*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }

:root {
  --red:    #E60012;
  --blue:   #0066CC;
  --yellow: #FFD500;
  --navy:   #1E293B;
  --body:   #334155;
  --sub:    #64748B;
  --border: #E2E8F0;
  --bg:     #F8FAFC;
  --white:  #FFFFFF;
}

html { scroll-behavior:smooth; }
body { font-family:'Noto Sans JP',sans-serif; color:var(--body); line-height:1.75; overflow-x:hidden; background:#fff; }

/* ── Header ──────────────────────────── */
header { position:fixed; top:0; left:0; right:0; z-index:200; background:rgba(255,255,255,.97); backdrop-filter:blur(12px); border-bottom:1px solid var(--border); height:64px; display:flex; align-items:center; }
.header-inner { max-width:1200px; margin:0 auto; width:100%; padding:0 40px; display:flex; align-items:center; justify-content:space-between; }
.logo { font-family:'Outfit',sans-serif; font-weight:900; font-size:1.4rem; color:var(--navy); text-decoration:none; letter-spacing:.05em; }
.logo .s { color:var(--red); }
.logo .t { color:var(--blue); }
nav { display:flex; gap:32px; align-items:center; }
nav a { font-size:.82rem; font-weight:500; color:var(--sub); text-decoration:none; transition:color .2s; }
nav a:hover { color:var(--navy); }
nav a.on { color:var(--red); font-weight:700; border-bottom:2px solid var(--red); padding-bottom:2px; }
.nav-contact { background:var(--red); color:#fff!important; padding:8px 20px; border-radius:4px; font-weight:700!important; }

/* ── Hero ─────────────────────────────── */
.hero {
  margin-top:64px;
  background:var(--navy);
  position:relative; overflow:hidden;
  padding:100px 40px 80px;
}
.hero::before {
  content:'';
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse 55% 70% at 100% 0%, rgba(230,0,18,.18) 0%,transparent 60%),
    radial-gradient(ellipse 40% 60% at 0% 100%, rgba(0,102,204,.15) 0%,transparent 55%);
}
.hero-grid-bg {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:60px 60px;
}
.hero-ticker {
  position:absolute; bottom:0; left:0; right:0;
  height:3px;
  background:linear-gradient(90deg, var(--red), var(--yellow), var(--blue), var(--red));
  background-size:200%;
  animation:tickerMove 3s linear infinite;
}
@keyframes tickerMove { 0%{background-position:0%} 100%{background-position:200%} }

.hero-inner {
  max-width:1200px; margin:0 auto;
  position:relative; z-index:1;
  display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:center;
}
.breadcrumb { display:flex; gap:8px; margin-bottom:32px; }
.breadcrumb a { font-size:.78rem; color:rgba(255,255,255,.4); text-decoration:none; }
.breadcrumb span { font-size:.78rem; color:rgba(255,255,255,.4); }
.breadcrumb .cur { color:var(--yellow); }
.hero-en {
  font-family:'Outfit',sans-serif; font-size:.7rem; font-weight:700;
  letter-spacing:.25em; color:var(--red);
  display:flex; align-items:center; gap:12px; margin-bottom:16px;
}
.hero-en::before { content:''; display:block; width:40px; height:2px; background:var(--red); }
.hero-h1 {
  font-family:'Zen Kaku Gothic New',sans-serif;
  font-size:clamp(2.6rem,5vw,4.4rem);
  font-weight:900; color:#fff;
  line-height:1.1; letter-spacing:-.03em; margin-bottom:24px;
}
.hero-h1 .yl { color:var(--yellow); }
.hero-desc { font-size:1rem; color:rgba(255,255,255,.6); line-height:1.95; max-width:480px; }

/* Stats */
.hero-stats { display:grid; grid-template-columns:1fr 1fr; gap:2px; }
.stat-block {
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  padding:36px 32px;
  transition:background .3s;
}
.stat-block:hover { background:rgba(255,255,255,.09); }
.stat-block:first-child { border-radius:12px 0 0 0; }
.stat-block:nth-child(2) { border-radius:0 12px 0 0; }
.stat-block:nth-child(3) { border-radius:0 0 0 12px; }
.stat-block:last-child { border-radius:0 0 12px 0; }
.stat-num {
  font-family:'Outfit',sans-serif;
  font-size:3rem; font-weight:900; color:#fff; line-height:1; margin-bottom:6px;
}
.stat-num em { font-style:normal; font-size:1.4rem; color:var(--yellow); }
.stat-label { font-size:.78rem; color:rgba(255,255,255,.45); letter-spacing:.05em; }

