.page-news {
  --pn-rule: var(--grid-line);
  --pn-pad: clamp(16px, 4vw, 40px);
  position: relative;
  padding-block: clamp(20px, 4vw, 40px) clamp(72px, 10vw, 120px);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-news .pn-shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-news .breadcrumbs {
  margin-bottom: clamp(16px, 3vw, 28px);
}

/* ---------- 栏目题头 ---------- */
.obs-masthead {
  border-top: 2px solid var(--c-copper);
  padding-top: 16px;
}

.obs-masthead__rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-mist);
}

.obs-masthead__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 24px;
  padding-inline: 8px;
  border: 1px solid var(--c-copper);
  color: var(--c-copper-lit);
  font-weight: 700;
}

.obs-masthead__name {
  color: var(--c-title);
  letter-spacing: .16em;
}

.obs-masthead__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  color: var(--c-cyan);
  letter-spacing: .04em;
}

.obs-title {
  margin: clamp(18px, 3vw, 30px) 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 10vw, 92px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--c-title);
  max-width: 18ch;
}

.obs-title__em {
  display: block;
  color: var(--c-copper-lit);
}

.obs-lead {
  max-width: 60ch;
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.75;
  color: var(--c-text);
}

.obs-hero {
  position: relative;
  margin: clamp(26px, 5vw, 52px) 0 0;
}

.obs-hero img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--c-steel);
}

.obs-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-copper), var(--c-cyan) 55%, transparent);
  opacity: .85;
}

/* ---------- 章节通用 ---------- */
.obs-block {
  margin-top: clamp(48px, 8vw, 96px);
}

.obs-sechead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  border-top: 1px solid var(--c-copper);
  padding-top: 14px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.obs-sechead__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-copper-lit);
}

.obs-sechead h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--c-title);
}

.obs-sechead__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-cyan);
}

.obs-sechead--right h2 {
  order: -1;
}

/* ---------- 筛选条 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 3vw, 26px);
}

.filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border: 1px solid var(--c-copper);
  border-radius: 999px;
  background: transparent;
  color: var(--c-copper-lit);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  cursor: pointer;
  user-select: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.filter-pill:hover {
  background: rgba(185, 115, 58, .16);
}

.filter-input:checked + .filter-pill {
  background: var(--c-copper);
  border-color: var(--c-copper-lit);
  color: var(--c-ink);
}

.filter-input:focus-visible + .filter-pill {
  outline: 2px solid var(--c-copper-lit);
  outline-offset: 2px;
}

/* ---------- 更新列表 ---------- */
.obs-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-steel);
}

.obs-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-steel);
}

.obs-item__side {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.obs-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease);
}

.obs-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--c-title);
}

.obs-item__desc {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-mist);
}

.obs-item__arrow {
  display: none;
}

.list-break {
  height: 1px;
  margin: 6px 0;
  border: 0;
  background: linear-gradient(90deg, var(--c-copper), var(--c-cyan) 48%, transparent);
}

.page-news:has(#flt-duo:checked) .obs-item:not([data-cat="duo"]),
.page-news:has(#flt-youth:checked) .obs-item:not([data-cat="youth"]),
.page-news:has(#flt-log:checked) .obs-item:not([data-cat="log"]),
.page-news:has(#flt-injury:checked) .obs-item:not([data-cat="injury"]) {
  display: none;
}

.page-news:has(.filter-input:not(#flt-all):checked) .list-break {
  display: none;
}

/* ---------- 双场回看 ---------- */
.obs-duo__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.obs-duo__figure {
  margin: 0;
}

.obs-duo__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--c-steel);
}

.obs-duo__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mist);
}

.obs-duo__copy {
  color: var(--c-ink);
}

.obs-duo__copy p {
  margin: 0 0 1em;
}

.obs-duo__copy p:last-child {
  margin-bottom: 0;
}

/* ---------- 青训观察 ---------- */
.obs-youth__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.obs-youth__lead {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.5;
  color: var(--c-title);
}

.obs-youth__points {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-steel);
}

.obs-youth__points li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-steel);
}

.obs-youth__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.obs-youth__points p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-text);
}

.obs-youth__tail {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.obs-youth__figure {
  margin: 0;
}

.obs-youth__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--c-steel);
}

/* ---------- 简表变动记录 ---------- */
.obs-log__band {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-steel);
  margin-bottom: clamp(18px, 3vw, 28px);
}

.obs-log__band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
  opacity: .55;
}

