/* ===== 全局基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0d2137;
  --navy-mid: #163352;
  --navy-light: #1e4a75;
  --blue: #1565c0;
  --blue-light: #1976d2;
  /* 主强调色：浅灰系 替代金色 */
  --gold: #6b7c99;
  --gold-light: #8a9ab8;
  --gold-pale: #eef1f6;
  /* 新增：纯浅灰用于文字强调 */
  --accent: #4a6fa5;
  --accent-light: #6b8fc7;
  --accent-pale: #e8edf5;
  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --bg-white: #ffffff;
  --bg-light: #f5f7fa;
  --bg-section: #eef1f6;
  --border: #dde3ed;
  --border-light: #eaeff7;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.14);
  --transition: all 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(13, 33, 55, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(13, 33, 55, 0.99);
  box-shadow: var(--shadow-md);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-right: auto;
}
.logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 2px 6px;
}
.logo-text { display: flex; flex-direction: column; }
.logo-name {
  font-size: 16px; font-weight: 600;
  color: #fff; line-height: 1.2;
  letter-spacing: 0.5px;
}
.logo-sub {
  font-size: 11px; color: rgba(255,255,255,0.5);
  letter-spacing: 0.5px; line-height: 1;
}
.nav-links {
  display: flex; align-items: center;
  gap: 4px; margin: 0 20px;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 14px; padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover {
  color: #b0c8e8;
  background: rgba(255,255,255,0.06);
}
.nav-contact { flex-shrink: 0; }
.nav-phone {
  color: #b0c8e8;
  font-size: 14px; font-weight: 600;
  white-space: nowrap;
}
.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none;
  cursor: pointer; padding: 8px; margin-left: 12px;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: rgba(255,255,255,0.8);
  border-radius: 2px; transition: var(--transition);
}
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 12px 0;
}
.mobile-menu a {
  color: rgba(255,255,255,0.8);
  padding: 12px 24px;
  font-size: 15px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}
.mobile-menu a:hover { color: #b0c8e8; background: rgba(255,255,255,0.04); }
.mobile-phone {
  color: #b0c8e8 !important;
  font-weight: 600; font-size: 16px !important;
  padding-top: 16px !important;
}
.mobile-menu.open { display: flex; }

/* ===== 公共 Section 样式 ===== */
.section-pad { padding: 88px 0; }
.bg-light { background: var(--bg-light); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 12px; font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 4px;
  margin-bottom: 16px;
}
.section-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
  margin-bottom: 14px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 15px; font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74,111,165,0.40);
}
.btn-ghost {
  display: inline-block;
  background: transparent;
  color: #fff;
  font-size: 15px; font-weight: 500;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(255,255,255,0.35);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.08);
}
.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--navy);
  font-size: 14px; font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--navy);
  transition: var(--transition);
}
.btn-outline:hover {
  background: var(--navy);
  color: #fff;
}
.btn-primary-sm {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  font-size: 14px; font-weight: 600;
  padding: 11px 24px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary-sm:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
}

