/* ============================================
   苏州英氏测量 · 浙江测量解决方案
   个人专业品牌网站
   Author: Yuri
   Description: 工业测量量具仪器专业网站
   ============================================ */

/* === CSS Variables === */
:root {
  --primary: #1a3c5e;        /* 深蓝 - 专业、精密 */
  --primary-dark: #0f2840;
  --primary-light: #2d5a85;
  --accent: #d4940e;         /* 金橙 - 品质、信任 */
  --accent-light: #f0b830;
  --bg-light: #f5f6f8;
  --bg-white: #ffffff;
  --text-dark: #1a1a1a;
  --text-gray: #555555;
  --text-light: #888888;
  --border: #e0e3e8;
  --success: #2e7d32;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "Segoe UI", system-ui, sans-serif;
}

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

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

body {
  font-family: var(--font-cn);
  color: var(--text-dark);
  line-height: 1.7;
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--accent); }

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

ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* === Typography === */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; color: var(--text-dark); }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }

.section-title {
  text-align: center;
  margin-bottom: 12px;
  color: var(--primary-dark);
}
.section-subtitle {
  text-align: center;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(212,148,14,0.35);
}

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

.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: var(--bg-light);
  color: var(--primary-dark);
}

/* === Header / Navigation === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.site-header.scrolled { box-shadow: var(--shadow); }

/* Header Inner Container */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-text {
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--primary-dark);
  letter-spacing: 2px;
}
.logo-accent { color: var(--accent); }
.logo-tagline {
  font-size: 0.75rem;
  color: var(--text-light);
  background: #f0f3f6;
  padding: 2px 8px;
  border-radius: 10px;
}

/* Navbar */
.navbar { flex: 1; display: flex; justify-content: center; }
.navbar ul {
  display: flex;
  gap: 38px;
  align-items: center;
  list-style: none;
  padding: 0 16px;
}
.navbar a {
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1.05rem;
  position: relative;
  padding: 8px 2px;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.navbar a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s;
}
.navbar a:hover::after,
.navbar a.active::after { width: 100%; }
.navbar a:hover, .navbar a.active { color: var(--primary); }

/* Header Contact */
.header-contact { flex-shrink: 0; margin-left: 32px; padding-left: 12px; }
.header-phone { font-weight: 600; color: var(--primary); font-size: 1rem; white-space: nowrap; }

/* Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--primary);
  padding: 4px 8px;
  flex-shrink: 0;
}

/* === Hero Section === */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
  color: #fff;
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212,148,14,0.1) 0%, transparent 60%);
  border-radius: 50%;
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* Single column hero (index page) */
.hero-content.hero-centered,
.hero:has(.hero-content h1:not(.hero-text h1)) .hero-content {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 800px;
}

.hero-text h1 {
  color: #fff;
  font-size: 2.8rem;
  margin-bottom: 16px;
  line-height: 1.25;
}
.hero-text h1 .highlight {
  color: var(--accent-light);
  display: inline-block;
}
.hero-text .hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 24px;
  line-height: 1.6;
}
.hero-text .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.hero-tag {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.9);
  backdrop-filter: blur(4px);
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.12);
}
.hero-visual .stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
.hero-visual .stat-item {
  text-align: center;
}
.hero-stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-light);
  font-family: var(--font-en);
}
.hero-stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}
.hero-visual .service-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero-visual .service-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.service-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-light);
  flex-shrink: 0;
}

/* === Trust Bar === */
.trust-bar {
  background: var(--bg-light);
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.trust-bar .container {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  align-items: center;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-gray);
  font-size: 0.95rem;
  font-weight: 500;
}
.trust-icon {
  font-size: 1.4rem;
  color: var(--primary);
}

/* === Sections === */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--bg-light);
}

