/*
Theme Name: YiHeng Premium
Theme URI: https://yihengjl.com
Description: 国际高端企业官网主题 - 深蓝+香槟金配色，专业大气，适用于实验室仪器、工业设备、科技企业
Version: 1.0
Author: YiHeng
License: GPL-2.0
Text Domain: yiheng-premium
*/

/* ============================================
   CSS Variables - Premium International Style
   ============================================ */
:root {
  --primary: #002B5C;
  --primary-dark: #001835;
  --primary-light: #004080;
  --accent: #C9A55A;
  --accent-light: #E5C88A;
  --dark: #0A0E1A;
  --dark-light: #141927;
  --gray-50: #F7F9FB;
  --gray-100: #EDF1F5;
  --gray-200: #DFE6ED;
  --gray-300: #C4CDD8;
  --gray-400: #8896A8;
  --gray-500: #5E6D82;
  --gray-600: #3F4C5F;
  --gray-700: #2A3544;
  --gray-800: #171D28;
  --white: #FFFFFF;
  --gradient: linear-gradient(135deg, #002B5C 0%, #004080 50%, #C9A55A 100%);
  --gradient-dark: linear-gradient(135deg, #001835 0%, #002B5C 100%);
  --gradient-gold: linear-gradient(135deg, #C9A55A 0%, #E5C88A 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 16px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 20px 40px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.06);
  --shadow-xl: 0 32px 64px rgba(0,0,0,0.15);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  --font-number: 'SF Pro Display', 'DIN', 'Helvetica Neue', sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; border: 0; }
a { text-decoration: none; color: var(--gray-700); transition: var(--transition); }
a:hover { color: var(--primary); }
ul, ol { list-style: none; }
input, button, textarea, select { font-family: inherit; outline: none; }
.container { max-width: 1260px; margin: 0 auto; padding: 0 20px; }
.clearfix::after { content: ''; display: block; clear: both; }

.fade-up {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   TOP BAR
   ============================================ */
.top-bar {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  line-height: 38px;
  height: 38px;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: rgba(255,255,255,0.7); }
.top-bar a:hover { color: var(--accent); }
.top-bar .top-contact span { margin-right: 20px; }

/* ============================================
   HEADER & NAVIGATION - 旗舰版
   ============================================ */
.header {
  background: rgba(10,14,26,0.96);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  height: 64px;
  position: sticky; top: 0; z-index: 1000;
  border-bottom: 1px solid rgba(201,165,90,0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.header:hover { border-bottom-color: rgba(201,165,90,0.2); }
.header.scrolled { box-shadow: 0 8px 40px rgba(0,0,0,0.5); }
.header .container {
  display: flex; align-items: center; height: 100%;
  max-width: 1260px; margin: 0 auto; padding: 0 32px;
}

/* Logo */
.header .logo { flex-shrink: 0; display: flex; align-items: center; gap: 10px; margin-right: 12px; }
.header .logo img { height: 36px; }
.header .logo .site-title {
  font-family: var(--font-heading); font-size: 18px; font-weight: 800;
  color: #FFFFFF; letter-spacing: 2px; white-space: nowrap;
  transition: color 0.3s;
}
.header .logo .site-title:hover { color: var(--accent); }
.header .logo .logo-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px rgba(201,165,90,0.5);
  flex-shrink: 0;
}

/* Navigation */
.main-nav { display: flex; align-items: center; height: 100%; margin-left: 32px; gap: 2px; }
.main-nav > li { position: relative; height: 100%; display: flex; align-items: center; }
.main-nav > li > a {
  display: flex; align-items: center; height: 100%;
  padding: 0 18px; font-size: 13px; font-weight: 500;
  color: rgba(255,255,255,0.6); letter-spacing: 1px;
  transition: all 0.3s ease; white-space: nowrap;
}
.main-nav > li > a:hover,
.main-nav > li.current-menu-item > a {
  color: var(--accent); background: rgba(201,165,90,0.06);
}
.main-nav > li.current-menu-item > a { font-weight: 600; }

