/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: #2D3748;
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== Variables ===== */
:root {
  --primary: #1B3A5C;
  --accent: #CCCC;
  --bg-alt: #F5F7FA;
  --text: #2D3748;
  --text-heading: #1A202C;
  --text-light: #718096;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --transition: all 0.3s ease-out;
}

/* ===== Typography ===== */
h1, h2, h3, h4 { color: var(--text-heading); font-weight: 700; line-height: 1.3; }
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }

/* ===== Layout ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

.section { padding: 4rem 0; }
@media (min-width: 768px) { .section { padding: 5rem 0; } }
@media (min-width: 1024px) { .section { padding: 6rem 0; } }

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-align: center;
  margin-bottom: 0.5rem;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  text-align: center;
  margin-bottom: 1rem;
}
.section-subtitle {
  text-align: center;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  gap: 0.5rem;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #aaaa; }
.btn-secondary { background: var(--primary); color: #fff; }
.btn-secondary:hover { background: #15304d; }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-white-outline { border: 2px solid rgba(255,255,255,0.4); color: #fff; background: transparent; }
.btn-white-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); }

/* ===== Header / Navbar ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.header.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
@media (min-width: 1024px) { .header-inner { height: 72px; } }

.logo { display: flex; align-items: center; gap: 0.5rem; }
.logo-icon {
  width: 45px; height: 45px;
  /*background: var(--primary);*/
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.logo-icon svg { width: 20px; height: 20px; color: #fff; }
.logo-text { font-size: 0.95rem; font-weight: 700; color: var(--primary); line-height: 1.2; }
.logo-sub { font-size: 0.65rem; color: var(--text-light); }

.nav-desktop { display: none; }
@media (min-width: 1024px) {
  .nav-desktop { display: flex; align-items: center; gap: 0.25rem; }
}
.nav-desktop a {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4a5568;
  border-radius: var(--radius);
  transition: var(--transition);
}
.nav-desktop a:hover, .nav-desktop a.active { color: var(--primary); background: #f7fafc; }

/* Dropdown Menu */
.nav-item { position: relative; }
.nav-item > a {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-item > a .dropdown-arrow {
  width: 12px;
  height: 12px;
  transition: transform 0.2s;
}
.nav-item:hover > a .dropdown-arrow { transform: rotate(180deg); }
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: 100;
}
.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  color: #4a5568;
  white-space: nowrap;
  border-radius: 0;
}
.dropdown-menu a:hover {
  background: #f7fafc;
  color: var(--primary);
}

/* Mobile Dropdown */
@media (max-width: 1023px) {
  .nav-mobile .nav-item > a { justify-content: space-between; }
  .nav-mobile .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: #f8fafc;
    display: none;
    padding: 0;
  }
  .nav-mobile .nav-item.open .dropdown-menu { display: block; }
  .nav-mobile .dropdown-menu a { padding-left: 2rem; font-size: 0.85rem; }
}

.nav-actions { display: flex; align-items: center; gap: 0.5rem; }
.lang-btn {
  display: flex; align-items: center; gap: 0.25rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: #4a5568;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}
.lang-btn:hover { border-color: var(--primary); color: var(--primary); }
.lang-btn svg { width: 16px; height: 16px; }

.cta-desktop { display: none; }
@media (min-width: 1024px) { .cta-desktop { display: inline-flex; } }

/* Mobile Menu */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  color: #4a5568;
}
.menu-toggle svg { width: 24px; height: 24px; }
@media (min-width: 1024px) { .menu-toggle { display: none; } }

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0; right: 0; bottom: 0;
  background: #fff;
  z-index: 999;
  padding: 1.5rem;
  overflow-y: auto;
}
.mobile-menu.open { display: block; }
@media (min-width: 1024px) { .mobile-menu { display: none !important; } }
.mobile-menu a {
  display: block;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: #4a5568;
  border-radius: var(--radius);
  margin-bottom: 0.25rem;
}
.mobile-menu a:hover { background: #f7fafc; color: var(--primary); }
.mobile-menu .btn { width: 100%; margin-top: 1rem; }

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 500px;
  overflow: hidden;
}
@media (min-width: 640px) { .hero { height: 560px; } }
@media (min-width: 1024px) { .hero { height: 760px; } }

