.knowledge-page {
  color: #0a2639;
  background: #edf5fa;
}

.knowledge-page .home-header {
  position: fixed;
  color: #f4f9fd;
}

.knowledge-page .home-nav a[aria-current="page"] {
  color: #ecf8ff;
}

.knowledge-page .home-nav a[aria-current="page"]::after {
  right: 0;
  left: 0;
}

.product-card h3 a {
  color: inherit;
  text-decoration: none;
}

.product-card h3 a:hover,
.product-card h3 a:focus-visible {
  color: #1687b8;
}

.knowledge-hero {
  position: relative;
  overflow: hidden;
  padding: 150px 0 82px;
  color: #f5fbff;
  background:
    linear-gradient(90deg, rgba(79, 181, 236, 0.07) 1px, transparent 1px) 50% 0 / 86px 86px,
    linear-gradient(rgba(79, 181, 236, 0.07) 1px, transparent 1px) 50% 0 / 86px 86px,
    #03101e;
}

.knowledge-hero::before {
  position: absolute;
  top: -180px;
  right: -8vw;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(89, 210, 255, 0.2);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 90px rgba(57, 157, 218, 0.035), 0 0 0 180px rgba(57, 157, 218, 0.025);
}

.knowledge-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.72fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: end;
}

.knowledge-breadcrumb,
.article-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  color: #7699b2;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.knowledge-breadcrumb a,
.article-breadcrumb a {
  color: #9dc9df;
}

.knowledge-breadcrumb a:hover,
.article-breadcrumb a:hover {
  color: #68d5ff;
}

.knowledge-hero h1 {
  max-width: 780px;
  margin: 30px 0 0;
  font-family: var(--font-display);
  font-size: clamp(48px, 6.4vw, 86px);
  line-height: 1.02;
  letter-spacing: -0.055em;
}

.knowledge-hero h1 span {
  display: block;
  color: #62cdff;
}

.knowledge-hero-copy > p {
  max-width: 720px;
  margin: 28px 0 0;
  color: #b8cede;
  font-size: 17px;
  line-height: 1.9;
}

.knowledge-hero-note {
  border-top: 1px solid rgba(111, 204, 246, 0.28);
  padding-top: 24px;
}

.knowledge-hero-note span {
  display: block;
  color: #6fd9ff;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.knowledge-hero-note strong {
  display: block;
  margin-top: 12px;
  color: #f4f9fc;
  font-size: 18px;
  line-height: 1.55;
}

.knowledge-hero-note p {
  margin: 12px 0 0;
  color: #8faabe;
  font-size: 13px;
  line-height: 1.75;
}

.knowledge-index {
  padding: 88px 0 104px;
}

.knowledge-index-head {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  gap: 54px;
  align-items: end;
  margin-bottom: 42px;
}

.knowledge-index-head h2,
.knowledge-home h2 {
  margin: 0;
  color: #0a2d44;
  font-family: var(--font-display);
  font-size: clamp(38px, 4.8vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.knowledge-index-head h2 span,
.knowledge-home h2 span {
  color: #2d789e;
}

.knowledge-index-head > p {
  margin: 0;
  color: #597386;
  font-size: 15px;
  line-height: 1.82;
}

.knowledge-grid,
.knowledge-home-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.knowledge-card {
  position: relative;
  display: flex;
  min-height: 520px;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid rgba(34, 93, 130, 0.18);
  border-radius: 18px;
  color: #0a2b40;
  background: rgba(249, 252, 254, 0.82);
  box-shadow: 0 24px 60px rgba(35, 76, 103, 0.08);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.knowledge-card:hover {
  transform: translateY(-5px);
  border-color: rgba(26, 137, 197, 0.38);
  box-shadow: 0 30px 72px rgba(35, 76, 103, 0.14);
}

.knowledge-card-visual {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #082137;
}

.knowledge-card-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 42%, rgba(3, 16, 30, 0.68));
}

.knowledge-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 480ms ease;
}

.knowledge-card:hover img {
  transform: scale(1.035);
}

.knowledge-card-index {
  position: absolute;
  z-index: 1;
  right: 18px;
  bottom: 16px;
  color: #d6f4ff;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.knowledge-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 28px 28px 26px;
}

.knowledge-card-meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  color: #5f8094;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.knowledge-card h2,
.knowledge-card h3 {
  margin: 18px 0 0;
  color: #0b3048;
  font-family: var(--font-display);
  font-size: 25px;
  line-height: 1.28;
  letter-spacing: -0.025em;
}

.knowledge-card p {
  margin: 16px 0 0;
  color: #5d7586;
  font-size: 14px;
  line-height: 1.78;
}

