:root {
  --bg:        #f7f5f0;
  --navy:      #1c1c2e;
  --color-accent: #C0634C;
  --orange-lt: #f5a673;
  --white:     #ffffff;
  --gray:      #6b6b7b;
  --gray-lt:   #e8e6e0;
  --font-en:   'Syne', sans-serif;
  --font-ja:   'Zen Kaku Gothic New', sans-serif;
  --font-hero: 'Dela Gothic One', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
section[id], div[id] { scroll-margin-top: 70px; }
body { background: var(--bg); color: var(--navy); font-family: var(--font-ja); font-size: 16px; line-height: 1.7; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }

/* ─── HEADER ─── */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; display: flex; align-items: center; justify-content: flex-start; gap: 24px; padding: 18px 40px; background: rgba(247,245,240,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-lt); }
.header-logo { font-family: var(--font-en); font-weight: 800; font-size: 1.25rem; letter-spacing: 0.08em; color: var(--navy); }
.header-logo span { color: var(--color-accent); }
.header-nav { display: flex; gap: 32px; font-family: var(--font-en); font-size: 0.85rem; font-weight: 600; letter-spacing: 0.05em; margin-left: auto; }
.header-nav a { opacity: 0.6; transition: opacity .2s, color .2s; }
.header-nav a:hover { opacity: 1; color: var(--color-accent); }
.header-cta { background: var(--navy); color: var(--white); font-family: var(--font-ja); font-size: 0.82rem; font-weight: 700; padding: 10px 22px; border-radius: 4px; transition: background .2s; }
.header-cta:hover { background: var(--color-accent); }
.header-menu { position: relative; }
.header-menu-btn { display: flex; flex-direction: column; align-items: flex-end; justify-content: center; gap: 5px; background: none; border: 1.5px solid rgba(28,28,46,0.2); border-radius: 4px; cursor: pointer; padding: 8px 10px; flex-shrink: 0; }
.header-menu-btn span { display: block; height: 2px; background: var(--navy); border-radius: 1px; transition: transform 0.25s ease, opacity 0.2s ease, width 0.2s ease; }
.header-menu-btn span:nth-child(1) { width: 20px; }
.header-menu-btn span:nth-child(2) { width: 12px; }
.header-menu-btn span:nth-child(3) { width: 20px; }
.header-menu.open .header-menu-btn span { width: 20px; }
.header-menu.open .header-menu-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header-menu.open .header-menu-btn span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header-menu.open .header-menu-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.header-menu-dropdown { position: absolute; top: calc(100% + 10px); right: 0; background: var(--white); border: 1px solid var(--gray-lt); border-radius: 4px; box-shadow: 0 8px 24px rgba(28,28,46,0.12); min-width: 210px; display: none; flex-direction: column; overflow: hidden; z-index: 200; }
.header-menu-dropdown.open { display: flex; }
.header-menu-parent-btn { width: 100%; display: flex; align-items: center; justify-content: space-between; font-family: var(--font-ja); font-size: 0.88rem; font-weight: 700; color: var(--navy); padding: 14px 20px; border: none; border-bottom: 1px solid var(--gray-lt); background: none; cursor: pointer; transition: background 0.15s, color 0.15s; }
.header-menu-parent-btn:hover { background: var(--bg); color: var(--color-accent); }
.header-menu-arrow { flex-shrink: 0; opacity: 0.5; transition: transform 0.2s; }
.header-menu-parent.open .header-menu-arrow { transform: rotate(180deg); }
.header-menu-children { display: flex; flex-direction: column; margin: 4px 16px 8px 16px; }
.hm-group { display: flex; align-items: flex-start; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--gray-lt); }
.hm-group:last-child { border-bottom: none; }
.hm-cat { flex-shrink: 0; width: 74px; font-family: var(--font-ja); font-size: 0.68rem; font-weight: 700; color: var(--color-accent); letter-spacing: 0.04em; padding-top: 10px; }
.hm-links { flex: 1; display: flex; flex-direction: column; border-left: 2px solid rgba(192,99,76,0.3); }
.header-menu-children a { display: flex; align-items: center; gap: 8px; white-space: nowrap; font-family: var(--font-ja); font-size: 0.8rem; font-weight: 600; color: var(--navy); opacity: 0.75; padding: 8px 12px; border-bottom: 1px solid var(--gray-lt); transition: color 0.15s, opacity 0.15s; }
.header-menu-children a svg { flex-shrink: 0; color: var(--color-accent); opacity: 0.8; }
.hm-links a:last-child { border-bottom: none; }
.header-menu-children a:hover { color: var(--color-accent); opacity: 1; }
.header-menu-item { font-family: var(--font-ja); font-size: 0.88rem; font-weight: 700; color: var(--navy); padding: 14px 20px; border-top: 1px solid var(--gray-lt); transition: background 0.15s, color 0.15s; }
.header-menu-item:hover { background: var(--bg); color: var(--color-accent); }

