.page-about {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-background);
}

/* ===== Hero 首屏 ===== */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 4.25rem 0 3.5rem;
  background: linear-gradient(160deg, var(--color-primary) 0%, #9A2D22 45%, var(--color-text) 100%);
  color: var(--color-white);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  right: 0.75rem;
  bottom: 0.75rem;
  border: 1px solid rgba(255, 249, 240, 0.25);
  pointer-events: none;
  z-index: 1;
}

.page-about .about-hero__inner,
.page-about .about-hero__links {
  position: relative;
  z-index: 2;
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-about .about-hero__chili {
  font-family: var(--font-display);
  writing-mode: vertical-rl;
  font-size: 3.2rem;
  line-height: 0.88;
  letter-spacing: 0.12em;
  color: rgba(255, 249, 240, 0.22);
  margin: 0;
  position: absolute;
  right: 1rem;
  top: 1rem;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.page-about .about-hero__content {
  position: relative;
  z-index: 2;
  border-top: 2px solid rgba(255, 249, 240, 0.28);
  padding-top: 1.5rem;
  max-width: 52rem;
}

.page-about .about-breadcrumb {
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: rgba(255, 249, 240, 0.6);
}

.page-about .about-breadcrumb a {
  color: rgba(255, 249, 240, 0.74);
  text-decoration: none;
}

.page-about .about-breadcrumb a:hover {
  color: var(--color-accent-1);
}

.page-about .about-breadcrumb [aria-current="page"] {
  color: var(--color-white);
  font-weight: 700;
}

.page-about .about-hero .eyebrow {
  color: var(--color-accent-1);
  font-family: var(--font-mono);
}

.page-about .about-hero .display-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0.35rem 0 1.25rem;
  max-width: 14em;
  overflow-wrap: break-word;
}

.page-about .about-hero .lede {
  font-size: 1.06rem;
  line-height: 1.8;
  color: rgba(255, 249, 240, 0.92);
  max-width: 44rem;
  margin: 0 0 1.75rem;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-about .about-hero__meta-item {
  background: rgba(255, 249, 240, 0.13);
  border: 1px solid rgba(255, 249, 240, 0.22);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .about-hero__links {
  margin-top: 2.25rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 249, 240, 0.22);
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 2rem;
}

.page-about .about-hero__link {
  color: var(--color-white);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.page-about .about-hero__link::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent-1);
  flex: 0 0 auto;
}

.page-about .about-hero__link:hover {
  color: var(--color-accent-1);
}

/* ===== 通用 section ===== */
.page-about .about-section {
  padding: 3.5rem 0 3rem;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-about .about-section__head {
  margin-bottom: 1.5rem;
}

.page-about .about-section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.12;
  margin: 0.35rem 0 0;
}

.page-about .about-section__head h2::before {
  content: "";
  display: block;
  width: 2.75rem;
  height: 4px;
  background: var(--color-primary);
  margin-bottom: 0.8rem;
}

.page-about .about-intro {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  max-width: 46rem;
  margin: 0 0 2rem;
}

/* ===== 01 辣开始的地方 ===== */
.page-about .about-origin {
  position: relative;
  overflow: hidden;
  background: var(--color-background);
}

.page-about .about-origin__layout {
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

.page-about .about-origin__media {
  position: relative;
}

.page-about .about-origin__media::before {
  content: "";
  position: absolute;
  top: 12px;
  right: -12px;
  bottom: -12px;
  left: 12px;
  background: var(--color-accent-2);
  border-radius: 4px 18px 4px 18px;
  z-index: 0;
}

.page-about .about-origin__media img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px 18px 4px 18px;
  border: 1px solid var(--color-outline);
  box-shadow: 0 18px 30px -18px rgba(36, 31, 27, 0.4);
}

.page-about .about-origin__body p {
  line-height: 1.8;
  margin: 0 0 1rem;
}

.page-about .about-origin__body p:last-child {
  margin-bottom: 0;
}

/* ===== 02 为什么是鸭脖系 ===== */
.page-about .about-why {
  background: var(--color-surface);
}

.page-about .about-why .about-section__head h2::before {
  background: var(--color-accent-1);
}

