.page-about {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  letter-spacing: -.015em;
}

.page-about .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 5vw, 54px) 0 clamp(34px, 6vw, 70px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(46%, 520px);
  height: 100%;
  background: linear-gradient(160deg, rgba(87, 245, 210, .10), rgba(14, 42, 34, 0) 64%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-h1 {
  margin: 14px 0 0;
  font-size: clamp(31px, 7vw, 60px);
  line-height: 1.1;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-h1 em {
  font-style: normal;
  color: var(--cyan);
}

.page-about .about-lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(242, 232, 214, .82);
}

.page-about .about-lead + .about-lead {
  margin-top: 12px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 概况面板 */
.page-about .about-facts {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--panel);
}

.page-about .about-facts::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0 34%, var(--orange) 34% 48%, transparent 48%);
}

.page-about .about-facts__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--metal);
}

.page-about .about-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 16px;
  border-bottom: 1px dashed rgba(138, 150, 145, .18);
}

.page-about .about-fact__k {
  font-size: 13px;
  color: var(--metal);
}

.page-about .about-fact__v {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--paper);
  white-space: nowrap;
}

.page-about .about-fact__v strong {
  color: var(--cyan);
  font-weight: 600;
}

.page-about .about-facts__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--metal);
}

/* 复制按钮 */
.page-about .copy-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  line-height: 1.4;
  padding: 6px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-about .copy-btn:hover,
.page-about .copy-btn:focus-visible {
  background: rgba(87, 245, 210, .10);
  border-color: var(--cyan);
}

/* ---------- 章节导览 ---------- */
.page-about .about-toc {
  background: rgba(14, 42, 34, .6);
  border-bottom: 1px solid var(--line);
}

.page-about .about-toc__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-toc__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-toc__list li {
  flex: 0 0 auto;
  border-right: 1px solid var(--line);
}

.page-about .about-toc__list li:first-child {
  border-left: 1px solid var(--line);
}

.page-about .about-toc__list a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 14px 18px;
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  color: rgba(242, 232, 214, .74);
  transition: color .2s var(--ease), background .2s var(--ease);
}

.page-about .about-toc__list a:hover,
.page-about .about-toc__list a:focus-visible {
  color: var(--cyan);
  background: rgba(87, 245, 210, .07);
}

.page-about .about-toc__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
}

/* ---------- 通用章节头 ---------- */
.page-about .about-sechead {
  max-width: 46em;
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-about .about-sechead h2 {
  margin: 12px 0 0;
  font-size: clamp(23px, 3.6vw, 35px);
  line-height: 1.22;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-sechead p {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.78;
  color: rgba(242, 232, 214, .76);
}

/* ---------- 三条主线 ---------- */
.page-about .about-pillars {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-pillar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--panel);
  transition: background .24s var(--ease);
}

.page-about .about-pillar:hover {
  background: #10322A;
}

.page-about .about-pillar__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-about .about-pillar h3 {
  margin: 0;
  font-size: clamp(18px, 2.3vw, 22px);
  line-height: 1.34;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-pillar p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(242, 232, 214, .76);
}

.page-about .about-pillar a {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(87, 245, 210, .42);
  transition: border-color .2s var(--ease);
}

.page-about .about-pillar a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 团队 ---------- */
.page-about .about-team__top {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

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

.page-about .about-team__note {
  border-left: 2px solid var(--orange);
  padding: 4px 0 4px 18px;
}

.page-about .about-team__note-label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-about .about-team__note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(242, 232, 214, .78);
}

.page-about .about-roles__wrap {
  margin-top: clamp(24px, 4vw, 40px);
  overflow-x: auto;
}

.page-about .about-roles {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  color: var(--paper);
}

.page-about .about-roles thead {
  display: none;
}

.page-about .about-roles tbody,
.page-about .about-roles tr,
.page-about .about-roles th,
.page-about .about-roles td {
  display: block;
}

.page-about .about-roles tr {
  border: 1px solid var(--line);
  background: var(--panel);
  margin-bottom: 12px;
}

