.page-news {
  --news-red: #C8102E;
  --news-red-dark: #A00D24;
  --news-gold: #E5B80B;
  --news-gold-light: #F0C830;
  --news-brick: #3A3A3C;
  --news-brick-dark: #232325;
  --news-paper: #F4F1E8;
  --news-paper-dark: #E5DFCF;
  --news-blue: #1E3A5F;
  --news-neon: #6D5BB4;
  --news-green: #2F9E62;
  --news-orange: #E58A2A;
  --news-ink: #1A1A1A;
  --news-gray: #5A5A5E;
  --news-font-display: "Noto Serif SC", "Source Han Serif SC", "STZhongsong", Georgia, "Times New Roman", serif;
  --news-font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
  --news-font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  background: var(--news-paper);
  color: var(--news-ink);
  font-family: var(--news-font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-news .container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 32px);
}

.page-news img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
}

.page-news__intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-block: 28px 20px;
}

.page-news__statement {
  position: relative;
}

.page-news__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--news-neon);
  margin: 0 0 10px;
  padding-left: 14px;
  border-left: 3px solid var(--news-neon);
}

.page-news__title {
  font-family: var(--news-font-display);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 14px;
  letter-spacing: 0.01em;
  color: var(--news-ink);
}

.page-news__lead {
  font-size: 1rem;
  color: var(--news-gray);
  max-width: 60ch;
  margin: 0;
}

.page-news__brief {
  position: relative;
  background: var(--news-brick);
  color: var(--news-paper);
  padding: 18px;
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-news__brief-img {
  display: block;
  width: 100%;
  margin: 14px 0 10px;
  border-radius: 2px;
}

.page-news__brief-time {
  font-family: var(--news-font-mono);
  font-size: 0.75rem;
  color: var(--news-gold);
  margin: 0 0 4px;
}

.page-news__brief-text {
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.65;
}

.page-news__brief-text strong {
  color: var(--news-gold-light);
  font-weight: 700;
}

.page-news__brief::before {
  content: "";
  position: absolute;
  top: 38px;
  right: 22px;
  width: 80px;
  height: 5px;
  background: repeating-linear-gradient(-45deg, var(--news-gold) 0 6px, transparent 6px 12px);
  opacity: 0.7;
  pointer-events: none;
}

.page-news__wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px 40px;
  padding-block: 24px 64px;
}

.page-news__side {
  position: relative;
}

.page-news__side-inner {
  background: var(--news-paper-dark);
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 4px;
  padding: 20px;
}

.page-news__side-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--news-brick);
  margin: 0 0 10px;
}

.page-news__side-label--mt {
  margin-top: 24px;
}

.page-news__toc {
  list-style: none;
  margin: 0 0 4px;
  padding: 0;
}

.page-news__toc li {
  border-bottom: 1px dashed rgba(26, 26, 26, 0.12);
}

.page-news__toc li:last-child {
  border-bottom: none;
}

.page-news__toc a {
  display: block;
  padding: 8px 0;
  color: var(--news-ink);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1), padding-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-news__toc a:hover {
  color: var(--news-neon);
  padding-left: 6px;
}

.page-news__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news__filter {
  appearance: none;
  background: transparent;
  border: 1px solid rgba(26, 26, 26, 0.24);
  color: var(--news-ink);
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--news-font-body);
  padding: 5px 10px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-news__filter:hover {
  border-color: var(--news-neon);
  color: var(--news-neon);
}

.page-news__filter.is-active {
  background: var(--news-neon);
  border-color: var(--news-neon);
  color: var(--news-paper);
}

.page-news__side-note {
  font-size: 0.75rem;
  color: var(--news-gray);
  line-height: 1.5;
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(26, 26, 26, 0.1);
}

.page-news__content {
  min-width: 0;
}

.page-news__section {
  margin-bottom: 48px;
  scroll-margin-top: 16px;
}

.page-news__section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.page-news__section-head--compact {
  margin-bottom: 16px;
}

.page-news__h2 {
  font-family: var(--news-font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.65rem);
  font-weight: 800;
  margin: 0;
}

.page-news__timeline {
  position: relative;
  padding-left: 18px;
}

.page-news__timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 0;
  border-left: 2px dashed var(--news-gold);
  opacity: 0.6;
}

.page-news__entry {
  position: relative;
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 6px 10px;
  margin-bottom: 28px;
}

.page-news__entry-marker {
  grid-column: 1;
  grid-row: 1 / 3;
  z-index: 1;
}

.page-news__entry-marker span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-family: var(--news-font-display);
  font-size: 0.625rem;
  font-weight: 900;
  color: var(--news-paper);
  background: var(--news-brick);
  border-radius: 3px;
  border: 2px solid var(--news-paper);
  box-shadow: 0 0 0 1px var(--news-gold);
}

.page-news__entry-time {
  grid-column: 2;
  font-family: var(--news-font-mono);
  font-size: 0.7rem;
  color: var(--news-gray);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.page-news__entry-body {
  grid-column: 2;
  background: #FFFFFF;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-left: 4px solid var(--news-gray);
  border-radius: 4px;
  padding: 16px 16px 12px;
  box-shadow: 0 2px 8px rgba(26, 26, 26, 0.05);
  transition: box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-news__entry-body:hover {
  box-shadow: 0 4px 16px rgba(26, 26, 26, 0.1);
  transform: translateY(-2px);
}

.page-news__entry--version .page-news__entry-body {
  border-left-color: var(--news-red);
}

.page-news__entry--rule .page-news__entry-body {
  border-left-color: var(--news-gold);
}