/* ─── HERO ─── */
.hero { min-height: min(72vh, 640px); display: flex; align-items: center; padding: 72px 40px 32px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(28,28,46,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(28,28,46,0.04) 1px, transparent 1px); background-size: 48px 48px; pointer-events: none; }
.hero::after { content: ''; position: absolute; top: -200px; right: -200px; width: 700px; height: 700px; border-radius: 50%; background: radial-gradient(circle, rgba(192,99,76,0.12) 0%, transparent 70%); pointer-events: none; }
.hero-inner { max-width: 1100px; margin: 0 auto; width: 100%; position: relative; z-index: 1; }
.hero-left { grid-column: 1; }
.hero-report { grid-column: 2; align-self: center; background: var(--white); border-radius: 10px; box-shadow: 0 12px 40px rgba(28,28,46,0.14), 0 2px 8px rgba(28,28,46,0.06); padding: 14px; width: 100%; transform: scale(0.82); transform-origin: top center; animation: float 4s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: scale(0.82) translateY(0); } 50% { transform: scale(0.82) translateY(-8px); } }
.report-header { font-family: var(--font-en); font-size: 0.58rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray); margin-bottom: 8px; padding-bottom: 7px; border-bottom: 1px solid var(--gray-lt); }
.report-body { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; gap: 8px; }
.report-rows { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.report-row { display: flex; align-items: center; justify-content: space-between; }
.report-row-label { font-size: 0.65rem; font-weight: 500; color: var(--gray); }
.report-row-label.critical { color: var(--color-accent); font-weight: 700; }
.report-row-count { font-family: var(--font-en); font-weight: 800; color: var(--navy); font-size: 0.7rem; }
.report-row-count.critical { color: var(--color-accent); }
.report-chart { position: relative; width: 40px; height: 40px; flex-shrink: 0; }
.report-chart svg { transform: rotate(-90deg); }
.report-chart-total { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.report-chart-num { font-family: var(--font-en); font-size: 0.65rem; font-weight: 800; color: var(--navy); line-height: 1; }
.report-chart-label { font-size: 0.4rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--gray); margin-top: 1px; }
.report-status { padding: 6px 0; border-top: 1px solid var(--gray-lt); margin-bottom: 6px; }
.report-status-label { font-family: var(--font-en); font-size: 0.52rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray); margin-bottom: 3px; }
.report-status-value { display: flex; align-items: center; gap: 4px; font-family: var(--font-en); font-size: 0.7rem; font-weight: 700; color: #388e3c; }
.report-status-sub { font-size: 0.55rem; color: var(--gray); margin-top: 1px; }
.report-bugs { display: flex; flex-direction: column; gap: 0; }
.report-bugs-label { font-family: var(--font-en); font-size: 0.52rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray); margin-bottom: 4px; }
.report-bug { display: flex; align-items: flex-start; justify-content: space-between; gap: 4px; padding: 4px 0; border-bottom: 1px solid var(--gray-lt); }
.report-bug:last-of-type { border-bottom: none; }
.report-bug-id { font-family: var(--font-en); font-size: 0.5rem; font-weight: 700; color: var(--gray); }
.report-bug-title { font-size: 0.6rem; color: var(--navy); font-weight: 500; margin-top: 1px; line-height: 1.3; }
.report-bug-badge { font-size: 0.5rem; font-weight: 700; padding: 1px 4px; border-radius: 2px; flex-shrink: 0; margin-top: 1px; white-space: nowrap; }
.report-bug-badge.critical { background: rgba(192,99,76,0.12); color: var(--color-accent); border: 1px solid rgba(192,99,76,0.3); }
.report-bug-badge.high { background: rgba(28,28,46,0.06); color: var(--navy); border: 1px solid rgba(28,28,46,0.15); }
.report-bug-badge.medium { background: rgba(107,107,123,0.08); color: var(--gray); border: 1px solid rgba(107,107,123,0.2); }
.report-more { font-size: 0.55rem; color: var(--gray); margin-top: 4px; }

