:root {
  color-scheme: light;
  --navy-950: #0b1728;
  --navy-900: #0d1b2d;
  --navy-800: #162b42;
  --navy-700: #29455e;
  --ink: #152d42;
  --muted: #526779;
  --line: #d7e3e8;
  --paper: #f6f9fa;
  --white: #ffffff;
  --mint: #7ce2d0;
  --mint-dark: #176f67;
  --amber: #e8b872;
  --shadow: 0 24px 60px rgba(7, 27, 45, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  z-index: 100;
  top: -5rem;
  left: 1rem;
  padding: 0.6rem 1rem;
  background: var(--mint);
  color: var(--navy-950);
  border-radius: 0.5rem;
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid #1cae9f;
  outline-offset: 4px;
}

.shell {
  width: min(100% - 3rem, 1180px);
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 2;
  background: var(--navy-950);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #edf6f6;
}

.header-inner,
.brand,
.site-nav,
.footer-inner {
  display: flex;
  align-items: center;
}

.header-inner {
  min-height: 5.3rem;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  gap: 0.8rem;
  text-decoration: none;
  line-height: 1.15;
  white-space: nowrap;
}

.brand-symbol {
  display: grid;
  place-items: center;
  width: 2.55rem;
  height: 2.55rem;
  border: 1px solid rgba(124, 226, 208, 0.65);
  border-radius: 0.65rem;
  color: var(--white);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.08em;
}

.brand-symbol span {
  color: var(--mint);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0.015em;
}

.brand small {
  margin-top: 0.23rem;
  color: #a8bac7;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.site-nav {
  gap: clamp(1.1rem, 2.6vw, 2.5rem);
}

.site-nav a,
.nav-action {
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
}

.site-nav a {
  color: #becdd6;
}

.site-nav a:hover,
.nav-action:hover {
  color: var(--mint);
}

.nav-action {
  border: 1px solid rgba(124, 226, 208, 0.55);
  border-radius: 0.35rem;
  padding: 0.56rem 0.9rem;
  white-space: nowrap;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 23%, rgba(47, 133, 135, 0.18), transparent 32%),
    linear-gradient(130deg, #0b1728 0%, #12263c 70%, #173b49 100%);
  color: #f2f8f8;
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.11;
  background-image:
    linear-gradient(rgba(170, 222, 222, 0.48) 1px, transparent 1px),
    linear-gradient(90deg, rgba(170, 222, 222, 0.48) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to right, transparent 0%, black 58%);
  pointer-events: none;
}

.hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(320px, 0.86fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
  min-height: 37rem;
  padding-block: 6rem 4.8rem;
}

.eyebrow,
.section-kicker,
.micro-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 800;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--mint);
}

.eyebrow-line {
  width: 1.5rem;
  height: 1px;
  background: var(--mint);
}

.hero h1 {
  margin: 1.3rem 0 1.25rem;
  font-size: clamp(2.7rem, 5.25vw, 5.25rem);
  line-height: 1.16;
  letter-spacing: -0.06em;
  font-weight: 780;
}

.hero h1 em {
  color: var(--mint);
  font-style: normal;
}

.hero-lead {
  max-width: 40rem;
  margin: 0;
  color: #c3d4dd;
  font-size: 1.08rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  min-height: 3.25rem;
  padding: 0.75rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 0.42rem;
  font-size: 0.95rem;
  font-weight: 750;
  line-height: 1.3;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--mint);
  color: var(--navy-950);
}

.button-primary.is-ready:hover {
  background: #a6f2e3;
}

.button-primary[aria-disabled="true"] {
  cursor: not-allowed;
  background: #8499a4;
  color: #172c37;
}

.button-primary[aria-disabled="true"]:hover {
  transform: none;
}

.button-quiet {
  border-color: rgba(255, 255, 255, 0.3);
  color: #f3f7f8;
  background: rgba(255, 255, 255, 0.045);
}

.button-quiet:hover {
  border-color: rgba(124, 226, 208, 0.8);
}

.button-icon {
  font-size: 1.15rem;
  line-height: 1;
}

.entry-status {
  margin: 0.9rem 0 0;
  color: #b4c8d0;
  font-size: 0.8rem;
}

.hero-visual {
  position: relative;
  padding: 1.5rem;
  border: 1px solid rgba(134, 209, 203, 0.37);
  border-radius: 1rem;
  background: linear-gradient(150deg, rgba(32, 68, 83, 0.92), rgba(12, 31, 52, 0.94));
  box-shadow: 0 32px 80px rgba(0, 7, 18, 0.28);
}

.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  width: 1.9rem;
  height: 1.9rem;
  pointer-events: none;
}

.hero-visual::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--mint);
  border-left: 2px solid var(--mint);
  border-top-left-radius: 1rem;
}

.hero-visual::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  border-bottom-right-radius: 1rem;
}

.visual-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #b6d0d4;
}

.visual-mark {
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.visual-question {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  margin-block: 2.5rem 2.8rem;
}

.question-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 2.7rem;
  height: 2.7rem;
  border: 1px solid rgba(232, 184, 114, 0.72);
  border-radius: 50%;
  color: var(--amber);
  font-size: 1.25rem;
  font-weight: 700;
}

.visual-question p {
  margin: 0;
  font-size: clamp(1.35rem, 2.1vw, 1.75rem);
  line-height: 1.55;
  font-weight: 680;
}

.visual-rule {
  height: 1px;
  background: rgba(191, 224, 224, 0.2);
}

.visual-steps {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.45rem;
  color: #d6e8e9;
  font-size: 0.78rem;
  font-weight: 650;
  white-space: nowrap;
}

