:root {
  --th-warning: #e0b048;
}

/* オーディエンスNotice */
.th-notice { display: flex; gap: 16px; align-items: flex-start; padding: 22px 26px; background: rgba(85,119,230,0.08); border: 1px solid rgba(85,119,230,0.30); border-radius: 14px; backdrop-filter: blur(6px); }
.th-notice-icon { flex-shrink: 0; width: 36px; height: 36px; background: rgba(85,119,230,0.20); color: var(--th-primary-bright); border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.th-notice-icon svg { width: 18px; height: 18px; }
.th-notice-body h3 { font-size: 15px; font-weight: 800; color: var(--th-primary-bright); margin: 0 0 6px; }
.th-notice-body p { margin: 0; font-size: 14px; line-height: 1.85; color: var(--th-text-sub); }
.th-notice-body a { color: var(--th-primary-bright); font-weight: 700; text-decoration: underline; }
.th-notice-body a:hover { color: #a3b8f5; }

/* ===== インストーラーカード（メイン） ===== */
.th-installer { padding: 80px 0; background: var(--th-bg-main); }
.th-installer-card { position: relative; background: linear-gradient(180deg, var(--th-bg-card) 0%, var(--th-bg-card-2) 100%); border: 1px solid rgba(85,119,230,0.40); border-radius: 20px; padding: 44px; overflow: hidden; box-shadow: 0 20px 50px rgba(0,0,0,0.30), 0 0 60px rgba(85,119,230,0.08); }
.th-installer-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--th-primary) 0%, var(--th-primary-bright) 50%, #a0b8ff 100%); }
.th-installer-card::after { content: ""; position: absolute; top: -100px; right: -100px; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(85,119,230,0.18) 0%, transparent 70%); pointer-events: none; }
.th-installer-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; }
.th-installer-icon { width: 64px; height: 64px; color: var(--th-primary-bright); background: rgba(85,119,230,0.15); border: 1px solid rgba(85,119,230,0.30); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.th-installer-icon svg { width: 32px; height: 32px; }
.th-installer-tag { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: 0.18em; color: var(--th-primary-bright); background: rgba(85,119,230,0.15); padding: 5px 12px; border-radius: 999px; margin-bottom: 12px; }
.th-installer-name { font-size: 28px; font-weight: 900; color: var(--th-text-strong); margin: 0 0 12px; letter-spacing: 0.01em; }
.th-installer-desc { font-size: 15px; line-height: 1.9; color: var(--th-text-sub); margin: 0 0 24px; max-width: 540px; }
.th-installer-meta { list-style: none; padding: 20px 0 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; border-top: 1px solid var(--th-border); }
.th-installer-meta li { display: flex; flex-direction: column; gap: 2px; font-size: 13px; }
.th-installer-meta li span { color: var(--th-text-mute); font-weight: 600; }
.th-installer-meta li strong { color: var(--th-text-strong); font-weight: 700; font-size: 14px; }
.th-installer-action { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.th-installer-btn { padding: 18px 32px; font-size: 16px; }
.th-installer-checksum { font-size: 11.5px; color: var(--th-text-mute); margin: 0; font-family: ui-monospace, "SF Mono", Consolas, monospace; }

