/* ============================================
   NEXO ROOFING - 品牌：深蓝 + 白 + 金（宣传图风格）
   ============================================ */

:root {
  --navy: #0c2340;
  --navy-mid: #153a5c;
  --navy-deep: #081a2e;
  --navy-bright: #1e56b3;
  --gold: #c9a227;
  --gold-light: #e8c547;
  --gold-dim: rgba(201, 162, 39, 0.2);
  --bg: #d8e2f0;
  --bg-alt: #c8d4e8;
  --card: #e8eef8;
  --card-elevated: #dde5f2;
  --text: var(--navy);
  --text-muted: #4a6578;
  --text-light: #6b8299;
  --border: rgba(12, 35, 64, 0.12);
  --border-strong: rgba(12, 35, 64, 0.22);
  --accent: var(--navy-bright);
  --accent-hover: #2a6fd4;
  --accent-soft: rgba(30, 86, 179, 0.12);
  --gradient-btn: linear-gradient(135deg, var(--gold-light), var(--gold));
  --gradient-btn-hover: linear-gradient(135deg, #f5e08a, var(--gold-light));
  --gradient-text: linear-gradient(90deg, var(--navy) 0%, var(--navy-bright) 45%, var(--gold) 100%);
  --shadow-sm: 0 1px 3px rgba(12, 35, 64, 0.08);
  --shadow: 0 8px 30px rgba(12, 35, 64, 0.1);
  --shadow-lg: 0 16px 48px rgba(12, 35, 64, 0.14);
  --radius: 12px;
  --radius-lg: 18px;
  --green-dot: #16a34a;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --max-width: 1280px;
  --section-padding: clamp(3rem, 6vw, 5rem);
  --footer-bg: var(--navy-deep);
  --footer-text: #c8d4e4;
  --header-bg: rgba(232, 238, 248, 0.97);
  --black: var(--text);
  --black-soft: var(--text-muted);
  --silver: var(--text-muted);
  --silver-dim: var(--text-light);
  --silver-line: var(--border);
  --white: #ffffff;
}

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

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

/* ----- Navigation????+ ???????? ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.25s ease;
}
.site-header::before,
.site-header::after { display: none; }
.site-header .wrap { position: relative; z-index: 1; }
.site-header nav { position: relative; }

.site-header .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: var(--navy);
}
.logo img {
  height: 120px;
  width: auto;
  max-height: 120px;
  object-fit: contain;
  display: block;
}
.logo span { color: var(--text-muted); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links > li { position: relative; }
.nav-links > li.has-dropdown:hover .nav-dropdown,
.nav-links > li.has-dropdown .nav-dropdown.is-open { display: block; }

.nav-links a {
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 700;
  position: relative;
}
.nav-links a.active {
  color: var(--navy);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
}
.nav-links a:hover { color: var(--navy-bright); }

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease-out;
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  min-width: 220px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0;
  list-style: none;
  margin: 0;
  z-index: 10;
  box-shadow: var(--shadow-lg);
  animation: dropdownFade 0.2s ease;
}
@keyframes dropdownFade {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.nav-dropdown a {
  display: block;
  padding: 0.5rem 1rem;
  text-transform: none;
  font-size: 0.9rem;
  border-bottom: none;
  color: var(--navy);
}
.nav-dropdown a:hover { background: var(--accent-soft); color: var(--accent); }
.nav-dropdown li:last-child a { border-bottom: none; }

.nav-cta .btn-primary {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  background: var(--gradient-btn);
  border: none;
  box-shadow: var(--shadow);
}
.nav-cta .btn-primary:hover {
  background: var(--gradient-btn-hover);
  color: var(--navy-deep);
}

.nav-toggle {
  display: none;
  width: 28px;
  height: 22px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
}
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  display: block;
  height: 2px;
  background: var(--navy);
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--navy);
}
@media (max-width: 900px) {
  .nav-cta .btn-primary { padding: 0.5rem 0.75rem; font-size: 0.75rem; }
}
@media (max-width: 600px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: none;
    box-shadow: var(--shadow-lg);
  }
  .nav-links.is-open { display: flex; }
  .nav-links > li { border-bottom: 1px solid var(--border); }
  .nav-links > li:last-child { border-bottom: 0; }
  .nav-links > li.has-dropdown .nav-dropdown {
    position: static;
    display: none;
    margin: 0;
    border: none;
    padding-left: 1rem;
    background: var(--bg-alt);
  }
  .nav-links > li.has-dropdown .nav-dropdown.is-open { display: block; }
  .nav-links a { padding: 0.75rem 0; display: block; }
  .nav-dropdown a { padding: 0.5rem 0; }
  .nav-cta { margin-top: 0.5rem; }
  .nav-cta .btn-primary { width: 100%; text-align: center; }
}

/* ----- Hero????????+ ?? + ?? + ????+ ????+ ????+ ??????----- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: left;
  padding: calc(120px + 2rem) 1.5rem 5rem;
  overflow: hidden;
  /* ?????????????? hero-metal-roof.png.jpg */
  background: url("../images/hero-metal-roof.png.jpg") center/cover no-repeat;
  background-color: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  /* 左侧明亮、右侧透出屋顶图（宣传图风格） */
  background: linear-gradient(
    to right,
    rgba(216, 226, 240, 0.96) 0%,
    rgba(216, 226, 240, 0.82) 38%,
    rgba(200, 212, 232, 0.52) 72%,
    rgba(200, 212, 232, 0.18) 100%
  );
  pointer-events: none;
}

