/* Audio Spectrum + 静的ページ共通スタイル（宇宙テーマ） */
:root{
  --bg:#05060d; --panel:#11141f; --panel2:#1a1e2e; --line:#2c3354;
  --text:#eef1f8; --sub:#9aa3c0; --accent:#6a5cff; --accent2:#00d4ff;
  --grad:linear-gradient(135deg,#6a5cff,#00d4ff);
  --glass:rgba(15,18,30,.92); --body2:#cdd4e6;
}
html.light{
  --bg:#eef1f8; --panel:#ffffff; --panel2:#f1f4fb; --line:#c8d0e4;
  --text:#1d2438; --sub:#5d6783;
  --glass:rgba(255,255,255,.92); --body2:#3a4360;
}
html.light #stars{display:none;}
html.light body{background:linear-gradient(180deg,#f2f4fa,#e2e8f6); min-height:100vh;}
html.light .hero{background:linear-gradient(135deg,rgba(106,92,255,.12),rgba(0,212,255,.08)), var(--panel);}
html.light .todo{background:rgba(176,124,0,.12); color:#8a6100;}
html.light .note, html.light .wrap .note{background:rgba(176,124,0,.07); border-color:rgba(176,124,0,.45); color:#8a6100;}
html.light .highlight{background:rgba(20,140,80,.06); border-color:rgba(20,140,80,.4); color:#1d6b43;}
#themeBtn{background:var(--panel2); border:1px solid var(--line); color:var(--text); border-radius:10px; padding:6px 10px; font-size:13px; cursor:pointer;}
*{box-sizing:border-box; margin:0; padding:0;}
body{background:var(--bg); color:var(--text); font-family:"Hiragino Sans","Noto Sans JP",-apple-system,sans-serif; line-height:1.9; position:relative;}
#stars{position:fixed; inset:0; z-index:0; pointer-events:none;}
header{position:relative; z-index:1; display:flex; align-items:center; gap:14px; padding:12px 22px; background:var(--glass); border-bottom:1px solid var(--line);}
header .logo{font-weight:bold; font-size:17px; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; text-decoration:none;}
header nav{margin-left:auto; display:flex; gap:16px; flex-wrap:wrap;}
header nav a{color:var(--sub); text-decoration:none; font-size:12.5px;}
header nav a:hover{color:var(--accent2);}
.crumb{position:relative; z-index:1; max-width:860px; margin:14px auto 0; padding:0 18px; font-size:11.5px; color:var(--sub);}
.crumb a{color:var(--sub); text-decoration:none;}
.hero{position:relative; z-index:1; max-width:860px; margin:14px auto 26px; padding:34px 20px; text-align:center; border-radius:16px;
  background:linear-gradient(135deg,rgba(106,92,255,.25),rgba(0,212,255,.12)), var(--panel);
  border:1px solid var(--line);}
.hero h1{font-size:22px; margin-bottom:6px;}
.hero p{color:var(--sub); font-size:13px;}
main{position:relative; z-index:1; max-width:860px; margin:0 auto; padding:0 18px 60px;}
.card{background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:26px 28px; margin-bottom:22px;}
.card h2{font-size:16px; margin-bottom:14px; padding-bottom:10px; border-bottom:1px solid var(--line); color:var(--accent2);}
.card h3{font-size:14px; margin:18px 0 8px;}
.card p, .card li{font-size:13px; color:var(--body2);}
.card ul, .card ol{padding-left:22px; margin:8px 0;}
table.spec{width:100%; border-collapse:collapse; font-size:13px;}
table.spec th{width:32%; text-align:left; vertical-align:top; padding:11px 12px; background:var(--panel2); border:1px solid var(--line); color:var(--text); font-weight:600;}
table.spec td{padding:11px 12px; border:1px solid var(--line); color:var(--body2);}
.note{background:rgba(255,199,77,.08); border:1px solid rgba(255,199,77,.4); color:#ffd98a; border-radius:10px; padding:12px 16px; font-size:12px; margin-bottom:22px;}
label{display:block; font-size:12.5px; margin:16px 0 6px; color:var(--text);}
label .req{color:#ff6b81; font-size:11px; margin-left:4px;}
input[type=text],input[type=email],select,textarea{width:100%; background:var(--panel2); border:1px solid var(--line); border-radius:10px; color:var(--text); padding:11px 13px; font-size:13.5px; font-family:inherit;}
textarea{min-height:140px; resize:vertical;}
.submit{display:block; width:100%; margin-top:22px; background:var(--grad); color:#fff; border:none; border-radius:12px; padding:14px; font-size:14.5px; font-weight:bold; cursor:pointer;}
.submit:hover{filter:brightness(1.1);}
.small{font-size:11px; color:var(--sub); text-align:center; margin-top:10px;}
.infoRow{display:flex; gap:12px; align-items:flex-start; padding:12px 0; border-bottom:1px solid var(--line); font-size:13px;}
.infoRow:last-child{border-bottom:none;}
.infoRow .ic{font-size:18px; flex-shrink:0;}
.infoRow b{display:block; font-size:13px; margin-bottom:2px;}
.infoRow span{color:var(--sub); font-size:12.5px;}
footer{position:relative; z-index:1; text-align:center; padding:22px 10px 30px; border-top:1px solid var(--line); background:var(--glass); font-size:11px; color:var(--sub);}
footer a{color:var(--sub); text-decoration:none; margin:0 9px;}
footer a:hover{color:var(--accent2);}
@media (max-width:600px){ .card{padding:18px 16px;} table.spec th{width:38%;} }