/* ===== マニュアル ===== */
.th-manuals { padding: 80px 0; background: var(--th-bg-section); }
.th-manuals-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.th-manual-card { display: flex; flex-direction: column; background: linear-gradient(180deg, var(--th-bg-card) 0%, var(--th-bg-card-2) 100%); border: 1px solid var(--th-border); border-radius: 16px; padding: 32px 28px; transition: transform 0.25s ease, border-color 0.25s ease; }
.th-manual-card:hover { transform: translateY(-4px); border-color: rgba(85,119,230,0.40); }
.th-manual-icon { width: 48px; height: 48px; color: var(--th-primary-bright); background: rgba(85,119,230,0.12); border: 1px solid rgba(85,119,230,0.25); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.th-manual-icon svg { width: 24px; height: 24px; }
.th-manual-card h3 { font-size: 19px; font-weight: 800; color: var(--th-text-strong); margin: 0 0 12px; }
.th-manual-card p { font-size: 14px; line-height: 1.85; color: var(--th-text-sub); margin: 0 0 18px; flex-grow: 1; }
.th-manual-meta { list-style: none; padding: 0; margin: 0 0 20px; display: flex; flex-wrap: wrap; gap: 8px; }
.th-manual-meta li { background: rgba(85,119,230,0.10); border: 1px solid rgba(85,119,230,0.25); color: #b8c9ee; padding: 4px 11px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.th-manual-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.th-manual-btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 16px; border-radius: 999px; font-size: 13px; font-weight: 800; text-decoration: none; transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease; }
.th-manual-btn svg { width: 14px; height: 14px; }
.th-manual-btn-primary { background: linear-gradient(135deg, var(--th-accent) 0%, var(--th-accent-dark) 100%); color: #ffffff; box-shadow: 0 4px 12px rgba(255,140,66,0.30); }
.th-manual-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(255,140,66,0.45); }
.th-manual-btn-secondary { background: rgba(255,255,255,0.06); color: var(--th-text); border: 1px solid var(--th-border-strong); }
.th-manual-btn-secondary:hover { background: rgba(85,119,230,0.18); border-color: rgba(85,119,230,0.45); color: var(--th-primary-bright); }

/* ===== オープンスクリプト ===== */
.th-openscript { padding: 80px 0; background: var(--th-bg-main); }
.th-os-free { display: inline-block; margin-left: 12px; vertical-align: middle; font-size: 13px; font-weight: 800; letter-spacing: 0.06em; color: #ffffff; background: linear-gradient(135deg, var(--th-accent) 0%, var(--th-accent-dark) 100%); padding: 5px 14px; border-radius: 999px; box-shadow: 0 4px 12px rgba(255,140,66,0.30); }
.th-os-card { position: relative; background: linear-gradient(180deg, var(--th-bg-card) 0%, var(--th-bg-card-2) 100%); border: 1px solid rgba(85,119,230,0.40); border-radius: 20px; padding: 44px; overflow: hidden; box-shadow: 0 20px 50px rgba(0,0,0,0.30), 0 0 60px rgba(85,119,230,0.08); }
.th-os-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--th-accent) 0%, var(--th-primary-bright) 60%, #a0b8ff 100%); }
.th-os-card::after { content: ""; position: absolute; top: -100px; right: -100px; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(85,119,230,0.15) 0%, transparent 70%); pointer-events: none; }
.th-os-card-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.55fr 1fr; gap: 40px; align-items: start; }
.th-os-icon { width: 56px; height: 56px; color: var(--th-primary-bright); background: rgba(85,119,230,0.15); border: 1px solid rgba(85,119,230,0.30); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.th-os-icon svg { width: 28px; height: 28px; }
.th-os-card-main h3 { font-size: 24px; font-weight: 900; color: var(--th-text-strong); margin: 12px 0 14px; letter-spacing: 0.01em; }
.th-os-card-main > p { font-size: 15px; line-height: 1.9; color: var(--th-text-sub); margin: 0 0 22px; }
.th-os-points { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.th-os-points li { position: relative; padding-left: 30px; font-size: 14.5px; line-height: 1.8; color: var(--th-text-sub); }
.th-os-points li::before { content: ""; position: absolute; left: 0; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: rgba(95,185,140,0.18); border: 1px solid rgba(95,185,140,0.45); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235fb98c' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: center; background-size: 11px; }
.th-os-points li strong { display: block; color: var(--th-text-strong); font-weight: 800; font-size: 14.5px; margin-bottom: 2px; }
.th-os-card-side { background: rgba(85,119,230,0.06); border: 1px solid var(--th-border); border-radius: 16px; padding: 26px 24px; }
.th-os-side-label { font-size: 12px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; color: var(--th-primary-bright); margin: 0 0 18px; }
.th-os-flow { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0; }
.th-os-flow li { position: relative; display: flex; gap: 14px; padding-bottom: 22px; }
.th-os-flow li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 32px; bottom: 0; width: 2px; background: linear-gradient(180deg, rgba(85,119,230,0.5), rgba(85,119,230,0.12)); }
.th-os-flow li:last-child { padding-bottom: 0; }
.th-os-flow-num { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--th-primary) 0%, var(--th-primary-dark) 100%); color: #ffffff; font-weight: 900; font-size: 15px; display: flex; align-items: center; justify-content: center; position: relative; z-index: 1; box-shadow: 0 4px 10px rgba(85,119,230,0.35); }
.th-os-flow-body { padding-top: 3px; }
.th-os-flow-body strong { display: block; color: var(--th-text-strong); font-weight: 800; font-size: 15px; margin-bottom: 3px; }
.th-os-flow-body span { display: block; color: var(--th-text-sub); font-size: 13px; line-height: 1.7; }
.th-os-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--th-border); }
.th-os-note { position: relative; z-index: 1; margin: 20px 0 0; font-size: 12.5px; line-height: 1.85; color: var(--th-text-mute); }
.th-os-flow-note { margin: 16px 0 0; font-size: 11.5px; line-height: 1.7; color: var(--th-text-mute); }

