:root {
  --stone-50: #fafaf9;
  --stone-100: #f5f5f4;
  --stone-200: #e7e5e4;
  --stone-300: #d6d3d1;
  --stone-400: #a8a29e;
  --stone-500: #78716c;
  --stone-600: #57534e;
  --stone-700: #44403c;
  --stone-800: #292524;
  --stone-900: #1c1917;
  --stone-950: #0f0f0f;
  --container-width: 1240px;
  --section-y: 96px;
  --radius-sm: 2px;
  --transition-fast: 0.25s ease;
  --transition-mid: 0.45s ease;
  --shadow-soft: 0 12px 40px rgba(28, 25, 23, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--stone-800);
  background: var(--stone-50);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

button {
  border: 0;
  background: none;
  cursor: pointer;
}

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

p,
h1,
h2,
h3,
h4 {
  margin: 0;
}

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

.section {
  padding: var(--section-y) 0;
}

.section-head {
  text-align: center;
  margin-bottom: 52px;
}

.section-head-small {
  margin-bottom: 36px;
}

.section-title,
.section-title-sm,
.hero-title,
.modal-title,
.about-quote {
  font-family: "Noto Serif SC", "Songti SC", serif;
}

.section-title {
  font-size: clamp(32px, 4vw, 46px);
  color: var(--stone-900);
  margin-bottom: 12px;
  line-height: 1.2;
}

.section-title-sm {
  font-size: clamp(24px, 3vw, 34px);
  color: var(--stone-800);
}

.section-line {
  width: 52px;
  height: 2px;
  background: var(--stone-300);
  margin: 0 auto;
}

.section-subtitle {
  margin-top: 14px;
  color: var(--stone-500);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
}

.site-header {
  position: relative;
}

.nav {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  z-index: 80;
  color: #fff;
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), backdrop-filter var(--transition-fast);
}

.nav.is-scrolled {
  background: rgba(250, 250, 249, 0.9);
  color: var(--stone-900);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 14px rgba(28, 25, 23, 0.06);
}

.nav-inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  outline: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border: 1px solid currentColor;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
}

.brand:hover .brand-icon {
  background: currentColor;
  color: var(--stone-50);
}

.nav:not(.is-scrolled) .brand:hover .brand-icon {
  color: var(--stone-900);
}

.brand-text {
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.18em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-link {
  position: relative;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding-bottom: 4px;
  opacity: 0.95;
  transition: opacity var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  opacity: 0.65;
}

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

.nav-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: border-color var(--transition-fast);
}

.nav.is-scrolled .nav-toggle {
  border-color: var(--stone-300);
}

.nav-toggle span {
  width: 18px;
  height: 1px;
  background: currentColor;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 80px;
  left: 0;
  width: 100%;
  min-height: calc(100vh - 80px);
  background: var(--stone-50);
  border-top: 1px solid var(--stone-200);
  box-shadow: 0 16px 40px rgba(28, 25, 23, 0.08);
  padding: 30px 26px;
}

.mobile-menu.is-open {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-link {
  padding: 12px;
  text-align: center;
  font-size: 30px;
  color: var(--stone-900);
  font-family: "Noto Serif SC", serif;
}

.hero {
  position: relative;
  min-height: min(100vh, 920px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--stone-900);
}

.hero-slides,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  object-fit: contain;
  transition: opacity 1s ease;
}

.hero-slide.is-active {
  opacity: 1;
  animation: slowZoom 20s linear infinite alternate;
}

.hero-overlay {
  background: linear-gradient(to bottom, rgba(10, 10, 10, 0.28), rgba(10, 10, 10, 0.42));
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding-top: 64px;
}

.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.34em;
  font-size: clamp(5.5px, 0.7vw, 7.5px);
  margin-bottom: 14px;
}

.hero-title {
  font-size: clamp(22px, 4.5vw, 64px);
  line-height: 1.1;
  margin-bottom: 22px;
}

