/* ===========================
   顺辉智仪 - 现代化样式表
   =========================== */

/* CSS Variables */
:root {
  --color-primary: #1a5f9e;
  --color-primary-dark: #134a7d;
  --color-primary-light: #2b7fc7;
  --color-accent: #e62129;
  --color-accent-dark: #c01a21;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-muted: #94a3b8;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-warning: #f59e0b;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", monospace;

  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

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

/* ===========================
   Header
   =========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 2px 8px rgba(26, 95, 158, 0.2));
}

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

.company-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
}

.company-sub {
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.contact-label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.contact-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.contact-phone:hover {
  color: var(--color-primary);
}

.contact-phone svg {
  color: var(--color-primary);
}

/* Main Nav */
.main-nav {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  height: 52px;
}

.nav-list {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 52px;
  gap: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 36px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--color-accent);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.active::after,
.nav-link:hover::after {
  width: 60%;
}

/* Menu Toggle (mobile) */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

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

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  position: relative;
  min-height: 600px;
  padding: 160px 0 80px;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f1fb 50%, #f0f4ff 100%);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 95, 158, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 95, 158, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--color-primary-light);
  top: -100px;
  right: -50px;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: #6366f1;
  bottom: -50px;
  left: 10%;
  animation-delay: 3s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -20px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  background: rgba(26, 95, 158, 0.1);
  color: var(--color-primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid rgba(26, 95, 158, 0.15);
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 500px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26, 95, 158, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 95, 158, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Hero Visual */
.hero-visual {
  flex-shrink: 0;
  width: 380px;
}

.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
  transition: var(--transition);
}

.hero-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.hero-card-header {
  display: flex;
  gap: 8px;
  padding: 16px 20px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.hero-card-body {
  padding: 28px 24px;
}

.metric-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.metric-row:last-of-type {
  border-bottom: none;
}

.metric-icon {
  width: 48px;
  height: 48px;
  background: rgba(26, 95, 158, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.metric-info {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

.metric-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  font-family: var(--font-mono);
}

.metric-bar {
  margin-top: 20px;
  height: 6px;
  background: var(--color-bg-alt);
  border-radius: 100px;
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, #6366f1 100%);
  border-radius: 100px;
  animation: fillBar 2s ease-out;
}

@keyframes fillBar {
  from { width: 0; }
}

/* ===========================
   Stats Bar
   =========================== */
.stats-bar {
  padding: 48px 0;
  background: var(--color-bg-dark);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
}

.stat-suffix {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary-light);
}

.stat-label {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 8px;
}

/* ===========================
   Section General
   =========================== */
.section {
  padding: 80px 0;
}

.section-products {
  background: var(--color-bg);
}

.section-about {
  background: var(--color-bg-alt);
}

.section-areas {
  background: var(--color-bg);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-title.text-left {
  text-align: left;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ===========================
   Products
   =========================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.product-card.product-soon {
  opacity: 0.85;
}

.product-image {
  height: 220px;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2f7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 20px;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-card.product-soon .product-image {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.product-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.product-card:hover .product-placeholder {
  transform: scale(1.1);
}

.product-info {
  padding: 24px;
}

.product-category {
  display: inline-block;
  font-size: 12px;
  color: var(--color-primary);
  background: rgba(26, 95, 158, 0.08);
  padding: 4px 12px;
  border-radius: 100px;
  font-weight: 500;
  margin-bottom: 12px;
}

.product-card.product-soon .product-category {
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
}

.product-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.product-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.product-link:hover {
  gap: 12px;
  color: var(--color-primary-dark);
}

.product-soon-tag {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  padding: 6px 14px;
  border-radius: 100px;
  font-weight: 500;
}

/* ===========================
   About Section
   =========================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-badge-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 8px 30px rgba(26, 95, 158, 0.25);
}

.badge-icon-wrap {
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.badge-text {
  display: flex;
  flex-direction: column;
  color: #fff;
}

.badge-text strong {
  font-size: 18px;
}

.badge-text span {
  font-size: 13px;
  opacity: 0.8;
  margin-top: 2px;
}

.about-feature-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.about-feature-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-bg-alt);
}

.about-feature-card ul li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--color-text);
}

