.page-news {
  --page-pad: 20px;
  background: var(--night-black);
  color: var(--cloud-white);
  font-family: var(--sans-font);
  line-height: 1.6;
}

.page-news a {
  color: var(--data-cyan);
  text-decoration: none;
}

.page-news a:hover {
  color: var(--volt-green);
}

.page-news .page-hero {
  position: relative;
  padding: 96px var(--page-pad) 44px;
}

.page-news .hero-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono-font);
  font-size: 12px;
  color: var(--silver-gray);
}

.page-news .breadcrumb a {
  color: var(--data-cyan);
}

.page-news .hero-eyebrow {
  margin: 28px 0 0;
  font-family: var(--mono-font);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--volt-green);
}

.page-news h1 {
  margin: 14px 0 18px;
  font-size: clamp(44px, 10vw, 88px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.page-news .hero-lede {
  max-width: 720px;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver-gray);
}

.page-news .hero-lede strong {
  color: var(--data-cyan);
  font-weight: 500;
}

.page-news .hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 36px 0 0;
}

.page-news .metric-cell {
  display: flex;
  flex-direction: column-reverse;
  padding: 14px 16px;
  background: var(--deep-space);
  border-left: 2px solid var(--tech-blue);
}

.page-news .metric-cell dt {
  font-size: 12px;
  color: var(--silver-gray);
}

.page-news .metric-cell dd {
  margin: 0;
  font-family: var(--mono-font);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--volt-green);
}

.page-news .section-index {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 15px;
  line-height: 1.4;
  color: var(--tech-blue);
}

.page-news .section-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  max-width: var(--content-width);
  margin: 0 auto 28px;
}

.page-news .section-head h2 {
  margin: 0 0 6px;
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-news .section-note {
  margin: 0;
  font-size: 13px;
  color: var(--silver-gray);
}

.page-news .issue-section {
  position: relative;
  padding: 72px var(--page-pad);
  overflow: hidden;
}

.page-news .timeline-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-news .timeline-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
}

.page-news .filter-group {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin: 0 auto 28px;
}

.page-news .filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .filter-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .filter-label {
  display: inline-block;
  padding: 8px 16px;
  font-size: 13px;
  border: 1px solid var(--steel-blue);
  border-radius: 999px;
  background: var(--deep-space);
  color: var(--silver-gray);
  cursor: pointer;
  transition: background var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed);
}

.page-news .filter-radio:checked + .filter-label {
  background: var(--tech-blue);
  border-color: var(--tech-blue);
  color: var(--cloud-white);
}

.page-news .filter-radio:focus-visible + .filter-label {
  outline: 2px solid var(--volt-green);
  outline-offset: 2px;
}

.page-news .filter-radio:checked ~ .issue-timeline .news-item {
  display: block;
}

.page-news #nf-data:checked ~ .issue-timeline .news-item:not([data-category="data"]),
.page-news #nf-func:checked ~ .issue-timeline .news-item:not([data-category="func"]),
.page-news #nf-season:checked ~ .issue-timeline .news-item:not([data-category="season"]) {
  display: none;
}

.page-news .issue-timeline {
  position: relative;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 4px 0 0 20px;
  border-left: 1px solid var(--grid-line-bright);
}

.page-news .issue-timeline::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -20px;
  width: 2px;
  height: 40px;
  background: var(--volt-green);
  transform: rotate(24deg);
  transform-origin: top left;
}

.page-news .news-item {
  margin-bottom: 16px;
  background: var(--deep-space);
  border: 1px solid var(--steel-blue);
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.page-news .news-item:hover {
  border-color: var(--tech-blue);
}

.page-news .news-item[open] {
  border-color: var(--data-cyan);
  box-shadow: 6px 6px 0 rgba(0, 99, 247, 0.18);
}

.page-news .news-summary {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  column-gap: 12px;
  row-gap: 8px;
  align-items: center;
  padding: 16px;
  list-style: none;
  cursor: pointer;
}

.page-news .news-summary::-webkit-details-marker {
  display: none;
}

.page-news .news-index {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--mono-font);
  font-size: 13px;
  color: var(--tech-blue);
}

.page-news .news-time {
  grid-column: 2;
  grid-row: 1;
  text-align: right;
  font-family: var(--mono-font);
  font-size: 11px;
  color: var(--silver-gray);
}

.page-news .news-open {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
  font-family: var(--mono-font);
  font-size: 18px;
  line-height: 1;
  color: var(--silver-gray);
  transition: color var(--transition-speed), transform var(--transition-speed);
}

.page-news .news-item[open] .news-open {
  color: var(--volt-green);
  transform: rotate(45deg);
}

.page-news .news-headline {
  grid-column: 1 / -1;
  grid-row: 2;
  font-size: 16px;
  font-weight: 700;
  color: var(--cloud-white);
}

.page-news .tag {
  grid-column: 1 / -1;
  grid-row: 3;
  justify-self: start;
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border: 1px solid;
}