.visual-steps i {
  flex: 1 1 auto;
  min-width: 0.45rem;
  height: 1px;
  background: linear-gradient(to right, #599ca0, #a2d6ce);
}

.visual-caption {
  margin: 2rem 0 0;
  color: #9fb7bf;
  font-size: 0.75rem;
  line-height: 1.55;
}

.hero-bottom {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1.3rem;
  padding-bottom: 1.7rem;
  color: #9bb3c0;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.hero-bottom-rule {
  width: 2.5rem;
  height: 1px;
  background: rgba(124, 226, 208, 0.55);
}

.section {
  padding-block: clamp(4.5rem, 8vw, 7rem);
}

.section-heading {
  max-width: 43rem;
}

.section-kicker {
  color: var(--mint-dark);
}

.section-heading h2,
.entry-section h2 {
  margin: 0.8rem 0 1rem;
  font-size: clamp(2rem, 3.4vw, 3.2rem);
  line-height: 1.23;
  letter-spacing: -0.045em;
}

.section-heading > p:last-child,
.entry-section p:not(.section-kicker) {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.journey-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
  margin-top: 2.6rem;
}

.journey-card {
  min-height: 15rem;
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--mint-dark);
  border-radius: 0.35rem;
  box-shadow: 0 14px 30px rgba(19, 54, 72, 0.045);
}

.journey-index {
  display: block;
  color: #448d87;
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.journey-card h3,
.feature-item h3,
.path-list h3 {
  margin: 1.2rem 0 0.55rem;
  font-size: 1.16rem;
  line-height: 1.4;
}

.journey-card p,
.feature-item p,
.path-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.feature-section {
  background: #eaf1f3;
}

.feature-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 7vw, 7rem);
}

.feature-intro {
  position: sticky;
  top: 2rem;
  align-self: start;
}

.feature-list {
  border-top: 1px solid #c6d9dd;
}

.feature-item {
  display: grid;
  grid-template-columns: 3.4rem 1fr;
  gap: 1.1rem;
  padding: 1.45rem 0 1.65rem;
  border-bottom: 1px solid #c6d9dd;
}

.feature-number {
  color: var(--mint-dark);
  font-size: 0.85rem;
  font-weight: 850;
  padding-top: 0.15rem;
}

.feature-item h3 {
  margin-top: 0;
}

.path-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(2rem, 7vw, 7rem);
}

.path-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.path-list li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.15rem;
  padding: 0 0 1.8rem;
  position: relative;
}

.path-list li:not(:last-child)::before {
  content: "";
  position: absolute;
  top: 3.05rem;
  bottom: 0.2rem;
  left: 1.47rem;
  width: 1px;
  background: #b9d5d5;
}

.path-number {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid #6db7ac;
  border-radius: 50%;
  color: var(--mint-dark);
  font-weight: 800;
}

.path-list h3 {
  margin: 0 0 0.45rem;
}

.faq-section {
  background: #fff;
  border-top: 1px solid #e4ebed;
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(2rem, 7vw, 7rem);
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  cursor: pointer;
  padding: 1.2rem 2.4rem 1.2rem 0;
  font-weight: 700;
  position: relative;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0.3rem;
  color: var(--mint-dark);
  font-size: 1.35rem;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin: 0 0 1.35rem;
  color: var(--muted);
  max-width: 38rem;
  font-size: 0.94rem;
}

.entry-section {
  background: var(--navy-900);
  color: #edf8f7;
  padding-block: 4rem;
}

.entry-section .section-kicker {
  color: var(--mint);
}

.entry-section h2 {
  margin-bottom: 0.7rem;
}

.entry-section p:not(.section-kicker) {
  color: #b8ccd4;
}

.entry-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
}

.entry-control {
  flex: 0 0 auto;
}

.button-large {
  min-height: 3.55rem;
  padding-inline: 1.45rem;
}

.entry-control .entry-status {
  max-width: 17rem;
  font-size: 0.8rem;
}

.site-footer {
  background: #081321;
  color: #9db4c0;
}

.footer-inner {
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  min-height: 5.5rem;
  padding-block: 1rem;
}

.footer-inner p {
  margin: 0;
  font-size: 0.77rem;
}

@media (max-width: 940px) {
  .site-nav {
    display: none;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 2.6rem;
    padding-block: 4.5rem 3rem;
  }

  .hero-copy {
    max-width: 45rem;
  }

  .hero-visual {
    max-width: 38rem;
  }

  .journey-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-layout,
  .path-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 2.2rem;
  }

  .feature-intro {
    position: static;
  }
}

@media (max-width: 600px) {
  .shell {
    width: min(100% - 2rem, 1180px);
  }

  .header-inner {
    min-height: 4.8rem;
  }

  .brand small {
    display: none;
  }

  .nav-action {
    padding: 0.5rem 0.7rem;
  }

  .hero-layout {
    min-height: 0;
    padding-block: 3.8rem 2.5rem;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 10vw, 4rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .visual-question {
    margin-block: 2rem 2.1rem;
  }

  .visual-steps {
    font-size: 0.68rem;
  }

  .hero-bottom {
    flex-wrap: wrap;
  }

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

  .journey-card {
    min-height: 0;
  }

  .entry-layout {
    align-items: stretch;
    flex-direction: column;
  }

  .entry-control,
  .entry-control .button {
    width: 100%;
  }
}

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

  .button {
    transition: none;
  }
}