.page-news {
  --news-gap: clamp(1.25rem, 3vw, 2.5rem);
  --news-pad: clamp(1rem, 2.4vw, 1.6rem);
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(3rem, 7vw, 5.5rem);
}

.page-news .breadcrumb {
  margin-bottom: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 首屏声明 ---------- */
.page-news .notes-masthead {
  position: relative;
  padding-block: clamp(0.5rem, 2vw, 1rem) clamp(1.5rem, 3.5vw, 2.5rem);
  border-bottom: 1px solid var(--line);
}

.page-news .notes-masthead::before {
  content: "";
  position: absolute;
  top: -1rem;
  left: -1rem;
  width: min(320px, 60vw);
  height: min(320px, 60vw);
  background: radial-gradient(circle at 30% 30%, var(--cyan-ghost), transparent 68%);
  pointer-events: none;
}

.page-news .notes-masthead h1 {
  position: relative;
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  font-size: clamp(2rem, 6vw, 3.5rem);
  color: var(--paper);
  max-width: 18ch;
}

.page-news .notes-masthead__lead {
  position: relative;
  margin: 1rem 0 0;
  max-width: 44ch;
  font-size: clamp(0.9375rem, 2.2vw, 1.0625rem);
  line-height: 1.8;
  color: var(--mist);
}

.page-news .notes-masthead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-news .notes-masthead__meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

/* ---------- 布局 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  margin-top: clamp(1.5rem, 3.5vw, 2.75rem);
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: minmax(210px, 250px) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-news .notes-rail {
    position: sticky;
    top: clamp(5.5rem, 9vh, 7rem);
    align-self: start;
  }
}

/* ---------- 左栏索引 ---------- */
.page-news .notes-index {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  padding: 0.85rem 0.8rem 0.7rem;
  backdrop-filter: blur(8px);
}

.page-news .notes-index__title {
  margin: 0 0 0.55rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-news .notes-index__list {
  display: grid;
  gap: 0.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .notes-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.55rem;
  border-left: 2px solid transparent;
  border-radius: 6px;
  font-size: 0.9375rem;
  line-height: 1.45;
  color: var(--paper);
  text-decoration: none;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .notes-index__link .index-num {
  font-size: 0.6875rem;
  color: var(--gold);
}

.page-news .notes-index__link:hover {
  background: var(--glass-2);
  border-left-color: var(--cyan);
}

.page-news .notes-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .rail-status {
  margin-top: 1rem;
  padding: 1rem 1rem 1.1rem;
  border-radius: var(--radius);
}

.page-news .rail-status__title {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .rail-status dl {
  display: grid;
  gap: 0.75rem;
  margin: 0;
}

.page-news .rail-status dl > div {
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.page-news .rail-status dl > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .rail-status dt {
  font-size: 0.75rem;
  color: var(--mist);
}

.page-news .rail-status dd {
  margin: 0.15rem 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--paper);
}

/* ---------- 章节标题 ---------- */
.page-news .notes-section {
  margin-top: clamp(2.25rem, 5vw, 3.5rem);
  scroll-margin-top: 6rem;
}

.page-news .notes-section:first-child {
  margin-top: 0;
}

.page-news .notes-headline {
  margin-bottom: clamp(1rem, 2.5vw, 1.6rem);
}

.page-news .notes-headline h2 {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.2;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  color: var(--paper);
}

.page-news .notes-headline__sub {
  margin: 0.65rem 0 0;
  max-width: 48ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 本月速览 ---------- */
.page-news .pulse-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.9rem;
}

@media (min-width: 640px) {
  .page-news .pulse-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .pulse-card--lead {
    grid-column: 1 / -1;
  }
}

.page-news .pulse-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-900);
  padding: 1.1rem 1.15rem 1.25rem;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .pulse-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.page-news .pulse-card h3 {
  margin: 0.35rem 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pulse-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .pulse-card__kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-news .pulse-card--gold {
  border-top: 2px solid var(--gold);
}

.page-news .pulse-card--gold .pulse-card__kicker {
  color: var(--gold);
}

.page-news .pulse-card--coral {
  border-top: 2px solid var(--coral);
}

.page-news .pulse-card--coral .pulse-card__kicker {
  color: var(--coral);
}

.page-news .pulse-card--cyan {
  border-top: 2px solid var(--cyan);
}

.page-news .pulse-card--lead {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 250px;
  padding: 0;
  overflow: hidden;
  border-color: var(--line-strong);
}

.page-news .pulse-card--lead img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.page-news .pulse-card--lead::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 20, 33, 0.2) 0%, rgba(6, 20, 33, 0.9) 76%);
}

.page-news .pulse-card--lead .pulse-card__body {
  position: relative;
  z-index: 1;
  padding: var(--news-pad);
  max-width: 54ch;
}

.page-news .pulse-card--lead h3 {
  font-size: clamp(1.15rem, 3vw, 1.5rem);
}

.page-news .pulse-card__link {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.875rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-soft);
  padding-bottom: 1px;
}