/* === Product Cards === */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: 1px solid var(--border);
  text-align: center;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.product-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
.product-card h3 { margin-bottom: 8px; }
.product-card .brand {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 12px;
}
.product-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* === Case Cards === */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s;
  border: 1px solid var(--border);
}
.case-card:hover { transform: translateY(-4px); }
.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  border-radius: 4px;
  font-size: 0.8rem;
  margin-bottom: 12px;
}
.case-body { padding: 24px; }
.case-body h3 { margin-bottom: 8px; }
.case-body p { color: var(--text-gray); font-size: 0.95rem; }
.case-result {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 20px;
}
.case-result-item { font-size: 0.9rem; color: var(--text-gray); }
.case-result-item strong { color: var(--success); }

/* === Article Cards === */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.article-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.article-date {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 8px;
}
.article-card h3 {
  margin-bottom: 8px;
  font-size: 1.15rem;
}
.article-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.article-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

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

.about-image-placeholder {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 5rem;
}

.about-text h2 { margin-bottom: 16px; }
.about-text .lead {
  font-size: 1.15rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 16px;
}
.about-text p { color: var(--text-gray); margin-bottom: 16px; }
.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}
.about-highlight {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}
.about-highlight .check {
  color: var(--success);
  font-weight: 700;
  font-size: 1.2rem;
}

/* === Contact Section === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info h3 {
  margin-bottom: 16px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}
.contact-info-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}
.contact-info-item .label {
  font-size: 0.85rem;
  color: var(--text-light);
}
.contact-info-item .value {
  font-weight: 600;
  color: var(--text-dark);
}

.qr-code-box {
  margin-top: 24px;
  text-align: center;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
}
.qr-code-placeholder {
  width: 140px;
  height: 140px;
  background: #fff;
  margin: 0 auto 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-light);
}
.qr-code-box p { font-size: 0.9rem; color: var(--text-gray); font-weight: 500; }

.contact-form {
  background: #fff;
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.contact-form h3 { margin-bottom: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 0.9rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-cn);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(212,148,14,0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }

/* === Footer === */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-col h4 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 1rem;
}
.footer-col p { font-size: 0.9rem; line-height: 1.7; }
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent-light); }
.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
}

/* === Floating CTA === */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s;
  border: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-wechat { background: #07c160; color: #fff; }
.float-tel { background: var(--accent); color: #fff; }
.float-top { background: #fff; color: var(--primary); border: 1px solid var(--border); }

/* === Page Header (Sub Pages) === */
.page-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.page-header h1 { color: #fff; margin-bottom: 12px; }
.page-header .breadcrumb {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}
.page-header .breadcrumb a { color: rgba(255,255,255,0.9); }

/* === SEO Keywords Section === */
.seo-section {
  padding: 60px 0;
  background: var(--bg-light);
}
.seo-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.seo-keyword {
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-gray);
}

/* === CTA Banner === */
.cta-banner {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  padding: 56px 0;
  text-align: center;
  color: #fff;
}
.cta-banner h2 { color: #fff; margin-bottom: 12px; }
.cta-banner p { font-size: 1.1rem; margin-bottom: 24px; opacity: 0.95; }
.cta-banner .btn-white { color: var(--accent); }

/* === Responsive === */
@media (max-width: 992px) {
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-text h1 { font-size: 2rem; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  html { font-size: 15px; }
  .menu-toggle { display: block; }
  .navbar ul {
    display: none;
    position: absolute;
    top: 88px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    gap: 14px;
    box-shadow: var(--shadow-lg);
    border-bottom: 2px solid var(--border);
  }
  .navbar.open ul { display: flex; }
  .header-phone { font-size: 0.85rem; }
  .products-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .hero-text h1 { font-size: 1.75rem; }
  .hero { padding: 48px 0 60px; }
  .trust-bar .container { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .floating-cta { bottom: 16px; right: 16px; }
}

/* === Animations === */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ====== NEW COMPONENTS FOR 知信精密 ====== */

/* Text accent helper */
.text-accent { color: var(--accent); }
.text-center { text-align: center; }
.mt-30 { margin-top: 30px; }
.section-desc { text-align: center; color: var(--text-gray); max-width: 600px; margin: 0 auto 36px; font-size: 1.05rem; }