/* ── Filter nav ───────────────────────── */
.filter-wrap {
  background:#fff; border-bottom:1px solid var(--border);
  position:sticky; top:64px; z-index:100;
  padding:0;
}
.filter-inner {
  max-width:1200px; margin:0 auto; padding:0 40px;
  display:flex; align-items:center; gap:0;
}
.filter-label {
  font-size:.72rem; font-weight:700; letter-spacing:.12em;
  color:var(--sub); padding:16px 20px 16px 0;
  border-right:1px solid var(--border); margin-right:4px;
  white-space:nowrap;
}
.filter-btn {
  display:flex; align-items:center; gap:7px;
  padding:16px 20px; font-size:.82rem; font-weight:500;
  color:var(--sub); background:none; border:none; cursor:pointer;
  white-space:nowrap; border-bottom:3px solid transparent;
  transition:all .2s; font-family:'Noto Sans JP',sans-serif;
}
.filter-btn:hover { color:var(--navy); }
.filter-btn.on { color:var(--red); font-weight:700; border-bottom-color:var(--red); }
.filter-dot { width:8px; height:8px; border-radius:50%; }
.filter-count {
  font-family:'Outfit',sans-serif; font-size:.68rem; font-weight:700;
  background:var(--bg); color:var(--sub);
  padding:2px 7px; border-radius:99px;
}
.filter-btn.on .filter-count { background:var(--red); color:#fff; }

/* ── Cases grid ───────────────────────── */
.cases-section { padding:80px 0 120px; }
.wrap { max-width:1200px; margin:0 auto; padding:0 40px; }

.cases-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

/* Featured case (span 2) */
.case-card {
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  overflow:hidden;
  transition:transform .3s, box-shadow .3s;
  display:flex; flex-direction:column;
}
.case-card:hover { transform:translateY(-6px); box-shadow:0 16px 48px rgba(0,0,0,.1); }
.case-card.featured {
  grid-column: span 2;
  flex-direction:row;
}

.case-thumb {
  aspect-ratio:16/9;
  display:flex; align-items:center; justify-content:center;
  font-size:3.5rem; position:relative; overflow:hidden; flex-shrink:0;
}
.case-card.featured .case-thumb {
  aspect-ratio:auto; width:360px; flex-shrink:0;
}
.case-thumb::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(to bottom, transparent 40%, rgba(0,0,0,.5));
}
.ct-web  { background:linear-gradient(135deg,#fee2e2,#fca5a5); }
.ct-gov  { background:linear-gradient(135deg,#dbeafe,#93c5fd); }
.ct-biz  { background:linear-gradient(135deg,#e2e8f0,#cbd5e1); }
.ct-ses  { background:linear-gradient(135deg,#fef3c7,#fde68a); }

.case-body { padding:28px; flex:1; display:flex; flex-direction:column; }
.case-meta { display:flex; align-items:center; gap:8px; margin-bottom:14px; flex-wrap:wrap; }
.case-cat {
  font-size:.68rem; font-weight:700; padding:3px 10px; border-radius:4px;
  letter-spacing:.06em; white-space:nowrap;
}
.cat-web { background:#FFF1F2; color:var(--red); }
.cat-gov { background:#EFF6FF; color:var(--blue); }
.cat-biz { background:#F1F5F9; color:var(--navy); }
.cat-ses { background:#FFFBEB; color:#B45309; }

.case-industry {
  font-size:.72rem; color:var(--sub); background:var(--bg);
  padding:3px 10px; border-radius:4px;
}
.case-card h3 {
  font-family:'Zen Kaku Gothic New',sans-serif;
  font-size:1.05rem; font-weight:700; color:var(--navy);
  line-height:1.45; margin-bottom:10px;
}
.case-card.featured h3 { font-size:1.3rem; }
.case-desc { font-size:.84rem; color:var(--sub); line-height:1.8; flex:1; margin-bottom:20px; }

.case-tags { display:flex; gap:6px; flex-wrap:wrap; margin-bottom:20px; }
.case-tag {
  font-size:.7rem; color:var(--sub); background:var(--bg);
  border:1px solid var(--border); padding:3px 9px; border-radius:4px;
  font-family:'Outfit',sans-serif;
}

.case-result {
  border-top:1px solid var(--border); padding-top:16px;
  display:flex; gap:20px;
}
.result-item { }
.result-val {
  font-family:'Outfit',sans-serif; font-size:1.3rem; font-weight:900;
  color:var(--red); line-height:1;
}
.result-lbl { font-size:.72rem; color:var(--sub); margin-top:2px; }

.case-link {
  display:inline-flex; align-items:center; gap:6px;
  font-size:.82rem; font-weight:700; color:var(--blue);
  text-decoration:none; margin-top:16px; align-self:flex-start;
  border-bottom:1px solid transparent; transition:border-color .2s;
}
.case-link:hover { border-bottom-color:var(--blue); }

/* hidden cards */
.case-card.hidden { display:none; }

/* ── Pagination / load more ───────────── */
.load-more-wrap { text-align:center; margin-top:56px; }
.btn-load {
  display:inline-flex; align-items:center; gap:10px;
  border:2px solid var(--navy); color:var(--navy);
  font-weight:700; font-size:.9rem; padding:14px 40px; border-radius:4px;
  background:none; cursor:pointer; font-family:'Noto Sans JP',sans-serif;
  transition:all .25s;
}
.btn-load:hover { background:var(--navy); color:#fff; }

