/* ============================================
   臻享保洁 - 企业官网共享样式
   设计风格：简约大气
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #0F7C8A;
  --primary-dark: #0A5560;
  --primary-light: #5BA8B5;
  --primary-bg: #EBF5F7;
  --accent: #C8A45C;
  --accent-dark: #A88A42;
  --text-dark: #1A2332;
  --text-body: #4A5568;
  --text-light: #8895A7;
  --bg-white: #FFFFFF;
  --bg-off: #F8F9FB;
  --border: #E2E8F0;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --max-width: 1200px;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ---------- Container ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Section ---------- */
.section {
  padding: 100px 0;
}

.section-sm {
  padding: 64px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-title p {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-title .divider {
  width: 56px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  margin: 0 auto 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  letter-spacing: 1px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15, 124, 138, 0.3);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

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

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

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(200, 164, 92, 0.3);
}

.btn-ghost {
  background: var(--primary-bg);
  color: var(--primary);
}

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

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.navbar.scrolled {
  padding: 12px 0;
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
}

.nav-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.nav-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo .logo-text span:first-child {
  font-size: 1.2rem;
}

.nav-logo .logo-text span:last-child {
  font-size: 0.65rem;
  color: var(--text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu a {
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-cta {
  padding: 10px 24px !important;
  background: var(--primary);
  color: #fff !important;
  border-radius: var(--radius-sm);
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(10, 85, 96, 0.88) 0%, rgba(15, 124, 138, 0.75) 50%, rgba(91, 168, 181, 0.6) 100%);
}

.hero-content {
  max-width: 650px;
  color: #fff;
  animation: fadeInUp 1s ease;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 30px;
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.hero-tagline::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.hero h1 .accent-text {
  color: var(--accent);
}

.hero-desc {
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 36px;
  opacity: 0.92;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  z-index: -2;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
                    radial-gradient(circle at 80% 30%, rgba(200,164,92,0.1) 0%, transparent 50%);
  z-index: -1;
}

.page-hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.1rem;
  opacity: 0.85;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.9rem;
  opacity: 0.7;
}

.breadcrumb a:hover {
  opacity: 1;
}

/* ---------- Stats ---------- */
.stats {
  background: var(--bg-off);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-card {
  text-align: center;
  padding: 32px 16px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
}

.stat-number .unit {
  font-size: 1.2rem;
  font-weight: 500;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-light);
  letter-spacing: 1px;
}

/* ---------- Service Cards ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 40px 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.8rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary);
}

.service-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary);
  transition: var(--transition);
}

.service-card:hover .service-icon svg {
  stroke: #fff;
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 16px;
}

.service-card .service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-card .service-tags span {
  font-size: 0.78rem;
  padding: 4px 12px;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 20px;
}

/* ---------- Why Choose Us ---------- */
.why-choose {
  background: var(--bg-off);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.why-card {
  text-align: center;
  padding: 40px 24px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.why-number {
  width: 48px;
  height: 48px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---------- CTA Section ---------- */
.cta-section {
  position: relative;
  padding: 80px 0;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  z-index: -1;
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 32px;
}

/* ---------- Partner Section ---------- */
.partners {
  padding: 60px 0;
  background: #fff;
}

.partners-marquee {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.partner-badge {
  padding: 12px 28px;
  border: 1px solid var(--border);
  border-radius: 30px;
  font-size: 0.95rem;
  color: var(--text-body);
  font-weight: 500;
  transition: var(--transition);
}

.partner-badge:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}

/* ---------- About Page ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-intro-text h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 24px;
  line-height: 1.4;
}

.about-intro-text p {
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-body);
}

.about-intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.about-intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* MVV Cards (Mission, Vision, Values) */
.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.mvv-card {
  padding: 48px 36px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--primary);
  transition: var(--transition);
}

.mvv-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.mvv-card .mvv-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.6rem;
}

.mvv-card h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.mvv-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.9;
}

.mvv-card .mvv-list {
  margin-top: 16px;
}

.mvv-card .mvv-list li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 0.92rem;
  color: var(--text-body);
}

.mvv-card .mvv-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 48px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
  text-align: right;
  margin-right: 50%;
  padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: 50%;
  padding-left: 40px;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 8px;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid var(--primary-bg);
  z-index: 1;
}

.timeline-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--text-light);
}

/* Values badges */
.values-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.value-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dark);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.value-badge:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}

.value-badge .value-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* ---------- Team Showcase ---------- */
.team-showcase {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: 40px;
}

.team-showcase img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.team-showcase:hover img {
  transform: scale(1.02);
}

