:root {
  --primary: #165DFF;
  --primary-dark: #0E42D2;
  --primary-light: #4080FF;
  --accent: #FF7D00;
  --accent-dark: #D66800;
  --text-dark: #333333;
  --text-mid: #666666;
  --text-light: #999999;
  --bg-light: #F5F7FA;
  --bg-white: #FFFFFF;
  --border: #E5E8ED;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 6px 24px rgba(22, 93, 255, 0.15);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1600px;
  --header-height: 120px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

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

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.logo-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  padding: 8px 16px;
  font-size: 0.95rem;
  color: var(--text-dark);
  border-radius: 6px;
  position: relative;
  font-weight: 500;
}

.nav a:hover,
.nav a.active {
  color: var(--primary);
  background: rgba(22, 93, 255, 0.06);
}

.nav a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-phone {
  font-size: 0.9rem;
  color: var(--text-mid);
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22, 93, 255, 0.3);
}

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

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

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

.btn-white:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
}

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

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

/* ========== Hero / Banner ========== */
.hero {
  margin-top: var(--header-height);
  position: relative;
  overflow: hidden;
  background: #0a1628;
}

.hero-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 2848 / 1000;
  max-height: 720px;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  color: white;
}

.hero-content h1 {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  font-size: 1.15rem;
  opacity: 0.85;
  margin-bottom: 32px;
  max-width: 600px;
  line-height: 1.8;
}

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

.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background: white;
  width: 30px;
  border-radius: 5px;
}

.hero-decoration {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  opacity: 0.12;
}

.hero-decoration svg {
  width: 400px;
  height: 400px;
}

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

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

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-header .divider {
  width: 50px;
  height: 3px;
  background: var(--primary);
  margin: 16px auto 0;
  border-radius: 2px;
}

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

.advantage-card {
  text-align: center;
  padding: 40px 24px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.advantage-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.08), rgba(22, 93, 255, 0.15));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary);
}

.advantage-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.advantage-card p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.6;
}

/* ========== Products ========== */
.products-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.products-tab {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  cursor: pointer;
  border: 1px solid var(--border);
  background: white;
  color: var(--text-mid);
  transition: var(--transition);
}

.products-tab:hover,
.products-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

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

.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.product-img {
  height: 200px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8edf5 0%, #f0f4fa 100%);
  color: var(--primary);
  font-size: 3rem;
  opacity: 0.3;
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

.tag-hot {
  background: #F53F3F;
}

.tag-new {
  background: var(--accent);
}

.product-info {
  padding: 16px;
}

.product-info .brand {
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 4px;
  font-weight: 500;
}

.product-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-info p {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-info .product-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.product-info .detail-link {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
}

.product-info .detail-link:hover {
  color: var(--primary-dark);
}

.product-info .consult-link {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 500;
}

/* ========== Solutions ========== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  position: relative;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.solution-card-bg {
  position: absolute;
  inset: 0;
  transition: var(--transition);
}

.solution-card:nth-child(1) .solution-card-bg {
  background: linear-gradient(135deg, #1a3a6e, #2255a4);
}

.solution-card:nth-child(2) .solution-card-bg {
  background: linear-gradient(135deg, #1b4d3e, #2d7a5f);
}

.solution-card:nth-child(3) .solution-card-bg {
  background: linear-gradient(135deg, #4a2c6e, #6b42a0);
}

.solution-card:hover .solution-card-bg {
  transform: scale(1.05);
}

.solution-card-content {
  position: relative;
  z-index: 2;
  padding: 32px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: white;
}

.solution-card-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.solution-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.solution-card p {
  font-size: 0.9rem;
  opacity: 0.85;
  line-height: 1.6;
  margin-bottom: 16px;
}

.solution-card .learn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
}

.solution-card .learn-more:hover {
  color: white;
}

/* ========== Partners ========== */
.partners-scroll {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.partner-item {
  height: 90px;
  background: white;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  transition: var(--transition);
  padding: 16px;
  font-size: 0.85rem;
  color: var(--text-mid);
  font-weight: 500;
  text-align: center;
}

.partner-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  color: var(--primary);
}

/* ========== News ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-card {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.news-card:hover {
  box-shadow: var(--shadow);
  border-color: transparent;
}

.news-date-box {
  flex-shrink: 0;
  width: 70px;
  text-align: center;
  padding: 12px 8px;
  background: var(--bg-light);
  border-radius: var(--radius);
}

.news-date-box .day {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.news-date-box .month {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 4px;
}

.news-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-content p {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-content .news-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.75rem;
  background: rgba(22, 93, 255, 0.08);
  color: var(--primary);
  margin-top: 8px;
}

/* ========== CTA Section ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 70px 0;
  text-align: center;
  color: white;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 14px;
}

.cta-section p {
  font-size: 1.05rem;
  opacity: 0.85;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ========== Footer ========== */
.footer {
  background: #1a1f2e;
  color: rgba(255, 255, 255, 0.7);
  padding-top: 60px;
}

