.page-news .notes-masthead {
  padding-top: clamp(24px, 4.5vw, 50px);
  padding-bottom: clamp(24px, 4vw, 42px);
  border-bottom: 1px solid var(--line);
}

.page-news .notes-masthead__title {
  margin: 12px 0 0;
  max-width: 20ch;
  font-size: clamp(29px, 5.2vw, 56px);
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.page-news .notes-masthead__lede {
  margin: 18px 0 0;
  max-width: 58ch;
}

.page-news .notes-masthead__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-news .notes-masthead__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-news .notes-masthead__meta dd {
  margin: 5px 0 0;
  font-size: 15px;
  color: var(--ink);
}

/* 头条区 */
.page-news .notes-headline {
  padding: clamp(34px, 5vw, 60px) 0;
}

.page-news .notes-headline__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-news .notes-headline__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.3;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.page-news .notes-headline__text {
  margin: 16px 0 0;
  max-width: 52ch;
  color: var(--ink-soft);
  line-height: 1.85;
}

.page-news .notes-picks {
  margin-top: clamp(22px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}

.page-news .notes-pick {
  padding: 16px 0 18px;
  border-top: 1px solid var(--line);
  transition: border-color 0.2s ease;
}

.page-news .notes-pick:hover {
  border-top-color: var(--ochre);
}

.page-news .notes-pick__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--jade);
}

.page-news .notes-pick__meta .mono:last-child {
  color: var(--gray);
}

.page-news .notes-pick__title {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.55;
  color: var(--ink);
}

.page-news .notes-pick__text {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
}

/* 图片容器 */
.page-news .notes-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--shell);
  overflow: hidden;
}

.page-news .notes-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .notes-figure figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--gray);
}

.page-news .notes-figure--lead {
  border-color: var(--sand);
}

/* 主体：左索引 + 右列表 */
.page-news .notes-shell {
  padding: clamp(8px, 2vw, 16px) 0 clamp(36px, 5vw, 64px);
}

.page-news .notes-shell__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-news .notes-rail__cover {
  margin-bottom: 22px;
  border-color: var(--ochre);
}

.page-news .notes-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--gray);
}

.page-news .notes-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
}

.page-news .notes-index__btn {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-news .notes-index__btn .mono {
  font-size: 10px;
  color: var(--gray);
}

.page-news .notes-index__btn:hover {
  border-color: var(--jade);
  color: var(--jade);
}

.page-news .notes-index__btn.is-active {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--shell);
}

.page-news .notes-index__btn.is-active .mono {
  color: var(--shell);
  opacity: 0.85;
}

.page-news .notes-index__btn:focus-visible,
.page-news .notes-toc__link:focus-visible {
  outline: 2px solid var(--jade);
  outline-offset: 2px;
}

.page-news .notes-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-news .notes-toc__link {
  display: block;
  padding: 8px 0 8px 14px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news .notes-toc__link:hover {
  color: var(--ochre);
  border-left-color: var(--sand);
}

.page-news .notes-toc__link[aria-current="true"] {
  color: var(--ochre);
  border-left: 2px solid var(--ochre);
  padding-left: 13px;
}

/* 文章列表 */
.page-news .notes-listhead {
  display: grid;
  gap: 20px;
  margin-bottom: 22px;
}

.page-news .notes-listhead__title {
  margin: 10px 0 0;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-news .notes-listhead__lede {
  margin: 10px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .note-item {
  display: grid;
  gap: 10px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  transition: background-color 0.2s ease;
}

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

.page-news .note-item__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ochre);
}

.page-news .note-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--ink);
  transition: color 0.18s ease, transform 0.18s ease;
}

.page-news .note-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 8px 0 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.page-news .note-item__tag {
  padding: 2px 8px;
  border: 1px solid var(--jade);
  border-radius: 999px;
  color: var(--jade);
  font-size: 10px;
}

.page-news .note-item__text {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .note-item:hover .note-item__title {
  color: var(--ochre);
  transform: translateX(3px);
}