/* ===== HERO 区域 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
  padding-top: 68px;
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #081525 0%, #0d2137 35%, #122b4a 65%, #163352 100%);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(21, 101, 192, 0.18) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(107, 124, 153, 0.10) 0%, transparent 50%);
}
/* 装饰线条 */
.hero-bg::before {
  content: '';
  position: absolute;
  top: 15%; right: 8%;
  width: 420px; height: 420px;
  border: 1px solid rgba(107,124,153,0.15);
  border-radius: 50%;
}
.hero-bg::after {
  content: '';
  position: absolute;
  top: 22%; right: 14%;
  width: 280px; height: 280px;
  border: 1px solid rgba(107,124,153,0.10);
  border-radius: 50%;
}
.hero-inner {
  position: relative; z-index: 1;
  padding: 80px 24px 100px;
  max-width: 780px;
}
.hero-badge {
  display: inline-flex; align-items: center;
  gap: 8px;
  background: rgba(107,124,153,0.18);
  border: 1px solid rgba(138,154,184,0.40);
  color: #b8c8e0;
  font-size: 13px; font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #8ab4e0;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(36px, 6vw, 62px);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 2px;
}
.hero-subtitle {
  font-size: clamp(14px, 1.8vw, 17px);
  color: rgba(255,255,255,0.65);
  line-height: 1.9;
  margin-bottom: 32px;
}
.hero-brands {
  display: flex; flex-wrap: wrap;
  gap: 10px; margin-bottom: 36px;
}
.brand-tag {
  display: flex; align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.8);
  font-size: 13px; padding: 7px 14px;
  border-radius: 20px;
  transition: var(--transition);
}
.brand-tag:hover { border-color: #8ab4e0; color: #b0c8e8; }
.brand-dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.brand-haier { background: #1976d2; }
.brand-casarte { background: #b8922a; }
.brand-mitsubishi { background: #e53935; }
.brand-aireng { background: #2e7d32; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: flex; align-items: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat-item { text-align: center; padding: 0 32px; }
.stat-item:first-child { padding-left: 0; }
.stat-num {
  font-family: 'Noto Serif SC', serif;
  font-size: 36px; font-weight: 700;
  color: #c8d8f0; line-height: 1;
  margin-bottom: 6px;
}
.stat-num span { font-size: 20px; }
.stat-label { font-size: 13px; color: rgba(255,255,255,0.5); white-space: nowrap; }
.stat-divider {
  width: 1px; height: 48px;
  background: rgba(255,255,255,0.12);
  flex-shrink: 0;
}
.hero-scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: rgba(255,255,255,0.35);
  font-size: 12px;
  letter-spacing: 1px;
}
.scroll-arrow {
  margin: 6px auto 0;
  width: 16px; height: 16px;
  border-right: 1.5px solid rgba(255,255,255,0.3);
  border-bottom: 1.5px solid rgba(255,255,255,0.3);
  transform: rotate(45deg);
  animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(5px); }
}

/* ===== 品牌带 ===== */
.brand-strip {
  background: var(--navy);
  padding: 28px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.brand-strip-inner {
  display: flex; align-items: center;
  gap: 32px; flex-wrap: wrap;
}
.strip-label {
  font-size: 12px; color: rgba(255,255,255,0.35);
  letter-spacing: 1.5px; white-space: nowrap;
  flex-shrink: 0;
}
.brand-logos {
  display: flex; align-items: center;
  gap: 0; flex: 1; flex-wrap: wrap;
}
.brand-logo-item {
  display: flex; align-items: center; gap: 10px;
  flex: 1; min-width: 140px;
  padding: 0 24px;
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  transition: var(--transition);
}
.brand-logo-item:hover { color: #b0c8e8; }
.brand-logo-icon {
  font-size: 13px; font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap; flex-shrink: 0;
}
.haier-icon { background: rgba(25,118,210,0.2); color: #64b5f6; border: 1px solid rgba(25,118,210,0.3); }
.casarte-icon { background: rgba(107,124,153,0.2); color: #b0bedd; border: 1px solid rgba(107,124,153,0.3); }
.mitsu-icon { background: rgba(229,57,53,0.15); color: #ef9a9a; border: 1px solid rgba(229,57,53,0.2); }
.aireng-icon { background: rgba(46,125,50,0.2); color: #81c784; border: 1px solid rgba(46,125,50,0.3); }
.brand-logo-sep { width: 1px; height: 32px; background: rgba(255,255,255,0.1); flex-shrink: 0; }

/* ===== 关于我们 ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: start;
}
.about-image-area { position: relative; }
.about-img-placeholder {
  width: 100%; aspect-ratio: 10/7;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
  overflow: hidden;
}
.img-placeholder-inner {
  height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 8px;
}
.img-icon { font-size: 40px; line-height: 1; }
.img-placeholder-inner p {
  font-size: 14px; color: var(--text-secondary);
  font-weight: 500;
}
.img-placeholder-inner span { font-size: 12px; color: var(--text-muted); }
.about-cert-badge {
  position: absolute;
  bottom: -20px; right: -20px;
  background: var(--navy);
  color: #fff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  display: flex; align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
}
.cert-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center;
  justify-content: center;
  font-size: 18px; font-weight: 700;
  flex-shrink: 0;
}
.cert-title { font-size: 14px; font-weight: 600; }
.cert-sub { font-size: 12px; color: rgba(255,255,255,0.55); }
.about-intro p {
  font-size: 15px; color: var(--text-secondary);
  line-height: 1.9; margin-bottom: 16px;
}
.about-intro strong { color: var(--navy); font-weight: 600; }
.about-features {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px; margin-top: 28px;
}
.feature-item {
  display: flex; gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}
.feature-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.feature-icon-wrap {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.ic-blue { background: #e3f2fd; color: var(--blue); }
.ic-green { background: #e8f5e9; color: #2e7d32; }
.ic-amber { background: #fff8e1; color: #e65100; }
.ic-teal { background: #e0f2f1; color: #00695c; }
.feature-title { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 4px; }
.feature-desc { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