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

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

.footer-about p {
  font-size: 0.85rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.85rem;
}

.footer-contact-item .icon {
  color: var(--primary-light);
  margin-top: 2px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

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

.footer-qrcode {
  text-align: center;
}

.footer-qrcode .qr-placeholder {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: underline;
}

/* ========== Page: Products ========== */
.page-banner {
  margin-top: var(--header-height);
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a1628, #162a52, #1a3a6e);
  z-index: 0;
}

.page-banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
}

.page-banner-content h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.page-banner-content .breadcrumb {
  font-size: 0.9rem;
  opacity: 0.7;
}

.page-banner-content .breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.page-banner-content .breadcrumb a:hover {
  color: white;
}

.products-page {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 30px;
  padding: 40px 0;
}

.sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  align-self: start;
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 600;
  padding: 16px 20px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius) var(--radius) 0 0;
}

.category-list {
  background: white;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

.category-item {
  padding: 12px 20px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.category-item:last-child {
  border-bottom: none;
}

.category-item:hover,
.category-item.active {
  color: var(--primary);
  background: rgba(22, 93, 255, 0.04);
}

.category-item .count {
  font-size: 0.8rem;
  color: var(--text-light);
  background: var(--bg-light);
  padding: 2px 8px;
  border-radius: 10px;
}

.products-main .toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding: 12px 16px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.toolbar .result-count {
  font-size: 0.9rem;
  color: var(--text-mid);
}

.toolbar .sort-options {
  display: flex;
  gap: 8px;
}

.toolbar .sort-btn {
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 0.82rem;
  cursor: pointer;
  border: 1px solid var(--border);
  background: white;
  color: var(--text-mid);
  transition: var(--transition);
}

.toolbar .sort-btn:hover,
.toolbar .sort-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.products-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ========== Page: About ========== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-intro-text h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--text-dark);
}

.about-intro-text p {
  font-size: 0.95rem;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 14px;
}

.about-intro-image {
  height: 380px;
  background: linear-gradient(135deg, #e8edf5, #f0f4fa);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  overflow: hidden;
  position: relative;
}
.about-intro-image.has-image {
  background: transparent;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}
.about-intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.about-intro-image .about-intro-fallback {
  width: 140px;
  height: 140px;
  color: var(--primary);
  opacity: 0.6;
  stroke: currentColor;
  fill: none;
  stroke-width: 1;
}
.about-intro-image.has-image .about-intro-fallback {
  display: none;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
}

.stat-item {
  text-align: center;
  padding: 30px 16px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.stat-item .number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-item .number span {
  font-size: 1.2rem;
}

.stat-item .label {
  font-size: 0.9rem;
  color: var(--text-mid);
}

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

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--border);
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
  position: relative;
}

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

.timeline-dot {
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 3px var(--primary);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.timeline-content {
  width: 42%;
  padding: 20px 24px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.timeline-content:hover {
  box-shadow: var(--shadow);
}

.timeline-year {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.6;
}

/* ========== Page: News ========== */
.news-list-page {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 30px;
  padding: 40px 0;
}

.news-list .news-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.news-list .news-item:hover {
  box-shadow: var(--shadow);
  border-color: transparent;
}

.news-item .news-thumb {
  flex-shrink: 0;
  width: 220px;
  height: 140px;
  background: linear-gradient(135deg, #e8edf5, #f0f4fa);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

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

.news-item .news-body p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}

.news-item .news-meta {
  font-size: 0.8rem;
  color: var(--text-light);
  display: flex;
  gap: 16px;
}

.news-sidebar .widget {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  overflow: hidden;
}

.widget-title {
  padding: 14px 20px;
  font-size: 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

.widget-content {
  padding: 16px 20px;
}

.widget-content .tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.widget-content .tag {
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.82rem;
  background: var(--bg-light);
  color: var(--text-mid);
  cursor: pointer;
  transition: var(--transition);
}

.widget-content .tag:hover {
  background: var(--primary);
  color: white;
}

.widget-content .hot-news-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.widget-content .hot-news-item:last-child {
  border-bottom: none;
}

.widget-content .hot-news-item h4 {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.widget-content .hot-news-item .date {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 4px;
}

/* ========== Page: Contact ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 30px;
}

.contact-info-card {
  padding: 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  text-align: center;
}

.contact-info-card .icon {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.contact-info-card h4 {
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.contact-info-card p {
  font-size: 0.85rem;
  color: var(--text-mid);
}

.map-placeholder {
  height: 250px;
  background: linear-gradient(135deg, #e8edf5, #f0f4fa);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 1.2rem;
  border: 1px solid var(--border);
}

.contact-form {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border);
}

.contact-form h3 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  color: var(--text-dark);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.form-group label .required {
  color: #F53F3F;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-dark);
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ==============================================================
   在线咨询浮窗（Consult Widget）
   ============================================================== */
.consult-widget {
  position: fixed;
  right: 30px;
  bottom: 30px;
  z-index: 999;
  font-family: inherit;
}

