/* =========================
   Differentiation Page Base
   ========================= */

body.diff-page {
  background:
    linear-gradient(180deg, #071634 0%, #081b44 18%, #f5f9ff 18%, #eef4ff 100%);
}

.diff-page-main {
  position: relative;
  z-index: 1;
  background: transparent;
}

.diff-overview-section {
  position: relative;
  padding: 112px 0 40px;
  background: linear-gradient(180deg, #f7faff 0%, #eef4ff 100%);
}

.diff-section {
  padding: 42px 0 48px;
}

/* =========================
   Section Heading
   ========================= */

.diff-section-heading {
  text-align: center;
  margin-bottom: 22px;
}

.diff-section-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #102a5c;
  word-break: keep-all;
}

.diff-section-desc {
  margin: 0 auto;
  max-width: 920px;
  color: #5d749d;
  font-size: 1.04rem;
  line-height: 1.9;
  word-break: keep-all;
}

/* =========================
   Panel
   ========================= */

.diff-panel {
  position: relative;
  overflow: hidden;
  margin-top: 24px;
  padding: 34px 30px 30px;
  border-radius: 34px;
  background:
    radial-gradient(circle at 16% 18%, rgba(96,165,250,0.05), transparent 18%),
    radial-gradient(circle at 86% 20%, rgba(147,197,253,0.05), transparent 18%),
    linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
  border: 1px solid #dde4ee;
  box-shadow:
    0 20px 46px rgba(44, 62, 100, 0.08),
    inset 0 1px 0 rgba(255,255,255,0.5);
}

.diff-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 30px;
  right: 30px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(58,109,255,0.96), rgba(157,190,255,0.72));
  pointer-events: none;
}

/* =========================
   Bridge Band
   ========================= */

.diff-bridge-band {
  position: relative;
  height: 180px;
  margin: 0;
  background: transparent;
  overflow: visible;
}

.diff-bridge-band::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 18px;
  bottom: 18px;
  width: 1px;
  transform: translateX(-50%);
  background: linear-gradient(
    180deg,
    rgba(159, 184, 236, 0) 0%,
    rgba(159, 184, 236, 0.22) 18%,
    rgba(159, 184, 236, 0.42) 50%,
    rgba(159, 184, 236, 0.18) 82%,
    rgba(159, 184, 236, 0) 100%
  );
  box-shadow: 0 0 14px rgba(159, 184, 236, 0.12);
  pointer-events: none;
}

.diff-bridge-band::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -34px;
  width: min(760px, 72vw);
  height: 180px;
  transform: translateX(-50%);
  background: radial-gradient(
    ellipse at center,
    rgba(255,255,255,0.42) 0%,
    rgba(255,255,255,0.18) 28%,
    rgba(255,255,255,0.05) 52%,
    rgba(255,255,255,0) 72%
  );
  filter: blur(18px);
  pointer-events: none;
}

.diff-bridge-orb {
  position: absolute;
  left: 50%;
  bottom: 14px;
  width: 10px;
  height: 10px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, #ffffff 0%, #dce8ff 45%, #9dbdff 78%, rgba(157,189,255,0) 100%);
  box-shadow:
    0 0 10px rgba(157,189,255,0.22),
    0 0 18px rgba(157,189,255,0.12);
  pointer-events: none;
}

/* =========================
   Grid
   ========================= */

.target-grid,
.diff-card-grid {
  display: grid;
  gap: 24px;
}

.target-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.diff-card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* =========================
   Cards
   ========================= */

.diff-card-btn {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: 220px;
  padding: 34px 28px 30px;
  border-radius: 30px;
  border: 1px solid rgba(148, 173, 220, 0.22);
  background: rgba(255, 255, 255, 0.97);
  box-shadow:
    0 18px 40px rgba(8, 27, 68, 0.08),
    0 6px 14px rgba(8, 27, 68, 0.04);
  text-align: center;
  cursor: pointer;
  transition:
    transform 0.28s ease,
    box-shadow 0.28s ease,
    border-color 0.28s ease;
}

