:root {
  --navy: #0a192f;
  --navy-deep: #071221;
  --navy-ink: #16243a;
  --cream: #f5f2e8;
  --cream-deep: #efe8d8;
  --white: #fffdf8;
  --gold: #c5a059;
  --gold-bright: #d4b36a;
  --gold-soft: rgba(197, 160, 89, 0.22);
  --ink: #1a2b48;
  --muted: #5c6574;
  --line: rgba(197, 160, 89, 0.45);
  --header-h: 82px;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow: 0 18px 40px rgba(10, 25, 47, 0.08);
  --radius: 4px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  min-height: 100vh;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  appearance: none;
  border-radius: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: var(--navy);
  border-bottom: 1px solid rgba(197, 160, 89, 0.18);
}

.header-inner {
  width: min(1280px, calc(100% - 48px));
  height: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
}

.brand-text strong {
  display: block;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gold);
  line-height: 1.15;
}

.brand-text small {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(245, 242, 232, 0.62);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 34px;
}

.site-nav a {
  position: relative;
  color: rgba(255, 253, 248, 0.88);
  font-size: 15px;
  letter-spacing: 0.12em;
  padding: 8px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 22px;
  height: 1px;
  background: var(--gold);
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--gold-bright);
}

.site-nav a.is-active::after,
.site-nav a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--gold);
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: 0.25s ease;
}

.header-cta svg {
  width: 15px;
  height: 15px;
}

.header-cta:hover {
  background: var(--gold);
  color: var(--navy);
}

.nav-only {
  display: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(197, 160, 89, 0.4);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  position: relative;
  margin: 0 auto;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

/* ---------- Shared page stage (brand-story scheme) ---------- */
.page-stage {
  position: relative;
  background: var(--cream);
  overflow: hidden;
  min-height: calc(100vh - var(--header-h) - 210px);
}

.page-stage::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: min(48%, 680px);
  background:
    linear-gradient(90deg, rgba(245, 242, 232, 0) 18%, rgba(245, 242, 232, 0.28) 58%, var(--cream) 100%),
    url("../img/courtyard-night.png") 18% center / cover no-repeat;
  pointer-events: none;
}

.page-stage.is-home::before {
  width: min(58%, 860px);
  background:
    linear-gradient(90deg, rgba(10, 25, 47, 0.18) 0%, rgba(245, 242, 232, 0) 38%, var(--cream) 78%),
    url("../img/courtyard-night.png") 18% center / cover no-repeat;
}

.page-shell {
  position: relative;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 72px 0 80px;
}

.page-stage.is-home .page-shell {
  padding: 88px 0 92px;
}

.page-heading {
  text-align: center;
  margin: 0 0 52px;
  padding-left: 22%;
}

.page-heading h1 {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--navy);
}

.ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--gold);
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: 0.16em;
}

.ornament::before,
.ornament::after {
  content: "";
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.ornament::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.ornament i {
  width: 5px;
  height: 5px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* ---------- Home ---------- */
.home-hero {
  width: min(720px, 100%);
  margin-left: auto;
  padding: 24px 8px 8px 0;
}

.home-kicker {
  margin: 0 0 18px;
  color: var(--gold);
  letter-spacing: 0.28em;
  font-size: 13px;
}

.home-hero h1 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: clamp(40px, 5.2vw, 62px);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: 0.08em;
  color: var(--navy);
}

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

.home-lead {
  margin: 0 0 28px;
  color: var(--muted);
  letter-spacing: 0.16em;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--gold);
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: 0.25s ease;
}

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

.btn-solid:hover {
  background: var(--gold-bright);
}

.btn-ghost {
  background: transparent;
  color: var(--navy);
}

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

.trust-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  color: var(--ink);
  font-size: 14px;
}

.trust-chips span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
}

.trust-chips span:first-child {
  padding-left: 0;
}

.trust-chips span + span {
  border-left: 1px solid var(--line);
}

.trust-chips svg {
  width: 16px;
  height: 16px;
  color: var(--gold);
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  padding-left: 16%;
}

.value-card,
.step-card,
.trust-card,
.info-card {
  background: var(--white);
  border: 1px solid var(--gold);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.value-card:hover,
.step-card:hover,
.trust-card:hover,
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 40px rgba(10, 25, 47, 0.12);
}

.value-card {
  padding: 36px 28px 34px;
  text-align: center;
  min-height: 268px;
}

.card-icon {
  width: 42px;
  height: 42px;
  margin: 0 auto 16px;
  color: var(--gold);
}

.value-card h2 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 600;
  color: var(--navy);
}

.value-card p,
.step-card p,
.trust-card p,
.info-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  text-align: justify;
}

/* ---------- Quote banner ---------- */
.quote-wrap {
  width: min(1180px, calc(100% - 48px));
  margin: -8px auto 56px;
}

.quote-banner {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  border: 1px solid var(--gold);
  color: var(--gold);
  min-height: 148px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 42px 80px;
  text-align: center;
}

.quote-banner p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: 0.12em;
  line-height: 1.7;
}

.quote-banner .mark {
  position: absolute;
  font-family: var(--serif);
  font-size: 64px;
  line-height: 1;
  color: rgba(197, 160, 89, 0.38);
}

.quote-banner .mark-l {
  top: 10px;
  left: 28px;
}

.quote-banner .mark-r {
  right: 28px;
  bottom: -6px;
}

.quote-mountains {
  position: absolute;
  right: 36px;
  bottom: 18px;
  width: 180px;
  opacity: 0.35;
}

.quote-diamond {
  position: absolute;
  left: 50%;
  bottom: 14px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--gold);
  transform: translateX(-50%) rotate(45deg);
}