/* ---- 主按钮 ---- */
.consult-main {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px 0 16px;
  height: 54px;
  min-width: 54px;
  border: none;
  border-radius: 27px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(22, 93, 255, 0.35);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.consult-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(22, 93, 255, 0.45);
}
.consult-main svg {
  width: 24px;
  height: 24px;
  color: #fff;
  flex-shrink: 0;
}
.consult-main-icon-close { display: none; }
.consult-main-label {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.panel-open .consult-main {
  background: #444;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}
.panel-open .consult-main-icon-open { display: none; }
.panel-open .consult-main-icon-close { display: block; }

/* 气泡呼吸动效（用户注意力引导） */
.consult-main::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 32px;
  border: 2px solid rgba(22, 93, 255, 0.35);
  animation: consult-pulse 2.2s ease-out infinite;
  pointer-events: none;
}
.panel-open .consult-main::before { display: none; }
@keyframes consult-pulse {
  0%   { transform: scale(1);    opacity: 0.7; }
  70%  { transform: scale(1.25); opacity: 0;   }
  100% { transform: scale(1.25); opacity: 0;   }
}

/* ---- 快捷按钮组（主按钮上方，垂直排列） ---- */
.consult-quicks {
  position: absolute;
  right: 0;
  bottom: 66px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}
.consult-quick {
  position: relative;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background: #fff;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 3px 12px rgba(0,0,0,0.12);
  text-decoration: none;
  transition: transform .2s, color .2s, background .2s, box-shadow .2s;
}
.consult-quick svg {
  width: 20px;
  height: 20px;
  color: currentColor;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}
.consult-quick-label {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
}
.consult-quick:hover {
  transform: translateY(-2px);
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(22, 93, 255, 0.35);
}
/* 悬停提示气泡 */
.consult-quick::after {
  content: attr(data-tip);
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  padding: 5px 12px;
  background: rgba(0,0,0,0.82);
  color: #fff;
  font-size: 0.78rem;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.consult-quick:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}
/* 回顶按钮：默认隐藏，滚动 400px 后由 .scrolled 显示 */
.consult-quick-top {
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s, transform .2s;
}
.consult-widget.scrolled .consult-quick-top {
  opacity: 1;
  visibility: visible;
}

/* ---- 微信二维码弹出 ---- */
.consult-wechat-pop {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) scale(0.9);
  transform-origin: right center;
  width: 200px;
  padding: 14px 14px 10px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.15);
  text-align: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s, transform .2s, visibility .2s;
  z-index: 10;
}
.consult-wechat-pop::after {
  content: "";
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 0; height: 0;
  border: 6px solid transparent;
  border-left-color: #fff;
}
.consult-quick-wechat:hover .consult-wechat-pop,
.consult-quick-wechat.show-pop .consult-wechat-pop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(-50%) scale(1);
}
.consult-quick-wechat:hover::after,
.consult-quick-wechat.show-pop::after { opacity: 0; }
.consult-wechat-title {
  font-size: 0.85rem;
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: 8px;
}
.consult-wechat-pop img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 4px;
  background: #f5f7fa;
}
.consult-wechat-tip {
  margin-top: 6px;
  font-size: 0.72rem;
  color: var(--text-light);
}
.consult-wechat-tip a { color: var(--primary); }

/* ---- 咨询面板 ---- */
.consult-panel {
  position: absolute;
  right: 0;
  bottom: 74px;
  width: 380px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.18);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.96);
  transform-origin: bottom right;
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
  overflow: hidden;
}
.panel-open .consult-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.consult-panel-header {
  padding: 18px 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.consult-panel-h {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.consult-panel-sub {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.85);
}
.consult-panel-close {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  opacity: 0.85;
  transition: opacity .2s;
}
.consult-panel-close:hover { opacity: 1; }

.consult-panel-body {
  padding: 18px 20px 20px;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
}
.consult-intro {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.65;
  padding: 12px 14px;
  background: #f5f7fa;
  border-radius: 6px;
  margin-bottom: 16px;
}

/* 表单 */
.consult-form .consult-field {
  margin-bottom: 12px;
}
.consult-form label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-dark);
  margin-bottom: 5px;
  font-weight: 500;
}
.consult-form .req {
  color: #e94b3c;
  margin-left: 2px;
}
.consult-form input,
.consult-form select,
.consult-form textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-dark);
  font-family: inherit;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.consult-form input:focus,
.consult-form select:focus,
.consult-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.12);
}
.consult-form textarea {
  resize: vertical;
  min-height: 72px;
}
.consult-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.consult-row .consult-field { margin-bottom: 12px; }

.consult-form-actions { margin-top: 6px; }
.btn-block { width: 100%; }

.consult-form-tip {
  margin-top: 10px;
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.6;
  text-align: center;
}
.consult-form-tip a { color: var(--primary); }