/* Sub Menu */
.main-nav .sub-menu {
  position: absolute; top: calc(100% + 4px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 160px;
  background: rgba(14,19,30,0.98); backdrop-filter: blur(20px);
  border-radius: 12px; border: 1px solid rgba(201,165,90,0.12);
  box-shadow: 0 24px 60px rgba(0,0,0,0.6); padding: 8px 0;
  opacity: 0; visibility: hidden;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.main-nav li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.main-nav .sub-menu a {
  display: block; padding: 11px 24px; font-size: 13px;
  color: rgba(255,255,255,0.5); transition: all 0.2s ease;
}
.main-nav .sub-menu a:hover {
  background: rgba(201,165,90,0.08); color: var(--accent); padding-left: 30px;
}

/* Header Actions */
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.header .search-btn {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06);
  cursor: pointer; font-size: 16px; color: rgba(255,255,255,0.4);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.3s;
}
.header .search-btn:hover { background: rgba(201,165,90,0.1); color: var(--accent); border-color: rgba(201,165,90,0.3); }
.header-actions .tel-header {
  font-family: var(--font-number); font-size: 16px; font-weight: 700;
  color: var(--accent); padding: 8px 16px;
  background: rgba(201,165,90,0.06); border-radius: 50px;
  border: 1px solid rgba(201,165,90,0.1); white-space: nowrap;
}

/* Mobile Toggle */
.menu-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08); border-radius: 10px;
  cursor: pointer; padding: 10px; z-index: 1001; transition: all 0.3s;
}
.menu-toggle span { display: block; height: 1.5px; background: rgba(255,255,255,0.5); border-radius: 1px; transition: all 0.3s; }
.menu-toggle:hover { border-color: rgba(201,165,90,0.3); }
.menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); background: var(--accent); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); background: var(--accent); }

@media (max-width: 768px) {
  .header .container { padding: 0 16px; }
  .main-nav { display: none; }
  .main-nav.open {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: rgba(10,14,26,0.99);
    backdrop-filter: blur(24px); padding: 8px 0; gap: 0;
    border-top: 1px solid rgba(201,165,90,0.08);
    box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  }
  .main-nav.open > li { height: auto; }
  .main-nav.open > li > a {
    padding: 16px 28px; color: rgba(255,255,255,0.65); font-size: 14px;
  }
  .menu-toggle { display: flex; margin-left: auto; }
  .header-actions .tel-header { display: none; }
}

/* ============================================
   SEARCH OVERLAY
   ============================================ */
.search-overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 20vh; opacity: 0; visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.search-overlay.active { opacity: 1; visibility: visible; }
.search-overlay-bg {
  position: absolute; inset: 0; background: rgba(10,14,26,0.85);
  backdrop-filter: blur(8px);
}
.search-overlay-box {
  position: relative; z-index: 2; width: 100%; max-width: 640px; padding: 0 20px;
}
.search-overlay-box form {
  display: flex; background: var(--white); border-radius: 50px;
  overflow: hidden; box-shadow: var(--shadow-xl);
}
.search-overlay-box input {
  flex: 1; padding: 18px 28px; border: none; font-size: 16px;
  color: var(--gray-800); background: transparent;
}
.search-overlay-box input::placeholder { color: var(--gray-400); }
.search-overlay-box button {
  padding: 18px 36px; background: var(--gradient); color: var(--white);
  border: none; font-size: 16px; font-weight: 600; cursor: pointer;
  white-space: nowrap;
}
.search-overlay-box button:hover { opacity: 0.9; }
.search-close {
  position: absolute; top: -50px; right: 20px;
  background: none; border: none; color: var(--white); font-size: 28px;
  cursor: pointer; opacity: 0.7;
}
.search-close:hover { opacity: 1; }

