:root {
  --dulicss-white: #ffffff;
  --dulicss-bg: #f8f9fb;
  --dulicss-bg-card: #ffffff;
  --dulicss-text: #1a1f2e;
  --dulicss-text-secondary: #5a6275;
  --dulicss-text-light: #8b93a5;
  --dulicss-blue: #1a5fdc;
  --dulicss-blue-dark: #1349b0;
  --dulicss-blue-light: #e8f0fe;
  --dulicss-blue-bg: #f0f5ff;
  --dulicss-gold: #c8932e;
  --dulicss-gold-light: #fdf6e8;
  --dulicss-border: #e5e8ef;
  --dulicss-border-light: #f0f2f6;
  --dulicss-shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --dulicss-shadow: 0 4px 20px rgba(0,0,0,0.06);
  --dulicss-shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --dulicss-radius: 8px;
  --dulicss-radius-sm: 6px;
  --dulicss-font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "WenQuanYi Micro Hei", sans-serif;
  --dulicss-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* [dulicss] 全局reset已注释，避免与现有CSS冲突。如需使用请取消注释 */
/* * { margin: 0; padding: 0; box-sizing: border-box; } */
/* [dulicss] 全局html样式已注释，避免与现有CSS冲突 */
/* html { scroll-behavior: smooth; font-size: 16px; } */

/* [dulicss] 全局body样式已注释，避免与现有CSS冲突。如需使用请取消注释 */
/* body {
  font-family: var(--dulicss-font);
  color: var(--dulicss-text);
  background: var(--dulicss-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
} */

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dulicss-bg); }
::-webkit-scrollbar-thumb { background: #c5cad5; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #a0a7b5; }

/* --- Typography --- */
.dulicss-section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--dulicss-blue);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 14px;
}
.dulicss-section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 16px;
  background: var(--dulicss-blue);
  border-radius: 2px;
}
.dulicss-section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--dulicss-text);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}
.dulicss-section-subtitle {
  font-size: 0.95rem;
  color: var(--dulicss-text-secondary);
  max-width: 560px;
  line-height: 1.8;
}
.dulicss-text-center { text-align: center; }
.dulicss-text-center .dulicss-section-subtitle { margin: 0 auto; }

/* --- Layout --- */
.dulicss-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.dulicss-section { padding: 5rem 0; }
.dulicss-section-alt { background: var(--dulicss-bg); }

/* --- Top Bar --- */
.dulicss-topbar {
  background: var(--dulicss-text);
  color: #b0b8c8;
  font-size: 0.8rem;
  padding: 0.5rem 0;
}
.dulicss-topbar .dulicss-container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.dulicss-topbar a { color: #c5ccd8; text-decoration: none; transition: color 0.2s; }
.dulicss-topbar a:hover { color: var(--dulicss-white); }

/* --- Header --- */
.dulicss-header {
  background: var(--dulicss-white);
  border-bottom: 1px solid var(--dulicss-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--dulicss-transition);
}
.dulicss-header.dulicss-scrolled { box-shadow: var(--dulicss-shadow-sm); }
.dulicss-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}
.dulicss-logo-area { display: flex; align-items: center; gap: 0.85rem; text-decoration: none; }
.dulicss-logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--dulicss-blue), var(--dulicss-blue-dark));
  border-radius: var(--dulicss-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.dulicss-logo-text { display: flex; flex-direction: column; }
.dulicss-logo-text .dulicss-cn { font-size: 1.05rem; font-weight: 700; color: var(--dulicss-text); letter-spacing: 0.03em; }
.dulicss-logo-text .dulicss-sub { font-size: 0.68rem; color: var(--dulicss-text-light); letter-spacing: 0.04em; }
.dulicss-nav { display: flex; gap: 0.25rem; align-items: center; }
.dulicss-nav a {
  color: var(--dulicss-text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: var(--dulicss-radius-sm);
  transition: var(--dulicss-transition);
  white-space: nowrap;
}
.dulicss-nav a:hover { color: var(--dulicss-blue); background: var(--dulicss-blue-bg); }
.dulicss-nav .dulicss-nav-tel {
  background: var(--dulicss-blue);
  color: var(--dulicss-white) !important;
  padding: 0.55rem 1.2rem;
  font-weight: 600;
  margin-left: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.dulicss-nav .dulicss-nav-tel:hover { background: var(--dulicss-blue-dark); }

/* --- Mobile menu toggle --- */
.dulicss-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}
.dulicss-menu-toggle span {
  width: 24px; height: 2px;
  background: var(--dulicss-text);
  border-radius: 2px;
  transition: var(--dulicss-transition);
}

