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

:root {
  --blue-dark:   #1a5fa8;
  --blue:        #0073e6;
  --blue-light:  #3a9cf8;
  --blue-pale:   #e8f4ff;
  --accent:      #ff6b35;
  --text-dark:   #1a1a2e;
  --text-mid:    #444e60;
  --text-light:  #8899a8;
  --bg:          #ffffff;
  --bg-soft:     #f5f8fc;
  --bg-dark:     #0d1b2e;
  --border:      #dde8f5;
  --shadow-sm:   0 2px 8px rgba(0,115,230,.08);
  --shadow-md:   0 8px 32px rgba(0,115,230,.12);
  --shadow-lg:   0 20px 60px rgba(0,115,230,.18);
  --radius:      12px;
  --radius-lg:   20px;
  --transition:  0.3s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-dark);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== TOP BAR ===== */
.top-bar {
  background: var(--blue-dark);
  color: rgba(255,255,255,.85);
  font-size: .82rem;
  padding: 6px 0;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.top-bar-right {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: #fff;
  font-size: .9rem;
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon { flex-shrink: 0; }
.logo-img { height: 48px; width: auto; object-fit: contain; display: block; }
.logo-img-sm { height: 40px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-main { font-size: 1.1rem; font-weight: 700; color: var(--blue-dark); }
.logo-sub { font-size: .7rem; color: var(--text-light); }

.nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-mid);
  border-radius: 8px;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--blue);
  background: var(--blue-pale);
}
.nav-cta {
  background: var(--blue) !important;
  color: #fff !important;
  padding: 8px 18px !important;
}
.nav-cta:hover { background: var(--blue-dark) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #0d2a52 50%, #1a5fa8 100%);
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-bg::before {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,115,230,.3) 0%, transparent 70%);
  top: -200px;
  right: -100px;
}
.hero-bg::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(58,156,248,.15) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 24px;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,115,230,.3);
  border: 1px solid rgba(0,115,230,.5);
  color: var(--blue-light);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .12em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}
.hero-highlight {
  color: var(--blue-light);
  display: block;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,.75);
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat-label {
  font-size: .78rem;
  color: rgba(255,255,255,.6);
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.2);
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.4);
  font-size: .75rem;
  letter-spacing: .1em;
  z-index: 2;
}
.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  animation: scrollBounce 1.5s infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(4px); }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: .92rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,115,230,.35);
}
.btn-primary:hover {
  background: var(--blue-dark);
  box-shadow: 0 6px 24px rgba(0,115,230,.45);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.8);
}
.btn-full { width: 100%; }

/* ===== SECTION COMMONS ===== */
.section { padding: 80px 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  color: var(--blue);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  margin-bottom: 10px;
  padding: 4px 12px;
  background: var(--blue-pale);
  border-radius: 100px;
}
.section-header.light .section-tag { background: rgba(255,255,255,.15); color: rgba(255,255,255,.9); }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.section-title.left { text-align: left; }
.section-header.light .section-title { color: #fff; }
.section-desc { color: var(--text-light); font-size: .95rem; }
.section-header.light .section-desc { color: rgba(255,255,255,.7); }

/* ===== SERVICES ===== */
.services-section { background: var(--bg-soft); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border);
  transition: var(--transition);
}
.service-card:hover {
  border-color: var(--blue-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-card:hover::before { background: linear-gradient(90deg, var(--blue), var(--blue-light)); }
.service-card.featured {
  border-color: var(--blue-light);
  background: linear-gradient(160deg, #fff 60%, var(--blue-pale));
}
.service-card.featured::before { background: linear-gradient(90deg, var(--blue), var(--blue-light)); }

.service-icon { margin-bottom: 20px; }
.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
}
.service-card p {
  color: var(--text-mid);
  font-size: .9rem;
  line-height: 1.7;
  margin-bottom: 18px;
}
.service-list { margin-bottom: 24px; }
.service-list li {
  font-size: .85rem;
  color: var(--text-mid);
  padding: 5px 0;
  padding-left: 16px;
  position: relative;
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue);
}
.service-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue);
  font-weight: 600;
  font-size: .88rem;
  transition: var(--transition);
}
.service-btn:hover { gap: 10px; }
.service-btn::after { content: '→'; }