.hero-label { font-family: var(--font-en); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.2em; color: var(--color-accent); text-transform: uppercase; margin-bottom: 16px; display: flex; align-items: center; gap: 12px; }
.hero-label::before { content: ''; display: block; width: 32px; height: 2px; background: var(--color-accent); }
.hero-heading-top { font-family: var(--font-ja); font-weight: 800; font-size: clamp(2.4rem, 5vw, 4.2rem); letter-spacing: 0.03em; color: var(--navy); line-height: 1.2; margin-bottom: 4px; }
.hero-heading { font-family: var(--font-ja); font-weight: 800; font-size: clamp(2.4rem, 5vw, 4.2rem); letter-spacing: 0.03em; color: var(--navy); line-height: 1.25; margin-bottom: 16px; }
.hero-heading .accent { color: var(--color-accent); position: relative; display: inline-block; }
.hero-heading .accent::after { content: ''; position: absolute; bottom: 4px; left: 0; right: 0; height: 4px; background: var(--color-accent); opacity: 0.3; border-radius: 2px; }
.hero-sub { font-family: var(--font-ja); font-size: clamp(1rem, 2vw, 1.25rem); font-weight: 500; color: var(--navy); opacity: 0.75; margin: 28px 0 12px; line-height: 2.2; letter-spacing: 0.06em; }
.hero-sub strong { color: var(--navy); opacity: 1; font-weight: 700; }
.hero-note { font-size: 0.88rem; color: var(--gray); margin-bottom: 44px; line-height: 2.2; letter-spacing: 0.04em; border-left: 3px solid var(--color-accent); padding-left: 16px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }
.btn-main { background: var(--color-accent); color: var(--white); font-family: var(--font-ja); font-weight: 700; font-size: 0.95rem; padding: 16px 36px; border-radius: 4px; border: none; cursor: pointer; transition: background .2s, transform .15s; display: inline-block; }
.btn-main:hover { background: #a5503c; transform: translateY(-2px); }
.btn-sub { background: transparent; color: var(--navy); font-family: var(--font-ja); font-weight: 700; font-size: 0.95rem; padding: 16px 36px; border-radius: 4px; border: 2px solid var(--navy); transition: all .2s; display: inline-block; }
.btn-sub:hover { background: var(--navy); color: var(--white); }

/* 自社ツール → ツール一覧 CTA（このボタンだけ） */
.btn-tools { position: relative; isolation: isolate; overflow: hidden; display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-ja); font-weight: 700; font-size: 0.95rem; color: var(--white); padding: 15px 40px; border-radius: 999px; background: linear-gradient(135deg, #cd7059 0%, var(--color-accent) 52%, #a5503c 135%); background-size: 180% 180%; background-position: 0% 50%; box-shadow: 0 6px 18px rgba(192,99,76,0.28); transition: background-position .5s ease, box-shadow .25s ease, transform .15s ease; }
.btn-tools::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(110deg, transparent 25%, rgba(255,255,255,0.30) 50%, transparent 75%); transform: translateX(-130%); transition: transform .6s ease; }
.btn-tools:hover { background-position: 100% 50%; box-shadow: 0 10px 28px rgba(192,99,76,0.32); transform: translateY(-2px); }
.btn-tools:hover::before { transform: translateX(130%); }
.btn-tools-arrow { display: inline-flex; transition: transform .25s ease; }
.btn-tools:hover .btn-tools-arrow { transform: translateX(5px); }
.hero-stat { display: flex; gap: 56px; align-items: flex-start; margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--gray-lt); justify-content: center; }
.stat-item { display: flex; align-items: flex-start; gap: 12px; }
.stat-icon { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.stat-num { font-family: var(--font-hero); font-size: 1.6rem; font-weight: 400; color: var(--navy); line-height: 1; white-space: nowrap; }
.stat-num span { color: var(--color-accent); font-size: 1rem; }
.stat-label { font-size: 0.75rem; color: var(--gray); margin-top: 4px; font-weight: 500; line-height: 1.4; }

/* ─── HERO DECOR ─── */
.hero-decor { position: absolute; top: 0; right: 0; bottom: 0; width: 48%; display: flex; flex-direction: column; justify-content: center; gap: 18px; padding: 0 64px; pointer-events: none; z-index: 0; overflow: hidden; }
.hero-decor-item { font-family: 'Courier New', monospace; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; white-space: nowrap; display: flex; align-items: center; gap: 10px; opacity: 0; animation: decor-fade 0.6s ease forwards; }
.hero-decor-item:nth-child(1) { animation-delay: 0.6s; }
.hero-decor-item:nth-child(2) { animation-delay: 0.75s; }
.hero-decor-item:nth-child(3) { animation-delay: 0.9s; }
.hero-decor-item:nth-child(4) { animation-delay: 1.05s; }
.hero-decor-item:nth-child(5) { animation-delay: 1.2s; }
.hero-decor-item:nth-child(6) { animation-delay: 1.35s; }
.hero-decor-item:nth-child(7) { animation-delay: 1.5s; }
@keyframes decor-fade { from { opacity: 0; transform: translateX(12px); } to { opacity: 1; transform: translateX(0); } }
.decor-id { color: var(--gray); opacity: 0.55; font-size: 0.68rem; }
.decor-text { color: var(--navy); opacity: 0.5; font-size: 0.72rem; }
.decor-badge { font-size: 0.58rem; font-weight: 700; padding: 1px 6px; border-radius: 2px; }
.decor-badge.critical { color: var(--color-accent); border: 1px solid var(--color-accent); opacity: 0.55; }
.decor-badge.high { color: var(--navy); border: 1px solid var(--navy); opacity: 0.45; }
.decor-badge.medium { color: var(--gray); border: 1px solid var(--gray); opacity: 0.45; }
.decor-badge.pass { color: #388e3c; border: 1px solid #388e3c; opacity: 0.55; }

