.page-about {
  --about-rule: rgba(19, 26, 32, 0.14);
  --about-rule-inv: rgba(232, 238, 242, 0.18);
  --about-spine: var(--moss);
  position: relative;
  background-color: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
}

.page-about .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-about .lede {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.85;
  max-width: 34em;
}

.page-about .kicker {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lake-deep);
  margin: 0 0 14px;
}

.page-about .kicker--inv {
  color: var(--mist);
}

.page-about .idx {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--coral);
  letter-spacing: 0.08em;
}

.page-about .idx--lemon {
  color: var(--lemon);
}

.page-about .idx--dim {
  color: var(--mist);
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--lake-deep);
}

.page-about .breadcrumb a {
  color: var(--lake-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-micro) var(--ease-in);
}

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

.page-about .about-crumb {
  padding-top: 24px;
  padding-bottom: 4px;
}

.page-about .link {
  color: var(--lake-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(12, 85, 112, 0.4);
  transition: border-color var(--dur-micro) var(--ease-in), color var(--dur-micro) var(--ease-in);
}

.page-about .link:hover,
.page-about .link:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-about .hl {
  background: linear-gradient(transparent 62%, rgba(242, 209, 75, 0.55) 62%);
  transition: background var(--dur-micro) linear;
}

.page-about .hl.is-linked {
  background: rgba(242, 209, 75, 0.72);
}

/* ---------- 索引轨道 ---------- */

.page-about .anchor-rail {
  position: fixed;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: none;
  flex-direction: column;
  gap: 5px;
}

.page-about .anchor-rail__item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  text-decoration: none;
  background: var(--ink);
  border-left: 3px solid transparent;
  color: var(--mist);
  transition: border-color var(--dur-micro) var(--ease-in), color var(--dur-micro) var(--ease-in), background var(--dur-micro) var(--ease-in);
}

.page-about .anchor-rail__num {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-about .anchor-rail__label {
  font-size: 11px;
  white-space: nowrap;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-width 240ms var(--ease-in), opacity 200ms var(--ease-in);
}

.page-about .anchor-rail__item:hover,
.page-about .anchor-rail__item:focus-visible {
  background: var(--ink-2);
  color: var(--text-inv);
  border-left-color: var(--lake);
}

.page-about .anchor-rail__item[aria-current] {
  border-left-color: var(--lemon);
  color: var(--lemon);
}

.page-about .anchor-rail__item:hover .anchor-rail__label,
.page-about .anchor-rail__item:focus-visible .anchor-rail__label,
.page-about .anchor-rail__item[aria-current] .anchor-rail__label {
  max-width: 7em;
  opacity: 1;
}

@media (min-width: 1440px) {
  .page-about .anchor-rail {
    display: flex;
  }
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  padding: 40px 0 64px;
  position: relative;
}

.page-about .about-hero::after {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--about-rule);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 8vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  text-wrap: balance;
  color: var(--text);
}

.page-about .about-hero__lede {
  margin: 0;
  color: #2A3540;
}

.page-about .about-facts {
  align-self: end;
  background: var(--ink);
  color: var(--text-inv);
  padding: 22px 22px 18px;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  border-left: 6px solid var(--about-spine);
}

.page-about .about-facts__cap {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin: 0 0 16px;
}

.page-about .about-facts__list {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--about-rule-inv);
}

.page-about .about-facts__row:last-child {
  border-bottom: 0;
}

.page-about .about-facts__row dt {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-facts__row dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 3px;
  white-space: nowrap;
}

.page-about .about-facts__num {
  font-family: var(--font-num);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--lemon);
  letter-spacing: -0.01em;
}

.page-about .about-facts__num--sm {
  font-size: clamp(20px, 2.4vw, 26px);
}

.page-about .about-facts__unit {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-facts {
    margin-bottom: var(--baseline);
  }
}

/* ---------- 通用段落 ---------- */

.page-about .sec {
  position: relative;
  padding: 72px 0;
  scroll-margin-top: 90px;
}

.page-about .sec__head {
  max-width: 46em;
  margin-bottom: 44px;
}

.page-about .sec__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 44px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  text-wrap: balance;
  color: var(--text);
}

.page-about .sec__title--inv {
  color: var(--text-inv);
}

.page-about .sec__note {
  margin: 0;
  max-width: 34em;
  color: #3A4650;
  line-height: 1.85;
}

