.page-news {
  --news-pad: 22px;
  --news-track: 5px;
  --news-node: 5px;
  --news-date-w: 132px;
  background: var(--ink-900);
  color: var(--slate-100);
  font-family: var(--font-body);
}

.page-news .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 面包屑 ---------- */
.page-news .log-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--slate-400);
}
.page-news .log-crumb a {
  color: var(--slate-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}
.page-news .log-crumb a:hover {
  color: var(--mint-400);
  border-bottom-color: var(--mint-400);
}
.page-news .log-crumb__sep {
  color: var(--line-700);
}
.page-news .log-crumb [aria-current="page"] {
  color: var(--mint-400);
}

/* ---------- 首屏框景 ---------- */
.page-news .log-hero {
  padding: 22px 0 0;
  background-color: var(--ink-950);
  background-image:
    radial-gradient(120% 72% at 10% -12%, rgba(22, 115, 255, 0.22), transparent 62%),
    radial-gradient(80% 60% at 96% 8%, rgba(47, 224, 196, 0.08), transparent 60%);
  border-bottom: 1px solid var(--line-700);
}
.page-news .log-hero__inner {
  padding-bottom: 46px;
}
.page-news .log-hero__frame {
  position: relative;
  padding: 14px 18px 26px;
  border: 1px solid var(--line-700);
  border-radius: var(--radius-lg);
  background: rgba(10, 26, 47, 0.66);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.page-news .log-hero__frame::before,
.page-news .log-hero__frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 0 solid var(--mint-400);
  pointer-events: none;
}
.page-news .log-hero__frame::before {
  top: -1px;
  left: -1px;
  border-top-width: 2px;
  border-left-width: 2px;
  border-top-left-radius: var(--radius-lg);
}
.page-news .log-hero__frame::after {
  bottom: -1px;
  right: -1px;
  border-bottom-width: 2px;
  border-right-width: 2px;
  border-bottom-right-radius: var(--radius-lg);
}
.page-news .log-hero__rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed rgba(30, 58, 92, 0.9);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--slate-400);
}
.page-news .log-hero__code {
  color: var(--mint-400);
}
.page-news .log-hero__content {
  padding-top: 22px;
}
.page-news .log-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(2.05rem, 7.4vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--slate-100);
}
.page-news .log-hero__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-400);
}
.page-news .log-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
.page-news .log-jump a {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--line-700);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--slate-400);
  text-decoration: none;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}
.page-news .log-jump a:hover {
  color: var(--mint-400);
  border-bottom-color: var(--mint-400);
}

.page-news .log-hero__media {
  margin: 30px 0 0;
  border: 1px solid var(--line-700);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(135deg, #0d2340, #061020);
}
.page-news .log-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 区块通用 ---------- */
.page-news .log-section {
  padding: 52px 0 0;
}
.page-news .log-section:last-of-type {
  padding-bottom: 0;
}
.page-news .log-section__head {
  max-width: 46em;
  margin-bottom: 30px;
}
.page-news .log-section__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.45rem, 4.6vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.22;
  color: var(--slate-100);
}
.page-news .log-section__head p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 阅读方式 ---------- */
.page-news .log-methods {
  border-top: 1px solid var(--line-700);
}
.page-news .log-method {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(30, 58, 92, 0.6);
}
.page-news .log-method__num {
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--brand-500);
}
.page-news .log-method__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-22);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--slate-100);
}
.page-news .log-method__text {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-400);
}

.page-news .log-legend {
  display: grid;
  gap: 18px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
.page-news .log-legend__item {
  display: grid;
  gap: 8px;
  padding: 4px 0 4px 14px;
  border-left: 2px solid var(--line-700);
}
.page-news .log-legend__item--new {
  border-left-color: var(--brand-500);
}
.page-news .log-legend__item--fix {
  border-left-color: var(--mint-400);
}
.page-news .log-legend__item--opt {
  border-left-color: var(--slate-400);
}
.page-news .log-legend__item--known {
  border-left-color: var(--amber-400);
}
.page-news .log-legend__item p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--slate-400);
}

/* ---------- 变更类型标签 ---------- */
.page-news .log-tag {
  display: inline-flex;
  align-items: center;
  align-self: start;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.page-news .log-tag--new {
  color: var(--brand-300);
}
.page-news .log-tag--fix {
  color: var(--mint-400);
}
.page-news .log-tag--opt {
  color: var(--slate-400);
}
.page-news .log-tag--known {
  color: var(--amber-400);
}