/* ─── ABOUT BRIEF ─── */
.about-brief { background: var(--white); border-bottom: 1px solid var(--gray-lt); padding: 48px 40px; text-align: center; }
.about-brief-inner { max-width: 680px; margin: 0 auto; }
.about-brief-title { font-family: var(--font-en); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 20px; }
.about-brief-lead { font-size: 1.05rem; font-weight: 700; color: var(--navy); line-height: 1.8; margin-bottom: 24px; }
.about-brief-services { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 24px; }
.about-brief-service { font-size: 0.85rem; font-weight: 700; color: var(--navy); padding: 6px 18px; border: 1.5px solid rgba(28,28,46,0.25); border-radius: 2px; }
.about-brief-foot { font-size: 0.9rem; color: var(--gray); }
.about-brief-supported { border-top: 1px solid var(--gray-lt); margin-top: 32px; padding-top: 28px; display: flex; align-items: center; gap: 40px; max-width: 680px; margin-left: auto; margin-right: auto; }

/* ─── SUPPORTED BY (legacy — kept for ref) ─── */
.supported-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; gap: 40px; }
.supported-label { font-family: var(--font-en); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gray); opacity: 0.6; flex-shrink: 0; }
.supported-divider { width: 1px; height: 24px; background: var(--gray-lt); flex-shrink: 0; }
.supported-tags { display: flex; gap: 8px; flex-wrap: nowrap; }
.supported-tag { font-family: var(--font-en); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; color: var(--navy); opacity: 0.5; padding: 5px 10px; border: 1px solid var(--gray-lt); border-radius: 2px; white-space: nowrap; }

/* ─── MARQUEE ─── */
.marquee-wrap { overflow: hidden; background: var(--navy); padding: 14px 0; border-top: 2px solid var(--color-accent); border-bottom: 2px solid var(--color-accent); }
.marquee { display: flex; white-space: nowrap; animation: marquee 22s linear infinite; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee-item { font-family: var(--font-en); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--white); padding: 0 28px; opacity: 0.7; }
.marquee-item.hi { color: var(--color-accent); opacity: 1; }

/* ─── SECTION 共通 ─── */
.section { padding: 72px 40px; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-tag { font-family: var(--font-en); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.section-tag::before { content: ''; display: block; width: 24px; height: 2px; background: var(--color-accent); }
.section-title { font-family: var(--font-en); font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; color: var(--navy); margin-bottom: 12px; line-height: 1.2; }
.section-title .hl { color: var(--color-accent); }
.section-desc { font-size: 0.95rem; color: var(--gray); max-width: 520px; line-height: 1.8; margin-bottom: 56px; }

/* ─── PROBLEMS ─── */
.problems-section { background: var(--white); border-top: 1px solid var(--gray-lt); padding: 56px 40px; }
.problems-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 56px; }
.problem-card { background: var(--bg); border: 1px solid var(--gray-lt); border-left: 3px solid var(--color-accent); padding: 24px; display: flex; flex-direction: row; align-items: flex-start; gap: 14px; }
.problem-icon { color: var(--navy); opacity: 0.5; flex-shrink: 0; padding-top: 2px; }
.problem-text { font-family: var(--font-ja); font-size: 0.92rem; font-weight: 700; color: var(--navy); line-height: 1.6; }
.problems-cta { margin-top: 36px; text-align: center; font-family: var(--font-ja); font-size: 1.1rem; font-weight: 700; color: var(--color-accent); }

/* ─── FIT ─── */
.fit-section { background: var(--bg); border-top: 1px solid var(--gray-lt); padding: 56px 40px; }
.fit-list { display: flex; flex-direction: column; margin-top: 56px; max-width: 640px; }
.fit-item { display: flex; align-items: center; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--gray-lt); }
.fit-item:first-child { border-top: 1px solid var(--gray-lt); }
.fit-check { font-family: var(--font-en); font-size: 1.2rem; font-weight: 800; color: var(--color-accent); flex-shrink: 0; width: 28px; }
.fit-text { font-family: var(--font-ja); font-size: 1.05rem; font-weight: 700; color: var(--navy); }
.fit-cta { margin-top: 40px; font-size: 0.95rem; font-weight: 700; color: var(--gray); }
.fit-btn { display: inline-block; margin-top: 20px; }

