.page-news {
  padding: 0 0 64px;
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-body);
}

/* ===== 页面头部 ===== */
.page-news .news-hero {
  padding: 20px 0 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
  position: relative;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--green) 40%, transparent 70%);
}

.page-news .news-hero__badge {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-news .news-hero__time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.page-news .news-hero h1 {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  color: var(--text-main);
  line-height: 1.2;
}

.page-news .news-hero__desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 62em;
  margin: 0 0 20px;
}

.page-news .news-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 24px;
}

.page-news .filter-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-main);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-news .filter-tag:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ===== 章节标题微调 ===== */
.page-news .section {
  margin-bottom: 56px;
}

.page-news .section-head {
  border-left: 4px solid var(--gold);
  padding-left: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-news .news-section-titles h2 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 4px;
  line-height: 1.3;
}

.page-news .news-section-titles .section-desc {
  margin: 0;
}

/* ===== 时间线 ===== */
.page-news .news-timeline {
  position: relative;
  padding-left: 26px;
  margin-top: 36px;
}

.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--green) 0%, var(--cyan) 60%, var(--line) 100%);
}

.page-news .news-timeline__item {
  position: relative;
  margin-bottom: 24px;
  scroll-margin-top: 110px;
}

.page-news .news-timeline__marker {
  position: absolute;
  left: -24px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(163, 255, 18, 0.15);
  z-index: 2;
}

.page-news .news-timeline__card {
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.page-news .news-timeline__card summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.04), transparent);
  transition: background 0.25s ease;
}

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

.page-news .news-timeline__card summary:hover {
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.08), transparent);
}

.page-news .news-timeline__card summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  flex-shrink: 0;
  margin-left: auto;
  margin-top: -4px;
  transition: transform 0.3s ease, margin-top 0.3s ease;
}

.page-news .news-timeline__card details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.page-news .release-version {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
  background: rgba(255, 209, 102, 0.12);
  border: 1px solid rgba(255, 209, 102, 0.5);
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
  padding: 4px 12px 4px 10px;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.page-news .release-label {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

.page-news .release-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.page-news .release-body {
  border-top: 1px solid var(--line);
  padding: 20px;
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.012) 0px,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 3px
    );
}

.page-news .news-timeline__card details[open] .release-body {
  animation: page-news-fade-in 0.3s ease;
}

@keyframes page-news-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-news .release-body__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news .release-body__time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.page-news .release-body p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
  margin: 0 0 12px;
}

.page-news .release-body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
}

.page-news .release-body li {
  color: var(--text-main);
  font-size: 13px;
  line-height: 1.6;
}

.page-news .release-cover {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
  margin-bottom: 18px;
}

/* ===== 专题区 ===== */
.page-news .specials-grid {
  display: grid;
  gap: 20px;
  margin-top: 36px;
}

.page-news .special-card {
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-news .special-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  border-color: rgba(0, 229, 255, 0.3);
}

.page-news .special-card__media {
  overflow: hidden;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}

.page-news .special-card__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.page-news .special-card:hover .special-card__media img {
  transform: scale(1.02);
}

.page-news .special-card__body {
  padding: 20px;
}

.page-news .special-card__body h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin: 12px 0 8px;
  line-height: 1.3;
}

.page-news .special-card__body p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.page-news .special-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.page-news .special-card__link:hover {
  color: var(--green);
}

/* ===== 里程碑 ===== */
.page-news .milestone-list {
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-news .milestone-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  position: relative;
}

.page-news .milestone-item::before {
  content: "";
  flex-shrink: 0;
  width: 3px;
  height: 24px;
  background: var(--gold);
  border-radius: 2px;
  align-self: flex-start;
  margin-top: 4px;
}

.page-news .milestone-year {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
  min-width: 58px;
}

.page-news .milestone-body h3 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 6px;
  line-height: 1.3;
}

.page-news .milestone-body p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 延伸阅读 ===== */
.page-news .news-more {
  margin-top: 8px;
}

.page-news .news-more__inner {
  background: linear-gradient(135deg, var(--surface-1) 0%, var(--bg) 70%);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 20px;
  position: relative;
  overflow: hidden;
}

.page-news .news-more__inner::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(163, 255, 18, 0.1), transparent 70%);
}

.page-news .news-more__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 8px;
  position: relative;
}

.page-news .news-more__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0 0 18px;
  position: relative;
}

.page-news .news-more__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-news .news-hero h1 {
    font-size: 42px;
  }

  .page-news .news-hero__desc {
    font-size: 15px;
  }

  .page-news .news-section-titles h2 {
    font-size: 26px;
  }

  .page-news .specials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .milestone-list {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-news .news-more__inner {
    padding: 32px 36px;
  }
}

@media (min-width: 960px) {
  .page-news .news-timeline {
    padding-left: 0;
  }

  .page-news .news-timeline::before {
    left: 50%;
    margin-left: -1px;
    background: linear-gradient(180deg, var(--green) 0%, var(--cyan) 60%, var(--line) 100%);
  }

  .page-news .news-timeline__item {
    width: calc(50% - 30px);
    margin-right: auto;
    margin-left: 0;
  }

  .page-news .news-timeline__item:nth-child(even) {
    margin-left: auto;
    margin-right: 0;
  }

  .page-news .news-timeline__marker {
    left: auto;
    right: -37px;
    top: 26px;
    width: 14px;
    height: 14px;
  }

  .page-news .news-timeline__item:nth-child(even) .news-timeline__marker {
    right: auto;
    left: -37px;
  }

  .page-news .specials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .special-card:nth-child(2) {
    transform: translateY(18px);
  }

  .page-news .special-card:nth-child(2):hover {
    transform: translateY(16px);
  }

  .page-news .milestone-list {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .page-news .milestone-item {
    flex-direction: column;
  }

  .page-news .milestone-item::before {
    width: 35px;
    height: 3px;
  }
}