.obs-log__band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 25, 43, .3), rgba(8, 25, 43, .9));
}

.obs-log__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: logitem;
}

.obs-log__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--c-steel);
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-text);
}

.obs-log__list li::before {
  counter-increment: logitem;
  content: counter(logitem, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-orange);
  padding-top: 4px;
}

.obs-log__list strong {
  color: var(--c-title);
  font-weight: 600;
}

/* ---------- 归档带 ---------- */
.page-news .archive-band {
  margin-top: clamp(48px, 8vw, 96px);
  border: 1px solid var(--c-copper);
  background: rgba(16, 42, 65, .62);
}

.page-news .archive-band > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 18px;
  padding: clamp(14px, 2.4vw, 20px) clamp(16px, 3vw, 26px);
  cursor: pointer;
  list-style: none;
}

.page-news .archive-band > summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-band > summary::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 2px;
  background: var(--c-copper);
  transition: width var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .archive-band[open] > summary::before {
  width: 34px;
  background: var(--c-cyan);
}

.obs-archive__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.4vw, 22px);
  letter-spacing: -.01em;
  color: var(--c-title);
}

.obs-archive__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-news .archive-band[open] > summary {
  border-bottom: 1px solid var(--c-steel);
}

.obs-archive__list {
  list-style: none;
  margin: 0;
  padding: clamp(16px, 3vw, 26px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.obs-archive__card {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--c-steel);
  background: var(--c-night);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.obs-archive__card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--c-copper) 0 8px, transparent 8px 16px);
  opacity: .6;
}

.obs-archive__card:hover {
  border-color: var(--c-copper-lit);
  transform: translateY(-2px);
}

.obs-archive__when {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-cyan);
}

.obs-archive__card h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.32;
  color: var(--c-title);
}

.obs-archive__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 更新节奏 ---------- */
.obs-follow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.obs-follow__text p {
  margin: 0 0 1em;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-text);
}

.obs-follow__text p:last-child {
  margin-bottom: 0;
}

.obs-follow__cadence {
  list-style: none;
  margin: 0;
  padding: 0;
}

.obs-follow__cadence li {
  padding: 14px 0 16px;
  border-top: 1px solid var(--c-steel);
}

.obs-follow__cadence li:last-child {
  border-bottom: 1px solid var(--c-steel);
}

.obs-follow__when {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-copper-lit);
}

.obs-follow__cadence p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-mist);
}

.obs-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(24px, 4vw, 36px);
}

/* ---------- 回到顶部坐标点 ---------- */
.obs-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 20;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--c-copper);
  background: rgba(8, 25, 43, .88);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.obs-top__tick {
  position: relative;
  display: block;
  width: 1px;
  height: 18px;
  background: var(--c-copper-lit);
}

.obs-top__tick::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 9px;
  height: 9px;
  border-left: 1px solid var(--c-copper-lit);
  border-top: 1px solid var(--c-copper-lit);
  transform: translate(-50%, 1px) rotate(45deg);
}

.obs-top:hover {
  border-color: var(--c-cyan);
  transform: translateY(-3px);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .obs-archive__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .obs-item {
    grid-template-columns: 190px minmax(0, 1fr) 26px;
    gap: 24px;
    padding: 22px 14px 22px 16px;
    align-items: start;
  }

  .obs-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: transparent;
    transition: background var(--dur) var(--ease);
  }

  .obs-item__side {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .obs-item__arrow {
    display: block;
    font-family: var(--font-mono);
    font-size: 18px;
    line-height: 1.4;
    text-align: right;
    color: var(--c-steel);
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), color var(--dur) var(--ease);
  }

  .obs-item:hover {
    background: linear-gradient(90deg, rgba(36, 69, 95, .38), transparent 72%);
  }

  .obs-item:hover::before {
    background: var(--c-copper);
  }

  .obs-item:hover .obs-item__time {
    color: var(--c-copper-lit);
    font-weight: 700;
  }

  .obs-item:hover .obs-item__arrow {
    opacity: 1;
    transform: translateX(0);
    color: var(--c-copper-lit);
  }

  .obs-youth__points li {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 4px 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .obs-duo__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .obs-youth__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .obs-follow__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .obs-archive__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .obs-item {
    grid-template-columns: 210px minmax(0, 1fr) 30px;
    gap: 32px;
  }
}

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

  .page-news .obs-item:hover,
  .page-news .obs-archive__card:hover,
  .page-news .obs-top:hover {
    transform: none;
  }
}