.knowledge-card-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 24px;
  color: #0879aa;
  font-size: 13px;
  font-weight: 800;
}

.knowledge-card-link::after {
  content: "→";
  transition: transform 180ms ease;
}

.knowledge-card:hover .knowledge-card-link::after {
  transform: translateX(4px);
}

.knowledge-topic-map {
  margin-top: 34px;
  border: 1px solid rgba(35, 99, 137, 0.16);
  border-radius: 18px;
  padding: 28px 30px;
  background: rgba(225, 239, 247, 0.72);
}

.knowledge-topic-map strong {
  color: #173f57;
  font-size: 14px;
}

.knowledge-topic-map div {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 16px;
}

.knowledge-topic-map span {
  border: 1px solid rgba(38, 119, 162, 0.2);
  border-radius: 999px;
  padding: 8px 11px;
  color: #416d86;
  background: rgba(255, 255, 255, 0.62);
  font-size: 11px;
}

.knowledge-home {
  position: relative;
  overflow: hidden;
  padding: 96px 0;
  color: #0a2b40;
  background:
    linear-gradient(90deg, rgba(29, 105, 150, 0.055) 1px, transparent 1px) 50% 0 / 88px 88px,
    #edf5fa;
}

.knowledge-home-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: 34px;
}

.knowledge-home-head > a {
  flex: 0 0 auto;
  border-bottom: 1px solid #2a83af;
  padding: 10px 0;
  color: #155f86;
  font-size: 13px;
  font-weight: 800;
}

.knowledge-home .knowledge-card {
  min-height: 470px;
}

.article-hero {
  position: relative;
  overflow: hidden;
  padding: 142px 0 72px;
  color: #f4faff;
  background:
    linear-gradient(90deg, rgba(75, 178, 231, 0.06) 1px, transparent 1px) 50% 0 / 86px 86px,
    #03101e;
}

.article-hero::after {
  position: absolute;
  right: -240px;
  bottom: -360px;
  width: 760px;
  height: 760px;
  border: 1px solid rgba(79, 198, 249, 0.16);
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 100px rgba(42, 139, 197, 0.035);
}

.article-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 920px;
}

.article-hero .article-meta {
  margin-top: 28px;
  color: #7fa9c2;
}

.article-hero h1 {
  margin: 28px 0 0;
  font-family: var(--font-display);
  font-size: clamp(42px, 5.8vw, 76px);
  line-height: 1.08;
  letter-spacing: -0.052em;
}

.article-hero-lead {
  max-width: 780px;
  margin: 28px 0 0;
  color: #b7cede;
  font-size: 18px;
  line-height: 1.85;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: clamp(44px, 7vw, 94px);
  align-items: start;
  padding: 72px 0 104px;
}

.article-content {
  min-width: 0;
}

.answer-block {
  margin-bottom: 44px;
  border-left: 3px solid #2aa8dc;
  padding: 25px 28px;
  background: #e1eff6;
}

.answer-block strong {
  display: block;
  color: #0c4b6d;
  font-size: 13px;
  letter-spacing: 0.06em;
}

.answer-block p {
  margin: 10px 0 0;
  color: #294f64;
  font-size: 16px;
  line-height: 1.8;
}

.article-content h2 {
  scroll-margin-top: 110px;
  margin: 58px 0 20px;
  color: #0b3148;
  font-family: var(--font-display);
  font-size: clamp(29px, 3.4vw, 43px);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.article-content h3 {
  margin: 32px 0 14px;
  color: #164a67;
  font-size: 20px;
  line-height: 1.4;
}

.article-content p,
.article-content li {
  color: #405f71;
  font-size: 16px;
  line-height: 1.92;
}

.article-content p {
  margin: 0 0 20px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 1.35em;
}

.article-content li + li {
  margin-top: 8px;
}

.article-content a {
  color: #087caf;
  text-decoration: underline;
  text-decoration-color: rgba(8, 124, 175, 0.3);
  text-underline-offset: 3px;
}

.article-figure {
  margin: 40px 0;
}

.article-figure img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: 0 28px 62px rgba(30, 67, 91, 0.16);
}

.article-figure figcaption {
  margin-top: 12px;
  color: #718999;
  font-size: 12px;
  line-height: 1.65;
}

.article-table-wrap {
  margin: 30px 0 38px;
  overflow-x: auto;
  border: 1px solid rgba(35, 92, 125, 0.16);
  border-radius: 12px;
  background: #f8fbfd;
}

.article-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.article-table th,
.article-table td {
  border-bottom: 1px solid rgba(35, 92, 125, 0.12);
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  font-size: 13px;
  line-height: 1.65;
}