/* ===== クイックスタート ===== */
.th-steps { padding: 90px 0; background: var(--th-bg-section); }
.th-steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.th-step-card { position: relative; background: linear-gradient(180deg, var(--th-bg-card) 0%, var(--th-bg-card-2) 100%); border: 1px solid var(--th-border); border-radius: 18px; padding: 36px 32px; overflow: hidden; transition: transform 0.25s ease, border-color 0.25s ease; }
.th-step-card:hover { transform: translateY(-3px); border-color: rgba(85,119,230,0.40); }
.th-step-num { font-size: 72px; font-weight: 900; line-height: 1; background: linear-gradient(135deg, var(--th-primary-bright) 0%, #a0b8ff 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 14px; letter-spacing: -0.02em; }
.th-step-card h3 { font-size: 18px; font-weight: 800; color: var(--th-text-strong); margin: 0 0 12px; }
.th-step-card p { font-size: 14px; line-height: 1.85; color: var(--th-text-sub); margin: 0; }
.th-step-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; color: var(--th-primary-bright); font-size: 13px; font-weight: 800; text-decoration: none; transition: gap 0.2s ease; }
.th-step-link svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.th-step-link:hover { gap: 10px; }
.th-step-link:hover svg { transform: translateX(2px); }

/* ===== 動作環境 ===== */
.th-requirements { padding: 90px 0; background: var(--th-bg-section); }
.th-req-table-wrap { background: linear-gradient(180deg, var(--th-bg-card) 0%, var(--th-bg-card-2) 100%); border: 1px solid var(--th-border); border-radius: 16px; overflow: hidden; }
.th-req-table { width: 100%; border-collapse: collapse; }
.th-req-table th, .th-req-table td { padding: 18px 24px; text-align: left; border-bottom: 1px solid var(--th-border); font-size: 14.5px; line-height: 1.8; }
.th-req-table tr:last-child th, .th-req-table tr:last-child td { border-bottom: none; }
.th-req-table th { width: 220px; color: var(--th-text); background: rgba(85,119,230,0.05); font-weight: 800; letter-spacing: 0.04em; }
.th-req-table td { color: var(--th-text-sub); }
.th-req-table td strong { color: var(--th-text-strong); font-weight: 800; }
.th-req-note-inline { font-size: 12.5px; color: var(--th-text-mute); }
.th-req-callout { display: flex; gap: 14px; align-items: flex-start; margin-top: 20px; padding: 18px 22px; background: rgba(224, 176, 72, 0.06); border: 1px solid rgba(224, 176, 72, 0.22); border-radius: 12px; }
.th-req-callout svg { flex-shrink: 0; width: 22px; height: 22px; color: var(--th-warning); margin-top: 2px; }
.th-req-callout p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--th-text-sub); }
.th-req-callout p a { color: var(--th-primary-bright); font-weight: 700; text-decoration: underline; }

