:root {
  --navy: #0e2a47;
  --navy-2: #163d63;
  --ink: #1b2430;
  --muted: #6b7785;
  --line: #e4e8ee;
  --bg: #f6f8fb;
  --card: #ffffff;
  --accent: #0b6e4f;
  --up: #d23f3f;     /* 日本式：上昇=赤 */
  --down: #1565c0;   /* 下落=青 */
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16,42,71,.06), 0 6px 24px rgba(16,42,71,.05);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
a { color: var(--navy-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }

/* header */
.site-header {
  background: var(--navy);
  position: sticky; top: 0; z-index: 50;
  box-shadow: 0 1px 0 rgba(255,255,255,.06);
}
.header-inner { display: flex; align-items: center; gap: 14px; height: 60px; }
.brand { display: flex; align-items: baseline; gap: 8px; color: #fff; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand-mark {
  background: #fff; color: var(--navy); font-weight: 800;
  border-radius: 6px; padding: 2px 7px; font-size: 13px; letter-spacing: .02em;
}
.brand-name { font-weight: 700; font-size: 15px; }
.search { position: relative; flex: 1; min-width: 0; }
.search input {
  width: 100%; height: 38px; border: 0; border-radius: 8px; padding: 0 12px;
  font-size: 14px; background: rgba(255,255,255,.96);
}
.suggest {
  position: absolute; top: 44px; left: 0; right: 0; background: #fff;
  border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow);
  overflow: hidden; max-height: 360px; overflow-y: auto;
}
.suggest a {
  display: flex; gap: 10px; align-items: baseline; padding: 9px 12px; color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.suggest a:hover { background: var(--bg); text-decoration: none; }
.suggest .s-code { font-weight: 700; color: var(--navy-2); min-width: 48px; }
.suggest .s-sector { margin-left: auto; font-size: 12px; color: var(--muted); }
.header-cta {
  color: #fff; border: 1px solid rgba(255,255,255,.5); border-radius: 8px;
  padding: 7px 12px; font-size: 13px; white-space: nowrap;
}
.header-cta:hover { background: rgba(255,255,255,.12); text-decoration: none; }

/* hero */
.hero { padding: 36px 0 8px; }
.hero h1 { font-size: 26px; margin: 0 0 8px; color: var(--navy); }
.hero .lead { color: var(--muted); margin: 0 0 18px; }
.hero-search input {
  width: 100%; height: 48px; border: 1px solid var(--line); border-radius: 10px;
  padding: 0 16px; font-size: 16px; background: #fff;
}

/* sections */
main { padding: 16px 0 56px; }
h1 { font-size: 24px; }
h2 { font-size: 18px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin: 24px 0 12px; }
.section-head h2 { margin: 0; }
.more { font-size: 13px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; margin: 16px 0; box-shadow: var(--shadow);
}

/* breadcrumb */
.breadcrumb { font-size: 13px; color: var(--muted); margin: 16px 0 4px; }
.breadcrumb a { color: var(--muted); }

/* banner */
.banner-sample {
  background: #fff6e5; border: 1px solid #f3d79a; color: #8a5a00;
  border-radius: 10px; padding: 9px 14px; font-size: 13px; margin: 14px 0;
}

/* stock head */
.stock-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin: 8px 0 4px; flex-wrap: wrap; }
.stock-head h1 { margin: 0; font-size: 24px; color: var(--navy); }
.stock-head .code { font-size: 14px; color: var(--muted); font-weight: 600; margin-left: 6px; }
.stock-head .meta { margin: 4px 0 0; font-size: 14px; }
.price { text-align: right; }
.price-val { font-size: 26px; font-weight: 800; }
.price-chg { display: inline-block; margin-left: 8px; font-weight: 700; }
.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--muted); }

/* metrics */
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 0; }
.metric-grid > div { background: var(--bg); border-radius: 10px; padding: 12px; text-align: center; }
.metric-grid dt { font-size: 12px; color: var(--muted); margin: 0 0 4px; }
.metric-grid dd { margin: 0; font-size: 18px; font-weight: 700; }

/* tags */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  background: #eef3f8; color: var(--navy-2); border-radius: 999px;
  padding: 4px 11px; font-size: 13px; font-weight: 600;
}
.tag:hover { text-decoration: none; background: #e2ebf4; }

/* checklist */
ul.check { margin: 0; padding-left: 0; list-style: none; }
ul.check li { position: relative; padding-left: 24px; margin: 8px 0; }
ul.check li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--accent); font-weight: 800;
}

/* note CTA */
.note-cta { background: linear-gradient(180deg,#fff, #f4f9f6); border-color: #cfe7dc; }
.note-articles { margin: 6px 0 14px; padding-left: 20px; }
.note-articles li { margin: 6px 0; }
.note-empty { color: var(--muted); margin: 4px 0 14px; }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  display: inline-block; border-radius: 10px; padding: 12px 18px; font-weight: 700;
  font-size: 14px; text-align: center; cursor: pointer; border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #095c42; }
.btn-ghost { background: #fff; color: var(--accent); border-color: var(--accent); }

/* subscribe */
.subscribe { background: linear-gradient(180deg,#0e2a47,#163d63); color: #fff; border: 0; }
.subscribe h2 { margin: 0 0 6px; color: #fff; }
.subscribe p { color: rgba(255,255,255,.85); margin: 0 0 12px; }
.subscribe-form { display: flex; gap: 8px; flex-wrap: wrap; }
.subscribe-form input {
  flex: 1; min-width: 220px; height: 46px; border: 0; border-radius: 10px; padding: 0 14px; font-size: 15px;
}
.subscribe-form button {
  height: 46px; border: 0; border-radius: 10px; padding: 0 22px; font-weight: 800;
  font-size: 15px; background: #ffd34d; color: #3a2c00; cursor: pointer;
}
.subscribe-form button:hover { background: #ffc81a; }
.subscribe-form button:disabled { opacity: .6; cursor: default; }
.subscribe-msg { min-height: 20px; margin: 10px 0 0; font-weight: 700; }
.subscribe-msg.ok { color: #b8f3d8; }
.subscribe-msg.ng { color: #ffd0d0; }
.fineprint { font-size: 12px; color: rgba(255,255,255,.7) !important; margin: 8px 0 0 !important; }

/* grids & tables */
.stock-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 10px; }
.stock-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px;
  display: flex; flex-direction: column; gap: 2px; color: var(--ink);
}
.stock-card:hover { text-decoration: none; box-shadow: var(--shadow); transform: translateY(-1px); transition: .12s; }
.sc-code { font-size: 12px; color: var(--muted); font-weight: 700; }
.sc-name { font-weight: 700; }
.sc-sector { font-size: 12px; color: var(--muted); }
.sc-chg { font-weight: 700; font-size: 13px; }

.stock-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.stock-table th, .stock-table td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
.stock-table th { background: var(--navy); color: #fff; font-weight: 600; }
.stock-table .num { text-align: right; }
.stock-table .c-code a { font-weight: 700; }
.stock-table tr:hover td { background: var(--bg); }

/* footer */
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 22px 0; margin-top: 40px; }
.disclaimer { font-size: 12px; color: var(--muted); margin: 0 0 6px; }
.operator { font-size: 13px; color: var(--muted); margin: 0; }

@media (max-width: 600px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .header-cta { display: none; }
  .price { text-align: left; }
  .hero h1 { font-size: 22px; }
}