/* ── Testimonials ─────────────────────── */
.testimonials { background:var(--bg); padding:96px 0; }
.testimonials-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:56px; }
.testi-card {
  background:#fff; border:1px solid var(--border); border-radius:12px; padding:32px;
  transition:transform .3s, box-shadow .3s;
}
.testi-card:hover { transform:translateY(-4px); box-shadow:0 12px 36px rgba(0,0,0,.07); }
.testi-mark {
  font-family:'Outfit',sans-serif; font-size:4.5rem; color:var(--border);
  line-height:1; margin-bottom:-8px;
}
.testi-text {
  font-size:.92rem; color:var(--navy); line-height:1.8;
  font-weight:500; margin-bottom:24px;
}
.testi-from {
  border-top:1px solid var(--border); padding-top:16px;
}
.testi-company { font-size:.78rem; color:var(--sub); margin-bottom:3px; }
.testi-role { font-size:.82rem; font-weight:700; color:var(--navy); }
.testi-cat {
  display:inline-block; margin-top:8px;
  font-size:.68rem; font-weight:700; padding:3px 10px; border-radius:4px;
}

/* ── Section title ────────────────────── */
.sec-en {
  font-family:'Outfit',sans-serif; font-size:.7rem; font-weight:700;
  letter-spacing:.22em; text-transform:uppercase; color:var(--red);
  display:flex; align-items:center; gap:10px; margin-bottom:14px;
}
.sec-en::before { content:''; display:block; width:28px; height:2px; background:var(--red); }
.sec-ttl {
  font-family:'Zen Kaku Gothic New',sans-serif;
  font-size:clamp(1.8rem,3.5vw,2.8rem);
  font-weight:900; color:var(--navy); line-height:1.2; letter-spacing:-.02em;
}
.sec-lead { font-size:.97rem; color:var(--sub); line-height:1.9; max-width:600px; margin-top:16px; }

/* ── CTA ──────────────────────────────── */
.cta-section { background:var(--navy); padding:96px 0; position:relative; overflow:hidden; }
.cta-section::before {
  content:''; position:absolute; inset:0;
  background:
    radial-gradient(ellipse 60% 100% at 100% 50%, rgba(230,0,18,.2) 0%,transparent 60%),
    radial-gradient(ellipse 40% 80% at 0% 50%, rgba(0,102,204,.15) 0%,transparent 55%);
}
.cta-inner { position:relative; z-index:1; text-align:center; }
.cta-inner h2 { font-family:'Zen Kaku Gothic New',sans-serif; font-size:clamp(1.8rem,4vw,3rem); font-weight:900; color:#fff; margin-bottom:16px; }
.cta-inner p { font-size:1rem; color:rgba(255,255,255,.65); margin-bottom:48px; }
.cta-btns { display:flex; gap:20px; justify-content:center; flex-wrap:wrap; }
.btn-red { display:inline-flex; align-items:center; gap:10px; background:var(--red); color:#fff; font-weight:700; font-size:.95rem; padding:18px 44px; border-radius:4px; text-decoration:none; transition:all .25s; box-shadow:0 4px 20px rgba(230,0,18,.3); }
.btn-red:hover { background:#c0000f; transform:translateY(-2px); }
.btn-border { display:inline-flex; align-items:center; gap:10px; border:2px solid rgba(255,255,255,.35); color:#fff; font-weight:600; font-size:.9rem; padding:16px 36px; border-radius:4px; text-decoration:none; transition:all .25s; }
.btn-border:hover { border-color:#fff; background:rgba(255,255,255,.08); }

/* ── Footer ───────────────────────────── */
footer { background:var(--navy); padding:64px 0 0; border-top:1px solid rgba(255,255,255,.07); }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr 1fr; gap:48px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.07); }
.footer-logo { font-family:'Outfit',sans-serif; font-size:1.4rem; font-weight:900; color:#fff; display:block; margin-bottom:14px; text-decoration:none; letter-spacing:.05em; }
.footer-brand p { font-size:.82rem; color:rgba(255,255,255,.38); line-height:1.8; max-width:240px; }
.footer-nav h4 { font-size:.7rem; font-weight:700; letter-spacing:.15em; color:rgba(255,255,255,.4); text-transform:uppercase; margin-bottom:14px; font-family:'Outfit',sans-serif; }
.footer-nav ul { list-style:none; }
.footer-nav li { margin-bottom:9px; }
.footer-nav a { font-size:.82rem; color:rgba(255,255,255,.46); text-decoration:none; transition:color .2s; }
.footer-nav a:hover { color:#fff; }
.footer-btm { padding:20px 0; display:flex; justify-content:space-between; align-items:center; }
.footer-btm p { font-size:.74rem; color:rgba(255,255,255,.24); }
.footer-btm-links { display:flex; gap:24px; }
.footer-btm-links a { font-size:.74rem; color:rgba(255,255,255,.28); text-decoration:none; }

/* ---- モバイル対応（追加） ---- */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr !important; padding: 90px 20px 50px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .cases-grid, .testimonials-grid { grid-template-columns: 1fr !important; gap: 20px; }
  .case-card.featured { grid-column: auto !important; flex-direction: column !important; }
  .case-card.featured .case-thumb { width: 100% !important; }
  .filter-inner { overflow-x: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .wrap { padding-left: 20px; padding-right: 20px; }
}