.page-about .about-roles th,
.page-about .about-roles td {
  padding: 11px 15px;
  text-align: left;
  border-bottom: 1px solid rgba(138, 150, 145, .14);
  line-height: 1.7;
}

.page-about .about-roles tr > *:last-child {
  border-bottom: 0;
}

.page-about .about-roles th {
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-roles th::before,
.page-about .about-roles td::before {
  content: attr(data-label);
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--metal);
  font-weight: 400;
}

.page-about .about-roles td {
  color: rgba(242, 232, 214, .78);
}

.page-about .about-stats {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3.5vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-stat {
  padding: 18px 20px;
  background: rgba(14, 42, 34, .8);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--metal);
}

/* ---------- 批次带 ---------- */
.page-about .about-batch {
  position: relative;
  overflow: hidden;
  margin: clamp(34px, 6vw, 72px) 0;
  padding: clamp(32px, 5vw, 64px) 0;
  background: var(--paper);
  color: var(--brown);
}

.page-about .about-batch::before {
  content: "";
  position: absolute;
  left: -10%;
  bottom: -34%;
  width: 62%;
  height: 96%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 122, 51, .18), transparent 62%);
  pointer-events: none;
}

.page-about .about-batch .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-batch__grid {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
  align-items: start;
}

.page-about .about-batch .eyebrow {
  color: rgba(58, 47, 36, .62);
}

.page-about .about-batch h2 {
  margin: 12px 0 0;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--brown);
}

.page-about .about-batch__code {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0 0;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(58, 47, 36, .28);
  font-family: var(--font-mono);
  font-size: clamp(19px, 3.2vw, 26px);
  letter-spacing: .02em;
  color: var(--brown);
}

.page-about .about-batch .copy-btn {
  color: var(--brown);
  border-color: rgba(58, 47, 36, .4);
}

.page-about .about-batch .copy-btn:hover,
.page-about .about-batch .copy-btn:focus-visible {
  background: rgba(58, 47, 36, .1);
  border-color: var(--brown);
}

.page-about .about-batch__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-batch__list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(58, 47, 36, .9);
}

.page-about .about-batch__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-about .about-batch__foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(58, 47, 36, .3);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(58, 47, 36, .74);
}

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

/* ---------- 回访 ---------- */
.page-about .about-revisit__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-about .about-scene {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

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

.page-about .about-scene__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-about .about-scene h3 {
  margin: 8px 0 0;
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-scene p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(242, 232, 214, .76);
}

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

/* ---------- 联系 ---------- */
.page-about .about-contact {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 42, 34, .62), rgba(7, 26, 22, 0) 78%);
}

.page-about .about-channels {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
}

.page-about .about-channel {
  padding: 20px;
  background: var(--panel);
}

.page-about .about-channel__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--metal);
}

.page-about .about-channel__val {
  margin: 9px 0 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-channel__hint {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.68;
  color: rgba(242, 232, 214, .6);
}

.page-about .about-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

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

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

@media (min-width: 820px) {
  .page-about .about-roles thead {
    display: table-header-group;
  }

  .page-about .about-roles tbody {
    display: table-row-group;
  }

  .page-about .about-roles tr {
    display: table-row;
    border: 0;
    margin: 0;
    background: transparent;
  }

  .page-about .about-roles th,
  .page-about .about-roles td {
    display: table-cell;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
  }

  .page-about .about-roles th::before,
  .page-about .about-roles td::before {
    display: none;
  }

  .page-about .about-roles thead th {
    padding-top: 0;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .16em;
    font-weight: 400;
    color: var(--metal);
    border-bottom: 1px solid var(--line-strong);
  }

  .page-about .about-roles tbody tr:hover th,
  .page-about .about-roles tbody tr:hover td {
    background: rgba(87, 245, 210, .05);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 1fr);
    align-items: start;
  }

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

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

  .page-about .about-batch__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-about .about-revisit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  }
}
<<<END>>>