/* 提交成功状态 */
.consult-success {
  text-align: center;
  padding: 20px 10px;
}
.consult-success-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #16a34a;
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.consult-success-h {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.consult-success-desc {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 16px;
}
.consult-success-desc a { color: var(--primary); }

/* ========== Page Tabs ========== */
.page-tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 30px;
}

.page-tab {
  padding: 12px 24px;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--text-mid);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  font-family: inherit;
}

.page-tab:hover,
.page-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ========== Page Visibility ========== */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-arrow {
  transition: var(--transition);
  font-size: 0.8rem;
  color: var(--text-light);
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 20px 16px;
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.7;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-page {
    grid-template-columns: 1fr;
  }
  .about-intro {
    grid-template-columns: 1fr;
  }
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-list-page {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    gap: 4px;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 12px 16px;
    width: 100%;
    text-align: center;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-contact {
    display: none;
  }

  .hero-slider {
    height: 400px;
  }

  .hero-content h1 {
    font-size: 1.8rem;
  }

  .hero-content p {
    font-size: 0.95rem;
  }

  .hero-btns {
    flex-direction: column;
    gap: 10px;
  }

  .section {
    padding: 50px 0;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

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

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

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

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .cta-section h2 {
    font-size: 1.5rem;
  }

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

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: row;
    padding-left: 50px;
  }

  .timeline-dot {
    left: 20px;
  }

  .timeline-content {
    width: 100%;
  }

  .page-banner {
    height: 180px;
  }

  .page-banner-content h1 {
    font-size: 1.6rem;
  }

  .consult-widget {
    right: 12px;
    bottom: 12px;
  }
  .consult-main-label {
    display: none;
  }
  .consult-panel {
    right: 0;
    bottom: 78px;
    width: calc(100vw - 24px);
    max-width: 360px;
  }
  .consult-quicks {
    right: 62px;
  }
}

@media (max-width: 480px) {
  .products-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .news-item .news-thumb {
    display: none;
  }
}

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Loading ========== */
.page-loader {
  position: fixed;
  inset: 0;
  background: white;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s;
}

.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================================
   新增：真实图片接入 & 详情页 & 分页 & 灯箱
   ============================================================ */

/* --- Hero Banner 用真图作为背景 --- */
/* --- Hero 左右箭头 --- */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  z-index: 5;
  transition: var(--transition);
  backdrop-filter: blur(6px);
}
.hero-arrow:hover {
  background: rgba(255, 255, 255, 0.28);
}
.hero-arrow-prev { left: 30px; }
.hero-arrow-next { right: 30px; }

/* --- Logo 图片 --- */
.logo img {
  height: 96px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}

/* --- 合作品牌网格（logo 灰度 hover 彩色） --- */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.partner-logo {
  height: 90px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  transition: var(--transition);
  cursor: pointer;
}
.partner-logo img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: var(--transition);
}
.partner-logo:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.partner-logo:hover img {
  transform: scale(1.06);
}

/* --- 产品卡真图 --- */
.product-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  background: #fff;
  transition: transform 0.4s ease;
}
.product-card:hover .product-img img {
  transform: scale(1.05);
}

/* --- 产品中心侧边栏（搜索框、品牌区） --- */
.search-input {
  flex: 1;
  max-width: 320px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: var(--transition);
}
.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

/* --- 分页 --- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-mid);
  transition: var(--transition);
}
.page-btn:hover:not([disabled]) {
  border-color: var(--primary);
  color: var(--primary);
}
.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.page-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}
.page-ellipsis {
  padding: 0 8px;
  color: var(--text-light);
}

/* --- 产品详情页 --- */
.product-detail {
  padding: 40px 0 80px;
}
.pd-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.pd-gallery {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 16px;
  border: 1px solid var(--border);
}
.pd-main-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--bg-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 12px;
  cursor: zoom-in;
}
.pd-main-img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.pd-thumbs {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.pd-thumb {
  aspect-ratio: 1 / 1;
  background: var(--bg-light);
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.pd-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 4px;
}
.pd-thumb.active,
.pd-thumb:hover {
  border-color: var(--primary);
}

.pd-info { padding: 8px 0; }
.pd-brand {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.pd-title {
  font-size: 1.8rem;
  line-height: 1.35;
  margin-bottom: 16px;
  color: var(--text-dark);
}
.pd-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.pd-tag {
  padding: 4px 12px;
  background: rgba(22, 93, 255, 0.08);
  color: var(--primary);
  border-radius: 4px;
  font-size: 0.82rem;
}
.pd-tag-hot {
  background: rgba(255, 125, 0, 0.1);
  color: var(--accent);
}
.pd-intro {
  color: var(--text-mid);
  line-height: 1.75;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--bg-light);
  border-left: 3px solid var(--primary);
  border-radius: 4px;
}
.pd-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.pd-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 30px;
}
.pd-tab {
  padding: 14px 28px;
  background: transparent;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-mid);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}
.pd-tab:hover { color: var(--primary); }
.pd-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.pd-tab-pane {
  line-height: 1.85;
  color: var(--text-mid);
}
.pd-tab-pane h3 {
  color: var(--text-dark);
  font-size: 1.1rem;
  margin-bottom: 12px;
}
.pd-tab-pane p { margin-bottom: 12px; }