/* ─── SERVICES ─── */
.services-section { background: var(--white); border-top: 1px solid var(--gray-lt); padding: 60px 40px; }
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 56px; }
.service-card { background: var(--bg); padding: 44px 36px; border: 1px solid var(--gray-lt); transition: transform .2s, box-shadow .2s, border-color .2s; position: relative; overflow: hidden; display: flex; flex-direction: column; color: inherit; text-decoration: none; cursor: pointer; }
.service-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.service-header .service-icon { flex-shrink: 0; margin-bottom: 0; }
.service-header .service-title { margin: 0; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--color-accent); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.service-card:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(28,28,46,0.1); border-color: var(--color-accent); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { margin-bottom: 20px; display: block; color: var(--color-accent); }
.service-title { font-family: var(--font-ja); font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; line-height: 1.5; }
.service-body { font-size: 0.85rem; color: var(--gray); line-height: 1.9; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 20px; }
.service-tag { font-size: 0.72rem; font-weight: 700; padding: 3px 10px; background: var(--white); border: 1px solid var(--gray-lt); border-radius: 2px; color: var(--gray); }
.service-card-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; padding-left: 10px; border-left: 2px solid var(--color-accent); font-size: 0.88rem; font-weight: 700; color: var(--navy); }
.service-card-link span { display: inline-block; transition: transform .2s ease; }
.service-card:hover .service-card-link span { transform: translateX(4px); }
.coverage-block { margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--gray-lt); }
.coverage-title { font-family: var(--font-en); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray); margin-bottom: 16px; }
.coverage-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.coverage-tag { font-size: 0.85rem; font-weight: 700; padding: 8px 18px; background: var(--bg); border: 1px solid var(--gray-lt); color: var(--navy); border-radius: 2px; }

/* ─── CASE ─── */
.case-section { background: var(--bg); border-top: 1px solid var(--gray-lt); padding: 60px 40px; }
.case-layout { margin-top: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.case-story { position: relative; padding-left: 32px; }
.case-story::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--color-accent), rgba(192,99,76,0.1)); }
.case-step { position: relative; padding-bottom: 36px; }
.case-step:last-child { padding-bottom: 0; }
.case-step::before { content: ''; position: absolute; left: -37px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: var(--color-accent); border: 2px solid var(--bg); }
.case-step-label { font-family: var(--font-en); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 8px; }
.case-step-title { font-family: var(--font-ja); font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.case-step-body { font-size: 0.85rem; color: var(--gray); line-height: 1.8; }
.case-step-list { list-style: none; display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.case-step-list li { font-size: 0.85rem; color: var(--gray); padding-left: 14px; position: relative; line-height: 1.6; }
.case-step-list li::before { content: '–'; position: absolute; left: 0; color: var(--color-accent); }
.case-bugs { display: flex; flex-direction: column; gap: 12px; }
.bug-card { background: var(--white); border: 1px solid var(--gray-lt); border-left: 3px solid var(--color-accent); padding: 16px 20px; font-family: 'Courier New', monospace; }
.bug-id { font-size: 0.72rem; font-weight: 700; color: var(--color-accent); margin-bottom: 4px; letter-spacing: 0.05em; }
.bug-title { font-size: 0.9rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.bug-meta { display: flex; gap: 8px; }
.bug-badge { font-size: 0.68rem; font-weight: 700; padding: 2px 8px; border-radius: 2px; }
.bug-badge.critical { background: rgba(192,99,76,0.12); color: var(--color-accent); border: 1px solid rgba(192,99,76,0.3); }
.bug-badge.high { background: rgba(28,28,46,0.06); color: var(--navy); border: 1px solid rgba(28,28,46,0.15); }
.bug-badge.status { background: #e8f5e9; color: #388e3c; border: 1px solid #c8e6c9; }
.case-note { margin-top: 40px; font-size: 0.75rem; color: var(--gray); opacity: 0.7; text-align: center; }

/* ─── FLOW ─── */
.flow-section { background: var(--white); border-top: 1px solid var(--gray-lt); padding: 60px 40px; }
.flow-list { margin-top: 48px; max-width: 640px; display: flex; flex-direction: column; }
.flow-item { display: flex; gap: 28px; align-items: flex-start; }
.flow-num { font-family: var(--font-en); font-size: 1.5rem; font-weight: 800; color: var(--color-accent); flex-shrink: 0; width: 48px; line-height: 1; padding-top: 2px; }
.flow-body { flex: 1; padding-bottom: 8px; }
.flow-title { font-family: var(--font-ja); font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.flow-desc { font-size: 0.85rem; color: var(--gray); line-height: 1.8; }
.flow-arrow { font-size: 1.2rem; color: var(--color-accent); opacity: 0.4; padding: 8px 0 8px 20px; }

/* ─── DO/DONT ─── */
.dodont-section { background: var(--bg); border-top: 1px solid var(--gray-lt); padding: 80px 40px; }
.dodont-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 48px; }
.dodont-col { padding: 40px; }
.dodont-col.dont { background: var(--white); border: 1px solid var(--gray-lt); }
.dodont-col.do { background: var(--navy); border: 1px solid var(--navy); }
.dodont-label { font-family: var(--font-ja); font-size: 0.85rem; font-weight: 700; margin-bottom: 24px; letter-spacing: 0.05em; }
.dodont-col.dont .dodont-label { color: var(--gray); }
.dodont-col.do .dodont-label { color: var(--orange-lt); }
.dodont-list { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.dodont-list li { font-size: 0.9rem; line-height: 1.6; }
.dodont-col.dont .dodont-list li { color: var(--gray); text-decoration: line-through; text-decoration-color: rgba(107,107,123,0.4); }
.dodont-col.do .dodont-list li { color: rgba(255,255,255,0.85); }
.dodont-note { margin-top: 36px; font-size: 0.88rem; color: var(--gray); text-align: center; font-weight: 700; }

