/* ===================== page-about ===================== */
.page-about {
  --about-cut: 22px;
  --about-line: var(--k8-border);
  --about-paper-ink: var(--k8-ink);
  display: block;
  background: var(--k8-bg);
  color: var(--k8-text);
  font-family: var(--k8-font-body);
  overflow-x: hidden;
}

.page-about .k8-wrap {
  width: 100%;
}

.page-about h2 {
  font-family: var(--k8-font-display);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.28;
  margin: 0 0 var(--k8-s16);
  color: var(--k8-white);
}

.page-about h3 {
  font-family: var(--k8-font-display);
  font-size: var(--k8-t20);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
  margin: 0 0 var(--k8-s8);
  color: var(--k8-white);
}

.page-about p {
  margin: 0 0 1.2em;
  font-size: var(--k8-t16);
  line-height: 1.75;
  color: var(--k8-text);
}

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

.page-about a {
  color: var(--k8-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 216, 255, 0.35);
  transition: color 160ms var(--k8-ease), border-color 160ms var(--k8-ease);
}

.page-about a:hover,
.page-about a:focus-visible {
  color: var(--k8-lime);
  border-bottom-color: var(--k8-lime);
}

.page-about .k8-breadcrumb {
  padding: var(--k8-s24) 0 var(--k8-s8);
}

.page-about .about-dim {
  color: var(--k8-text-dim);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: var(--k8-s16) 0 var(--k8-s48);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(300px, 55%);
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--k8-lime) 0 2px, transparent 2px 18px);
  opacity: 0.85;
}

.page-about .about-hero__inner {
  display: grid;
  gap: var(--k8-s32);
  align-items: end;
}

.page-about .about-hero__intro h1 {
  font-family: var(--k8-font-display);
  font-size: clamp(30px, 5.2vw, 54px);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.14;
  margin: var(--k8-s12) 0 var(--k8-s16);
  color: var(--k8-white);
}

.page-about .about-hero__lead {
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.8;
  color: var(--k8-text);
  max-width: 40em;
  margin-bottom: var(--k8-s24);
}

.page-about .about-hero__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--k8-s8) var(--k8-s16);
}

.page-about .about-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: var(--k8-s8);
  padding: 6px 12px;
  font-size: var(--k8-t12);
  color: var(--k8-text-dim);
  border: 1px solid var(--about-line);
  border-radius: var(--k8-radius);
  background: rgba(19, 28, 49, 0.6);
}

.page-about .about-hero__meta .k8-mono {
  color: var(--k8-lime);
  font-size: var(--k8-t14);
  letter-spacing: 0.02em;
}

/* ---------- 通用图容器 ---------- */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure__media {
  position: relative;
  overflow: hidden;
  background-color: var(--k8-panel);
  background-image:
    linear-gradient(var(--about-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line) 1px, transparent 1px);
  background-size: 34px 34px;
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

.page-about .about-figure__media::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: var(--about-cut);
  height: var(--about-cut);
  background: linear-gradient(45deg, transparent 46%, var(--k8-blue) 48% 52%, transparent 54%);
  pointer-events: none;
}

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

.page-about .about-figure figcaption {
  margin-top: var(--k8-s8);
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.01em;
  color: var(--k8-text-dim);
}

.page-about .about-figure--timeline {
  margin-top: var(--k8-s32);
}

/* ---------- 正文骨架：目录 + 内容流 ---------- */
.page-about .about-body {
  display: grid;
  gap: var(--k8-s32);
  padding-top: var(--k8-s32);
  padding-bottom: var(--k8-s72);
}

.page-about .about-toc__title {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--k8-text-dim);
  margin: 0 0 var(--k8-s8);
}

.page-about .about-toc__list {
  list-style: none;
  display: flex;
  gap: var(--k8-s8);
  margin: 0;
  padding: 0 0 var(--k8-s8);
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-toc__link {
  display: block;
  white-space: nowrap;
  padding: 7px 14px;
  font-size: var(--k8-t14);
  color: var(--k8-text-dim);
  border: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  border-radius: var(--k8-radius);
  background: rgba(12, 18, 32, 0.7);
  transition: color 160ms var(--k8-ease), border-color 160ms var(--k8-ease), background 160ms var(--k8-ease);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--k8-white);
  border-color: var(--k8-blue);
  background: var(--k8-hover-wash);
}

