:root {
  --ink: #152536;
  --ink-soft: #3a4f63;
  --forest: #2a6b5a;
  --forest-deep: #1f5346;
  --sky: #d7e4ec;
  --mist: #e8f0ec;
  --paper: #f3f7f5;
  --line: rgba(21, 37, 54, 0.12);
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(21, 37, 54, 0.18);
  --display: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--body);
  font-weight: 400;
  line-height: 1.7;
  background:
    radial-gradient(1200px 700px at 12% -10%, #cfe3d8 0%, transparent 55%),
    radial-gradient(900px 600px at 100% 0%, #c5d8e8 0%, transparent 50%),
    linear-gradient(165deg, var(--mist) 0%, var(--paper) 48%, var(--sky) 100%);
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.25rem, 4vw, 3rem);
  background: linear-gradient(
    to bottom,
    rgba(243, 247, 245, 0.88),
    rgba(243, 247, 245, 0)
  );
  backdrop-filter: blur(6px);
}

.logo {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--forest-deep);
  border-color: var(--forest);
  outline: none;
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: stretch;
}

.hero-media {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: #1a2a38;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
  transform: scale(1.04);
  animation: portrait-in 1.6s var(--ease) both;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 55%, rgba(232, 240, 236, 0.35) 100%),
    linear-gradient(180deg, rgba(21, 37, 54, 0.15) 0%, transparent 28%);
  pointer-events: none;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(5.5rem, 12vh, 8rem) clamp(1.5rem, 5vw, 4.5rem)
    clamp(3rem, 8vh, 5rem);
}

.hero-kicker {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  color: var(--forest-deep);
  font-weight: 500;
}

.hero-name {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.4rem, 8vw, 6.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.hero-lead {
  margin: 1.4rem 0 0;
  max-width: 28rem;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  color: var(--ink-soft);
  font-weight: 300;
}

.hero-actions {
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--forest);
  background: var(--forest);
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  background: transparent;
  color: var(--forest-deep);
  outline: none;
  transform: translateY(-1px);
}

.about {
  padding: clamp(4.5rem, 10vh, 7rem) clamp(1.5rem, 5vw, 4.5rem);
  border-top: 1px solid var(--line);
}

.about-inner {
  max-width: 44rem;
  margin: 0 auto;
}

.section-label {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--forest);
  font-weight: 500;
}

.about-title {
  margin: 0 0 1.5rem;
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.25;
}

.about-body p {
  margin: 0 0 1.1rem;
  font-size: 1.05rem;
  color: var(--ink-soft);
  font-weight: 300;
}

.about-body strong {
  color: var(--ink);
  font-weight: 600;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 2.5rem 0 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.facts dt {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--forest);
  font-weight: 500;
}

.facts dd {
  margin: 0;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.site-footer {
  padding: 1.75rem clamp(1.5rem, 5vw, 4.5rem) 2.25rem;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes portrait-in {
  from {
    opacity: 0.55;
    transform: scale(1.1);
  }
  to {
    opacity: 1;
    transform: scale(1.04);
  }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-media {
    min-height: 62svh;
    max-height: 72svh;
  }

  .hero-veil {
    background: linear-gradient(
      180deg,
      transparent 40%,
      rgba(243, 247, 245, 0.92) 100%
    );
  }

  .hero-copy {
    padding-top: 1.5rem;
    margin-top: -2.5rem;
    position: relative;
    z-index: 2;
  }

  .facts {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-media img,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}