.hero-inner {
  max-width: 48rem;
  position: relative;
  z-index: 1;
  margin-right: auto;
  margin-left: 1.5rem;
}
@media (min-width: 768px) {
  .hero-inner { margin-left: 2rem; }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  margin-bottom: 2rem;
  background: rgba(232, 238, 248, 0.94);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 9999px;
  font-size: 0.875rem;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
}
.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--green-dot);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  margin: 0 0 1.5rem;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.02em;
  line-height: 1.15;
}
.hero h1 .gradient-text {
  color: transparent;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero .subtitle {
  margin: 0 0 2rem;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  font-weight: 400;
  max-width: 36rem;
  line-height: 1.6;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.hero-cta-row .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gradient-btn);
  border: none;
  box-shadow: var(--shadow-lg);
}
.hero-cta-row .btn-primary:hover {
  background: var(--gradient-btn-hover);
  transform: translateY(-2px) scale(1.02);
}
.hero-cta-row .btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.85);
  border: 2px solid var(--navy);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.hero-cta-row .btn-outline:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hero-trust-item svg {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--navy-bright);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease-in-out infinite;
}
.hero-scroll-indicator svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--navy-mid);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

.hero.hero-sm {
  min-height: 40vh;
  padding-top: calc(120px + 2rem);
  text-align: center;
}
.hero.hero-sm .hero-inner { margin-left: auto; margin-right: auto; }
.hero.hero-sm .hero-badge { margin-left: auto; margin-right: auto; }
.hero.hero-sm .hero-trust-row { justify-content: center; }
.hero-trust {
  margin-top: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-light);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ----- Section label + gradient heading??????----- */
.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.h2-gradient span.gradient-text {
  color: transparent;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
}

/* ----- About + Stats (Home) ----- */
.about-section {
  padding: var(--section-padding) 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.about-section .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.about-section h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.about-section .about-text {
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1rem;
  color: var(--text-muted);
}
.stats-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
}
.stat-item {
  text-align: center;
  min-width: 100px;
  padding: 1rem 1.25rem;
  background: var(--card-elevated);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}
.stat-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.stat-item::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    radial-gradient(circle at 15% 0%, rgba(201, 162, 39, 0.18), transparent 55%),
    radial-gradient(circle at 85% 120%, rgba(30, 86, 179, 0.08), transparent 55%);
  opacity: 1;
  pointer-events: none;
}
.stat-item .num {
  display: block;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}
.stat-item .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* ----- Services grid (Home) - ???????? + ???? ----- */
.services-grid-section {
  padding: var(--section-padding) 1.5rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.services-grid-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(12, 35, 64, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(12, 35, 64, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.services-grid-section .wrap { max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }
.services-grid-section .section-label { text-align: center; }
.services-grid-section .wrap > h2 {
  text-align: center;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  padding-bottom: 0;
  border-bottom: none;
}
.services-grid-section .section-intro {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
  font-size: 1rem;
  color: var(--text-muted);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.service-card {
  background: linear-gradient(135deg, var(--card-elevated) 0%, var(--card) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.25s, box-shadow 0.25s;
}
.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(245,214,138,0.18) 0%, transparent 55%),
    linear-gradient(315deg, rgba(212,212,212,0.12) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.25s;
}
.service-card:hover { border-color: var(--border-strong); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-card:hover::after { opacity: 1; }
.service-card-icon {
  width: 3.5rem;
  height: 3.5rem;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--navy-mid), var(--navy));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s;
}
.service-card:hover .service-card-icon { transform: scale(1.1); }
.service-card-icon svg { width: 1.75rem; height: 1.75rem; color: #fff; }
.service-card h3 { margin: 0 0 0.5rem; font-size: 1.25rem; font-weight: 600; color: var(--text); position: relative; z-index: 1; }
.service-card p { margin: 0; font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; position: relative; z-index: 1; }
.service-card a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}
.service-card a:hover { color: var(--text); }
.service-card a svg { width: 1.25rem; height: 1.25rem; transition: transform 0.2s; }
.service-card a:hover svg { transform: translateX(4px); }
.services-grid-section .section-cta { text-align: center; margin-top: 2rem; }
.services-grid-section .section-cta .btn-primary {
  background: var(--gradient-btn);
  border: none;
  padding: 1rem 2.5rem;
  box-shadow: var(--shadow);
}
.services-grid-section .section-cta .btn-primary:hover { background: var(--gradient-btn-hover); }

/* ----- Service spotlight (Shingle / Gutter, home) ----- */
.service-spotlight-section {
  padding: var(--section-padding) 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}
.service-spotlight-section.spotlight-alt {
  background: var(--bg-alt);
}
.service-spotlight-section .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
}
.spotlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.spotlight-grid.spotlight-reverse {
  direction: rtl;
}
.spotlight-grid.spotlight-reverse > * {
  direction: ltr;
}
.spotlight-content h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gold);
}
.spotlight-content .spotlight-tagline {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy-bright);
}
.spotlight-content p {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.spotlight-content p:last-of-type {
  margin-bottom: 0;
}
.spotlight-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
}
.spotlight-list li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.spotlight-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 2px rgba(201, 162, 39, 0.35);
}
.spotlight-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  background: var(--bg);
  min-height: 280px;
}
.spotlight-visual img,
.spotlight-visual video,
.spotlight-visual .spotlight-video {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
  max-height: 420px;
  object-fit: cover;
  background: #000;
}
.spotlight-content .btn-primary {
  margin-top: 1.25rem;
}

/* ----- Image placeholder (awaiting client assets) ----- */
.image-placeholder {
  min-height: 280px;
  min-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  background: linear-gradient(145deg, rgba(12, 35, 64, 0.06), rgba(12, 35, 64, 0.02));
  border: 2px dashed var(--border-strong);
  border-radius: inherit;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}
.image-placeholder strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--navy);
  font-size: 1rem;
}
.block-image .image-placeholder.image-placeholder--block {
  min-height: 300px;
  border-radius: var(--radius);
}

/* ----- Metal pillar: thumbnail row (home) ----- */
.pillar-photo-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.75rem;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}
.pillar-thumb {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.pillar-thumb:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.pillar-thumb img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}
.pillar-thumb span {
  display: block;
  padding: 0.5rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--navy);
  background: var(--card-elevated);
}
.service-spotlight-section .pillar-photo-row {
  margin-top: 2rem;
}

@media (max-width: 768px) {
  .pillar-photo-row {
    grid-template-columns: 1fr;
 }
  .pillar-thumb img {
    height: 180px;
  }
}