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  /*background: linear-gradient(to right, rgba(27,58,92,0.9) 0%, rgba(27,58,92,0.6) 50%, transparent 100%); 颜色渐变*/
}
.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}
.hero-text { max-width: 600px; }
.hero-text h1 { color: #fff; margin-bottom: 0.5rem; }
.hero-text h1 span { color: var(--accent); display: block; margin-top: 0.5rem; }
.hero-text p { color: #e2e8f0; font-size: 1rem; margin-top: 1rem; line-height: 1.7; }
@media (min-width: 768px) { .hero-text p { font-size: 1.1rem; } }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.hero-actions .btn { padding: 0.875rem 2rem; font-size: 1rem; }

.hero-dots {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 3;
}
.hero-dot {
  width: 12px; height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.5);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.hero-dot.active { width: 32px; background: var(--accent); }

/* ===== Stats Bar ===== */
.stats-bar { background: var(--primary); padding: 2.5rem 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-item { text-align: center; }
.stat-value { font-size: 2rem; font-weight: 800; color: var(--accent); }
@media (min-width: 768px) { .stat-value { font-size: 2.5rem; } }
.stat-label { font-size: 0.85rem; color: #a0aec0; margin-top: 0.25rem; }

/* ===== Cards ===== */
.card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-img {
  position: relative;
  height: 360px;
  overflow: hidden;
}
.card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.card:hover .card-img img { transform: scale(1.05); }
.card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, transparent 50%);
}
.card-body { padding: 1.25rem; }
.card-body h3 { font-size: 1rem; margin-bottom: 0.5rem; transition: var(--transition); }
.card:hover .card-body h3 { color: var(--accent); }
.card-body p { font-size: 0.85rem; color: var(--text-light); line-height: 1.5; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 0.75rem;
}
.card-link svg { width: 14px; height: 14px; transition: transform 0.2s; }
.card:hover .card-link svg { transform: translateX(4px); }

/* ===== Grids ===== */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ===== About Preview ===== */
.about-preview { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
@media (min-width: 1024px) { .about-preview { grid-template-columns: 1fr 1fr; gap: 4rem; } }
.about-preview-img { position: relative; }
.about-preview-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-badge {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  background: var(--accent);
  color: #fff;
  padding: 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: none;
}
@media (min-width: 640px) { .about-badge { display: block; } }
.about-badge .badge-value { font-size: 1.75rem; font-weight: 800; }
.about-badge .badge-label { font-size: 0.8rem; opacity: 0.9; }

/* ===== Advantage Card ===== */
.advantage-card {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid #edf2f7;
  transition: var(--transition);
  background: #fff;
}
.advantage-card:hover { border-color: rgba(232,119,34,0.3); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.advantage-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius);
  background: rgba(27,58,92,0.05);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.advantage-icon svg { width: 28px; height: 28px; }
.advantage-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.advantage-card p { font-size: 0.85rem; color: var(--text-light); line-height: 1.6; }

/* ===== News Card ===== */
.news-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-card-body { padding: 1.25rem; }
.news-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(232,119,34,0.1);
  border-radius: 3px;
}
.news-card h3 { font-size: 0.9rem; margin-top: 0.75rem; line-height: 1.4; }
.news-card p { font-size: 0.8rem; color: var(--text-light); margin-top: 0.5rem; line-height: 1.5; }
.news-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 1rem; }
.news-date { font-size: 0.75rem; color: #a0aec0; }
.news-more { font-size: 0.75rem; font-weight: 500; color: var(--accent); }

/* ===== CTA Section ===== */
.cta-section {
  background: var(--primary);
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.1;
}
.cta-section .container { position: relative; z-index: 1; text-align: center; }
.cta-section h2 { color: #fff; margin-bottom: 1rem; }
.cta-section p { color: #a0aec0; margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }

/* ===== Page Header ===== */
.page-header {
  background: var(--primary);
  /*background-image: url('/b4.png');*/
  background-size: cover;
  background-position: center; /* 确保图片在容器中居中 */
  padding: 5rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-top: 64px;
}
@media (min-width: 1024px) { .page-header { margin-top: 72px; padding: 6rem 0 3.5rem; } }
.page-header::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.08;
}
.page-header h1 { color: #fff; position: relative; z-index: 1; text-shadow:-1px -1px 0 #333,1px -1px 0 #333,-1px  1px 0 #333,1px  1px 0 #333;}
.page-header p { color: #1B3A5C; margin-top: 0.75rem; position: relative; z-index: 1; /*text-shadow:-1px -1px 0 #333,1px -1px 0 #333,-1px  1px 0 #333,1px  1px 0 #333;*/}