/* ─── WHY NOW ─── */
.why-section { background: var(--white); border-top: 1px solid var(--gray-lt); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 56px; }
.why-card { background: var(--bg); padding: 36px 32px; border: 1px solid var(--gray-lt); display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 14px; row-gap: 10px; align-items: center; }
.why-card-num { font-family: var(--font-en); font-size: 1.6rem; font-weight: 800; color: rgba(28,28,46,0.15); line-height: 1; grid-column: 1; grid-row: 1; }
.why-card-num span { color: var(--color-accent); }
.why-card-title { font-family: var(--font-ja); font-size: 1rem; font-weight: 700; color: var(--navy); line-height: 1.5; grid-column: 2; grid-row: 1; }
.why-card-body { font-size: 0.85rem; color: var(--gray); line-height: 1.9; grid-column: 1 / -1; grid-row: 2; }

/* ─── TOOLS ─── */
.tools-section { background: var(--bg); border-top: 1px solid var(--gray-lt); }
.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; }
.tools-grid .tool-card:nth-last-child(1):nth-child(3n+1) { grid-column: 1 / -1; }
.tool-card { background: var(--white); border: 1px solid var(--gray-lt); padding: 32px 28px; border-radius: 2px; display: flex; flex-direction: column; gap: 10px; transition: box-shadow .2s; position: relative; }
.tool-ribbon { align-self: flex-start; font-family: var(--font-en); font-size: 0.58rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 8px; border-radius: 2px; color: var(--white); }
.tool-ribbon.reference { background: var(--navy); }
.tool-ribbon.tool { background: var(--color-accent); }
.tool-card:hover { box-shadow: 0 12px 32px rgba(192,99,76,0.18), 0 2px 8px rgba(28,28,46,0.06); background: #fff4f0; border-color: var(--color-accent); }
.tool-card.eigo:hover { background: #ffede6; }
.tool-card-top { display: flex; align-items: center; gap: 12px; }
.tool-icon-wrap { color: var(--navy); opacity: 0.6; }
.tool-name { font-family: var(--font-ja); font-size: 0.95rem; font-weight: 700; color: var(--navy); }
.tool-desc { font-size: 0.82rem; color: var(--gray); line-height: 1.8; flex: 1; }
.tool-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 0.8rem; font-weight: 700; color: var(--navy); padding-left: 10px; border-left: 2px solid var(--color-accent); align-self: flex-start; }
.tool-card.eigo { background: #fff8f4; border-color: var(--color-accent); border-top: 3px solid var(--color-accent); }

/* ─── COLUMN ─── */
.column-section { background: var(--bg); border-top: 1px solid var(--gray-lt); }
.column-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; }
.column-card { position: relative; background: var(--white); border: 1px solid var(--gray-lt); padding: 28px 24px; border-radius: 2px; display: flex; flex-direction: column; gap: 10px; transition: box-shadow .2s, border-color .2s; }
.column-card:hover { box-shadow: 0 12px 32px rgba(192,99,76,0.18), 0 2px 8px rgba(28,28,46,0.06); border-color: var(--color-accent); }
.column-card-title { font-family: var(--font-ja); font-size: 0.9rem; font-weight: 700; color: var(--navy); line-height: 1.5; }
.column-card-body { font-size: 0.8rem; color: var(--gray); line-height: 1.8; flex: 1; }
.column-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 0.8rem; font-weight: 700; color: var(--navy); padding-left: 10px; border-left: 2px solid var(--color-accent); align-self: flex-start; }
.more-link-row { margin-top: 40px; text-align: left; }
.more-link { display: inline-flex; align-items: center; gap: 8px; padding-left: 10px; border-left: 2px solid var(--color-accent); font-size: 0.88rem; font-weight: 700; color: var(--navy); transition: color .15s; }
.more-link:hover { color: var(--color-accent); }