.page-about .sec__note--inv {
  color: var(--mist);
}

.page-about .prose p {
  margin: 0 0 20px;
  max-width: 34em;
}

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

.page-about .prose--inv {
  color: var(--text-inv);
}

/* ---------- 01 起步 ---------- */

.page-about .sec--start {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .start__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-about .start__figure {
  margin: 0;
  position: relative;
  border-left: 6px solid var(--about-spine);
}

.page-about .start__figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 240px;
  max-height: 560px;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  filter: saturate(0.86) contrast(1.04);
}

.page-about .start__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: #56636C;
  font-family: var(--font-body);
}

@media (min-width: 900px) {
  .page-about .start__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: stretch;
  }

  .page-about .start__figure {
    margin-top: var(--baseline);
  }
}

/* ---------- 02 栏目成形 ---------- */

.page-about .sec--lines {
  background: linear-gradient(180deg, rgba(222, 211, 196, 0.55) 0%, rgba(222, 211, 196, 0) 70%);
}

.page-about .flow {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  border-left: 1.5px solid var(--lake);
  display: grid;
  gap: 34px;
}

.page-about .flow__item {
  position: relative;
}

.page-about .flow__item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 20px;
  width: 18px;
  height: 1.5px;
  background: var(--lake);
}

.page-about .flow__mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-about .flow__dot {
  width: 11px;
  height: 11px;
  margin-left: -28px;
  transform: rotate(45deg);
  flex: none;
}

.page-about .flow__dot--coral {
  background: var(--coral);
}

.page-about .flow__dot--lake {
  background: var(--lake);
}

.page-about .flow__dot--lemon {
  background: var(--lemon);
}

.page-about .flow__tag {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lake-deep);
}

.page-about .flow__body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.24;
  margin: 0 0 10px;
  color: var(--text);
}

.page-about .flow__body p {
  margin: 0 0 12px;
  max-width: 40em;
  color: #2F3B45;
}

.page-about .flow__body .link {
  font-size: 14.5px;
}

.page-about .step-note {
  margin-top: 52px;
  padding: 24px 24px 20px;
  background: var(--paper-2);
  border-left: 6px solid var(--coral);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  max-width: 62em;
}

.page-about .step-note__k {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--coral);
  margin: 0 0 10px;
}

.page-about .step-note p:last-child {
  margin: 0;
  max-width: 42em;
  color: #2F3B45;
}

/* ---------- 03 版本时间轴 ---------- */

.page-about .sec--versions {
  position: relative;
  padding: 76px 0 68px;
  background: var(--ink);
  color: var(--text-inv);
  overflow: hidden;
  clip-path: polygon(0 0, 100% var(--slant), 100% 100%, 0 100%);
}

.page-about .vex-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.7);
  pointer-events: none;
}

.page-about .vex-inner {
  position: relative;
  z-index: 1;
}

.page-about .vex {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--about-rule-inv);
}

.page-about .vex__item {
  border-bottom: 1px solid var(--about-rule-inv);
}

.page-about .vex__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  transition: background var(--dur-micro) var(--ease-in);
}

.page-about .vex__summary::-webkit-details-marker {
  display: none;
}

.page-about .vex__summary:hover {
  background: rgba(232, 238, 242, 0.06);
}

.page-about .vex__summary:focus-visible {
  outline: 2px solid var(--lemon);
  outline-offset: 1px;
}

.page-about .vex__tag {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(18px, 2.6vw, 24px);
  letter-spacing: -0.01em;
  color: var(--lemon);
  min-width: 4.4em;
  flex: none;
}

.page-about .vex__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.3;
  color: var(--text-inv);
  flex: 1 1 auto;
}

.page-about .vex__arrow {
  flex: none;
  width: 8px;
  height: 8px;
  margin-right: 6px;
  border-top: 2px solid var(--mist);
  border-right: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform var(--dur-expand) var(--ease-in), border-color var(--dur-micro) var(--ease-in);
}

.page-about .vex__node[open] .vex__arrow {
  transform: rotate(135deg);
  border-color: var(--coral);
}

.page-about .vex__node[open] .vex__name {
  color: var(--lemon);
}

.page-about .vex__body {
  padding: 0 4px 20px 4px;
  animation: about-vex-in var(--dur-expand) var(--ease-in) both;
}

.page-about .vex__body p {
  margin: 0;
  max-width: 40em;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

