.page-about {
  --about-line: rgba(25, 227, 209, 0.16);
  --about-text: rgba(234, 247, 255, 0.78);
  --about-text-soft: rgba(234, 247, 255, 0.64);
  --about-pad: clamp(36px, 6vw, 72px);
  background: var(--ink-900);
  color: var(--ice-100);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(84px, 13vw, 148px) 0 clamp(36px, 6vw, 64px);
  background:
    radial-gradient(ellipse 58% 52% at 88% 10%, rgba(25, 227, 209, 0.20), transparent 70%),
    radial-gradient(ellipse 52% 44% at 4% 92%, rgba(255, 178, 62, 0.09), transparent 72%),
    linear-gradient(180deg, #04121d 0%, var(--ink-900) 66%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-500));
  opacity: 0.55;
  pointer-events: none;
}

.page-about .about-hero__title {
  margin: clamp(14px, 2vw, 22px) 0 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.4vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--ice-100);
}

.page-about .about-hero__lead {
  margin: clamp(18px, 3vw, 28px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--about-text);
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(30px, 5vw, 52px);
  background: var(--about-line);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .hero-stats__item {
  padding: clamp(16px, 2.6vw, 24px);
  background: rgba(10, 37, 64, 0.72);
}

.page-about .hero-stats__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 38px);
  line-height: 1.05;
  color: var(--cyan-300);
}

.page-about .hero-stats__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist-400);
}

/* ---------- 主体：左索引 + 右内容 ---------- */
.page-about .about-body {
  padding: clamp(40px, 7vw, 88px) 0 clamp(56px, 9vw, 120px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

.page-about .about-index {
  align-self: start;
}

.page-about .about-index__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist-400);
}

.page-about .about-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius-pill);
  background: rgba(14, 53, 82, 0.42);
  color: var(--about-text);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-index__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
}

.page-about .about-index__text {
  font-size: 13px;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  border-color: var(--cyan-500);
  background: rgba(25, 227, 209, 0.10);
  color: var(--ice-100);
}

/* ---------- 内容块 ---------- */
.page-about .about-block {
  padding: var(--about-pad) 0;
}

.page-about .about-block:not(.about-block--panel):not(.about-block--wine) {
  border-top: 1px solid var(--about-line);
}

.page-about .about-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-block__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-about .about-block__no {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan-500);
}

.page-about .about-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.14;
  color: var(--ice-100);
}

.page-about .about-block__text {
  margin: 0;
  max-width: 68ch;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: var(--about-text);
}

.page-about .about-block__text--note {
  margin-top: clamp(18px, 3vw, 26px);
  font-size: 14px;
  color: var(--about-text-soft);
}

.page-about .about-block__text a {
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 242, 232, 0.45);
}

.page-about .about-block__text a:hover {
  color: var(--ice-100);
  border-bottom-color: var(--ice-100);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: clamp(22px, 3.6vw, 34px) 0 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-line);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-about .about-figure--panel {
  border-color: rgba(155, 120, 200, 0.26);
  background: rgba(6, 24, 38, 0.55);
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0 0 0 24px;
  list-style: none;
  border-left: 1px solid var(--about-line);
}

.page-about .tl__item {
  position: relative;
  padding-bottom: clamp(22px, 3.4vw, 34px);
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan-500);
  box-shadow: 0 0 0 4px rgba(25, 227, 209, 0.12);
}

.page-about .tl__year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.4vw, 22px);
  letter-spacing: 0.1em;
  color: var(--cyan-300);
}

.page-about .tl__title {
  margin: 6px 0 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--ice-100);
}

.page-about .tl__desc {
  margin: 6px 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--about-text-soft);
}

/* ---------- 服务覆盖 ---------- */
.page-about .coverage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(22px, 3.6vw, 32px);
  align-items: start;
}

.page-about .coverage .about-figure {
  margin: 0;
}

.page-about .legend {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .legend__item {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(11, 59, 54, 0.9);
  background: rgba(11, 59, 54, 0.42);
}