/* ─── ABOUT ─── */
.about-section { background: var(--white); border-top: 1px solid var(--gray-lt); }
.about-layout { display: grid; grid-template-columns: auto 1fr; gap: 64px; align-items: start; margin-top: 56px; }
.about-avatar { width: 100px; height: 100px; background: var(--navy); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-ja); font-size: 1.1rem; font-weight: 700; color: var(--white); flex-shrink: 0; }
.about-name { font-family: var(--font-ja); font-size: 1.15rem; font-weight: 700; color: var(--navy); margin-bottom: 16px; }
.about-bio { font-size: 0.9rem; color: var(--gray); line-height: 1.9; max-width: 560px; margin-bottom: 20px; }
.about-quote { font-family: var(--font-ja); font-size: 1rem; font-weight: 700; color: var(--navy); border-left: 3px solid var(--color-accent); padding-left: 16px; margin: 24px 0; line-height: 1.7; }
.about-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.about-tag { font-size: 0.78rem; padding: 4px 12px; background: var(--bg); border: 1px solid var(--gray-lt); color: var(--gray); border-radius: 2px; }
.about-link { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 700; color: var(--color-accent); padding-left: 10px; border-left: 2px solid var(--color-accent); margin-top: 20px; transition: color .15s; }
.about-link:hover { color: var(--navy); }

/* ─── CTA ─── */
.cta-section { background: var(--color-accent) url("/assets/images/contact-bg.jpg") center / cover no-repeat; display: flex; align-items: center; justify-content: center; padding: clamp(48px, 5vw, 80px) 40px; text-align: center; }
.cta-section .section-inner { max-width: 700px; }
.cta-eyebrow { font-family: var(--font-en); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(28,28,46,0.75); margin-bottom: 20px; }
.cta-title { font-family: var(--font-ja); font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; color: #1c1c2e; line-height: 1.5; margin-bottom: 20px; }
.cta-body { font-size: 0.9rem; font-weight: 500; color: rgba(28,28,46,0.9); line-height: 1.9; margin-bottom: 28px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-cta-main { background: #fdf6ec; color: var(--color-accent); border: 1px solid rgba(28,28,46,0.2); font-family: var(--font-ja); font-weight: 700; font-size: 0.95rem; padding: 16px 40px; border-radius: 4px; border: none; cursor: pointer; transition: transform .15s; display: inline-block; }
.btn-cta-main:hover { transform: translateY(-2px); }
.btn-cta-sub { background: rgba(253,246,236,0.15); color: #fdf6ec; font-family: var(--font-ja); font-weight: 700; font-size: 0.85rem; padding: 16px 32px; border-radius: 4px; border: 2px solid rgba(253,246,236,0.7); transition: border-color .2s; display: inline-block; }
.btn-cta-sub:hover { border-color: var(--white); }

/* ─── FOOTER ─── */
.footer { background: #0a0a0f; }

/* スカイラインバー */
.footer-skyline-bar { background: #0a0a0f; }
.footer-skyline-inner { padding: 16px 20px 12px; text-align: center; }
.footer-logo { font-family: var(--font-en); font-weight: 800; font-size: 1.7rem; color: var(--white); letter-spacing: 0.08em; text-decoration: none; flex-shrink: 0; }
.footer-logo span { color: var(--color-accent); }

/* リンクバー */
.footer-link-bar { background: #111118; border-top: 1px solid rgba(255,255,255,0.07); }
.footer-link-inner { max-width: 1232px; margin: 0 auto; padding: 14px 40px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-link-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-link-nav a { font-size: 0.8rem; color: rgba(255,255,255,0.45); text-decoration: none; transition: color .15s; }
.footer-link-nav a:hover { color: rgba(255,255,255,0.85); }
.footer-link-right { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-link-right a { font-size: 0.78rem; color: rgba(255,255,255,0.35); text-decoration: none; transition: color .15s; }
.footer-link-right a:hover { color: rgba(255,255,255,0.7); }
.footer-link-right span { font-size: 0.78rem; color: rgba(255,255,255,0.25); }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .header { padding: 14px 20px 0; flex-wrap: wrap; }
  section[id], div[id] { scroll-margin-top: 115px; }
  .header-cta { margin-left: auto; }
  .header-nav { display: flex; order: 3; width: 100%; overflow-x: auto; scrollbar-width: none; gap: 0; padding: 8px 0 10px; border-top: 1px solid var(--gray-lt); margin-top: 10px; }
  .header-nav::-webkit-scrollbar { display: none; }
  .header-nav a { white-space: nowrap; font-size: 0.8rem; padding: 2px 14px 2px 0; }
  .nav-sp-hidden { display: none; }
  .hero { padding: 96px 20px 32px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-report { display: none; }
  .hero-decor { display: none; }
  .hero-stat { gap: 12px; flex-wrap: nowrap; justify-content: flex-start; }
  .stat-num { font-size: 1.2rem; }
  .stat-label { font-size: 0.68rem; }
  .hero-btns { flex-wrap: nowrap; }
  .hero-btns .btn-main, .hero-btns .btn-sub { flex: 1; text-align: center; padding: 14px 10px; font-size: 0.85rem; white-space: nowrap; }
  .problem-text br { display: none; }
  .fit-btn { display: block; text-align: center; width: fit-content; margin: 20px auto 0; }
  .section { padding: 56px 20px; }
  .supported-inner { flex-wrap: wrap; gap: 16px; }
  .flow-list { margin-top: 28px; }
  .flow-arrow { padding: 2px 0 2px 20px; }
  .flow-desc { font-size: 0.82rem; }
  .flow-item { gap: 14px; }
  .flow-num { font-size: 1.2rem; width: 36px; }
  .section-title { font-size: 1.6rem; }
  .about-brief-supported { flex-wrap: wrap; gap: 12px; }
  .about-brief-supported .supported-divider { display: none; }
  .supported-tags { flex-wrap: wrap; padding-left: 6px; }
  .problems-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .case-layout { grid-template-columns: 1fr 1fr; gap: 16px; }
  .why-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 32px; }
  .why-card { padding: 20px; column-gap: 10px; }
  .why-card-num { font-size: 1.3rem; }
  .dodont-grid { grid-template-columns: 1fr; }
  .column-cards { grid-template-columns: 1fr; }
  .column-card { padding: 20px 18px; }
  .tools-grid { grid-template-columns: 1fr; }
  .about-layout { grid-template-columns: 1fr; gap: 32px; }
  .cta-section { padding: 56px 20px; background-position: 62% center; aspect-ratio: auto; }
  .cta-btns { flex-wrap: nowrap; }
  .cta-btns .btn-cta-main, .cta-btns .btn-cta-sub { flex: 1; white-space: nowrap; padding: 14px 10px; font-size: 0.85rem; }
  .footer-logo { font-size: 1.4rem; }
  .footer-link-inner { padding: 12px 20px; flex-direction: column; gap: 10px; align-items: flex-start; }
  .footer-link-right { gap: 14px; }
}

