/* 领航装饰 · 济南本地家装官网 */
:root {
  --ink: #1a1c1b;
  --ink-soft: #3a3f3c;
  --muted: #6b726e;
  --line: #e4e7e4;
  --paper: #f7f6f3;
  --paper-deep: #eceae4;
  --white: #ffffff;
  --forest: #2f4f45;
  --forest-deep: #243d36;
  --moss: #5a7a6c;
  --copper: #9a6b3f;
  --copper-soft: #c4a07a;
  --shadow: 0 12px 40px rgba(26, 28, 27, 0.08);
  --radius: 4px;
  --nav-h: 72px;
  --max: 1120px;
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

/* —— Top bar —— */
.topbar {
  background: var(--forest-deep);
  color: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.topbar .container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.topbar a:hover {
  color: #fff;
}

/* —— Nav —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 246, 243, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 24px;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.logo-mark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--forest);
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.logo-sub {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  padding: 8px 10px;
  font-size: 13px;
  color: var(--ink-soft);
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--forest);
  background: rgba(47, 79, 69, 0.08);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px !important;
  background: var(--forest) !important;
  color: #fff !important;
  font-size: 13px;
  border-radius: var(--radius);
}

.nav-cta:hover {
  background: var(--forest-deep) !important;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: transform 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

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

.btn-primary {
  background: var(--forest);
  color: #fff;
}

.btn-primary:hover {
  background: var(--forest-deep);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--forest);
  border: 1px solid var(--forest);
}

.btn-outline:hover {
  background: var(--forest);
  color: #fff;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h) - 36px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(26, 28, 27, 0.25) 0%, rgba(26, 28, 27, 0.72) 100%),
    url("https://images.unsplash.com/photo-1618221195710-dd6b41faaea6?auto=format&fit=crop&w=1920&q=80")
      center / cover no-repeat;
  transform: scale(1.04);
  animation: heroZoom 18s ease-out forwards;
}

@keyframes heroZoom {
  to {
    transform: scale(1);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
  padding: 0 0 72px;
  animation: fadeUp 0.9s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.brand-hero {
  font-family: var(--font-display);
  font-size: clamp(42px, 8vw, 72px);
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.05;
  margin-bottom: 18px;
}

.hero-tagline {
  font-size: clamp(16px, 2.4vw, 20px);
  font-weight: 400;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 28px;
  max-width: 36em;
}

.hero-tagline span {
  opacity: 0.55;
  margin: 0 6px;
}

/* —— Sections —— */
.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--white);
}

.section-dark {
  background: var(--forest-deep);
  color: #fff;
}

.section-head {
  margin-bottom: 48px;
  max-width: 640px;
}

.section-head.center {
  text-align: center;
  margin-inline: auto;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--copper);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-dark .eyebrow {
  color: var(--copper-soft);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.25;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--muted);
  font-size: 15px;
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

/* —— Intro —— */
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.stat {
  padding-top: 16px;
  border-top: 2px solid var(--forest);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--forest);
  line-height: 1.1;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
}

.intro-points {
  display: grid;
  gap: 14px;
}

.intro-points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  background: var(--paper);
  border-left: 3px solid var(--forest);
}

.intro-points strong {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
}

.intro-points span {
  font-size: 13px;
  color: var(--muted);
}

/* —— Services —— */
.service-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.service-item {
  position: relative;
  min-height: 220px;
  padding: 28px 22px;
  background: var(--paper-deep);
  overflow: hidden;
  transition: transform 0.35s ease, background 0.35s ease;
}

.service-item::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: var(--forest);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.service-item:hover {
  transform: translateY(-4px);
  background: var(--white);
  box-shadow: var(--shadow);
}

.service-item:hover::before {
  transform: scaleX(1);
}

.service-index {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--copper);
  letter-spacing: 0.12em;
  margin-bottom: 40px;
}

.service-item h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.service-item p {
  font-size: 13px;
  color: var(--muted);
}

/* —— Cases —— */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 13px;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--forest);
  background: var(--forest);
  color: #fff;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--white);
  overflow: hidden;
  transition: transform 0.35s ease;
}