/* ===== Footer ===== */
.footer { background: var(--primary); color: #fff; padding: 3.5rem 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 3rem; } }
.footer h4 { font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 1rem; color: #fff; }
.footer p, .footer a { font-size: 0.85rem; color: #a0aec0; }
.footer a:hover { color: #fff; }
.footer ul li { margin-bottom: 0.5rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 2.5rem; padding: 1.25rem 0; text-align: center; }
.footer-bottom p { font-size: 0.75rem; color: #718096; }

.footer-social { display: flex; gap: 0.75rem; margin-top: 1rem; }
.footer-social a {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); }
.footer-social svg { width: 14px; height: 14px; color: #fff; }

.footer-contact-item { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.75rem; }
.footer-contact-item svg { width: 14px; height: 14px; color: var(--accent); margin-top: 2px; flex-shrink: 0; }

/* ===== Contact Page ===== */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 2fr 3fr; } }

.contact-info-item { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1.5rem; }
.contact-info-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  background: rgba(27,58,92,0.05);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info-icon svg { width: 20px; height: 20px; color: var(--primary); }
.contact-info-item h4 { font-size: 0.85rem; margin-bottom: 0.15rem; }
.contact-info-item p { font-size: 0.85rem; color: var(--text-light); }

.contact-form {
  background: var(--bg-alt);
  padding: 2rem;
  border-radius: var(--radius);
}
@media (min-width: 768px) { .contact-form { padding: 2.5rem; } }
.form-row { display: grid; grid-template-columns: 1fr; gap: 1rem; margin-bottom: 1rem; }
@media (min-width: 640px) { .form-row { grid-template-columns: 1fr 1fr; } }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.35rem; color: #4a5568; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius);
  background: #fff;
  transition: var(--transition);
  font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232,119,34,0.15);
}
.form-group textarea { resize: none; min-height: 120px; }

/* ===== Product Tabs ===== */
.product-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; margin-bottom: 3rem; }
.product-tab {
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  background: #edf2f7;
  color: #4a5568;
  transition: var(--transition);
}
.product-tab.active, .product-tab:hover { background: var(--primary); color: #fff; }

/* ===== Certifications ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 640px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .cert-grid { grid-template-columns: repeat(5, 1fr); } }
.cert-item {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.cert-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(27,58,92,0.05);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 0.75rem;
}
.cert-icon svg { width: 24px; height: 24px; color: var(--primary); }
.cert-item span { font-size: 0.8rem; font-weight: 600; color: var(--text-heading); }

/* ===== Application Tags ===== */
.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 640px) { .app-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .app-grid { grid-template-columns: repeat(6, 1fr); } }
.app-item {
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--bg-alt);
  text-align: center;
  transition: var(--transition);
  cursor: default;
}
.app-item:hover { background: var(--primary); color: #fff; }
.app-item:hover span { color: #fff; }
.app-item svg { width: 24px; height: 24px; margin: 0 auto 0.5rem; color: var(--primary); }
.app-item:hover svg { color: #fff; }
.app-item span { font-size: 0.8rem; font-weight: 500; color: var(--text-heading); transition: var(--transition); }

/* ===== News List Page ===== */
.news-list-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 1024px) { .news-list-grid { grid-template-columns: 2fr 1fr; } }
.news-article {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid #edf2f7;
  transition: var(--transition);
  margin-bottom: 1rem;
}
.news-article:hover { border-color: rgba(232,119,34,0.3); transform: translateY(-2px); box-shadow: var(--shadow); }
.news-article h2 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.news-article h2:hover { color: var(--accent); cursor: pointer; }
.news-article p { font-size: 0.85rem; color: var(--text-light); line-height: 1.6; }

.sidebar-card {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid #edf2f7;
  margin-bottom: 1.5rem;
}
.sidebar-card h3 { font-size: 1rem; margin-bottom: 1rem; }
.sidebar-cta { background: var(--primary); color: #fff; border: none; }
.sidebar-cta h3 { color: #fff; }
.sidebar-cta p { color: #a0aec0; font-size: 0.85rem; margin-bottom: 1rem; }
.sidebar-cta .btn { width: 100%; }

/* ===== Utility ===== */
.bg-alt { background: var(--bg-alt); }
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.hidden { display: none; }

/* ===== Strength Page ===== */
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { margin-bottom: 0.75rem; }
.section-header p { color: var(--text-light); max-width: 600px; margin: 0 auto; }

.strength-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) { .strength-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .strength-grid { grid-template-columns: repeat(4, 1fr); } }