.hero-subtitle {
  margin: 0 auto 36px;
  max-width: 720px;
  font-size: clamp(7.5px, 1.05vw, 11px);
  line-height: 1.8;
  font-weight: 300;
}

.hero-scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: 24px;
  width: 1px;
  height: 72px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0));
  transform: translateX(-50%);
  animation: bounceLine 1.8s ease-in-out infinite;
}

.reveal {
  opacity: 0;
  animation: fadeInUp 1s ease forwards;
}

.delay-1 {
  animation-delay: 0.12s;
}

.delay-2 {
  animation-delay: 0.28s;
}

.delay-3 {
  animation-delay: 0.44s;
}

.delay-4 {
  animation-delay: 0.62s;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  padding: 12px 30px;
  font-size: 6px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-light {
  border-color: rgba(255, 255, 255, 0.9);
  color: #fff;
  font-size: 8px;
}

.btn-light:hover {
  background: #fff;
  color: var(--stone-900);
}

.btn-ghost {
  border-color: var(--stone-300);
  color: var(--stone-500);
}

.btn-ghost:hover {
  border-color: var(--stone-800);
  color: var(--stone-800);
  background: #fff;
}

.btn-dark {
  border-color: var(--stone-800);
  color: var(--stone-800);
}

.btn-dark:hover {
  background: var(--stone-800);
  color: #fff;
}

.btn-submit {
  width: 100%;
  background: #fff;
  color: #000;
  font-weight: 500;
  border-color: #fff;
  padding-top: 14px;
  padding-bottom: 14px;
}

.btn-submit:hover {
  background: var(--stone-200);
  border-color: var(--stone-200);
}

.center-row {
  display: flex;
  justify-content: center;
  margin-top: 52px;
}

.center-row .is-hidden {
  display: none;
}

.portfolio {
  background: var(--stone-50);
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 34px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.tab-btn {
  padding-bottom: 7px;
  border-bottom: 2px solid transparent;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--stone-400);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--stone-700);
}

.tab-btn.is-active {
  color: var(--stone-900);
  border-color: var(--stone-900);
}

.tab-panel.is-hidden {
  display: none;
}

.featured-grid {
  columns: 2;
  column-gap: 14px;
}

.featured-item {
  break-inside: avoid;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  content-visibility: auto;
  contain-intrinsic-size: 320px 460px;
}

.media-frame {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(145deg, #f2f2f2, #ecebe9);
}

.ratio-portrait {
  aspect-ratio: 4 / 5;
}

.ratio-landscape {
  aspect-ratio: 3 / 2;
}

.ratio-square {
  aspect-ratio: 1 / 1;
}

.featured-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.featured-item:hover img {
  transform: scale(1.05);
}

.featured-mask,
.case-mask {
  position: absolute;
  inset: 0;
  pointer-events: none;
  transition: background-color var(--transition-mid), opacity var(--transition-mid);
}

.featured-mask {
  background: rgba(0, 0, 0, 0);
}

.featured-item:hover .featured-mask {
  background: rgba(0, 0, 0, 0.12);
}

.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.case-card {
  margin-bottom: 0;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  border-radius: var(--radius-sm);
  content-visibility: auto;
  contain-intrinsic-size: 360px 520px;
}

.case-cover {
  aspect-ratio: 4 / 5;
}

.case-cover img {
  filter: none;
  transition: transform 0.8s ease;
}

.case-card:hover .case-cover img {
  transform: scale(1.06);
}

.case-mask {
  background: rgba(28, 25, 23, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  opacity: 0;
  pointer-events: none;
}

.case-card:hover .case-mask {
  opacity: 1;
  background: rgba(28, 25, 23, 0.45);
}

.case-info {
  transform: translateY(14px);
  transition: transform 0.55s ease;
  color: #fff;
  padding: 18px;
}