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  background: var(--dark);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(201,165,90,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(0,43,92,0.4) 0%, transparent 60%),
    linear-gradient(180deg, #0A0E1A 0%, #001835 50%, #0A0E1A 100%);
  z-index: 1;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,165,90,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,165,90,0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  z-index: 2; opacity: 0.5;
}
.hero .container { position: relative; z-index: 3; display: flex; align-items: center; justify-content: space-between; }
.hero .hero-content { max-width: 580px; }
.hero .hero-tag {
  display: inline-block; padding: 6px 18px;
  border: 1px solid rgba(201,165,90,0.3);
  background: rgba(201,165,90,0.08);
  backdrop-filter: blur(10px);
  border-radius: 50px; color: var(--accent);
  font-size: 12px; font-weight: 600;
  margin-bottom: 24px; letter-spacing: 3px;
  text-transform: uppercase;
  box-shadow: 0 4px 16px rgba(201,165,90,0.15);
}
.hero .hero-content h1 {
  font-family: var(--font-heading);
  font-size: 52px; font-weight: 700; line-height: 1.2;
  color: var(--white); margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero .hero-content h1 span {
  background: linear-gradient(135deg, #C9A55A 0%, #E5C88A 50%, #F5E5C8 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; display: inline-block; position: relative;
}
.hero .hero-content h1 span::after {
  content: '';
  position: absolute; bottom: -8px; left: 0; right: 0;
  height: 3px; background: var(--gradient-gold); border-radius: 2px;
}
.hero .hero-content p {
  font-size: 17px; color: rgba(255,255,255,0.65); line-height: 1.8;
  margin-bottom: 36px; max-width: 480px;
}
.hero .hero-btns { display: flex; gap: 16px; }
.hero-image {
  position: relative; z-index: 3;
  width: 480px; height: 420px;
  display: flex; align-items: center; justify-content: center;
}
.hero-image .glow {
  position: absolute; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(201,165,90,0.3) 0%, transparent 70%);
  border-radius: 50%; top: 50%; left: 50%; transform: translate(-50%, -50%);
  z-index: 1; animation: pulse-glow 3s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0.8; }
}

/* ============================================
   HERO STATS
   ============================================ */
.hero-stats {
  position: relative; z-index: 3;
  display: flex; gap: 0;
  margin-top: -60px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0,0,0,0.2), 0 0 1px rgba(201,165,90,0.3) inset;
  padding: 40px 60px;
  max-width: 1000px; margin-left: auto; margin-right: auto;
  border: 1px solid rgba(201,165,90,0.1);
}
.hero-stats .stat-item {
  flex: 1; text-align: center; padding: 0 30px;
  border-right: 1px solid rgba(0,43,92,0.1);
}
.hero-stats .stat-item:last-child { border-right: none; }
.hero-stats .stat-number {
  font-family: var(--font-number); font-size: 48px; font-weight: 800;
  background: var(--gradient-gold); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1.2; letter-spacing: -1px;
}
.hero-stats .stat-label { font-size: 13px; color: var(--gray-600); margin-top: 8px; font-weight: 500; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 36px; border-radius: 50px; font-size: 15px; font-weight: 600;
  letter-spacing: 0.5px; cursor: pointer; transition: var(--transition);
  border: none; line-height: 1.2;
}
.btn-primary {
  background: var(--gradient); color: var(--white);
  box-shadow: 0 8px 24px rgba(0,43,92,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,43,92,0.4); color: var(--white); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover { background: var(--white); color: var(--primary); border-color: var(--white); transform: translateY(-2px); }
.btn-white { background: var(--white); color: var(--primary); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-sm { padding: 10px 24px; font-size: 14px; }
.btn-outline-dark { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline-dark:hover { background: var(--primary); color: var(--white); }