/* ===== 产品中心 ===== */
.product-tabs {
  display: flex; gap: 8px;
  margin-bottom: 36px;
  flex-wrap: wrap;
  justify-content: center;
}
.prod-tab {
  padding: 10px 24px;
  font-size: 14px; font-weight: 500;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: #fff;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.prod-tab:hover {
  border-color: var(--navy);
  color: var(--navy);
}
.prod-tab.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.prod-panel { display: none; }
.prod-panel.active { display: block; }
.prod-panel-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px; align-items: center;
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}
.prod-img-area {}
.prod-img {
  width: 100%; aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-lg);
}
.prod-img-placeholder {
  width: 100%; aspect-ratio: 4/3;
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
}
.prod-brand-badge {
  display: inline-block;
  font-size: 12px; font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.haier-badge { background: #e3f2fd; color: var(--blue); border: 1px solid #bbdefb; }
.casarte-badge { background: var(--accent-pale); color: var(--accent); border: 1px solid #c5d4ea; }
.mitsu-badge { background: #ffebee; color: #c62828; border: 1px solid #ffcdd2; }
.aireng-badge { background: #e8f5e9; color: #2e7d32; border: 1px solid #c8e6c9; }
.prod-name {
  font-family: 'Noto Serif SC', serif;
  font-size: 24px; font-weight: 700;
  color: var(--navy); margin-bottom: 14px; line-height: 1.3;
}
.prod-desc {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.9; margin-bottom: 24px;
}
.prod-series { display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.series-item { display: flex; gap: 12px; align-items: flex-start; }
.series-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 7px; flex-shrink: 0;
}
.series-name { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 2px; }
.series-desc { font-size: 12px; color: var(--text-muted); line-height: 1.6; }
.prod-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.prod-tag {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  background: var(--bg-section);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ===== 工程案例 ===== */
.case-filter {
  display: flex; gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.case-btn {
  padding: 9px 22px;
  font-size: 14px; font-weight: 500;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: #fff;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.case-btn:hover { border-color: var(--navy); color: var(--navy); }
.case-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-bottom: 48px;
}
.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.case-card.hidden { display: none; }
.case-img {
  position: relative;
  width: 100%; aspect-ratio: 16/10;
  background: var(--bg-section);
  overflow: hidden;
}
.case-real-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.case-img-placeholder {
  height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 12px;
}
.case-img-placeholder .img-icon { font-size: 32px; }
.case-type-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--navy);
  color: #fff;
  font-size: 11px; font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}
.case-info { padding: 20px; }
.case-title {
  font-size: 15px; font-weight: 600;
  color: var(--navy); margin-bottom: 10px;
  line-height: 1.4;
}
.case-meta {
  display: flex; gap: 12px;
  flex-wrap: wrap;
  font-size: 12px; color: var(--text-muted);
  margin-bottom: 10px;
}
.case-desc {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.7;
}
.cases-more { text-align: center; }
.cases-tip { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }

/* ===== 服务保障 ===== */
.service-process {
  display: flex; align-items: flex-start;
  gap: 0; margin-bottom: 64px;
  flex-wrap: wrap; justify-content: center;
}
.process-step {
  flex: 1; min-width: 140px; max-width: 200px;
  text-align: center; padding: 28px 16px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.step-num {
  font-size: 11px; font-weight: 700;
  color: var(--accent); letter-spacing: 1px;
  margin-bottom: 12px;
}
.step-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--bg-section);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
  color: var(--navy);
  transition: var(--transition);
}
.process-step:hover .step-icon {
  background: var(--navy);
  color: var(--gold-light);
}
.step-title { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.step-desc { font-size: 12px; color: var(--text-muted); line-height: 1.7; }
.process-arrow {
  font-size: 20px; color: var(--border);
  align-self: center;
  padding: 0 4px;
  flex-shrink: 0;
}
.service-promise {
  background: var(--navy);
  border-radius: var(--radius-xl);
  padding: 48px;
  color: #fff;
}
.promise-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px; font-weight: 700;
  margin-bottom: 32px;
  text-align: center;
  color: #c8d8f0;
}
.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.promise-item {
  display: flex; align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
.promise-item:hover { background: rgba(255,255,255,0.10); border-color: var(--accent-light); }
.promise-icon { font-size: 28px; line-height: 1; flex-shrink: 0; }
.promise-name { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.promise-desc { font-size: 12px; color: rgba(255,255,255,0.5); line-height: 1.6; }