/* Page Hero (inner pages) */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #0d2a45 100%);
  color: white;
  padding: 60px 0;
  text-align: center;
  margin-top: 70px;
}
.page-hero h1 { font-size: 2.2rem; color: white; margin-bottom: 8px; }
.page-hero p { font-size: 1.1rem; opacity: 0.85; }

/* Declaration Section */
.declaration-section { padding: 50px 0; }
.declaration-box {
  background: linear-gradient(135deg, #f8f5f0 0%, #fffdf5 100%);
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 50px 30px;
  max-width: 700px;
  margin: 0 auto;
}
.declaration-title { font-size: 2rem; color: var(--primary); margin-bottom: 12px; letter-spacing: 4px; }
.declaration-text { font-size: 1.5rem; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.declaration-sub { font-size: 1.1rem; color: var(--text-gray); }

/* Expert Profile (compact - index) */
.expert-profile {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}
.expert-name { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.expert-name h3 { font-size: 1.6rem; color: var(--primary); }
.expert-badge {
  background: var(--accent);
  color: white;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}
.expert-bio { margin-bottom: 20px; }
.expert-bio p { margin-bottom: 10px; line-height: 1.8; }
.expert-promise { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.promise-item {
  background: #f0f4f8;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--primary);
}
.expert-contact { text-align: center; margin-top: 8px; }

/* Expert Profile Full (about page) */
.expert-profile-full { max-width: 800px; margin: 0 auto; }
.expert-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}
.expert-header { text-align: center; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 2px solid var(--accent); }
.expert-header h3 { font-size: 2rem; color: var(--primary); }
.expert-title { color: var(--accent); font-weight: 600; font-size: 1.1rem; }
.expert-section { margin-bottom: 24px; }
.expert-section h4 { color: var(--primary); margin-bottom: 10px; font-size: 1.15rem; }
.expert-section ul { list-style: disc; padding-left: 20px; }
.expert-section li { margin-bottom: 6px; }
.expert-cta {
  text-align: center;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.expert-cta a { font-size: 1.3em; }

/* Service Scope Grid */
.service-scope-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.scope-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: all 0.2s;
}
.scope-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.scope-icon { font-size: 2rem; margin-bottom: 8px; }
.scope-item h4 { font-size: 0.95rem; color: var(--primary); margin-bottom: 4px; }
.scope-item p { font-size: 0.8rem; color: var(--text-light); line-height: 1.4; }

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.feature-item {
  background: white;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.feature-item:hover { transform: translateY(-3px); }
.feature-item h3 { color: var(--primary); margin-bottom: 10px; }
.feature-item p { color: var(--text-gray); line-height: 1.6; }

/* Category Cards (index page) */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.category-card {
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--text-dark);
  transition: all 0.3s;
  display: block;
}
.category-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: var(--text-dark);
}
.cat-card-icon { font-size: 2.5rem; margin-bottom: 10px; }
.category-card h3 { color: var(--primary); margin-bottom: 6px; font-size: 1.1rem; }
.category-card p { color: var(--text-light); font-size: 0.85rem; margin-bottom: 10px; }
.cat-card-link { color: var(--accent); font-weight: 600; font-size: 0.85rem; }

/* Category Filter Buttons */
.cat-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.cat-btn {
  padding: 8px 18px;
  border: 2px solid var(--border);
  border-radius: 25px;
  background: white;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: var(--font-cn);
  transition: all 0.2s;
  white-space: nowrap;
}
.cat-btn:hover, .cat-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Brand Certificate Cards */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.cert-card {
  display: block;
  text-align: center;
  padding: 32px 20px;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: white;
  transition: all 0.25s ease;
  text-decoration: none;
  color: var(--text);
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
  border-color: var(--accent);
}
.cert-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}
.cert-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--primary);
}
.cert-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.6;
}
.cert-download {
  display: inline-block;
  padding: 8px 20px;
  background: var(--accent);
  color: white;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s;
}
.cert-card:hover .cert-download {
  background: #b87a0c;
}

