/* アバターカメラ 紹介サイト（TOP・操作方法 共通） */
:root {
  --bg: #0e1120;
  --bg-2: #141830;
  --surface: #1a1f38;
  --surface-2: #222846;
  --line: #2d3456;
  --text: #eef1f8;
  --muted: #a7afc6;
  --accent: #8fb8ff;
  --accent-2: #c7a6ff;
  --pink: #f4b8d4;
  --ok: #7fe0b8;
  --radius: 16px;
  --wrap: 1120px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.85 "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { width: min(var(--wrap), 100% - 32px); margin: 0 auto; }
h1, h2, h3 { line-height: 1.4; letter-spacing: .02em; }
h2 { font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem); margin: 0 0 .4em; }
h3 { font-size: 1.2rem; margin: 0 0 .4em; }
p { margin: 0 0 1em; }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 46em; }
.eyebrow { display: inline-block; color: var(--accent); font-size: .85rem; font-weight: 700; letter-spacing: .12em; margin-bottom: .4em; }

/* ヘッダー */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(14, 17, 32, .82); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, .06); }
.site-header .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.05rem; white-space: nowrap; }
.brand img { width: 28px; height: 28px; }
.site-nav { margin-left: auto; display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.site-nav::-webkit-scrollbar { display: none; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: .92rem; padding: 6px 12px; border-radius: 999px; white-space: nowrap; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); background: var(--surface); }

/* ボタン・バッジ */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 999px; font-weight: 700; text-decoration: none; transition: transform .15s, background .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #10142a; }
.btn-ghost { border: 1px solid rgba(255, 255, 255, .25); color: var(--text); background: rgba(255, 255, 255, .04); }
.badge { display: inline-block; padding: 3px 14px; border-radius: 999px; font-size: .85rem; font-weight: 700; background: var(--accent); color: #10142a; }
.badge-pro { background: var(--accent-2); }
.tag { display: inline-block; padding: 1px 10px; border-radius: 999px; font-size: .75rem; font-weight: 700; border: 1px solid var(--line); color: var(--muted); vertical-align: middle; }
.tag-pro { border-color: rgba(199, 166, 255, .5); color: var(--accent-2); }

/* ヒーロー */
.hero { position: relative; min-height: min(88vh, 760px); display: flex; align-items: center; overflow: hidden; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 20%; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(12, 15, 30, .94) 0%, rgba(12, 15, 30, .78) 36%, rgba(12, 15, 30, .1) 66%), linear-gradient(0deg, var(--bg) 0%, transparent 22%); }
.hero .wrap { position: relative; z-index: 1; padding: 72px 0 96px; }
.hero h1 { font-size: clamp(2rem, 1.2rem + 3.6vw, 3.5rem); margin: .5em 0 .45em; }
.hero h1 span { display: block; }
.hero p { color: #d3d9ea; font-size: 1.08rem; max-width: 30em; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero .note { margin-top: 18px; font-size: .88rem; color: var(--muted); }

/* セクション */
section { padding: 88px 0; }
section.alt { background: var(--bg-2); }
.section-head { margin-bottom: 40px; }

/* 3つの柱 */
.pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.pillar { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.pillar .icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(143, 184, 255, .14); color: var(--accent); margin-bottom: 14px; }
.pillar p { color: var(--muted); margin: 0; }

/* 機能の詳細（画像と文を交互に） */
.feature { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; padding: 40px 0; }
.feature + .feature { border-top: 1px solid var(--line); }
.feature.reverse .feature-media { order: 2; }
.feature-media img { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(0, 0, 0, .35); }
.feature-media figcaption { color: var(--muted); font-size: .85rem; margin-top: 10px; }
.feature-text p { color: var(--muted); }
.feature-text ul { color: var(--muted); padding-left: 1.2em; margin: 0; }
.vowel-labels { display: grid; grid-template-columns: repeat(5, 1fr); text-align: center; color: var(--muted); font-weight: 700; margin-top: 8px; }

/* そのほかの機能 */
.mini-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 24px; }
.mini { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.mini h3 { font-size: 1rem; margin-bottom: .25em; }
.mini p { color: var(--muted); font-size: .92rem; margin: 0; }

/* 無料版と高機能版 */
.compare { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; }
.compare th, .compare td { padding: 14px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare thead th { background: var(--surface-2); font-size: .95rem; }
.compare td:not(:first-child), .compare th:not(:first-child) { text-align: center; }
.compare .yes { color: var(--ok); font-weight: 700; }
.compare .no { color: #5f6788; }
.table-scroll { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); }
.price-note { color: var(--muted); font-size: .9rem; margin-top: 14px; }

/* 開発予定 */
.roadmap { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.road { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.road.highlight { border-color: rgba(244, 184, 212, .55); background: linear-gradient(160deg, rgba(244, 184, 212, .1), var(--surface) 60%); }
.road p { color: var(--muted); margin: 0; }

/* 安心 */
.trust { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.trust div { border-left: 3px solid var(--accent); padding: 4px 0 4px 18px; }
.trust p { color: var(--muted); margin: 0; }

/* よくある質問 */
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 4px 20px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; color: var(--accent); }
.faq details[open] summary::after { content: "－"; }
.faq details p { color: var(--muted); }

/* お知らせの案内 */
.cta { text-align: center; }
.cta .box { background: linear-gradient(135deg, rgba(143, 184, 255, .16), rgba(199, 166, 255, .16)); border: 1px solid var(--line); border-radius: 24px; padding: 56px 24px; }
.cta p { color: var(--muted); }

/* フッター */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0; color: var(--muted); font-size: .88rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.site-footer a { color: var(--muted); }