/* ----- Scroll reveal (section fade-up) ----- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Stagger children (e.g. service cards) */
.reveal.reveal-stagger .service-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.45s ease-out, transform 0.45s ease-out, box-shadow 0.25s ease, border-color 0.2s ease;
}
.reveal.reveal-stagger.is-visible .service-card {
  opacity: 1;
  transform: translateY(0);
}
.reveal.reveal-stagger .service-card:nth-child(1) { transition-delay: 0.08s; }
.reveal.reveal-stagger .service-card:nth-child(2) { transition-delay: 0.16s; }
.reveal.reveal-stagger .service-card:nth-child(3) { transition-delay: 0.24s; }
.reveal.reveal-stagger .service-card:nth-child(4) { transition-delay: 0.32s; }
.reveal.reveal-stagger .service-card:nth-child(5) { transition-delay: 0.4s; }
.reveal.reveal-stagger .service-card:nth-child(6) { transition-delay: 0.48s; }

/* ----- Service areas (cities) - ???????? + ???? ----- */
.areas-section {
  padding: var(--section-padding) 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.areas-section .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.areas-section .areas-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--navy-bright), var(--navy));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.areas-section .areas-icon svg {
  width: 2rem;
  height: 2rem;
  color: #fff;
}
.areas-section h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.areas-section .areas-intro {
  max-width: 36rem;
  margin: 0 auto 2rem;
  font-size: 1rem;
  color: var(--text-muted);
}
.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
  max-width: 42rem;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}
.areas-grid li {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--card-elevated) 0%, var(--card) 100%);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
.areas-grid li:hover {
  border-color: var(--border-strong);
  color: var(--text);
  box-shadow: var(--shadow);
}
.areas-grid li::after { display: none; }
.areas-section .areas-note {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.areas-section .areas-note a {
  color: var(--text-muted);
  text-decoration: underline;
}
.areas-section .areas-note a:hover { color: var(--text); }

/* ----- Materials page ----- */
.materials-intro {
  padding-bottom: 0.5rem;
  background: var(--card);
}
.material-main-title {
  margin: 0 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gold);
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.material-lead {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 720px;
}
.profile-cards { padding-top: 0; background: var(--bg); }
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 0;
}
.profile-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transform: translateY(0) scale(1);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease-out,
              transform 0.25s ease-out,
              box-shadow 0.25s ease-out;
}
.profile-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-lg);
}
.profile-card-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  min-height: 180px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.profile-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.profile-card-body { padding: 1.5rem; }
.profile-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.profile-tagline {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
}
.profile-card-body p:last-child {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.block-image-placeholder {
  min-height: 220px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.block-image-placeholder img { display: none; }

/* Hero fallback when no image */
.hero.no-img {
  background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 50%);
}

/* ----- Estimate form ----- */
.form-section {
  padding: var(--section-padding) 1.5rem;
  background: var(--card);
  border-radius: var(--radius-lg);
  max-width: 520px;
  margin: 0 auto 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.form-wrap { max-width: 480px; margin: 0 auto; }
.estimate-form label {
  display: block;
  margin: 1rem 0 0.35rem;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}
.estimate-form label:first-of-type { margin-top: 0; }
.estimate-form input,
.estimate-form select,
.estimate-form textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  font: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.estimate-form input:focus,
.estimate-form select:focus,
.estimate-form textarea:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.estimate-form input::placeholder,
.estimate-form textarea::placeholder { color: var(--text-light); }
.estimate-form textarea { resize: vertical; min-height: 120px; }
.estimate-form .btn-primary { width: 100%; margin-top: 1.25rem; }
.form-note {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
  text-align: center;
}
.form-note a { color: var(--accent); }

.form-result {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  line-height: 1.4;
  display: none;
}
.form-result.is-pending,
.form-result.is-success,
.form-result.is-error { display: block; }
.form-result.is-pending {
  background: rgba(10, 31, 68, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.form-result.is-success {
  background: rgba(34, 139, 34, 0.08);
  color: #1f6b1f;
  border: 1px solid rgba(34, 139, 34, 0.3);
}
.form-result.is-error {
  background: rgba(200, 35, 35, 0.06);
  color: #a02020;
  border: 1px solid rgba(200, 35, 35, 0.3);
}

/* ----- Section blocks ----- */
.section {
  padding: var(--section-padding) 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: var(--section-padding) 0;
  border-bottom: 1px solid var(--border);
}

.section-block:last-of-type { border-bottom: none; }

.section-block.reverse {
  direction: rtl;
}

.section-block.reverse > * {
  direction: ltr;
}

.section-block .block-image {
  min-height: 280px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.section-block .block-image img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  max-height: 460px;
  object-fit: cover;
}

.section-block .block-content { padding: 0 0.5rem; }

.section-block h2 {
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  border-bottom: 2px solid var(--gold);
}

.section-block .seo-title {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.section-block p {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--text-muted);
}

.section-block p:last-child { margin-bottom: 0; }

/* Tags / labels */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.tag {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-light);
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  background: var(--bg);
  border-radius: 999px;
}

/* ----- Centered section (no image) ----- */
.section-center {
  text-align: center;
  padding: var(--section-padding) 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.section-center .wrap {
  max-width: 720px;
  margin: 0 auto;
}

.section-center h2 {
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}

.section-center p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted);
}

/* ----- Specialized list ----- */
.specialized-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  text-align: left;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.specialized-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  color: var(--text-muted);
}

.specialized-list li:last-child { border-bottom: none; }

.specialized-list li::before {
  content: "\2014 ";
  color: var(--silver-dim);
  margin-right: 0.25rem;
}
.specialized-list.materials-list li::before { content: ""; margin: 0; }
.specialized-list.materials-list a { color: var(--accent); }
.specialized-list.materials-list a:hover { color: var(--accent-hover); }

/* ----- Service area ----- */
.service-area {
  background: var(--bg-alt);
  padding: var(--section-padding) 1.5rem;
  border-bottom: 1px solid var(--border);
}

.service-area .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.service-area h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.hero h1 { position: relative; }
.hero.hero-sm h1::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gradient-text);
  margin: 0.75rem auto 0;
  border-radius: 2px;
}