/* Product Detail Grid & Cards */
.product-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}
.product-detail-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: all 0.3s;
}
.product-detail-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.product-detail-card.bestseller {
  border-color: var(--accent);
}
.prod-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #e74c3c;
  color: white;
  padding: 3px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  z-index: 2;
}
.prod-img {
  width: 100%;
  height: 200px;
  background: #f0f3f6;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.prod-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
}
.no-img {
  color: #aaa;
  text-align: center;
  font-size: 0.9rem;
}
.prod-info {
  padding: 16px;
}
.prod-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
  line-height: 1.4;
}
.prod-model {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 8px;
  font-family: 'Consolas', 'Courier New', monospace;
}
.prod-desc {
  font-size: 0.85rem;
  color: var(--text-gray);
  line-height: 1.5;
  margin-bottom: 8px;
}
.prod-specs {
  list-style: none;
  padding: 0;
}
.prod-specs li {
  font-size: 0.8rem;
  color: var(--text-light);
  padding: 2px 0;
  padding-left: 14px;
  position: relative;
}
.prod-specs li::before {
  content: '•';
  color: var(--accent);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Subcategory heading */
.subcat-heading {
  font-size: 1.15rem;
  font-weight: 600;
  color: #555;
  margin: 20px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}

/* Product category section */
.product-cat-section { margin-bottom: 50px; scroll-margin-top: 80px; }

/* About Story */
.about-story { max-width: 800px; margin: 0 auto; }
.story-content { line-height: 1.8; }
.story-content p { margin-bottom: 14px; }
.story-content ul { margin-bottom: 14px; }
.story-content li { margin-bottom: 8px; padding-left: 8px; }

/* About list (shared) */
.about-list { list-style: none; padding: 0; }
.about-list li { margin-bottom: 8px; padding: 6px 0; }

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #0d2a45 100%);
  color: white;
  padding: 60px 0;
}
.cta-section h2 { color: white; }
.cta-contact-info { margin-top: 20px; }
.cta-contact-info a { color: var(--accent); font-weight: 700; }

/* Contact Layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-card-main {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
}
.contact-info-list { display: flex; flex-direction: column; gap: 16px; }
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px;
  background: var(--bg-light);
  border-radius: var(--radius);
}
.ci-icon { font-size: 1.5rem; flex-shrink: 0; }

/* Consult List */
.consult-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.consult-item {
  background: white;
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.consult-item h4 { color: var(--primary); margin-bottom: 8px; }
.consult-item p { color: var(--text-gray); font-size: 0.9rem; }

/* Service Cards (index page) */
.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.service-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.service-card:hover { transform: translateY(-3px); }
.service-icon { font-size: 2.8rem; margin-bottom: 12px; }
.service-card h3 { color: var(--primary); margin-bottom: 8px; }
.service-card p { color: var(--text-gray); font-size: 0.9rem; line-height: 1.6; }

/* Sections */
.section { padding: 60px 0; }
.section-light { background: var(--bg-light); }
.section-dark { background: var(--primary); color: white; }
.section-dark .section-title { color: white; }

/* Hero Stats (for single-column hero) */
.hero-content h1 {
  color: #fff;
  font-size: 2.8rem;
  margin-bottom: 16px;
  line-height: 1.25;
}
.hero-content .hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 16px;
}
.hero-content .hero-desc {
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
  line-height: 1.7;
}
.hero-content .hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 36px;
}
.stat-item { text-align: center; }
.stat-item strong { display: block; font-size: 1.8rem; color: var(--accent); }
.stat-item span { font-size: 0.9rem; opacity: 0.8; }

/* Floating CTA */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}
.floating-cta.visible { opacity: 1; visibility: visible; }
.float-phone, .float-wechat {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: transform 0.2s;
}
.float-phone { background: var(--accent); }
.float-wechat { background: #2ecc71; }
.float-phone:hover, .float-wechat:hover { transform: scale(1.1); }

