/* ========================================
   北京焕翼科技有限公司 - 企业官网样式
   主色调：深蓝 + 浅灰 + 白色
   辅助色：科技蓝
   ======================================== */

/* ---------- CSS 变量 ---------- */
:root {
  --primary-dark: #0a2540;
  --primary: #103a6b;
  --primary-light: #1a5189;
  --accent: #2563eb;
  --accent-light: #3b82f6;
  --accent-glow: rgba(37, 99, 235, 0.15);
  --bg-light: #f4f7fb;
  --bg-gray: #eef2f7;
  --bg-white: #ffffff;
  --text-dark: #0f1e2e;
  --text-body: #3d4f61;
  --text-gray: #6b7d92;
  --text-light: #9ba9ba;
  --border: #dfe6ee;
  --border-light: #ebf0f5;
  --shadow-sm: 0 2px 8px rgba(16, 58, 107, 0.06);
  --shadow-md: 0 6px 24px rgba(16, 58, 107, 0.10);
  --shadow-lg: 0 12px 40px rgba(16, 58, 107, 0.14);
  --radius: 10px;
  --radius-lg: 16px;
  --nav-h: 68px;
  --max-w: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

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

/* ---------- 通用容器 ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title h2 {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 1px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.section-title p {
  margin-top: 24px;
  font-size: 1.02rem;
  color: var(--text-gray);
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.98);
}

.navbar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-dark);
}

.navbar-logo .logo-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.navbar-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar-logo .logo-text .en {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 1px;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-menu a {
  position: relative;
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  transition: var(--transition);
  border-radius: 6px;
}

.navbar-menu a:hover,
.navbar-menu a.active {
  color: var(--accent);
}

.navbar-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 1px;
  background: var(--accent);
}

.navbar-cta {
  margin-left: 16px;
  padding: 9px 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.4);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}

.navbar-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 1px;
  transition: var(--transition);
}

.navbar-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}
.navbar-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #0a2540 0%, #103a6b 45%, #1a5189 100%);
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.25) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.15) 0%, transparent 45%);
  z-index: 0;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 60px;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-content {
  flex: 1;
  max-width: 620px;
}

.hero-content .tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(59, 130, 246, 0.35);
  border-radius: 30px;
  font-size: 0.82rem;
  color: #93c5fd;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero-content .tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-light);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-content h1 {
  font-size: 2.6rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.hero-content h1 .highlight {
  background: linear-gradient(90deg, #60a5fa, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .subtitle {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 540px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--accent-light);
  background: rgba(37, 99, 235, 0.12);
  transform: translateY(-3px);
}

/* Hero 视觉 */
.hero-visual {
  flex: 0 0 420px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual svg {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* ---------- 指标条 ---------- */
.stats-bar {
  background: var(--primary-dark);
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item .num {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  font-family: "DIN Alternate", "Helvetica Neue", sans-serif;
}

.stat-item .num .unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-left: 2px;
}

.stat-item .label {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* ---------- 核心业务卡片 ---------- */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.business-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.business-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.business-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-glow);
}

.business-card:hover::before {
  transform: scaleX(1);
}

.business-card .icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(59, 130, 246, 0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: var(--transition);
}

.business-card:hover .icon-wrap {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.business-card .icon-wrap svg {
  width: 32px;
  height: 32px;
  stroke: var(--accent);
  transition: var(--transition);
}

.business-card:hover .icon-wrap svg {
  stroke: #fff;
}

.business-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.business-card p {
  font-size: 0.93rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 20px;
}

.business-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.business-card .tag-chip {
  padding: 4px 12px;
  font-size: 0.78rem;
  color: var(--accent);
  background: var(--accent-glow);
  border-radius: 20px;
  font-weight: 500;
}

/* ---------- 核心优势 ---------- */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

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

.advantage-card .adv-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.advantage-card .adv-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.advantage-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 0.88rem;
  color: var(--text-gray);
  line-height: 1.7;
}

/* ---------- 场景案例 ---------- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.scenario-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.scenario-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.scenario-visual {
  height: 200px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.scenario-visual svg {
  width: 80px;
  height: 80px;
  opacity: 0.9;
}

.scenario-visual.bg-1 {
  background: linear-gradient(135deg, #0a2540, #1a5189);
}
.scenario-visual.bg-2 {
  background: linear-gradient(135deg, #103a6b, #2563eb);
}
.scenario-visual.bg-3 {
  background: linear-gradient(135deg, #1a5189, #3b82f6);
}