.page-news .note-item:hover {
  background: var(--shell);
}

.page-news .note-item.is-hidden {
  display: none;
}

/* 案例方法专题 */
.page-news .notes-method {
  padding: clamp(36px, 5vw, 66px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--jade-mist);
}

.page-news .notes-method__head {
  max-width: 60ch;
}

.page-news .notes-method__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.32;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.page-news .notes-method__lede {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .notes-flow {
  display: block;
  width: 100%;
  height: auto;
  margin: clamp(24px, 3.5vw, 36px) 0;
}

.page-news .notes-flow line {
  stroke: var(--line);
  stroke-width: 1;
}

.page-news .notes-flow .notes-flow__base {
  stroke: var(--ochre);
  stroke-width: 1.5;
  opacity: 0.5;
}

.page-news .notes-flow circle {
  fill: var(--ochre);
}

.page-news .notes-flow circle:nth-of-type(even) {
  fill: var(--jade);
}

.page-news .notes-flow__no {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--gray);
  letter-spacing: 0.1em;
}

.page-news .notes-flow__label {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  fill: var(--ink);
}

.page-news .notes-method__grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: start;
}

.page-news .notes-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-news .notes-step {
  padding: 0 0 20px 16px;
  border-left: 2px solid var(--jade);
}

.page-news .notes-step:last-child {
  padding-bottom: 0;
  border-left-color: var(--sand);
}

.page-news .notes-step__no {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--jade);
}

.page-news .notes-step__title {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .notes-step__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .notes-method__figure {
  background: var(--shell);
}

.page-news .notes-method__more {
  margin: clamp(26px, 3.5vw, 38px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .notes-method__more a {
  color: var(--jade);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .notes-method__more a:hover {
  color: var(--ochre);
}

/* 继续了解 */
.page-news .notes-next {
  padding: clamp(36px, 5vw, 66px) 0 clamp(40px, 5vw, 70px);
}

.page-news .notes-next__title {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(20px, 2.8vw, 28px);
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-news .notes-next__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .notes-next__card {
  display: block;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--shell);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-news .notes-next__card:hover {
  transform: translateY(-3px);
  border-color: var(--ochre);
  background: var(--paper);
}

.page-news .notes-next__no {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.page-news .notes-next__card-title {
  margin: 10px 0 0;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .notes-next__card-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .notes-next__go {
  display: inline-block;
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--jade);
}

.page-news .notes-next__card:hover .notes-next__go {
  color: var(--ochre);
}

@media (min-width: 700px) {
  .page-news .notes-masthead__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .note-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 18px;
  }

  .page-news .note-item__no {
    padding-top: 4px;
    font-size: 13px;
  }

  .page-news .notes-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-news .notes-headline__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }

  .page-news .notes-shell__inner {
    grid-template-columns: 258px minmax(0, 1fr);
  }

  .page-news .notes-rail {
    position: sticky;
    top: 18px;
  }

  .page-news .notes-index {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-top: 1px solid var(--line);
  }

  .page-news .notes-index__btn {
    width: 100%;
    justify-content: space-between;
    padding: 11px 2px;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 15px;
    text-align: left;
  }

  .page-news .notes-index__btn:hover {
    color: var(--ochre);
  }

  .page-news .notes-index__btn.is-active {
    background: transparent;
    color: var(--ochre);
    border-bottom-color: var(--ochre);
    border-bottom-width: 2px;
  }

  .page-news .notes-index__btn.is-active .mono {
    color: var(--ochre);
    opacity: 1;
  }

  .page-news .notes-listhead {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: end;
    gap: 28px;
  }

  .page-news .notes-method__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .notes-pick,
  .page-news .notes-index__btn,
  .page-news .notes-toc__link,
  .page-news .note-item,
  .page-news .note-item__title,
  .page-news .notes-next__card {
    transition: none;
  }

  .page-news .note-item:hover .note-item__title,
  .page-news .notes-next__card:hover {
    transform: none;
  }
}