:root {
  --ink: #071311;
  --muted: #52615e;
  --paper: #f7fbf8;
  --surface: #ffffff;
  --line: #d7e2dc;
  --soft: #ecf5f0;
  --teal: #16b8aa;
  --green: #88d64b;
  --cyan: #61d9ff;
  --gold: #f6b84c;
  --danger: #d56b45;
  --shadow: 0 24px 70px rgba(7, 19, 17, .13);
  --wrap: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: #0a8f83;
}

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

p,
h1,
h2,
h3,
li,
summary,
td,
th {
  overflow-wrap: anywhere;
}

.wrap {
  width: min(calc(100% - 40px), var(--wrap));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -90px;
  z-index: 30;
  padding: 10px 14px;
  color: white;
  background: var(--ink);
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: rgba(7, 19, 17, .9);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 72px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  color: white;
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 950;
  white-space: nowrap;
}

.brand-logo {
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: white;
  object-fit: cover;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .26);
}

.nav-links {
  justify-content: center;
  gap: 6px;
  min-width: 0;
  font-size: 14px;
}

.nav-links a,
.nav-cta {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 9px 12px;
  border-radius: 999px;
  color: rgba(255, 255, 255, .84);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-cta:hover {
  color: white;
  background: rgba(255, 255, 255, .1);
}

.nav-cta {
  border: 1px solid rgba(255, 255, 255, .28);
  font-weight: 850;
}

.hero {
  padding: 60px 0 78px;
  color: white;
  background:
    radial-gradient(circle at 15% 20%, rgba(97, 217, 255, .22), transparent 28%),
    radial-gradient(circle at 82% 14%, rgba(136, 214, 75, .18), transparent 26%),
    linear-gradient(145deg, #06110f 0%, #0d2420 56%, #06110f 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(440px, 1.14fr);
  gap: 42px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.08;
}

h2 {
  font-size: clamp(29px, 3.6vw, 46px);
  line-height: 1.18;
}

h3 {
  font-size: 20px;
  line-height: 1.35;
}

.answer-block {
  margin: 20px 0 0;
  color: inherit;
  font-size: 17px;
}

.hero .answer-block {
  max-width: 650px;
  color: rgba(255, 255, 255, .82);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 900;
  text-align: center;
}

.button.primary {
  color: var(--ink);
  background: linear-gradient(135deg, var(--green), var(--cyan));
  box-shadow: 0 14px 34px rgba(97, 217, 255, .22);
}

.button.secondary {
  color: white;
  border: 1px solid rgba(255, 255, 255, .28);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 32px 0 0;
}

.hero-stats div {
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 18px;
  background: rgba(255, 255, 255, .06);
}

.hero-stats dt {
  color: white;
  font-size: 28px;
  font-weight: 950;
  line-height: 1;
}

.hero-stats dd {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
}

.update-note {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, .62);
  font-size: 13px;
}

.hero-media,
.feature-media {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 28px;
  box-shadow: var(--shadow);
  background: #dfe9e6;
}

.hero-media img,
.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  transform: translateY(-34px);
}

.summary article {
  padding: 22px;
  border: 1px solid rgba(7, 19, 17, .08);
  border-radius: 22px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 16px 50px rgba(7, 19, 17, .08);
}

.summary span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 950;
}

.summary p {
  margin: 8px 0 0;
  color: #21332f;
  font-size: 15px;
}

.intro,
.feature,
.trust {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(420px, 1fr);
  gap: 52px;
  align-items: center;
}

.intro {
  padding: 42px 0 34px;
  align-items: start;
}

.rich-copy p,
.feature-copy > p:not(.eyebrow),
.references p,
.section-head p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.feature {
  padding: 78px 0;
}

.feature.reverse {
  grid-template-columns: minmax(420px, 1fr) minmax(0, .88fr);
}

.feature.reverse .feature-copy {
  order: 2;
}

.check-list {
  display: grid;
  gap: 13px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 34px;
  color: #243431;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .35em;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, .72);
}

.security-band {
  margin: 24px 0;
  color: white;
  background:
    radial-gradient(circle at 78% 20%, rgba(97, 217, 255, .18), transparent 28%),
    linear-gradient(140deg, #071311, #102a26);
}

.security-band .answer-block,
.security-band .security-grid p {
  color: rgba(255, 255, 255, .74);
}

.security-grid,
.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.security-grid article,
.trust-grid article {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 18px;
  background: rgba(255, 255, 255, .06);
}

.security-grid p,
.trust-grid p {
  margin: 8px 0 0;
  font-size: 14px;
}

.language-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.language-tags span {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #19302c;
  background: white;
  font-size: 13px;
  font-weight: 850;
}