.scenario-body {
  padding: 24px 28px 28px;
}

.scenario-body .scene-tag {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.scenario-body h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.scenario-body p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.7;
}

/* ---------- 子页面 Hero ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: calc(var(--nav-h) + 70px) 0 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 30% 20%, rgba(37, 99, 235, 0.2) 0%, transparent 40%),
    radial-gradient(circle at 70% 80%, rgba(59, 130, 246, 0.12) 0%, transparent 45%);
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.page-hero p {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 640px;
  margin: 0 auto;
}

/* ---------- 关于我们：公司简介 ---------- */
.about-intro {
  display: flex;
  gap: 50px;
  align-items: center;
}

.about-intro .text-col {
  flex: 1;
}

.about-intro .visual-col {
  flex: 0 0 400px;
}

.about-intro .text-col h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.about-intro .text-col p {
  font-size: 0.96rem;
  color: var(--text-body);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-intro .highlight-box {
  display: flex;
  gap: 24px;
  margin-top: 28px;
  padding: 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
}

.about-intro .highlight-box .item {
  flex: 1;
}

.about-intro .highlight-box .item .val {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}

.about-intro .highlight-box .item .lbl {
  font-size: 0.82rem;
  color: var(--text-gray);
}

/* ---------- 使命愿景 ---------- */
.mv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.mv-card {
  padding: 44px 40px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.mv-card.mission {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
}

.mv-card.vision {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
}

.mv-card .mv-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.mv-card .mv-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.mv-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.mv-card p {
  font-size: 1.02rem;
  line-height: 1.9;
  opacity: 0.9;
}

/* ---------- 关于我们：优势 ---------- */
.about-adv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.about-adv-card {
  display: flex;
  gap: 20px;
  padding: 32px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.about-adv-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.about-adv-card .num {
  flex: 0 0 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-adv-card .content h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.about-adv-card .content p {
  font-size: 0.9rem;
  color: var(--text-gray);
  line-height: 1.8;
}

/* ---------- 团队介绍 ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.team-card {
  text-align: center;
  padding: 40px 32px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.team-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.team-card .avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.6rem;
  font-weight: 700;
}

.team-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.team-card .bio {
  font-size: 0.86rem;
  color: var(--text-gray);
  line-height: 1.8;
  text-align: left;
}

/* ---------- 产品服务：平台产品 ---------- */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.platform-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}

.platform-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.platform-header {
  padding: 36px 36px 28px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  position: relative;
  overflow: hidden;
}

.platform-header .platform-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.platform-header .platform-icon svg {
  width: 26px;
  height: 26px;
  stroke: #fff;
}

.platform-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.platform-header .positioning {
  font-size: 0.88rem;
  opacity: 0.75;
}

.platform-body {
  padding: 32px 36px;
}

.platform-body .block-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.platform-body .block-label::before {
  content: '';
  width: 4px;
  height: 14px;
  border-radius: 2px;
  background: var(--accent);
}

.platform-body .feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}

.platform-body .feature-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-body);
}

.platform-body .feature-list li svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.platform-body .value-box {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.platform-body .value-box .value-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
}

.platform-body .value-box .value-item:last-child {
  margin-bottom: 0;
}

.platform-body .value-box .value-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

.platform-body .value-box .value-item span {
  font-size: 0.86rem;
  color: var(--text-body);
  line-height: 1.7;
}

/* ---------- 产品服务：硬件产品 ---------- */
.hardware-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.hardware-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}

.hardware-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.hardware-visual {
  height: 160px;
  background: linear-gradient(135deg, var(--bg-light), var(--bg-gray));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hardware-visual svg {
  width: 56px;
  height: 56px;
  stroke: var(--primary);
}

.hardware-body {
  padding: 20px 22px 24px;
}

.hardware-body h4 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.hardware-body .hw-desc {
  font-size: 0.84rem;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 12px;
}

.hardware-body .hw-spec {
  font-size: 0.78rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-light);
  padding-top: 10px;
}

.hardware-body .hw-spec .spec-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.hardware-body .hw-spec .spec-item .lbl {
  color: var(--text-light);
}

.hardware-body .hw-spec .spec-item .val {
  color: var(--text-body);
  font-weight: 500;
}

/* ---------- 落地服务 ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 36px 32px;
  transition: var(--transition);
  position: relative;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--accent-glow);
}