.page-news__entry--support .page-news__entry-body {
  border-left-color: var(--news-orange);
}

.page-news__entry--device .page-news__entry-body {
  border-left-color: var(--news-green);
}

.page-news__entry--platform .page-news__entry-body {
  border-left-color: var(--news-neon);
}

.page-news__entry--help .page-news__entry-body {
  border-left-color: var(--news-blue);
}

.page-news__entry-topline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.page-news__entry-cat {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--news-paper);
  background: var(--news-brick);
  padding: 2px 8px;
  border-radius: 2px;
}

.page-news__entry--version .page-news__entry-cat {
  background: var(--news-red);
}

.page-news__entry--rule .page-news__entry-cat {
  background: var(--news-blue);
}

.page-news__entry--support .page-news__entry-cat {
  background: var(--news-orange);
}

.page-news__entry--device .page-news__entry-cat {
  background: var(--news-green);
}

.page-news__entry--platform .page-news__entry-cat {
  background: var(--news-neon);
}

.page-news__entry--help .page-news__entry-cat {
  background: var(--news-blue);
}

.page-news__entry-title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 6px 0 8px;
  line-height: 1.4;
}

.page-news__entry-title a {
  color: var(--news-ink);
  text-decoration: none;
  transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-news__entry-title a:hover {
  color: var(--news-red);
}

.page-news__entry-media {
  margin: 10px 0;
}

.page-news__entry-media img {
  display: block;
  width: 100%;
  border-radius: 4px;
}

.page-news__entry-preview {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--news-gray);
  margin: 0;
}

.page-news__details {
  margin-top: 10px;
  border-top: 1px dashed rgba(26, 26, 26, 0.14);
  padding-top: 6px;
}

.page-news__details summary {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--news-neon);
  cursor: pointer;
  list-style: none;
  padding: 6px 0;
  user-select: none;
  transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.page-news__details summary::before {
  content: "＋";
  display: inline-block;
  margin-right: 6px;
  font-family: var(--news-font-mono);
  font-size: 0.8125rem;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-news__details[open] summary::before {
  content: "－";
}

.page-news__details summary:hover {
  color: var(--news-red);
}

.page-news__details-body {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--news-ink);
  padding: 6px 0 4px;
}

.page-news__details-body p {
  margin: 0 0 10px;
}

.page-news__details-body p:last-child {
  margin-bottom: 0;
}

.page-news__observe {
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.04) 0%, rgba(30, 58, 95, 0.01) 50%, rgba(229, 184, 11, 0.05) 100%);
  border-top: 2px solid var(--news-blue);
  border-bottom: 2px solid var(--news-gold);
  padding: 24px 20px;
  position: relative;
}

.page-news__observe::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 90px;
  height: 90px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M0 0 L100 0 L100 100 Z' fill='%23E5B80B' fill-opacity='0.06'/%3E%3C/svg%3E") no-repeat;
  background-size: cover;
  pointer-events: none;
}

.page-news__observe-content p {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0 0 14px;
  color: var(--news-ink);
}

.page-news__observe-content p:last-child {
  margin-bottom: 0;
}

.page-news__rule-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.page-news__rule-card {
  background: #FFFFFF;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 4px;
  padding: 16px 10px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(26, 26, 26, 0.04);
}

.page-news__rule-count {
  font-family: var(--news-font-display);
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--news-red);
  line-height: 1;
  margin: 0 0 6px;
}

.page-news__rule-name {
  font-size: 0.875rem;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--news-ink);
}

.page-news__rule-desc {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--news-gray);
  margin: 0;
}

.page-news__rule-summary {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--news-gray);
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--news-gold);
}

.page-news__cta {
  margin-top: 8px;
}

.page-news__cta-inner {
  position: relative;
  background: var(--news-brick);
  color: var(--news-paper);
  padding: 28px 24px;
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-news__cta-inner::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(-45deg, var(--news-gold) 0 8px, transparent 8px 16px);
}

.page-news__cta-title {
  font-family: var(--news-font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.625rem);
  font-weight: 800;
  margin: 0 0 10px;
}

.page-news__cta-text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 241, 232, 0.86);
  margin: 0 0 18px;
  max-width: 52ch;
}

.page-news__cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news__cta-links .btn--primary {
  background: var(--news-red);
  color: var(--news-paper);
  border: 1px solid var(--news-red);
}

.page-news__cta-links .btn--ghost {
  background: transparent;
  color: var(--news-gold);
  border: 1px solid var(--news-gold);
}

.page-news__cta-links .btn--ghost:hover {
  background: rgba(229, 184, 11, 0.12);
}

@media (min-width: 640px) {
  .page-news__intro-grid {
    grid-template-columns: 7fr 5fr;
    gap: 30px;
    align-items: start;
  }

  .page-news__brief {
    margin-top: 30px;
  }

  .page-news__rule-card {
    padding: 20px 14px;
  }

  .page-news__rule-count {
    font-size: 2.5rem;
  }
}

@media (min-width: 900px) {
  .page-news__wrap {
    grid-template-columns: 260px 1fr;
    gap: 40px;
    align-items: start;
  }

  .page-news__side-inner {
    position: sticky;
    top: 20px;
  }

  .page-news__entry {
    grid-template-columns: 30px 1fr;
    gap: 6px 14px;
  }

  .page-news__entry-marker span {
    width: 24px;
    height: 24px;
    font-size: 0.6875rem;
  }
}

@media (max-width: 380px) {
  .page-news__brief::before {
    display: none;
  }

  .page-news__rule-grid {
    grid-template-columns: 1fr 1fr;
  }

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