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 90px 0; }
.section-gray { background: var(--gray-50); }
.section-dark { background: var(--dark); color: var(--white); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-tag {
  display: inline-block; padding: 6px 20px;
  background: linear-gradient(135deg, rgba(201,165,90,0.1) 0%, rgba(201,165,90,0.05) 100%);
  border: 1px solid rgba(201,165,90,0.2);
  color: var(--accent); font-size: 11px; font-weight: 700; border-radius: 50px;
  letter-spacing: 3px; text-transform: uppercase; margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(201,165,90,0.1);
}
.section-header h2 { font-family: var(--font-heading); font-size: 38px; font-weight: 700; color: var(--gray-800); margin-bottom: 14px; }
.section-dark .section-header h2 { color: var(--white); }
.section-header p { font-size: 16px; color: var(--gray-500); max-width: 640px; margin: 0 auto; }

/* ============================================
   CATEGORY CARDS
   ============================================ */
.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.category-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 40px 28px;
  text-align: center; transition: var(--transition);
  position: relative; overflow: hidden;
}
.category-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px; background: var(--gradient); transform: scaleX(0); transition: var(--transition);
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.category-card:hover::before { transform: scaleX(1); }
.category-card .cat-icon {
  width: 70px; height: 70px; margin: 0 auto 20px;
  background: var(--gray-50); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 32px; transition: var(--transition);
}
.category-card:hover .cat-icon { background: var(--gradient); color: var(--white); }
.category-card h3 { font-size: 18px; font-weight: 600; color: var(--gray-800); margin-bottom: 8px; }
.category-card p { font-size: 13px; color: var(--gray-500); line-height: 1.6; }
.category-card .cat-link { display: inline-block; margin-top: 16px; font-size: 13px; font-weight: 600; color: var(--primary); }

/* ============================================
   PRODUCT CARDS
   ============================================ */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition); border: 1px solid var(--gray-100);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card .product-img {
  position: relative; height: 240px; overflow: hidden;
  background: var(--gray-50); display: flex; align-items: center; justify-content: center;
}
.product-card .product-img img {
  width: 85%; height: 85%; object-fit: contain;
  transition: transform 0.5s ease;
}
.product-card:hover .product-img img { transform: scale(1.08); }
.product-card .product-info { padding: 20px; }
.product-card .product-info h3 {
  font-size: 16px; font-weight: 600; color: var(--gray-800);
  margin-bottom: 8px;
}
.product-card .product-info .product-desc {
  font-size: 13px; color: var(--gray-500); line-height: 1.6;
  margin-bottom: 14px;
}
.product-card .product-info .product-more { font-size: 13px; font-weight: 600; color: var(--primary); }

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-image { position: relative; }
.about-image img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; }
.about-experience {
  position: absolute; bottom: -30px; right: -30px;
  background: var(--gradient); color: var(--white);
  padding: 28px 36px; border-radius: var(--radius-lg);
  text-align: center; box-shadow: var(--shadow-xl);
}
.about-experience .exp-number { font-family: var(--font-number); font-size: 48px; font-weight: 800; line-height: 1; }
.about-experience .exp-text { font-size: 14px; opacity: 0.85; margin-top: 4px; }
.about-text .about-tag { color: var(--accent); font-weight: 600; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.about-text h2 { font-family: var(--font-heading); font-size: 36px; font-weight: 700; color: var(--gray-800); margin-bottom: 20px; }
.about-text p { font-size: 15px; color: var(--gray-600); line-height: 1.9; margin-bottom: 16px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 28px 0; }
.about-feature {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 16px; background: var(--gray-50); border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}
.about-feature .feat-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gradient); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.about-feature h4 { font-size: 15px; font-weight: 600; color: var(--gray-800); margin-bottom: 4px; }
.about-feature p { font-size: 12px; color: var(--gray-500); margin: 0; }

/* ============================================
   FEATURES GRID
   ============================================ */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-box {
  text-align: center; padding: 40px 24px;
  background: rgba(255,255,255,0.04); border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.08); transition: var(--transition);
}
.feature-box:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.feature-box .feat-icon {
  width: 64px; height: 64px; margin: 0 auto 20px;
  background: rgba(201,165,90,0.15); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: var(--accent);
}
.feature-box h4 { font-size: 18px; font-weight: 600; color: var(--white); margin-bottom: 10px; }
.feature-box p { font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.7; }