/* --- Hero --- */
.dulicss-hero {
  background: linear-gradient(160deg, #f0f5ff 0%, #f8f9fb 30%, #ffffff 70%);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.dulicss-hero::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(26, 95, 220, 0.06) 0%, transparent 70%);
  top: -150px; right: -100px;
  border-radius: 50%;
}
.dulicss-hero::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(200, 147, 46, 0.05) 0%, transparent 70%);
  bottom: -80px; left: -50px;
  border-radius: 50%;
}
.dulicss-hero .dulicss-container { position: relative; z-index: 1; }
.dulicss-hero-content { max-width: 680px; }
.dulicss-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--dulicss-white);
  border: 1px solid var(--dulicss-border);
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 0.82rem;
  color: var(--dulicss-blue);
  font-weight: 500;
  margin-bottom: 1.5rem;
  box-shadow: var(--dulicss-shadow-sm);
}
.dulicss-hero-badge .dulicss-dot {
  width: 7px; height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: dulicss-pulse-dot 2s ease-in-out infinite;
}
@keyframes dulicss-pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}
.dulicss-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}
.dulicss-hero h1 .dulicss-hl { color: var(--dulicss-blue); position: relative; }
.dulicss-hero h1 .dulicss-hl::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 0; right: 0;
  height: 8px;
  background: rgba(26, 95, 220, 0.12);
  border-radius: 4px;
  z-index: -1;
}
.dulicss-hero-desc {
  font-size: 1.05rem;
  color: var(--dulicss-text-secondary);
  margin-bottom: 2rem;
  line-height: 1.85;
}
.dulicss-hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.dulicss-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--dulicss-radius-sm);
  cursor: pointer;
  transition: var(--dulicss-transition);
  text-decoration: none;
  border: none;
  letter-spacing: 0.02em;
}
.dulicss-btn-primary { background: var(--dulicss-blue); color: #fff; }
.dulicss-btn-primary:hover { background: var(--dulicss-blue-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(26, 95, 220, 0.3); }
.dulicss-btn-outline { background: var(--dulicss-white); border: 1.5px solid var(--dulicss-border); color: var(--dulicss-text); }
.dulicss-btn-outline:hover { border-color: var(--dulicss-blue); color: var(--dulicss-blue); }
.dulicss-hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--dulicss-border-light);
}
.dulicss-hero-stat .dulicss-num { font-size: 2rem; font-weight: 700; color: var(--dulicss-blue); line-height: 1; }
.dulicss-hero-stat .dulicss-num span { font-size: 0.85rem; font-weight: 400; }
.dulicss-hero-stat .dulicss-label { font-size: 0.82rem; color: var(--dulicss-text-light); margin-top: 0.35rem; }

/* --- About --- */
.dulicss-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.dulicss-about-text p { color: var(--dulicss-text-secondary); margin-bottom: 1rem; font-size: 0.95rem; line-height: 1.85; }
.dulicss-about-text .dulicss-hl { color: var(--dulicss-blue); font-weight: 600; }
.dulicss-about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.dulicss-about-hl {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  background: var(--dulicss-bg);
  border-radius: var(--dulicss-radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--dulicss-text);
  transition: var(--dulicss-transition);
}
.dulicss-about-hl:hover { background: var(--dulicss-blue-light); }
.dulicss-about-hl .dulicss-check { color: var(--dulicss-blue); font-weight: 700; }
.dulicss-about-image {
  background: linear-gradient(135deg, var(--dulicss-blue-bg), var(--dulicss-gold-light));
  border-radius: var(--dulicss-radius);
  padding: 3rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}
.dulicss-about-image .dulicss-big-num {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--dulicss-blue);
  line-height: 1;
}
.dulicss-about-image .dulicss-big-label {
  font-size: 1rem;
  color: var(--dulicss-text-secondary);
  font-weight: 500;
}
.dulicss-about-image .dulicss-cert-list {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}
.dulicss-about-image .dulicss-cert-tag {
  background: var(--dulicss-white);
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--dulicss-text);
  box-shadow: var(--dulicss-shadow-sm);
  border: 1px solid var(--dulicss-border);
}

/* --- Services --- */
.dulicss-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.dulicss-service-card {
  background: var(--dulicss-white);
  border: 1px solid var(--dulicss-border);
  border-radius: var(--dulicss-radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--dulicss-transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.dulicss-service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--dulicss-blue);
  transform: scaleX(0);
  transition: transform 0.3s;
}
.dulicss-service-card:hover { transform: translateY(-4px); box-shadow: var(--dulicss-shadow-lg); }
.dulicss-service-card:hover::before { transform: scaleX(1); }
.dulicss-service-card .dulicss-icon {
  width: 56px; height: 56px;
  background: var(--dulicss-blue-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.6rem;
}
.dulicss-service-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.dulicss-service-card p { font-size: 0.82rem; color: var(--dulicss-text-light); line-height: 1.6; }

/* --- Qualification --- */
.dulicss-qual-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.dulicss-qual-card {
  background: var(--dulicss-white);
  border: 1px solid var(--dulicss-border);
  border-radius: var(--dulicss-radius);
  padding: 2rem;
  transition: var(--dulicss-transition);
  text-align: center;
}
.dulicss-qual-card:hover { box-shadow: var(--dulicss-shadow); }
.dulicss-qual-card .dulicss-cert-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.dulicss-qual-card .dulicss-cert-code {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dulicss-blue);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}
.dulicss-qual-card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.5rem; }
.dulicss-qual-card p { font-size: 0.82rem; color: var(--dulicss-text-secondary); line-height: 1.6; }
.dulicss-qual-card .dulicss-scope {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.25rem 0.75rem;
  background: var(--dulicss-blue-bg);
  border-radius: 1rem;
  font-size: 0.75rem;
  color: var(--dulicss-blue);
  font-weight: 500;
}