/* ---------- Service ---------- */
.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-left: 8%;
}

.step-card {
  position: relative;
  padding: 28px 22px 26px;
  text-align: center;
}

.step-no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 28px;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.step-card .card-icon {
  margin-bottom: 12px;
}

.step-card h2 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--navy);
}

.cta-banner {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto 72px;
  background: var(--navy);
  border: 1px solid var(--gold);
  color: var(--cream);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 36px;
}

.cta-banner h2 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.cta-banner p {
  margin: 0;
  color: rgba(245, 242, 232, 0.72);
  font-size: 14px;
}

/* ---------- Trust ---------- */
.trust-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  padding-left: 8%;
  align-items: stretch;
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.trust-card {
  padding: 24px 22px;
}

.trust-card h2 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--navy);
}

.trust-photo {
  position: relative;
  min-height: 360px;
  border: 1px solid var(--gold);
  overflow: hidden;
}

.trust-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.88);
}

.trust-strip {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto 72px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.7);
}

.trust-strip span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 8px;
  color: var(--navy);
  letter-spacing: 0.16em;
}

.trust-strip span + span {
  border-left: 1px solid var(--line);
}

.trust-strip svg {
  width: 18px;
  height: 18px;
  color: var(--gold);
}

/* ---------- Contact ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  padding-left: 8%;
}

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

.info-card {
  padding: 22px 24px;
}

.info-card h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--navy);
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--gold);
  padding: 32px 28px;
  box-shadow: var(--shadow);
}

.contact-form h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 24px;
  letter-spacing: 0.12em;
  color: var(--navy);
}

.form-note {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 13px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--navy);
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--navy);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid rgba(26, 43, 72, 0.16);
  background: #fff;
  color: var(--ink);
  padding: 11px 12px;
  outline: none;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--gold);
}

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

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy);
  color: rgba(245, 242, 232, 0.72);
  padding: 42px 0 22px;
}

.footer-inner {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 2fr auto;
  gap: 32px;
  align-items: start;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(197, 160, 89, 0.16);
}

.footer-brand strong {
  display: block;
  font-family: var(--serif);
  font-size: 24px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.footer-brand p {
  margin: 10px 0 0;
  font-size: 13px;
}

.footer-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.footer-meta h3 {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.footer-meta p {
  margin: 0;
  font-size: 14px;
}

.footer-beian {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 18px 0 4px;
  text-align: center;
  color: rgba(245, 242, 232, 0.78);
}

.footer-copy {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(245, 242, 232, 0.62);
}

.beian-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 14px;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0;
}

.beian-row a,
.beian-row span[aria-disabled="true"] {
  color: rgba(245, 242, 232, 0.88);
  text-decoration: none;
}

.beian-row a:hover {
  color: #fff;
  text-decoration: underline;
}

.beian-row [aria-disabled="true"] {
  cursor: default;
  color: rgba(245, 242, 232, 0.7);
}

.beian-sep {
  color: rgba(197, 160, 89, 0.55);
}

.beian-police {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-footer .beian-badge {
  width: 16px;
  height: 16px;
  max-width: 16px;
  max-height: 16px;
  flex: 0 0 16px;
  display: block;
  object-fit: contain;
}

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(7, 18, 33, 0.58);
}

.modal.is-open {
  display: flex;
}

.modal-panel {
  width: min(520px, 100%);
  background: var(--cream);
  border: 1px solid var(--gold);
  padding: 36px 32px 32px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border: 0;
  background: transparent;
  color: var(--navy);
  font-size: 22px;
  cursor: pointer;
}

.modal-panel h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 28px;
  letter-spacing: 0.16em;
  color: var(--navy);
}

.success-box {
  padding: 28px 8px;
  text-align: center;
}

.success-box h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 24px;
  color: var(--navy);
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .header-inner {
    width: calc(100% - 32px);
  }

  .site-nav {
    gap: 22px;
  }

  .card-grid,
  .step-grid,
  .trust-layout,
  .contact-layout,
  .page-heading {
    padding-left: 0;
  }

  .page-stage::before,
  .page-stage.is-home::before {
    width: 100%;
    height: 280px;
    inset: 0 0 auto 0;
    background:
      linear-gradient(180deg, rgba(245, 242, 232, 0) 36%, var(--cream) 92%),
      url("../img/courtyard-night.png") center 30% / cover no-repeat;
  }

  .page-shell {
    padding-top: 220px;
  }

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

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: none;
    flex-direction: column;
    gap: 0;
    background: var(--navy-deep);
    padding: 12px 20px 20px;
    border-bottom: 1px solid rgba(197, 160, 89, 0.2);
  }

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

  .site-nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(197, 160, 89, 0.12);
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .site-header .header-cta:not(.nav-only) {
    display: none;
  }

  .nav-only {
    display: inline-flex;
    margin-top: 14px;
    align-self: flex-start;
  }

  .brand-text small {
    display: none;
  }

  .card-grid,
  .trust-grid,
  .trust-layout,
  .contact-layout,
  .form-grid,
  .footer-inner,
  .footer-meta,
  .trust-strip {
    grid-template-columns: 1fr;
  }

  .trust-photo {
    min-height: 240px;
  }

  .cta-banner,
  .quote-banner {
    flex-direction: column;
    text-align: center;
    padding: 28px 22px;
  }

  .trust-strip span + span {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .home-hero {
    margin: 0;
  }
}

@media (max-width: 640px) {
  .step-grid {
    grid-template-columns: 1fr;
  }

  .page-heading h1,
  .home-hero h1 {
    letter-spacing: 0.08em;
  }

  .quote-banner .mark,
  .quote-mountains {
    display: none;
  }
}