.case-card:hover {
  transform: translateY(-4px);
}

.case-img {
  aspect-ratio: 4 / 3;
  background: var(--paper-deep) center / cover no-repeat;
  position: relative;
  overflow: hidden;
}

.case-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(26, 28, 27, 0.45));
  opacity: 0;
  transition: opacity 0.3s;
}

.case-card:hover .case-img::after {
  opacity: 1;
}

.case-body {
  padding: 18px 4px 8px;
}

.case-meta {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.case-body h3 {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.case-body p {
  font-size: 13px;
  color: var(--muted);
}

/* —— Craft —— */
.craft-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.craft-item {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--paper-deep) center / cover no-repeat;
}

.craft-item .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(26, 28, 27, 0.85));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: #fff;
  transition: background 0.35s;
}

.craft-item:hover .overlay {
  background: linear-gradient(180deg, transparent 10%, rgba(36, 61, 54, 0.92));
}

.craft-item h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}

.craft-item p {
  font-size: 13px;
  opacity: 0.85;
  transform: translateY(8px);
  opacity: 0;
  transition: all 0.35s ease;
}

.craft-item:hover p {
  transform: translateY(0);
  opacity: 0.9;
}

/* —— Reviews —— */
.review-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

.site-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.site-photos .big {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
  background: var(--paper-deep) center / cover no-repeat;
}

.site-photos .small {
  aspect-ratio: 4 / 3;
  background: var(--paper-deep) center / cover no-repeat;
}

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

.review {
  padding: 24px;
  background: var(--white);
  border-left: 3px solid var(--copper);
}

.review p {
  font-size: 14px;
  margin-bottom: 12px;
}

.review-author {
  font-size: 12px;
  color: var(--muted);
}

/* —— CTA band —— */
.cta-band {
  padding: 72px 0;
  background:
    linear-gradient(135deg, rgba(47, 79, 69, 0.94), rgba(36, 61, 54, 0.96)),
    url("https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1600&q=80")
      center / cover;
  color: #fff;
  text-align: center;
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.cta-band p {
  opacity: 0.85;
  margin-bottom: 28px;
}

.cta-band .btn-group {
  justify-content: center;
}

/* —— Page hero (inner) —— */
.page-hero {
  padding: 72px 0 56px;
  background:
    linear-gradient(135deg, #243d36 0%, #2f4f45 55%, #3a5e52 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.page-hero p {
  max-width: 520px;
  opacity: 0.82;
  font-size: 15px;
}

.breadcrumb {
  font-size: 12px;
  letter-spacing: 0.08em;
  opacity: 0.65;
  margin-bottom: 20px;
}

.breadcrumb a:hover {
  opacity: 1;
}

/* —— About —— */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.advantage {
  padding: 28px 24px;
  background: var(--white);
  border-top: 3px solid var(--forest);
}

.advantage h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.advantage p {
  font-size: 13px;
  color: var(--muted);
}

.photo-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.photo-strip div {
  aspect-ratio: 4 / 3;
  background: var(--paper-deep) center / cover no-repeat;
}

.honor-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.honor-tag {
  padding: 12px 20px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
}

/* —— Services detail —— */
.package-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.package {
  padding: 32px 28px;
  background: var(--white);
  border: 1px solid var(--line);
}

.package.featured {
  border-color: var(--forest);
  background: linear-gradient(180deg, #fff 0%, #f3f6f4 100%);
}

.package h3 {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.package .tag {
  display: inline-block;
  font-size: 12px;
  color: var(--copper);
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}

.package ul {
  display: grid;
  gap: 10px;
}

.package li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--ink-soft);
}

.package li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--forest);
  border-radius: 1px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
}

.process-step {
  padding: 24px 20px;
  background: var(--white);
  position: relative;
  counter-increment: step;
}

.process-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--forest);
  display: block;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.process-step h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--muted);
}

/* —— Pricing —— */
.price-blocks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.price-block {
  padding: 32px 28px;
  background: var(--white);
}

