@charset "utf-8";
/* about.css · 关于页内容和布局 */

.about-hero {
  position: relative;
  overflow: hidden;
  overflow: clip;
  padding-block-start: clamp(112px, 16vh, 176px);
  padding-block-end: clamp(56px, 8vw, 96px);
}

.about-hero__inner {
  position: relative;
  z-index: 1;
}

.about-hero__kicker {
  color: var(--fg-2);
}

.about-hero__title {
  margin-block-start: var(--s-4);
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.about-hero__title .line {
  display: block;
  overflow: hidden;
  padding-block-end: 0.1em;
  margin-block-end: -0.1em;
}

.about-hero__title .line:nth-child(2) {
  padding-inline-start: 0.12em;
}

.about-hero__title .line__i {
  display: block;
  will-change: translate;
}

.about-hero__lede {
  margin-block-start: var(--s-5);
  max-width: 32em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
  color: var(--fg-2);
}

.about-hero__mark {
  position: absolute;
  inset-inline-start: -0.06em;
  inset-block-end: -0.16em;
  z-index: 0;
  font-size: clamp(88px, 14vw, 240px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.05em;
  white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  pointer-events: none;
  user-select: none;
}

.js .about-hero__title .line__i {
  translate: 0 110%;
  transition: translate 0.7s var(--ease);
}

.js .about-hero__title .line:nth-child(1) .line__i {
  transition-delay: 40ms;
}

.js .about-hero__title .line:nth-child(2) .line__i {
  transition-delay: 120ms;
}

.js .is-loaded .about-hero__title .line__i {
  translate: 0 0;
}

.js .about-hero__kicker,
.js .about-hero__lede {
  opacity: 0;
  translate: 0 12px;
  transition:
    opacity 0.5s var(--ease),
    translate 0.5s var(--ease);
}

.js .about-hero__lede {
  transition-delay: 230ms;
}

.js .is-loaded .about-hero__kicker,
.js .is-loaded .about-hero__lede {
  opacity: 1;
  translate: 0 0;
}

.is-settled .about-hero__title .line__i,
.is-settled .about-hero__kicker,
.is-settled .about-hero__lede {
  opacity: 1 !important;
  translate: none !important;
  transition: none !important;
}

.about-section {
  position: relative;
  z-index: 1;
  padding-block: clamp(48px, 6vw, 80px);
}

.about-section + .about-section {
  border-block-start: 1px solid var(--line-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
}

.about-grid__kicker {
  padding-block-start: 0.55em;
  color: var(--fg-2);
}

.about-grid__body {
  max-width: 46em;
}

.about-grid__title {
  font-size: var(--fs-h2);
}

.about-grid__body p {
  margin-block-start: var(--s-4);
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.85;
  color: var(--fg-2);
}

.about-facts {
  margin-block-start: var(--s-6);
  border-block-start: 1px solid var(--line);
}

.about-facts li {
  display: flex;
  align-items: baseline;
  gap: var(--s-4);
  padding-block: var(--s-3);
  border-block-end: 1px solid var(--line-soft);
  font-size: var(--fs-body);
  color: var(--fg);
}

.about-facts .mono {
  min-width: 3.4em;
  color: var(--fg-2);
}

.about-links {
  margin-block-start: var(--s-6);
  border-block-start: 1px solid var(--line);
}

.about-link-row {
  display: flex;
  align-items: baseline;
  gap: var(--s-3) var(--s-5);
  padding-block: var(--s-4);
  border-block-end: 1px solid var(--line-soft);
  transition: padding-inline-start 0.35s var(--ease);
}

.about-link-row:hover,
.about-link-row:focus-visible {
  padding-inline-start: var(--s-4);
}

.about-link-row__name {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--fg);
  transition: color 0.3s var(--ease);
}

.about-link-row:hover .about-link-row__name {
  color: var(--accent);
}

.about-link-row__url {
  color: var(--fg-2);
}

.about-link-row__arrow {
  margin-inline-start: auto;
  color: var(--fg-3);
  transition:
    color 0.3s var(--ease),
    translate 0.3s var(--ease);
}

.about-link-row:hover .about-link-row__arrow,
.about-link-row:focus-visible .about-link-row__arrow {
  color: var(--accent);
  translate: 4px 0;
}

.about-contact {
  margin-block-start: var(--s-5);
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s-3);
  }

  .about-grid__kicker {
    padding-block-start: 0;
  }
}

@media (max-width: 560px) {
  .about-hero__mark {
    font-size: clamp(48px, 14vw, 78px);
  }

  .about-link-row {
    flex-wrap: wrap;
  }

  .about-link-row__url {
    order: 3;
    flex-basis: 100%;
  }
}

@media (max-width: 400px) {
  .about-hero {
    padding-block-start: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .about-hero__title .line__i,
  .js .about-hero__kicker,
  .js .about-hero__lede {
    opacity: 1 !important;
    translate: none !important;
    transition: none !important;
  }

  .about-link-row,
  .about-link-row__arrow {
    transition: none;
  }

  .about-link-row:hover,
  .about-link-row:focus-visible {
    padding-inline-start: 0;
  }

  .about-link-row:hover .about-link-row__arrow,
  .about-link-row:focus-visible .about-link-row__arrow {
    translate: none;
  }
}

body {
  --maxw: 1100px;
}