/* ============================================
   About page styles
   ============================================ */

.ab-hero {
  padding: clamp(64px, 8vw, 110px) 0 clamp(40px, 5vw, 60px);
  position: relative;
  overflow: hidden;
}
.ab-hero::after {
  content: '关于';
  position: absolute;
  bottom: -120px; right: -40px;
  font-family: var(--font-serif);
  font-size: 320px;
  color: oklch(0.92 0.025 240 / 0.5);
  font-weight: 700;
  pointer-events: none;
  z-index: 0;
}
.ab-hero .container > * { position: relative; z-index: 1; }
.ab-hero .h-display { margin: 24px 0 20px; }
.ab-lede { max-width: 60ch; }

.ab-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.ab-stat-num {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent);
}
.ab-stat-num .unit { font-family: var(--font-sans); font-size: 18px; font-weight: 500; color: var(--fg-2); margin-left: 2px; }
.ab-stat-lab { font-size: 13px; color: var(--fg-2); margin-top: 8px; }

@media (max-width: 800px) { .ab-stats { grid-template-columns: 1fr 1fr; gap: 16px; } }

/* Mission */
.ab-mission { background: white; }
.mission-grid { display: grid; grid-template-columns: 1fr 2.5fr; gap: 60px; align-items: start; }
.mission-quote {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 32px);
  line-height: 1.55;
  color: var(--fg);
  border-left: 3px solid var(--accent);
  padding-left: 28px;
  margin: 32px 0 16px;
  font-weight: 500;
}
.mission-by { font-size: 14px; color: var(--fg-3); padding-left: 31px; }

@media (max-width: 800px) { .mission-grid { grid-template-columns: 1fr; gap: 24px; } }

/* Why Now Bold — clock visual */
.why-now-bold { background: var(--bg); }
.windownow {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 60px;
  align-items: center;
}
.wn-clock {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
}
.wn-clock-face {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 50%;
  background: radial-gradient(circle, oklch(0.97 0.018 235), oklch(0.93 0.025 245));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  display: grid;
  place-items: center;
}
.wn-clock-ring {
  position: absolute;
  inset: 14px;
  border: 2px dashed var(--accent-soft);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}
.wn-clock-ring.r2 { inset: 36px; border-style: solid; border-color: oklch(0.85 0.06 240); border-width: 1px; animation-duration: 60s; animation-direction: reverse; }
.wn-clock-ring.r3 { inset: 60px; border: 1px solid oklch(0.55 0.12 245 / 0.3); animation-duration: 90s; }
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }

.wn-num {
  font-family: var(--font-serif);
  font-size: 110px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.04em;
  z-index: 2;
  text-shadow: 0 0 40px oklch(0.58 0.20 250 / 0.3);
}
.wn-num-lab {
  position: absolute;
  bottom: 28%; left: 0; right: 0;
  text-align: center;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-2);
  z-index: 2;
}
.wn-tick {
  position: absolute;
  top: 50%; left: 50%;
  width: 2px;
  height: 8px;
  background: var(--fg-3);
  transform-origin: 1px calc(-50% + 14px);
  transform: translate(-50%, -50%) rotate(var(--a)) translateY(calc(-50% + 14px));
  border-radius: 1px;
}
.wn-tick:nth-child(odd) { height: 12px; background: var(--accent); }
.wn-pointer {
  position: absolute;
  top: 50%; left: 50%;
  width: 3px;
  height: 38%;
  background: linear-gradient(to top, var(--accent), transparent);
  transform-origin: bottom center;
  transform: translate(-50%, -100%) rotate(0deg);
  animation: tick 18s linear infinite;
  border-radius: 2px;
}
@keyframes tick { from { transform: translate(-50%, -100%) rotate(0deg); } to { transform: translate(-50%, -100%) rotate(360deg); } }

.wn-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.wn-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  position: relative;
  transition: all 0.2s;
}
.wn-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent-soft); }
.wn-num-tag {
  position: absolute;
  top: 16px; right: 20px;
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--accent-soft);
  line-height: 1;
}
.wn-tag {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 8px;
}
.wn-card h3 { font-size: 17px; margin: 0 0 8px; font-weight: 700; }
.wn-card p { font-size: 13px; color: var(--fg-2); line-height: 1.6; margin: 0; }

@media (max-width: 1000px) {
  .windownow { grid-template-columns: 1fr; gap: 40px; }
  .wn-clock { max-width: 320px; margin: 0 auto; }
}
@media (max-width: 600px) { .wn-cards { grid-template-columns: 1fr; } }