.page-about .about-why__grid {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-why__statement {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 1.75rem 1.5rem;
  border-radius: 0 22px 0 22px;
  font-size: clamp(1.18rem, 2.2vw, 1.6rem);
  line-height: 1.6;
  margin: 0;
}

.page-about .about-why__statement p {
  margin: 0;
}

.page-about .about-why__statement b {
  color: var(--color-accent-1);
  font-weight: 800;
}

.page-about .about-why__statement a {
  color: var(--color-white);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--color-accent-1);
  font-weight: 700;
}

.page-about .about-why__points {
  display: grid;
  gap: 1rem;
}

.page-about .about-why__point {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-outline);
  border-left: 3px solid var(--color-outline);
  border-radius: 0 14px 0 14px;
  padding: 1.3rem 1.2rem 1.2rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-why__point:hover {
  border-left-color: var(--color-primary);
  transform: translateX(2px);
}

.page-about .about-why__point::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 3px;
  height: 38px;
  background: var(--color-accent-2);
}

.page-about .about-why__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent-2);
  font-weight: 700;
}

.page-about .about-why__point h3 {
  font-size: 1.25rem;
  margin: 0.2rem 0 0.45rem;
  color: var(--color-text);
}

.page-about .about-why__point p {
  color: var(--color-text-secondary);
  line-height: 1.65;
  font-size: 0.95rem;
  margin: 0;
}

/* ===== 03 从公告到内容平台 ===== */
.page-about .about-timeline-section {
  background: var(--color-background);
}

.page-about .about-timeline-section .about-section__head h2::before {
  background: var(--color-accent-2);
}

.page-about .about-timeline {
  list-style: none;
  position: relative;
  margin: 0 0 2.5rem;
  padding: 0;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.65rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-line), var(--color-accent-2));
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 1.3rem 3rem;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__dot {
  position: absolute;
  top: 0.45rem;
  left: 0;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 0.68rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-12deg);
}

.page-about .about-timeline__card {
  background: var(--color-surface);
  border: 1px solid var(--color-outline);
  border-radius: 0 14px 0 14px;
  padding: 1.2rem 1.2rem 1rem;
  box-shadow: 0 10px 22px -18px rgba(36, 31, 27, 0.22);
}

.page-about .about-timeline__year {
  display: inline-block;
  background: var(--color-highlight);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.65rem;
}

.page-about .about-timeline__card h3 {
  font-size: 1.12rem;
  margin: 0 0 0.4rem;
}

.page-about .about-timeline__card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

.page-about .about-timeline__evolution {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: 0 18px 0 18px;
  background: var(--color-surface);
}

.page-about .about-timeline__evolution img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0 10px 0 10px;
  object-fit: cover;
}

.page-about .about-timeline__evolution p {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ===== 04 辣度哲学 ===== */
.page-about .about-heat {
  background: linear-gradient(180deg, var(--color-highlight) 0%, var(--color-background) 100%);
}

.page-about .about-heat__layout {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-heat__visual img {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin-inline: auto;
  border-radius: 50%;
  border: 8px solid var(--color-white);
  box-shadow: 0 20px 35px -22px rgba(36, 31, 27, 0.4);
}

.page-about .about-heat__levels {
  display: grid;
  gap: 0.9rem;
}

.page-about .about-heat__level {
  background: var(--color-surface);
  border: 1px solid var(--color-outline);
  border-left: 4px solid var(--color-primary);
  padding: 0.95rem 1.1rem;
}

.page-about .about-heat__level:nth-child(2) {
  border-left-color: var(--color-accent-1);
}

.page-about .about-heat__level:nth-child(3) {
  border-left-color: var(--color-accent-2);
}

.page-about .about-heat__level:nth-child(4) {
  border-left-color: var(--color-text);
  background: linear-gradient(90deg, var(--color-highlight), var(--color-surface) 55%);
}

.page-about .about-heat__level-name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.page-about .about-heat__level p {
  color: var(--color-text-secondary);
  font-size: 0.93rem;
  line-height: 1.65;
  margin: 0;
}

