/* Jiuqian public website design system */

:root {
  --ink: #111827;
  --navy: #13213f;
  --navy-2: #1d2f55;
  --blue-grey: #d9e1ea;
  --paper: #f7f8f4;
  --white: #ffffff;
  --line: #dfe5df;
  --muted: #5f6b7a;
  --gold: #b89235;
  --gold-dark: #85651f;
  --jade: #2f6f62;
  --shadow: 0 18px 50px rgba(17, 24, 39, 0.12);
  --radius: 8px;
  --container: 1180px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.68;
  overflow-x: hidden;
}

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

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

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(19, 33, 63, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-color: var(--line);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.08);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.header.scrolled .logo {
  color: var(--navy);
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(184, 146, 53, 0.55);
  border-radius: 8px;
  background: rgba(184, 146, 53, 0.15);
  color: #f0d88b;
  font-weight: 800;
}

.header.scrolled .logo-mark {
  color: var(--gold-dark);
  background: rgba(184, 146, 53, 0.1);
}

.logo-text {
  font-size: 18px;
}

.nav-menu {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  font-weight: 600;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}

.header.scrolled .nav-link {
  color: #435066;
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link:focus-visible,
.header.scrolled .nav-link.active {
  color: var(--navy);
  background: rgba(19, 33, 63, 0.07);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 6px;
  background: var(--gold);
  color: var(--navy);
  font-size: 14px;
  font-weight: 800;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: #d0aa4b;
  transform: translateY(-1px);
  outline: none;
}

.mobile-menu-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.header.scrolled .mobile-menu-toggle {
  border-color: var(--line);
}

.hamburger {
  width: 18px;
  display: grid;
  gap: 4px;
}

.hamburger span {
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.header.scrolled .hamburger span {
  background: var(--navy);
}

.mobile-menu-toggle.active .hamburger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

main {
  padding-top: 72px;
}

.hero {
  position: relative;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(19, 33, 63, 0.96), rgba(29, 47, 85, 0.92)),
    radial-gradient(circle at 80% 18%, rgba(184, 146, 53, 0.18), transparent 28%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(90deg, transparent, #000 20%, #000 80%, transparent);
  pointer-events: none;
}

.hero-shell {
  position: relative;
  min-height: 680px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: 72px;
  padding: 86px 0 72px;
}

.eyebrow {
  margin: 0 0 18px;
  color: #e5c56e;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1,
.page-hero h1 {
  margin: 0;
  font-size: clamp(48px, 7vw, 86px);
  line-height: 1;
  letter-spacing: 0;
}

.hero-lead,
.page-lead {
  max-width: 650px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.75;
}

.hero-actions,
.section-actions,
.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 800;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.btn-primary {
  background: var(--gold);
  color: var(--navy);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #d2ad4f;
}

.btn-secondary {
  border-color: rgba(255, 255, 255, 0.32);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.62);
  background: rgba(255, 255, 255, 0.14);
}

.btn-light {
  border-color: var(--line);
  color: var(--navy);
  background: var(--white);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 46px;
  max-width: 640px;
}

.proof-item {
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  padding-top: 16px;
}

.proof-item strong {
  display: block;
  font-size: 22px;
  line-height: 1.2;
}

.proof-item span {
  display: block;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.hero-panel,
.page-panel {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  padding: 26px;
}

.panel-kicker {
  margin: 0 0 10px;
  color: #e5c56e;
  font-size: 13px;
  font-weight: 800;
}

.panel-title {
  margin: 0 0 24px;
  font-size: 24px;
  line-height: 1.35;
}

.workflow-list {
  display: grid;
  gap: 12px;
}

.workflow-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.workflow-step span {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: rgba(184, 146, 53, 0.18);
  color: #f1d88d;
  font-weight: 900;
}

.workflow-step strong {
  display: block;
  margin-bottom: 4px;
}

.workflow-step p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
}

.trust-strip {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.trust-item {
  min-height: 122px;
  padding: 24px;
  background: var(--white);
}

.trust-item span {
  display: block;
  margin-bottom: 10px;
  color: var(--gold-dark);
  font-size: 13px;
  font-weight: 800;
}

.trust-item strong {
  display: block;
  color: var(--navy);
  font-size: 18px;
  line-height: 1.35;
}

.section {
  padding: 100px 0;
  background: var(--paper);
}

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

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.5fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 42px;
}

.section-label {
  margin: 0 0 12px;
  color: var(--gold-dark);
  font-size: 14px;
  font-weight: 900;
}

.section-title {
  margin: 0;
  color: var(--navy);
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.15;
  letter-spacing: 0;
}

.section-intro {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.feature-grid,
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card,
.info-card,
.timeline-card {
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 28px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover,
.info-card:hover,
.timeline-card:hover {
  border-color: rgba(184, 146, 53, 0.45);
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08);
  transform: translateY(-2px);
}

.feature-number,
.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 24px;
  border-radius: 6px;
  color: var(--gold-dark);
  background: rgba(184, 146, 53, 0.12);
  font-weight: 900;
}

.feature-card h3,
.info-card h3,
.timeline-card h3 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.35;
}

.feature-card p,
.info-card p,
.timeline-card p {
  margin: 0;
  color: var(--muted);
}

.method-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.method-statement {
  position: sticky;
  top: 110px;
}

.method-statement p {
  color: var(--muted);
}

.method-list {
  display: grid;
  gap: 16px;
}

.method-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.method-row span {
  color: var(--gold-dark);
  font-weight: 900;
}

.method-row h3 {
  margin: 0 0 8px;
  color: var(--navy);
}

.method-row p {
  margin: 0;
  color: var(--muted);
}

.roadmap-preview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--white);
}

.roadmap-step {
  padding: 32px;
  border-right: 1px solid var(--line);
}

.roadmap-step:last-child {
  border-right: 0;
}

.roadmap-step span {
  color: var(--gold-dark);
  font-weight: 900;
}

.roadmap-step h3 {
  margin: 18px 0 10px;
  color: var(--navy);
}

.roadmap-step p {
  margin: 0;
  color: var(--muted);
}

.section-contact {
  background: var(--navy);
  color: var(--white);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.62fr);
  gap: 48px;
  align-items: center;
}

.contact-panel h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.2;
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.72);
}

.contact-list {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.contact-list a,
.contact-list span {
  color: rgba(255, 255, 255, 0.82);
}

.footer {
  background: #0d172c;
  color: rgba(255, 255, 255, 0.72);
  padding: 54px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 36px;
}

.footer h4 {
  margin: 0 0 16px;
  color: var(--white);
}

.footer p {
  margin: 8px 0;
}

.footer a {
  color: rgba(255, 255, 255, 0.72);
  transition: color var(--transition);
}

.footer a:hover,
.footer a:focus-visible {
  color: #e5c56e;
  outline: none;
}

.footer-bottom {
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.48);
}

.page-hero {
  padding: 130px 0 80px;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.55fr);
  gap: 56px;
  align-items: end;
}

.page-panel {
  align-self: stretch;
}

.page-panel dl {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-panel dt {
  color: #e5c56e;
  font-size: 13px;
  font-weight: 900;
}

.page-panel dd {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.8);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.content-list {
  display: grid;
  gap: 16px;
}

.content-row {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.content-row h3 {
  margin: 0 0 8px;
  color: var(--navy);
}

.content-row p {
  margin: 0;
  color: var(--muted);
}

.quiet-list {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.quiet-list li + li {
  margin-top: 8px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}