:root {
  --ink: #11251f;
  --deep: #123f33;
  --deep-2: #0b2d25;
  --gold: #d9b46f;
  --gold-2: #f1d99a;
  --cream: #f8f2e5;
  --paper: #fffaf0;
  --muted: #6d756f;
  --line: rgba(18, 63, 51, 0.14);
  --shadow: 0 24px 70px rgba(18, 63, 51, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Serif SC", "Source Han Serif SC", "Microsoft YaHei", serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(217, 180, 111, 0.2), transparent 34rem),
    linear-gradient(180deg, #fffaf1 0%, #f3eadb 42%, #fffaf0 100%);
  overflow-x: hidden;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem clamp(1.2rem, 4vw, 4rem);
  background: rgba(255, 250, 240, 0.82);
  border-bottom: 1px solid rgba(18, 63, 51, 0.1);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.brand-mark {
  display: grid;
  width: 2.8rem;
  height: 2.8rem;
  place-items: center;
  color: #fff9df;
  font-weight: 900;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, var(--deep), #1e6a54);
  box-shadow: 0 10px 24px rgba(18, 63, 51, 0.18);
}

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

.brand strong {
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}

.brand small {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
}

nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  color: rgba(17, 37, 31, 0.78);
  font-size: 0.95rem;
}

.nav-cta {
  padding: 0.65rem 1rem;
  color: #fff7db;
  border-radius: 999px;
  background: var(--deep);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(22rem, 0.62fr);
  gap: clamp(2rem, 5vw, 4rem);
  min-height: 38rem;
  padding: clamp(3.6rem, 7vw, 6rem) clamp(1.2rem, 5vw, 5rem) 3.5rem;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 3rem 2rem auto auto;
  width: 24rem;
  height: 24rem;
  content: "";
  background: radial-gradient(circle, rgba(217, 180, 111, 0.24), transparent 68%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  left: -8rem;
  bottom: 0;
  width: 42rem;
  height: 22rem;
  background: radial-gradient(circle, rgba(18, 63, 51, 0.16), transparent 70%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  align-self: center;
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 0 0 1rem;
  padding: 0.45rem 0.8rem;
  color: var(--deep);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 1px solid rgba(18, 63, 51, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 11em;
  margin-bottom: 1.4rem;
  font-size: clamp(2.8rem, 5.35vw, 5.15rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
  font-weight: 900;
}

h1 span {
  display: block;
}

.hero-lead {
  max-width: 42rem;
  color: rgba(17, 37, 31, 0.76);
  font-size: clamp(1.06rem, 1.7vw, 1.35rem);
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 2rem 0 2.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.86rem 1.35rem;
  font-weight: 800;
  border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.button.primary {
  color: #fff8df;
  background: linear-gradient(135deg, var(--deep), #1d6a54);
  box-shadow: 0 16px 36px rgba(18, 63, 51, 0.22);
}

.button.secondary {
  color: var(--deep);
  border: 1px solid rgba(18, 63, 51, 0.16);
  background: rgba(255, 255, 255, 0.68);
}

.button.light {
  color: var(--deep);
  background: linear-gradient(135deg, #fff7d8, var(--gold-2));
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.trust-strip span {
  padding: 0.7rem 1rem;
  border: 1px solid rgba(18, 63, 51, 0.12);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.68);
}

.trust-strip b {
  color: var(--deep);
  font-size: 1.35rem;
}

.hero-card {
  position: relative;
  align-self: center;
  min-height: auto;
  padding: 1.2rem;
  color: #fff8df;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 2rem;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.13), transparent 30%),
    linear-gradient(135deg, var(--deep-2), #144637 55%, #061c17);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card::after {
  position: absolute;
  right: -7rem;
  bottom: -8rem;
  width: 18rem;
  height: 18rem;
  content: "";
  border-radius: 999px;
  background: rgba(217, 180, 111, 0.2);
}

.brand-photo {
  position: relative;
  z-index: 1;
  margin: 0 0 1rem;
  overflow: hidden;
  border-radius: 1.45rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
}