/* ===== SOLUTIONS ===== */
.solutions-section {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #0d2a52 100%);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

.solution-item {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  color: #fff;
  transition: all var(--transition);
  cursor: default;
}
.solution-item:hover {
  background: rgba(0,115,230,.25);
  border-color: rgba(0,115,230,.5);
  transform: translateY(-4px);
}
.solution-icon { font-size: 2.2rem; margin-bottom: 12px; }
.solution-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.solution-item p { font-size: .8rem; color: rgba(255,255,255,.6); line-height: 1.5; }

/* ===== ADVANTAGES ===== */
.advantages-section { background: var(--bg); }

.advantages-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: center;
}

.adv-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 360px;
}
.adv-ring {
  position: absolute;
  border-radius: 50%;
  border-style: solid;
  border-color: var(--blue);
  animation: spinRing 8s linear infinite;
}
.ring-1 { width: 280px; height: 280px; border-width: 2px; opacity: .15; }
.ring-2 { width: 220px; height: 220px; border-width: 2px; opacity: .25; animation-duration: 5s; animation-direction: reverse; }
.ring-3 { width: 160px; height: 160px; border-width: 3px; opacity: .4; animation-duration: 3s; }
@keyframes spinRing {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.adv-center {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--blue);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  justify-content: center;
  box-shadow: 0 0 40px rgba(0,115,230,.4);
}
.adv-years {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.adv-years sup { font-size: 1rem; }
.adv-label { font-size: .72rem; color: rgba(255,255,255,.8); margin-top: 2px; }

.advantages-list { display: flex; flex-direction: column; gap: 28px; }
.adv-item { display: flex; gap: 20px; align-items: flex-start; }
.adv-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--blue-pale);
  color: var(--blue);
  font-size: .8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: .05em;
}
.adv-content h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--text-dark); }
.adv-content p { font-size: .88rem; color: var(--text-mid); line-height: 1.65; }

/* ===== CASES ===== */
.cases-section { background: var(--bg-soft); }

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

.case-img {
  height: 200px;
  position: relative;
  overflow: hidden;
}
.case-img-1 {
  background: linear-gradient(135deg, #1a3a5c 0%, #2563a8 50%, #3a9cf8 100%);
}
.case-img-1::after {
  content: '🏢';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: .3;
}
.case-img-2 {
  background: linear-gradient(135deg, #0d2a52 0%, #1a5fa8 50%, #0073e6 100%);
}
.case-img-2::after {
  content: '🏬';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: .3;
}
.case-img-3 {
  background: linear-gradient(135deg, #003366 0%, #0d4a8a 50%, #1a6bb5 100%);
}
.case-img-3::after {
  content: '🏥';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: .3;
}
.case-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px;
  background: linear-gradient(transparent, rgba(0,0,0,.5));
}
.case-tag {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-size: .75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
}

.case-body { padding: 20px 24px 24px; }
.case-body h4 { font-size: .95rem; font-weight: 700; margin-bottom: 8px; line-height: 1.5; }
.case-meta {
  display: flex;
  gap: 16px;
  font-size: .78rem;
  color: var(--text-light);
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.case-body p { font-size: .85rem; color: var(--text-mid); line-height: 1.7; }

/* ===== ABOUT ===== */
.about-section { background: var(--bg); }
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.about-img-box {
  position: relative;
  height: 380px;
}
.about-img-bg {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 50%, var(--blue-light) 100%);
  overflow: hidden;
}
.about-img-bg::before {
  content: '❄️';
  position: absolute;
  font-size: 8rem;
  opacity: .15;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.about-img-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.about-badge-box {
  position: absolute;
  bottom: -20px;
  right: -20px;
  display: flex;
  gap: 12px;
}
.about-badge-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.badge-num { display: block; font-size: 1.6rem; font-weight: 800; color: var(--blue); line-height: 1; }
.badge-label { font-size: .72rem; color: var(--text-light); margin-top: 4px; }

