/* =========================================================
   ロイヤルループ ブランドCSS (共有)
   静的HTMLサイト用 / 独自軽量デザインシステム
   ========================================================= */
:root{
  --royal1:#2e3e96; --royal2:#141e4e; --royal3:#1b2a63;
  --gold:#ffc53d;   --gold-d:#f0a500;
  --mint:#26cea1;
  --ink:#1c2540; --muted:#5b678c; --soft:#8792b8;
  --bg:#f5f7ff; --bg2:#eef2ff; --line:#e5e9fb; --card:#ffffff;
  --radius:16px; --shadow:0 6px 20px rgba(30,45,110,.07);
  --maxw:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",system-ui,sans-serif;
  color:var(--ink); background:#fff; line-height:1.85; -webkit-font-smoothing:antialiased;
  font-size:17.5px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.center{text-align:center}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--gold);color:#1a2350;font-weight:700;
  padding:14px 30px;border-radius:999px;box-shadow:0 8px 22px rgba(255,197,61,.32);
  transition:transform .15s, box-shadow .15s;font-size:15px}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,197,61,.4)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);box-shadow:none}
.btn.sm{padding:9px 20px;font-size:14px}
.btn.royal{background:var(--royal1);color:#fff;box-shadow:none}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(20,30,78,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:20px}
.brand img{width:34px;height:34px;border-radius:8px}
.nav .sp{flex:1}
.nav a.lk{color:#d7ddff;font-size:14px;white-space:nowrap}
.nav a.lk:hover,.nav a.lk.on{color:#fff}
@media(max-width:820px){.nav a.lk{display:none}}

/* ---------- hero ---------- */
.hero{position:relative;background:linear-gradient(160deg,var(--royal1),var(--royal2));color:#fff;overflow:hidden}
.hero:after{content:"";position:absolute;right:-140px;top:-90px;width:540px;height:540px;
  border:64px solid rgba(255,255,255,.04);border-radius:50%}
.hero .wrap{position:relative;padding:76px 24px 66px}
.badge{display:inline-block;background:var(--gold);color:#1a2350;font-weight:700;font-size:13px;
  padding:6px 14px;border-radius:999px;margin-bottom:22px}
.hbrand{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.hbrand img{width:70px;height:70px;border-radius:16px}
.hbrand .t{font-size:34px;font-weight:800;letter-spacing:.02em;line-height:1.1}
.hbrand .t small{display:block;color:var(--gold);font-size:14px;letter-spacing:.34em;font-weight:700;margin-top:4px}
.hero h1{font-size:40px;line-height:1.35;font-weight:800;margin:8px 0 16px}
.hero h1 .u{background:linear-gradient(transparent 62%,rgba(255,197,61,.45) 62%)}
.hero p.lead{font-size:18px;color:#dfe4ff;max-width:640px}
.hero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero .note{margin-top:12px;font-size:13px;color:#aeb8ee}
@media(max-width:760px){.hero h1{font-size:28px}.hbrand .t{font-size:26px}}

/* ---------- loop strip ---------- */
.loopstrip{background:var(--royal3);color:#fff;padding:24px 0}
.loopstrip .row{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}
.chip{border:1.5px solid var(--gold);border-radius:999px;padding:9px 20px;font-weight:700;text-align:center}
.chip small{display:block;font-weight:400;font-size:11px;color:#b9c2f2}
.arrow{color:var(--gold);font-size:20px}
.reload{color:var(--mint);font-size:22px;font-weight:800}

/* ---------- sections ---------- */
section.blk{padding:66px 0;background:var(--bg)}
section.blk.alt{background:#fff}
.khead{text-align:center;margin-bottom:40px}
.khead .k{display:inline-block;font-weight:800;color:#fff;background:var(--royal1);
  border-radius:999px;padding:5px 16px;font-size:13px;letter-spacing:.14em}
.khead h2{font-size:28px;margin:16px 0 8px;font-weight:800}
.khead p{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid.g3{grid-template-columns:repeat(3,1fr);max-width:920px;margin:0 auto}
.grid.g2{grid-template-columns:repeat(2,1fr);max-width:820px;margin:0 auto}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid,.grid.g3,.grid.g2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow)}
section.blk .card{background:#fff}
.card .ci{width:44px;height:44px;border-radius:12px;
  background:linear-gradient(150deg,var(--royal1),var(--royal2));color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px}
.card h3{font-size:16px;margin-bottom:7px}
.card p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* eyecatch figure */
.eyecatch{max-width:760px;margin:8px auto 0}
.eyecatch img{margin:0 auto}

/* intro band */
.intro{background:#fff;padding:60px 0}
.intro .wrap{max-width:760px;text-align:center}
.intro h2{font-size:26px;font-weight:800;line-height:1.5;margin-bottom:14px}
.intro h2 span{color:var(--royal1)}
.intro p{color:var(--muted);font-size:16px}

/* highlight (AIレポート橋渡し) */
.bridge{background:linear-gradient(150deg,#26307a,#141e4e);color:#fff;padding:60px 0}
.bridge .wrap{max-width:900px}
.bridge .tag{display:inline-block;background:var(--mint);color:#04352a;font-weight:800;
  font-size:12px;padding:5px 14px;border-radius:999px;letter-spacing:.08em}
.bridge h2{font-size:26px;font-weight:800;margin:16px 0 12px;line-height:1.5}
.bridge h2 em{font-style:normal;color:var(--gold)}
.bridge p{color:#d7ddff}
.bridge .flow{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:26px}
.bridge .fbox{flex:1;min-width:180px;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:16px 18px}
.bridge .fbox b{color:var(--gold);display:block;margin-bottom:4px;font-size:15px}
.bridge .fbox span{font-size:14px;color:#eef1ff;line-height:1.7}
.bridge .far{color:var(--mint);font-size:26px;font-weight:800}
@media(max-width:640px){.bridge .far{transform:rotate(90deg)}}