.service-card .svc-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 3rem;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
}

.service-card .svc-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(59, 130, 246, 0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card .svc-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--accent);
}

.service-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.service-card .svc-desc {
  font-size: 0.88rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 16px;
}

.service-card .svc-flow {
  font-size: 0.82rem;
  color: var(--text-body);
}

.service-card .svc-flow .flow-label {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.service-card .svc-flow .flow-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.service-card .svc-flow .flow-steps span {
  padding: 3px 10px;
  background: var(--bg-light);
  border-radius: 12px;
  font-size: 0.78rem;
}

.service-card .svc-flow .flow-steps .arrow {
  color: var(--accent);
  padding: 0 2px;
}

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info {
  padding: 10px 0;
}

.contact-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 28px;
}

.contact-info .info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-info .info-item .info-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(59, 130, 246, 0.04));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info .info-item .info-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
}

.contact-info .info-item .info-text .lbl {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 2px;
}

.contact-info .info-item .info-text .val {
  font-size: 1rem;
  color: var(--text-dark);
  font-weight: 600;
}

/* 表单 */
.contact-form {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
}

.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #ef4444;
  margin-left: 2px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.92rem;
  color: var(--text-dark);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--bg-white);
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.captcha-row {
  display: flex;
  gap: 12px;
}

.captcha-row input {
  flex: 1;
}

.captcha-img {
  flex: 0 0 110px;
  height: 44px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 4px;
  cursor: pointer;
  user-select: none;
  font-family: "Courier New", monospace;
  transition: var(--transition);
}

.captcha-img:hover {
  opacity: 0.85;
}

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.4);
}

.form-success {
  display: none;
  padding: 16px 20px;
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  border-radius: 8px;
  color: #065f46;
  font-size: 0.9rem;
  margin-bottom: 20px;
  align-items: center;
  gap: 10px;
}

.form-success.show {
  display: flex;
}

.form-success svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* 地图 */
.map-section {
  margin-top: 60px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.map-section iframe {
  width: 100%;
  height: 380px;
  border: none;
  display: block;
}

/* 商务合作分流 */
.contact-channels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.channel-card {
  text-align: center;
  padding: 36px 28px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.channel-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.channel-card .ch-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}

.channel-card .ch-icon svg {
  width: 28px;
  height: 28px;
  stroke: #fff;
}

.channel-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.channel-card p {
  font-size: 0.86rem;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 10px;
}

.channel-card .ch-contact {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 600;
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .footer-logo .logo-icon {
  width: 36px;
  height: 36px;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-brand .footer-contact-item {
  font-size: 0.84rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand .footer-contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.6;
}

.footer-col h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

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

.footer-col ul li a {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent-light);
}

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

.footer-qr .qr-box {
  width: 110px;
  height: 110px;
  background: #fff;
  border-radius: 10px;
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-qr .qr-box svg {
  width: 80px;
  height: 80px;
}

.footer-qr p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
  transition: var(--transition);
}

.footer-bottom a:hover {
  color: var(--accent-light);
}

/* ---------- 回到顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  border: none;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent);
  transform: translateY(-3px);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ---------- 资质荣誉 ---------- */
/* 顶部统计条 */
.cert-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0 auto 48px;
  max-width: 880px;
}

.cert-stat {
  text-align: center;
  padding: 22px 16px;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.cert-stat:hover {
  transform: translateY(-3px);
  border-color: var(--accent-glow);
  box-shadow: var(--shadow-md);
}

.cert-stat .num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}

.cert-stat .lbl {
  font-size: 0.85rem;
  color: var(--text-gray);
}

/* Tabs 标签栏 */
.cert-tabs {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.cert-tab {
  padding: 14px 26px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-gray);
  background: transparent;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cert-tab:hover {
  color: var(--accent);
}

.cert-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.cert-tab .tab-count {
  display: inline-block;
  min-width: 22px;
  padding: 2px 8px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent);
  border-radius: 10px;
  font-size: 0.78rem;
  font-weight: 700;
}

.cert-tab.active .tab-count {
  background: var(--accent);
  color: #fff;
}

/* Tab 面板（带动画） */
.cert-tab-panel {
  display: none;
  animation: tabFade .35s ease;
}

.cert-tab-panel.active {
  display: block;
}

@keyframes tabFade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 证书网格：响应式 4 / 3 / 2 / 1 列 */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