/* ---------- 筛选工具条 ---------- */
.page-news .log-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  padding: 16px 0 20px;
  border-top: 1px solid var(--line-700);
}
.page-news .chip {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--slate-400);
  background: transparent;
  border: 1px solid var(--line-700);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease), background 0.15s var(--ease);
}
.page-news .chip:hover {
  color: var(--mint-400);
  border-color: var(--mint-400);
}
.page-news .chip:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: 2px;
}
.page-news .chip[aria-pressed="true"],
.page-news .chip.is-active {
  color: var(--ink-950);
  background: var(--mint-400);
  border-color: var(--mint-400);
}
.page-news .filter-status {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--slate-400);
}

/* ---------- 时间轴 ---------- */
.page-news .log-stream {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--news-pad);
}
.page-news .log-stream::before {
  content: "";
  position: absolute;
  left: var(--news-track);
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-700) 6%, var(--line-700) 94%, transparent);
}
.page-news .log-entry {
  position: relative;
  padding: 20px 0;
  border-top: 1px solid rgba(30, 58, 92, 0.55);
}
.page-news .log-entry:first-child {
  border-top: 0;
}
.page-news .log-entry::before {
  content: "";
  position: absolute;
  left: calc(var(--news-track) - var(--news-pad) - var(--news-node));
  top: 30px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--line-700);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-news .log-entry:hover::before,
.page-news .log-entry:focus-within::before {
  background: var(--mint-400);
  border-color: var(--mint-400);
}
.page-news .log-entry__when {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.page-news .log-entry__date {
  font-family: var(--font-serif);
  font-size: var(--fs-14);
  letter-spacing: 0.03em;
  color: var(--slate-100);
}
.page-news .log-entry__ver {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--brand-300);
}
.page-news .log-entry__body {
  display: grid;
  gap: 10px;
  justify-items: start;
}
.page-news .log-entry__text {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-100);
}
.page-news .log-entry__more {
  width: 100%;
}
.page-news .log-entry__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 2px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--slate-400);
  border-bottom: 1px dashed var(--line-700);
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
}
.page-news .log-entry__more summary::-webkit-details-marker {
  display: none;
}
.page-news .log-entry__more summary::after {
  content: "+";
  color: var(--mint-400);
  font-weight: 700;
}
.page-news .log-entry__more[open] summary::after {
  content: "−";
}
.page-news .log-entry__more summary:hover {
  color: var(--mint-400);
  border-bottom-color: var(--mint-400);
}
.page-news .log-entry__more summary:focus-visible {
  outline: 2px solid var(--mint-400);
  outline-offset: 2px;
}
.page-news .log-entry__checks {
  display: grid;
  gap: 6px;
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 0 18px;
}
.page-news .log-entry__checks li {
  position: relative;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--slate-400);
}
.page-news .log-entry__checks li::before {
  content: "—";
  position: absolute;
  left: -18px;
  color: var(--line-700);
}

/* ---------- 对照 ---------- */
.page-news .log-compare__figure {
  margin: 0 0 30px;
}
.page-news .log-compare {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-news .log-compare__row {
  display: grid;
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--line-700);
}
.page-news .log-compare__row:last-child {
  border-bottom: 1px solid var(--line-700);
}
.page-news .log-compare__cell {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding-left: 14px;
}
.page-news .log-compare__cell--known {
  border-left: 3px solid var(--amber-400);
}
.page-news .log-compare__cell--fix {
  border-left: 3px solid var(--mint-400);
}
.page-news .log-compare__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--slate-400);
}
.page-news .log-compare__desc {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-100);
}
.page-news .log-compare__arrow {
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  color: var(--slate-400);
  text-align: left;
  padding-left: 14px;
}
.page-news .log-note {
  margin-top: 26px;
  padding: 16px 18px;
  border-left: 3px solid var(--brand-500);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(22, 115, 255, 0.09);
}
.page-news .log-note p {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-100);
}

/* ---------- 系列索引 ---------- */
.page-news .log-series__figure {
  margin: 0 0 28px;
}
.page-news .log-series__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-700);
}
.page-news .log-series__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(30, 58, 92, 0.55);
  transition: background 0.15s var(--ease);
}
.page-news .log-series__row:hover {
  background: rgba(22, 115, 255, 0.07);
}
.page-news .log-series__name {
  flex: 0 0 auto;
  min-width: 4.6em;
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--brand-300);
}
.page-news .log-series__range {
  flex: 0 0 auto;
  min-width: 9.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.03em;
  color: var(--slate-400);
}
.page-news .log-series__focus {
  flex: 1 1 10em;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--slate-100);
}
.page-news .log-series__count {
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--mint-400);
}

