.content-body {
  background:
    radial-gradient(circle at 80% 10%, rgba(43, 104, 176, 0.15), transparent 28%),
    #040a11;
}

.content-body .nav {
  background: rgba(4, 10, 17, 0.9);
  backdrop-filter: blur(18px);
}

.content-body .current-link {
  color: var(--cyan) !important;
}

.content-body .current-link::after {
  transform: scaleX(1) !important;
}

.articles-main {
  min-height: calc(100vh - 112px);
}

.content-hero {
  position: relative;
  overflow: hidden;
  padding: 178px max(28px, calc((100vw - var(--max-width)) / 2)) 95px;
  border-bottom: 1px solid var(--line);
}

.content-hero::before {
  position: absolute;
  z-index: 0;
  top: 78px;
  right: 0;
  bottom: 0;
  left: 50%;
  background:
    linear-gradient(rgba(86, 164, 210, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(86, 164, 210, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  mask-image: linear-gradient(90deg, transparent, black 38%, transparent);
}

.content-hero::after {
  position: absolute;
  top: 5%;
  right: -10%;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(50, 112, 192, 0.17), transparent 67%);
  content: "";
}

.content-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  max-width: var(--max-width);
  align-items: end;
  gap: 80px;
  grid-template-columns: 1fr 0.75fr;
}

.content-hero .section-label {
  margin-bottom: 28px;
}

.content-hero h1 {
  font-size: clamp(60px, 6.5vw, 96px);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 1.05;
}

.content-hero h1 em {
  background: linear-gradient(100deg, #78a0ff 0%, #6debe5 65%, #dbfffb 100%);
  background-clip: text;
  color: transparent;
  font-style: normal;
}

.content-hero-grid > p {
  max-width: 510px;
  margin-bottom: 12px;
  padding-left: 18px;
  border-left: 1px solid var(--cyan);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.content-signal {
  position: relative;
  z-index: 2;
  display: flex;
  max-width: var(--max-width);
  height: 35px;
  align-items: center;
  gap: 15px;
  margin-top: 75px;
  padding: 0 14px;
  border: 1px solid var(--line);
  color: var(--subtle);
  font-size: 7px;
  letter-spacing: 0.15em;
}

.content-signal > div {
  display: flex;
  flex: 1;
  gap: 5px;
}

.content-signal i {
  height: 3px;
  flex: 1;
  background: rgba(100, 244, 228, 0.14);
}

.content-signal i:nth-child(2n) {
  background: rgba(74, 125, 255, 0.3);
}

.content-signal b {
  color: var(--cyan);
  font-weight: 500;
}

.article-library {
  min-height: 620px;
  padding: 80px max(28px, calc((100vw - var(--max-width)) / 2)) 130px;
}

.library-toolbar {
  display: flex;
  max-width: var(--max-width);
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 35px;
}

.library-toolbar > div:first-child {
  display: grid;
  gap: 5px;
}

.toolbar-label {
  color: var(--subtle);
  font-size: 8px;
  letter-spacing: 0.18em;
}

.library-toolbar strong {
  color: #b8c9d4;
  font-size: 14px;
  font-weight: 500;
}

.category-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.category-filter button {
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid var(--line);
  background: rgba(8, 19, 31, 0.65);
  color: var(--subtle);
  font-size: 10px;
  transition:
    border-color 0.25s ease,
    color 0.25s ease,
    background 0.25s ease;
}

.category-filter button:hover,
.category-filter button.active {
  border-color: rgba(100, 244, 228, 0.36);
  background: rgba(100, 244, 228, 0.06);
  color: var(--cyan);
}

.public-article-grid {
  display: grid;
  max-width: var(--max-width);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.public-article-card {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  padding: 29px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 16, 27, 0.52);
  transition:
    background 0.35s ease,
    transform 0.35s ease;
}

.public-article-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  content: "";
  transition: width 0.4s ease;
}

.public-article-card::after {
  position: absolute;
  right: -75px;
  bottom: -75px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(100, 244, 228, 0.06);
  border-radius: 50%;
  box-shadow: 0 0 0 28px rgba(74, 125, 255, 0.02);
  content: "";
}

.public-article-card:hover {
  z-index: 2;
  background:
    radial-gradient(circle at 100% 100%, rgba(100, 244, 228, 0.08), transparent 42%),
    #0a1a29;
  transform: translateY(-4px);
}

.public-article-card:hover::before {
  width: 100%;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--subtle);
  font-size: 8px;
  letter-spacing: 0.12em;
}

.card-meta span {
  color: var(--cyan);
}

.public-article-card h2 {
  display: -webkit-box;
  overflow: hidden;
  margin-top: 52px;
  color: #e1edf5;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.public-article-card p {
  display: -webkit-box;
  overflow: hidden;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.card-foot {
  position: absolute;
  right: 29px;
  bottom: 25px;
  left: 29px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #4e6679;
  font-size: 8px;
  letter-spacing: 0.13em;
}

.card-foot i {
  color: var(--cyan);
  font-size: 16px;
  font-style: normal;
  transition: transform 0.25s ease;
}

.public-article-card:hover .card-foot i {
  transform: translateX(4px);
}

.content-loading,
.content-empty,
.content-error {
  display: grid;
  min-height: 330px;
  place-content: center;
  justify-items: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--subtle);
  font-size: 11px;
  letter-spacing: 0.12em;
  grid-column: 1 / -1;
}

.content-loading i {
  width: 28px;
  height: 28px;
  margin-bottom: 15px;
  border: 1px solid rgba(100, 244, 228, 0.15);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: contentSpin 0.9s linear infinite;
}

.content-empty strong,
.content-error strong {
  color: #b8c9d4;
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0;
}

