.page-news {
  --nl-accent: var(--line);
  --nl-tagw: 118px;
  --nl-timew: 132px;
  max-width: 1240px;
  margin: 0 auto;
  padding: calc(var(--anchor-h) + 34px) clamp(18px, 4vw, var(--gutter)) 96px;
  color: var(--ink);
  font-family: var(--font-body);
  overflow-wrap: break-word;
}

.page-news .nl-head {
  max-width: 74ch;
  margin-top: 22px;
}

.page-news .nl-head__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-news h1 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(32px, 5.4vw, 52px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.12;
}

.page-news .nl-lede {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .nl-hero {
  margin: 30px 0 6px;
}

.page-news .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 通用面板 ---------- */

.page-news .nl-deep {
  position: relative;
  margin-top: 30px;
  padding: 26px 22px 26px 26px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-news .nl-deep:hover {
  transform: translateY(-4px);
  border-color: rgba(53, 224, 214, .32);
}

.page-news .nl-deep::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--nl-accent);
}

.page-news .nl-deep--rhythm { --nl-accent: var(--cyan); }
.page-news .nl-deep--lib { --nl-accent: var(--violet); }
.page-news .nl-deep--youth { --nl-accent: var(--green-hi); }
.page-news .nl-deep--tip { --nl-accent: var(--gold); }

.page-news .nl-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-3);
}

.page-news .nl-deep h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.3;
}

.page-news .nl-deep p {
  margin: 0 0 14px;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .nl-deep__lead {
  color: var(--ink) !important;
  font-size: 16px !important;
}

/* ---------- 更新节奏 ---------- */

.page-news .nl-rhythm {
  margin: 20px 0 0;
  padding: 0;
}

.page-news .nl-rhythm__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .nl-rhythm__row:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-news .nl-rhythm__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-news .nl-rhythm__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 动态条目区 ---------- */

.page-news .nl-stream {
  margin-top: 44px;
}

.page-news .nl-stream .section-head h2,
.page-news .nl-topics .section-head h2 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -.015em;
}

.page-news .nl-stream .section-head p,
.page-news .nl-topics .section-head p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.page-news .nl-board {
  position: relative;
  margin-top: 20px;
}

.page-news .nl-cat {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .nl-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
}

.page-news .nl-filters label {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 7px 14px 7px 16px;
  border: 1px solid var(--line);
  background: #0b1223;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-news .nl-filters label::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: var(--line);
  transition: width .18s var(--ease);
}

.page-news .nl-filters label:nth-child(1)::before { background: var(--ink); }
.page-news .nl-filters label:nth-child(2)::before { background: var(--cyan); }
.page-news .nl-filters label:nth-child(3)::before { background: var(--violet); }
.page-news .nl-filters label:nth-child(4)::before { background: var(--green-hi); }
.page-news .nl-filters label:nth-child(5)::before { background: var(--gold); }
.page-news .nl-filters label:nth-child(6)::before { background: var(--ink-2); }

.page-news .nl-filters label:hover {
  color: var(--ink);
  background: #121b30;
}

.page-news #nlcat-all:checked ~ .nl-filters label[for="nlcat-all"],
.page-news #nlcat-data:checked ~ .nl-filters label[for="nlcat-data"],
.page-news #nlcat-lib:checked ~ .nl-filters label[for="nlcat-lib"],
.page-news #nlcat-youth:checked ~ .nl-filters label[for="nlcat-youth"],
.page-news #nlcat-rail:checked ~ .nl-filters label[for="nlcat-rail"],
.page-news #nlcat-topic:checked ~ .nl-filters label[for="nlcat-topic"] {
  color: var(--ink);
  border-color: rgba(53, 224, 214, .5);
  background: rgba(53, 224, 214, .08);
}

.page-news #nlcat-all:checked ~ .nl-filters label[for="nlcat-all"]::before,
.page-news #nlcat-data:checked ~ .nl-filters label[for="nlcat-data"]::before,
.page-news #nlcat-lib:checked ~ .nl-filters label[for="nlcat-lib"]::before,
.page-news #nlcat-youth:checked ~ .nl-filters label[for="nlcat-youth"]::before,
.page-news #nlcat-rail:checked ~ .nl-filters label[for="nlcat-rail"]::before,
.page-news #nlcat-topic:checked ~ .nl-filters label[for="nlcat-topic"]::before {
  width: 4px;
}

.page-news #nlcat-all:focus-visible ~ .nl-filters label[for="nlcat-all"],
.page-news #nlcat-data:focus-visible ~ .nl-filters label[for="nlcat-data"],
.page-news #nlcat-lib:focus-visible ~ .nl-filters label[for="nlcat-lib"],
.page-news #nlcat-youth:focus-visible ~ .nl-filters label[for="nlcat-youth"],
.page-news #nlcat-rail:focus-visible ~ .nl-filters label[for="nlcat-rail"],
.page-news #nlcat-topic:focus-visible ~ .nl-filters label[for="nlcat-topic"] {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-news #nlcat-data:checked ~ .nl-list .nl-entry:not([data-cat="data"]),
.page-news #nlcat-lib:checked ~ .nl-list .nl-entry:not([data-cat="lib"]),
.page-news #nlcat-youth:checked ~ .nl-list .nl-entry:not([data-cat="youth"]),
.page-news #nlcat-rail:checked ~ .nl-list .nl-entry:not([data-cat="rail"]),
.page-news #nlcat-topic:checked ~ .nl-list .nl-entry:not([data-cat="topic"]) {
  display: none;
}

/* ---------- 条列表 ---------- */

.page-news .nl-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .nl-entry {
  border-bottom: 1px solid var(--line-soft);
}

.page-news .nl-item {
  position: relative;
  border-left: 3px solid var(--line);
  transition: background .2s var(--ease);
}