.price-block h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.price-block ul {
  display: grid;
  gap: 12px;
}

.price-block li {
  font-size: 14px;
  color: var(--ink-soft);
  padding-left: 14px;
  position: relative;
}

.price-block li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--forest);
  font-weight: 700;
}

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

.factor {
  padding: 28px 22px;
  background: var(--paper);
  text-align: center;
}

.factor h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 8px;
}

.factor p {
  font-size: 13px;
  color: var(--muted);
}

.notice {
  padding: 28px 32px;
  background: rgba(47, 79, 69, 0.08);
  border-left: 4px solid var(--forest);
  font-size: 15px;
}

/* —— Craft detail —— */
.craft-detail {
  display: grid;
  gap: 48px;
}

.craft-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.craft-row:nth-child(even) .craft-text {
  order: 2;
}

.craft-visual {
  aspect-ratio: 4 / 3;
  background: var(--paper-deep) center / cover no-repeat;
}

.craft-text h2 {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.craft-text p {
  color: var(--muted);
  margin-bottom: 16px;
}

.craft-text ul {
  display: grid;
  gap: 8px;
}

.craft-text li {
  font-size: 14px;
  padding-left: 14px;
  position: relative;
}

.craft-text li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 2px;
  background: var(--forest);
}

/* —— FAQ —— */
.faq-list {
  display: grid;
  gap: 12px;
  max-width: 800px;
  margin-inline: auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
}

.faq-q {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}

.faq-q::after {
  content: "+";
  font-size: 20px;
  color: var(--forest);
  flex-shrink: 0;
  transition: transform 0.25s;
}

.faq-item.open .faq-q::after {
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--muted);
  font-size: 14px;
}

.faq-item.open .faq-a {
  max-height: 240px;
  padding: 0 24px 20px;
}

/* —— Contact —— */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h2 {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.info-list {
  display: grid;
  gap: 20px;
  margin-bottom: 32px;
}

.info-list dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--copper);
  margin-bottom: 4px;
}

.info-list dd {
  font-size: 15px;
  color: var(--ink-soft);
}

.qr-hint {
  padding: 20px;
  background: var(--paper);
  font-size: 13px;
  color: var(--muted);
  border: 1px dashed var(--line);
  text-align: center;
}

.contact-form {
  padding: 36px 32px;
  background: var(--white);
  border: 1px solid var(--line);
}

.contact-form h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.contact-form > p {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.form-row {
  margin-bottom: 16px;
}

.form-row label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--ink-soft);
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s;
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  border-color: var(--forest);
  background: #fff;
}

.form-row textarea {
  min-height: 100px;
  resize: vertical;
}

.form-msg {
  display: none;
  margin-top: 12px;
  font-size: 13px;
  color: var(--forest);
}

.form-msg.show {
  display: block;
}

/* —— Footer —— */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
  padding: 56px 0 28px;
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand .logo-mark {
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand p {
  max-width: 280px;
  line-height: 1.8;
}

.footer-col h4 {
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  font-weight: 500;
}

.footer-col a {
  display: block;
  padding: 4px 0;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-size: 12px;
  opacity: 0.7;
}

/* —— Reveal animation —— */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* —— Responsive —— */
@media (max-width: 960px) {
  .service-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .case-grid,
  .craft-grid,
  .advantage-grid,
  .process-steps,
  .factors,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro-grid,
  .review-grid,
  .contact-grid,
  .craft-row,
  .package-grid,
  .price-blocks {
    grid-template-columns: 1fr;
  }

  .craft-row:nth-child(even) .craft-text {
    order: 0;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    gap: 2px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-cta {
    text-align: center;
    justify-content: center;
  }

  .service-grid,
  .case-grid,
  .craft-grid,
  .advantage-grid,
  .process-steps,
  .factors,
  .photo-strip,
  .footer-grid,
  .stat-row {
    grid-template-columns: 1fr;
  }

  .site-photos {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 70vh;
  }

  .brand-hero {
    letter-spacing: 0.06em;
  }

  .section {
    padding: 64px 0;
  }
}