:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-border: #e3e6eb;
  --color-text: #1f2430;
  --color-text-sub: #5b6472;
  --color-main: #2f6fed;
  --color-main-soft: #eaf1ff;
  --color-accent: #ff8a3d;
  --color-success: #16845b;
  --radius: 14px;
  --max-width: 860px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
}

.top-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 20px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.top-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.top-bar a.brand {
  font-weight: 800;
  font-size: 18px;
  color: var(--color-text);
  text-decoration: none;
}

.top-bar a.brand span {
  color: var(--color-main);
}

.top-bar .toc-link {
  font-size: 13px;
  color: var(--color-main);
  text-decoration: none;
  font-weight: 600;
}

.page-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 20px 80px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 14px;
}

.breadcrumb a { color: var(--color-text-sub); }

.page-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-main);
  background: var(--color-main-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

h1.page-title {
  font-size: 28px;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}

.page-lead {
  color: var(--color-text-sub);
  font-size: 15px;
  margin: 0 0 30px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
}

.card h2 {
  font-size: 18px;
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card h2 .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-main);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  flex: none;
}

.card p { margin: 8px 0; font-size: 14.5px; }

.card ul, .card ol {
  margin: 8px 0;
  padding-left: 22px;
  font-size: 14.5px;
}

.card li { margin-bottom: 6px; }

.note {
  border-left: 4px solid var(--color-main);
  background: var(--color-main-soft);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  margin: 14px 0;
}

.note.warn {
  border-left-color: var(--color-accent);
  background: rgba(255, 138, 61, 0.1);
}

.note.tip {
  border-left-color: var(--color-success);
  background: rgba(22, 132, 91, 0.08);
}

.shot {
  border: 1px dashed #b7bfcc;
  border-radius: 12px;
  background: #fbfbfd;
  padding: 28px 16px;
  text-align: center;
  color: var(--color-text-sub);
  font-size: 13px;
  margin: 14px 0;
}

.shot .shot-icon {
  font-size: 22px;
  display: block;
  margin-bottom: 8px;
}

.shot .shot-label {
  font-weight: 700;
  color: var(--color-text);
  font-size: 13.5px;
}

.screenshot {
  margin: 14px 0;
  padding: 0;
}

.screenshot img {
  display: block;
  max-width: 320px;
  width: 100%;
  margin: 0 auto;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 6px 18px rgba(20, 24, 33, 0.08);
}

.screenshot figcaption {
  text-align: center;
  font-size: 12.5px;
  color: var(--color-text-sub);
  margin-top: 8px;
}

.manual-video {
  margin: 14px 0;
  padding: 0;
}

.manual-video video {
  display: block;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 6px 18px rgba(20, 24, 33, 0.08);
  background: #000;
}

.manual-video figcaption {
  text-align: center;
  font-size: 12.5px;
  color: var(--color-text-sub);
  margin-top: 8px;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: #eef0f4;
  color: var(--color-text-sub);
  margin-right: 6px;
}

.badge.premium { background: rgba(255, 138, 61, 0.15); color: #b85c00; }
.badge.guest { background: #eef0f4; color: var(--color-text-sub); }
.badge.free { background: var(--color-main-soft); color: var(--color-main); }

table.kv {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 10px 0;
}
table.kv th, table.kv td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
table.kv th { width: 34%; color: var(--color-text-sub); font-weight: 600; }

.pager {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.pager a {
  flex: 1;
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--color-text);
  font-size: 14px;
  background: var(--color-surface);
}

.pager a.next { text-align: right; }
.pager .pager-label { display: block; font-size: 11px; color: var(--color-text-sub); margin-bottom: 4px; }
.pager a:hover { border-color: var(--color-main); }

.toc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.toc-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--color-text);
}

.toc-item .num {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-main-soft);
  color: var(--color-main);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.toc-item .toc-title { font-weight: 700; font-size: 15px; margin-bottom: 2px; }
.toc-item .toc-desc { font-size: 13px; color: var(--color-text-sub); }

@media print {
  .top-bar, .pager { display: none; }
}