/* ====== DIGITAL SOLUTIONS SECTION ====== */
.digital-section {
  background: linear-gradient(180deg, #f8fafe 0%, #fff 100%);
  border-top: 1px solid #e8ecf2;
  border-bottom: 1px solid #e8ecf2;
}

.digital-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

/* Video Box */
.digital-video-box {
  position: sticky;
  top: 90px;
}
.video-wrapper {
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.video-wrapper video {
  display: block;
  width: 100%;
  border-radius: var(--radius-lg);
}
.video-caption {
  text-align: center;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* Digital Content */
.digital-intro {
  margin-bottom: 24px;
}
.digital-intro h3 {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 12px;
}
.digital-intro p {
  color: var(--text-gray);
  line-height: 1.8;
}

/* Digital Feature Grid */
.digital-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}
.digi-feat {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid #eef1f5;
  transition: all 0.2s;
}
.digi-feat:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.digi-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1.2;
}
.digi-feat h4 {
  font-size: 0.95rem;
  color: var(--primary);
  margin-bottom: 4px;
}
.digi-feat p {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
}

.digital-cta {
  text-align: center;
}

/* Digital responsive */
@media (max-width: 992px) {
  .digital-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .digital-video-box {
    position: static;
    max-width: 600px;
    margin: 0 auto;
  }
}
@media (max-width: 768px) {
  .digital-features {
    grid-template-columns: 1fr;
  }
  .digital-intro h3 {
    font-size: 1.25rem;
  }
}

/* ====== HERO PROMISES (醒目大字) ====== */
.hero-promises {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin: 24px 0;
}
.hero-promise-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50px;
  padding: 14px 28px;
  transition: all 0.3s;
}
.hero-promise-item:hover {
  background: rgba(212,148,14,0.25);
  border-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(212,148,14,0.25);
}
.hp-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
}
.hp-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .hero-promises {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .hero-promise-item {
    padding: 12px 22px;
  }
  .hp-text { font-size: 1rem; }
}

/* ====== SALES GRID (销售内容) ====== */
.sales-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.sales-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: all 0.3s;
}
.sales-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.sales-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}
.sales-card h3 {
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 10px;
}
.sales-card p {
  color: var(--text-gray);
  font-size: 0.9rem;
  line-height: 1.7;
}
@media (max-width: 992px) {
  .sales-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sales-grid { grid-template-columns: 1fr; }
}

/* ====== TECH SERVICES GRID (技术服务) ====== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tech-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  transition: all 0.3s;
}
.tech-card:hover {
  border-left-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.tech-icon {
  font-size: 2.8rem;
  margin-bottom: 14px;
  display: block;
}
.tech-card h3 {
  color: var(--primary);
  font-size: 1.15rem;
  margin-bottom: 10px;
}
.tech-card p {
  color: var(--text-gray);
  font-size: 0.88rem;
  line-height: 1.7;
}
@media (max-width: 992px) {
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .tech-grid { grid-template-columns: 1fr; }
}

/* ====== CATALOG GALLERY (产品样册) ====== */
.catalog-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.catalog-card {
  cursor: pointer;
  transition: all 0.3s;
  border-radius: var(--radius);
  overflow: hidden;
  background: white;
  box-shadow: var(--shadow);
}

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

.catalog-thumb {
  width: 100%;
  aspect-ratio: 0.73;
  overflow: hidden;
  background: #f0f3f6;
}

.catalog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.catalog-card:hover .catalog-thumb img {
  transform: scale(1.05);
}

.catalog-label {
  display: block;
  text-align: center;
  padding: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  background: white;
}

/* Catalog Lightbox */
.catalog-lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.92);
  align-items: center;
  justify-content: center;
}