/* ===== FAQ ===== */
.th-faq { padding: 90px 0; background: var(--th-bg-main); }
.th-faq-list { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.th-faq-item { background: linear-gradient(180deg, var(--th-bg-card) 0%, var(--th-bg-card-2) 100%); border: 1px solid var(--th-border); border-radius: 14px; overflow: hidden; transition: border-color 0.25s ease; }
.th-faq-item[open] { border-color: rgba(85,119,230,0.40); }
.th-faq-item summary { display: flex; align-items: center; gap: 16px; padding: 20px 24px; cursor: pointer; list-style: none; font-weight: 700; color: var(--th-text-strong); font-size: 15.5px; transition: background 0.2s ease; }
.th-faq-item summary::-webkit-details-marker { display: none; }
.th-faq-item summary:hover { background: rgba(85,119,230,0.04); }
.th-faq-q-icon { flex-shrink: 0; width: 32px; height: 32px; background: rgba(85,119,230,0.18); color: var(--th-primary-bright); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 16px; }
.th-faq-q-text { flex-grow: 1; line-height: 1.6; }
.th-faq-toggle { width: 20px; height: 20px; color: var(--th-text-sub); flex-shrink: 0; transition: transform 0.25s ease; }
.th-faq-item[open] .th-faq-toggle { transform: rotate(180deg); }
.th-faq-a { display: flex; gap: 16px; padding: 0 24px 22px 24px; }
.th-faq-a-icon { flex-shrink: 0; width: 32px; height: 32px; background: rgba(255,140,66,0.18); color: var(--th-accent-bright); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 16px; }
.th-faq-a p { margin: 4px 0 0; line-height: 1.95; color: var(--th-text-sub); font-size: 15px; }
.th-faq-a p strong { color: var(--th-primary-bright); font-weight: 800; }

/* ===== リード回収CTA（オレンジテーマで強調） ===== */
.th-lead-recovery { padding: 80px 0; background: var(--th-bg-section); }
.th-lead-recovery-card { position: relative; background: linear-gradient(135deg, var(--th-accent) 0%, var(--th-accent-dark) 100%); border-radius: 24px; padding: 60px 48px; text-align: center; overflow: hidden; box-shadow: 0 20px 60px rgba(255,140,66,0.40); }
.th-lead-recovery-card::before { content: ""; position: absolute; top: -120px; left: -120px; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.18) 0%, transparent 70%); pointer-events: none; }
.th-lead-recovery-card::after { content: ""; position: absolute; bottom: -100px; right: -80px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%); pointer-events: none; }
.th-lead-recovery-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.th-lead-recovery-card h2 { font-size: 34px; font-weight: 900; color: #ffffff; margin: 0 0 16px; line-height: 1.4; letter-spacing: 0.02em; }
.th-lead-recovery-accent { background: linear-gradient(180deg, #ffffff 0%, #ffe8d6 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.th-lead-recovery-card p { font-size: 15.5px; line-height: 1.9; color: rgba(255,255,255,0.92); margin: 0 0 32px; }
.th-lead-recovery-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.th-lead-recovery-actions .th-btn-primary { background: #ffffff; color: var(--th-accent-dark); box-shadow: 0 12px 30px rgba(0,0,0,0.25); }
.th-lead-recovery-actions .th-btn-primary:hover { background: #fff3e8; box-shadow: 0 18px 38px rgba(0,0,0,0.35); }
.th-lead-recovery-actions .th-btn-secondary { background: rgba(255,255,255,0.18); color: #ffffff; border-color: rgba(255,255,255,0.45); }
.th-lead-recovery-actions .th-btn-secondary:hover { background: rgba(255,255,255,0.28); }

/* ===== Final CTA（お困りのとき） ===== */
.th-final-cta { padding: 90px 0 100px; background: var(--th-bg-main); }
.th-final-cta-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.th-final-cta-card { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; padding: 40px 28px 32px; background: linear-gradient(180deg, var(--th-primary) 0%, var(--th-primary-dark) 100%); border-radius: 18px; text-decoration: none; box-shadow: 0 14px 36px rgba(85,119,230,0.30); border: 1px solid rgba(255,255,255,0.10); transition: transform 0.25s ease, box-shadow 0.25s ease; overflow: hidden; }
.th-final-cta-card::before { content: ""; position: absolute; top: -40px; right: -40px; width: 160px; height: 160px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.18) 0%, transparent 70%); pointer-events: none; }
.th-final-cta-card:hover { transform: translateY(-5px); box-shadow: 0 22px 50px rgba(85,119,230,0.45); }
.th-final-cta-icon { width: 88px; height: 88px; margin-bottom: 20px; display: flex; align-items: center; justify-content: center; position: relative; z-index: 1; }
.th-final-cta-icon svg { width: 100%; height: 100%; filter: drop-shadow(0 6px 12px rgba(0,0,0,0.20)); }
.th-final-cta-card h3 { font-size: 19px; font-weight: 800; color: #ffffff; margin: 0 0 14px; line-height: 1.5; position: relative; z-index: 1; }
.th-final-cta-card p { margin: 0 0 24px; font-size: 14px; line-height: 1.85; color: rgba(255,255,255,0.92); flex-grow: 1; position: relative; z-index: 1; }
.th-final-cta-link { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding-top: 18px; width: 100%; border-top: 1px solid rgba(255,255,255,0.30); font-size: 15px; font-weight: 800; color: #ffffff; position: relative; z-index: 1; }
.th-final-cta-link svg { width: 18px; height: 18px; transition: transform 0.2s ease; }
.th-final-cta-card:hover .th-final-cta-link svg { transform: translateX(4px); }