.case-card:hover .case-info {
  transform: translateY(0);
}

.case-date {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 10px;
}

.case-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 10px;
  font-family: "Noto Serif SC", serif;
}

.case-couple {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 20px;
}

.case-cta {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.9);
  padding: 10px 20px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.testimonials {
  margin-top: 94px;
  border-top: 1px solid var(--stone-200);
  padding-top: 78px;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.testimonial-card {
  background: var(--stone-50);
  border: 1px solid var(--stone-100);
  padding: 34px 26px;
  text-align: center;
  display: flex;
  flex-direction: column;
  min-height: 320px;
}

.quote-mark {
  font-size: 58px;
  line-height: 1;
  color: var(--stone-300);
  margin-bottom: 12px;
  font-family: "Noto Serif SC", serif;
}

.testimonial-card p {
  color: var(--stone-600);
  font-family: "Noto Serif SC", serif;
  line-height: 1.9;
  font-style: italic;
  margin-bottom: 28px;
  flex: 1;
}

.testimonial-meta {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  color: var(--stone-900);
}

.testimonial-loc {
  margin-top: 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.17em;
  color: var(--stone-400);
}

.about {
  background: #fff;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.about-photo-wrap {
  position: relative;
}

.about-photo-border {
  position: absolute;
  left: 16px;
  top: 16px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--stone-200);
}

.about-photo {
  aspect-ratio: 1 / 1;
  position: relative;
  z-index: 1;
}

.about-photo img {
  filter: none;
}

.about-content {
  text-align: left;
}

.about-quote {
  margin-bottom: 28px;
  color: var(--stone-500);
  font-size: 26px;
  line-height: 1.45;
}

.about-content p {
  color: var(--stone-600);
  line-height: 1.95;
  font-weight: 300;
  margin-top: 18px;
}

.seo-intro {
  background: #fff;
}

.seo-summary {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
  color: var(--stone-600);
  line-height: 1.9;
}

.seo-updated {
  margin-top: 14px;
  margin-bottom: 28px;
  text-align: center;
  color: var(--stone-400);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.seo-card {
  background: var(--stone-50);
  border: 1px solid var(--stone-200);
  padding: 18px;
}

.seo-card h3 {
  margin-bottom: 8px;
  color: var(--stone-900);
  font-size: 18px;
  font-family: "Noto Serif SC", serif;
}

.seo-card p {
  color: var(--stone-600);
  line-height: 1.85;
  font-size: 14px;
}

.seo-links {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.seo-faq {
  background: #fff;
  border-top: 1px solid var(--stone-200);
}

.seo-faq-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.seo-faq-item {
  border: 1px solid var(--stone-200);
  background: var(--stone-50);
  padding: 18px;
}

.seo-faq-item h3 {
  margin-bottom: 9px;
  color: var(--stone-900);
  font-size: 18px;
  font-family: "Noto Serif SC", serif;
}

.seo-faq-item p {
  color: var(--stone-600);
  line-height: 1.85;
  font-size: 14px;
}

.blog {
  background: var(--stone-100);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.blog-card {
  background: #fff;
  box-shadow: 0 2px 16px rgba(28, 25, 23, 0.05);
  cursor: pointer;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  content-visibility: auto;
  contain-intrinsic-size: 320px 440px;
}

.blog-card:hover {
  box-shadow: 0 12px 24px rgba(28, 25, 23, 0.12);
  transform: translateY(-1px);
}

.blog-cover {
  aspect-ratio: 3 / 2;
  background: transparent;
}

.blog-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
  transition: transform 0.7s ease;
}

.blog-card:hover .blog-cover img {
  transform: scale(1.06);
}

.blog-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-date {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--stone-400);
  margin-bottom: 10px;
}

.blog-title {
  font-family: "Noto Serif SC", serif;
  font-size: 27px;
  color: var(--stone-900);
  line-height: 1.35;
  margin-bottom: 14px;
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-title {
  color: var(--stone-600);
}