/* Tab 上的红点计数 */
.pd-tab-count {
  display: inline-block;
  min-width: 20px;
  padding: 0 6px;
  margin-left: 4px;
  background: var(--accent, #e94b3c);
  color: #fff;
  font-size: 0.75rem;
  line-height: 18px;
  border-radius: 10px;
  vertical-align: middle;
}

/* 产品详情 - 产品特点列表 */
.pd-features {
  list-style: none;
  margin: 0;
  padding: 0;
}
.pd-features li {
  position: relative;
  padding: 10px 12px 10px 32px;
  margin-bottom: 8px;
  background: #f8fafc;
  border-left: 3px solid var(--primary);
  border-radius: 4px;
  line-height: 1.7;
  color: var(--text-dark);
}
.pd-features li::before {
  content: "✓";
  position: absolute;
  left: 10px;
  top: 10px;
  color: var(--primary);
  font-weight: 700;
}

/* 产品详情 - 相关资料下载列表 */
.pd-download-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 12px;
}
.pd-download-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
.pd-download-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
  transform: translateY(-1px);
}
.pd-file-icon {
  flex: 0 0 44px;
  height: 44px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.5px;
}
.pd-file-pdf  { background: #e94b3c; }
.pd-file-doc, .pd-file-docx { background: #2b579a; }
.pd-file-xls, .pd-file-xlsx { background: #217346; }
.pd-file-zip, .pd-file-rar  { background: #b45309; }
.pd-file-meta { flex: 1; min-width: 0; }
.pd-file-title {
  font-weight: 600;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pd-file-sub {
  font-size: 0.85rem;
  color: var(--text-mid);
  margin-top: 2px;
}
.pd-file-btn {
  padding: 6px 14px;
  background: var(--primary);
  color: #fff;
  border-radius: 4px;
  font-size: 0.85rem;
  white-space: nowrap;
}

.pd-tag-doc { background: rgba(0,102,204,.08); color: var(--primary); }

/* --- 参数表 --- */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.specs-table th,
.specs-table td {
  padding: 12px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.specs-table th {
  width: 30%;
  background: var(--bg-light);
  color: var(--text-dark);
  font-weight: 600;
}
.specs-table td { color: var(--text-mid); }
.specs-table tr:last-child th,
.specs-table tr:last-child td { border-bottom: none; }
.specs-raw {
  white-space: pre-wrap;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius);
  font-family: inherit;
  line-height: 1.85;
  color: var(--text-mid);
  font-size: 0.95rem;
}

/* --- 新闻详情 --- */
.news-detail {
  max-width: 860px;
  margin: 40px auto 60px;
  padding: 0 20px;
}
.news-article h1 {
  font-size: 1.8rem;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: 16px;
}
.news-article-meta {
  display: flex;
  gap: 20px;
  color: var(--text-light);
  font-size: 0.9rem;
  padding-bottom: 20px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--border);
}
.news-article-body {
  color: var(--text-mid);
  line-height: 2;
  font-size: 1rem;
}
.news-article-body p { margin-bottom: 16px; }
.news-nav {
  display: flex;
  justify-content: space-between;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.news-nav a {
  color: var(--primary);
  font-size: 0.95rem;
}
.news-nav a:hover { text-decoration: underline; }

/* --- 灯箱 --- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  width: 44px;
  height: 44px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: 50%;
  font-size: 1.8rem;
  cursor: pointer;
}

/* --- 空态提示 --- */
.empty-tip {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
  font-size: 0.95rem;
  grid-column: 1 / -1;
}
.download-placeholder {
  text-align: center;
  padding: 60px 20px;
}

/* --- 资料下载中心 --- */
.download-toolbar {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #eef1f6;
}
.download-toolbar .search-input {
  flex: 1;
  min-width: 240px;
  max-width: 360px;
}
.download-categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.download-cat-btn {
  padding: 6px 14px;
  background: #f5f7fa;
  border: 1px solid #e5e8ee;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}
.download-cat-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.download-cat-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.download-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.download-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid #eef1f6;
  border-radius: 8px;
  transition: all 0.2s;
}
.download-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(22, 93, 255, 0.08);
  transform: translateY(-2px);
}
.download-item .file-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}
.download-item .file-icon.pdf { background: #E34C4C; }
.download-item .file-icon.doc,
.download-item .file-icon.docx { background: #2B7CD3; }
.download-item .file-icon.xls,
.download-item .file-icon.xlsx { background: #1F8B4C; }
.download-item .file-icon.zip,
.download-item .file-icon.rar { background: #8B5CF6; }
.download-item .file-icon.other { background: #6B7280; }