.diff-card-btn:hover {
  transform: translateY(-8px);
  border-color: rgba(96, 165, 250, 0.3);
  box-shadow:
    0 24px 50px rgba(8, 27, 68, 0.12),
    0 10px 18px rgba(37, 99, 235, 0.06);
}

.diff-card-btn::before {
  content: "";
  position: absolute;
  width: 170px;
  height: 170px;
  right: -28px;
  top: -30px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.1), transparent 68%);
  pointer-events: none;
}

.diff-card-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: 28px;
  right: 28px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #93c5fd);
  pointer-events: none;
}

.diff-card-btn h3 {
  margin: 0 0 12px;
  color: #102a5c;
  font-size: 1.35rem;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.03em;
  word-break: keep-all;
}

.diff-card-btn p {
  margin: 0;
  color: #62779f;
  font-size: 0.97rem;
  line-height: 1.8;
  word-break: keep-all;
}

/* =========================
   Collaboration Structure
   ========================= */

.network-shell {
  border-radius: 30px;
  padding: 38px 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.88), rgba(244,248,255,0.96));
  border: 1px solid rgba(148,173,220,0.20);
  box-shadow:
    0 18px 40px rgba(8,27,68,0.08),
    inset 0 1px 0 rgba(255,255,255,0.55);
  position: relative;
  overflow: hidden;
}

.network-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 16%, rgba(147,197,253,.16), transparent 20%),
    radial-gradient(circle at 50% 82%, rgba(96,165,250,.10), transparent 18%);
  pointer-events: none;
}

.network-top {
  display: flex;
  justify-content: center;
  margin-bottom: 46px;
  position: relative;
  z-index: 2;
}

.network-core {
  width: min(520px, 100%);
  text-align: center;
  padding: 30px 26px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(31,54,110,0.96) 0%, rgba(23,44,89,0.98) 100%);
  border: 1px solid rgba(129,156,214,0.18);
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  position: relative;
  overflow: hidden;
}

.network-core::before {
  content: "";
  position: absolute;
  inset: auto 50% -22px 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 22px;
  background: linear-gradient(to bottom, rgba(147,197,253,.88), rgba(147,197,253,.12));
}

.network-core h3 {
  margin: 0 0 12px;
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.04em;
}

.network-core p {
  margin: 0;
  color: rgba(234,242,255,.78);
  line-height: 1.8;
  word-break: keep-all;
}

.network-row {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  padding-top: 42px;
  z-index: 2;
}

.network-row::before {
  content: "";
  position: absolute;
  left: 16.66%;
  right: 16.66%;
  top: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    rgba(147,197,253,.78) 0 8px,
    transparent 8px 16px
  );
  box-shadow: 0 0 18px rgba(96,165,250,.22);
}

.network-plus {
  position: absolute;
  top: -16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #facc15, #f59e0b);
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(245,158,11,.24);
  z-index: 3;
}

.plus-a {
  left: 33.33%;
  transform: translateX(-50%);
}

.plus-b {
  left: 66.66%;
  transform: translateX(-50%);
}

.network-item {
  min-height: 220px;
  padding: 34px 28px 30px;
  border-radius: 28px;
  background: rgba(255,255,255,0.97);
  border: 1px solid rgba(148,173,220,0.22);
  box-shadow:
    0 18px 40px rgba(8,27,68,0.08),
    0 6px 14px rgba(8,27,68,0.04);
  position: relative;
  overflow: hidden;
}

.network-item::before {
  content: "";
  position: absolute;
  top: -42px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 42px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(147,197,253,.8) 0 8px,
    transparent 8px 16px
  );
  box-shadow: 0 0 16px rgba(96,165,250,.18);
}

.network-item h4 {
  margin: 0 0 12px;
  font-size: 1.24rem;
  color: #102a5c;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.network-item p {
  margin: 0;
  color: #62779f;
  line-height: 1.8;
  word-break: keep-all;
}

/* =========================
   Modal
   ========================= */

.diff-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  padding: 0 16px 24px;
}

.diff-modal.show {
  display: flex;
}

.modal-box {
  width: 100%;
  max-width: 820px;
  border-radius: 28px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.24);
  animation: sheetUp 0.45s ease forwards;
  position: relative;
}