.catalog-lightbox.open {
  display: flex;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 2.5rem;
  color: white;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s;
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.15);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
  color: white;
  background: rgba(255,255,255,0.1);
  border: none;
  cursor: pointer;
  z-index: 10;
  width: 60px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: background 0.2s;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255,255,255,0.25);
}

.lightbox-img-wrapper {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img-wrapper img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 4px 40px rgba(0,0,0,0.3);
}

.lightbox-counter {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  font-weight: 500;
  background: rgba(0,0,0,0.4);
  padding: 6px 20px;
  border-radius: 20px;
}

@media (max-width: 992px) {
  .catalog-gallery {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .lightbox-prev { left: 8px; font-size: 2rem; width: 44px; height: 60px; }
  .lightbox-next { right: 8px; font-size: 2rem; width: 44px; height: 60px; }
  .lightbox-close { top: 10px; right: 14px; font-size: 2rem; }
}

@media (max-width: 768px) {
  .catalog-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .catalog-label { font-size: 0.8rem; padding: 8px; }
  .lightbox-prev, .lightbox-next { font-size: 1.5rem; width: 36px; height: 50px; }
}

/* === Print === */
@media print {
  .site-header, .floating-cta, .site-footer, .cta-banner { display: none; }
}

/* ====== 导航栏搜索入口 ====== */
.nav-search-item {
  margin-left: 6px;
}
.nav-search-link {
  display: inline-flex !important;
  align-items: center;
  gap: 4px;
  padding: 6px 14px !important;
  background: #f5f6f8;
  border-radius: 18px;
  transition: all 0.25s;
  font-size: 0.95rem !important;
}
.nav-search-link:hover {
  background: #fdf4dc;
  color: var(--accent) !important;
}
.nav-search-link::after { display: none !important; }

/* 移动端隐藏搜索文字 */
@media (max-width: 768px) {
  .nav-search-link span { display: none; }
  .nav-search-link { padding: 6px 10px !important; }
}

/* ====== 搜索结果页 ====== */
.s-page-input::placeholder { color: #bbb; }
.s-page-input:focus { outline: none; }

.s-page-summary {
  padding: 12px 0 20px;
  font-size: 0.95rem;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.s-result-group {
  margin-bottom: 32px;
}
.s-group-title {
  font-size: 1.05rem;
  color: var(--primary);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.s-group-title span {
  font-size: 0.8rem;
  color: var(--text-light);
  font-weight: 400;
}

.s-result-item {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid #f0f0f0;
  text-decoration: none;
  transition: all 0.2s;
}
.s-result-item:hover { padding-left: 8px; }
.s-result-item:hover .s-item-title { color: var(--accent); }

.s-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.s-item-title {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--primary-dark);
  transition: color 0.2s;
}

.s-item-desc {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
}
.s-item-desc mark {
  background: #fff3cd;
  color: var(--primary-dark);
  padding: 1px 3px;
  border-radius: 2px;
}

.s-page-empty {
  text-align: center;
  padding: 40px 20px 60px;
}
.s-empty-icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}
.s-page-empty h3 {
  font-size: 1.15rem;
  color: var(--text-gray);
  margin-bottom: 8px;
}
.s-page-empty p {
  color: var(--text-light);
  font-size: 0.95rem;
}

.s-page-footer {
  margin-top: 36px;
  padding: 24px;
  background: #fdf8ee;
  border-radius: 10px;
  text-align: center;
  border: 1px solid #f0e6cc;
}
.s-page-footer p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-gray);
}
.s-page-footer a {
  color: var(--accent);
  font-weight: 600;
}

/* 推荐搜索标签 */
.s-tag-link {
  display: inline-block;
  padding: 8px 18px;
  background: #f0f3f6;
  border-radius: 20px;
  color: var(--text-gray) !important;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.s-tag-link:hover {
  background: var(--accent);
  color: #fff !important;
}

/* 移动端 */
@media (max-width: 640px) {
  .s-result-item { padding: 12px 0; }
  .s-item-title { font-size: 0.95rem; }
}