.service-area p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted);
}

/* ----- CTA????????????----- */
.cta-block {
  padding: var(--section-padding) 1.5rem;
  text-align: center;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
  border-top: 3px solid var(--gold);
}

.cta-block .wrap { max-width: 560px; margin: 0 auto; }

.cta-block h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.02em;
}
.cta-block .btn-primary {
  margin-top: 0.25rem;
  background: var(--gradient-btn);
  border: none;
  box-shadow: var(--shadow-lg);
}
.cta-block .btn-primary:hover { background: var(--gradient-btn-hover); color: var(--navy-deep); }

.cta-block .cta-desc { margin: 0 0 1.5rem; font-size: 1rem; color: rgba(255, 255, 255, 0.88); }

.cta-contact { margin: 1rem 0 1.5rem; font-size: 1.05rem; color: rgba(255, 255, 255, 0.85); }
.cta-contact a { color: var(--gold-light); font-weight: 600; }
.cta-contact a:hover { color: #ffffff; }
.cta-contact span { margin: 0 0.5rem; color: rgba(255, 255, 255, 0.5); }

.btn-primary {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--navy-deep);
  background: var(--gradient-btn);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s, color 0.2s;
}

.btn-primary:hover {
  background: var(--gradient-btn-hover);
  color: var(--navy-deep);
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

/* ----- Map / Location ----- */
.map-section {
  padding: 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.map-section .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--section-padding) 1.5rem 0;
}
.map-section h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  text-align: center;
}
.map-section .map-desc {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 1.5rem;
  font-size: 1rem;
  color: var(--text-muted);
}
.map-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  margin-top: 1rem;
  min-height: 320px;
  background: var(--card-elevated);
}
.map-wrapper iframe {
  display: block;
  width: 100%;
  height: 380px;
  border: 0;
}
.map-address {
  padding: 1rem 1.5rem;
  background: var(--card-elevated);
  font-size: 0.95rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
}
.map-address a { color: var(--text); font-weight: 500; }
.map-address a:hover { color: var(--text-muted); }

/* ----- Footer????????+ ???? ----- */
.site-footer {
  padding: 2.5rem 1.5rem 1.5rem;
  border-top: 3px solid var(--gold);
  font-size: 0.85rem;
  color: var(--footer-text);
  background: var(--footer-bg);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 2rem;
  text-align: left;
  margin-bottom: 2rem;
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}
.footer-brand .logo-footer {
  display: block;
  margin-bottom: 1rem;
}
.footer-brand .logo-footer img { height: 3.25rem; width: auto; max-height: 3.25rem; object-fit: contain; }
.footer-brand p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--footer-text);
  line-height: 1.5;
  max-width: 260px;
}
.footer-col h4 {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.02em;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.4rem; }
.footer-col a { color: var(--footer-text); font-size: 0.9rem; }
.footer-col a:hover { color: var(--gold-light); }
.footer-bottom {
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.footer-bottom p { margin: 0; font-size: 0.85rem; color: rgba(255, 255, 255, 0.55); }
.footer-bottom-links { display: flex; gap: 1rem; font-size: 0.85rem; }
.footer-bottom-links a { color: rgba(255, 255, 255, 0.55); }
.footer-bottom-links a:hover { color: var(--gold-light); }
/* Legacy single-row footer links (if used) */
.footer-links {
  margin-bottom: 0.75rem;
}
.footer-links a {
  color: var(--text-muted);
  margin: 0 0.75rem;
  font-size: 0.9rem;
}
.footer-links a:hover { color: var(--accent); }
.site-footer p { margin: 0; }

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .section-block {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    direction: ltr;
  }

  .section-block.reverse { direction: ltr; }

  .section-block .block-image {
    min-height: 220px;
  }

  .spotlight-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    direction: ltr;
  }
  .spotlight-grid.spotlight-reverse {
    direction: ltr;
  }
  .spotlight-visual {
    min-height: 220px;
  }

  .nav-links { gap: 1.25rem; }
}

@media (max-width: 480px) {
  .logo img { height: 62px; max-height: 62px; }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
  }
}

/* ----- Shingle page: Included checklist (2-column) ----- */
.included-section {
  padding: var(--section-padding) 1.5rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.included-section .wrap { max-width: var(--max-width); margin: 0 auto; }
.included-section .section-label { text-align: center; }
.included-section h2 {
  text-align: center;
  margin: 0.5rem 0 0.75rem;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.included-section .section-intro {
  max-width: 680px;
  margin: 0 auto 2.25rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
}
.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}
.checklist-grid li {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.15rem;
  background: var(--card-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.5;
  transition: border-color 0.2s, transform 0.2s;
}
.checklist-grid li:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.checklist-grid li::before {
  content: "";
  flex: 0 0 1.35rem;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: 0.1rem;
  border-radius: 50%;
  background:
    linear-gradient(135deg, var(--gold) 0%, var(--gold-deep, var(--accent)) 100%) center/0.75rem 0.75rem no-repeat,
    var(--navy);
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>"),
    linear-gradient(135deg, var(--navy-mid, var(--navy)) 0%, var(--navy) 100%);
  background-size: 0.9rem 0.9rem, cover;
  background-position: center, center;
  background-repeat: no-repeat;
}
.checklist-grid li strong { color: var(--text); font-weight: 600; }
.checklist-grid li em {
  display: block;
  margin-top: 0.3rem;
  font-style: normal;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ----- Shingle page: Pricing callout ----- */
.pricing-note {
  padding: calc(var(--section-padding) * 0.7) 1.5rem;
  background: var(--bg);
}
.pricing-note .wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 2.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.pricing-note h2 {
  margin: 0 0 0.6rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}
.pricing-note p {
  margin: 0 0 0.6rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}
.pricing-note p:last-child { margin-bottom: 0; }
.pricing-note strong { color: var(--text); }