.page-news .pulse-card__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 时间线 ---------- */
.page-news .news-timeline {
  margin: 0 0 1.4rem;
  padding: 0.85rem 0.9rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-news .news-timeline__scroll {
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.page-news .news-timeline svg {
  display: block;
  width: 100%;
  min-width: 540px;
  height: auto;
}

.page-news .news-timeline figcaption {
  margin-top: 0.55rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 笔记列表 ---------- */
.page-news .note-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

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

.page-news .note summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.7rem;
  padding: 0.9rem 0.3rem;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.18s var(--ease);
}

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

.page-news .note summary:hover {
  background: var(--glass);
}

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

.page-news .note__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold);
  padding-top: 0.2rem;
}

.page-news .note__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}

.page-news .note__time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--mist);
}

.page-news .note__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .note__toggle {
  position: relative;
  width: 1.2rem;
  height: 1.2rem;
  margin-top: 0.15rem;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  flex: none;
}

.page-news .note__toggle::before,
.page-news .note__toggle::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-news .note__toggle::before {
  top: 50%;
  left: 26%;
  right: 26%;
  height: 1px;
}

.page-news .note__toggle::after {
  left: 50%;
  top: 26%;
  bottom: 26%;
  width: 1px;
  transform: scaleY(1);
  transform-origin: center;
  transition: transform 0.2s var(--ease);
}

.page-news .note[open] .note__toggle::after {
  transform: scaleY(0);
}

.page-news .note__detail {
  padding: 0 0.3rem 1.15rem;
}

.page-news .note__detail p {
  margin: 0 0 0.7rem;
  max-width: 48ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .note__detail a {
  font-size: 0.875rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-soft);
  padding-bottom: 1px;
}

.page-news .note__detail a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (min-width: 720px) {
  .page-news .note__detail {
    padding-left: 3.1rem;
  }
}

/* ---------- 列表尾图 ---------- */
.page-news .notes-strip {
  margin: 1.5rem 0 0;
}

.page-news .notes-strip img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-news .notes-strip figcaption {
  margin-top: 0.55rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 帮助资料 ---------- */
.page-news .archive-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

@media (min-width: 800px) {
  .page-news .archive-block {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 1.75rem;
  }
}

.page-news .archive-block__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .archive-block__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .archive-block__body p {
  margin: 0 0 0.9rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .archive-points {
  display: grid;
  gap: 0.6rem;
  margin: 1.1rem 0 1.3rem;
  padding: 0;
  list-style: none;
}

.page-news .archive-points li {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-news .archive-points__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--cyan);
  flex: none;
}

.page-news .archive-diagram {
  margin: 1.4rem 0 0;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
}

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

.page-news .archive-diagram figcaption {
  margin-top: 0.6rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 多屏服务 ---------- */
.page-news .screen-feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-900);
}

@media (min-width: 760px) {
  .page-news .screen-feature {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

.page-news .screen-feature__media {
  margin: 0;
  overflow: hidden;
  background: var(--ink-950);
}

.page-news .screen-feature__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

@media (min-width: 760px) {
  .page-news .screen-feature__media img {
    height: 100%;
  }
}

.page-news .screen-feature__body {
  padding: clamp(1.1rem, 3vw, 1.7rem);
}

.page-news .screen-feature__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--coral);
}

.page-news .screen-feature h3 {
  margin: 0.45rem 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  color: var(--paper);
}

.page-news .screen-feature__body > p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .screen-feature__list {
  display: grid;
  gap: 0.6rem;
  margin: 0 0 1.3rem;
  padding: 0;
  list-style: none;
}

.page-news .screen-feature__list li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 反馈 ---------- */
.page-news .feedback-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
  padding: clamp(1.2rem, 3vw, 1.9rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 12%, var(--cyan-ghost), transparent 58%),
    var(--ink-900);
}

@media (min-width: 800px) {
  .page-news .feedback-band {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-news .feedback-band__text p {
  margin: 0;
  max-width: 46ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .feedback-band__points {
  display: grid;
  gap: 0.4rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  color: var(--mist);
}

.page-news .feedback-band__points li {
  position: relative;
  padding-left: 1rem;
}

.page-news .feedback-band__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--coral);
}

.page-news .feedback-band__contact {
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

@media (min-width: 800px) {
  .page-news .feedback-band__contact {
    padding-top: 0;
    padding-left: 1.4rem;
    border-top: 0;
    border-left: 1px solid var(--line);
  }
}

.page-news .feedback-band__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-news .feedback-band__mail {
  margin: 0.45rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.9375rem, 2.4vw, 1.0625rem);
  word-break: break-word;
  color: var(--paper);
}

.page-news .feedback-band__note {
  margin: 0.6rem 0 1rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mist);
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pulse-card,
  .page-news .notes-index__link,
  .page-news .note__toggle::after {
    transition: none;
  }

  .page-news .pulse-card:hover {
    transform: none;
  }
}