/* ===== 联系方式 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px; margin-bottom: 56px;
}
.contact-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.contact-icon-wrap {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold-light);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.contact-label { font-size: 12px; color: var(--text-muted); letter-spacing: 1px; margin-bottom: 8px; }
.contact-value {
  display: block;
  font-size: 16px; font-weight: 600;
  color: var(--navy); line-height: 1.5;
  transition: var(--transition);
}
a.contact-value:hover { color: var(--accent); }
.contact-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.contact-form-area {
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: 48px;
  border: 1px solid var(--border);
}
.form-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px; font-weight: 700;
  color: var(--navy); margin-bottom: 32px;
  text-align: center;
}
.contact-form {}
.form-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px; margin-bottom: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 13px; font-weight: 600;
  color: var(--text-primary);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  font-size: 14px; font-family: inherit;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff; color: var(--text-primary);
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(13,33,55,0.08);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
  width: 100%; padding: 15px 32px;
  background: var(--navy);
  color: #fff;
  font-size: 16px; font-weight: 600;
  font-family: inherit;
  border: none; border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px; letter-spacing: 1px;
}
.btn-submit:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(13,33,55,0.3);
}
.form-tip {
  text-align: center;
  font-size: 13px; color: var(--text-muted);
  margin-top: 14px;
}
.form-tip strong { color: var(--navy); }
.form-group { margin-bottom: 20px; }
.form-row .form-group { margin-bottom: 0; }

/* ===== 页脚 ===== */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
}
.footer-inner {}
.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px; padding: 64px 0 48px;
}
.footer-brand {}
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
.logo-icon-sm {
  width: 36px; height: 36px;
  background: var(--gold);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
  color: var(--navy); flex-shrink: 0;
  font-family: 'Noto Serif SC', serif;
}
.logo-icon-sm span { color: var(--navy-mid); }
.footer-logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
  background: #fff;
  border-radius: 4px;
  padding: 2px 5px;
}
.footer-logo span {
  font-size: 16px; font-weight: 600; color: #fff;
}
.footer-intro {
  font-size: 13px; line-height: 1.9;
  color: rgba(255,255,255,0.45);
  margin-bottom: 20px;
}
.footer-hotline {
  display: flex; align-items: center; gap: 12px;
  color: #b0c8e8;
  font-size: 14px;
}
.footer-hotline span { font-size: 20px; }
.footer-hotline div { display: flex; flex-direction: column; gap: 2px; font-weight: 600; }
.footer-nav-group {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-col {}
.footer-col-title {
  font-size: 14px; font-weight: 600;
  color: #fff; margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  padding: 5px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: #b0c8e8; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 12px; color: rgba(255,255,255,0.3);
}
.footer-beian {
  display: flex; align-items: center; gap: 8px;
  width: 100%; justify-content: center;
  margin-top: 8px;
}
.beian-link {
  color: rgba(255,255,255,0.3); text-decoration: none;
  display: inline-flex; align-items: center; gap: 4px;
  transition: var(--transition); font-size: 11px;
}
.beian-link:hover { color: #b0c8e8; }
.beian-icon {
  width: 16px; height: 16px; vertical-align: middle;
  object-fit: contain;
}
.beian-sep { color: rgba(255,255,255,0.15); }

/* ===== 悬浮按钮 ===== */
.float-contact {
  position: fixed;
  right: 24px; bottom: 80px;
  z-index: 999;
  display: flex; flex-direction: column;
  gap: 10px;
}
.float-btn {
  display: flex; align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 30px;
  font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  white-space: nowrap;
}
.float-call {
  background: var(--navy);
  color: #b0c8e8;
  border: 1.5px solid rgba(107,124,153,0.40);
}
.float-call:hover {
  background: var(--accent);
  color: #fff;
  transform: translateX(-4px);
}
.float-msg {
  background: var(--accent);
  color: #fff;
}
.float-msg:hover {
  background: var(--accent-light);
  transform: translateX(-4px);
}
.back-top {
  position: fixed;
  right: 28px; bottom: 28px;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  border: none; cursor: pointer;
  font-size: 18px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  z-index: 999;
  opacity: 0;
}
.back-top.visible { opacity: 1; }
.back-top:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }

/* ===== 门店地址卡片 ===== */
.contact-card-addr {
  grid-column: span 2;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 28px;
}
.contact-card-addr .contact-icon-wrap {
  margin: 0;
  flex-shrink: 0;
}
.store-addr-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}
.store-addr-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.store-brand-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  width: fit-content;
  letter-spacing: 0.5px;
}
.store-tag-mitsu {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #ffcdd2;
}
.store-tag-casarte {
  background: var(--accent-pale);
  color: var(--accent);
  border: 1px solid #c5d4ea;
}
.store-addr-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 响应式：地址卡片 ===== */
@media (max-width: 1024px) {
  .contact-card-addr { grid-column: span 2; }
}
@media (max-width: 768px) {
  .contact-card-addr { grid-column: span 2; }
}
@media (max-width: 480px) {
  .contact-card-addr { grid-column: 1; flex-direction: column; }
}
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-cert-badge { position: static; margin-top: 16px; width: fit-content; }
  .about-features { grid-template-columns: 1fr 1fr; }
  .prod-panel-inner { grid-template-columns: 1fr; gap: 32px; padding: 32px; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .promise-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-nav-group { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .nav-contact { display: none; }
  .hamburger { display: flex; }
  .section-pad { padding: 60px 0; }
  .hero-inner { padding: 60px 24px 80px; }
  .hero-stats { gap: 0; justify-content: center; }
  .stat-item { padding: 0 16px; }
  .stat-num { font-size: 28px; }
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-ghost { text-align: center; }
  .brand-strip-inner { flex-direction: column; gap: 16px; }
  .brand-logos { justify-content: center; }
  .brand-logo-sep { display: none; }
  .cases-grid { grid-template-columns: 1fr; }
  .service-process { flex-direction: column; align-items: center; }
  .process-arrow { transform: rotate(90deg); align-self: center; }
  .process-step { max-width: 100%; width: 100%; }
  .promise-grid { grid-template-columns: 1fr; }
  .service-promise { padding: 32px 24px; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-form-area { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { padding: 40px 0 32px; }
  .footer-nav-group { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .float-contact { right: 16px; bottom: 72px; }
  .float-btn span { display: none; }
  .float-btn { padding: 12px; border-radius: 50%; width: 48px; height: 48px; justify-content: center; }
  .about-features { grid-template-columns: 1fr; }
  .product-tabs { gap: 6px; }
  .prod-tab { padding: 8px 14px; font-size: 13px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section-header { margin-bottom: 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-brands { gap: 8px; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .stat-divider { display: none; }
  .stat-item { padding: 0 12px; }
  .footer-nav-group { grid-template-columns: 1fr 1fr; }
  .brand-logo-item { min-width: 120px; }
}

/* ===== 关于我们实景图 ===== */
.about-img-real {
  width: 100%; aspect-ratio: 10/7;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.about-main-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.about-img-real:hover .about-main-img {
  transform: scale(1.04);
}

/* ===== 案例真实图片 ===== */
.case-real-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.case-card:hover .case-real-img {
  transform: scale(1.05);
}

/* ===== 门店实景画廊 ===== */
.store-gallery { margin-top: 0; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 12px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-section);
  cursor: pointer;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-main {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: unset;
}
.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(13,33,55,0.75));
  color: rgba(255,255,255,0.9);
  font-size: 12px; padding: 24px 12px 10px;
  text-align: center;
  transition: opacity 0.3s ease;
  opacity: 0;
}
.gallery-item:hover .gallery-caption { opacity: 1; }

@media (max-width: 768px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-main { grid-column: span 2; grid-row: span 1; aspect-ratio: 4/3; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-main { grid-column: 1; }
}

/* ===== 产品参数表 ===== */
.prod-params {
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.params-title {
  font-size: 13px; font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-section);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.3px;
}
.params-table {
  width: 100%; border-collapse: collapse;
  font-size: 12px;
}
.params-table th {
  background: var(--navy);
  color: rgba(255,255,255,0.85);
  padding: 9px 14px;
  font-weight: 600;
  text-align: left;
  font-size: 12px;
}
.params-table td {
  padding: 9px 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}
.params-table tr:last-child td { border-bottom: none; }
.params-table tr:nth-child(even) td { background: var(--bg-light); }
.params-table tr:hover td { background: var(--accent-pale); color: var(--navy); }