.about-content { padding-bottom: 20px; }
.about-content .section-tag { margin-bottom: 12px; display: inline-block; }
.about-text {
  color: var(--text-mid);
  font-size: .9rem;
  line-height: 1.8;
  margin-bottom: 14px;
}
.about-certs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}
.cert-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .85rem;
  color: var(--text-mid);
}
.cert-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ===== BRANDS ===== */
.brands-section {
  background: var(--bg-soft);
  padding: 36px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.brands-title {
  text-align: center;
  font-size: .8rem;
  color: var(--text-light);
  letter-spacing: .15em;
  font-weight: 600;
  margin-bottom: 20px;
}
.brands-track { overflow: hidden; }
.brands-list {
  display: flex;
  gap: 48px;
  animation: scrollBrands 25s linear infinite;
  width: max-content;
}
.brand-item {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: .08em;
  white-space: nowrap;
  transition: var(--transition);
}
.brand-item:hover { color: var(--blue); }
@keyframes scrollBrands {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== CONTACT ===== */
.contact-section { background: var(--bg); }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.contact-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); }
.contact-card-icon { font-size: 1.8rem; margin-bottom: 8px; }
.contact-card h4 { font-size: .85rem; font-weight: 700; color: var(--text-light); margin-bottom: 6px; letter-spacing: .05em; }
.contact-main { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); }
.contact-sub { font-size: .8rem; color: var(--text-light); margin-top: 4px; }

.contact-form-wrap {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.contact-form h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-dark);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-mid);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: .9rem;
  color: var(--text-dark);
  background: #fff;
  transition: var(--transition);
  font-family: inherit;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0,115,230,.1);
}
.form-group textarea { resize: vertical; }

/* ===== FOOTER ===== */
.footer { background: var(--bg-dark); }
.footer-top { padding: 60px 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-desc {
  color: rgba(255,255,255,.5);
  font-size: .85rem;
  line-height: 1.7;
  margin: 16px 0;
}
.footer-contact {
  color: rgba(255,255,255,.7);
  font-size: .9rem;
  font-weight: 600;
}
.footer-links h5 {
  color: #fff;
  font-size: .88rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .05em;
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: rgba(255,255,255,.5);
  font-size: .85rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--blue-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 16px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .78rem;
  color: rgba(255,255,255,.3);
}

/* ===== FLOAT CONTACT ===== */
.float-contact {
  position: fixed;
  bottom: 32px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 900;
}
.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
  transition: all var(--transition);
}
.float-phone { background: var(--blue); }
.float-msg { background: #0ea5e9; }
.float-top { background: rgba(0,0,0,.4); backdrop-filter: blur(8px); }
.float-btn:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(0,0,0,.25); }

/* ===== ABOUT SLOGAN ===== */
.about-slogan-box {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  text-align: center;
  margin-bottom: 8px;
}
.slogan-main {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: .04em;
}
.slogan-sub {
  font-size: .85rem;
  color: rgba(255,255,255,.65);
  margin-top: 8px;
}

/* ===== CERT HIGHLIGHT ===== */
.cert-card-highlight {
  border-color: #f59e0b !important;
  background: linear-gradient(160deg, #fff 60%, #fffbeb);
  position: relative;
}
.cert-card-highlight::before {
  content: '国家一级';
  position: absolute;
  top: 12px; right: 12px;
  background: #f59e0b;
  color: #fff;
  font-size: .68rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 100px;
  letter-spacing: .05em;
}

/* ===== PAGE BANNER (内页顶部横幅) ===== */
.page-banner {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #0d2a52 60%, #1a5fa8 100%);
  color: #fff;
  padding: 56px 0 48px;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,115,230,.25) 0%, transparent 70%);
  top: -150px; right: -80px;
}
.page-banner-content { position: relative; z-index: 2; }
.page-banner-breadcrumb { font-size: .8rem; color: rgba(255,255,255,.5); margin-bottom: 10px; }
.page-banner-breadcrumb a { color: rgba(255,255,255,.6); transition: var(--transition); }
.page-banner-breadcrumb a:hover { color: #fff; }
.page-banner h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 700; margin-bottom: 10px; }
.page-banner p { font-size: .95rem; color: rgba(255,255,255,.7); max-width: 560px; }