.brand-photo img {
  display: block;
  width: 100%;
  height: 10.8rem;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.95) contrast(1.02);
}

.brand-photo figcaption {
  position: absolute;
  left: 0.8rem;
  bottom: 0.8rem;
  padding: 0.38rem 0.68rem;
  font-size: 0.82rem;
  color: #fff8df;
  border-radius: 999px;
  background: rgba(9, 32, 27, 0.68);
  backdrop-filter: blur(8px);
}

.card-top {
  position: relative;
  display: grid;
  gap: 0.55rem;
  padding: 1rem;
  z-index: 1;
}

.card-top.compact {
  padding-top: 0.2rem;
}

.card-top span {
  color: var(--gold-2);
  letter-spacing: 0.18em;
}

.card-top strong {
  max-width: 12em;
  font-size: 1.72rem;
  line-height: 1.18;
}

.hero-snapshot {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  margin: 1rem 0;
}

.hero-snapshot div {
  padding: 0.9rem;
  color: #fff8df;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.1);
}

.hero-snapshot b,
.hero-snapshot span {
  display: block;
}

.hero-snapshot b {
  color: var(--gold-2);
  font-size: 1.35rem;
  line-height: 1.2;
}

.hero-snapshot span {
  margin-top: 0.28rem;
  color: rgba(255, 248, 223, 0.76);
  font-size: 0.8rem;
  line-height: 1.35;
}

.city-chips {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.5rem;
}

.city-chips span {
  padding: 0.66rem 0.8rem;
  color: rgba(255, 248, 223, 0.84);
  font-size: 0.88rem;
  border-radius: 0.88rem;
  background: rgba(255, 255, 255, 0.08);
}

.section {
  margin: 0 clamp(1rem, 5vw, 5rem) 1.2rem;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid rgba(18, 63, 51, 0.09);
  border-radius: 2rem;
  background: rgba(255, 252, 245, 0.78);
  box-shadow: 0 20px 60px rgba(18, 63, 51, 0.08);
}

.section-heading {
  max-width: 46rem;
  margin-bottom: 2rem;
}

h2 {
  color: var(--deep-2);
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.section-heading p,
.proof p,
.geo-copy p,
.cta p {
  color: var(--muted);
  line-height: 1.9;
}

.proof {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 2rem;
  align-items: start;
}

.proof-photo {
  margin: 1.3rem 0 0;
  overflow: hidden;
  border-radius: 1.4rem;
  border: 1px solid rgba(18, 63, 51, 0.1);
  background: rgba(255, 255, 255, 0.64);
}

.proof-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 44%;
}

.proof-photo figcaption {
  padding: 0.8rem 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.proof-list {
  display: grid;
  gap: 1rem;
}

.proof-list article,
.service-card,
.city-card,
.faq-list article {
  border: 1px solid rgba(18, 63, 51, 0.1);
  border-radius: 1.35rem;
  background: rgba(255, 255, 255, 0.66);
}

.proof-list article {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  column-gap: 1rem;
  padding: 1.25rem;
}

.proof-list span {
  grid-row: span 2;
  color: var(--gold);
  font-size: 1.7rem;
  font-weight: 900;
}

.proof-list h3,
.service-card h3,
.city-card h3,
.faq-list h3 {
  margin-bottom: 0.55rem;
  color: var(--deep-2);
}

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

.media-section {
  background:
    linear-gradient(135deg, rgba(217, 180, 111, 0.12), transparent 42%),
    rgba(255, 252, 245, 0.84);
}

.photo-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 1rem;
}

.photo-grid figure {
  position: relative;
  min-height: 16rem;
  margin: 0;
  overflow: hidden;
  border-radius: 1.35rem;
  background: #e8decf;
  border: 1px solid rgba(18, 63, 51, 0.1);
}

.photo-grid .photo-large {
  grid-row: span 2;
}

.photo-grid img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.photo-grid figure:hover img {
  transform: scale(1.04);
}