/* ===== 资质荣誉 ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cert-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.cert-card-icon {
  display: flex; align-items: center; justify-content: center;
  height: 80px;
  flex-shrink: 0;
}
.cert-icon-haier { background: linear-gradient(135deg, #1565c0, #1976d2); color: #fff; }
.cert-icon-casarte { background: linear-gradient(135deg, #5d4037, #8d6e63); color: #ffd54f; }
.cert-icon-mitsu { background: linear-gradient(135deg, #b71c1c, #e53935); color: #fff; }
.cert-icon-qual { background: linear-gradient(135deg, #1b5e20, #2e7d32); color: #fff; }
.cert-icon-exp { background: linear-gradient(135deg, #0d2137, #163352); color: var(--gold-light); }
.cert-icon-after { background: linear-gradient(135deg, #006064, #00838f); color: #fff; }
.cert-card-body {
  padding: 20px 22px 22px;
  flex: 1;
}
.cert-card-brand {
  font-size: 11px; font-weight: 700;
  color: var(--text-muted); letter-spacing: 1.5px;
  text-transform: uppercase; margin-bottom: 6px;
}
.cert-card-name {
  font-size: 17px; font-weight: 700;
  color: var(--navy); margin-bottom: 4px;
  font-family: 'Noto Serif SC', serif;
}
.cert-card-title {
  font-size: 13px; font-weight: 600;
  color: var(--accent); margin-bottom: 10px;
}
.cert-card-desc {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.8; margin-bottom: 14px;
}
.cert-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.cert-tag {
  font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: 20px;
  letter-spacing: 0.3px;
}
.cert-tag-blue { background: #e3f2fd; color: var(--blue); border: 1px solid #bbdefb; }
.cert-tag-gold { background: #fff8e1; color: #e65100; border: 1px solid #ffe082; }
.cert-tag-red { background: #ffebee; color: #c62828; border: 1px solid #ffcdd2; }
.cert-tag-green { background: #e8f5e9; color: #2e7d32; border: 1px solid #c8e6c9; }
.cert-tag-navy { background: var(--accent-pale); color: var(--navy); border: 1px solid #c5d4ea; }
.cert-tag-teal { background: #e0f2f1; color: #006064; border: 1px solid #b2dfdb; }

@media (max-width: 1024px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .cert-grid { grid-template-columns: 1fr; }
}

/* ===== 客户评价 ===== */
.review-stats {
  display: flex; align-items: center;
  justify-content: center;
  gap: 0;
  background: var(--navy);
  border-radius: var(--radius-xl);
  padding: 36px 48px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.review-stat-item {
  text-align: center;
  padding: 0 40px;
  flex-shrink: 0;
}
.review-stat-num {
  font-family: 'Noto Serif SC', serif;
  font-size: 32px; font-weight: 700;
  color: #c8d8f0; line-height: 1;
  margin-bottom: 6px;
}
.review-star-row {
  font-size: 20px;
  color: #f9c12e;
  letter-spacing: 2px;
  margin-bottom: 6px;
}
.review-stat-label {
  font-size: 13px; color: rgba(255,255,255,0.5);
  white-space: nowrap;
}
.review-stat-sep {
  width: 1px; height: 48px;
  background: rgba(255,255,255,0.12);
  flex-shrink: 0;
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.review-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.review-card-featured {
  border-color: var(--accent);
  background: var(--accent-pale);
}
.review-card-top {
  display: flex; align-items: center;
  gap: 12px; margin-bottom: 16px;
}
.review-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700;
  color: #fff; flex-shrink: 0;
}
.rv-1 { background: linear-gradient(135deg, #1565c0, #42a5f5); }
.rv-2 { background: linear-gradient(135deg, #7b1fa2, #ba68c8); }
.rv-3 { background: linear-gradient(135deg, #e65100, #ff9800); }
.rv-4 { background: linear-gradient(135deg, #1b5e20, #66bb6a); }
.rv-5 { background: linear-gradient(135deg, #b71c1c, #ef5350); }
.rv-6 { background: linear-gradient(135deg, #004d40, #26a69a); }
.review-user { flex: 1; }
.review-name {
  font-size: 14px; font-weight: 600;
  color: var(--navy); margin-bottom: 2px;
}
.review-project {
  font-size: 12px; color: var(--text-muted);
}
.review-stars {
  font-size: 14px; color: #f9c12e;
  letter-spacing: 1px; flex-shrink: 0;
}
.review-text {
  font-size: 13px; color: var(--text-secondary);
  line-height: 1.9; flex: 1;
  margin-bottom: 16px;
}
.review-footer {
  display: flex; align-items: center;
  justify-content: space-between; gap: 8px;
}
.review-tag {
  font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: 20px;
  background: var(--accent-pale);
  color: var(--accent);
  border: 1px solid #c5d4ea;
}
.review-date {
  font-size: 11px; color: var(--text-muted);
  white-space: nowrap;
}
.reviews-cta {
  text-align: center;
}
.reviews-tip {
  font-size: 14px; color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.8;
}
.reviews-tip strong { color: var(--navy); }