.page-news .tag-data {
  color: var(--data-cyan);
  border-color: rgba(0, 179, 214, 0.55);
}

.page-news .tag-func {
  color: var(--violet);
  border-color: rgba(123, 97, 255, 0.55);
}

.page-news .tag-season {
  color: var(--alert-orange);
  border-color: rgba(255, 139, 26, 0.55);
}

.page-news .news-detail {
  padding: 16px;
  border-top: 1px dashed var(--grid-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver-gray);
}

.page-news .news-detail p {
  margin: 0 0 10px;
}

.page-news .news-detail a {
  font-family: var(--mono-font);
  font-size: 13px;
  color: var(--volt-green);
}

.page-news .series-section,
.page-news .progress-section,
.page-news .register-section {
  padding: 72px var(--page-pad);
}

.page-news .series-section {
  background: linear-gradient(180deg, var(--night-black) 0%, var(--deep-space) 100%);
}

.page-news .series-layout {
  display: grid;
  gap: 28px;
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-news .series-cover img,
.page-news .progress-img img,
.page-news .register-img img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .series-list {
  display: grid;
  gap: 16px;
}

.page-news .series-card {
  position: relative;
  padding: 20px;
  background: var(--night-black);
  border: 1px solid var(--steel-blue);
  transition: border-color var(--transition-speed);
}

.page-news .series-card:hover {
  border-color: var(--tech-blue);
}

.page-news .series-no {
  display: inline-block;
  margin-bottom: 10px;
  padding-bottom: 2px;
  font-family: var(--mono-font);
  font-size: 12px;
  color: var(--data-cyan);
  border-bottom: 1px solid var(--grid-line-bright);
}

.page-news .series-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
}

.page-news .series-card p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver-gray);
}

.page-news .series-card .series-meta {
  margin: 0;
  font-family: var(--mono-font);
  font-size: 12px;
  color: var(--volt-green);
}

.page-news .progress-layout {
  display: grid;
  gap: 28px;
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-news .progress-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-news .stat-card {
  padding: 18px;
  background: var(--deep-space);
  border-left: 2px solid var(--tech-blue);
}

.page-news .stat-num {
  margin: 0 0 6px;
  font-family: var(--mono-font);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--volt-green);
}

.page-news .stat-label {
  margin: 0;
  font-size: 13px;
  color: var(--silver-gray);
}

.page-news .progress-track {
  height: 8px;
  overflow: hidden;
  background: var(--steel-blue);
}

.page-news .progress-fill {
  width: 64%;
  height: 100%;
  background: linear-gradient(90deg, var(--tech-blue), var(--volt-green));
  animation: newsFillGrow 1.4s var(--ease-out) both;
}

@keyframes newsFillGrow {
  from {
    width: 0;
  }
  to {
    width: 64%;
  }
}

.page-news .progress-caption {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--silver-gray);
}

.page-news .progress-img {
  margin-top: 20px;
}

.page-news .register-section {
  background: linear-gradient(160deg, var(--dark-blue) 0%, var(--deep-space) 60%);
}

.page-news .register-card {
  display: grid;
  gap: 28px;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 28px;
  background: var(--glass-bg);
  border: 1px solid var(--grid-line-bright);
  box-shadow: 12px 12px 0 rgba(0, 99, 247, 0.14);
}

.page-news .register-copy h2 {
  margin: 12px 0 12px;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-news .register-copy p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver-gray);
}

.page-news .register-steps {
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.page-news .register-steps li {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px dashed var(--grid-line);
  font-size: 14px;
  color: var(--cloud-white);
}

.page-news .register-steps span {
  font-family: var(--mono-font);
  font-weight: 800;
  color: var(--tech-blue);
}

.page-news .register-img {
  margin-top: 4px;
}

@media (min-width: 768px) {
  .page-news .page-hero {
    padding-top: 128px;
    padding-bottom: 56px;
  }

  .page-news .hero-inner {
    padding-top: 32px;
  }

  .page-news .hero-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .metric-cell dd {
    font-size: 32px;
  }

  .page-news .section-head h2 {
    font-size: 38px;
  }

  .page-news .news-summary {
    grid-template-columns: 70px 140px 1fr 120px 32px;
    align-items: center;
    padding: 20px;
  }

  .page-news .news-index {
    grid-column: 1;
    grid-row: 1;
  }

  .page-news .tag {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  .page-news .news-headline {
    grid-column: 3;
    grid-row: 1;
    font-size: 16px;
  }

  .page-news .news-time {
    grid-column: 4;
    grid-row: 1;
    text-align: right;
  }

  .page-news .news-open {
    grid-column: 5;
    grid-row: 1;
  }

  .page-news .news-detail {
    padding: 16px 20px 20px;
  }

  .page-news .progress-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-news .hero-lede {
    font-size: 16px;
  }

  .page-news .series-layout {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .page-news .series-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .progress-layout {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: center;
  }

  .page-news .register-card {
    grid-template-columns: 1fr 0.85fr;
    align-items: center;
    padding: 40px;
  }
}