/* ----- Shingle page: Warranty duo ----- */
.warranty-section {
  padding: var(--section-padding) 1.5rem;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
  border-top: 3px solid var(--gold);
  border-bottom: 3px solid var(--gold);
}
.warranty-section .wrap { max-width: var(--max-width); margin: 0 auto; text-align: center; }
.warranty-section .section-label { color: rgba(255,255,255,0.7); }
.warranty-section h2 {
  margin: 0.5rem 0 2rem;
  color: #fff;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.warranty-duo {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto 1.5rem;
}
.warranty-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  text-align: left;
  transition: border-color 0.2s, transform 0.2s;
}
.warranty-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}
.warranty-card .warranty-num {
  display: inline-block;
  font-size: 2.4rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 0.25rem;
}
.warranty-card h3 {
  margin: 0.4rem 0 0.65rem;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.warranty-card p {
  margin: 0;
  color: rgba(255,255,255,0.78);
  font-size: 0.95rem;
  line-height: 1.6;
}
.warranty-footnote {
  margin: 1.25rem auto 0;
  max-width: 720px;
  color: rgba(255,255,255,0.72);
  font-size: 0.9rem;
  font-style: italic;
}

/* ----- Shingle page: Brand grid (4 text-only cards) ----- */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  max-width: 960px;
  margin: 0 auto;
}
.brand-card {
  position: relative;
  background: linear-gradient(135deg, var(--card-elevated) 0%, var(--card) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.75rem 1.5rem;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.brand-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.brand-card .brand-tag {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  background: var(--gradient-btn);
  color: #fff;
  border-radius: 999px;
}
.brand-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}
.brand-card .brand-origin {
  display: block;
  margin-bottom: 0.65rem;
  font-size: 0.78rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}
.brand-card p {
  margin: 0 0 0.9rem;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.55;
}
.brand-card .brand-warranty {
  display: inline-block;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.7rem;
  width: 100%;
}
.brand-card .brand-warranty strong { color: var(--text); }

@media (max-width: 720px) {
  .checklist-grid { grid-template-columns: 1fr; }
  .warranty-duo { grid-template-columns: 1fr; }
  .brand-grid { grid-template-columns: 1fr; }
  .pricing-note .wrap { padding: 1.5rem 1.25rem; }
}

/* ----- Gutter page: Material Advantage pillars ----- */
.advantage-section {
  padding: var(--section-padding) 1.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.advantage-section .wrap { max-width: var(--max-width); margin: 0 auto; text-align: center; }
.advantage-section .section-label { text-align: center; }
.advantage-section h2 {
  margin: 0.5rem 0 0.75rem;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.advantage-section .section-intro {
  max-width: 680px;
  margin: 0 auto 2.5rem;
  color: var(--text-muted);
  font-size: 1rem;
}
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1040px;
  margin: 0 auto;
  text-align: left;
}
.advantage-card {
  position: relative;
  background: linear-gradient(135deg, var(--card-elevated) 0%, var(--card) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: border-color 0.2s, transform 0.25s, box-shadow 0.25s;
  overflow: hidden;
}
.advantage-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 0%, rgba(201,162,39,0.10), transparent 55%);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}
.advantage-card:hover { border-color: var(--border-strong); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.advantage-card:hover::after { opacity: 1; }
.advantage-icon {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}
.advantage-icon svg { width: 1.55rem; height: 1.55rem; color: var(--navy-deep, var(--navy)); }
.advantage-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  position: relative;
  z-index: 1;
}
.advantage-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* ----- Gutter page: Scenario tiers ----- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 1040px;
  margin: 0 auto;
}
.scenario-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.85rem 1.75rem 1.65rem;
  transition: border-color 0.2s, transform 0.2s;
}
.scenario-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.scenario-card.is-featured { border-color: var(--gold); box-shadow: 0 10px 30px -12px rgba(201,162,39,0.35); }
.scenario-tier {
  display: inline-block;
  margin-bottom: 0.85rem;
  padding: 0.35rem 0.75rem;
  background: var(--navy-mid, var(--navy));
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 999px;
}
.scenario-card.is-featured .scenario-tier {
  background: var(--gradient-btn);
}
.scenario-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}
.scenario-card .scenario-desc {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}
.scenario-card ul {
  list-style: none;
  margin: 0 0 0.9rem;
  padding: 0;
}
.scenario-card ul li {
  position: relative;
  padding: 0.3rem 0 0.3rem 1.25rem;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.45;
  border-bottom: 1px dashed var(--border);
}
.scenario-card ul li:last-child { border-bottom: none; }
.scenario-card ul li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.75rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--gold);
}
.scenario-card .scenario-pricing {
  display: block;
  margin-top: 0.35rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}
.scenario-note {
  max-width: 720px;
  margin: 2rem auto 0;
  padding: 1rem 1.25rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-left: 3px solid var(--gold);
  background: var(--bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.scenario-note strong { color: var(--text); }

/* ----- Gutter page: CTA fine-print line ----- */
.cta-fine-print {
  margin-top: 1.25rem;
  color: rgba(255,255,255,0.55);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

/* ----- Gutter page: Full-width photo strip ----- */
.photo-strip {
  position: relative;
  background: var(--navy-deep, var(--navy));
  overflow: hidden;
}
.photo-strip img {
  display: block;
  width: 100%;
  height: clamp(260px, 45vw, 520px);
  object-fit: cover;
  object-position: center;
}
.photo-strip .photo-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.25rem 1.5rem;
  color: #fff;
  background: linear-gradient(180deg, transparent 0%, rgba(7,17,37,0.65) 60%, rgba(7,17,37,0.82) 100%);
  text-align: center;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.photo-strip .photo-caption strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
  color: #fff;
}

@media (max-width: 860px) {
  .advantage-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   HERO KEN BURNS (homepage Plan 2) — slow zoom + crossfade slideshow
   ============================================================ */
.hero.hero-kb {
  background-color: #081a2e;
  background-image: none;
  color: #fff;
  overflow: hidden;
}

/* Dark gradient overlay on top of slides for text contrast */
.hero.hero-kb::before {
  z-index: 2;
  background: linear-gradient(
    to right,
    rgba(6, 18, 36, 0.78) 0%,
    rgba(6, 18, 36, 0.58) 42%,
    rgba(6, 18, 36, 0.32) 78%,
    rgba(6, 18, 36, 0.22) 100%
  );
}