/* ---------- 回访节奏 ---------- */
.page-news .log-cadence {
  display: grid;
  border-top: 1px solid var(--line-700);
}
.page-news .log-cadence__item {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(30, 58, 92, 0.55);
}
.page-news .log-cadence__num {
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mint-400);
}
.page-news .log-cadence__item h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-22);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--slate-100);
}
.page-news .log-cadence__item p {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-400);
}

.page-news .log-outro {
  display: grid;
  gap: 24px;
  margin-top: 42px;
  padding-top: 32px;
  border-top: 1px solid var(--line-700);
}
.page-news .log-outro__cursor {
  margin: 0;
  max-width: 240px;
  border: 1px solid var(--line-700);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(160deg, #0d2340, #061020);
}
.page-news .log-outro__text {
  display: grid;
  gap: 14px;
}
.page-news .log-outro__text p {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--slate-400);
}
.page-news .log-outro__text .link-quiet {
  color: var(--brand-300);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.page-news .log-outro__text .link-quiet:hover {
  color: var(--mint-400);
}

.page-news .log-end {
  margin: 46px 0 0;
  padding: 22px 0 56px;
  border-top: 1px solid var(--line-700);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--slate-400);
}
.page-news .log-end .link-quiet {
  color: var(--brand-300);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.page-news .log-end .link-quiet:hover {
  color: var(--mint-400);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .log-hero__frame {
    padding: 18px 30px 34px;
  }
  .page-news .log-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 28px;
  }
  .page-news .log-compare__arrow {
    padding-left: 26px;
  }
}

@media (min-width: 760px) {
  .page-news .log-method {
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: 28px;
    row-gap: 6px;
    align-items: start;
  }
  .page-news .log-method__num {
    grid-column: 1;
    grid-row: 1 / span 2;
    font-size: var(--fs-40);
  }
  .page-news .log-method__title {
    grid-column: 2;
  }
  .page-news .log-method__text {
    grid-column: 2;
  }
  .page-news .log-cadence__item {
    grid-template-columns: 66px minmax(0, 1fr);
    column-gap: 24px;
    row-gap: 6px;
    align-items: start;
  }
  .page-news .log-cadence__num {
    grid-column: 1;
    grid-row: 1 / span 2;
  }
  .page-news .log-cadence__item h3,
  .page-news .log-cadence__item p {
    grid-column: 2;
  }
}

@media (min-width: 860px) {
  .page-news .log-cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line-700);
    border-top: 0;
    border-bottom: 1px solid var(--line-700);
  }
  .page-news .log-cadence__item {
    display: block;
    padding: 26px 24px;
    border-bottom: 0;
    background: var(--ink-900);
  }
  .page-news .log-cadence__num {
    display: block;
    margin-bottom: 12px;
  }
  .page-news .log-cadence__item h3 {
    margin-bottom: 10px;
  }
  .page-news .log-outro {
    grid-template-columns: 240px minmax(0, 1fr);
    column-gap: 44px;
    align-items: start;
  }
  .page-news .log-outro__cursor {
    max-width: none;
  }
}

@media (min-width: 900px) {
  .page-news {
    --news-pad: 170px;
    --news-track: 148px;
  }
  .page-news .log-hero {
    padding-top: 30px;
  }
  .page-news .log-hero__frame {
    padding: 20px 40px 40px;
  }
  .page-news .log-hero__content {
    padding-top: 30px;
  }
  .page-news .log-legend {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .log-entry {
    padding: 24px 0;
  }
  .page-news .log-entry::before {
    top: 34px;
  }
  .page-news .log-entry__when {
    position: absolute;
    left: calc(-1 * var(--news-pad));
    top: 24px;
    width: var(--news-date-w);
    display: block;
    margin: 0;
    text-align: right;
  }
  .page-news .log-entry__date {
    display: block;
    font-size: var(--fs-16);
  }
  .page-news .log-entry__ver {
    display: block;
    margin-top: 8px;
  }
  .page-news .log-compare__row {
    grid-template-columns: minmax(0, 1fr) 56px minmax(0, 1fr);
    align-items: start;
    gap: 10px;
    padding: 26px 0;
  }
  .page-news .log-compare__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding-left: 0;
  }
}

@media (min-width: 1080px) {
  .page-news .log-section {
    padding-top: 66px;
  }
  .page-news .log-series__range {
    min-width: 12em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .log-entry::before,
  .page-news .log-entry__more summary,
  .page-news .chip,
  .page-news .log-jump a,
  .page-news .log-crumb a,
  .page-news .log-series__row {
    transition: none;
  }
}