:root {
  --paper: #f5f1e8;
  --paper-deep: #ebe5d8;
  --ink: #153c33;
  --ink-soft: #41645c;
  --gold: #b28a4a;
  --gold-light: #d8c295;
  --line: rgba(21, 60, 51, 0.16);
  --card: rgba(255, 253, 248, 0.62);
  --shadow: 0 24px 70px rgba(21, 60, 51, 0.08);
  --page-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 14%, rgba(216, 194, 149, 0.2), transparent 28rem),
    var(--paper);
  font-family: "Noto Serif SC", "Songti SC", "STSong", "Microsoft YaHei", serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: var(--paper);
  background: var(--ink);
  border-radius: 0.35rem;
  transform: translateY(-200%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: rgba(255, 253, 248, 0.94);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 36px rgba(21, 60, 51, 0.035);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  width: min(calc(100% - 3rem), var(--page-width));
  min-height: 82px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(1.5rem, 3.5vw, 4.5rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand-mark,
.footer-mark {
  display: inline-grid;
  place-items: center;
  width: 2.35rem;
  aspect-ratio: 1;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.1rem, 2.4vw, 2.2rem);
}

.nav-link {
  position: relative;
  padding: 1rem 0;
  color: var(--ink-soft);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.82rem;
  white-space: nowrap;
  text-decoration: none;
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.7rem;
  left: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--ink);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  min-height: 42px;
  padding: 0.65rem 1.1rem;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0.25rem;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  transition:
    color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.header-cta:hover,
.header-cta:focus-visible {
  color: var(--ink);
  background: transparent;
  transform: translateY(-1px);
}

.hero {
  position: relative;
  width: min(calc(100% - 3rem), var(--page-width));
  min-height: 680px;
  margin: 0 auto;
  padding: 7rem 0;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: clamp(3rem, 6vw, 6.5rem);
}

.hero,
.services,
.service-section {
  scroll-margin-top: 7rem;
}

.hero::after {
  content: "腿姐";
  position: absolute;
  top: 3.5rem;
  left: -0.09em;
  z-index: -1;
  color: rgba(21, 60, 51, 0.034);
  font-size: clamp(8rem, 16vw, 14rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.13em;
  white-space: nowrap;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 650px;
  animation: rise-in 800ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.eyebrow {
  margin: 0 0 1.75rem;
  color: var(--gold);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  margin: 0;
  font-size: clamp(3.1rem, 5.6vw, 5.4rem);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.055em;
}

h1 span {
  display: block;
}

.hero-description {
  max-width: 590px;
  margin: 2.2rem 0 2.4rem;
  color: var(--ink-soft);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1.04rem;
  line-height: 1.95;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  padding: 0.85rem 0.1rem;
  border-bottom: 1px solid var(--gold);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.primary-link span {
  transition: transform 180ms ease;
}

.primary-link:hover span,
.primary-link:focus-visible span {
  transform: translateY(0.2rem);
}

.hero-visual {
  position: relative;
  z-index: 1;
  margin: 0;
  animation: rise-in 850ms 140ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-visual::before {
  content: "";
  position: absolute;
  top: -1.2rem;
  right: -1.2rem;
  width: 46%;
  height: 42%;
  border-top: 1px solid var(--gold);
  border-right: 1px solid var(--gold);
  pointer-events: none;
}

.hero-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 10rem 10rem 0.35rem 0.35rem;
  object-fit: cover;
  object-position: 62% center;
  box-shadow: 0 30px 80px rgba(21, 60, 51, 0.18);
}

.visual-note {
  position: absolute;
  right: -1rem;
  bottom: 1.5rem;
  margin: 0;
  padding: 0.95rem 1.2rem;
  display: flex;
  gap: 0.85rem;
  color: var(--paper);
  background: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  box-shadow: 0 18px 40px rgba(21, 60, 51, 0.2);
}

.visual-note span + span::before {
  content: "·";
  margin-right: 0.85rem;
  color: var(--gold-light);
}

.services {
  background: #fffdf8;
}

.services-overview {
  padding: 7.5rem max(1.5rem, calc((100% - var(--page-width)) / 2));
  background: var(--ink);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 3rem;
}

.section-heading .eyebrow {
  color: var(--gold-light);
}

h2 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.04em;
}

.section-intro {
  max-width: 460px;
  margin: 0 0 0.35rem auto;
  color: rgba(245, 241, 232, 0.66);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.96rem;
  line-height: 1.9;
}

.service-list {
  display: block;
}

.service-section {
  padding: clamp(5rem, 9vw, 8.5rem) max(1.5rem, calc((100% - var(--page-width)) / 2));
}

.service-section--paper {
  color: var(--ink);
  background: #fffdf8;
}

.service-section--sage {
  color: var(--ink);
  background: #dfe8e1;
}

.service-section--dark {
  color: var(--paper);
  background: var(--ink);
}

.service-section--warm {
  color: var(--ink);
  background: var(--paper-deep);
}

.service-section-inner {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
}

.service-section--reverse .service-media {
  order: 2;
}

.service-media {
  position: relative;
  overflow: hidden;
  border-radius: 0.45rem;
  box-shadow: 0 26px 70px rgba(21, 60, 51, 0.14);
}

.service-media::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: inherit;
  pointer-events: none;
}

.service-media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.service-section:hover .service-media img {
  transform: scale(1.025);
}

.service-copy {
  max-width: 520px;
}

.service-kicker {
  margin: 0 0 1.25rem;
  color: var(--gold);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.service-kicker span {
  display: inline-block;
  margin-right: 0.8rem;
  color: inherit;
}