.page-about .about-toc__link.is-active {
  color: var(--k8-white);
  background: rgba(46, 123, 255, 0.22);
  border-color: var(--k8-blue);
  box-shadow: inset 0 -2px 0 var(--k8-lime);
}

.page-about .about-sec {
  padding-bottom: var(--k8-s48);
  border-bottom: 1px solid var(--about-line);
  margin-bottom: var(--k8-s48);
}

.page-about .about-sec:last-child {
  margin-bottom: 0;
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-sec .k8-eyebrow {
  display: block;
  margin-bottom: var(--k8-s8);
  color: var(--k8-cyan);
  letter-spacing: 0.08em;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  margin-top: var(--k8-s24);
  padding-left: 34px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--k8-lime), var(--k8-blue) 35%, var(--k8-cyan) 70%, rgba(38, 48, 74, 0.2));
}

.page-about .about-node {
  position: relative;
  border-top: 1px solid var(--about-line);
}

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

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--k8-blue);
  border: 2px solid var(--k8-bg);
}

.page-about .about-node--live::before {
  background: var(--k8-lime);
  box-shadow: 0 0 0 4px rgba(182, 255, 60, 0.16);
  animation: about-pulse 1.6s ease-in-out infinite;
}

@keyframes about-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.18); opacity: 0.78; }
}

.page-about .about-node > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--k8-s8) var(--k8-s12);
  padding: var(--k8-s16) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-node > summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t14);
  color: var(--k8-text-dim);
  transition: color 160ms var(--k8-ease);
}

.page-about .about-node[open] > summary::after {
  content: "－";
  color: var(--k8-lime);
}

.page-about .about-node__ver {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t14);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--k8-lime);
  padding: 3px 9px;
  border: 1px solid rgba(182, 255, 60, 0.35);
  border-radius: var(--k8-radius);
  background: rgba(182, 255, 60, 0.08);
}

.page-about .about-node__title {
  font-family: var(--k8-font-display);
  font-size: var(--k8-t20);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--k8-white);
}

.page-about .about-node__body {
  padding: 0 0 var(--k8-s16);
}

.page-about .about-node__body p {
  color: var(--k8-text-dim);
  font-size: var(--k8-t16);
  border-left: 2px solid var(--k8-blue);
  padding-left: var(--k8-s16);
}

/* ---------- 团队三栏 ---------- */
.page-about .about-team {
  display: grid;
  gap: var(--k8-s16);
  margin-top: var(--k8-s24);
}

.page-about .about-team__unit {
  padding: var(--k8-s24);
  background: var(--k8-surface);
  border: 1px solid var(--about-line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: transform 220ms var(--k8-ease), border-color 220ms var(--k8-ease);
}

.page-about .about-team__unit:hover {
  transform: translateY(-3px);
  border-color: var(--k8-blue);
}

.page-about .about-team__unit h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--k8-s8);
}

.page-about .about-team__count {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t14);
  font-weight: 600;
  color: var(--k8-orange);
  letter-spacing: 0.04em;
}

.page-about .about-team__unit p {
  font-size: var(--k8-t14);
  line-height: 1.7;
  color: var(--k8-text-dim);
  margin-bottom: var(--k8-s8);
}

.page-about .about-team__more {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12) !important;
  color: var(--k8-silver) !important;
  border-left: 2px solid var(--about-line);
  padding-left: var(--k8-s12);
  opacity: 0.75;
  transition: opacity 200ms var(--k8-ease), border-color 200ms var(--k8-ease), color 200ms var(--k8-ease);
}

.page-about .about-team__unit:hover .about-team__more {
  opacity: 1;
  color: var(--k8-cyan) !important;
  border-left-color: var(--k8-cyan);
}

/* ---------- 生产流程 ---------- */
.page-about .about-process {
  margin-top: var(--k8-s24);
  align-items: start;
}

.page-about .about-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--k8-s16);
}

.page-about .about-step {
  position: relative;
  padding: var(--k8-s20, 20px) var(--k8-s24) var(--k8-s24);
  background: var(--k8-surface);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--k8-blue);
}