.strength-card {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--transition);
}
.strength-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(232,119,34,0.3); }
.strength-card-icon { width: 48px; height: 48px; margin: 0 auto 1rem; color: var(--accent); }
.strength-card-icon svg { width: 100%; height: 100%; }
.strength-card-number { font-size: 2.5rem; font-weight: 800; color: var(--primary); margin-bottom: 0.5rem; }
.strength-card h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.strength-card p { font-size: 0.85rem; color: var(--text-light); }

/* Timeline */
.timeline { position: relative; padding-left: 2rem; }
@media (min-width: 768px) { .timeline { padding-left: 3rem; } }
.timeline::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
}
@media (min-width: 768px) { .timeline::before { left: 1rem; } }
.timeline-item { position: relative; margin-bottom: 2rem; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -1.65rem;
  top: 0.5rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--primary);
}
@media (min-width: 768px) { .timeline-dot { left: -2.15rem; } }
.timeline-content {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: var(--transition);
}
.timeline-content:hover { box-shadow: var(--shadow); border-color: rgba(232,119,34,0.2); }
.timeline-content h3 { font-size: 1.1rem; color: var(--primary); margin-bottom: 0.5rem; }
.timeline-content p { font-size: 0.9rem; color: var(--text-light); }

/* Showcase */
.strength-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) { .strength-showcase { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .strength-showcase { grid-template-columns: repeat(4, 1fr); } }
.showcase-item {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.showcase-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.showcase-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.showcase-number { font-size: 2rem; font-weight: 800; color: rgba(27,58,92,0.1); margin-bottom: 0.5rem; }
.showcase-item h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.showcase-item p { font-size: 0.85rem; color: var(--text-light); }

/* Honor Grid */
.honor-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) { .honor-grid { grid-template-columns: repeat(3, 1fr); } }
.honor-item {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}
.honor-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(232,119,34,0.3); }
.honor-icon { width: 40px; height: 40px; margin: 0 auto 1rem; color: var(--accent); }
.honor-icon svg { width: 100%; height: 100%; }
.honor-item h4 { font-size: 0.95rem; margin-bottom: 0.5rem; color: var(--primary); }
.honor-item p { font-size: 0.8rem; color: var(--text-light); }

/* ===== Cooperation Page ===== */
.cooperation-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) { .cooperation-grid { grid-template-columns: repeat(3, 1fr); } }

.cooperation-card {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
}
.cooperation-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cooperation-card.featured { border-color: var(--accent); border-width: 2px; }
.cooperation-card-badge {
  position: absolute;
  top: -0.75rem;
  right: 1rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
}
.cooperation-card-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.cooperation-card-icon { width: 48px; height: 48px; color: var(--primary); flex-shrink: 0; }
.cooperation-card-icon svg { width: 100%; height: 100%; }
.cooperation-card h3 { font-size: 1.2rem; }
.cooperation-card > p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 1.5rem; }
.cooperation-list { padding-left: 0; }
.cooperation-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--text);
}
.cooperation-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* Partner Map */
.partner-map {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) { .partner-map { grid-template-columns: repeat(3, 1fr); } }
.map-region {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}
.map-region:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(232,119,34,0.3); }
.region-number { font-size: 2rem; font-weight: 800; color: var(--accent); margin-bottom: 0.25rem; }
.region-name { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 0.5rem; }
.map-region p { font-size: 0.8rem; color: var(--text-light); }

/* Process Steps */
.process-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.process-step {
  flex: 1 1 180px;
  max-width: 220px;
  text-align: center;
  position: relative;
}
.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}
.process-step h3 { font-size: 0.95rem; margin-bottom: 0.5rem; }
.process-step p { font-size: 0.8rem; color: var(--text-light); }

/* Support Grid */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) { .support-grid { grid-template-columns: repeat(4, 1fr); } }
.support-item {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}
.support-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.support-icon { width: 40px; height: 40px; margin: 0 auto 1rem; color: var(--accent); }
.support-icon svg { width: 100%; height: 100%; }


/* ===== Video Center Styles ===== */
.video-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}
.video-tab {
  padding: 0.6rem 1.5rem;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}
.video-tab:hover { border-color: var(--primary); color: var(--primary); }
.video-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) { .video-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .video-grid { grid-template-columns: repeat(3, 1fr); } }
.video-card {
  background: #fff;
  border: 1px solid #edf2f7;
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.video-thumbnail {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.video-card:hover .video-thumbnail img { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(27, 58, 92, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: var(--transition);
}
.video-play-btn svg { width: 30px; height: 30px; }
.video-card:hover .video-play-btn { background: var(--accent); }
.video-duration {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
}
.video-info {
  padding: 1.25rem;
}
.video-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}
.video-info p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}
.video-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: #f0f4f8;
  color: var(--primary);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}
.support-item h4 { font-size: 0.95rem; margin-bottom: 0.5rem; }
.support-item p { font-size: 0.8rem; color: var(--text-light); }