.download-item .file-meta {
  flex: 1;
  min-width: 0;
}
.download-item .file-title {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.4;
}
.download-item .file-sub {
  font-size: 0.78rem;
  color: var(--text-light);
  display: flex;
  gap: 10px;
}
.download-item .file-sub .tag {
  padding: 1px 8px;
  background: #f5f7fa;
  border-radius: 3px;
  color: var(--text-secondary);
}
.download-item .file-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  background: var(--primary);
  color: #fff;
  border-radius: 6px;
  font-size: 0.85rem;
  text-decoration: none;
  transition: background 0.2s;
}
.download-item .file-btn:hover {
  background: #0e4bd6;
}
.download-item .file-btn svg {
  width: 14px;
  height: 14px;
}

.download-tip {
  margin-top: 28px;
  padding: 14px 20px;
  background: #f5f9ff;
  border-left: 3px solid var(--primary);
  border-radius: 4px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.download-tip .tip-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--primary);
}
.download-tip a {
  color: var(--primary);
  font-weight: 500;
}

@media (max-width: 640px) {
  .download-toolbar { padding: 12px; }
  .download-toolbar .search-input { min-width: 100%; max-width: 100%; }
  .download-list { grid-template-columns: 1fr; }
}

/* --- 响应式：产品详情 --- */
@media (max-width: 1024px) {
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
  .pd-top { grid-template-columns: 1fr; gap: 24px; }
  .pd-thumbs { grid-template-columns: repeat(8, 1fr); }
}
@media (max-width: 768px) {
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-arrow { display: none; }
  .pd-title { font-size: 1.4rem; }
  .pd-tabs { overflow-x: auto; }
  .pd-tab { padding: 12px 18px; font-size: 0.9rem; white-space: nowrap; }
  .search-input { max-width: 100%; }
  .toolbar { flex-direction: column; align-items: stretch; gap: 12px; }
}
@media (max-width: 480px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .pd-thumbs { grid-template-columns: repeat(4, 1fr); }
  .pd-actions { flex-direction: column; }
  .pd-actions .btn { width: 100%; }
}

/* 移动端 Logo 缩小，避免撑爆 header */
@media (max-width: 768px) {
  :root { --header-height: 72px; }
  .logo { font-size: 1.05rem; gap: 8px; }
  .logo img { height: 56px; max-width: 120px; }
}

/* ============================================================
   SVG 图标统一样式（专业线性图标替代 emoji）
   ============================================================ */

/* 优势卡片图标：36×36 蓝色线条 */
.advantage-icon svg {
  width: 36px;
  height: 36px;
  color: var(--primary);
  stroke: currentColor;
  fill: none;
}

/* 解决方案卡片图标：叠白色框、稍大 */
.solution-card-icon svg {
  width: 44px;
  height: 44px;
  color: #fff;
  stroke: currentColor;
  fill: none;
}
.solution-card-icon {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 0;
}

/* 联系我们卡片图标 */
.contact-info-card .icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.1), rgba(22, 93, 255, 0.18));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.contact-info-card .icon svg {
  width: 26px;
  height: 26px;
  color: var(--primary);
  stroke: currentColor;
  fill: none;
}

/* Header 电话前小图标 */
.header-phone svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  stroke: currentColor;
  fill: none;
  margin-right: 6px;
  vertical-align: -2px;
}

/* 关于我们大楼占位 */
.about-intro-image svg {
  width: 140px;
  height: 140px;
  color: var(--primary);
  opacity: 0.6;
  stroke: currentColor;
  fill: none;
  stroke-width: 1;
}

/* 页脚联系方式 */
.footer-contact-item .icon {
  width: 16px;
  height: 16px;
  color: var(--primary-light);
  stroke: currentColor;
  fill: none;
  flex-shrink: 0;
  margin-top: 4px;
}

/* 新闻缩略图 */
.news-item .news-thumb svg {
  width: 56px;
  height: 56px;
  color: var(--primary);
  opacity: 0.5;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.2;
}
.news-item .news-thumb {
  display: flex !important;
  align-items: center;
  justify-content: center;
}

/* 新闻元信息小图标 */
.news-meta svg.meta-icon,
.news-article-meta svg.meta-icon {
  width: 14px;
  height: 14px;
  color: var(--text-light);
  stroke: currentColor;
  fill: none;
  vertical-align: -2px;
  margin-right: 4px;
}

/* 按钮内嵌图标 */
.btn-icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  vertical-align: -3px;
  margin-right: 4px;
}

/* 产品占位图标 */
.product-img-placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--text-light);
  opacity: 0.5;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.2;
}

/* 地图占位 */
.map-placeholder-icon {
  width: 40px;
  height: 40px;
  color: var(--primary);
  stroke: currentColor;
  fill: none;
  margin-right: 10px;
  vertical-align: -12px;
}

/* 空态图标 */
.empty-tip .empty-icon {
  width: 48px;
  height: 48px;
  color: var(--text-light);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.2;
  display: block;
  margin: 0 auto 12px;
  opacity: 0.6;
}

