.page-news {
  display: block;
}

.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  border-radius: 6px;
}

/* 面包屑 */
.page-news .tn-crumb {
  padding-top: 28px;
}

.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
  color: var(--gray);
}

.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

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

/* 首屏 */
.page-news .tn-hero {
  padding: 30px 0 36px;
}

.page-news .tn-hero__kicker {
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--blue);
  margin: 0 0 16px;
}

.page-news .tn-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.05rem, 7.2vw, 4.4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 20px;
  max-width: 19ch;
}

.page-news .tn-hero__lead {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--ink);
  max-width: 60ch;
  margin: 0 0 26px;
}

.page-news .tn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 状态面板 */
.page-news .tn-status {
  padding-bottom: 6px;
}

.page-news .tn-status__panel {
  background: var(--console);
  border-radius: 12px 12px 28px 12px;
  padding: 20px 20px 24px;
  color: var(--paper);
}

.page-news .tn-status__line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 0.9375rem;
  color: var(--paper);
}

.page-news .tn-status__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(57, 224, 142, 0.18);
  animation: tn-breathe 2.4s var(--ease) infinite;
  flex: none;
}

@keyframes tn-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.42; }
}

.page-news .tn-status__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin: 0;
}

.page-news .tn-status__cell dt {
  font-size: 0.8125rem;
  color: rgba(251, 252, 254, 0.6);
  margin-bottom: 6px;
}

.page-news .tn-status__cell dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 1.375rem;
  color: var(--paper);
}

/* 主体两栏 */
.page-news .tn-board {
  display: grid;
  gap: 36px;
  padding-top: 44px;
}

.page-news .tn-stream {
  min-width: 0;
}

.page-news .tn-side__label {
  font-family: var(--font-num);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--gray);
  margin: 0 0 12px;
}

.page-news .tn-cats {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .tn-cats a {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news .tn-cats a:hover {
  background: var(--blue-tint);
  border-color: var(--blue);
  transform: translateX(4px);
}

.page-news .tn-cats .num {
  color: var(--blue);
  font-size: 0.75rem;
}

.page-news .tn-side__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 0.9375rem;
}

.page-news .tn-side__links a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  display: inline-block;
}

.page-news .tn-side__links a:hover {
  border-bottom-color: var(--blue);
}

/* 区块通用 */
.page-news .tn-block {
  padding-bottom: 48px;
}

.page-news .tn-block__head {
  margin-bottom: 20px;
}

.page-news .tn-block h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  line-height: 1.26;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-news .tn-block__note {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--gray);
  max-width: 62ch;
}

.page-news .tn-subhead {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ink);
  margin: 4px 0 14px;
}

/* 图片 */
.page-news .tn-figure {
  margin: 0 0 26px;
  border-radius: 12px 12px 24px 12px;
  overflow: hidden;
  background: var(--blue-tint);
  border: 1px solid var(--line);
}

.page-news .tn-figure img {
  width: 100%;
  object-fit: cover;
}

.page-news .tn-figure figcaption {
  padding: 12px 16px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gray);
  background: var(--paper);
}

/* 更新速览列表 */
.page-news .tn-feed {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .tn-feed__item {
  border-bottom: 1px solid var(--line);
}

.page-news .tn-item__summary {
  position: relative;
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: center;
  padding: 14px 4px 14px 14px;
  cursor: pointer;
  list-style: none;
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

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

.page-news .tn-item__summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--orange);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.25s var(--ease);
}

.page-news .tn-item__summary::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 1rem;
  color: var(--blue);
  text-align: center;
}

.page-news .tn-item[open] > .tn-item__summary::after {
  content: "−";
}

.page-news .tn-item__summary:hover,
.page-news .tn-item[open] > .tn-item__summary {
  transform: translateX(4px);
  background: var(--blue-tint);
}

.page-news .tn-item__summary:hover::before,
.page-news .tn-item[open] > .tn-item__summary::before {
  transform: scaleY(1);
}

.page-news .tn-item__time {
  font-family: var(--font-num);
  font-size: 0.8125rem;
  color: var(--gray);
}

.page-news .tn-item__title {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-news .tn-item__body {
  padding: 0 16px 18px 16px;
}

.page-news .tn-item__body p {
  margin: 0 0 10px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .tn-item__link {
  font-size: 0.875rem;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* 更新日志周次分组 */
.page-news .tn-week {
  position: relative;
  margin-top: 28px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-news .tn-week::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 84px;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
  transform: skewX(-30deg);
  transform-origin: left center;
}

.page-news .tn-week__title {
  font-family: var(--font-num);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--blue);
  margin: 0 0 12px;
}

.page-news .tn-week__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .tn-week__list li {
  position: relative;
  padding: 12px 0 12px 18px;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .tn-week__list li:last-child {
  border-bottom: 0;
}

.page-news .tn-week__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 8px;
  background: var(--blue-tint);
  border: 1px solid var(--blue);
  transform: rotate(45deg);
}

.page-news .tn-week__k {
  font-weight: 600;
  color: var(--ink);
  margin-right: 8px;
}

/* 版本对照专题 */
.page-news .tn-block--feature {
  position: relative;
  margin: 0 0 52px;
  padding: 26px 20px 32px;
  border-radius: 14px 14px 40px 14px;
  overflow: hidden;
  color: var(--paper);
  background:
    radial-gradient(120% 100% at 6% 0%, rgba(27, 92, 255, 0.55) 0%, rgba(27, 92, 255, 0) 58%),
    radial-gradient(90% 90% at 100% 4%, rgba(122, 91, 255, 0.5) 0%, rgba(122, 91, 255, 0) 62%),
    radial-gradient(80% 80% at 62% 108%, rgba(255, 106, 31, 0.42) 0%, rgba(255, 106, 31, 0) 60%),
    var(--console);
}