/* ===== SERVICE NAV BAR ===== */
.service-nav-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 70px;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
.service-nav-bar .container {
  display: flex;
  gap: 0;
}
.service-nav-item {
  display: block;
  padding: 14px 24px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-mid);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.service-nav-item:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
  background: var(--blue-pale);
}

/* ===== SERVICE DETAIL ===== */
.service-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.service-detail-layout.reverse { direction: rtl; }
.service-detail-layout.reverse > * { direction: ltr; }

.service-visual-box {
  border-radius: var(--radius-lg);
  height: 360px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-visual-1 { background: linear-gradient(135deg, #0d2a52 0%, #1a5fa8 50%, #3a9cf8 100%); }
.service-visual-2 { background: linear-gradient(135deg, #003366 0%, #0073e6 50%, #5bb3ff 100%); }
.service-visual-3 { background: linear-gradient(135deg, #0a192f 0%, #1a4a8a 50%, #2563a8 100%); }

.service-visual-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}
.service-scope-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
}
.scope-item {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 10px;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: .82rem;
  text-align: center;
  transition: var(--transition);
}
.scope-item:hover { background: rgba(255,255,255,.2); }
.scope-icon { font-size: 1.4rem; }

.clean-benefits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: 100%;
}
.clean-benefit-item {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 12px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-align: center;
}
.cb-num { font-size: 2rem; display: block; line-height: 1; }
.clean-benefit-item span:last-child { font-size: .82rem; font-weight: 600; color: rgba(255,255,255,.9); }

.detail-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}
.detail-feature-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.df-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.detail-feature-item h5 { font-size: .9rem; font-weight: 700; margin-bottom: 4px; }
.detail-feature-item p { font-size: .8rem; color: var(--text-mid); line-height: 1.5; }

/* ===== PROCESS STEPS ===== */
.process-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 28px; text-align: center; }
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 8px;
}
.process-step {
  flex: 1;
  min-width: 140px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.process-step:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); }
.ps-num { display: none; }
.ps-icon { font-size: 1.8rem; margin: 12px 0 8px; }
.process-step h4 { font-size: .88rem; font-weight: 700; margin-bottom: 6px; }
.process-step p { font-size: .75rem; color: var(--text-mid); line-height: 1.5; }
.process-arrow { flex-shrink: 0; color: var(--text-light); font-size: 1.2rem; padding: 40px 4px 0; align-self: flex-start; }

.section-divider { height: 1px; background: var(--border); }

/* ===== STATS BAR ===== */
.stats-bar { background: var(--blue); padding: 36px 0; }
.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
}
.stats-bar-item {
  text-align: center;
  color: #fff;
  padding: 8px 0;
  border-right: 1px solid rgba(255,255,255,.2);
}
.stats-bar-item:last-child { border-right: none; }
.stats-bar-num { display: block; font-size: 2rem; font-weight: 800; line-height: 1; }
.stats-bar-label { font-size: .78rem; color: rgba(255,255,255,.75); margin-top: 6px; display: block; }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue) 100%);
  padding: 60px 0;
  color: #fff;
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }
.cta-banner p { color: rgba(255,255,255,.75); font-size: .95rem; }
.cta-banner-actions { display: flex; gap: 14px; flex-shrink: 0; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--blue); font-weight: 700; }
.btn-white:hover { background: var(--blue-pale); }
.btn-outline-white { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.6); }
.btn-outline-white:hover { background: rgba(255,255,255,.1); border-color: #fff; }