@keyframes about-vex-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-about .vex-foot {
  margin: 34px 0 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  padding-left: 16px;
  border-left: 6px solid var(--lemon);
}

@media (min-width: 1024px) {
  .page-about .vex {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
    border-top: 0;
    border-bottom: 0;
    border-left: 1px solid var(--about-rule-inv);
  }

  .page-about .vex__item {
    border-bottom: 0;
    border-right: 1px solid var(--about-rule-inv);
    display: flex;
  }

  .page-about .vex__node {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 0 14px;
    transition: transform var(--dur-expand) var(--ease-in);
  }

  .page-about .vex__node:hover {
    transform: translateY(-6px);
  }

  .page-about .vex__summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 22px 0 18px;
    position: relative;
  }

  .page-about .vex__summary::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 26px;
    width: 9px;
    height: 9px;
    background: var(--lake);
    transform: rotate(45deg);
    transition: background var(--dur-micro) var(--ease-in);
  }

  .page-about .vex__node[open] .vex__summary::before {
    background: var(--coral);
  }

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

  .page-about .vex__arrow {
    margin: 6px 0 0;
  }

  .page-about .vex__body {
    padding: 0 0 22px 0;
  }
}

/* ---------- 04 团队 ---------- */

.page-about .sec--team {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-about .role {
  border-bottom: 1px solid var(--about-rule);
  background: var(--paper);
}

.page-about .role:first-child {
  border-top: 1px solid var(--about-rule);
}

.page-about .role__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 8px 16px 14px;
  cursor: pointer;
  list-style: none;
  border-left: 6px solid var(--about-spine);
  transition: background var(--dur-micro) var(--ease-in), border-color var(--dur-micro) var(--ease-in);
}

.page-about .role__sum::-webkit-details-marker {
  display: none;
}

.page-about .role__sum:hover {
  background: var(--paper-2);
}

.page-about .role__sum:focus-visible {
  outline: 2px solid var(--lemon);
  outline-offset: -2px;
}

.page-about .role[open] .role__sum {
  border-left-color: var(--coral);
}

.page-about .role__num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lake-deep);
  flex: none;
}

.page-about .role__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2.1vw, 21px);
  line-height: 1.28;
  flex: 1 1 auto;
  color: var(--text);
}

.page-about .role__arrow {
  flex: none;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--lake-deep);
  border-right: 2px solid var(--lake-deep);
  transform: rotate(45deg);
  transition: transform var(--dur-expand) var(--ease-in), border-color var(--dur-micro) var(--ease-in);
}

.page-about .role[open] .role__arrow {
  transform: rotate(135deg);
  border-color: var(--coral);
}

.page-about .role__body {
  padding: 4px 20px 22px 20px;
}

.page-about .role__body p {
  margin: 0 0 12px;
  max-width: 36em;
  color: #2F3B45;
}

.page-about .role__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-about .role__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: #3A4650;
  line-height: 1.75;
}

.page-about .role__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1.5px;
  background: var(--lake);
}

.page-about .team__aside-hint {
  margin: 22px 0 0;
  font-size: 13px;
  color: #5C6870;
  max-width: 32em;
}

.page-about .team__figure {
  margin: 0;
  border-top: 6px solid var(--lake);
}

.page-about .team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-about .team__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: #56636C;
}

.page-about .team__aside {
  background: var(--paper-2);
  padding: 20px 20px 16px;
  border-left: 6px solid var(--lake);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-about .team__aside-cap {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--lake-deep);
  margin: 0 0 12px;
}

.page-about .team__aside-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .aside-link {
  display: block;
  padding: 7px 4px;
  font-size: 14.5px;
  line-height: 1.6;
  text-decoration: none;
  color: var(--text);
  border-bottom: 1px solid rgba(19, 26, 32, 0.12);
  transition: background var(--dur-micro) var(--ease-in), color var(--dur-micro) var(--ease-in);
}

.page-about .aside-link:hover,
.page-about .aside-link:focus-visible {
  background: rgba(242, 209, 75, 0.45);
  color: var(--lake-deep);
}

.page-about .team__aside-body {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: #3A4650;
}

@media (min-width: 960px) {
  .page-about .team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    grid-template-areas:
      "roles figure"
      "roles aside";
    gap: 32px 56px;
    align-items: start;
  }