.check-icon {
  width: 24px;
  height: 24px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.about-content .section-tag {
  margin-bottom: 8px;
}

.about-lead {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 20px;
  margin-top: 16px;
}

.about-text {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-values {
  display: flex;
  gap: 32px;
  margin: 28px 0;
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.value-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.value-icon {
  width: 56px;
  height: 56px;
  background: rgba(26, 95, 158, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.value-item:hover .value-icon {
  background: var(--color-primary);
}

.value-item:hover .value-icon svg {
  stroke: #fff;
}

.value-item span {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

/* ===========================
   Application Areas
   =========================== */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.area-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  border: 1px solid transparent;
  transition: var(--transition);
}

.area-card:hover {
  background: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.area-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(26, 95, 158, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: var(--transition);
}

.area-card:hover .area-icon {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.1);
}

.area-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.area-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.cta-text h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.cta-text p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
}

/* ===========================
   Footer
   =========================== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo span {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  max-width: 320px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

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

.footer-col ul li a,
.footer-col ul li span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition);
}

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

.footer-contact ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-contact ul li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-primary-light);
}

.footer-bottom {
  text-align: center;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
  color: var(--color-primary-light);
}

/* ===========================
   Back to Top
   =========================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-4px);
}

/* ===========================
   Animations
   =========================== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===========================
   Page Header (sub-pages)
   =========================== */
.page-header {
  padding: 160px 0 60px;
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f1fb 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 95, 158, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 95, 158, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.page-header h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-text);
  position: relative;
  z-index: 1;
}

.page-header .breadcrumb {
  margin-top: 12px;
  font-size: 14px;
  color: var(--color-text-light);
  position: relative;
  z-index: 1;
}

.page-header .breadcrumb a {
  color: var(--color-primary);
}

.page-header .breadcrumb a:hover {
  text-decoration: underline;
}

/* ===========================
   About Page
   =========================== */
.about-page-content {
  padding: 80px 0;
}

.about-detail-text {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text-light);
}

.about-detail-text p {
  margin-bottom: 20px;
}

.about-culture {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.culture-card {
  background: #fff;
  padding: 40px 32px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.culture-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.culture-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.culture-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===========================
   Contact Page
   =========================== */
.contact-page {
  padding: 80px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-card {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.contact-info-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.contact-info-card .subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.contact-list li {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(26, 95, 158, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-detail-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-detail-value {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.contact-detail-value a {
  color: var(--color-primary);
}

.contact-form-card {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.contact-form-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.contact-form-card .subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--color-text);
  transition: var(--transition);
  background: var(--color-bg-alt);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
}

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

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 16px;
}

/* ===========================
   Products Page
   =========================== */
.products-page {
  padding: 80px 0;
}

.products-page .products-grid {
  grid-template-columns: repeat(3, 1fr);
}

.product-detail-page {
  padding: 80px 0;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.product-detail-image {
  background: linear-gradient(135deg, #f8fafc 0%, #eef2f7 100%);
  border-radius: var(--radius-md);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.product-detail-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: var(--transition);
}

.product-detail-info h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.product-detail-info .product-detail-desc {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

.product-specs {
  margin-top: 24px;
}

.product-specs h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.spec-list li span:first-child {
  color: var(--color-text-muted);
}

.spec-list li span:last-child {
  font-weight: 600;
  color: var(--color-text);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 38px;
  }

  .hero-visual {
    width: 320px;
  }

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .header-inner {
    height: 64px;
  }

  .company-name {
    font-size: 18px;
  }

  .company-sub {
    font-size: 9px;
  }

  .header-contact {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    height: auto;
    background: var(--color-primary);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    height: auto;
  }

  .nav-link {
    width: 100%;
    height: 52px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    width: 100%;
    max-width: 340px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .stat-item:nth-child(2)::after {
    display: none;
  }

  .stat-number {
    font-size: 32px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 26px;
  }

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

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

  .about-values {
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
  }

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

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

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

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

  .product-detail-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-info-card,
  .contact-form-card {
    padding: 28px 20px;
  }

  .page-header {
    padding: 100px 0 40px;
  }

  .page-header h1 {
    font-size: 28px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 26px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

  .stat-item::after {
    display: none !important;
  }
}