.page-about .about-step__num {
  display: block;
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t26);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(46, 123, 255, 0.55);
  margin-bottom: var(--k8-s8);
}

.page-about .about-step h3 {
  font-size: var(--k8-t20);
  margin-bottom: var(--k8-s8);
}

.page-about .about-step p {
  font-size: var(--k8-t14);
  line-height: 1.75;
  color: var(--k8-text-dim);
}

.page-about .about-figure--process {
  margin-top: var(--k8-s24);
}

/* ---------- 档案纸面板 ---------- */
.page-about .about-paper {
  position: relative;
  padding: var(--k8-s32) var(--k8-s24);
  background: var(--k8-paper);
  color: var(--about-paper-ink);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  box-shadow: 0 24px 48px -32px rgba(0, 0, 0, 0.9);
}

.page-about .about-paper::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed rgba(28, 26, 23, 0.22);
  pointer-events: none;
}

.page-about .about-paper__label {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(28, 26, 23, 0.6);
  margin: 0 0 var(--k8-s8);
}

.page-about .about-paper h2 {
  color: var(--about-paper-ink);
}

.page-about .about-paper p {
  color: rgba(28, 26, 23, 0.86);
  font-size: var(--k8-t16);
}

.page-about .about-paper a {
  color: #1E56C8;
  border-bottom-color: rgba(30, 86, 200, 0.4);
}

.page-about .about-paper a:hover,
.page-about .about-paper a:focus-visible {
  color: #0F3A8C;
  border-bottom-color: #0F3A8C;
}

.page-about .about-paper__list {
  list-style: none;
  margin: var(--k8-s16) 0 var(--k8-s16);
  padding: 0;
  display: grid;
  gap: var(--k8-s8);
}

.page-about .about-paper__list li {
  position: relative;
  padding-left: var(--k8-s24);
  font-size: var(--k8-t14);
  line-height: 1.7;
  color: rgba(28, 26, 23, 0.9);
}

.page-about .about-paper__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 8px;
  height: 8px;
  background: #1E56C8;
  transform: rotate(45deg);
}

.page-about .about-paper__list .k8-mono {
  font-weight: 700;
  color: #0F3A8C;
  margin-right: 4px;
}

.page-about .about-paper__foot {
  padding-top: var(--k8-s16);
  border-top: 1px solid rgba(28, 26, 23, 0.18);
  font-size: var(--k8-t14) !important;
}

/* ---------- 登记信息 ---------- */
.page-about .about-registry {
  margin-top: var(--k8-s24);
  padding: var(--k8-s24);
  background: var(--k8-bg-alt);
  border: 1px solid var(--about-line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .about-registry__list {
  display: grid;
  gap: var(--k8-s16);
  margin: 0 0 var(--k8-s16);
  padding: 0 0 var(--k8-s16);
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-registry__list dt {
  font-family: var(--k8-font-mono);
  font-size: var(--k8-t12);
  letter-spacing: 0.06em;
  color: var(--k8-text-dim);
  margin-bottom: 4px;
}

.page-about .about-registry__list dd {
  margin: 0;
  font-size: var(--k8-t16);
  color: var(--k8-white);
}

.page-about .about-registry__list dd.k8-mono {
  color: var(--k8-lime);
  letter-spacing: 0.04em;
}

.page-about .about-registry__note {
  font-size: var(--k8-t14);
  line-height: 1.75;
  color: var(--k8-text-dim);
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 641px) {
  .page-about .about-body {
    padding-top: var(--k8-s48);
  }

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

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

  .page-about .about-paper {
    padding: var(--k8-s48) var(--k8-s48);
  }

  .page-about .about-paper__list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--k8-s12) var(--k8-s24);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: var(--k8-s48);
  }

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

@media (min-width: 1024px) {
  .page-about .about-body {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: var(--k8-s48);
  }

  .page-about .about-toc {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-about .about-toc__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-toc__link {
    white-space: normal;
  }

  .page-about .about-node__title {
    font-size: var(--k8-t26);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-node--live::before {
    animation: none;
  }

  .page-about .about-team__unit:hover {
    transform: none;
  }
}
<<<END>>>

.page-about {
  --k8-s20: 1rem;
}