@media (max-width: 1024px) {
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .review-stats { padding: 28px 24px; }
  .review-stat-item { padding: 0 24px; }
}
@media (max-width: 768px) {
  .reviews-grid { grid-template-columns: 1fr; }
  .review-stats { gap: 16px; flex-wrap: wrap; justify-content: center; }
  .review-stat-sep { display: none; }
  .review-stat-item { padding: 12px 20px; }
}

/* ===== 产品 BANNER 轮播 ===== */
.prod-banner {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--navy);
  min-height: 480px;
}
.banner-slider {
  position: relative;
  width: 100%;
  min-height: 480px;
}
.banner-slide {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  width: 100%;
  display: flex;
  align-items: center;
  padding: 72px 0 64px;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}
.banner-slide.active {
  opacity: 1;
  pointer-events: auto;
  position: relative;
  min-height: 480px;
}

/* 各 Banner 背景色调 */
.banner-haier {
  background: linear-gradient(135deg, #071524 0%, #0a1e36 40%, #0d2850 70%, #0e3060 100%);
}
.banner-casarte {
  background: linear-gradient(135deg, #1a0e06 0%, #2d1a0a 40%, #3d2210 70%, #4a2c14 100%);
}
.banner-mitsu {
  background: linear-gradient(135deg, #071810 0%, #0a2416 40%, #0c2e1a 70%, #0e3820 100%);
}

/* 装饰光晕 */
.banner-haier .banner-bg-shape {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(21,101,192,0.22) 0%, transparent 60%),
    radial-gradient(ellipse 30% 40% at 10% 80%, rgba(74,111,165,0.12) 0%, transparent 50%);
}
.banner-casarte .banner-bg-shape {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(184,146,42,0.28) 0%, transparent 60%),
    radial-gradient(ellipse 30% 40% at 10% 80%, rgba(212,168,67,0.12) 0%, transparent 50%);
}
.banner-mitsu .banner-bg-shape {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(46,125,50,0.25) 0%, transparent 60%),
    radial-gradient(ellipse 30% 40% at 10% 80%, rgba(30,100,40,0.12) 0%, transparent 50%);
}

/* 内容排版 */
.banner-content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column;
  align-items: flex-start;
  max-width: 560px;
  padding-top: 0;
}
.banner-tag {
  display: inline-block;
  background: rgba(107,140,199,0.18);
  border: 1px solid rgba(138,180,224,0.35);
  color: #9ec4e8;
  font-size: 12px; font-weight: 600;
  padding: 5px 14px; border-radius: 20px;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}
.banner-tag-gold {
  background: rgba(184,146,42,0.16);
  border-color: rgba(212,168,67,0.35);
  color: #d4a843;
}
.banner-tag-red {
  background: rgba(46,125,50,0.18);
  border-color: rgba(76,175,80,0.35);
  color: #81c784;
}
.banner-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(30px, 4.5vw, 50px);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.banner-subtitle {
  font-size: clamp(14px, 1.6vw, 16px);
  color: rgba(255,255,255,0.60);
  line-height: 1.9;
  margin-bottom: 22px;
}
.banner-features {
  list-style: none;
  margin-bottom: 28px;
  display: flex; flex-direction: column; gap: 8px;
}
.banner-features li {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  letter-spacing: 0.3px;
}
.banner-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.banner-btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 14px; font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.banner-btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74,111,165,0.40);
}
.banner-btn-gold {
  background: #a07820;
}
.banner-btn-gold:hover {
  background: #c49328;
  box-shadow: 0 6px 20px rgba(184,146,42,0.40);
}
.banner-btn-green {
  background: #2e7d32;
}
.banner-btn-green:hover {
  background: #388e3c;
  box-shadow: 0 6px 20px rgba(46,125,50,0.40);
}
.banner-btn-ghost {
  display: inline-block;
  background: transparent;
  color: rgba(255,255,255,0.80);
  font-size: 14px; font-weight: 500;
  padding: 11px 26px;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(255,255,255,0.28);
  transition: var(--transition);
}
.banner-btn-ghost:hover {
  border-color: rgba(255,255,255,0.65);
  background: rgba(255,255,255,0.06);
}

