.page-news {
  background: var(--mist-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-news .wrap {
  width: 100%;
  max-width: 1320px;
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.page-news .section {
  padding-inline: 0;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 64px) clamp(36px, 5vw, 72px);
  background: linear-gradient(155deg, var(--mist-50) 0%, var(--mist-100) 78%, var(--mist-200) 100%);
  overflow: hidden;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 0;
  width: clamp(96px, 16vw, 210px);
  aspect-ratio: 1 / 1;
  background: var(--orange);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-news .news-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-block-end: clamp(24px, 4vw, 44px);
}

.page-news .news-hero h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 6.6vw, 76px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-news .news-hero__lead {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--ink-700);
}

.page-news .news-pulse {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 20px;
  list-style: none;
  margin: clamp(32px, 5vw, 60px) 0 0;
  padding: 0;
}

.page-news .news-pulse__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--mist-200);
  padding: 14px 0 4px;
}

.page-news .news-pulse__num {
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.1;
  color: var(--ink-900);
  letter-spacing: 0.02em;
}

.page-news .news-pulse__item:first-child .news-pulse__num {
  color: var(--orange);
}

.page-news .news-pulse__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-500);
}

/* ---------- 本期要点 ---------- */
.page-news .news-brief {
  background: var(--paper);
  border-top: 1px solid var(--mist-200);
  border-bottom: 1px solid var(--mist-200);
}

.page-news .news-brief__grid {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.page-news .news-brief__title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(28px, 4.4vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 12px 0 clamp(24px, 3vw, 36px);
  max-width: 18ch;
}

.page-news .brief-list {
  list-style: none;
  margin: 0 0 clamp(28px, 4vw, 40px);
  padding: 0;
}

.page-news .brief {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--mist-200);
  transition: background var(--dur) var(--ease);
}

.page-news .brief:last-child {
  border-bottom: 1px solid var(--mist-200);
}

.page-news .brief__idx {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange-700);
  padding-top: 5px;
}

.page-news .brief p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-news .news-brief__media {
  margin: 0;
}

/* ---------- 条目列表 ---------- */
.page-news .news-stream__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.page-news .news-stream__head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  margin: 10px 0 0;
}

.page-news .news-stream__count {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist-500);
}

.page-news .news-stream__count .mono {
  font-size: 16px;
  color: var(--ink-900);
}

.page-news .news-filter {
  position: relative;
  margin-block-start: clamp(22px, 3vw, 34px);
}

.page-news .news-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .news-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-block-end: 6px;
}

.page-news .news-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--mist-200);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-700);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .news-filter__btn .mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist-500);
}

.page-news .news-filter__btn:hover {
  border-color: var(--ink-900);
}

.page-news #topic-all:checked ~ .news-filter__bar label[for="topic-all"],
.page-news #topic-version:checked ~ .news-filter__bar label[for="topic-version"],
.page-news #topic-process:checked ~ .news-filter__bar label[for="topic-process"],
.page-news #topic-area:checked ~ .news-filter__bar label[for="topic-area"],
.page-news #topic-eco:checked ~ .news-filter__bar label[for="topic-eco"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--paper);
}

.page-news #topic-all:checked ~ .news-filter__bar label[for="topic-all"] .mono,
.page-news #topic-version:checked ~ .news-filter__bar label[for="topic-version"] .mono,
.page-news #topic-process:checked ~ .news-filter__bar label[for="topic-process"] .mono,
.page-news #topic-area:checked ~ .news-filter__bar label[for="topic-area"] .mono,
.page-news #topic-eco:checked ~ .news-filter__bar label[for="topic-eco"] .mono {
  color: rgba(255, 255, 255, 0.82);
}

.page-news #topic-all:focus-visible ~ .news-filter__bar label[for="topic-all"],
.page-news #topic-version:focus-visible ~ .news-filter__bar label[for="topic-version"],
.page-news #topic-process:focus-visible ~ .news-filter__bar label[for="topic-process"],
.page-news #topic-area:focus-visible ~ .news-filter__bar label[for="topic-area"],
.page-news #topic-eco:focus-visible ~ .news-filter__bar label[for="topic-eco"] {
  outline: 2px solid var(--ink-900);
  outline-offset: 2px;
}

.page-news #topic-version:checked ~ .news-list .entry:not([data-topic="version"]),
.page-news #topic-process:checked ~ .news-list .entry:not([data-topic="process"]),
.page-news #topic-area:checked ~ .news-list .entry:not([data-topic="area"]),
.page-news #topic-eco:checked ~ .news-list .entry:not([data-topic="eco"]) {
  display: none;
}

.page-news .news-list {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 2px solid var(--ink-900);
}

.page-news .entry {
  border-bottom: 1px solid var(--mist-200);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .entry__summary {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 20px 20px 20px 2px;
  list-style: none;
  cursor: pointer;
}

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

.page-news .entry__summary::after {
  content: "";
  position: absolute;
  inset-block: 18px;
  inset-inline-end: 4px;
  width: 2px;
  background: var(--orange);
  opacity: 0;
  transform: scaleY(0.35);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .entry__summary:hover::after,
.page-news .entry[open] .entry__summary::after {
  opacity: 1;
  transform: scaleY(1);
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-news .entry__tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-700);
}

