/* ============================================
   品牌档案 / page-about
   ============================================ */

.page-about {
  --about-rail: 0px;
}

@media (min-width: 960px) {
  .page-about {
    --about-rail: 96px;
  }
}

.page-about [data-section] {
  scroll-margin-top: 96px;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---- 面包屑 ---- */
.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(20px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--index);
}

.page-about .about-crumb a {
  color: var(--silver);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-crumb a:hover,
.page-about .about-crumb a:focus-visible {
  color: var(--orange);
}

.page-about .about-crumb [aria-current="page"] {
  color: var(--paper);
}

/* ---- 首屏框景 ---- */
.page-about .about-hero__frame {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
  padding: clamp(24px, 4.5vw, 56px);
}

.page-about .about-hero__title {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(32px, 6.4vw, 64px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--silver);
}

.page-about .about-hero__panels {
  display: grid;
  gap: 14px;
  margin-top: clamp(4px, 1.4vw, 14px);
}

@media (min-width: 700px) {
  .page-about .about-hero__panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---- 章节骨架 ---- */
.page-about .about-chapter__grid {
  display: grid;
  gap: 18px;
}

@media (min-width: 960px) {
  .page-about .about-chapter__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
  }
}

.page-about .about-chapter__index {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--index);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-chapter__index::after {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.page-about .about-chapter__index:hover,
.page-about .about-chapter__index:focus-visible {
  color: var(--orange);
}

.page-about .about-chapter__body {
  min-width: 0;
}

.page-about .about-chapter__title {
  margin: 0 0 20px;
  max-width: 15ch;
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-chapter__body > p {
  margin: 0 0 18px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

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

.page-about .about-chapter__body a {
  color: var(--turf);
  text-decoration: none;
  border-bottom: 1px solid var(--turf-deep);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-chapter__body a:hover,
.page-about .about-chapter__body a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---- 四条主线 ---- */
.page-about .about-capsules {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-lines {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

@media (min-width: 760px) {
  .page-about .about-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px clamp(20px, 3vw, 40px);
  }
}

.page-about .about-line {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-about .about-line__mark {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-line__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-line__text {
  margin: 0;
  max-width: 30em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-about .about-chapter__body p.about-chapter__foot {
  margin-top: 30px;
  padding-left: 16px;
  border-left: 2px solid var(--turf-deep);
  font-size: 14px;
  line-height: 1.72;
  color: var(--index);
}

/* ---- 流程章节 ---- */
.page-about .about-flow {
  padding-block: clamp(48px, 7vw, 88px) 0;
}

.page-about .about-flow__media img {
  display: block;
  width: 100%;
  height: clamp(200px, 34vw, 420px);
  object-fit: cover;
  object-position: center 40%;
}

.page-about .about-flow__body {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-about .about-flow__track {
  display: none;
  width: 100%;
  max-width: 880px;
  height: auto;
  margin: 34px 0 6px;
}

@media (min-width: 900px) {
  .page-about .about-flow__track {
    display: block;
  }
}

.page-about .about-flow__track .track-line {
  stroke: var(--line);
}

.page-about .about-flow__track .track-dot {
  fill: var(--turf);
}

.page-about .about-flow__track .track-dot--accent {
  fill: var(--orange);
}

.page-about .about-flow__track .track-dot--end {
  fill: var(--silver);
}

.page-about .about-flow__steps {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

@media (min-width: 720px) {
  .page-about .about-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px clamp(20px, 3vw, 36px);
  }
}

@media (min-width: 1120px) {
  .page-about .about-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .about-step {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-about .about-step__no {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--turf);
}

.page-about .about-step:first-child .about-step__no {
  color: var(--orange);
}

.page-about .about-step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.32;
  color: var(--paper);
}

.page-about .about-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---- 浅色反转区：团队 ---- */
.page-about .about-chapter--light {
  padding-block: var(--gap-section);
  background: var(--light);
  color: var(--light-ink);
}

.page-about .about-chapter--light .about-chapter__index {
  color: var(--light-ink);
  opacity: 0.45;
}

.page-about .about-chapter--light .about-chapter__index:hover,
.page-about .about-chapter--light .about-chapter__index:focus-visible {
  opacity: 1;
  color: var(--turf-deep);
}

.page-about .about-chapter--light .about-chapter__title {
  color: var(--light-ink);
}

.page-about .about-team {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

.page-about .about-team__text p {
  margin: 0 0 18px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--light-ink);
  opacity: 0.78;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
  margin: 28px 0 26px;
  padding: 0;
  list-style: none;
}

.page-about .about-team__stats li {
  padding-top: 14px;
  border-top: 1px solid rgba(16, 35, 58, 0.2);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--light-ink);
}

.page-about .about-team__unit {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--light-ink);
  opacity: 0.7;
}

.page-about .about-team__media {
  margin: 0;
}

.page-about .about-chapter--light .media__caption {
  color: var(--light-ink);
  opacity: 0.66;
}

/* ---- 归档制度 ---- */
.page-about .about-archive__list {
  display: grid;
  margin: 28px 0 32px;
  padding: 0;
  list-style: none;
  max-width: 46em;
}

.page-about .about-archive__list li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-about .about-archive__list li:last-child {
  border-bottom: 1px solid var(--line);
}

@media (min-width: 620px) {
  .page-about .about-archive__list li {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

.page-about .about-archive__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--turf);
}

.page-about .about-archive__val {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-about .about-num {
  font-family: var(--font-mono);
  font-size: 1.05em;
  letter-spacing: 0.02em;
  color: var(--orange);
  padding-inline: 2px;
}

.page-about .about-qa {
  max-width: 44em;
  margin-top: 14px;
}

.page-about .about-archive__media {
  margin-top: clamp(36px, 5vw, 56px);
}

.page-about .about-archive__media .media {
  margin: 0;
}

/* ---- 纠错通道 ---- */
.page-about .about-report__box {
  max-width: 46em;
  margin-top: 28px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
}

.page-about .about-report__hint {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

.page-about .about-report__req {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-about .about-report__req li {
  padding: 7px 14px;
  border-radius: var(--r-pill);
  background: var(--turf-deep);
  color: var(--paper);
  font-size: 13px;
  line-height: 1.4;
}

.page-about .about-report__box .btn {
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-chapter__index,
  .page-about .about-crumb a,
  .page-about .about-chapter__body a {
    transition: none;
  }
}
<<<END>>>