:root {
  --navy-950: #08132a;
  --navy-900: #0d1b38;
  --navy-800: #132a55;
  --blue-600: #2f66d8;
  --blue-500: #4b83f1;
  --blue-100: #e6efff;
  --canvas: #f4f7fb;
  --surface: #ffffff;
  --ink: #15213a;
  --muted: #65738c;
  --line: #d9e2f0;
  --shadow: 0 18px 45px rgb(21 44 85 / 8%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

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

a:hover {
  color: var(--blue-600);
}

:focus-visible {
  outline: 3px solid var(--blue-500);
  outline-offset: 3px;
}

.content-shell {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy-900);
  font-size: 1.05rem;
  font-weight: 750;
  letter-spacing: 0.01em;
}

.brand:hover {
  color: var(--navy-900);
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  color: var(--blue-600);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 24px;
  color: #4c5b76;
  font-size: 0.92rem;
  font-weight: 600;
}

.site-nav a {
  white-space: nowrap;
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  min-height: 500px;
  background:
    radial-gradient(circle at 82% 22%, rgb(82 134 243 / 45%), transparent 0 22%),
    radial-gradient(circle at 18% 112%, rgb(74 122 222 / 44%), transparent 0 38%),
    linear-gradient(124deg, var(--navy-950), var(--navy-800));
  color: #fff;
}

.hero::after {
  position: absolute;
  z-index: -1;
  right: -130px;
  bottom: -230px;
  width: 620px;
  height: 620px;
  border: 1px solid rgb(255 255 255 / 20%);
  border-radius: 50%;
  box-shadow:
    0 0 0 58px rgb(255 255 255 / 4%),
    0 0 0 118px rgb(255 255 255 / 3%);
  content: "";
}

.hero-inner {
  padding-block: 92px 76px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue-500);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.2;
}

.hero .eyebrow {
  color: #9ec0ff;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.22;
}

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  color: #fff;
  font-size: clamp(2.5rem, 6vw, 4.7rem);
  letter-spacing: -0.055em;
}

h2 {
  max-width: 760px;
  margin-bottom: 14px;
  font-size: clamp(1.75rem, 3.6vw, 2.55rem);
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 11px;
  font-size: 1.16rem;
}

.hero-copy {
  max-width: 560px;
  margin-bottom: 20px;
  color: #d8e6ff;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  padding: 7px 13px;
  border: 1px solid rgb(184 211 255 / 42%);
  border-radius: 999px;
  background: rgb(255 255 255 / 10%);
  color: #f3f7ff;
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.4;
}

.status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #92d5a8;
  box-shadow: 0 0 0 4px rgb(146 213 168 / 15%);
}

.hero-note {
  max-width: 700px;
  margin-bottom: 0;
  color: #b7c9e8;
  font-size: 0.94rem;
}

.section {
  padding-block: 102px;
}

.section-heading {
  max-width: 780px;
}

.section-heading > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.capability-card {
  min-height: 224px;
  padding: 29px 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 8px 28px rgb(21 44 85 / 4%);
}

.capability-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.card-index {
  display: block;
  margin-bottom: 25px;
  color: var(--blue-600);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.section-tinted {
  border-block: 1px solid #dfe8f7;
  background: #edf3fd;
}

.progress-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: 76px;
  align-items: start;
}

.progress-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid #cbd9f0;
  border-radius: 18px;
  background: rgb(255 255 255 / 76%);
  box-shadow: var(--shadow);
}

.progress-list li {
  position: relative;
  padding: 23px 26px 23px 48px;
  border-bottom: 1px solid #d9e3f3;
}

.progress-list li:last-child {
  border-bottom: 0;
}

.progress-list li::before {
  position: absolute;
  top: 34px;
  left: 25px;
  width: 10px;
  height: 10px;
  border: 3px solid #edf3fd;
  border-radius: 50%;
  background: var(--blue-600);
  box-shadow: 0 0 0 1px var(--blue-600);
  content: "";
}

.progress-list span,
.progress-list strong,
.progress-list p {
  display: block;
}

.progress-list span {
  margin-bottom: 3px;
  color: var(--blue-600);
  font-size: 0.78rem;
  font-weight: 750;
}

.progress-list strong {
  color: var(--ink);
  line-height: 1.45;
}

.progress-list p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.principle-list {
  display: grid;
  gap: 0;
  margin: 42px 0 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  list-style: none;
}

.principle-list li {
  display: grid;
  grid-template-columns: minmax(210px, 0.85fr) minmax(0, 1.5fr);
  gap: 28px;
  padding: 24px 30px;
  border-bottom: 1px solid var(--line);
}

.principle-list li:last-child {
  border-bottom: 0;
}

.principle-list strong {
  color: var(--navy-900);
}

.principle-list span {
  color: var(--muted);
}

.privacy-main {
  padding-block: 78px 100px;
}

.privacy-hero {
  max-width: 800px;
  margin-bottom: 45px;
}

.privacy-hero h1 {
  color: var(--ink);
  font-size: clamp(2.3rem, 5vw, 4rem);
}

.privacy-hero > p:last-child {
  max-width: 700px;
  margin-bottom: 0;
  color: var(--muted);
}

.privacy-section {
  padding: 31px 33px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 8px 28px rgb(21 44 85 / 3%);
}

.privacy-section + .privacy-section {
  margin-top: 16px;
}

.privacy-section h2 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
}

.privacy-section p {
  max-width: 850px;
  margin-bottom: 0;
  color: var(--muted);
}

.contact-section {
  border-color: #c9d9f4;
  background: linear-gradient(135deg, #f8fbff, #eaf2ff);
}

.contact-email {
  display: inline-block;
  margin-top: 13px;
  color: var(--blue-600);
  font-weight: 750;
}

.company-name {
  margin-top: 13px !important;
  color: var(--ink) !important;
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid rgb(255 255 255 / 10%);
  background: var(--navy-950);
  color: #c2cfe3;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding-block: 34px;
}

.footer-brand {
  color: #fff;
}

.footer-brand:hover {
  color: #fff;
}

.footer-brand .brand-mark {
  color: #6592ed;
}

.footer-inner p {
  margin: 8px 0 0;
  font-size: 0.84rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #fff;
}

@media (max-width: 720px) {
  .content-shell {
    width: min(100% - 36px, 1120px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 19px;
  }

  .site-nav {
    justify-content: flex-start;
    gap: 7px 18px;
    font-size: 0.86rem;
  }

  .hero {
    min-height: 455px;
  }

  .hero-inner {
    padding-block: 72px 62px;
  }

  h1 {
    letter-spacing: -0.045em;
  }

  .section {
    padding-block: 68px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
    margin-top: 31px;
  }

  .capability-card {
    min-height: auto;
    padding: 25px;
  }

  .progress-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .principle-list {
    margin-top: 31px;
  }

  .principle-list li {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px;
  }

  .privacy-main {
    padding-block: 54px 68px;
  }

  .privacy-section {
    padding: 25px 22px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 30px;
  }

  .footer-links {
    justify-content: flex-start;
  }
}