/* ============ 品牌志 / about ============ */

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: clamp(20px, 4vw, 40px);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-about .breadcrumb a {
  color: var(--graphite);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

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

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

.page-about .breadcrumb-sep {
  color: var(--line-2);
}

/* ---------- 刊头 ---------- */

.page-about .about-masthead {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 64px) 0 clamp(48px, 8vw, 100px);
}

.page-about .about-masthead::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -140px;
  width: clamp(280px, 46vw, 560px);
  height: clamp(280px, 46vw, 560px);
  background: radial-gradient(circle at 35% 35%, rgba(255, 77, 26, 0.24), rgba(255, 77, 26, 0) 62%);
  pointer-events: none;
}

.page-about .masthead-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 6vw, 56px);
}

.page-about .masthead-title {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(38px, 8.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 18px 0 0;
  max-width: 15em;
}

.page-about .masthead-accent {
  position: relative;
  color: var(--flame);
}

.page-about .masthead-accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.08em;
  height: 0.08em;
  background: var(--flame);
  transform: skewX(-26deg);
  transform-origin: left bottom;
  opacity: 0.8;
}

.page-about .masthead-lead {
  margin: 22px 0 0;
  font-size: clamp(17px, 2.2vw, 22px);
  line-height: 1.72;
  color: var(--paper);
  max-width: 26em;
}

.page-about .masthead-drop {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--on-pitch);
  max-width: 40em;
}

.page-about .masthead-drop::first-letter {
  float: left;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 64px;
  line-height: 0.8;
  color: var(--flame);
  margin: 8px 14px 0 0;
}

.page-about .masthead-aside {
  border-top: 2px solid var(--flame);
  padding-top: 20px;
}

.page-about .aside-note {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 30em;
}

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

.page-about .aside-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-about .aside-key {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-about .aside-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--amber);
  white-space: nowrap;
}

/* ---------- 通用小件 ---------- */

.page-about .eyebrow-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--flame);
  margin-right: 10px;
  letter-spacing: 0.04em;
}

.page-about .section-lead {
  margin: 18px 0 0;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.9;
  color: var(--on-pitch);
  max-width: 40em;
}

.page-about .about-story,
.page-about .about-identity,
.page-about .about-method,
.page-about .about-team,
.page-about .about-almanac,
.page-about .about-partners {
  border-top: 1px solid var(--line);
}

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

/* ---------- 起点 ---------- */

.page-about .story-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 64px);
}

.page-about .story-copy p {
  margin: 0 0 18px;
  font-size: clamp(15px, 1.7vw, 16.5px);
  line-height: 1.95;
  color: var(--on-pitch);
  max-width: 40em;
}

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

.page-about .side-note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line-2);
  font-size: 13px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 34em;
  transition: border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-about .side-note:hover,
.page-about .side-note:focus-within {
  border-left-color: var(--flame);
  color: var(--paper);
}

/* ---------- 标识 ---------- */

.page-about .identity-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 48px);
}

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

.page-about .identity-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .identity-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

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

.page-about .identity-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--flame);
  padding-top: 6px;
}

.page-about .identity-name {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(18px, 2.3vw, 23px);
  line-height: 1.4;
  color: var(--paper);
}

.page-about .identity-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.92;
  color: var(--on-pitch);
  max-width: 38em;
}

/* ---------- 做法 ---------- */

.page-about .method-list {
  margin-top: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-about .method-item {
  border-bottom: 1px solid var(--line);
}

.page-about .method-item > summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(16.5px, 2.1vw, 21px);
  line-height: 1.45;
  color: var(--paper);
  transition: color 160ms var(--ease);
}

.page-about .method-item > summary::-webkit-details-marker {
  display: none;
}

.page-about .method-item > summary:hover,
.page-about .method-item > summary:focus-visible {
  color: var(--flame);
}

.page-about .method-step {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mint);
  flex: 0 0 auto;
}

