/* ===== 品牌档案 · page-about ===== */

.page-about {
  --about-glow: rgba(155, 92, 255, .34);
  --about-text: rgba(244, 241, 233, .78);
  position: relative;
  color: var(--ink);
  background: var(--bg);
}

.page-about .breadcrumbs {
  padding-block: 22px 6px;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 26px 0 58px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -240px;
  right: -160px;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle at 50% 50%, var(--about-glow), transparent 62%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 5px;
  background-image: repeating-linear-gradient(90deg, var(--cyan) 0 1px, transparent 1px 26px);
  opacity: .55;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: 36px;
  align-items: start;
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  line-height: 1.05;
  color: var(--ink);
  text-shadow: 0 0 46px rgba(155, 92, 255, .3);
}

.page-about .about-hero__lede {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--about-text);
}

/* 速览面板 */

.page-about .about-plate {
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(155, 92, 255, .16), rgba(25, 28, 48, .92) 44%),
    var(--panel);
}

.page-about .about-plate__cap {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-about .about-plate__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-about .about-plate__k {
  font-size: 14px;
  color: var(--muted);
}

.page-about .about-plate__v {
  font-size: 17px;
  color: var(--cyan);
}

.page-about .about-plate__cta {
  width: 100%;
  margin-top: 16px;
}

/* ---------- 通用章节 ---------- */

.page-about .about-section {
  position: relative;
  padding: 60px 0;
  border-top: 1px solid var(--line);
}

.page-about .about-section:first-of-type {
  border-top: 0;
}

.page-about .about-head {
  max-width: 74ch;
}

.page-about .about-head .headline {
  margin: 14px 0 0;
}

.page-about .about-head__lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--about-text);
}

.page-about .about-head__lede a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-flow {
  margin-top: 26px;
  max-width: 72ch;
}

.page-about .about-flow p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.82;
  color: rgba(244, 241, 233, .82);
}

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

/* ---------- 服务范围：三栏场景轨 ---------- */

.page-about .scene-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 78%;
  gap: 16px;
  margin-top: 34px;
  padding-bottom: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-about .scene-card {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(53, 230, 224, .07), rgba(25, 28, 48, .74) 42%),
    var(--panel);
  scroll-snap-align: start;
}

.page-about .scene-card__scale {
  display: block;
  height: 4px;
  margin: -4px 0 18px;
  background-image: repeating-linear-gradient(90deg, var(--cyan) 0 2px, transparent 2px 12px);
  opacity: .85;
}

.page-about .scene-card .headline--md {
  margin: 10px 0 12px;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.32;
}

.page-about .scene-card p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.76;
  color: rgba(244, 241, 233, .76);
}

.page-about .scene-card__meta {
  margin: 0;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--cyan);
}

/* ---------- 换机与重装 ---------- */

.page-about .about-figure {
  margin: 32px 0 0;
}

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

.page-about .figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.page-about .about-steps {
  display: grid;
  gap: 22px;
  margin-top: 36px;
}

.page-about .about-step {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-about .about-step__n {
  display: block;
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--peach);
}

.page-about .about-step__t {
  margin: 10px 0 10px;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
}

.page-about .about-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(244, 241, 233, .75);
}

/* ---------- 团队分工 ---------- */

.page-about .about-split {
  display: grid;
  gap: 36px;
  align-items: start;
}

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

.page-about .role-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .role {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

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

.page-about .role__k {
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--grape);
}

.page-about .role p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 241, 233, .8);
}

.page-about .role a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 赛季节奏 ---------- */

.page-about .cadence-track {
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .cadence-item {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 22px 0 22px 28px;
  border-top: 1px solid var(--line);
}

.page-about .cadence-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(53, 230, 224, .8);
}

.page-about .cadence-item::after {
  content: "";
  position: absolute;
  left: 3.5px;
  top: 38px;
  bottom: -1px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), transparent);
}

.page-about .cadence-item__scale {
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-about .cadence-item .headline--md {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.34;
}

.page-about .cadence-item p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 241, 233, .78);
}

/* ---------- 栏目体系 ---------- */

.page-about .col-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}

.page-about .col-tile {
  padding: 22px 20px 24px;
  background: var(--bg);
  transition: background .25s ease;
}

.page-about .col-tile:hover {
  background: #151834;
}

.page-about .col-tile__n {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--grape);
}

.page-about .col-tile__t {
  margin: 10px 0 8px;
  font-size: 18px;
  line-height: 1.36;
  color: var(--ink);
}

.page-about .col-tile p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(244, 241, 233, .72);
}

.page-about .status-row {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.page-about .status-card {
  padding: 20px 22px;
  border-left: 3px solid var(--line);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(25, 28, 48, .58);
}