/* ===== INDUSTRY GRID ===== */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.industry-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.industry-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.industry-card-header {
  padding: 28px 28px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.ind-1 { background: linear-gradient(135deg, #e8f4ff 0%, #d0e8ff 100%); }
.ind-2 { background: linear-gradient(135deg, #fff3e8 0%, #ffe0c0 100%); }
.ind-3 { background: linear-gradient(135deg, #e8f8e8 0%, #c8ecc8 100%); }
.ind-4 { background: linear-gradient(135deg, #f0e8ff 0%, #ddc8ff 100%); }
.ind-5 { background: linear-gradient(135deg, #fff8e8 0%, #ffe8b0 100%); }
.ind-6 { background: linear-gradient(135deg, #e8f8ff 0%, #c0e8f8 100%); }
.industry-emoji { font-size: 2.4rem; }
.industry-card-header h3 { font-size: 1.15rem; font-weight: 700; }
.industry-card-body { padding: 0 28px 24px; }
.industry-card-body p { font-size: .88rem; color: var(--text-mid); line-height: 1.7; margin-bottom: 14px; }
.industry-list { margin-bottom: 16px; }
.industry-list li { font-size: .83rem; color: var(--text-mid); padding: 4px 0 4px 14px; position: relative; }
.industry-list li::before { content: ''; position: absolute; left: 0; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); }
.industry-cta { font-size: .85rem; font-weight: 700; color: var(--blue); transition: var(--transition); }
.industry-cta:hover { letter-spacing: .05em; }

/* ===== ADVANTAGES BIG GRID ===== */
.adv-big-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.adv-big-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: all var(--transition);
}
.adv-big-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.adv-big-icon { font-size: 2.4rem; margin-bottom: 8px; }
.adv-big-num {
  position: absolute;
  top: 20px; right: 20px;
  font-size: .72rem;
  font-weight: 800;
  color: var(--blue);
  background: var(--blue-pale);
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: .05em;
}
.adv-big-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.adv-big-card p { font-size: .88rem; color: var(--text-mid); line-height: 1.7; margin-bottom: 14px; }
.adv-detail-list { }
.adv-detail-list li { font-size: .82rem; color: var(--text-mid); padding: 4px 0 4px 14px; position: relative; }
.adv-detail-list li::before { content: ''; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); }

/* ===== CERT GRID ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.cert-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.cert-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); }
.cert-card-icon { font-size: 2.2rem; margin-bottom: 12px; }
.cert-card h4 { font-size: .95rem; font-weight: 700; margin-bottom: 8px; }
.cert-card p { font-size: .83rem; color: var(--text-mid); line-height: 1.6; }

/* ===== CASES FULL GRID ===== */
.cases-filter-bar {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  padding: 0;
}
.cases-filter-bar .container { display: flex; gap: 0; }
.filter-btn {
  padding: 14px 24px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-mid);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-family: inherit;
}
.filter-btn:hover, .filter-btn.active { color: var(--blue); border-bottom-color: var(--blue); }
.cases-full-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}
.case-full-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.case-full-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.case-full-card.hidden { display: none; }

.case-img-4 { height: 200px; background: linear-gradient(135deg, #1a2a4a 0%, #2a5298 50%, #4a7fd4 100%); position: relative; overflow: hidden; }
.case-img-4::after { content: '🏨'; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 4rem; opacity: .3; }
.case-img-5 { height: 200px; background: linear-gradient(135deg, #0f3460 0%, #16537e 50%, #2980b9 100%); position: relative; overflow: hidden; }
.case-img-5::after { content: '🏫'; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 4rem; opacity: .3; }
.case-img-6 { height: 200px; background: linear-gradient(135deg, #1a2744 0%, #1f4e79 50%, #2e86c1 100%); position: relative; overflow: hidden; }
.case-img-6::after { content: '🏭'; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 4rem; opacity: .3; }

.case-tags-row { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.case-mini-tag {
  font-size: .73rem;
  background: var(--blue-pale);
  color: var(--blue);
  padding: 3px 8px;
  border-radius: 100px;
  font-weight: 600;
}

/* ===== TIMELINE ===== */
.timeline { position: relative; max-width: 760px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 120px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  display: grid;
  grid-template-columns: 120px 32px 1fr;
  gap: 0 20px;
  margin-bottom: 40px;
  align-items: flex-start;
}
.timeline-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--blue);
  margin-top: 4px;
  flex-shrink: 0;
}
.timeline-year {
  text-align: right;
  font-size: .82rem;
  font-weight: 700;
  color: var(--blue);
  padding-top: 2px;
}
.timeline-content { padding-bottom: 8px; }
.timeline-content h4 { font-size: .95rem; font-weight: 700; margin-bottom: 6px; }
.timeline-content p { font-size: .85rem; color: var(--text-mid); line-height: 1.7; }