.page-news .nl-entry[data-cat="data"] .nl-item { border-left-color: var(--cyan); }
.page-news .nl-entry[data-cat="lib"] .nl-item { border-left-color: var(--violet); }
.page-news .nl-entry[data-cat="youth"] .nl-item { border-left-color: var(--green-hi); }
.page-news .nl-entry[data-cat="rail"] .nl-item { border-left-color: var(--gold); }
.page-news .nl-entry[data-cat="topic"] .nl-item { border-left-color: var(--ink-2); }

.page-news .nl-item:hover {
  background: rgba(233, 238, 247, .035);
}

.page-news .nl-item__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "tag time arrow"
    "title title title";
  gap: 9px 10px;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-news .nl-item__head::-webkit-details-marker { display: none; }
.page-news .nl-item__head::marker { content: ""; }

.page-news .nl-tag {
  grid-area: tag;
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid var(--line);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  white-space: nowrap;
}

.page-news .nl-entry[data-cat="data"] .nl-tag { color: var(--cyan); border-color: rgba(53, 224, 214, .4); }
.page-news .nl-entry[data-cat="lib"] .nl-tag { color: var(--violet); border-color: rgba(124, 107, 255, .45); }
.page-news .nl-entry[data-cat="youth"] .nl-tag { color: var(--green-hi); border-color: rgba(79, 209, 165, .42); }
.page-news .nl-entry[data-cat="rail"] .nl-tag { color: var(--gold); border-color: rgba(231, 180, 76, .42); }
.page-news .nl-entry[data-cat="topic"] .nl-tag { color: var(--ink-2); border-color: var(--line); }

.page-news .nl-item__title {
  grid-area: title;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .nl-item__time {
  grid-area: time;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ink-3);
  white-space: nowrap;
}

.page-news .nl-item__arrow {
  grid-area: arrow;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
  opacity: .35;
  transition: opacity .18s var(--ease), transform .18s var(--ease), color .18s var(--ease);
}

.page-news .nl-item:hover .nl-item__arrow,
.page-news .nl-item[open] .nl-item__arrow {
  opacity: 1;
  color: var(--cyan);
  transform: translateX(3px);
}

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

.page-news .nl-item[open] .nl-item__body {
  padding: 16px 16px 20px;
  border-top: 1px solid var(--line-soft);
}

.page-news .nl-item__body p {
  margin: 0;
  max-width: 72ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .nl-item__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, .35);
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-news .nl-item__link::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform .18s var(--ease);
}

.page-news .nl-item__link:hover {
  border-bottom-color: var(--cyan);
}

.page-news .nl-item__link:hover::after {
  transform: translateX(4px);
}

.page-news .nl-item__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- 两栏面板 ---------- */

.page-news .nl-split {
  display: grid;
  gap: 22px;
  margin-top: 20px;
}

.page-news .nl-split__text p {
  margin: 0 0 14px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .nl-plain {
  margin: 4px 0 6px;
  padding: 0;
  list-style: none;
}

.page-news .nl-plain li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-news .nl-plain li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.page-news .nl-split__media {
  margin: 0;
}

/* ---------- 专题区 ---------- */

.page-news .nl-topics {
  margin-top: 46px;
}

.page-news .nl-topics__grid {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

.page-news .nl-topics__figure {
  margin: 0;
}

.page-news .nl-topics__list {
  display: grid;
  gap: 16px;
}

.page-news .nl-topic {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-news .nl-topic::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(231, 180, 76, 0));
}

.page-news .nl-topic:hover {
  transform: translateY(-4px);
  border-color: rgba(53, 224, 214, .32);
}

.page-news .nl-topic__id {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-news .nl-topic__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .nl-topic__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-news .nl-topic .nl-item__link {
  margin-top: 12px;
}

/* ---------- 收尾 ---------- */

.page-news .nl-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 900px) {
  .page-news .nl-item__head {
    grid-template-columns: var(--nl-tagw) minmax(0, 1fr) var(--nl-timew) 22px;
    grid-template-areas: "tag title time arrow";
    gap: 0 18px;
    padding: 0 20px;
    min-height: 56px;
  }

  .page-news .nl-item[open] .nl-item__body {
    padding: 16px 20px 22px calc(20px + var(--nl-tagw) + 18px);
  }

  .page-news .nl-item__body p {
    max-width: 68ch;
  }

  .page-news .nl-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 36px;
    align-items: start;
  }

  .page-news .nl-topics__grid {
    grid-template-columns: minmax(0, .68fr) minmax(0, 1.32fr);
    gap: 36px;
    align-items: start;
  }

  .page-news .nl-deep {
    padding: 32px 30px 32px 36px;
  }

  .page-news .nl-rhythm__row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-news .nl-topics__figure {
    position: sticky;
    top: calc(var(--anchor-h) + 24px);
  }
}

@media (min-width: 1180px) {
  .page-news .nl-item__title {
    font-size: 16px;
  }
}

@media (max-width: 560px) {
  .page-news .nl-deep {
    padding: 22px 17px 24px 21px;
  }

  .page-news .nl-topic {
    padding: 20px 16px 22px;
  }

  .page-news .nl-topic::before {
    left: 16px;
    right: 16px;
  }

  .page-news .nl-item__head {
    padding: 13px 13px;
  }

  .page-news .nl-item[open] .nl-item__body {
    padding: 14px 13px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .nl-item,
  .page-news .nl-item__arrow,
  .page-news .nl-item__link::after,
  .page-news .nl-topic,
  .page-news .nl-deep,
  .page-news .nl-filters label,
  .page-news .nl-filters label::before {
    transition: none;
  }

  .page-news .nl-topic:hover,
  .page-news .nl-deep:hover {
    transform: none;
  }
}