.article-table th {
  color: #184b67;
  background: #e4f0f6;
  font-weight: 800;
}

.article-table td {
  color: #4b6878;
}

.article-table tr:last-child td {
  border-bottom: 0;
}

.article-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 38px;
  padding: 0;
  list-style: none;
}

.article-checklist li {
  position: relative;
  margin: 0;
  border: 1px solid rgba(31, 104, 145, 0.16);
  border-radius: 10px;
  padding: 15px 16px 15px 42px;
  background: rgba(248, 252, 254, 0.8);
  font-size: 14px;
  line-height: 1.6;
}

.article-checklist li::before {
  position: absolute;
  top: 17px;
  left: 17px;
  color: #1198c7;
  content: "✓";
  font-weight: 900;
}

.article-faq {
  margin-top: 54px;
  border-top: 1px solid rgba(32, 91, 125, 0.18);
  padding-top: 10px;
}

.article-faq details {
  border-bottom: 1px solid rgba(32, 91, 125, 0.16);
  padding: 20px 0;
}

.article-faq summary {
  cursor: pointer;
  color: #123e58;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
}

.article-faq details p {
  margin: 14px 0 0;
  padding-right: 30px;
  font-size: 14px;
}

.article-related {
  margin-top: 64px;
  border-radius: 16px;
  padding: 30px;
  color: #eaf8ff;
  background: #082239;
}

.article-related > span {
  color: #70d7ff;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.article-related h2 {
  margin: 13px 0 0;
  color: #f4fbff;
  font-size: 28px;
}

.article-related-links {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.article-related a {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(125, 211, 248, 0.16);
  padding: 14px 0 0;
  color: #bfe9fa;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.article-related a::after {
  content: "↗";
}

.article-sidebar {
  position: sticky;
  top: 112px;
}

.article-toc,
.article-contact {
  border: 1px solid rgba(31, 95, 132, 0.16);
  border-radius: 14px;
  padding: 22px;
  background: rgba(249, 252, 254, 0.88);
}

.article-toc strong,
.article-contact strong {
  display: block;
  color: #153f58;
  font-size: 13px;
}

.article-toc ol {
  margin: 15px 0 0;
  padding: 0;
  list-style: none;
}

.article-toc li + li {
  margin-top: 10px;
}

.article-toc a {
  color: #5b7586;
  font-size: 12px;
  line-height: 1.5;
}

.article-toc a:hover {
  color: #087faf;
}

.article-contact {
  margin-top: 14px;
  background: #dff0f7;
}

.article-contact p {
  margin: 10px 0 0;
  color: #577386;
  font-size: 12px;
  line-height: 1.7;
}

.article-contact a {
  display: inline-flex;
  margin-top: 16px;
  border-bottom: 1px solid #1884b3;
  padding-bottom: 4px;
  color: #0d658d;
  font-size: 12px;
  font-weight: 800;
}

.article-method {
  margin-top: 38px;
  border-top: 1px solid rgba(37, 93, 124, 0.17);
  padding-top: 20px;
  color: #718897;
  font-size: 12px;
  line-height: 1.7;
}

@media (max-width: 980px) {
  .knowledge-hero-grid,
  .knowledge-index-head {
    grid-template-columns: 1fr;
  }

  .knowledge-hero-note {
    max-width: 620px;
  }

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

  .knowledge-card:last-child {
    grid-column: 1 / -1;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .article-contact {
    margin-top: 0;
  }
}

@media (max-width: 620px) {
  .knowledge-hero,
  .article-hero {
    padding-top: 116px;
  }

  .knowledge-hero {
    padding-bottom: 58px;
  }

  .knowledge-hero h1 {
    font-size: clamp(42px, 13.5vw, 58px);
  }

  .knowledge-hero-copy > p,
  .article-hero-lead {
    font-size: 15px;
  }

  .knowledge-index,
  .knowledge-home {
    padding: 66px 0 76px;
  }

  .knowledge-grid,
  .knowledge-home-grid,
  .article-checklist,
  .article-sidebar {
    grid-template-columns: 1fr;
  }

  .knowledge-card:last-child {
    grid-column: auto;
  }

  .knowledge-home-head {
    display: block;
  }

  .knowledge-home-head > a {
    display: inline-flex;
    margin-top: 18px;
  }

  .knowledge-card {
    min-height: 0;
  }

  .knowledge-card-visual {
    height: 200px;
  }

  .article-hero h1 {
    font-size: clamp(38px, 11.8vw, 54px);
  }

  .article-layout {
    padding: 52px 0 76px;
  }

  .answer-block,
  .article-related {
    padding: 22px;
  }

  .article-content p,
  .article-content li {
    font-size: 15px;
  }
}