/* =========================================================
   关于我们 - 发展历程时间轴（独立宽度控制）
   ≥1600px: 双列，容器 1800px 上限
   1200-1599px: 双列，容器 (100vw - 96px)，铺满窗口
   901-1199px: 单列，竖轴在左，卡片全宽
   ≤900px:    单列，卡片内部图文上下堆叠
   ========================================================= */
.timeline-wrap {
  width: 100%;
  padding: 0 48px;
  box-sizing: border-box;
}
.timeline {
  position: relative;
  max-width: 2200px;
  margin: 0 auto;
  padding: 20px 0;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(to bottom,
    rgba(22, 93, 255, 0) 0%,
    rgba(22, 93, 255, 0.35) 8%,
    rgba(22, 93, 255, 0.35) 92%,
    rgba(22, 93, 255, 0) 100%);
  transform: translateX(-50%);
}
.timeline-item {
  position: relative;
  width: 50%;
  padding: 24px 36px 24px 0;
  box-sizing: border-box;
}
.timeline-item:nth-child(even) {
  padding: 24px 0 24px 36px;
}
.timeline-item:nth-child(odd)  { left: 0; }
.timeline-item:nth-child(even) { left: 50%; }
.timeline-dot {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.22);
  z-index: 2;
}
/* dot 始终贴中轴：奇数项相对 item 右边缘对齐（item 靠左，右缘就是中轴）；
   偶数项相对 item 左边缘对齐（item 靠右，左缘就是中轴）。 */
.timeline-item:nth-child(odd)  .timeline-dot { right: -8px;  left: auto; }
.timeline-item:nth-child(even) .timeline-dot { left:  -8px;  right: auto; }

/* 卡片内部：图片左、文字右（偶数项反转），高度由图片自然撑起 */
.timeline-content {
  display: flex;
  gap: 0;
  background: #fff;
  border-radius: 10px;
  border: 1px solid #eef1f6;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
  transition: all 0.3s;
  overflow: hidden;
  align-items: stretch;
}
.timeline-content:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 28px rgba(22, 93, 255, 0.12);
  transform: translateY(-3px);
}
.timeline-item:nth-child(even) .timeline-content {
  flex-direction: row-reverse;
}
.timeline-img {
  flex: 0 0 60%;
  overflow: hidden;
  background: #fff;
  display: block;
  line-height: 0;
}
.timeline-img img {
  width: 100%;
  height: auto;
  object-fit: contain;
  transition: transform 0.6s ease;
  display: block;
}
.timeline-content:hover .timeline-img img {
  transform: scale(1.03);
}
.timeline-text {
  flex: 1 1 auto;
  min-width: 0;
  padding: 22px 24px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.timeline-year-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.timeline-year {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.timeline-period {
  display: inline-block;
  padding: 3px 9px;
  background: rgba(22, 93, 255, 0.08);
  color: var(--primary);
  font-size: 0.75rem;
  border-radius: 3px;
  white-space: nowrap;
}
.timeline-title {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}
.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 中屏（≤1279px）：单列竖轴布局，卡片全宽，内部仍图左文右
   注意用 !important 强制覆盖，避免 nth-child 优先级问题 */
@media (max-width: 1279px) {
  .timeline-wrap {
    padding: 0 24px;
  }
  .timeline::before {
    left: 22px !important;
    transform: none !important;
  }
  .timeline-item {
    width: 100% !important;
    left: 0 !important;
    padding: 18px 0 18px 56px !important;
  }
  .timeline-item .timeline-dot {
    left: 15px !important;
    right: auto !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
  }
  .timeline-item:nth-child(even) .timeline-content {
    flex-direction: row;
  }
  .timeline-img {
    flex: 0 0 55%;
  }
}

/* 中大屏容器边距（1280-1599px） */
@media (max-width: 1599px) and (min-width: 1280px) {
  .timeline-wrap {
    padding: 0 40px;
  }
}

/* 手机（≤900px）：卡片内图文改上下堆叠，卡片全宽 */
@media (max-width: 900px) {
  .timeline-wrap {
    padding: 0 16px;
  }
  .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    flex-direction: column;
  }
  .timeline-img,
  .timeline-item:nth-child(even) .timeline-img {
    flex: 0 0 auto;
    width: 100%;
  }
  .timeline-text {
    padding: 16px;
  }
}