.page-about .status-card--ok {
  border-left-color: var(--lime);
}

.page-about .status-card--mid {
  border-left-color: var(--cyan);
}

.page-about .status-card--wait {
  border-left-color: var(--coral);
}

.page-about .status-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.74;
  color: rgba(244, 241, 233, .75);
}

/* ---------- 内容合作 ---------- */

.page-about .partner-grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

.page-about .partner {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-about .partner:nth-child(1) {
  background: linear-gradient(152deg, rgba(255, 138, 61, .12), rgba(25, 28, 48, .74) 48%), var(--panel);
}

.page-about .partner:nth-child(2) {
  background: linear-gradient(152deg, rgba(155, 92, 255, .16), rgba(25, 28, 48, .74) 48%), var(--panel);
}

.page-about .partner:nth-child(3) {
  background: linear-gradient(152deg, rgba(53, 230, 224, .12), rgba(25, 28, 48, .74) 48%), var(--panel);
}

.page-about .partner__k {
  display: inline-block;
  padding: 5px 11px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(15, 16, 32, .62);
}

.page-about .partner h3 {
  margin: 16px 0 10px;
  font-size: 19px;
  line-height: 1.42;
  color: var(--ink);
}

.page-about .partner p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: rgba(244, 241, 233, .76);
}

.page-about .partner__contact {
  margin: 26px 0 0;
  font-size: 16px;
  line-height: 1.76;
  color: rgba(244, 241, 233, .8);
}

.page-about .partner__contact a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 视觉识别 ---------- */

.page-about .identity {
  margin-top: 34px;
}

.page-about .identity__figure {
  margin: 0 0 26px;
}

.page-about .swatch-wall {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .swatch {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  min-height: 116px;
  padding: 14px;
  border-radius: var(--radius);
  color: #0F1020;
  outline-offset: 3px;
}

.page-about .swatch:focus-visible {
  outline: 2px solid var(--cyan);
}

.page-about .swatch__n {
  font-size: 12.5px;
  letter-spacing: .04em;
}

.page-about .swatch__u {
  font-size: 12px;
  font-weight: 600;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .22s ease, transform .22s ease;
}

.page-about .swatch:hover .swatch__u,
.page-about .swatch:focus-visible .swatch__u,
.page-about .swatch:focus-within .swatch__u {
  opacity: 1;
  transform: none;
}

.page-about .swatch--peach {
  background: var(--peach);
}

.page-about .swatch--lime {
  background: var(--lime);
}

.page-about .swatch--grape {
  background: var(--grape);
  color: var(--ink);
}

.page-about .swatch--cyan {
  background: var(--cyan);
}

.page-about .swatch--coral {
  background: var(--coral);
  color: var(--ink);
}

/* ---------- 页尾行动区 ---------- */

.page-about .about-end {
  padding: 62px 0 82px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(120% 150% at 10% 0%, rgba(42, 17, 64, .9), transparent 62%),
    var(--bg);
}

.page-about .about-end__inner {
  max-width: 720px;
}

.page-about .about-end__inner .headline {
  margin: 0 0 14px;
}

.page-about .about-end__inner p {
  margin: 0 0 26px;
  font-size: 17px;
  line-height: 1.78;
  color: rgba(244, 241, 233, .8);
}

.page-about .about-end__inner p a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-end__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .breadcrumbs {
    padding-block: 26px 8px;
  }

  .page-about .role {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-about .col-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .cadence-item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
    padding: 24px 0 24px 30px;
  }

  .page-about .cadence-item::before {
    top: 30px;
  }

  .page-about .cadence-item::after {
    top: 40px;
  }

  .page-about .about-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

@media (min-width: 860px) {
  .page-about .about-section {
    padding: 86px 0;
  }

  .page-about .about-hero {
    padding: 34px 0 76px;
  }

  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-about .status-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-about .scene-rail {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
    padding-bottom: 0;
    overflow: visible;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 1fr);
    gap: 62px;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, .85fr);
    gap: 64px;
  }
}

@media (min-width: 1000px) {
  .page-about .col-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .swatch-wall {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    align-items: end;
  }

  .page-about .swatch {
    min-height: 118px;
  }

  .page-about .swatch:nth-child(1) {
    min-height: 152px;
  }

  .page-about .swatch:nth-child(2) {
    min-height: 120px;
  }

  .page-about .swatch:nth-child(3) {
    min-height: 170px;
  }

  .page-about .swatch:nth-child(4) {
    min-height: 134px;
  }

  .page-about .swatch:nth-child(5) {
    min-height: 158px;
  }
}

@media (hover: none) {
  .page-about .swatch__u {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .swatch__u,
  .page-about .col-tile {
    transition: none;
  }
}