.page-about .method-name {
  flex: 1 1 auto;
}

.page-about .method-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  color: var(--flame);
  transition: transform 220ms var(--ease);
}

.page-about .method-item[open] > summary::after {
  transform: rotate(45deg);
}

.page-about .method-body {
  padding: 0 0 26px;
}

.page-about .method-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
  color: var(--on-pitch);
  max-width: 42em;
}

/* ---------- 班子 ---------- */

.page-about .team-grid {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .team-card {
  background: var(--ink);
  padding: clamp(22px, 3vw, 32px);
}

.page-about .team-head {
  margin: 0 0 14px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .team-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 4.6vw, 46px);
  line-height: 1;
  color: var(--amber);
}

.page-about .team-unit {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-about .team-name {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .team-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--graphite);
}

/* ---------- 年鉴 ---------- */

.page-about .almanac-media {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-about .almanac-wrap {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-about .almanac-track {
  display: flex;
  gap: clamp(20px, 3vw, 36px);
  list-style: none;
  margin: 0;
  padding: 0 0 20px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--ember) transparent;
}

.page-about .almanac-track::-webkit-scrollbar {
  height: 3px;
}

.page-about .almanac-track::-webkit-scrollbar-track {
  background: var(--line);
}

.page-about .almanac-track::-webkit-scrollbar-thumb {
  background: var(--ember);
}

.page-about .almanac-node {
  position: relative;
  flex: 0 0 min(74vw, 258px);
  scroll-snap-align: start;
  padding-top: 22px;
  border-top: 1px solid var(--line-2);
}

.page-about .almanac-node::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 42px;
  height: 2px;
  background: var(--flame);
}

.page-about .almanac-year {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 12px;
}

.page-about .almanac-name {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.35;
  color: var(--paper);
}

.page-about .almanac-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--graphite);
}

/* ---------- 同行 ---------- */

.page-about .partners-grid {
  margin-top: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .partner-block {
  background: var(--ink);
  padding: clamp(24px, 3.4vw, 38px);
}

.page-about .partner-head {
  margin: 0 0 14px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .partner-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1;
  color: var(--mint);
}

.page-about .partner-unit {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-about .partner-name {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.4;
  color: var(--paper);
}

.page-about .partner-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--on-pitch);
  max-width: 34em;
}

.page-about .partner-block--award {
  background: var(--pitch);
}

.page-about .award-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .award-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
}

.page-about .award-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 2px;
  background: var(--amber);
}

/* ---------- 下一步 ---------- */

.page-about .about-next {
  padding: clamp(48px, 8vw, 96px) 0;
  background: var(--pitch);
  border-top: 1px solid var(--line);
}

.page-about .next-inner {
  display: grid;
  gap: 20px;
}

.page-about .next-title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: 1.2;
  color: var(--paper);
}

.page-about .next-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--on-pitch);
  max-width: 40em;
}

.page-about .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* ---------- 桌面端栅格 ---------- */

@media (min-width: 900px) {
  .page-about .masthead-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(32px, 5vw, 84px);
  }

  .page-about .story-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(36px, 6vw, 88px);
  }

  .page-about .identity-grid {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    column-gap: clamp(36px, 6vw, 88px);
    row-gap: clamp(24px, 3vw, 40px);
  }

  .page-about .identity-head {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .identity-media {
    grid-column: 1;
    grid-row: 2;
  }

  .page-about .identity-list {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

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

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

  .page-about .next-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(32px, 5vw, 72px);
  }

  .page-about .next-title {
    grid-column: 1;
  }

  .page-about .next-text {
    grid-column: 1;
  }

  .page-about .next-links {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: end;
  }
}

@media (min-width: 640px) and (max-width: 899px) {
  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .method-item > summary::after,
  .page-about .side-note,
  .page-about .breadcrumb a {
    transition: none;
  }
}
<<<END>>>