.content-empty p,
.content-error p {
  margin-top: 8px;
  letter-spacing: 0;
}

.content-empty a,
.content-error a {
  margin-top: 20px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.article-detail-main {
  min-height: calc(100vh - 112px);
  padding-top: 78px;
}

.detail-progress {
  position: fixed;
  z-index: 51;
  top: 77px;
  right: 0;
  left: 0;
  height: 1px;
  background: rgba(128, 194, 226, 0.08);
}

.detail-progress i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 8px rgba(100, 244, 228, 0.3);
}

.public-article {
  width: min(860px, calc(100% - 56px));
  margin: 0 auto;
  padding: 80px 0 115px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  color: var(--subtle);
  font-size: 10px;
  letter-spacing: 0.08em;
  transition: color 0.2s ease;
}

.back-link:hover {
  color: var(--cyan);
}

.public-article-head {
  padding: 72px 0 60px;
}

.detail-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--subtle);
  font-size: 9px;
  letter-spacing: 0.13em;
}

.detail-meta span {
  color: var(--cyan);
}

.detail-meta time {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.public-article-head h1 {
  margin-top: 25px;
  font-size: clamp(44px, 6vw, 76px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.22;
}

.public-article-head > p {
  max-width: 720px;
  margin-top: 28px;
  padding-left: 20px;
  border-left: 1px solid var(--cyan);
  color: var(--muted);
  font-size: 16px;
  line-height: 1.95;
}

.article-divider {
  display: flex;
  height: 35px;
  align-items: center;
  gap: 15px;
  padding: 0 13px;
  border: 1px solid var(--line);
  color: var(--subtle);
  font-size: 7px;
  letter-spacing: 0.16em;
}

.article-divider i {
  height: 1px;
  flex: 1;
  background: linear-gradient(90deg, rgba(100, 244, 228, 0.3), rgba(74, 125, 255, 0.1));
}

.article-divider b {
  color: var(--cyan);
  font-weight: 500;
}

.public-content {
  margin-top: 65px;
  color: #b9cad6;
  font-size: 16px;
  line-height: 2.08;
}

.article-content h1,
.article-content h2,
.article-content h3 {
  margin: 2.1em 0 0.75em;
  color: var(--text);
  font-weight: 500;
  line-height: 1.42;
}

.article-content h1 {
  font-size: 34px;
}

.article-content h2 {
  font-size: 27px;
}

.article-content h3 {
  font-size: 21px;
}

.article-content p {
  margin: 1.2em 0;
}

.article-content strong {
  color: #e4f1f8;
  font-weight: 600;
}

.article-content ul {
  margin: 1.2em 0;
  padding-left: 1.4em;
}

.article-content li {
  position: relative;
  margin: 0.5em 0;
}

.article-content li::before {
  position: absolute;
  top: 0.92em;
  left: -1.25em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 7px rgba(100, 244, 228, 0.4);
  content: "";
}

.article-content blockquote {
  margin: 1.8em 0;
  padding: 13px 0 13px 23px;
  border-left: 2px solid var(--blue);
  color: #91a9ba;
  font-size: 17px;
}

.article-content code {
  padding: 2px 6px;
  border: 1px solid var(--line);
  background: #0b1b2a;
  color: var(--cyan);
  font-size: 0.9em;
}

.article-content pre {
  overflow-x: auto;
  margin: 1.7em 0;
  padding: 22px;
  border: 1px solid var(--line);
  background: #071521;
}

.article-content pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.detail-end {
  display: grid;
  min-height: 350px;
  place-content: center;
  justify-items: center;
  padding: 70px 28px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 100%, rgba(52, 116, 184, 0.13), transparent 48%),
    #06101a;
  text-align: center;
}

.detail-end > span {
  color: var(--cyan);
  font-size: 8px;
  letter-spacing: 0.2em;
}

.detail-end h2 {
  margin-top: 17px;
  font-size: clamp(30px, 4vw, 48px);
}

.detail-end > div {
  display: flex;
  gap: 10px;
  margin-top: 30px;
}

.detail-end a {
  min-height: 43px;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  color: #aec0cc;
  font-size: 11px;
}

.detail-end a:last-child {
  border-color: rgba(100, 244, 228, 0.38);
  color: var(--cyan);
}

@keyframes contentSpin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 900px) {
  .content-body .nav.open {
    backdrop-filter: none;
  }

  .content-hero {
    padding: 140px 22px 80px;
  }

  .content-hero-grid {
    gap: 40px;
    grid-template-columns: 1fr;
  }

  .content-hero-grid > p {
    max-width: 620px;
  }

  .content-signal {
    margin-top: 55px;
  }

  .article-library {
    padding: 70px 22px 100px;
  }

  .public-article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .public-article {
    width: min(760px, calc(100% - 44px));
  }
}

@media (max-width: 620px) {
  .content-hero h1 {
    font-size: clamp(52px, 15vw, 70px);
  }

  .content-signal > span {
    display: none;
  }

  .library-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .category-filter {
    justify-content: flex-start;
  }

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

  .public-article-card {
    min-height: 300px;
    padding: 25px;
  }

  .public-article-card h2 {
    margin-top: 42px;
  }

  .public-article {
    width: calc(100% - 44px);
    padding-top: 55px;
  }

  .public-article-head {
    padding: 58px 0 48px;
  }

  .public-article-head h1 {
    font-size: clamp(39px, 12vw, 56px);
  }

  .public-article-head > p,
  .public-content {
    font-size: 14px;
  }

  .public-content {
    margin-top: 48px;
  }

  .article-content h1 {
    font-size: 28px;
  }

  .article-content h2 {
    font-size: 23px;
  }

  .detail-end > div {
    width: 100%;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .content-loading i {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
  }
}