.page-news .entry__tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.page-news .entry__tag--version {
  color: var(--orange-700);
}

.page-news .entry__tag--process {
  color: var(--bamboo);
}

.page-news .entry__tag--area {
  color: var(--ink-700);
}

.page-news .entry__tag--eco {
  color: var(--mist-500);
}

.page-news .entry__time {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist-500);
}

.page-news .entry__head {
  display: block;
  min-width: 0;
}

.page-news .entry__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.4;
  color: var(--ink-900);
}

.page-news .entry__lead {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-block-start: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-news .entry__body {
  padding: 0 20px 24px 2px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-700);
  border-top: 1px solid var(--mist-100);
  margin-inline-end: 20px;
  padding-block-start: 16px;
}

.page-news .entry__body p {
  margin: 0 0 12px;
}

.page-news .entry__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 流程节点观察 ---------- */
.page-news .news-change {
  background: var(--paper);
  border-top: 1px solid var(--mist-200);
  border-bottom: 1px solid var(--mist-200);
}

.page-news .news-change__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.page-news .news-change__media {
  margin: 0;
}

.page-news .news-change__text h2,
.page-news .news-cadence__text h2,
.page-news .news-next__text h2,
.page-news .news-series__head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  margin: 10px 0 18px;
}

.page-news .news-change__text p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-700);
  max-width: 54ch;
}

.page-news .news-change__text .btn {
  margin-block-start: 10px;
}

/* ---------- 专题 ---------- */
.page-news .news-series__head {
  max-width: 62ch;
}

.page-news .series__grid {
  display: grid;
  gap: 0;
  margin-block-start: clamp(20px, 3vw, 32px);
}

.page-news .series__item {
  padding: 22px 0;
  border-top: 1px solid var(--mist-500);
}

.page-news .series__idx {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange-700);
  margin-block-end: 10px;
}

.page-news .series__item h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.4;
  margin: 0 0 10px;
}

.page-news .series__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-700);
}

.page-news .news-series__more {
  margin: clamp(24px, 3vw, 34px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-500);
}

.page-news .news-series__more a {
  color: var(--orange-700);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  margin-inline-start: 6px;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  background: var(--paper);
  border-top: 1px solid var(--mist-200);
}

.page-news .news-cadence__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-news .news-cadence__text > p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-700);
  max-width: 52ch;
}

.page-news .cadence__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
}

.page-news .cadence__list li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--mist-200);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-news .cadence__list li:last-child {
  border-bottom: 1px solid var(--mist-200);
}

.page-news .cadence__year {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange-700);
  padding-top: 3px;
}

.page-news .news-cadence__media {
  margin: 0;
}

/* ---------- 继续查证 ---------- */
.page-news .news-next {
  background: var(--mist-50);
}

.page-news .news-next__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-news .news-next__media {
  margin: 0;
}

.page-news .news-next__text > p {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-700);
  max-width: 50ch;
}

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

.page-news .nextstep__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 15px 0;
  border-top: 1px solid var(--mist-200);
}

.page-news .nextstep__item:last-child {
  border-bottom: 1px solid var(--mist-200);
}

.page-news .nextstep__idx {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist-500);
}

.page-news .nextstep__item a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .nextstep__item a:hover,
.page-news .nextstep__item a:focus-visible {
  color: var(--orange-700);
  border-bottom-color: var(--orange-700);
}

/* ---------- 图片容器的窄屏约束 ---------- */
.page-news .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 悬停要点，对应条目提亮 ---------- */
@media (hover: hover) {
  .page-news:has(.brief[data-brief="e1"]:hover) .entry[data-entry="e1"],
  .page-news:has(.brief[data-brief="e2"]:hover) .entry[data-entry="e2"],
  .page-news:has(.brief[data-brief="e3"]:hover) .entry[data-entry="e3"],
  .page-news:has(.brief[data-brief="e4"]:hover) .entry[data-entry="e4"] {
    background: var(--mist-100);
    box-shadow: inset 2px 0 0 var(--orange);
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-news .news-pulse {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-news .news-brief__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-news .entry__summary {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 28px;
    padding: 24px 30px 24px 2px;
  }

  .page-news .entry__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 3px;
  }

  .page-news .entry__body {
    margin-inline-start: calc(168px + 28px);
    margin-inline-end: 30px;
    padding-inline-start: 0;
  }

  .page-news .series__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(24px, 3vw, 44px);
  }

  .page-news .news-change__grid,
  .page-news .news-cadence__grid,
  .page-news .news-next__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-news .news-cadence__grid {
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1080px) {
  .page-news .news-brief__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 72px;
  }

  .page-news .news-change__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 72px;
  }

  .page-news .news-cadence__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 72px;
  }

  .page-news .news-next__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-filter__btn,
  .page-news .entry,
  .page-news .entry__summary::after,
  .page-news .nextstep__item a {
    transition: none;
  }
}