.blog-excerpt {
  color: var(--stone-500);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 22px;
  flex: 1;
}

.blog-link {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--stone-800);
  font-weight: 500;
}

.blog-card.is-hidden {
  display: none;
}

.contact {
  background: var(--stone-900);
  color: var(--stone-200);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: stretch;
}

.contact-intro {
  display: flex;
  flex-direction: column;
}

.contact-links {
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
}

.contact-title {
  color: #fff;
  margin-bottom: 22px;
}

.contact-text {
  color: var(--stone-400);
  line-height: 1.95;
  font-weight: 300;
  margin-bottom: 0;
}

.contact-note {
  margin-top: auto;
  color: var(--stone-400);
  line-height: 1.95;
  font-weight: 300;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: min(420px, 100%);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 15px;
}

.contact-item-btn {
  text-align: left;
  padding: 0;
}

.contact-item-btn:hover .contact-icon {
  border-color: #ef4444;
  color: #ef4444;
}

.contact-item-btn:hover .contact-label {
  color: #fca5a5;
}

.contact-item-btn:hover .contact-value {
  color: #fff1f2;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--stone-700);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--stone-400);
  font-size: 16px;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.contact-label {
  font-size: 11px;
  color: var(--stone-500);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  transition: color var(--transition-fast);
}

.contact-value {
  color: #fff;
  margin-top: 4px;
  transition: color var(--transition-fast);
}

.footer {
  background: var(--stone-950);
  border-top: 1px solid #171616;
  text-align: center;
  padding: 44px 12px;
}

.footer p {
  font-size: 11px;
  color: var(--stone-500);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.footer-links {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--stone-300);
}

.footer-links a:hover {
  color: #fff;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 12, 12, 0.72);
  backdrop-filter: blur(2px);
}

.modal-card {
  position: relative;
  width: min(980px, 100%);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: var(--stone-50);
  padding: 28px 30px 36px;
  box-shadow: var(--shadow-soft);
  z-index: 1;
}

.modal-card-wide {
  width: min(1120px, 100%);
}

.modal-card-small {
  width: min(420px, 100%);
}

.modal-close {
  position: sticky;
  top: 8px;
  margin-left: auto;
  display: block;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--stone-300);
  font-size: 28px;
  line-height: 30px;
  color: var(--stone-500);
  background: rgba(255, 255, 255, 0.88);
  z-index: 2;
}

.modal-close:hover {
  background: var(--stone-800);
  color: #fff;
  border-color: var(--stone-800);
}

.modal-header {
  text-align: center;
  margin: 8px auto 34px;
  max-width: 760px;
}

.modal-date {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 11px;
  color: var(--stone-500);
  margin-bottom: 9px;
}

.modal-title {
  color: var(--stone-900);
  font-size: clamp(30px, 4.6vw, 56px);
  margin-bottom: 16px;
  line-height: 1.2;
}

.modal-meta {
  color: var(--stone-600);
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.modal-desc {
  color: var(--stone-600);
  line-height: 1.9;
  font-family: "Noto Serif SC", serif;
  font-style: italic;
}

.modal-gallery {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.modal-gallery.is-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.modal-gallery-item {
  box-shadow: 0 4px 16px rgba(28, 25, 23, 0.07);
  background: #f4f2ef;
  content-visibility: auto;
  contain-intrinsic-size: 320px 420px;
}

.modal-gallery-button {
  display: block;
  width: 100%;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: zoom-in;
}

.modal-gallery-item img {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.modal-cover {
  aspect-ratio: 16 / 9;
  margin-top: 24px;
  background: transparent;
}

.modal-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.modal-article {
  max-width: 800px;
  margin: 0 auto;
  color: var(--stone-600);
  line-height: 1.95;
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
}