.page-news .tn-block--feature h2 {
  color: var(--paper);
  margin-bottom: 12px;
}

.page-news .tn-block--feature .tn-block__note {
  color: rgba(251, 252, 254, 0.74);
  margin-bottom: 22px;
}

.page-news .tn-feature__tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 12px;
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--console);
  background: var(--green);
  border-radius: 999px;
}

.page-news .tn-feature__figure {
  margin: 0 0 24px;
  border-radius: 10px 10px 24px 10px;
  overflow: hidden;
  border: 1px solid rgba(251, 252, 254, 0.16);
}

.page-news .tn-feature__figure img {
  width: 100%;
  object-fit: cover;
}

.page-news .tn-issues {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .tn-issues li {
  padding: 16px 18px 18px;
  border: 1px solid rgba(251, 252, 254, 0.18);
  border-radius: 10px 10px 22px 10px;
  background: rgba(251, 252, 254, 0.05);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news .tn-issues li:hover {
  transform: translateY(-3px);
  border-color: rgba(57, 224, 142, 0.6);
}

.page-news .tn-issue__no {
  font-family: var(--font-num);
  font-size: 0.8125rem;
  color: var(--green);
}

.page-news .tn-issue__title {
  margin: 8px 0 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--paper);
}

.page-news .tn-issue__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(251, 252, 254, 0.76);
}

.page-news .tn-feature__more {
  display: inline-block;
  margin-top: 24px;
  padding: 11px 20px;
  border-radius: 10px;
  background: var(--orange);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.25s var(--ease);
}

.page-news .tn-feature__more:hover {
  transform: translateY(-3px);
}

/* 回访三步 */
.page-news .tn-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .tn-steps li {
  position: relative;
  padding: 20px 18px 22px;
  background: var(--blue-tint);
  border: 1px solid var(--line);
  border-radius: 12px 12px 24px 12px;
  overflow: hidden;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news .tn-steps li:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
}

.page-news .tn-steps li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
  transform: skewX(-30deg);
  transform-origin: left center;
}

.page-news .tn-steps__no {
  display: block;
  font-family: var(--font-num);
  font-size: 1.5rem;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-news .tn-steps__name {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
}

.page-news .tn-steps p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .tn-pitfalls {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .tn-pitfalls li {
  padding: 14px 16px 14px 18px;
  background: var(--warm);
  border-left: 3px solid var(--orange);
  border-radius: 0 10px 10px 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink);
}

/* 栏目与标签 */
.page-news .tn-tags {
  padding-top: 8px;
  padding-bottom: 12px;
}

.page-news .tn-cats-grid {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-news .tn-cats-grid > li {
  min-width: 0;
}

.page-news .tn-card {
  display: block;
  height: 100%;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: 12px 12px 26px 12px;
  background: var(--paper);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-news .tn-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  box-shadow: var(--shadow-card);
}

.page-news .tn-card__no {
  display: block;
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--blue);
  margin-bottom: 10px;
}

.page-news .tn-card__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
}

.page-news .tn-card__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--gray);
}

.page-news .tn-tagcloud {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .tn-tagcloud li {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--blue-tint);
  border: 1px solid rgba(27, 92, 255, 0.16);
  color: var(--blue);
  font-size: 0.875rem;
}

.page-news .tn-tags__figure {
  margin: 0;
  border-radius: 12px 12px 30px 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--blue-tint);
}

.page-news .tn-tags__figure img {
  width: 100%;
  object-fit: cover;
}

/* 收尾 */
.page-news .tn-cta {
  position: relative;
  margin-top: 28px;
  padding: 52px 0 58px;
  overflow: hidden;
  border-top: 1px solid var(--line);
  background: linear-gradient(125deg, var(--blue-tint) 0%, var(--warm) 58%, var(--paper) 100%);
}

.page-news .tn-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--violet) 50%, var(--orange));
}

.page-news .tn-cta__inner {
  position: relative;
}

.page-news .tn-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.28;
  color: var(--ink);
  margin: 0 0 14px;
}

.page-news .tn-cta p {
  margin: 0 0 26px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  max-width: 58ch;
}

.page-news .tn-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 桌面端 */
@media (min-width: 760px) {
  .page-news .tn-status__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .tn-item__summary {
    grid-template-columns: 84px minmax(0, 1fr) 20px;
    padding: 16px 6px 16px 16px;
  }

  .page-news .tn-item__body {
    padding: 0 24px 20px 100px;
  }

  .page-news .tn-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-news .tn-cats-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .tn-cats-grid > li:nth-child(1) { grid-column: span 3; }
  .page-news .tn-cats-grid > li:nth-child(2) { grid-column: span 3; }
  .page-news .tn-cats-grid > li:nth-child(3) { grid-column: span 2; }
  .page-news .tn-cats-grid > li:nth-child(4) { grid-column: span 2; }
  .page-news .tn-cats-grid > li:nth-child(5) { grid-column: span 2; }

  .page-news .tn-block--feature {
    padding: 32px 28px 38px;
  }
}

@media (min-width: 980px) {
  .page-news .tn-board {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 56px;
  }

  .page-news .tn-side {
    position: sticky;
    top: 32px;
    align-self: start;
  }

  .page-news .tn-cats {
    display: block;
  }

  .page-news .tn-cats li + li {
    margin-top: 8px;
  }

  .page-news .tn-cats a {
    display: flex;
    width: 100%;
    box-sizing: border-box;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    animation: none !important;
    transition: none !important;
  }
}