/* spec band */
.spec{background:linear-gradient(160deg,var(--royal1),var(--royal2));color:#fff;padding:54px 0}
.spec .grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;text-align:center}
@media(max-width:760px){.spec .grid5{grid-template-columns:repeat(2,1fr)}}
.spec .it b{display:block;font-size:15px;color:var(--gold);margin-bottom:4px}
.spec .it span{font-size:13px;color:#dfe4ff}

/* final CTA */
.final{background:var(--royal3);color:#fff;text-align:center;padding:70px 24px}
.final h2{font-size:30px;font-weight:800;margin-bottom:12px}
.final p{color:#cdd5ff;margin-bottom:26px}

/* footer */
footer.site{background:#0f1738;color:#9aa6d8;font-size:13px;padding:34px 0}
footer.site .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
footer.site a{color:#c3ccf2}
footer.site .fnav{display:flex;gap:18px;flex-wrap:wrap}

/* =========================================================
   ドキュメント（操作説明）用コンポーネント
   ========================================================= */
.pagehead{background:linear-gradient(160deg,var(--royal1),var(--royal2));color:#fff;padding:52px 0 44px}
.crumb{font-size:13px;color:#b7c0ec;margin-bottom:12px}
.crumb a:hover{color:#fff}
.pagehead h1{font-size:32px;font-weight:800}
.pagehead .sub{color:#dfe4ff;margin-top:10px;max-width:720px}
.pagehead .steptag{display:inline-block;background:var(--gold);color:#1a2350;font-weight:800;
  font-size:12px;padding:4px 12px;border-radius:999px;margin-bottom:14px;letter-spacing:.08em}

.doc{padding:52px 0 20px;background:#fff}
.doc .wrap{max-width:900px}
.doc h2{font-size:25px;font-weight:800;margin:40px 0 14px;padding-bottom:10px;border-bottom:2px solid var(--line)}
.doc h3{font-size:19.5px;font-weight:800;margin:26px 0 10px;color:var(--royal1)}
.doc p{margin:12px 0;color:#33405f;font-size:17.5px;line-height:1.9}
.doc ul,.doc ol{margin:12px 0 12px 1.3em;color:#33405f;font-size:17.5px}
.doc li{margin:7px 0}
.doc strong{color:var(--ink)}

/* step list */
.steps{list-style:none;margin:20px 0;padding:0;counter-reset:st}
.steps>li{position:relative;padding:0 0 26px 62px;counter-increment:st}
.steps>li:before{content:counter(st);position:absolute;left:0;top:0;width:40px;height:40px;
  background:linear-gradient(150deg,var(--royal1),var(--royal2));color:var(--gold);
  border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px}
.steps>li:after{content:"";position:absolute;left:19px;top:44px;bottom:2px;width:2px;background:var(--line)}
.steps>li:last-child:after{display:none}
.steps .st-t{font-weight:800;font-size:17.5px;margin-bottom:4px}
.steps .st-b{color:var(--muted);font-size:16px;line-height:1.85}

/* callout */
.note{border-left:4px solid var(--gold);background:#fff9e9;border-radius:0 12px 12px 0;
  padding:15px 18px;margin:18px 0;font-size:16px;line-height:1.8;color:#5b4b1e}
.note.info{border-color:var(--royal1);background:#eef2ff;color:#2a3560}
.note.tip{border-color:var(--mint);background:#e7fbf4;color:#0d4d3c}
.note b{display:block;margin-bottom:3px}

/* figure placeholder */
.fig{margin:18px 0;border:1px dashed #c3cbe8;border-radius:12px;background:var(--bg2);
  min-height:130px;display:flex;align-items:center;justify-content:center;color:var(--soft);
  font-size:13px;text-align:center;padding:20px}
.fig.real{border:1px solid var(--line);background:#fff;padding:10px;overflow:hidden;
  flex-direction:column;min-height:0;gap:8px}
.fig.real img{max-width:100%;height:auto;border-radius:8px;border:1px solid #eef1fb}
figcaption{font-size:12.5px;color:var(--soft);text-align:center;margin-top:2px}

/* table */
.doc table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15.5px}
.doc th,.doc td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.doc th{background:var(--bg2);color:var(--royal1)}

/* prev/next + toc */
.pager{display:flex;justify-content:space-between;gap:14px;margin:36px 0 10px;flex-wrap:wrap}
.pager a{flex:1;min-width:200px;border:1px solid var(--line);border-radius:12px;padding:14px 18px;
  background:#fff;box-shadow:var(--shadow)}
.pager a span{display:block;font-size:12px;color:var(--soft)}
.pager a b{color:var(--royal1)}
.toc{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:24px}
@media(max-width:760px){.toc{grid-template-columns:repeat(2,1fr)}}
.toc a{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff;box-shadow:var(--shadow);font-size:14px}
.toc a b{display:block;color:var(--royal1);margin-bottom:2px}
.toc a small{color:var(--soft)}