.photo-grid figcaption {
  position: absolute;
  left: 0.8rem;
  right: 0.8rem;
  bottom: 0.8rem;
  padding: 0.58rem 0.75rem;
  color: #fff8df;
  font-weight: 800;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, rgba(9, 32, 27, 0.78), rgba(18, 63, 51, 0.56));
  backdrop-filter: blur(8px);
}

.service-card {
  min-height: 16rem;
  padding: 1.4rem;
}

.service-icon {
  display: grid;
  width: 3.2rem;
  height: 3.2rem;
  place-items: center;
  margin-bottom: 1rem;
  color: #fff8df;
  font-weight: 900;
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--deep), #1e6a54);
}

.service-card p {
  color: var(--muted);
  line-height: 1.8;
}

.service-card small {
  display: block;
  margin-top: 1rem;
  color: rgba(18, 63, 51, 0.58);
}

.city-section {
  background:
    linear-gradient(135deg, rgba(18, 63, 51, 0.08), transparent 38%),
    rgba(255, 252, 245, 0.82);
}

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

.city-card {
  padding: 1.4rem;
}

.city-badge {
  display: inline-flex;
  margin-bottom: 1rem;
  padding: 0.45rem 0.78rem;
  color: #fff8df;
  font-weight: 800;
  border-radius: 999px;
  background: var(--deep);
}

.city-card p,
.city-card dd {
  color: var(--muted);
  line-height: 1.8;
}

.city-card dl {
  margin: 1rem 0 0;
}

.city-card dt {
  margin-top: 0.8rem;
  color: var(--deep);
  font-weight: 900;
}

.city-card dd {
  margin: 0.2rem 0 0;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 10rem;
  padding: 1rem;
  color: var(--muted);
  line-height: 1.7;
  border-radius: 1.2rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(248, 242, 229, 0.82));
  border: 1px solid rgba(18, 63, 51, 0.09);
}

.process-list span {
  display: block;
  margin-bottom: 1rem;
  color: var(--gold);
  font-weight: 900;
}

.geo-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 24rem;
  gap: 2rem;
  color: #fff8df;
  background:
    radial-gradient(circle at 85% 10%, rgba(217, 180, 111, 0.24), transparent 20rem),
    linear-gradient(135deg, var(--deep-2), #174c3d);
}

.geo-section h2,
.geo-section .eyebrow {
  color: #fff8df;
}

.geo-section .eyebrow {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.1);
}

.geo-copy p {
  color: rgba(255, 248, 223, 0.76);
}

.geo-panel {
  display: grid;
  gap: 0.7rem;
  padding: 1.2rem;
  border-radius: 1.4rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.geo-panel span {
  padding: 0.7rem 0.8rem;
  color: rgba(255, 248, 223, 0.86);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.08);
}

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

.video-grid article {
  padding: 1rem;
  border: 1px solid rgba(18, 63, 51, 0.1);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.66);
}

.video-grid video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 1.1rem;
  background: #071c17;
}

.video-grid h3 {
  margin: 1rem 0 0.35rem;
  color: var(--deep-2);
}

.video-grid p {
  color: var(--muted);
  line-height: 1.8;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.faq-list article {
  padding: 1.3rem;
}

.faq-list p {
  color: var(--muted);
  line-height: 1.8;
}

.knowledge-teaser .button {
  margin-top: 1rem;
}

.teaser-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.teaser-grid a,
.article-card {
  display: block;
  padding: 1.2rem;
  color: inherit;
  border: 1px solid rgba(18, 63, 51, 0.1);
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.teaser-grid a:hover,
.article-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(18, 63, 51, 0.12);
}

.teaser-grid span,
.article-card span {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--gold);
  font-weight: 800;
}

.teaser-grid strong,
.article-card h3 {
  display: block;
  color: var(--deep-2);
  font-size: 1.25rem;
  line-height: 1.35;
}