/* ============================================
   NEWS CARDS
   ============================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition); border: 1px solid var(--gray-100);
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .news-img { position: relative; height: 200px; overflow: hidden; }
.news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-img img { transform: scale(1.05); }
.news-card .news-date {
  position: absolute; top: 16px; left: 16px;
  background: var(--white); padding: 8px 14px; border-radius: var(--radius-sm);
  text-align: center; box-shadow: var(--shadow-sm);
}
.news-card .news-date .day { font-family: var(--font-number); font-size: 22px; font-weight: 700; color: var(--primary); display: block; line-height: 1; }
.news-card .news-date .month { font-size: 11px; color: var(--gray-500); display: block; }
.news-card .news-body { padding: 20px; }
.news-card .news-body h3 { font-size: 16px; font-weight: 600; color: var(--gray-800); margin-bottom: 10px; }
.news-card .news-body p { font-size: 13px; color: var(--gray-500); line-height: 1.7; margin-bottom: 14px; }
.news-card .news-body .read-more { font-size: 13px; font-weight: 600; color: var(--primary); }

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  background: var(--gradient-dark); padding: 70px 0;
  text-align: center; position: relative; overflow: hidden;
}
.cta-section h2 { font-family: var(--font-heading); font-size: 36px; font-weight: 700; color: var(--white); margin-bottom: 14px; }
.cta-section p { font-size: 16px; color: rgba(255,255,255,0.65); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-section .cta-btns { display: flex; gap: 16px; justify-content: center; }
.cta-phone { font-family: var(--font-number); font-size: 28px; font-weight: 700; color: var(--white); margin-bottom: 20px; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--dark); color: rgba(255,255,255,0.6);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 50px;
  padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-col h4 {
  font-size: 16px; font-weight: 600; color: var(--white);
  margin-bottom: 20px; position: relative; padding-bottom: 12px;
}
.footer-col h4::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 30px; height: 3px; background: var(--accent); border-radius: 2px;
}
.footer-about p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.footer-contact li { font-size: 14px; margin-bottom: 10px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.5); font-size: 14px; }
.footer-links a:hover { color: var(--accent); padding-left: 5px; }
.footer-bottom {
  padding: 24px 0; display: flex; justify-content: space-between;
  align-items: center; font-size: 13px; color: rgba(255,255,255,0.3);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--accent); }

/* ============================================
   SIDEBAR CONTACT
   ============================================ */
.sidebar-contact {
  position: fixed; right: 20px; top: 50%; transform: translateY(-50%);
  z-index: 999; display: flex; flex-direction: column; gap: 6px;
}
.sidebar-contact a {
  width: 50px; height: 50px; border-radius: 50%; background: var(--white);
  box-shadow: var(--shadow); display: flex; align-items: center;
  justify-content: center; font-size: 22px; color: var(--primary);
  transition: var(--transition); position: relative;
}
.sidebar-contact a:hover { background: var(--gradient); color: var(--white); transform: translateX(-4px); }
.sidebar-contact a .tip {
  position: absolute; right: 64px; white-space: nowrap;
  background: var(--dark); color: var(--white); padding: 8px 16px;
  border-radius: var(--radius-sm); font-size: 13px;
  opacity: 0; visibility: hidden; transition: var(--transition); pointer-events: none;
}
.sidebar-contact a:hover .tip { opacity: 1; visibility: visible; }
.sidebar-contact .back-top { margin-top: 10px; opacity: 0; pointer-events: none; transition: var(--transition); }