/* =========================================================
   关于我们 - 荣誉资质
   ========================================================= */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.honor-card {
  background: #fff;
  border: 1px solid #eef1f6;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s;
  cursor: pointer;
}
.honor-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.12);
  transform: translateY(-4px);
}
.honor-card .honor-img {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, #f5f7fa, #eef1f6);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.honor-card .honor-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  box-sizing: border-box;
}
.honor-card .honor-placeholder {
  text-align: center;
  padding: 20px;
  color: var(--text-light);
}
.honor-card .honor-placeholder svg {
  width: 56px;
  height: 56px;
  color: var(--primary);
  opacity: 0.4;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.2;
  margin-bottom: 12px;
}
.honor-card .honor-placeholder .badge-year {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(22, 93, 255, 0.08);
  color: var(--primary);
  font-size: 0.75rem;
  border-radius: 3px;
  margin-top: 8px;
  letter-spacing: 0.5px;
}
.honor-card .honor-meta {
  padding: 14px 16px;
  border-top: 1px solid #eef1f6;
}
.honor-card .honor-title {
  font-size: 0.92rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 4px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}
.honor-card .honor-issuer {
  font-size: 0.78rem;
  color: var(--text-light);
}

/* =========================================================
   关于我们 - 核心团队
   ========================================================= */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.team-card {
  background: #fff;
  border: 1px solid #eef1f6;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: all 0.3s;
}
.team-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.1);
  transform: translateY(-4px);
}
.team-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.1), rgba(22, 93, 255, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 3px solid #fff;
  box-shadow: 0 4px 16px rgba(22, 93, 255, 0.12);
}
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-avatar svg {
  width: 48px;
  height: 48px;
  color: var(--primary);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.4;
  opacity: 0.65;
}
.team-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.team-title {
  font-size: 0.82rem;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}
.team-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  text-align: left;
}

/* ============================================================
   方案详情页 (Solution Detail)
   ============================================================ */
.solution-banner {
  background: linear-gradient(120deg, #0f2b6b 0%, #165DFF 60%, #4080FF 100%);
  color: #fff;
}
.solution-banner .page-banner-bg { opacity: 0.25; }
.solution-banner-sub {
  margin-top: 16px;
  font-size: 1rem;
  color: rgba(255,255,255,0.9);
  max-width: 900px;
}

.sd-intro {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-mid);
  padding: 28px 32px;
  background: #f8fafc;
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  margin-bottom: 40px;
}

.sd-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.sd-chip {
  padding: 8px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-dark);
  font-size: 0.95rem;
  transition: var(--transition);
}
.sd-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sd-pains {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}
.sd-pains li {
  padding: 16px 20px 16px 44px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  position: relative;
  line-height: 1.7;
  color: var(--text-dark);
}
.sd-pains li::before {
  content: "!";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  line-height: 22px;
  text-align: center;
  color: #fff;
  background: var(--accent);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
}

.sd-module {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  margin-top: 24px;
  transition: var(--transition);
}
.sd-module:hover { box-shadow: 0 8px 32px rgba(22, 93, 255, 0.08); }
.sd-module-title {
  font-size: 1.25rem;
  color: var(--text-dark);
  margin-bottom: 10px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}
.sd-module-desc {
  color: var(--text-mid);
  line-height: 1.85;
  margin-bottom: 16px;
}
.sd-cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.sd-cat-tag {
  padding: 4px 12px;
  background: rgba(22, 93, 255, 0.08);
  color: var(--primary);
  border-radius: 4px;
  font-size: 0.85rem;
  text-decoration: none;
  transition: var(--transition);
}
.sd-cat-tag:hover {
  background: var(--primary);
  color: #fff;
}

.sd-related-products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin-top: 8px;
}
.sd-related-item {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: var(--transition);
  background: #fff;
}
.sd-related-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  border-color: var(--primary);
}
.sd-related-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sd-related-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.sd-related-img .product-img-placeholder svg {
  width: 40px;
  height: 40px;
  color: var(--text-light);
}
.sd-related-name {
  padding: 10px 12px;
  font-size: 0.88rem;
  color: var(--text-dark);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3em;
}

.sd-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.sd-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 20px;
  background: linear-gradient(135deg, rgba(22,93,255,.04) 0%, rgba(22,93,255,.10) 100%);
  border-radius: 10px;
  color: var(--text-dark);
  line-height: 1.7;
}
.sd-highlight-icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.sd-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.sd-case {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px 24px;
  position: relative;
}
.sd-case::before {
  content: "\201C";
  position: absolute;
  top: 8px;
  right: 20px;
  font-size: 3rem;
  color: rgba(22,93,255,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}
.sd-case-name {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  font-size: 1.02rem;
}
.sd-case-value {
  color: var(--text-mid);
  line-height: 1.75;
}

.sd-cta {
  margin-top: 60px;
  padding: 40px 32px;
  text-align: center;
  background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%);
  color: #fff;
  border-radius: 14px;
}
.sd-cta h3 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 10px;
}
.sd-cta p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
}
.sd-cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.sd-cta .btn-primary {
  background: #fff;
  color: var(--primary);
}
.sd-cta .btn-primary:hover {
  background: rgba(255,255,255,0.9);
}

@media (max-width: 720px) {
  .sd-intro { padding: 18px 20px; font-size: 1rem; }
  .sd-module { padding: 20px 18px; }
  .sd-cta { padding: 28px 20px; }
  .sd-cta h3 { font-size: 1.2rem; }
}