.article-card p {
  color: var(--muted);
  line-height: 1.75;
}

.article-page,
.knowledge-page {
  padding: clamp(1rem, 4vw, 4rem);
}

.article-hero {
  max-width: 58rem;
  margin: 0 auto 1rem;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid rgba(18, 63, 51, 0.1);
  border-radius: 2rem;
  background: rgba(255, 252, 245, 0.86);
}

.article-hero h1 {
  max-width: 11em;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
}

.article-desc {
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.9;
}

.article-meta,
.knowledge-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.article-meta span,
.knowledge-stats span {
  padding: 0.65rem 0.85rem;
  border: 1px solid rgba(18, 63, 51, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.knowledge-stats {
  max-width: 58rem;
  margin: 0 auto 1rem;
}

.knowledge-stats b {
  color: var(--deep);
  font-size: 1.35rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--deep);
  font-weight: 800;
}

.answer-box,
.article-content {
  max-width: 58rem;
  margin: 0 auto 1rem;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border: 1px solid rgba(18, 63, 51, 0.1);
  border-radius: 1.6rem;
  background: rgba(255, 255, 255, 0.78);
}

.answer-box strong {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--deep);
  font-size: 1.25rem;
}

.answer-box p,
.article-content p,
.signal-list {
  color: var(--muted);
  line-height: 2;
}

.article-content section + section {
  margin-top: 2rem;
}

.article-content h2 {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
}

.article-faq {
  max-width: 58rem;
  margin-right: auto;
  margin-left: auto;
}

.cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2rem;
  margin: 0 clamp(1rem, 5vw, 5rem) 1.2rem;
  padding: clamp(2rem, 5vw, 4rem);
  color: #fff8df;
  border-radius: 2rem;
  background: linear-gradient(135deg, var(--deep), #0d3028);
  box-shadow: var(--shadow);
}

.cta h2 {
  max-width: 22em;
  color: #fff8df;
}

.cta .eyebrow {
  color: #fff8df;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
}

.cta p {
  color: rgba(255, 248, 223, 0.75);
}

footer {
  padding: 2rem clamp(1.2rem, 5vw, 5rem) 3rem;
  color: rgba(17, 37, 31, 0.68);
  line-height: 1.8;
}

footer strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--deep);
  font-size: 1.2rem;
}

@media (max-width: 980px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.3rem;
  }

  .hero,
  .proof,
  .geo-section,
  .cta {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .city-grid,
  .faq-list,
  .teaser-grid,
  .article-grid,
  .video-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .photo-grid .photo-large {
    grid-column: span 2;
    grid-row: auto;
  }

  .process-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 0.9rem 1rem;
  }

  .brand small {
    display: none;
  }

  nav {
    gap: 0.6rem;
    font-size: 0.86rem;
  }

  nav a {
    white-space: nowrap;
  }

  .hero {
    min-height: unset;
    padding: 2.2rem 1rem 1rem;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.2rem, 10.8vw, 2.72rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
  }

  .hero-lead {
    font-size: 1rem;
    line-height: 1.85;
  }

  .hero-card {
    border-radius: 1.6rem;
  }

  .brand-photo img {
    height: 8.8rem;
  }

  .card-top strong {
    font-size: 1.45rem;
  }

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

  .section,
  .cta {
    margin-right: 0.8rem;
    margin-left: 0.8rem;
    padding: 1.25rem;
    border-radius: 1.5rem;
  }

  .service-grid,
  .city-grid,
  .faq-list,
  .teaser-grid,
  .article-grid,
  .process-list,
  .video-grid,
  .photo-grid {
    grid-template-columns: 1fr;
  }

  .photo-grid .photo-large {
    grid-column: auto;
  }

  .process-list li {
    min-height: unset;
  }

  .geo-panel {
    width: 100%;
  }

  .cta {
    text-align: left;
  }

  .article-page,
  .knowledge-page {
    padding: 0.8rem;
  }

  .article-hero h1 {
    max-width: 100%;
    font-size: clamp(2rem, 10vw, 2.7rem);
  }
}