/* ─── BACK TO TOP ─── */
.back-to-top { position: fixed; bottom: 32px; right: 32px; z-index: 99; width: 44px; height: 44px; background: var(--navy); color: var(--white); border: none; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(28,28,46,0.24); opacity: 0; pointer-events: none; transform: translateY(8px); transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s; }
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--color-accent); }
@media (max-width: 768px) {
  .back-to-top { bottom: 20px; right: 16px; width: 40px; height: 40px; }
}

/* ─── ANIMATIONS ─── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.hero-label   { animation: fadeUp .6s ease both; }
.hero-heading { animation: fadeUp .6s .1s ease both; }
.hero-sub     { animation: fadeUp .6s .2s ease both; }
.hero-note    { animation: fadeUp .6s .3s ease both; }
.hero-btns    { animation: fadeUp .6s .4s ease both; }
.hero-stat    { animation: fadeUp .6s .5s ease both; }

/* ─── SERVICE PEEK（カード右上の黒丸キャラ） ─── */
.service-peek { position: absolute; top: 14px; right: 14px; width: 56px; text-align: center; pointer-events: none; }
.service-peek-circle { display: block; box-sizing: border-box; width: 56px; height: 56px; border-radius: 50%; background: var(--white); border: 1px solid rgba(28,28,46,0.35); overflow: hidden; position: relative; }
.service-peek-img { position: absolute; top: -1px; left: -1px; width: calc(100% + 2px); height: calc(100% + 2px); border-radius: 50%; object-fit: cover; opacity: 0; transform: translate(0, 110%); }
.service-peek-label { display: block; margin-top: 5px; font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em; color: var(--color-accent); white-space: nowrap; opacity: 0; transform: translateY(-3px); transition: opacity .3s ease .3s, transform .3s ease .3s; }
.peek-on .service-peek-label { opacity: 1; transform: translateY(0); }
.peek-static .service-peek-label { opacity: 1; transform: none; }

/* ─── COLUMN TAG（コラムカードのカテゴリバッジ、blog.cssと同配色） ─── */
.column-tag { align-self: flex-start; font-size: 10px; padding: 2px 8px; border-radius: 99px; font-weight: 600; }
.column-tag.qa { background: #e8f0fe; color: #1a56db; }
.column-tag.ai { background: #fce8ff; color: #7c3aed; }
.column-tag.tips { background: #e8f5e9; color: #2e7d32; }
.column-tag.essay { background: #fdf0e8; color: var(--color-accent); }

/* セクション別の黒丸サイズ（サービス=大きめ、ツール=小さめ、コラム=標準56px） */
.service-card .service-peek { width: 64px; }
.service-card .service-peek-circle { width: 64px; height: 64px; }
.tool-card .service-peek, .column-card .service-peek { width: 44px; }
.tool-card .service-peek-circle, .column-card .service-peek-circle { width: 44px; height: 44px; }
.column-card .service-peek-label { display: none; }

/* スマホ：丸アイコンを小さめに・「クリック」ラベルは出さない */
@media (max-width: 768px) {
  .service-card .service-peek { width: 48px; }
  .service-card .service-peek-circle { width: 48px; height: 48px; }
  .tool-card .service-peek, .column-card .service-peek { width: 36px; }
  .tool-card .service-peek-circle, .column-card .service-peek-circle { width: 36px; height: 36px; }
  .service-peek-label { display: none; }
}