:root {
  --ink: #1e2422;
  --muted: #66706d;
  --soft: #f5f1ea;
  --paper: #fffdf8;
  --porcelain: #f7faf6;
  --sage-soft: #e8efe8;
  --clay-soft: #f3e6dc;
  --linen-deep: #ece2d1;
  --line: #ded6c9;
  --green: #2f5847;
  --green-dark: #18372d;
  --clay: #a26042;
  --gold: #b99054;
  --shadow: 0 22px 70px rgba(30, 36, 34, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--porcelain) 38%, #fbf5ed 72%, var(--paper) 100%);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--green-dark);
  color: #fff;
  font-weight: 700;
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 18px clamp(20px, 5vw, 64px);
  color: #fff;
  transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(255, 253, 248, 0.94);
  color: var(--ink);
  box-shadow: 0 10px 30px rgba(30, 36, 34, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: "SimSun", "Songti SC", serif;
  font-weight: 700;
}

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

.brand strong {
  font-size: 17px;
  line-height: 1.2;
}

.brand small {
  color: currentColor;
  font-size: 12px;
  opacity: 0.75;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.site-nav a {
  position: relative;
  padding: 6px 0;
}

.site-nav a::after,
.text-link::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.2s ease;
}

.site-nav a:hover::after,
.text-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  color: #fff;
}

.hero-image,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-scrim {
  background:
    linear-gradient(90deg, rgba(14, 21, 18, 0.78), rgba(14, 21, 18, 0.34) 44%, rgba(14, 21, 18, 0.04)),
    linear-gradient(0deg, rgba(14, 21, 18, 0.22), transparent 46%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 820px;
  padding: 190px clamp(22px, 7vw, 92px) 150px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
h2 {
  margin: 0;
  font-family: "SimSun", "Songti SC", serif;
  font-weight: 700;
  line-height: 1.14;
}

.hero h1 {
  font-size: clamp(52px, 7vw, 92px);
}

.hero-lede {
  max-width: 660px;
  margin: 18px 0 26px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  background: var(--green);
  color: #fff;
}

.button-primary:hover {
  background: var(--green-dark);
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.58);
  color: #fff;
}

.hero-panel {
  position: absolute;
  right: clamp(20px, 5vw, 64px);
  bottom: 28px;
  left: clamp(20px, 5vw, 64px);
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.16);
  backdrop-filter: blur(18px);
}

.hero-panel div {
  padding: 16px 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-panel div:last-child {
  border-right: 0;
}

.hero-panel strong,
.hero-panel span {
  display: block;
}

.hero-panel strong {
  font-family: "SimSun", "Songti SC", serif;
  font-size: clamp(24px, 3vw, 36px);
}

.hero-panel span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.section,
.split-section,
.process-section,
.contact,
.trust-strip {
  padding: clamp(52px, 7vw, 86px) clamp(20px, 5vw, 64px);
}

.intro {
  background:
    linear-gradient(135deg, rgba(232, 239, 232, 0.9) 0%, rgba(255, 253, 248, 0.95) 44%, rgba(243, 230, 220, 0.82) 100%);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: #d7c9b8;
}

.trust-strip span {
  display: grid;
  min-height: 88px;
  place-items: center;
  padding: 16px;
  background: rgba(255, 253, 248, 0.88);
  color: var(--green-dark);
  font-weight: 700;
  text-align: center;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

.section-heading h2,
.split-copy h2,
.process-section h2,
.contact h2 {
  font-size: clamp(30px, 3.4vw, 46px);
}

.section-heading-wide {
  display: flex;
  align-items: end;
  justify-content: space-between;
  max-width: none;
  gap: 32px;
}

.section-heading-wide p:last-child {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
}

.intro-grid,
.service-grid,
.aftersale-grid,
.location-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.intro-grid article,
.service-grid article,
.aftersale-grid article,
.location-grid article,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
}

.intro-grid article {
  padding: 26px;
}

.number {
  color: var(--clay);
  font-family: "SimSun", "Songti SC", serif;
  font-size: 30px;
  font-weight: 700;
}

h3 {
  margin: 10px 0 10px;
  font-size: 21px;
  line-height: 1.35;
}

p {
  color: var(--muted);
  overflow-wrap: anywhere;
}

h1,
h2,
h3,
a,
strong,
span,
dd {
  overflow-wrap: anywhere;
}

.split-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
  background:
    linear-gradient(120deg, var(--linen-deep) 0%, var(--soft) 46%, var(--sage-soft) 100%);
}

.split-section-reverse {
  grid-template-columns: 1.22fr 0.78fr;
}

.split-section-reverse .split-copy {
  order: 2;
}

.split-section img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.split-copy p {
  max-width: 560px;
  margin: 14px 0 20px;
  font-size: 17px;
}

.text-link {
  position: relative;
  display: inline-block;
  color: var(--green);
  font-weight: 700;
}

.services {
  background:
    linear-gradient(180deg, #fbfff9 0%, var(--sage-soft) 100%);
}

.service-grid {
  grid-template-columns: repeat(6, 1fr);
}

.service-grid article {
  min-height: 176px;
  padding: 22px;
  background: rgba(255, 253, 248, 0.86);
}

.service-grid article:nth-child(1),
.service-grid article:nth-child(2) {
  grid-column: span 2;
}

.service-grid article:nth-child(n + 3) {
  grid-column: span 1;
}

.process-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 30px;
  background:
    linear-gradient(135deg, #1b2a25 0%, #2d4639 52%, #5d4a3d 100%);
  color: #fff;
}