/* ============================================
   INQUIRY MODAL
   ============================================ */
.inquiry-modal {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.inquiry-modal.active { opacity: 1; visibility: visible; }
.inquiry-modal-bg { position: absolute; inset: 0; background: rgba(10,14,26,0.85); backdrop-filter: blur(8px); }
.inquiry-modal-box {
  position: relative; z-index: 2; background: var(--white);
  border-radius: var(--radius-lg); width: 90%; max-width: 520px;
  padding: 40px; box-shadow: var(--shadow-xl);
  border: 1px solid rgba(201,165,90,0.2);
  transform: translateY(30px); transition: var(--transition);
}
.inquiry-modal.active .inquiry-modal-box { transform: translateY(0); }
.inquiry-modal-close {
  position: absolute; top: 16px; right: 16px;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--gray-100); border: none;
  font-size: 18px; cursor: pointer;
}
.inquiry-modal-close:hover { background: var(--primary); color: var(--white); }
.inquiry-modal h3 { font-size: 24px; font-weight: 700; color: var(--gray-800); margin-bottom: 8px; }
.inquiry-modal p { font-size: 14px; color: var(--gray-500); margin-bottom: 24px; }
.inquiry-form .form-group { margin-bottom: 16px; }
.inquiry-form label { display: block; font-size: 14px; font-weight: 600; color: var(--gray-700); margin-bottom: 8px; }
.inquiry-form label span { color: #EF4444; }
.inquiry-form input, .inquiry-form textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm); font-size: 14px;
}
.inquiry-form input:focus, .inquiry-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,165,90,0.1); }
.inquiry-form textarea { resize: vertical; min-height: 80px; }
.inquiry-form .btn-submit {
  width: 100%; padding: 14px; background: var(--gradient);
  color: var(--white); border: none; border-radius: 50px;
  font-size: 16px; font-weight: 600; cursor: pointer; margin-top: 8px;
}
.inquiry-form .btn-submit:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ============================================
   CONTENT PAGE
   ============================================ */
.page-content { padding: 60px 0; max-width: 900px; margin: 0 auto; }
.page-content h1 { font-size: 32px; font-weight: 700; color: var(--gray-800); margin-bottom: 30px; }
.page-content h2 { font-size: 24px; margin: 30px 0 15px; color: var(--gray-800); }
.page-content h3 { font-size: 20px; margin: 24px 0 12px; color: var(--gray-800); }
.page-content p { margin-bottom: 16px; line-height: 1.9; }
.page-content img { border-radius: var(--radius); margin: 20px 0; }
.page-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.page-content table td, .page-content table th { border: 1px solid var(--gray-200); padding: 10px 14px; }
.page-content table th { background: var(--gray-50); font-weight: 600; }

/* Search results */
.search-results { padding: 60px 0; }
.search-results h2 { font-size: 24px; margin-bottom: 30px; }
.search-item { padding: 20px 0; border-bottom: 1px solid var(--gray-200); }
.search-item h3 { font-size: 18px; margin-bottom: 8px; }
.search-item h3 a { color: var(--primary); }

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 50px; }
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200); background: var(--white);
}
.pagination a:hover, .pagination span.current { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
  .container { max-width: 960px; }
  .hero .hero-content h1 { font-size: 40px; }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { margin: -60px 20px 0; }
  .main-nav { margin-left: 30px; }
  .main-nav > li > a { padding: 0 14px; }
  .hero-image { display: none; }
  .about-section { gap: 40px; }
}

@media (max-width: 768px) {
  .header { height: 60px; }
  .main-nav { display: none; }
  .main-nav.open { display: flex; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--white); box-shadow: var(--shadow-lg); padding: 10px 0; }
  .menu-toggle { display: flex; margin-left: auto; }
  .hero { min-height: 500px; }
  .hero .hero-content h1 { font-size: 32px; }
  .hero-stats { flex-wrap: wrap; padding: 24px; }
  .hero-stats .stat-item { flex: 1 1 50%; padding: 16px; border: none; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .about-section { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-header h2 { font-size: 28px; }
  .sidebar-contact { right: 10px; }
}

@media (max-width: 480px) {
  .hero .hero-content h1 { font-size: 26px; }
  .hero .hero-btns { flex-direction: column; }
  .categories-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .hero-stats .stat-item { flex: 1 1 100%; }
}