/* ===== VALUES GRID ===== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.value-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.value-card:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); }
.value-icon { font-size: 2.2rem; margin-bottom: 12px; }
.value-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: .85rem; color: var(--text-mid); line-height: 1.6; }

/* ===== LOCATIONS GRID ===== */
.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}
.location-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  transition: all var(--transition);
}
.location-card:hover { border-color: var(--blue); box-shadow: var(--shadow-md); }
.location-icon { font-size: 2.8rem; margin-bottom: 12px; }
.location-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.location-city { font-size: .85rem; color: var(--blue); font-weight: 600; margin-bottom: 16px; }
.location-list { text-align: left; margin-bottom: 16px; }
.location-list li { font-size: .85rem; color: var(--text-mid); padding: 5px 0 5px 14px; position: relative; }
.location-list li::before { content: ''; position: absolute; left: 0; top: 12px; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); }
.location-phone { font-size: .9rem; font-weight: 700; color: var(--blue); }

/* ===== CONTACT PAGE ===== */
.contact-cards-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.contact-card-top {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}
.contact-card-top:hover { border-color: var(--blue-light); box-shadow: var(--shadow-sm); }
.cct-icon { font-size: 2rem; margin-bottom: 8px; }
.contact-card-top h4 { font-size: .8rem; font-weight: 700; color: var(--text-light); margin-bottom: 8px; letter-spacing: .05em; }
.cct-main { font-size: 1rem; font-weight: 700; color: var(--text-dark); }
.cct-main a { color: var(--blue); }
.cct-sub { font-size: .78rem; color: var(--text-light); margin-top: 4px; }

.contact-main-layout { display: flex; gap: 32px; align-items: flex-start; flex-wrap: wrap; }

.contact-side-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.contact-side-card h4 { font-size: .95rem; font-weight: 700; margin-bottom: 16px; }
.promise-list { display: flex; flex-direction: column; gap: 16px; }
.promise-item { display: flex; gap: 12px; align-items: flex-start; }
.promise-icon { font-size: 1rem; flex-shrink: 0; margin-top: 2px; }
.promise-item strong { display: block; font-size: .88rem; margin-bottom: 2px; }
.promise-item p { font-size: .8rem; color: var(--text-mid); line-height: 1.5; }

.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid var(--border); padding: 12px 0; }
.faq-item:last-child { border-bottom: none; }
.faq-q { font-size: .88rem; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.faq-a { font-size: .82rem; color: var(--text-mid); line-height: 1.6; }

/* ===== HOME STATS BAR ===== */
.stats-bar.home { background: var(--blue); }

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .advantages-layout { grid-template-columns: 1fr; }
  .adv-visual { height: 240px; margin-bottom: 20px; }
  .about-layout { grid-template-columns: 1fr; }
  .about-img-box { height: 260px; margin-bottom: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .top-bar .container span:first-child { display: none; }
  .nav { display: none; position: fixed; inset: 0; background: rgba(255,255,255,.98); backdrop-filter: blur(12px); z-index: 999; flex-direction: column; align-items: center; justify-content: center; }
  .nav.open { display: flex; }
  .nav ul { flex-direction: column; gap: 8px; text-align: center; }
  .nav-link { font-size: 1.1rem; padding: 12px 32px; }
  .hamburger { display: flex; z-index: 1001; position: relative; }
  .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
  .hero { min-height: 560px; }
  .hero-content { padding: 60px 24px 80px; }
  .hero-desc br { display: none; }
  .section { padding: 56px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .about-badge-box { display: none; }
  .hero-scroll { display: none; }
  .contact-form-wrap { padding: 24px; }
}

@media (max-width: 480px) {
  .logo-sub { display: none; }
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 1.6rem; }
  .solutions-grid { grid-template-columns: 1fr 1fr; }
  .about-certs { grid-template-columns: 1fr; }
  .float-contact { bottom: 20px; right: 16px; }
}