:root {
  --ink: #102747;
  --ink-soft: #2f4665;
  --gold: #c9951a;
  --gold-soft: #f4ddb1;
  --sand: #f6f4ef;
  --mist: #e8edf3;
  --card: #ffffff;
  --line: #d5dde8;
  --ok: #0f7a56;
  --shadow-soft: 0 14px 42px rgba(16, 39, 71, 0.08);
  --shadow-strong: 0 22px 60px rgba(16, 39, 71, 0.16);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  background: linear-gradient(180deg, #f8f6f2 0%, #f0f4f9 100%);
}

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

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 84px 0;
}

.section-alt {
  background: var(--card);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--ink-soft);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
  line-height: 1.25;
}

p {
  margin: 0;
}

.lead {
  color: var(--ink-soft);
  font-size: 1.07rem;
}

.btn-row {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  padding: 13px 24px;
  color: #fff;
  background: linear-gradient(120deg, var(--ink), #224f86);
  box-shadow: 0 14px 28px rgba(16, 39, 71, 0.24);
}

.btn-ghost {
  padding: 13px 24px;
  border-color: rgba(16, 39, 71, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.92rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  border-bottom: 1px solid rgba(16, 39, 71, 0.09);
  backdrop-filter: blur(10px);
  background: rgba(246, 244, 239, 0.9);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.26rem;
  letter-spacing: 0.04em;
}

.brand small {
  display: block;
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  position: relative;
  color: var(--ink-soft);
  font-weight: 600;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.24s ease;
  background: linear-gradient(90deg, var(--gold), #efc86a);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-link.is-active {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(16, 39, 71, 0.2);
  background: #fff;
  color: var(--ink);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 0.88rem;
  font-weight: 700;
}

.hero {
  position: relative;
  overflow: clip;
  padding: 86px 0 74px;
}

.hero::before {
  content: "";
  position: absolute;
  top: -170px;
  right: -110px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle at 30% 30%, rgba(241, 203, 127, 0.56), rgba(241, 203, 127, 0));
}

.hero::after {
  content: "";
  position: absolute;
  left: -120px;
  bottom: -140px;
  width: 420px;
  height: 320px;
  border-radius: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(37, 80, 128, 0.16), rgba(37, 80, 128, 0));
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 42px;
  align-items: center;
}

.hero h1 {
  margin-top: 16px;
  font-size: clamp(2rem, 5vw, 3.7rem);
  letter-spacing: 0.02em;
}

.hero h1 span {
  color: #7e5a0b;
  font-style: italic;
}

.hero p {
  margin-top: 18px;
  max-width: 650px;
}

.hero-card {
  position: relative;
  background: linear-gradient(140deg, #0f2850, #1d497f);
  color: #edf2fb;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-strong);
}

.hero-card::after {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  top: -38px;
  right: -24px;
  background: rgba(255, 255, 255, 0.09);
}

.hero-card h2 {
  color: #fff;
  font-size: 1.7rem;
  margin-bottom: 18px;
}

.hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.hero-card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.hero-card li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 999px;
  background: var(--gold);
  flex-shrink: 0;
}

.data-strip {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.data-tile {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(16, 39, 71, 0.09);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 6px 14px rgba(16, 39, 71, 0.05);
}

.data-tile strong {
  display: block;
  color: var(--ink);
  font-size: 1.55rem;
  font-family: "Noto Serif SC", "Songti SC", serif;
}

.data-tile span {
  display: block;
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.section-head {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin-top: 14px;
  font-size: clamp(1.58rem, 3.4vw, 2.5rem);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--ink-soft);
}

.tag {
  display: inline-block;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: #7a5507;
  font-weight: 700;
}

.check-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--ink-soft);
}

.check-list li::before {
  content: "\2713";
  color: var(--ok);
  font-weight: 700;
  margin-top: 1px;
}

.ability-card {
  position: relative;
  overflow: hidden;
}

.ability-card::after {
  content: "";
  position: absolute;
  inset: auto -20px -20px auto;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(201, 149, 26, 0.12);
}

.ability-card h3 {
  margin-bottom: 8px;
}

.roadmap {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.roadmap::before {
  content: "";
  position: absolute;
  top: 24px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, rgba(16, 39, 71, 0.16), rgba(201, 149, 26, 0.6));
}

.step {
  position: relative;
  background: var(--card);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  padding: 52px 18px 20px;
  box-shadow: var(--shadow-soft);
}

.step .dot {
  position: absolute;
  top: 15px;
  left: 18px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 3px solid var(--gold);
  background: #fff;
}

.step h3 {
  font-size: 1.16rem;
  margin-bottom: 8px;
}

.quote {
  border-left: 4px solid var(--gold);
}

.quote p {
  color: var(--ink-soft);
}

.quote strong {
  display: block;
  margin-top: 12px;
  color: var(--ink);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  align-items: stretch;
}

.contact-panel {
  background: linear-gradient(140deg, #102747, #214e84);
  color: #eef3fb;
}

.contact-panel h3,
.contact-panel p,
.contact-panel li {
  color: inherit;
}

.info-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.info-list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.form {
  display: grid;
  gap: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c8d2e0;
  border-radius: 10px;
  background: #fff;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(16, 39, 71, 0.18);
  border-color: #9fb5d3;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.compare-table th,
.compare-table td {
  border-bottom: 1px solid #dae2ee;
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: #edf2f8;
  color: var(--ink);
  font-size: 0.93rem;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.badge {
  padding: 6px 11px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  background: #e9f1fc;
  color: #1f4b7f;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 16px;
  align-items: start;
}

.timeline-item strong {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.16rem;
}

.timeline-item p {
  color: var(--ink-soft);
}

.cta-banner {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 34px;
  background: linear-gradient(145deg, #122c4f, #345f94);
  color: #f2f6fc;
  box-shadow: var(--shadow-strong);
}

.cta-banner::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.cta-banner h2,
.cta-banner p {
  position: relative;
  z-index: 1;
  color: inherit;
}

.site-footer {
  margin-top: 40px;
  background: #0d223f;
  color: #cfd9ea;
  padding: 28px 0;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: #d8e3f6;
  font-size: 0.92rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--delay, 0s);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 78px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(16, 39, 71, 0.08);
    padding: 16px 24px 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav-links.is-open {
    display: flex;
  }

  .hero-grid,
  .contact-wrap,
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

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

  .roadmap::before {
    display: none;
  }

  .step {
    padding-top: 20px;
  }

  .step .dot {
    display: none;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (max-width: 620px) {
  .section {
    padding: 68px 0;
  }

  .hero {
    padding-top: 64px;
  }

  .data-strip {
    grid-template-columns: 1fr;
  }

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

  .btn,
  .btn-primary,
  .btn-ghost {
    width: 100%;
  }

  .footer-wrap {
    align-items: flex-start;
    flex-direction: column;
  }
}