/* --- Process --- */
.dulicss-process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 2.5rem;
  position: relative;
}
.dulicss-process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: var(--dulicss-border);
  z-index: 0;
}
.dulicss-process-step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 1rem;
}
.dulicss-process-step .dulicss-step-num {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--dulicss-white);
  border: 2px solid var(--dulicss-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  transition: var(--dulicss-transition);
}
.dulicss-process-step:hover .dulicss-step-num { border-color: var(--dulicss-blue); background: var(--dulicss-blue-bg); }
.dulicss-process-step .dulicss-step-num .dulicss-num { font-size: 1.5rem; font-weight: 700; color: var(--dulicss-blue); }
.dulicss-process-step .dulicss-step-num .dulicss-icon { font-size: 1.1rem; margin-top: 0.1rem; }
.dulicss-process-step h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.35rem; }
.dulicss-process-step p { font-size: 0.82rem; color: var(--dulicss-text-light); }

/* --- FAQ --- */
.dulicss-faq-list { max-width: 800px; margin: 2.5rem auto 0; }
.dulicss-faq-item {
  background: var(--dulicss-white);
  border: 1px solid var(--dulicss-border);
  border-radius: var(--dulicss-radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: var(--dulicss-transition);
}
.dulicss-faq-item:hover { border-color: #c5cddb; }
.dulicss-faq-q {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  gap: 1rem;
}
.dulicss-faq-q .dulicss-arrow {
  font-size: 0.7rem;
  color: var(--dulicss-text-light);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.dulicss-faq-item.dulicss-open .dulicss-faq-q .dulicss-arrow { transform: rotate(180deg); color: var(--dulicss-blue); }
.dulicss-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.5rem;
  font-size: 0.88rem;
  color: var(--dulicss-text-secondary);
  line-height: 1.8;
}
.dulicss-faq-item.dulicss-open .dulicss-faq-a { max-height: 300px; padding: 0 1.5rem 1.25rem; }

/* --- News --- */
.dulicss-news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.dulicss-news-card {
  background: var(--dulicss-white);
  border: 1px solid var(--dulicss-border);
  border-radius: var(--dulicss-radius);
  padding: 1.5rem;
  transition: var(--dulicss-transition);
}
.dulicss-news-card:hover { box-shadow: var(--dulicss-shadow); }
.dulicss-news-card .dulicss-date {
  font-size: 0.75rem;
  color: var(--dulicss-text-light);
  margin-bottom: 0.5rem;
}
.dulicss-news-card h4 {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dulicss-news-card h4 a { color: var(--dulicss-text); text-decoration: none; }
.dulicss-news-card h4 a:hover { color: var(--dulicss-blue); }

/* --- CTA --- */
.dulicss-cta {
  background: linear-gradient(135deg, var(--dulicss-blue), var(--dulicss-blue-dark));
  color: var(--dulicss-white);
  text-align: center;
  padding: 4rem 0;
}
.dulicss-cta h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 1rem; }
.dulicss-cta p { font-size: 1rem; opacity: 0.85; max-width: 500px; margin: 0 auto 2rem; }
.dulicss-cta .dulicss-btn-white {
  background: var(--dulicss-white);
  color: var(--dulicss-blue);
  font-size: 1rem;
  padding: 0.9rem 2.5rem;
}
.dulicss-cta .dulicss-btn-white:hover { background: #f0f5ff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }
.dulicss-cta-contact {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* --- Footer --- */
.dulicss-footer {
  background: var(--dulicss-text);
  color: #b0b8c8;
  padding: 3rem 0 0;
}
.dulicss-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.dulicss-footer-col h4 {
  color: var(--dulicss-white);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: 0.04em;
}
.dulicss-footer-col p, .dulicss-footer-col a {
  font-size: 0.82rem;
  line-height: 2;
  text-decoration: none;
  display: block;
  color: #8890a4;
}
.dulicss-footer-col a:hover { color: var(--dulicss-white); }
.dulicss-footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.78rem;
  color: #6b7385;
}
.dulicss-footer-bottom a { color: #6b7385; text-decoration: none; }
.dulicss-footer-bottom a:hover { color: #b0b8c8; }

/* --- Float buttons --- */
.dulicss-float-tel {
  display: none;
  position: fixed;
  z-index: 999;
  background: var(--dulicss-blue);
  color: #fff;
  border-radius: 50px;
  padding: 0.7rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(26, 95, 220, 0.4);
  transition: var(--dulicss-transition);
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}
.dulicss-float-tel:hover { background: var(--dulicss-blue-dark); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(26, 95, 220, 0.5); }
.dulicss-float-tel-top { top: 100px; right: 24px; }
.dulicss-float-tel-bottom { bottom: 24px; right: 24px; }