.process-section p {
  color: rgba(255, 255, 255, 0.68);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  min-height: 142px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
}

.process-list span {
  color: var(--gold);
  font-family: "SimSun", "Songti SC", serif;
  font-weight: 700;
}

.process-list strong {
  display: block;
  margin: 10px 0 8px;
  font-size: 20px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.cases {
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--clay-soft) 100%);
}

.case-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 32px rgba(30, 36, 34, 0.06);
}

.case-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.case-card div {
  padding: 16px;
}

.case-card p {
  margin-bottom: 0;
}

.locations {
  background:
    linear-gradient(135deg, #f9fbf6 0%, #edf4ef 48%, #f7efe6 100%);
}

.aftersale {
  background:
    linear-gradient(135deg, var(--sage-soft) 0%, #f8f3ec 100%);
}

.aftersale-grid article {
  padding: 22px;
  background: rgba(255, 253, 248, 0.78);
}

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

.location-grid article {
  padding: 32px;
}

.location-grid span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--clay);
  font-weight: 700;
}

.location-grid h3 {
  margin-top: 0;
  font-size: clamp(22px, 2.4vw, 32px);
}

.location-grid a {
  display: inline-block;
  margin-top: 8px;
  color: var(--green);
  font-weight: 700;
}

.faq {
  background:
    linear-gradient(180deg, #fffdf8 0%, #f1eadf 100%);
}

.faq-list {
  display: grid;
  max-width: 980px;
  gap: 14px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 10px 28px rgba(30, 36, 34, 0.05);
}

.faq-list summary {
  cursor: pointer;
  padding: 20px 24px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
}

.faq-list p {
  margin: 0;
  padding: 0 24px 22px;
}

.contact {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 520px);
  gap: 28px;
  align-items: center;
  background:
    linear-gradient(135deg, var(--green-dark) 0%, #254f40 58%, #7a4b35 100%);
  color: #fff;
}

.contact p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.72);
}

.contact-card {
  padding: 22px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.contact-card dl {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
}

.contact-card div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-card dt {
  color: rgba(255, 255, 255, 0.68);
}

.contact-card dd {
  margin: 0;
  font-weight: 700;
  text-align: right;
}

.contact-card .button {
  width: 100%;
}

.wechat-qr {
  margin: 0 0 16px;
  padding: 12px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
}

.wechat-qr img {
  width: auto;
  max-width: 100%;
  max-height: 260px;
  margin: 0 auto;
  border-radius: 4px;
  object-fit: contain;
}

.wechat-qr figcaption {
  margin-top: 10px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 28px clamp(20px, 5vw, 64px);
  background: #141a18;
  color: rgba(255, 255, 255, 0.76);
}

.site-footer strong {
  color: #fff;
}

.sticky-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 15;
  display: flex;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  box-shadow: 0 18px 46px rgba(30, 36, 34, 0.24);
}

.sticky-cta a {
  min-width: 104px;
  padding: 13px 16px;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  text-align: center;
}

.sticky-cta a + a {
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  background: var(--clay);
}

@media (max-width: 1080px) {
  .service-grid,
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-grid article,
  .service-grid article:nth-child(1),
  .service-grid article:nth-child(2),
  .service-grid article:nth-child(n + 3) {
    grid-column: auto;
  }

  .case-grid {
    gap: 16px;
  }
}

@media (max-width: 820px) {
  .site-header {
    padding: 14px 20px;
  }

  .menu-button {
    display: inline-grid;
    gap: 5px;
    width: 42px;
    height: 42px;
    place-content: center;
    border: 1px solid currentColor;
    border-radius: 50%;
    background: transparent;
    color: inherit;
  }

  .menu-button span {
    display: block;
    width: 18px;
    height: 1px;
    background: currentColor;
  }

  .site-nav {
    position: absolute;
    top: 70px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 12px;
  }

  .hero {
    min-height: 720px;
  }

  .hero-scrim {
    background: linear-gradient(180deg, rgba(14, 21, 18, 0.62), rgba(14, 21, 18, 0.78));
  }

  .hero-content {
    max-width: none;
    padding: 128px 22px 250px;
  }

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

  .hero-panel div,
  .hero-panel div:last-child {
    padding: 14px 20px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  }

  .hero-panel div:last-child {
    border-bottom: 0;
  }

  .intro-grid,
  .aftersale-grid,
  .split-section,
  .split-section-reverse,
  .process-section,
  .location-grid,
  .contact,
  .trust-strip,
  .section-heading-wide {
    grid-template-columns: 1fr;
  }

  .section-heading-wide {
    display: grid;
    align-items: start;
  }

  .split-section-reverse .split-copy {
    order: 0;
  }

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

  .contact-card div {
    display: block;
  }

  .contact-card dd {
    margin-top: 4px;
    text-align: left;
  }
}

@media (max-width: 560px) {
  .brand {
    min-width: auto;
  }

  .brand small {
    display: none;
  }

  .hero h1 {
    font-size: 48px;
  }

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

  .intro-grid,
  .service-grid,
  .aftersale-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .section,
  .split-section,
  .process-section,
  .contact,
  .trust-strip {
    padding: 46px 20px;
  }

  .trust-strip {
    gap: 8px;
    padding-top: 14px;
    padding-bottom: 14px;
    background: var(--sage-soft);
  }

  .trust-strip span {
    min-height: 54px;
    border-radius: var(--radius);
  }

  .sticky-cta {
    right: 12px;
    bottom: 12px;
    left: 12px;
  }

  .sticky-cta a {
    flex: 1;
    min-width: 0;
  }

  .site-footer {
    padding-bottom: 86px;
  }
}