.compare,
.process,
.trust,
.faq,
.references {
  padding: 72px 0;
}

.table-wrap {
  margin-top: 28px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: white;
  box-shadow: 0 18px 50px rgba(7, 19, 17, .08);
}

table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
  text-align: left;
}

th,
td {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: #16332e;
  background: var(--soft);
  font-size: 14px;
}

td {
  color: #2a3b38;
  font-size: 14px;
}

tr:last-child td {
  border-bottom: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.steps article,
.faq details,
.references,
.trust {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(7, 19, 17, .08);
}

.steps article {
  padding: 26px;
}

.steps span {
  display: inline-block;
  margin-bottom: 34px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 950;
}

.steps p {
  margin: 12px 0 0;
  color: var(--muted);
}

.trust {
  align-items: start;
  padding: 34px;
}

.trust-grid {
  margin-top: 0;
}

.trust-grid article {
  border-color: var(--line);
  background: var(--soft);
}

.trust-grid p {
  color: var(--muted);
}

.section-head {
  max-width: 920px;
  margin-bottom: 26px;
}

.faq details {
  padding: 0;
  overflow: hidden;
}

.faq details + details {
  margin-top: 14px;
}

.faq summary {
  min-height: 64px;
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 18px 24px;
  font-size: 17px;
  font-weight: 900;
  list-style-position: inside;
}

.faq details[open] summary {
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.faq details p {
  margin: 0;
  padding: 20px 24px 24px;
  color: var(--muted);
}

.references {
  padding: 30px;
}

.references ul {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding-left: 20px;
}

.references a {
  color: #087d73;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.cta {
  padding: 78px 0;
  color: white;
  background: linear-gradient(135deg, #071311, #123b35);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.cta h2 {
  max-width: 760px;
}

.cta p:not(.eyebrow) {
  max-width: 720px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, .74);
}

.site-footer {
  padding: 44px 0;
  color: white;
  background: #040a09;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.footer-grid strong {
  font-size: 22px;
}

.footer-grid p {
  max-width: 560px;
  margin: 10px 0 0;
  color: rgba(255, 255, 255, .64);
}

.footer-small {
  font-size: 12px;
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  justify-content: flex-end;
  color: rgba(255, 255, 255, .74);
}

@media (max-width: 980px) {
  html {
    scroll-padding-top: 118px;
  }

  .nav {
    grid-template-columns: auto auto;
    gap: 10px 16px;
    padding: 12px 0;
  }

  .nav-links {
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding: 4px 0 2px;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    background: rgba(255, 255, 255, .07);
  }

  .hero-grid,
  .intro,
  .feature,
  .feature.reverse,
  .trust {
    grid-template-columns: 1fr;
  }

  .feature.reverse .feature-copy {
    order: 0;
  }

  .summary,
  .steps,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .summary {
    transform: none;
    padding-top: 22px;
  }

  .security-grid,
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-grid nav {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  html {
    scroll-padding-top: 124px;
  }

  .wrap {
    width: min(calc(100% - 28px), var(--wrap));
  }

  .brand span:last-child {
    display: none;
  }

  .brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 13px;
  }

  .nav {
    grid-template-columns: auto auto;
  }

  .nav-cta {
    min-height: 40px;
    padding-inline: 12px;
    font-size: 13px;
  }

  .hero {
    padding: 34px 0 46px;
  }

  .hero-grid {
    gap: 26px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.12;
  }

  h2 {
    font-size: 27px;
  }

  h3 {
    font-size: 18px;
  }

  .hero .answer-block,
  .answer-block,
  .rich-copy p,
  .feature-copy > p:not(.eyebrow),
  .references p,
  .section-head p {
    font-size: 15px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-stats div {
    padding: 14px 16px;
  }

  .hero-media,
  .feature-media {
    border-radius: 18px;
  }

  .hero-media {
    aspect-ratio: 16 / 10;
  }

  .feature-media {
    aspect-ratio: 4 / 3;
  }

  .summary article {
    padding: 18px;
    border-radius: 18px;
  }

  .intro,
  .feature,
  .compare,
  .process,
  .trust,
  .faq,
  .references {
    padding-block: 46px;
  }

  .security-band {
    margin: 0;
  }

  .security-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .trust,
  .references {
    padding: 22px;
  }

  th,
  td {
    padding: 14px;
  }

  .steps article {
    padding: 22px;
  }

  .steps span {
    margin-bottom: 22px;
  }

  .faq summary {
    min-height: 58px;
    padding: 16px 18px;
    font-size: 16px;
  }

  .faq details p {
    padding: 16px 18px 20px;
    font-size: 15px;
  }

  .cta {
    padding: 56px 0;
  }
}

@media (max-width: 380px) {
  h1 {
    font-size: 31px;
  }

  h2 {
    font-size: 25px;
  }

  .nav-links a {
    font-size: 13px;
    padding-inline: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}