/* ===== フッター ===== */
.th-footer { padding: 60px 0 28px; background: #06101c; border-top: 1px solid var(--th-border); }
.th-footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; }
.th-footer-brand p { font-size: 13.5px; line-height: 1.85; color: var(--th-text-mute); margin: 0; max-width: 320px; }
.th-footer-col h4 { color: var(--th-text-strong); font-size: 12.5px; font-weight: 800; letter-spacing: 0.16em; margin: 0 0 18px; text-transform: uppercase; }
.th-footer-col ul { list-style: none; padding: 0; margin: 0; }
.th-footer-col li { margin-bottom: 10px; }
.th-footer-col a { font-size: 14px; color: var(--th-text-sub); text-decoration: none; transition: color 0.2s ease, padding-left 0.2s ease; }
.th-footer-col a:hover { color: var(--th-primary-bright); padding-left: 4px; }
.th-footer-link-current { color: var(--th-primary-bright) !important; font-weight: 700; }
.th-footer-bottom { margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--th-border); text-align: center; font-size: 12.5px; color: var(--th-text-mute); }

::selection { background: var(--th-accent); color: #ffffff; }

/* ===== ページ内ナビ（頭出し／スクロールスパイ） ===== */
.th-jumpnav {
  position: sticky;
  top: 72px;
  z-index: 90;
  background: rgba(15, 28, 47, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--th-border);
  border-bottom: 1px solid var(--th-border);
  box-shadow: 0 6px 20px rgba(0,0,0,0.22);
}
.th-jumpnav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.th-jumpnav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex: 1 1 auto;
  align-items: center;
}
.th-jumpnav-list::-webkit-scrollbar { display: none; }
.th-jumpnav-link {
  display: inline-block;
  white-space: nowrap;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--th-text-sub);
  text-decoration: none;
  border-radius: 8px;
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
}
.th-jumpnav-link:hover { color: var(--th-primary-bright); background: rgba(85,119,230,0.08); }
.th-jumpnav-link.is-active {
  color: var(--th-primary-bright);
  background: rgba(85,119,230,0.12);
}
.th-jumpnav-link.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--th-primary-bright);
}
.th-jumpnav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
  white-space: nowrap;
  padding: 9px 16px;
  font-size: 13.5px;
  font-weight: 800;
  color: #ffffff;
  text-decoration: none;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--th-primary) 0%, var(--th-primary-dark) 100%);
  box-shadow: 0 4px 14px rgba(85,119,230,0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.th-jumpnav-cta svg { width: 16px; height: 16px; }
.th-jumpnav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(85,119,230,0.5); }

/* 固定ヘッダー(72px)＋頭出しナビ(56px)分、見出しが隠れないようオフセット */
#installer, #manuals, #openscript, #steps, #requirements, #faq, #thumgy-contact {
  scroll-margin-top: 140px;
}