/* Subtle bottom vignette to help the scroll indicator stand out */
.hero.hero-kb::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 30%;
  background: linear-gradient(to bottom, rgba(6, 18, 36, 0) 0%, rgba(6, 18, 36, 0.55) 100%);
  z-index: 2;
  pointer-events: none;
}

/* The slideshow stage */
.hero-kb-stage {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.kb-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  will-change: transform;
}

/* Solo slide — single cinematic image with continuous breathing zoom + pan */
.kb-slide-solo {
  animation: kbBreathe 40s ease-in-out infinite alternate;
  transform-origin: 65% 55%; /* Keep the house (right side) roughly anchored during zoom */
}

@keyframes kbBreathe {
  0%   { transform: scale(1.02) translate(0%, 0%); }
  100% { transform: scale(1.14) translate(-1.2%, -1%); }
}

/* Ensure content sits above overlay */
.hero.hero-kb .hero-inner {
  position: relative;
  z-index: 3;
}

/* Text styling for dark background */
.hero.hero-kb h1 {
  color: #fff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.45);
}
.hero.hero-kb h1 .gradient-text {
  background: linear-gradient(90deg, #ffffff 0%, #ffe4a0 55%, var(--gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero.hero-kb .subtitle {
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.35);
}

/* Badge — glass effect on dark bg */
.hero.hero-kb .hero-badge {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
}

/* Primary button keeps its gold gradient — boost shadow for depth */
.hero.hero-kb .hero-cta-row .btn-primary {
  box-shadow: 0 10px 32px rgba(201, 162, 39, 0.4);
}

/* Outline button — glass style on dark bg */
.hero.hero-kb .hero-cta-row .btn-outline {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}
.hero.hero-kb .hero-cta-row .btn-outline:hover {
  background: #fff;
  border-color: #fff;
  color: var(--navy);
}

/* Trust row */
.hero.hero-kb .hero-trust-row {
  color: rgba(255, 255, 255, 0.9);
}
.hero.hero-kb .hero-trust-item svg {
  color: var(--gold-light);
}

/* Scroll indicator — white on dark */
.hero.hero-kb .hero-scroll-indicator svg {
  color: rgba(255, 255, 255, 0.8);
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.35));
}

/* Accessibility: users who prefer reduced motion see a static image */
@media (prefers-reduced-motion: reduce) {
  .kb-slide {
    animation: none;
    transform: scale(1.05);
  }
}

/* ============================================================
   MOBILE OPTIMIZATION (≤960px → ≤480px) — 全站移动端深度适配
   ============================================================ */

/* ----- 全局：iOS 防止横屏文字自动放大 + 启用 safe-area + 防 X 轴溢出 ----- */
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  overflow-x: hidden;
  /* 给 iOS 刘海屏顶部/底部安全留白（仅在需要时生效） */
  padding-top: env(safe-area-inset-top, 0);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

/* ----- 升级汉堡按钮：动画 X 转换 + 44×44 触控热区 ----- */
.nav-toggle {
  width: 44px;
  height: 44px;
  position: relative;
  align-items: center;
  justify-content: center;
}
.nav-toggle::before,
.nav-toggle::after,
.nav-toggle span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease, top 0.3s ease;
}
.nav-toggle::before { top: 14px; }
.nav-toggle span    { top: 21px; }
.nav-toggle::after  { top: 28px; }
.nav-toggle.is-open::before {
  top: 21px;
  transform: rotate(45deg);
}
.nav-toggle.is-open span {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.is-open::after {
  top: 21px;
  transform: rotate(-45deg);
}

/* ----- 平板/手机宽度断点：导航在 ≤880px 就切换为汉堡菜单 ----- */
@media (max-width: 880px) {
  .site-header { padding: 0.5rem 1rem; }
  .logo img { height: 70px; max-height: 70px; }

  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1rem 1rem;
    display: none;
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav-links.is-open { display: flex; animation: navSlideDown 0.25s ease-out; }
  @keyframes navSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  .nav-links > li { border-bottom: 1px solid var(--border); }
  .nav-links > li:last-child { border-bottom: 0; }
  .nav-links > li.has-dropdown .nav-dropdown {
    position: static;
    display: none;
    margin: 0;
    border: none;
    padding: 0.25rem 0 0.25rem 1rem;
    background: transparent;
    box-shadow: none;
    animation: none;
  }
  .nav-links > li.has-dropdown .nav-dropdown.is-open { display: block; }
  .nav-links a {
    padding: 0.95rem 0.25rem;
    display: block;
    font-size: 0.95rem;
  }
  .nav-links a::after { display: none; }
  .nav-dropdown a { padding: 0.65rem 0; font-size: 0.9rem; }
  .nav-cta { margin-top: 0.5rem; border-bottom: 0 !important; }
  .nav-cta .btn-primary {
    width: 100%;
    text-align: center;
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
  }
}

/* ----- Hero (通用) 移动端：紧凑 padding + 全宽按钮 + 居中堆叠 ----- */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    /* 用 100svh 解决 iOS 地址栏问题；不支持时退回 90vh */
    min-height: 90vh;
    min-height: 100svh;
    padding: calc(86px + 1.5rem) 1.25rem 3rem;
  }
  .hero-inner {
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
    text-align: left;
  }
  .hero h1 {
    font-size: clamp(2rem, 8vw, 2.75rem);
    margin-bottom: 1rem;
    line-height: 1.18;
  }
  .hero .subtitle {
    font-size: clamp(0.95rem, 4vw, 1.05rem);
    margin-bottom: 1.5rem;
  }
  .hero-badge {
    margin-bottom: 1.25rem;
    padding: 0.4rem 0.85rem;
    font-size: 0.78rem;
  }
  .hero-cta-row {
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
  }
  .hero-cta-row .btn-primary,
  .hero-cta-row .btn-outline {
    width: 100%;
    justify-content: center;
    padding: 0.95rem 1rem;
    font-size: 0.95rem;
  }
  .hero-trust-row {
    gap: 0.6rem 1.25rem;
    font-size: 0.82rem;
  }
  .hero-trust-item svg { width: 1.05rem; height: 1.05rem; }
  .hero-scroll-indicator { display: none; }