.page-about .legend__k {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-300);
}

.page-about .legend__dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan-500);
  flex: none;
}

.page-about .legend__dot--mist {
  background: var(--mist-400);
}

.page-about .legend__dot--amber {
  background: var(--amber-400);
}

.page-about .legend__v {
  margin: 7px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--about-text-soft);
}

/* ---------- 团队（靛紫分区） ---------- */
.page-about .about-block--panel {
  margin: clamp(20px, 4vw, 36px) 0;
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(155, 120, 200, 0.24);
  background:
    radial-gradient(ellipse 70% 100% at 100% 0%, rgba(92, 242, 232, 0.10), transparent 66%),
    linear-gradient(155deg, rgba(59, 31, 77, 0.92), rgba(59, 31, 77, 0.52));
}

.page-about .crew {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .crew__item {
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(234, 247, 255, 0.10);
  background: rgba(6, 24, 38, 0.42);
}

.page-about .crew__name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ice-100);
}

.page-about .crew__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--about-text-soft);
}

/* ---------- 数据 ---------- */
.page-about .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3.6vw, 32px);
  background: var(--about-line);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .stats__cell {
  padding: clamp(16px, 2.8vw, 26px);
  background: var(--ink-800);
}

.page-about .stats__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 38px);
  line-height: 1.05;
  color: var(--amber-400);
}

.page-about .stats__label {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist-400);
}

/* ---------- 荣誉 ---------- */
.page-about .honor {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(22px, 3.6vw, 32px);
}

.page-about .honor__card {
  position: relative;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(25, 227, 209, 0.18);
  background: rgba(14, 53, 82, 0.5);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-about .honor__card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan-500);
  background: rgba(14, 53, 82, 0.72);
}

.page-about .honor__year {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan-500);
}

.page-about .honor__name {
  margin: 10px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice-100);
}

.page-about .honor__desc {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--about-text-soft);
}

/* ---------- 售后承诺（酒红分区） ---------- */
.page-about .about-block--wine {
  margin: clamp(20px, 4vw, 36px) 0;
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 178, 62, 0.16);
  background:
    radial-gradient(ellipse 60% 100% at 0% 0%, rgba(255, 178, 62, 0.10), transparent 68%),
    linear-gradient(150deg, rgba(90, 31, 46, 0.90), rgba(90, 31, 46, 0.46));
}

.page-about .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .steps__item {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(234, 247, 255, 0.12);
  background: rgba(6, 24, 38, 0.40);
}

.page-about .steps__no {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--amber-400);
}

.page-about .steps__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-text);
}

/* ---------- 延伸入口 ---------- */
.page-about .next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: clamp(28px, 5vw, 52px);
  padding-top: clamp(22px, 3.6vw, 34px);
  border-top: 1px solid var(--about-line);
}

.page-about .next-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--about-line);
  color: var(--ice-100);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.6;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .next-link__arrow {
  flex: none;
  font-family: var(--font-mono);
  color: var(--cyan-500);
  transition: transform 0.2s var(--ease);
}

.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  border-color: var(--cyan-500);
  background: rgba(25, 227, 209, 0.07);
}

.page-about .next-link:hover .next-link__arrow {
  transform: translateX(3px);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-about .crew {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .honor {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .coverage {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-about .stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-about .about-body {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-about .about-index__link {
    width: 100%;
    border-radius: var(--radius-sm);
    border-color: transparent;
    background: transparent;
    padding: 9px 12px;
  }

  .page-about .about-index__link:hover,
  .page-about .about-index__link:focus-visible {
    border-color: var(--about-line);
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero {
    padding-top: clamp(120px, 11vw, 168px);
  }

  .page-about .about-hero__title {
    max-width: 18ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .honor__card,
  .page-about .next-link,
  .page-about .about-index__link,
  .page-about .next-link__arrow {
    transition: none;
  }

  .page-about .honor__card:hover {
    transform: none;
  }

  .page-about .next-link:hover .next-link__arrow {
    transform: none;
  }
}