@keyframes sheetUp {
  from {
    transform: translateY(70px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-top {
  position: relative;
  padding: 28px 30px 22px;
  background:
    radial-gradient(circle at 84% 18%, rgba(147, 197, 253, 0.14), transparent 20%),
    linear-gradient(135deg, #071634 0%, #0d275d 45%, #1c4fb7 100%);
  color: #fff;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.15rem;
  cursor: pointer;
}

.modal-kicker {
  margin: 0 0 8px;
  color: rgba(219, 234, 254, 0.88);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.modal-title {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.04em;
  word-break: keep-all;
}

.modal-handle-wrap {
  display: flex;
  justify-content: center;
  padding-top: 10px;
  background: #fff;
}

.modal-handle {
  width: 46px;
  height: 5px;
  border-radius: 999px;
  background: #d1d5db;
}

.modal-body {
  padding: 28px 30px 32px;
  max-height: 72vh;
  overflow-y: auto;
  color: #475569;
  font-size: 1rem;
  line-height: 1.9;
  white-space: pre-line;
  word-break: keep-all;
}

.modal-image {
  margin-bottom: 18px;
  display: none;
}

.modal-image.show {
  display: block;
}

.modal-image img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid #e5e7eb;
}

/* =========================
   Motion
   ========================= */

.fade-up {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.show {
  opacity: 1;
  transform: translateY(0);
}

/* =========================
   Responsive
   ========================= */

@media (max-width: 991px) {
  .diff-overview-section {
    padding: 56px 0 24px;
  }

  .target-grid,
  .diff-card-grid,
  .network-row {
    grid-template-columns: 1fr;
  }

  .diff-panel {
    padding: 28px 22px 24px;
    border-radius: 26px;
  }

  .diff-panel::after {
    left: 22px;
    right: 22px;
  }

  .diff-card-btn {
    min-height: 190px;
    padding: 28px 24px 24px;
    border-radius: 24px;
  }

  .diff-card-btn::after {
    left: 24px;
    right: 24px;
  }

  .diff-bridge-band {
    height: 130px;
  }

  .diff-bridge-band::after {
    width: 86vw;
    height: 120px;
    top: -20px;
    filter: blur(14px);
  }

  .network-row::before,
  .network-item::before,
  .network-plus,
  .network-core::before {
    display: none;
  }

  .network-shell {
    padding: 24px 18px;
    border-radius: 24px;
  }

  .network-core,
  .network-item {
    border-radius: 24px;
    padding: 28px 22px;
  }

  .modal-box {
    border-radius: 24px;
  }

  .modal-top {
    padding: 24px 24px 20px;
  }

  .modal-body {
    padding: 24px 24px 28px;
  }
}

@media (max-width: 640px) {
  .diff-section-title {
    font-size: 1.8rem;
  }

  .diff-section-desc,
  .diff-card-btn p,
  .network-item p,
  .network-core p {
    font-size: 0.96rem;
    line-height: 1.8;
  }

  .diff-card-btn h3 {
    font-size: 1.2rem;
  }

  .network-core h3 {
    font-size: 1.5rem;
  }

  .network-item h4 {
    font-size: 1.12rem;
  }

  .modal-title {
    font-size: 1.5rem;
  }

  .diff-modal {
    padding: 0 10px 14px;
  }

  .diff-bridge-band {
    height: 100px;
  }
}
.services-section-kicker {
  display: inline-block;
  margin-bottom: 14px;
  color: #2563eb;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
}

.diff-section-heading {
  text-align: center;
  margin-bottom: 22px;
}

.diff-section-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #102a5c;
  word-break: keep-all;
}

.diff-section-desc {
  margin: 0 auto;
  max-width: 920px;
  color: #5d749d;
  font-size: 1.04rem;
  line-height: 1.9;
  word-break: keep-all;
}

.footer {
  width: 100%;
  margin: 0;
  padding: 34px 0 50px;
  color: #7487B3;
  font-size: .96rem;
  position: relative;
  z-index: 1;
  background: #071634;
  border-top: 1px solid rgba(255,255,255,.08);
}

.footer-inner {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}