.service-copy h3 {
  margin: 0;
  font-size: clamp(2.4rem, 4.8vw, 4.2rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.045em;
}

.service-summary {
  max-width: 440px;
  margin: 1.5rem 0 2.3rem;
  color: var(--ink-soft);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.9;
}

.service-section--dark .service-summary {
  color: rgba(245, 241, 232, 0.68);
}

.service-items {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid currentColor;
  border-top-color: rgba(21, 60, 51, 0.18);
}

.service-section--dark .service-items {
  border-top-color: rgba(245, 241, 232, 0.2);
}

.service-items li {
  padding: 0.95rem 0;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.7rem;
  border-bottom: 1px solid rgba(21, 60, 51, 0.13);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.91rem;
  line-height: 1.65;
}

.service-section--dark .service-items li {
  color: rgba(245, 241, 232, 0.82);
  border-bottom-color: rgba(245, 241, 232, 0.15);
}

.service-items li > span {
  color: var(--gold);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.site-footer {
  width: min(calc(100% - 3rem), var(--page-width));
  min-height: 210px;
  margin: 0 auto;
  padding: 3.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  letter-spacing: 0.08em;
}

.footer-mark {
  width: 2rem;
  font-size: 0.82rem;
}

.footer-meta {
  max-width: 560px;
  display: grid;
  justify-items: end;
  gap: 0.6rem;
  text-align: right;
}

.legal-note,
.icp-link {
  margin: 0;
  color: var(--ink-soft);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.78rem;
  line-height: 1.8;
}

.icp-link {
  text-underline-offset: 0.25em;
  text-decoration-color: rgba(21, 60, 51, 0.35);
}

.icp-link:hover,
.icp-link:focus-visible {
  color: var(--ink);
  text-decoration-color: var(--gold);
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 5px;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .header-inner {
    gap: 1.5rem;
  }

  .brand-name {
    font-size: 0.95rem;
    letter-spacing: 0.07em;
  }

  .site-nav {
    gap: 1.15rem;
  }

  .nav-link {
    font-size: 0.76rem;
  }
}

@media (max-width: 820px) {
  html {
    scroll-padding-top: 8.5rem;
  }

  .header-inner {
    min-height: 122px;
    padding-top: 0.75rem;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    gap: 0.4rem 1rem;
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
  }

  .header-cta {
    grid-column: 2;
    grid-row: 1;
  }

  .site-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    padding: 0.1rem 0 0.5rem;
    justify-content: flex-start;
    gap: 1.6rem;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    padding: 0.65rem 0;
    font-size: 0.78rem;
  }

  .nav-link::after {
    bottom: 0.35rem;
  }

  .hero,
  .services,
  .service-section {
    scroll-margin-top: 8.5rem;
  }

  .hero {
    min-height: auto;
    padding: 5.5rem 0;
    grid-template-columns: 1fr;
    gap: 4.5rem;
  }

  .hero-content {
    max-width: 680px;
  }

  .hero-visual {
    width: min(100%, 620px);
    justify-self: end;
  }

  .hero-visual img {
    aspect-ratio: 4 / 3;
    border-radius: 8rem 8rem 0.35rem 0.35rem;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .section-intro {
    margin-left: 0;
  }

  .service-section-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .service-section--reverse .service-media {
    order: 0;
  }

  .service-copy {
    max-width: 650px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .footer-meta {
    justify-items: start;
    text-align: left;
  }
}

@media (max-width: 520px) {
  .header-inner,
  .hero,
  .site-footer {
    width: min(calc(100% - 2rem), var(--page-width));
  }

  .brand-name {
    font-size: 0.92rem;
    letter-spacing: 0.05em;
  }

  .brand-mark {
    width: 2.1rem;
  }

  .header-cta {
    min-height: 38px;
    padding: 0.55rem 0.75rem;
    font-size: 0.72rem;
  }

  .site-nav {
    gap: 1.35rem;
  }

  .hero {
    padding: 4.5rem 0;
    gap: 3.5rem;
  }

  .hero::after {
    top: 4rem;
    font-size: 8.5rem;
  }

  .hero-visual {
    width: calc(100% - 0.5rem);
  }

  .hero-visual::before {
    top: -0.75rem;
    right: -0.75rem;
  }

  .hero-visual img {
    aspect-ratio: 4 / 3.45;
    border-radius: 5rem 5rem 0.35rem 0.35rem;
  }

  .visual-note {
    right: -0.5rem;
    bottom: 1rem;
    padding: 0.75rem 0.85rem;
    gap: 0.55rem;
    font-size: 0.64rem;
  }

  .visual-note span + span::before {
    margin-right: 0.55rem;
  }

  h1 {
    font-size: clamp(2.65rem, 13vw, 3.75rem);
    line-height: 1.2;
  }

  .hero-description {
    margin-top: 1.8rem;
    font-size: 0.96rem;
  }

  .services {
    padding: 0;
  }

  .services-overview {
    padding-top: 5.5rem;
    padding-bottom: 5.5rem;
  }

  .service-section {
    padding: 4.5rem 1rem;
  }

  .service-section-inner {
    gap: 2.4rem;
  }

  .service-media {
    border-radius: 0.35rem;
  }

  .service-copy h3 {
    font-size: clamp(2.3rem, 13vw, 3.5rem);
  }

  .service-summary {
    margin-top: 1.15rem;
    margin-bottom: 1.8rem;
    font-size: 0.94rem;
  }

  .service-items li {
    grid-template-columns: 2rem minmax(0, 1fr);
    font-size: 0.87rem;
  }

  .site-footer {
    min-height: 220px;
    gap: 1.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}