/* 右侧视觉装饰 */
.banner-visual {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 45%;
  display: flex; align-items: center; justify-content: center;
  z-index: 1;
  pointer-events: none;
}
.banner-icon-wrap {
  position: relative;
  width: 320px; height: 320px;
}
.banner-brand-circle {
  width: 200px; height: 200px;
  border-radius: 50%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid;
  animation: bannerCircleSpin 20s linear infinite;
  gap: 4px;
}
@keyframes bannerCircleSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}
.banner-brand-cn, .banner-brand-en {
  animation: bannerTextCounter 20s linear infinite;
}
@keyframes bannerTextCounter {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}
.haier-circle {
  background: radial-gradient(circle, rgba(21,101,192,0.30) 0%, rgba(13,40,80,0.50) 100%);
  border-color: rgba(138,180,224,0.45);
}
.casarte-circle {
  background: radial-gradient(circle, rgba(184,146,42,0.30) 0%, rgba(77,44,10,0.50) 100%);
  border-color: rgba(212,168,67,0.45);
}
.mitsu-circle {
  background: radial-gradient(circle, rgba(46,125,50,0.30) 0%, rgba(14,46,20,0.50) 100%);
  border-color: rgba(129,199,132,0.45);
}
.banner-brand-cn {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px; font-weight: 700;
  color: rgba(255,255,255,0.92);
  letter-spacing: 2px;
}
.banner-brand-en {
  font-size: 10px; font-weight: 600;
  color: rgba(255,255,255,0.50);
  letter-spacing: 2px;
}

/* 浮动信息卡 */
.banner-float-card {
  position: absolute;
  top: 8%; left: 0;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  display: flex; align-items: center; gap: 10px;
  min-width: 148px;
  animation: bannerFloat 4s ease-in-out infinite;
}
.banner-float-card2 {
  top: auto; bottom: 8%; left: auto; right: 0;
  animation-delay: 2s;
}
@keyframes bannerFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.float-icon { font-size: 22px; flex-shrink: 0; }
.float-title {
  font-size: 13px; font-weight: 600;
  color: rgba(255,255,255,0.90);
  line-height: 1.3;
}
.float-sub {
  font-size: 11px; color: rgba(255,255,255,0.55);
  margin-top: 2px;
}

/* 切换箭头 */
.banner-arrow {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  z-index: 10;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.20);
  color: rgba(255,255,255,0.85);
  font-size: 26px; line-height: 1;
  cursor: pointer;
  transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
  padding-bottom: 2px;
}
.banner-arrow:hover {
  background: rgba(255,255,255,0.20);
  border-color: rgba(255,255,255,0.45);
}
.banner-prev { left: 20px; }
.banner-next { right: 20px; }

/* 指示点 */
.banner-dots {
  position: absolute;
  bottom: 18px; left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex; gap: 8px; align-items: center;
}
.banner-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.30);
  border: none; cursor: pointer;
  transition: var(--transition);
  padding: 0;
}
.banner-dot.active {
  background: rgba(255,255,255,0.90);
  width: 24px;
  border-radius: 4px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .banner-visual { width: 42%; }
  .banner-icon-wrap { width: 260px; height: 260px; }
  .banner-brand-circle { width: 160px; height: 160px; }
  .banner-brand-cn { font-size: 18px; }
}
@media (max-width: 768px) {
  .banner-slide { min-height: 420px; padding: 56px 0 52px; }
  .banner-visual { display: none; }
  .banner-content { max-width: 100%; }
}
@media (max-width: 480px) {
  .banner-slide { min-height: 380px; padding: 48px 0 48px; }
  .banner-title { letter-spacing: 1px; }
  .banner-cta { flex-direction: column; }
  .banner-btn-primary, .banner-btn-ghost { text-align: center; }
}