  .hero.hero-sm {
    min-height: auto;
    padding: calc(86px + 1.5rem) 1.25rem 2.5rem;
  }
  .hero.hero-sm .hero-inner { text-align: center; }
}

/* ----- Hero KB (Ken Burns) 移动端：更强的暗色遮罩，提升文字可读性 ----- */
@media (max-width: 768px) {
  .hero.hero-kb::before {
    background: linear-gradient(
      to bottom,
      rgba(6, 18, 36, 0.55) 0%,
      rgba(6, 18, 36, 0.7) 60%,
      rgba(6, 18, 36, 0.85) 100%
    );
  }
  /* 移动端时减小缩放幅度，避免过度晃动 */
  @keyframes kbBreathe {
    0%   { transform: scale(1.04); }
    100% { transform: scale(1.12); }
  }
}

/* ----- 通用 Section padding 在移动端收紧 ----- */
@media (max-width: 768px) {
  :root {
    --section-padding: clamp(2.25rem, 8vw, 3.5rem);
  }
  .about-section,
  .services-grid-section,
  .service-spotlight-section,
  .areas-section,
  .cta-block,
  .form-section,
  .included-section,
  .pricing-note,
  .warranty-section,
  .advantage-section,
  .service-area,
  .section-center {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
  .map-section .wrap { padding-left: 1.25rem; padding-right: 1.25rem; }
}

/* ----- About / Stats: 紧凑栅格 ----- */
@media (max-width: 600px) {
  .stats-row { gap: 0.75rem; flex-direction: row; }
  .stat-item {
    flex: 1 1 0;
    min-width: 0;
    padding: 1rem 0.5rem;
  }
  .stat-item .num { font-size: 1.5rem; }
  .stat-item .label { font-size: 0.7rem; letter-spacing: 0.03em; }
}

/* ----- Spotlight (服务大块) 移动端：图片高度优化 + 标题对齐 ----- */
@media (max-width: 768px) {
  .spotlight-grid { gap: 1.25rem; }
  .spotlight-content h2 { font-size: 1.5rem; }
  .spotlight-content .spotlight-tagline { font-size: 0.98rem; }
  .spotlight-visual {
    min-height: 200px;
    max-height: 280px;
  }
  .spotlight-visual img {
    min-height: 200px;
    max-height: 280px;
  }
}

/* ----- Service cards 网格：手机单列 + 紧凑 ----- */
@media (max-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .service-card { padding: 1.4rem 1.25rem; }
  .service-card-icon {
    width: 2.75rem;
    height: 2.75rem;
    margin-bottom: 0.85rem;
  }
  .service-card-icon svg { width: 1.35rem; height: 1.35rem; }
  .service-card h3 { font-size: 1.1rem; }
  .service-card p { font-size: 0.9rem; }
}

/* ----- Pillar 缩略图行：保留之前 768px 的单列规则；进一步统一行高 ----- */
@media (max-width: 768px) {
  .pillar-thumb img { height: 160px; }
  .pillar-thumb span {
    padding: 0.55rem 0.75rem;
    font-size: 0.75rem;
  }
}

/* ----- Areas (城市) 网格：手机更小卡片 ----- */
@media (max-width: 600px) {
  .areas-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.65rem;
  }
  .areas-grid li {
    padding: 0.75rem 0.5rem;
    font-size: 0.85rem;
  }
  .areas-section .areas-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
  }
  .areas-section .areas-icon svg { width: 1.5rem; height: 1.5rem; }
}

/* ----- Map: 手机适当缩小高度 + 防 iframe 拦截 body 滑动 ----- */
@media (max-width: 600px) {
  .map-wrapper iframe { height: 300px; }
  .map-section .wrap { padding-top: 2.5rem; }
  .map-address {
    padding: 0.85rem 1rem;
    font-size: 0.85rem;
    line-height: 1.55;
  }
  .map-address a { display: inline-block; margin-top: 0.15rem; }
}

/* ----- CTA block 移动端：联系方式垂直堆叠 + 隐藏分隔线 ----- */
@media (max-width: 600px) {
  .cta-block .cta-desc { font-size: 0.95rem; }
  .cta-contact {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    font-size: 1rem;
    margin: 0.85rem 0 1.35rem;
  }
  .cta-contact span { display: none; }
  .cta-contact a {
    padding: 0.6rem 1rem;
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.14);
  }
  .cta-block .btn-primary { width: 100%; max-width: 320px; }
}

/* ----- 表单: iOS 防自动缩放 (input 字号 ≥16px) + 大触控区 ----- */
@media (max-width: 768px) {
  .form-section {
    padding: 1.75rem 1.25rem;
    margin: 0 0.75rem 2rem;
    max-width: none;
  }
  .estimate-form input,
  .estimate-form select,
  .estimate-form textarea {
    font-size: 16px; /* iOS 不会自动缩放 */
    padding: 0.9rem 1rem;
    min-height: 48px;
  }
  .estimate-form textarea { min-height: 130px; }
  .estimate-form .btn-primary {
    padding: 1rem 1rem;
    font-size: 0.95rem;
  }
  .form-note { font-size: 0.85rem; }
  .form-note a {
    display: inline-block;
    padding: 0.5rem 0;
    margin: 0 0.5rem;
  }
}

/* ----- Footer 移动端：左对齐、避免居中错乱 + 紧凑 ----- */
@media (max-width: 600px) {
  .site-footer { padding: 2rem 1.25rem 1rem; }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: left;
  }
  .footer-brand .logo-footer img { height: 2.75rem; max-height: 2.75rem; }
  .footer-brand p { max-width: none; }
  .footer-col h4 {
    margin-bottom: 0.5rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .footer-col li {
    margin-bottom: 0.55rem;
    font-size: 0.92rem;
  }
  .footer-col a { padding: 0.15rem 0; }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* ----- 通用 H2 标题在小屏更克制 ----- */
@media (max-width: 480px) {
  .about-section h2,
  .areas-section h2,
  .map-section h2,
  .cta-block h2,
  .service-spotlight-section h2,
  .services-grid-section .wrap > h2,
  .included-section h2,
  .warranty-section h2,
  .advantage-section h2 {
    font-size: clamp(1.4rem, 6vw, 1.7rem);
  }
}