/* Advantages */
.ab-advantages { background: white; }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.adv-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
  transition: all 0.2s;
}
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent-soft); }
.adv-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.adv-card h3 { font-size: 22px; margin: 0; font-weight: 700; letter-spacing: -0.01em; }
.adv-card p { font-size: 14px; color: var(--fg-2); line-height: 1.7; margin: 0; }
.adv-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-3);
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  margin-top: auto;
}
@media (max-width: 800px) { .adv-grid { grid-template-columns: 1fr; } }

/* Founder + Team */
.ab-team { background: var(--bg); }
.founder-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 32px;
  align-items: center;
  margin-bottom: 60px;
  box-shadow: var(--shadow-sm);
}
.founder-photo {
  aspect-ratio: 1;
  border-radius: var(--r-lg);
  background:
    repeating-linear-gradient(135deg,
      oklch(0.93 0.025 245) 0 12px,
      oklch(0.95 0.02 240) 12px 24px);
  display: grid;
  place-items: center;
}
.ph-placeholder {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--fg-3);
  background: white;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
}

/* Founder promises card — replaces photo placeholder */
.founder-promises {
  aspect-ratio: auto;
  background: var(--bg-ink);
  color: var(--fg-on-ink);
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  gap: 20px;
  position: relative;
  overflow: hidden;
}
.founder-promises::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, oklch(0.58 0.20 250 / 0.35), transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}
.fp-eyebrow {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent-glow);
  font-weight: 600;
  position: relative;
  z-index: 1;
}
.fp-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.fp-item {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed oklch(0.4 0.04 250);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
}
.fp-item:last-child { border-bottom: none; }
.fp-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: oklch(0.7 0.02 240);
  font-weight: 700;
  letter-spacing: 0.06em;
  flex-shrink: 0;
  min-width: 22px;
}
.fp-text { flex: 1; }
.fp-highlight .fp-text {
  color: var(--accent-glow);
  font-weight: 700;
  font-size: 17px;
  position: relative;
}
.fp-highlight .fp-num { color: var(--accent-glow); }
.founder-tag {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 700;
}
.founder-name { font-family: var(--font-serif); font-size: 36px; margin: 8px 0 4px; font-weight: 700; }
.founder-role { font-size: 14px; color: var(--fg-2); margin-bottom: 16px; }
.founder-bio { font-size: 15px; color: var(--fg); line-height: 1.7; margin: 0 0 20px; }
.founder-stats { display: flex; gap: 32px; padding-top: 20px; border-top: 1px solid var(--line); }
.founder-stats > div { display: flex; flex-direction: column; }
.fs-num { font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: var(--accent); }
.fs-lab { font-size: 12px; color: var(--fg-3); }

@media (max-width: 800px) { .founder-card { grid-template-columns: 1fr; gap: 24px; } }

.team-head {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--fg-3);
  text-transform: uppercase;
  font-weight: 700;
  margin: 0 0 20px;
}
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.member {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
  text-align: center;
  transition: all 0.2s;
}
.member:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.m-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  margin: 0 auto 12px;
  color: white;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  box-shadow: 0 8px 24px oklch(0.58 0.20 250 / 0.25);
}
.m-name { font-weight: 700; font-size: 16px; }
.m-role { font-size: 12px; color: var(--fg-3); margin: 4px 0 12px; }
.m-tags { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; }
.m-tags span {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  padding: 3px 8px;
  border-radius: var(--r-pill);
  font-weight: 600;
}
@media (max-width: 800px) { .team-grid { grid-template-columns: 1fr 1fr; } }

/* Roadmap */
.ab-roadmap { background: white; }
.roadmap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.roadmap::before {
  content: '';
  position: absolute;
  top: 76px; left: 0; right: 0;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--line-2) 0 8px, transparent 8px 14px);
  z-index: 0;
}
.rm-item {
  position: relative;
  z-index: 1;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.rm-item.active { background: var(--bg-ink); color: var(--fg-on-ink); border-color: var(--bg-ink); box-shadow: var(--shadow-lg); }
.rm-period { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--fg-3); }
.rm-item.active .rm-period { color: oklch(0.78 0.012 235); }
.rm-line { height: 16px; position: relative; }
.rm-dot {
  position: absolute; left: 0; top: 4px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent);
}
.rm-item.active .rm-dot { background: var(--accent); border-color: white; box-shadow: 0 0 0 6px oklch(0.58 0.20 250 / 0.3); }
.rm-num {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.rm-item.active .rm-num { color: var(--accent-glow); }
.rm-lab { font-size: 13px; font-weight: 600; }
.rm-item p { font-size: 12px; color: var(--fg-2); line-height: 1.6; margin: 0; }
.rm-item.active p { color: oklch(0.85 0.01 235); }
@media (max-width: 800px) {
  .roadmap { grid-template-columns: 1fr; }
  .roadmap::before { display: none; }
}