* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Noto Sans JP', sans-serif; }

.bg-network {
  background-color: #f8fafc;
  background-image:
    radial-gradient(circle at 15% 50%, rgba(29, 78, 216, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23e2e8f0' stroke-width='0.5'%3E%3Cpath d='M0 30h60M30 0v60'/%3E%3C/g%3E%3C/svg%3E");
}

.heading-gradient {
  background: linear-gradient(120deg, #1d4ed8, #0ea5e9, #0f172a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent !important;
  font-size: clamp(1.8rem, 4.5vw, 3.2rem) !important;
  line-height: 1.25 !important;
}
.fv-main { font-size: clamp(2rem, 5vw, 3.5rem) !important; line-height: 1.2 !important; letter-spacing: -0.02em; }

.blob-shape {
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  animation: morph 8s ease-in-out infinite alternate;
}
.blob-shape-2 {
  border-radius: 60% 40% 30% 70% / 50% 60% 40% 50%;
  animation: morph 10s ease-in-out infinite alternate-reverse;
}
@keyframes morph {
  0%   { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
  50%  { border-radius: 70% 30% 50% 50% / 30% 30% 70% 70%; }
  100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
}

.comparison-section {
  background-color: #0c4a6e;
  background-image:
    radial-gradient(circle at 0% 0%, rgba(14, 165, 233, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(29, 78, 216, 0.2) 0%, transparent 52%);
  padding: 120px 24px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.comparison-section .container { max-width: 1080px; margin: 0 auto; position: relative; z-index: 1; }
.comparison-section .section-title {
  font-weight: 900; text-align: center; margin-bottom: 16px; font-size: clamp(1.8rem, 4vw, 2.5rem);
  background: linear-gradient(180deg, #fff 15%, #7dd3fc 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.comparison-section .lead-text { color: #bae6fd; text-align: center; max-width: 720px; margin: 0 auto 56px; line-height: 1.7; font-size: 16px; }
@media (max-width: 768px) {
  .comparison-section { padding: 80px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .blob-shape, .blob-shape-2 { animation: none; }
}

/* ─── 共通コンポーネント ─── */
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.375rem;
  border-radius: 9999px; background-color: #fff;
  padding: 0.5rem 0.875rem; font-size: 0.75rem;
  font-weight: 700; color: #334155;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / .05);
}
@media (min-width: 640px) { .hero-tag { font-size: 0.875rem; } }

.solution-card {
  position: relative; display: flex; flex-direction: column;
  overflow: hidden; border-radius: 1.5rem; background-color: #fff;
  box-shadow: 0 4px 20px rgb(0 0 0 / .03), 0 0 0 1px #f1f5f9;
  transition: all 0.5s;
}
.solution-card:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 25px 50px -12px rgba(29,78,216,.1), 0 0 0 1px rgba(29,78,216,.3);
}

.problem-card-inner {
  background: rgba(255,255,255,.95); backdrop-filter: blur(12px);
  padding: 1.5rem; border-radius: 32px;
  border: 3px solid rgba(96,165,250,.3);
  box-shadow: 0 30px 60px -12px rgba(30,58,138,.15);
  display: flex; flex-direction: column;
  align-items: center; gap: 2rem;
  transition: all 0.5s;
}
.problem-card-inner:hover {
  box-shadow: 0 30px 60px -12px rgba(59,130,246,.3);
  transform: translateY(-4px);
}
@media (min-width: 640px) { .problem-card-inner { padding: 2rem; } }
@media (min-width: 1024px) { .problem-card-inner { padding: 2rem 3rem; gap: 3rem; } }

.step-col {
  position: relative; z-index: 10; text-align: center;
  display: flex; flex-direction: column; align-items: center;
}
.step-icon-outer {
  display: flex; height: 6rem; width: 6rem;
  align-items: center; justify-content: center;
  border-radius: 9999px; background-color: #fff;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / .05);
  border: 4px solid #eff6ff; transition: border-color .15s;
}
.step-col:hover .step-icon-outer { border-color: rgba(96,165,250,.3); }
.step-icon-inner {
  display: flex; height: 4rem; width: 4rem;
  align-items: center; justify-content: center;
  border-radius: 9999px;
  background-color: rgba(29,78,216,.1); color: #1d4ed8;
  transition: background-color .15s, color .15s;
}
.step-col:hover .step-icon-inner { background-color: #1d4ed8; color: #fff; }
.step-badge {
  position: absolute; top: -0.75rem; left: 50%;
  transform: translateX(-50%);
  background-color: #1e293b; color: #fff;
  font-size: .75rem; font-weight: 700;
  padding: .375rem 1rem; border-radius: 9999px; letter-spacing: .1em;
}
.step-card {
  margin-top: 1.5rem; width: 100%; border-radius: 1rem;
  background-color: #fff; padding: 2rem 1.5rem 1.5rem;
  box-shadow: 0 1px 2px 0 rgb(0 0 0 / .05);
  border: 1px solid #f1f5f9; position: relative;
  height: 100%; display: flex; flex-direction: column;
}
.usecase-tag {
  display: inline-flex; align-items: center; gap: .25rem;
  border-radius: 9999px; background-color: #fff;
  padding: .25rem .75rem; font-size: .75rem; font-weight: 700;
  color: #1d4ed8; border: 1px solid #dbeafe;
}
.plan-icon {
  display: inline-flex; height: 3rem; width: 3rem;
  align-items: center; justify-content: center; border-radius: 1rem;
  background: linear-gradient(to bottom right, #1d4ed8, #3b82f6);
  color: #fff;
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);
}