/* ----- Shingle/Gutter 子页通用大块在窄屏堆叠 ----- */
@media (max-width: 600px) {
  .checklist-grid { gap: 0.6rem; }
  .checklist-grid li {
    padding: 0.85rem 0.95rem;
    font-size: 0.92rem;
  }
  .warranty-card { padding: 1.5rem 1.35rem; }
  .warranty-card .warranty-num { font-size: 2rem; }
  .scenario-card { padding: 1.5rem 1.35rem 1.35rem; }
  .scenario-card h3 { font-size: 1.05rem; }
  .brand-card { padding: 1.5rem 1.35rem 1.25rem; }
  .brand-card h3 { font-size: 1.1rem; }
  .advantage-card { padding: 1.5rem 1.25rem; }
  .advantage-card h3 { font-size: 1.05rem; }
}

/* ----- 触屏设备：禁用 hover 抬升动画 (避免点击残留高亮) ----- */
@media (hover: none) and (pointer: coarse) {
  .service-card:hover,
  .stat-item:hover,
  .pillar-thumb:hover,
  .areas-grid li:hover,
  .profile-card:hover,
  .scenario-card:hover,
  .brand-card:hover,
  .warranty-card:hover,
  .advantage-card:hover,
  .checklist-grid li:hover,
  .btn-primary:hover,
  .hero-cta-row .btn-primary:hover {
    transform: none;
  }
  /* 让链接点击有可见反馈但不依赖 hover */
  .service-card:active,
  .pillar-thumb:active,
  .areas-grid li:active,
  .scenario-card:active,
  .brand-card:active,
  .advantage-card:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
  }
  /* 移除 nav-link 下划线 hover 动画（触屏无意义） */
  .nav-links a::after { display: none; }
}

/* ----- Photo strip 全宽图：限制最大高度 ----- */
@media (max-width: 600px) {
  .photo-strip img {
    height: clamp(220px, 60vw, 320px);
  }
  .photo-strip .photo-caption {
    padding: 1rem 1.25rem;
    font-size: 0.88rem;
  }
  .photo-strip .photo-caption strong { font-size: 1rem; }
}

/* ============================================================
   MOBILE STICKY CTA BAR — 移动端底部一键拨号 + 报价快捷栏
   ============================================================ */
.mobile-cta-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: linear-gradient(180deg, rgba(8,26,46,0.95) 0%, rgba(8,26,46,1) 100%);
  border-top: 2px solid var(--gold);
  padding: 0.5rem 0.6rem calc(0.5rem + env(safe-area-inset-bottom, 0));
  box-shadow: 0 -8px 24px rgba(0,0,0,0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.mobile-cta-bar-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.mobile-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.85rem 0.5rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
  min-height: 48px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.mobile-cta-btn:active { transform: scale(0.97); opacity: 0.9; }
.mobile-cta-btn svg { width: 1.05rem; height: 1.05rem; flex-shrink: 0; }
.mobile-cta-call {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-color: rgba(255,255,255,0.22);
}
.mobile-cta-call:hover { color: #fff; }
.mobile-cta-quote {
  background: var(--gradient-btn);
  color: var(--navy-deep);
  box-shadow: 0 4px 14px rgba(201,162,39,0.35);
}
.mobile-cta-quote:hover { color: var(--navy-deep); }

/* 仅在窄屏显示 */
@media (max-width: 768px) {
  .mobile-cta-bar { display: block; }
  /* 给 body 增加底部 padding 避免内容被 CTA 栏遮住 */
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom, 0)); }
  /* 滚动指示器、回到顶部等不要被 CTA 栏遮挡 */
  .hero-scroll-indicator { bottom: calc(72px + 1rem); }
}
@media (max-width: 360px) {
  .mobile-cta-btn { font-size: 0.82rem; padding: 0.75rem 0.4rem; gap: 0.3rem; }
  .mobile-cta-btn svg { width: 0.95rem; height: 0.95rem; }
}

/* ============================================================
   移动端响应式硬保险 — 防溢出 + 字体微调
   桌面 max-width 1280px（:root 中定义），移动端容器自适应 100%
   ============================================================ */

/* 全局防 X 轴溢出（html/body 双层保险） */
html {
  overflow-x: hidden;
  max-width: 100vw;
}
body {
  max-width: 100vw;
}

/* 所有主内容容器强制不超出视窗 */
main,
section,
header,
footer,
.wrap,
.footer-inner,
.mobile-cta-bar {
  max-width: 100%;
}

/* 防止媒体/iframe/svg 撑破容器 */
img, video, iframe, svg, canvas {
  max-width: 100%;
}

/* 在 ≤880px（进入汉堡菜单断点）：取消 nav 的 relative 定位，
   让 .nav-links 的 position:absolute 相对于 .site-header (fixed, 满屏) 定位，
   菜单即可横跨整个视窗宽度 */
@media (max-width: 880px) {
  .site-header nav { position: static; }
  .site-header .wrap { position: static; }
  .nav-links {
    left: 0 !important;
    right: 0 !important;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
  }
  .nav-links a,
  .nav-dropdown a {
    white-space: normal;
    word-break: normal;
  }
}

/* ≤480px 手机：字号小幅回调避免窄屏溢出，容器保持 100% 满屏 */
@media (max-width: 480px) {
  html { font-size: 16px; }
  body { font-size: 1rem; }
  .wrap,
  .footer-inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* 底部固定 CTA 栏：无论视窗多宽都严格贴合 */
.mobile-cta-bar {
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
}
.mobile-cta-bar-inner {
  max-width: 100%;
  box-sizing: border-box;
}