:root {
  color-scheme: light;
  --ink: #06183e;
  --muted: #66789a;
  --line: #d7e5ff;
  --blue: #2f75ff;
  --cyan: #27c8df;
  --paper: #f7fbff;
  --white: #ffffff;
  --gold: #f2b84b;
  --shadow: 0 28px 90px rgba(35, 90, 190, 0.22);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(115deg, rgba(39, 200, 223, 0.13) 0%, transparent 32%),
    linear-gradient(180deg, #eef6ff 0%, #ffffff 48%, #edf7ff 100%);
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 4vw, 64px);
  background: rgba(247, 251, 255, 0.76);
  border-bottom: 1px solid rgba(215, 229, 255, 0.76);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background-image: url("./assets/logo.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 126px 126px;
  filter: drop-shadow(0 12px 24px rgba(45, 117, 255, 0.18));
}

.brand-name,
.brand-subtitle {
  display: block;
  line-height: 1.05;
}

.brand-name {
  font-size: 18px;
  font-weight: 950;
  letter-spacing: 0;
}

.brand-subtitle {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.5vw, 30px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--blue);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 0.72fr);
  gap: clamp(26px, 5vw, 70px);
  align-items: center;
  min-height: 92svh;
  overflow: hidden;
  padding: 124px clamp(20px, 6vw, 88px) 70px;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(247, 251, 255, 0.98) 0%, rgba(247, 251, 255, 0.88) 45%, rgba(247, 251, 255, 0.48) 100%),
    linear-gradient(180deg, transparent 70%, #ffffff 100%);
}

.hero::after {
  position: absolute;
  right: -12vw;
  bottom: -18vh;
  width: min(70vw, 840px);
  height: min(70vw, 840px);
  content: "";
  background: linear-gradient(140deg, rgba(47, 117, 255, 0.16), rgba(39, 200, 223, 0.08));
  transform: rotate(-10deg);
  filter: blur(42px);
}

.hero-inner,
.hero-poster {
  position: relative;
  z-index: 1;
}

.hero-inner {
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  max-width: 760px;
  font-size: clamp(58px, 8.5vw, 118px);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-copy {
  margin-bottom: 12px;
  color: transparent;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  background-clip: text;
  font-size: clamp(38px, 5.5vw, 78px);
  font-weight: 950;
  line-height: 1.02;
}

.hero-cn {
  max-width: 640px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 850;
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 950;
  text-decoration: none;
}

.button.primary {
  color: var(--white);
  background: var(--ink);
  box-shadow: 0 14px 34px rgba(7, 24, 61, 0.22);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
}

.hero-poster,
.poster-frame {
  margin: 0;
}

.hero-poster {
  justify-self: end;
  width: min(39vw, 500px);
  min-width: 330px;
  transform: rotate(1.8deg);
}

.hero-poster img,
.poster-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-poster img {
  transform: translateY(10px);
}

.section-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.mission-section {
  padding: clamp(66px, 9vw, 118px) 0;
  background: #ffffff;
}

.mission-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(34px, 6vw, 76px);
  align-items: start;
}

.mission-copy h2,
.poster-section h2 {
  margin-bottom: 18px;
  font-size: clamp(40px, 5.8vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
}

.mission-copy p {
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 850;
  line-height: 1.72;
}

.values {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
}

.values li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 6px 20px;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.values li:last-child {
  border-bottom: 1px solid var(--line);
}

.values span {
  grid-row: span 2;
  color: transparent;
  background: linear-gradient(145deg, var(--cyan), var(--blue));
  background-clip: text;
  font-size: 48px;
  font-weight: 950;
  line-height: 1;
}

.values strong {
  font-size: 24px;
}

.values p {
  margin: 0;
  color: var(--muted);
  font-weight: 850;
}

.poster-section {
  padding: clamp(68px, 9vw, 126px) 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.44), rgba(255, 255, 255, 0.86)),
    #eef7ff;
}

.poster-frame {
  width: min(620px, 100%);
  margin-top: 30px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  padding: 28px clamp(20px, 4vw, 64px);
  color: #dce7ff;
  background: var(--ink);
}

.site-footer a {
  color: inherit;
  font-weight: 850;
  text-decoration: none;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 104px;
  }

  .hero-poster {
    justify-self: start;
    width: min(520px, 100%);
    min-width: 0;
  }
}

@media (max-width: 820px) {
  .site-header {
    position: sticky;
  }

  .mission-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    gap: 12px;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
    background-size: 108px 108px;
  }

  .brand-name {
    font-size: 15px;
  }

  .brand-subtitle {
    font-size: 12px;
  }

  .nav-links a:nth-child(1),
  .nav-links a:nth-child(2) {
    display: none;
  }

  h1 {
    font-size: clamp(48px, 15vw, 76px);
  }

  .hero-copy {
    font-size: clamp(34px, 11vw, 56px);
  }

  .button {
    width: 100%;
  }

  .values li {
    grid-template-columns: 54px 1fr;
  }

  .values span {
    font-size: 38px;
  }
}