.modal-article p {
  margin-top: 0;
  margin-bottom: 18px;
}

.lazy-load-sentinel {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--stone-300);
  background: rgba(255, 255, 255, 0.9);
  color: var(--stone-700);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 11px;
  cursor: pointer;
  column-span: all;
  grid-column: 1 / -1;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 140;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.image-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.image-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 12, 12, 0.86);
  backdrop-filter: blur(4px);
}

.image-lightbox-card {
  position: relative;
  z-index: 1;
  width: min(1400px, calc(100vw - 40px));
  height: min(92vh, 980px);
  margin: 4vh auto;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 72px;
  align-items: center;
}

.image-lightbox-figure {
  margin: 0;
  text-align: center;
}

.image-lightbox-image {
  max-width: 100%;
  max-height: calc(92vh - 86px);
  margin: 0 auto;
  object-fit: contain;
}

.image-lightbox-meta {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.image-lightbox-close,
.image-lightbox-nav {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.image-lightbox-close {
  position: absolute;
  top: 0;
  right: 0;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  font-size: 30px;
  line-height: 30px;
}

.image-lightbox-nav {
  width: 52px;
  height: 52px;
  border-radius: 999px;
  font-size: 34px;
  line-height: 1;
  justify-self: center;
}

.image-lightbox-nav[disabled] {
  opacity: 0.35;
  cursor: default;
}

.modal-article h4 {
  font-size: 28px;
  color: var(--stone-900);
  margin: 34px 0 12px;
}

.qrcode-card {
  text-align: center;
}

.qrcode-frame {
  width: 200px;
  margin: 18px auto;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--stone-200);
  padding: 10px;
  background: #fff;
}

.qrcode-name {
  color: var(--stone-900);
  font-weight: 600;
}

.qrcode-tip {
  margin-top: 6px;
  color: var(--stone-400);
}

.is-hidden {
  display: none;
}

.img-fallback {
  object-fit: contain;
  background: #efeeec;
  padding: 14px;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slowZoom {
  from {
    transform: scale(1.04);
  }

  to {
    transform: scale(1.14);
  }
}

@keyframes bounceLine {
  0%,
  100% {
    transform: translate(-50%, 0);
  }

  50% {
    transform: translate(-50%, 10px);
  }
}

@media (min-width: 768px) {
  .hero-slide {
    object-fit: cover;
  }

  .featured-grid {
    columns: 3;
  }
}

@media (min-width: 1024px) {
  .featured-grid {
    columns: 4;
  }

  .cases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1023px) {
  .seo-grid,
  .seo-faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 900px) {
  :root {
    --section-y: 76px;
  }

  .container {
    width: min(var(--container-width), calc(100% - 34px));
  }

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .about-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .contact-links {
    justify-content: flex-start;
  }

  .contact-note {
    margin-top: 24px;
  }

  .about-content {
    text-align: center;
  }

  .modal-gallery.is-preview-grid {
    grid-template-columns: 1fr;
  }

  .image-lightbox-card {
    grid-template-columns: 1fr;
    width: calc(100vw - 24px);
    height: calc(100vh - 24px);
    margin: 12px auto;
  }

  .image-lightbox-nav {
    display: none;
  }

  .image-lightbox-image {
    max-height: calc(100vh - 116px);
  }

  .image-lightbox-meta {
    flex-direction: column;
    gap: 6px;
  }

}

@media (max-width: 640px) {
  .seo-grid,
  .seo-faq-list {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 78vh;
  }

  .hero-subtitle {
    font-size: 7.5px;
    line-height: 1.7;
    margin-bottom: 28px;
  }

  .btn {
    padding: 11px 22px;
    letter-spacing: 0.16em;
  }

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

  .modal {
    padding: 14px;
  }

  .modal-card {
    max-height: calc(100vh - 28px);
    padding: 18px 16px 24px;
  }

  .modal-article {
    font-size: 17px;
  }

  .modal-article h4 {
    font-size: 24px;
  }

  .section-subtitle {
    letter-spacing: 0.15em;
  }
}