.team-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.team-stat {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.team-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.team-stat .stat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.team-stat h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.team-stat p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Service Cases Large Gallery */
.case-feature {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-md);
  cursor: pointer;
}

.case-feature img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: var(--transition);
}

.case-feature:hover img {
  transform: scale(1.04);
}

.case-feature-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px 40px;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  color: #fff;
}

.case-feature-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.case-feature-content p {
  font-size: 0.95rem;
  opacity: 0.9;
}


.brand-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.brand-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.brand-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.brand-header {
  padding: 40px 36px 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
}

.brand-header.alt {
  background: linear-gradient(135deg, var(--accent), #D4B876);
}

.brand-header h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.brand-header p {
  font-size: 0.9rem;
  opacity: 0.85;
}

.brand-body {
  padding: 32px 36px;
}

.brand-body h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.brand-body .brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.brand-body .brand-tags span {
  padding: 6px 16px;
  background: var(--primary-bg);
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.85rem;
}

.brand-advantage {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg-off);
  border-radius: var(--radius-sm);
}

.brand-advantage .check-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

/* Quality Process */
.quality-process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.quality-step {
  position: relative;
  padding: 40px 32px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.quality-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.quality-step-num {
  position: absolute;
  top: -20px;
  left: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(15, 124, 138, 0.3);
}

.quality-step h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-dark);
  margin: 20px 0 16px;
}

.quality-step ul {
  margin-top: 12px;
}

.quality-step ul li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-body);
}

.quality-step ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary-light);
}

/* Cases Gallery */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  background: #fff;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.case-image {
  height: 220px;
  position: relative;
  overflow: hidden;
  background: var(--primary-bg);
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.case-card:hover .case-image img {
  transform: scale(1.08);
}

.case-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0) 50%, rgba(15,124,138,0.85) 100%);
}

.case-label {
  position: absolute;
  bottom: 16px;
  left: 20px;
  right: 20px;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  z-index: 1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.case-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(15, 124, 138, 0.9);
  color: #fff;
  font-size: 0.75rem;
  border-radius: 20px;
  z-index: 1;
  font-weight: 500;
}

.case-body {
  padding: 24px;
}

.case-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.case-body p {
  font-size: 0.88rem;
  color: var(--text-light);
}

/* ---------- Contact Page ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  color: #fff;
}

.contact-info-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-item .info-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-info-item .info-text h4 {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-bottom: 4px;
  font-weight: 400;
}

.contact-info-item .info-text p {
  font-size: 1.05rem;
  font-weight: 500;
}

.contact-form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.contact-form-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.contact-form-card .form-subtitle {
  color: var(--text-light);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--bg-off);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(15, 124, 138, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
}

/* Map section */
.map-section {
  margin-top: 60px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.map-section iframe {
  width: 100%;
  height: 380px;
  border: 0;
  display: block;
}

/* ---------- Footer ---------- */
.footer {
  background: #0F1B2D;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  margin-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
  font-size: 1.4rem;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-col h4 {
  font-size: 1rem;
  color: #fff;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-col ul li a:hover {
  color: var(--primary-light);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact-item span:first-child {
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 968px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid,
  .why-grid,
  .mvv-grid,
  .quality-process,
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .about-intro,
  .brand-comparison,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .timeline::before {
    left: 24px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: row;
  }

  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 60px;
    margin-right: 0;
    padding-left: 20px;
    padding-right: 0;
    text-align: left;
  }

  .timeline-dot {
    left: 24px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    box-shadow: var(--shadow-md);
  }

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

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: 64px 0;
  }

  .section-title h2 {
    font-size: 1.8rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .team-stats-row {
    grid-template-columns: 1fr;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-hero h1 {
    font-size: 2rem;
  }
}

/* ========================================
   QR Code / 扫码下单样式
   ======================================== */

/* 顶部扫码提示条 */
.qrcode-banner {
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 10px 0;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  z-index: 100;
}

.qrcode-banner span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.qrcode-banner .pulse-dot {
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

/* 重点二维码卡片（主引导） */
.qrcode-feature {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.qrcode-feature::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(15, 124, 138, 0.08), transparent);
  border-radius: 50%;
}

.qrcode-feature-text {
  position: relative;
  z-index: 1;
}

.qrcode-feature-text .label {
  display: inline-block;
  background: var(--primary-bg);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.qrcode-feature-text h2 {
  font-size: 1.9rem;
  color: var(--text);
  margin-bottom: 16px;
  font-weight: 700;
  line-height: 1.3;
}

.qrcode-feature-text p {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 14px;
}

.qrcode-feature-text .benefits {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}

