/* ===== 品牌概况页（page-about） ===== */

.page-about .crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 26px 0 0;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ink-mute);
}

.page-about .crumbs__item {
  color: var(--ink-soft);
}

.page-about a.crumbs__item {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

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

.page-about .crumbs__item[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}

.page-about .crumbs__sep {
  color: rgba(10, 31, 22, .3);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  margin-top: 20px;
  padding: 46px 0 58px;
  background:
    radial-gradient(90% 130% at 6% 0%, rgba(19, 112, 73, .95) 0%, rgba(6, 42, 30, .96) 48%, var(--green-950) 100%);
  color: var(--cream);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -20%;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 63, 143, .22), transparent 64%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--neon) 52%, var(--magenta));
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}

.page-about .about-hero .h-display {
  margin: 12px 0 16px;
  font-size: clamp(32px, 5.8vw, 58px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-about .about-hero__lede {
  max-width: 54ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(244, 239, 227, .84);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

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

.page-about .about-hero__figure .figure__frame {
  min-height: 180px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(226, 180, 90, .3);
  background: linear-gradient(150deg, var(--green-800), var(--green-950));
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, .95);
}

.page-about .about-hero__figure .figure__media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .about-hero__figure .figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: rgba(244, 239, 227, .58);
}

/* ---------- 通用标题与分区节奏 ---------- */

.page-about .section {
  padding-block: 62px;
}

.page-about h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-about h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.35;
  color: var(--ink);
}

/* ---------- 品牌定位 ---------- */

.page-about .about-intro__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-intro__body p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-ledger {
  padding: 26px 24px 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--green-800) 0%, var(--green-950) 100%);
  border: 1px solid rgba(226, 180, 90, .28);
  color: var(--cream);
  box-shadow: 0 26px 54px -40px rgba(4, 26, 19, .9);
}

.page-about .about-ledger__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .24em;
  color: var(--gold);
}

.page-about .about-ledger__list {
  margin: 0;
  padding: 0;
}

.page-about .about-ledger__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(226, 180, 90, .24);
}

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

.page-about .about-ledger__row dt {
  font-size: 13px;
  color: rgba(244, 239, 227, .64);
}

.page-about .about-ledger__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  text-align: right;
  color: var(--gold-2);
}

/* ---------- 三条服务主线 ---------- */

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

.page-about .about-lines__head {
  max-width: 700px;
  margin-bottom: 36px;
}

.page-about .about-lines__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-about .about-lines__grid {
  display: grid;
  gap: 22px;
}

.page-about .about-line {
  position: relative;
  padding: 30px 26px 32px;
  border-radius: var(--radius-lg);
  background: var(--cream);
  border: 1px solid var(--line);
  box-shadow: 0 22px 46px -36px rgba(4, 26, 19, .6);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.page-about .about-line::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--gold), var(--neon) 55%, var(--magenta));
}

.page-about .about-line:hover,
.page-about .about-line:focus-within {
  transform: translateY(-4px);
  border-color: rgba(226, 180, 90, .55);
  box-shadow: 0 32px 62px -42px rgba(4, 26, 19, .75);
}

.page-about .about-line__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .22em;
  color: var(--gold-deep);
}

.page-about .about-line p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 服务范围 ---------- */

.page-about .about-reach__grid {
  display: grid;
  gap: 34px;
}

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

.page-about .about-reach__figure .figure__frame {
  min-height: 200px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: linear-gradient(140deg, var(--green-700), var(--green-950));
  box-shadow: 0 34px 70px -48px rgba(4, 26, 19, .85);
}

.page-about .about-reach__figure .figure__media {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-reach__figure .figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--ink-mute);
}

.page-about .about-reach__body p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

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

.page-about .about-reach__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-about .about-reach__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon), var(--magenta));
}

/* ---------- 开始使用 ---------- */

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

.page-about .about-start__head {
  max-width: 640px;
  margin-bottom: 34px;
}

.page-about .about-start__grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-about .about-step {
  padding: 26px 24px 28px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
}

.page-about .about-step__num {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold-deep);
}

.page-about .about-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
  word-break: break-word;
}

/* ---------- 收尾引导 ---------- */

.page-about .about-cta__panel {
  position: relative;
  padding: 46px 28px 44px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background:
    radial-gradient(120% 150% at 100% 0%, var(--green-700) 0%, var(--green-900) 48%, var(--green-950) 100%);
  color: var(--cream);
}

.page-about .about-cta__panel::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -130px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 240, 198, .26), transparent 66%);
  pointer-events: none;
}

.page-about .about-cta__copy {
  position: relative;
  z-index: 1;
  max-width: 560px;
}

.page-about .about-cta h2 {
  color: var(--cream);
}

.page-about .about-cta__copy p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(244, 239, 227, .8);
}

.page-about .about-cta__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-about .about-lines__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

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

@media (min-width: 900px) {
  .page-about .section {
    padding-block: 88px;
  }

  .page-about .about-hero {
    margin-top: 26px;
    padding: 72px 0 92px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
    gap: 56px;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 52px;
  }

  .page-about .about-cta__panel {
    padding: 58px 52px 56px;
  }
}

@media (min-width: 960px) {
  .page-about .about-intro__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(262px, .92fr);
    align-items: start;
    gap: 52px;
  }
}

@media (max-width: 420px) {
  .page-about .about-hero__actions .btn,
  .page-about .about-cta__links .btn {
    width: 100%;
    justify-content: center;
  }
}