  .page-about .team__roles {
    grid-area: roles;
  }

  .page-about .team__figure {
    grid-area: figure;
  }

  .page-about .team__aside {
    grid-area: aside;
    margin-top: var(--baseline);
  }
}

/* ---------- 05 属地 ---------- */

.page-about .sec--region {
  position: relative;
  background: var(--moss);
  color: var(--text-inv);
  padding: 0 0 76px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - var(--slant)));
  padding-bottom: 110px;
}

.page-about .contour {
  color: rgba(232, 238, 242, 0.34);
  line-height: 0;
  padding-top: 30px;
}

.page-about .contour svg {
  display: block;
  width: 100%;
  height: 70px;
}

.page-about .region__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: 26px;
}

.page-about .region__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .region__list li {
  display: grid;
  gap: 4px;
  padding-left: 16px;
  border-left: 6px solid rgba(242, 209, 75, 0.72);
}

.page-about .region__k {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lemon);
}

.page-about .region__v {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-inv);
  max-width: 38em;
}

.page-about .region__card {
  background: var(--ink);
  padding: 22px 22px 20px;
  border-left: 6px solid var(--lemon);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-about .region__card-k {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-about .region__card-v {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-inv);
}

.page-about .region__card .btn {
  display: inline-block;
  padding: 10px 18px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background var(--dur-micro) var(--ease-in), color var(--dur-micro) var(--ease-in);
}

.page-about .region__card .btn--onink {
  background: var(--coral);
  color: var(--ink);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.page-about .region__card .btn--onink:hover,
.page-about .region__card .btn--onink:focus-visible {
  background: var(--lemon);
}

@media (min-width: 900px) {
  .page-about .region__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
  }

  .page-about .region__side {
    margin-top: var(--baseline);
  }
}

/* ---------- 06 口径 ---------- */

.page-about .sec--caliber {
  background: var(--paper);
}

.page-about .caliber {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .caliber__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .caliber__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  color: var(--coral);
  padding-top: 4px;
}

.page-about .caliber__item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 22px);
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--text);
}

.page-about .caliber__item p {
  margin: 0;
  max-width: 40em;
  color: #2F3B45;
}

.page-about .caliber__foot {
  margin: 32px 0 0;
  padding: 18px 20px;
  background: var(--paper-2);
  border-left: 6px solid var(--lake);
  font-size: 15px;
  line-height: 1.85;
  color: #2F3B45;
  max-width: 60em;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

/* ---------- 07 接着看 ---------- */

.page-about .sec--next {
  background: var(--ink-2);
  color: var(--text-inv);
  padding: 66px 0 78px;
}

.page-about .sec--next .sec__title {
  color: var(--text-inv);
}

.page-about .sec--next .kicker {
  color: var(--mist);
}

.page-about .next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

.page-about .next__item a {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  text-decoration: none;
  background: rgba(232, 238, 242, 0.05);
  border-left: 6px solid var(--lake);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: background var(--dur-micro) var(--ease-in), border-color var(--dur-micro) var(--ease-in), transform var(--dur-micro) var(--ease-in);
}

.page-about .next__item a:hover,
.page-about .next__item a:focus-visible {
  background: rgba(232, 238, 242, 0.12);
  border-left-color: var(--coral);
  transform: translateX(6px);
}

.page-about .next__k {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-about .next__v {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.2;
  color: var(--text-inv);
}

.page-about .next__d {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-about .next__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 降低动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 120ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 120ms !important;
  }

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

  .page-about .next__item a:hover {
    transform: none;
  }
}

/* ---------- 窄屏收尾 ---------- */

@media (max-width: 600px) {
  .page-about .sec {
    padding: 56px 0;
  }

  .page-about .sec--versions {
    clip-path: polygon(0 0, 100% var(--slant), 100% 100%, 0 100%);
    padding: 60px 0 52px;
  }

  .page-about .sec--region {
    padding-bottom: 86px;
  }

  .page-about .flow {
    padding-left: 16px;
  }

  .page-about .flow__item::before {
    left: -25px;
    width: 14px;
  }

  .page-about .flow__dot {
    margin-left: -22px;
  }

  .page-about .caliber__item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }

  .page-about .caliber__num {
    font-size: 21px;
  }

  .page-about .vex__tag {
    min-width: 3.6em;
  }

  .page-about .about-facts {
    padding: 20px 18px 14px;
  }
}
<<<END>>>