/* ===== レスポンシブ ===== */
@media (max-width: 1080px) {
  .th-header-cta span { display: none; }
  .th-header-cta { padding: 10px 14px; }
  .th-header-user-label { display: none; }
  .th-header-user { width: 40px; padding: 0; justify-content: center; border-radius: 50%; }
}
@media (max-width: 960px) {
  body { padding-top: 64px; }
  .th-header-nav-desktop { display: none; }
  .th-header-nav-mobile { display: block; }
  .th-header-nav-mobile .th-header-menu { flex-direction: column; gap: 4px; }
  .th-header-nav-mobile .th-header-item { width: 100%; }
  .th-header-nav-mobile .th-header-link { padding: 14px 16px; width: 100%; justify-content: space-between; font-size: 16px; border-bottom: 1px solid var(--th-border); border-radius: 0; display: flex; }
  .th-header-nav-mobile .th-header-submenu { position: static !important; transform: none !important; min-width: auto; opacity: 1 !important; visibility: visible !important; padding: 8px 0 8px 16px; margin-top: 0; background: rgba(13, 25, 41, 0.5); backdrop-filter: none; border: none; box-shadow: none; display: none; }
  .th-header-nav-mobile .th-header-item-dropdown.th-header-item-open .th-header-submenu { display: block !important; }
  .th-header-nav-mobile .th-header-item-dropdown.th-header-item-open .th-header-chevron { transform: rotate(180deg); }
  .th-header-nav-mobile .th-header-submenu a { padding: 10px 14px; display: block; }
  .th-header-nav-mobile .th-header-submenu li { list-style: none; }
  .th-header-nav-mobile .th-submenu-title { color: var(--th-text-strong); }
  .th-header-nav-mobile .th-submenu-desc { color: var(--th-text-sub); }
  .th-header-nav-mobile .th-header-item-mobile-cta, .th-header-nav-mobile .th-header-item-mobile-login { display: block; }

  .th-installer-grid { grid-template-columns: 1fr; gap: 32px; }
  .th-installer-action { align-items: stretch; }
  .th-installer-btn { width: 100%; }
  .th-installer-card { padding: 32px 28px; }
  .th-manuals-grid, .th-steps-grid, .th-final-cta-grid { grid-template-columns: 1fr; }
  .th-os-card-grid { grid-template-columns: 1fr; gap: 28px; }
  .th-os-card { padding: 32px 28px; }
  .th-footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .th-section-head h2 { font-size: 30px; }
  .th-page-hero-title { font-size: 34px; }
  .th-lead-recovery-card h2 { font-size: 26px; }
  .th-lead-recovery-card { padding: 44px 28px; }

  /* 頭出しナビ：固定ヘッダーが64pxになるため位置とオフセットを調整 */
  .th-jumpnav { top: 64px; }
  .th-jumpnav-inner { padding: 0 16px; gap: 10px; }
  #installer, #manuals, #openscript, #steps, #requirements, #faq, #thumgy-contact { scroll-margin-top: 124px; }
}
@media (max-width: 640px) {
  .th-page-hero { padding: 40px 0 52px; }
  .th-page-hero-title { font-size: 28px; }
  .th-installer-meta { grid-template-columns: 1fr; }
  .th-section-head h2 { font-size: 26px; }
  .th-page-hero-subtitle { font-size: 14.5px; }
  .th-installer-name { font-size: 22px; }
  .th-req-table th, .th-req-table td { padding: 14px 16px; font-size: 13.5px; display: block; width: auto; }
  .th-req-table th { background: rgba(85,119,230,0.10); }
  .th-footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .th-notice { flex-direction: column; gap: 12px; padding: 20px; }
  .th-lead-recovery-actions { flex-direction: column; }
  .th-lead-recovery-actions .th-btn { width: 100%; }
  .th-os-actions { flex-direction: column; }
  .th-os-actions .th-btn { width: 100%; }
  .th-installer, .th-manuals, .th-openscript, .th-steps, .th-requirements, .th-faq, .th-lead-recovery, .th-final-cta { padding: 60px 0; }
}
@media (max-width: 480px) {
  .th-header-logo-text { font-size: 16px; }
  .th-header-cta { padding: 9px 14px; font-size: 13px; }
  /* ラベルは隠さず（何を落とすか明確に保つ）、サイズだけ詰める */
  .th-jumpnav-cta { padding: 8px 12px; font-size: 12.5px; gap: 5px; }
  .th-jumpnav-cta svg { width: 15px; height: 15px; }
  .th-jumpnav-link { padding: 8px 11px; font-size: 13.5px; }
}