/* ===== Strength 3x3 Grid ===== */
.strength-grid-3x3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.strength-item {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.strength-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.strength-item-img {
  width: 100%;
  height: 360px;
  overflow: hidden;
}
.strength-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.strength-item:hover .strength-item-img img {
  transform: scale(1.05);
}
.strength-item-content {
  padding: 1.25rem;
}
.strength-item-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}
.strength-item-content p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
}
@media (max-width: 768px) {
  .strength-grid-3x3 {
    grid-template-columns: 1fr;
  }
}

/* ===== Video Modal ===== */
.video-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
.video-modal.active {
  display: flex;
}
.video-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
}
.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}
.video-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: var(--transition);
}
.video-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}
.video-modal-close svg {
  width: 24px;
  height: 24px;
}
.video-modal-player {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}
.video-modal-player video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.video-modal-info {
  padding: 1.25rem;
  background: #1a1a1a;
  color: #fff;
}
.video-modal-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.video-modal-info p {
  font-size: 0.9rem;
  color: #aaa;
  line-height: 1.5;
}

/* ===== News Article Horizontal ===== */
.news-article-horizontal {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  transition: var(--transition);
}
.news-article-horizontal:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.news-article-img {
  flex-shrink: 0;
  width: 200px;
  height: 140px;
  border-radius: var(--radius);
  overflow: hidden;
}
.news-article-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-article-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-article-content .news-tag {
  align-self: flex-start;
  margin-bottom: 0.5rem;
}
.news-article-content h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
  line-height: 1.4;
}
.news-article-content p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex: 1;
}
.news-article-content .news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
@media (max-width: 768px) {
  .news-article-horizontal {
    flex-direction: column;
  }
  .news-article-img {
    width: 100%;
    height: 180px;
  }
}
/* ===== Strength List Layout ===== */
.strength-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.strength-list-item {
  display: flex;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.strength-list-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.strength-list-img {
  width: 280px;
  min-height: 180px;
  flex-shrink: 0;
  overflow: hidden;
}
.strength-list-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.strength-list-item:hover .strength-list-img img {
  transform: scale(1.05);
}
.strength-list-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}
.strength-list-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.strength-list-content p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}
@media (max-width: 768px) {
  .strength-list-item {
    flex-direction: column;
  }
  .strength-list-img {
    width: 100%;
    height: 200px;
  }
}

/* ===== News Detail Page ===== */
.news-detail-section {
  padding: 4rem 0;
}
.news-detail {
  max-width: 1200px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}
.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.news-detail-date {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-light);
  font-size: 0.9rem;
}
.news-detail-date svg {
  width: 18px;
  height: 18px;
}
.news-detail-category {
  background: var(--primary);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}
.news-detail-image {
  margin-bottom: 2rem;
  border-radius: var(--radius);
  overflow: hidden;
}
.news-detail-image img {
  width: 100%;
  height: auto;
  display: block;
}
.news-detail-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
}
.news-detail-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-dark);
  margin: 1.5rem 0 1rem;
}
.news-detail-content p {
  margin-bottom: 1rem;
}
.news-detail-content ul {
  margin: 1rem 0;
  padding-left: 1.5rem;
}
.news-detail-content li {
  margin-bottom: 0.5rem;
}
.news-detail-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  font-style: italic;
  color: var(--text-light);
}
.news-detail-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  font-weight: 500;
  transition: var(--transition);
}
.btn-back:hover {
  gap: 0.75rem;
}
.btn-back svg {
  width: 20px;
  height: 20px;
}
@media (max-width: 768px) {
  .news-detail {
    padding: 1.5rem;
  }
  .news-detail-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* Video Link Styles */
.video-link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: var(--transition);
}
.video-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.video-link:hover .video-play-btn {
  background: var(--accent);
}

/* ===== 新闻分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
  padding: 1.5rem 0;
  flex-wrap: wrap;
}
.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  padding: 0.625rem 1rem;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}
.pagination-btn:hover:not(.disabled) {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.pagination-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}
.pagination-info {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  color: var(--text-light);
}
.pagination-current {
  font-weight: 600;
  color: var(--primary);
}
.pagination-total {
  font-weight: 600;
  color: var(--text);
}
@media (max-width: 768px) {
  .pagination {
    gap: 0.375rem;
  }
  .pagination-btn {
    min-width: 60px;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
  }
  .pagination-info {
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
  }
}