/* 操作方法ページ */
.guide-hero { padding: 64px 0 24px; }
.guide-hero h1 { font-size: clamp(1.8rem, 1.2rem + 2vw, 2.6rem); margin: .2em 0 .4em; }
.guide-layout { display: grid; grid-template-columns: 240px 1fr; gap: 48px; padding-bottom: 80px; }
.toc { position: sticky; top: 80px; align-self: start; font-size: .92rem; }
.toc p { color: var(--muted); font-weight: 700; margin-bottom: .4em; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc a { display: block; color: var(--muted); text-decoration: none; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; }
.toc a:hover { color: var(--text); border-left-color: var(--accent); }
.step { padding: 32px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 80px; }
.step:last-child { border-bottom: 0; }
.step h2 { font-size: 1.45rem; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.step .num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #10142a; font-size: 1rem; flex: none; }
.step p, .step li { color: #cfd5e6; }
.step ol, .step ul { padding-left: 1.3em; }
.step li { margin-bottom: .35em; }
.shot { margin: 20px 0; }
.shot img { border-radius: 12px; border: 1px solid var(--line); }
.shot figcaption { color: var(--muted); font-size: .85rem; margin-top: 8px; }
.shot-row { display: grid; grid-template-columns: minmax(0, 340px) 1fr; gap: 28px; align-items: start; margin: 20px 0; }
.shot-row .shot { margin: 0; }
.callout { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--pink); border-radius: 10px; padding: 14px 18px; margin: 18px 0; color: #cfd5e6; font-size: .95rem; }
.callout strong { color: var(--text); }
kbd { font: .85em ui-monospace, Consolas, monospace; background: var(--surface-2); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; padding: 1px 7px; }
.steps-table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: .95rem; }
.steps-table th, .steps-table td { border-bottom: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.steps-table th { color: var(--muted); font-weight: 700; white-space: nowrap; }

/* スマホ */
@media (max-width: 860px) {
  section { padding: 64px 0; }
  .feature { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
  .feature.reverse .feature-media { order: 0; }
  .guide-layout { grid-template-columns: 1fr; gap: 0; }
  .toc { position: static; margin-bottom: 8px; }
  .shot-row { grid-template-columns: 1fr; }
  .hero { min-height: 620px; align-items: flex-end; }
  .hero-img { object-position: 78% 15%; }
  .hero::after { background: linear-gradient(0deg, rgba(12, 15, 30, .97) 0%, rgba(12, 15, 30, .82) 45%, rgba(12, 15, 30, .15) 80%); }
}
@media (max-width: 520px) {
  .site-nav a { padding: 6px 9px; font-size: .85rem; }
  .compare th, .compare td { padding: 10px 12px; }
}

/* Character and background showcase */
.character-original-link { display:block; position:relative; cursor:zoom-in; }
.character-zoom-hint { position:absolute; bottom:10px; right:10px; border-radius:999px; padding:3px 10px; background:rgba(14,17,32,.8); color:#fff; font-size:12px; }
.character-original-link:hover img { filter:brightness(1.06); }
.character-lightbox { width:100vw; height:100dvh; max-width:none; max-height:none; margin:0; padding:16px; border:0; background:transparent; color:#fff; }
.character-lightbox::backdrop { background:rgba(5,7,17,.92); }
.character-lightbox[open] { display:flex; flex-direction:column; align-items:center; gap:10px; }
.character-lightbox-bar { width:min(100%,1050px); display:flex; justify-content:space-between; align-items:center; gap:12px; flex-shrink:0; }
.character-lightbox-bar h2 { font-size:16px; margin:0; }
.character-lightbox button { border:1px solid #737b98; border-radius:8px; color:#fff; background:#252b42; padding:8px 14px; cursor:pointer; font:inherit; }
.character-lightbox-content { display:flex; justify-content:center; align-items:center; gap:14px; min-height:0; flex:1; width:100%; pointer-events:none; }
.character-lightbox-content img { object-fit:contain; width:auto; height:auto; max-width:calc(100% - 120px); max-height:100%; pointer-events:auto; }
.character-lightbox-content button { pointer-events:auto; font-size:28px; }
.character-lightbox-help { font-size:12px; margin:0; color:#c6cce0; }
@media(max-width:520px) { .character-lightbox { padding:10px; } .character-lightbox-content { gap:4px; } .character-lightbox-content img { max-width:calc(100% - 72px); } .character-lightbox-content button { padding:6px 9px; } }
.effect-demo-actions { display:flex; align-items:center; gap:16px; flex-wrap:wrap; margin-top:14px; font-size:13px; }
.effect-demo-actions button { font:inherit; cursor:pointer; }
.effect-demo-actions button[hidden] { display:none; }
.sample-character-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px; }
.sample-character { margin:0; overflow:hidden; border-radius:16px; background:var(--card,#171c30); border:1px solid rgba(180,180,220,.15); }
.sample-character img { display:block; width:100%; height:auto; }
.sample-character figcaption { padding:12px 16px; font-weight:700; text-align:center; }
.scene-showcase { display:grid; grid-template-columns:1.5fr 1fr; gap:32px; align-items:center; margin-top:56px; }
.scene-showcase figure { margin:0; }
.scene-showcase figure img { display:block; width:100%; height:auto; border-radius:16px; }
.scene-showcase figcaption { color:var(--muted,#aab0c6); font-size:13px; margin-top:10px; }
.scene-copy h3 { font-size:24px; line-height:1.5; margin:10px 0 16px; }
.scene-copy p { line-height:1.9; }
.scene-background-preview { display:block; width:100%; max-width:280px; height:auto; border-radius:10px; margin-top:18px; }
@media(max-width:760px) { .sample-character-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; } .scene-showcase { grid-template-columns:1fr; gap:24px; margin-top:32px; } }