(--shadow);
    flex: 0 0 auto;
  }
  
  @media (max-width: 720px){
    .hero-top{
      flex-direction:column;
      align-items:flex-start;
    }
    .avatar{
      width:96px;
      height:96px;
    }
  }

/* Topページ hero内のバッジとボタンを小さめに */
.hero .meta { 
    margin-top: 10px;
    gap: 8px;
  }
  
.hero .badge{
    font-size: 12px;
    padding: 6px 8px;
}

.hero .btn-row{
    margin-top: 10px;
    gap: 8px;
}

.hero .btn{
    font-size: 13px;
    padding: 5px 10px;
    border-radius: 12px;
}

/* 背景は html に固定して、繰り返し表示を防ぐ */
html{
    min-height: 100%;
    background:
      radial-gradient(1200px 600px at 15% 0%, rgba(125,211,252,.12), transparent 60%),
      radial-gradient(900px 500px at 80% 10%, rgba(167,139,250,.10), transparent 60%);
    background-color: var(--bg);
    background-repeat: no-repeat;
    background-attachment: fixed;
  }
  
body{
  background: transparent;
}

.news-head{
  display:flex;
  gap:10px;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  margin-bottom:6px;
}

.news-date{
  font-size:13px;
  color: var(--muted);
}

.news-title{
  /* タイトルを2行目として強調したい場合 */
  font-size: 15px;
}

.news-tags{
  display:flex;
  flex-wrap:wrap;
  gap: 6px 8px;
}

/* 特定のボタンだけ上下paddingを小さく */
.btn-inline{
  padding-top: 4px;
  padding-bottom: 4px;
  border-radius: 10px;
  /* 左右も詰めたいなら ↓ */
  /* padding-left: 8px;
     padding-right: 8px; */
  line-height: 1.2;
}

.pub-row{
  display:flex;
  gap:8px;
  align-items:flex-start;
}

.pub-index{
  flex:0 0 auto;
  font-weight:600;
  min-width: 2em; /* [1] と [10] を揃える */
}

.pub-body{
  flex:1 1 auto;
}

/* 1行目: 著者（少し小さめ＆薄い色） */
.pub-authors{
  font-size: 0.9rem;
  color: var(--muted);
}

/* 2行目: タイトル（少し大きめ＆太字） */
.pub-title{
  font-size: 1.0rem;      /* ベースより少し大きめに調整したいなら 1.05rem 等 */
  font-weight: 600;
  margin: 2px 0 1px;
}

.pub-title a{
  text-decoration: none;
}

.pub-title a:hover{
  text-decoration: underline;
}

/* 3行目: venue + year（少し小さめ） */
.pub-meta{
  font-size: 0.9rem;
}

/* venue だけ斜体 */
.pub-venue{
  font-style: italic;
}

.theses-list .thesis-item{
  /* 既存の .list li のスタイルが乗るので、必要なら少しだけ調整 */
}

.thesis-degree{
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.thesis-title{
  font-size: 1.0rem;      /* タイトルを本文より少し大きく */
  font-weight: 500;
  margin-top: 2px;
}

.news-detail .hero > .small{
  margin-bottom: 14px;
}

.news-detail .hero h1{
  line-height: 1.25;
  margin-bottom: 12px;
}