.qrcode-feature-text .benefits li {
  padding: 6px 0;
  color: var(--text);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.qrcode-feature-text .benefits li::before {
  content: '\2713';
  width: 20px;
  height: 20px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.qrcode-feature-image {
  text-align: center;
  position: relative;
  z-index: 1;
}

.qrcode-feature-image .qrcode-frame {
  display: inline-block;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--primary-bg);
  position: relative;
}

.qrcode-feature-image .qrcode-frame::before,
.qrcode-feature-image .qrcode-frame::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  border: 3px solid var(--primary);
}

.qrcode-feature-image .qrcode-frame::before {
  top: 8px;
  left: 8px;
  border-right: none;
  border-bottom: none;
  border-top-left-radius: 8px;
}

.qrcode-feature-image .qrcode-frame::after {
  bottom: 8px;
  right: 8px;
  border-left: none;
  border-top: none;
  border-bottom-right-radius: 8px;
}

.qrcode-feature-image img {
  width: 240px;
  height: 240px;
  display: block;
  border-radius: 4px;
}

.qrcode-feature-image .qrcode-caption {
  margin-top: 16px;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
}

.qrcode-feature-image .qrcode-caption strong {
  color: var(--primary);
  font-size: 1.05rem;
}

/* 联系页内的内嵌二维码 */
.qrcode-inline {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: linear-gradient(135deg, var(--primary-bg) 0%, rgba(91, 168, 181, 0.15) 100%);
  border-radius: var(--radius-md);
  margin-top: 28px;
  border: 1px solid rgba(15, 124, 138, 0.15);
}

.qrcode-inline .qrcode-img {
  flex-shrink: 0;
  width: 130px;
  height: 130px;
  padding: 8px;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.qrcode-inline .qrcode-img img {
  width: 100%;
  height: 100%;
  display: block;
}

.qrcode-inline .qrcode-info h4 {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 8px;
  font-weight: 600;
}

.qrcode-inline .qrcode-info p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.qrcode-inline .qrcode-info .hint {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 6px;
}

/* 表单旁的二维码侧栏（用于联系页两栏布局） */
.contact-layout-with-qr {
  display: grid;
  grid-template-columns: 1fr 1.2fr 0.8fr;
  gap: 32px;
  align-items: start;
}

/* CTA按钮扫码文字 */
.cta-with-qrcode {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cta-with-qrcode::before {
  content: '\1F4F1';
  font-size: 1.1em;
  display: inline-block;
}

/* Footer 二维码列 */
.footer-qrcode {
  text-align: center;
}

.footer-qrcode-img {
  display: inline-block;
  padding: 10px;
  background: #fff;
  border-radius: var(--radius-sm);
  margin-top: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.footer-qrcode-img img {
  width: 110px;
  height: 110px;
  display: block;
}

.footer-qrcode-tip {
  margin-top: 10px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

/* 浮动二维码小卡片（侧边固定） */
.qrcode-floating {
  position: fixed;
  right: 24px;
  bottom: 80px;
  width: 180px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  padding: 16px;
  text-align: center;
  z-index: 50;
  transition: var(--transition);
  transform: translateY(0);
}

.qrcode-floating.hidden {
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
}

.qrcode-floating img {
  width: 100%;
  height: 140px;
  display: block;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary-bg);
}

.qrcode-floating .qrcode-title {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 600;
}

.qrcode-floating .qrcode-sub {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 4px;
}

.qrcode-floating .close-btn {
  position: absolute;
  top: 4px;
  right: 6px;
  width: 22px;
  height: 22px;
  background: rgba(0, 0, 0, 0.05);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1;
}

.qrcode-floating .close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text);
}

/* 响应式 */
@media (max-width: 992px) {
  .qrcode-feature {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    text-align: center;
  }

  .qrcode-feature-text h2 {
    font-size: 1.5rem;
  }

  .qrcode-feature-text .benefits {
    display: inline-block;
    text-align: left;
  }

  .qrcode-feature-image img {
    width: 200px;
    height: 200px;
  }

  .contact-layout-with-qr {
    grid-template-columns: 1fr;
  }

  .qrcode-floating {
    bottom: 70px;
    right: 12px;
    width: 140px;
  }

  .qrcode-floating img {
    height: 100px;
  }

  .qrcode-floating .qrcode-title {
    font-size: 0.78rem;
  }
}

@media (max-width: 576px) {
  .qrcode-banner {
    font-size: 0.8rem;
    padding: 8px 0;
  }

  .qrcode-feature {
    padding: 24px 16px;
  }

  .qrcode-feature-image img {
    width: 180px;
    height: 180px;
  }

  .qrcode-inline {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }

  .qrcode-inline .qrcode-img {
    width: 150px;
    height: 150px;
  }

  .qrcode-floating {
    display: none;
  }
}