.page-about .about-heat__levels .btn {
  justify-self: start;
  margin-top: 0.25rem;
}

/* ===== 05 宁夏基因 ===== */
.page-about .about-ningxia {
  background: var(--color-background);
}

.page-about .about-ningxia .about-section__head h2::before {
  background: var(--color-accent-2);
}

.page-about .about-ningxia__grid {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-ningxia__item {
  background: var(--color-surface);
  border: 1px solid var(--color-outline);
  border-radius: 0 18px 0 18px;
  padding: 1.5rem 1.35rem;
}

.page-about .about-ningxia__item h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 0 0.4rem;
  color: var(--color-accent-2);
}

.page-about .about-ningxia__item p {
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin: 0 0 0.5rem;
}

.page-about .about-dialect {
  margin-top: 0.8rem;
  border-top: 1px dashed var(--color-line);
  padding-top: 0.7rem;
}

.page-about .about-dialect summary {
  list-style: none;
  cursor: pointer;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}

.page-about .about-dialect summary::-webkit-details-marker {
  display: none;
}

.page-about .about-dialect summary::before {
  content: "辣";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.68rem;
  line-height: 1;
  flex: 0 0 auto;
}

.page-about .about-dialect summary:hover {
  color: var(--color-accent-2);
}

.page-about .about-dialect[open] summary {
  color: var(--color-accent-2);
}

.page-about .about-dialect[open] summary::before {
  background: var(--color-accent-2);
}

.page-about .about-dialect p {
  margin: 0.6rem 0 0 1.75rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ===== 收尾 ===== */
.page-about .about-closing {
  background: var(--color-text);
  color: var(--color-white);
  padding: 4.5rem 0;
}

.page-about .about-closing__inner {
  max-width: 54rem;
}

.page-about .about-closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.page-about .about-closing p {
  color: rgba(255, 249, 240, 0.85);
  line-height: 1.85;
  font-size: 1.02rem;
  margin: 0;
}

.page-about .about-closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .about-closing__ghost {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.4rem;
  border: 1px solid rgba(255, 249, 240, 0.45);
  border-radius: 999px;
  color: var(--color-white);
  background: transparent;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-about .about-closing__ghost:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 5.5rem 0 4.5rem;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(120px, 0.8fr) minmax(0, 1.3fr);
    gap: 2rem;
    align-items: center;
  }

  .page-about .about-hero__chili {
    position: static;
    font-size: clamp(4.8rem, 10vw, 7.8rem);
    color: var(--color-white);
    opacity: 0.95;
    align-self: center;
    justify-self: center;
    writing-mode: vertical-rl;
    text-shadow: 0 20px 28px rgba(0, 0, 0, 0.2);
  }

  .page-about .about-hero__content {
    padding-top: 1.75rem;
  }

  .page-about .about-hero__links {
    margin-top: 3rem;
  }

  .page-about .about-section {
    padding: 4.5rem 0 4rem;
  }

  .page-about .about-origin__layout {
    grid-template-columns: 1.15fr 1fr;
  }

  .page-about .about-origin__media::before {
    top: 18px;
    right: -18px;
    bottom: -18px;
    left: 18px;
  }

  .page-about .about-why__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2rem;
    align-items: start;
  }

  .page-about .about-why__points {
    gap: 1.1rem;
  }

  .page-about .about-timeline__evolution {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
    padding: 1.25rem;
  }

  .page-about .about-heat__layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 2.25rem;
    align-items: center;
  }
}

/* ===== 宽屏桌面：横向时间线 ===== */
@media (min-width: 960px) {
  .page-about .about-why__points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-about .about-timeline {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1rem;
    padding-top: 2.2rem;
  }

  .page-about .about-timeline::before {
    top: 2.2rem;
    bottom: auto;
    left: 0;
    right: 0;
    height: 2px;
    width: auto;
    background: linear-gradient(90deg, var(--color-primary), var(--color-line), var(--color-accent-2));
  }

  .page-about .about-timeline__item {
    padding: 2.6rem 0.5rem 0;
  }

  .page-about .about-timeline__dot {
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%) rotate(-12deg);
  }

  .page-about .about-ningxia__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
  }
}