/* 1-3 张证书的居中容器 */
.cert-grid.few {
  max-width: 1000px;
  margin: 0 auto;
}

.cert-tip {
  text-align: center;
  margin-top: 36px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.cert-tip .tip-icon {
  display: inline-block;
  vertical-align: -3px;
  margin-right: 6px;
  color: var(--accent);
}

.cert-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-glow);
}

.cert-card .cert-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  z-index: 2;
}

.cert-card .cert-img-wrap {
  height: 220px;
  background: linear-gradient(135deg, #f4f8fc, #ebf0f8);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  position: relative;
  overflow: hidden;
}

.cert-card .cert-img-wrap img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

.cert-card:hover .cert-img-wrap img {
  transform: scale(1.04);
}

.cert-card .cert-body {
  padding: 22px 24px 24px;
  text-align: center;
  border-top: 1px solid var(--border-light);
}

.cert-card .cert-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.cert-card .cert-meta {
  font-size: 0.78rem;
  color: var(--text-gray);
  line-height: 1.7;
}

.cert-card .cert-meta .meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3px 0;
}

.cert-card .cert-meta .meta-row .lbl {
  color: var(--text-light);
}

.cert-card .cert-meta .meta-row .val {
  color: var(--text-body);
  font-weight: 600;
  font-family: "Courier New", monospace;
  letter-spacing: 0.3px;
}

.cert-card .cert-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.84rem;
  color: var(--accent);
  font-weight: 600;
}

.cert-card .cert-link svg {
  width: 14px;
  height: 14px;
}

/* 大图预览 */
.cert-modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 37, 64, 0.92);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
  backdrop-filter: blur(4px);
}

.cert-modal.show {
  display: flex;
}

.cert-modal .modal-inner {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.cert-modal img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.cert-modal .modal-close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.cert-modal .modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* 关于页 - 软件著作权弹窗（保留兼容，2列备用） */
.software-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* 联系页 - 合规信息区 */
.compliance-block {
  margin-top: 60px;
  padding: 36px 40px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.compliance-block h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-light);
}

.compliance-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 32px;
}

.compliance-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-light);
  border-radius: 10px;
}

.compliance-item .ci-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.compliance-item .ci-icon svg {
  width: 16px;
  height: 16px;
  stroke: #fff;
}

.compliance-item .ci-text {
  flex: 1;
}

.compliance-item .ci-text .ci-label {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 2px;
}

.compliance-item .ci-text .ci-value {
  font-size: 0.94rem;
  color: var(--text-dark);
  font-weight: 600;
  font-family: "Courier New", monospace;
  letter-spacing: 0.3px;
  word-break: break-all;
}

.compliance-item .ci-text .ci-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
}

.compliance-item .ci-text .ci-link:hover {
  text-decoration: underline;
}

@media (max-width: 1200px) {
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .cert-grid.compact {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1024px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cert-grid.compact {
    grid-template-columns: 1fr;
  }
  .software-grid {
    grid-template-columns: 1fr;
  }
  .compliance-list {
    grid-template-columns: 1fr;
  }
  .cert-stat .num {
    font-size: 1.65rem;
  }
}

@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
  .cert-card .cert-img-wrap {
    height: 180px;
  }
  .compliance-block {
    padding: 24px 22px;
  }
  /* 证书stats移动端：横向滚动条或换行 */
  .cert-stats {
    grid-template-columns: 1fr;
    gap: 12px;
    max-width: 360px;
  }
  /* tabs 横向滚动 */
  .cert-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }
  .cert-tabs::-webkit-scrollbar {
    display: none;
  }
  .cert-tab {
    padding: 12px 18px;
    font-size: 0.88rem;
    white-space: nowrap;
    flex-shrink: 0;
  }
}

/* ---------- 滚动动画 ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   响应式 - 平板
   ======================================== */
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 2.2rem;
  }

  .hero-visual {
    display: none;
  }

  .business-grid,
  .scenario-grid,
  .team-grid,
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .about-intro {
    flex-direction: column;
  }

  .about-intro .visual-col {
    flex: none;
    width: 100%;
    max-width: 400px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* ========================================
   响应式 - 移动端
   ======================================== */
@media (max-width: 768px) {
  .section {
    padding: 50px 0;
  }

  .section-title h2 {
    font-size: 1.6rem;
  }

  .section-title {
    margin-bottom: 40px;
  }

  /* 导航 */
  .navbar-menu {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    width: 100%;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 0;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    transition: var(--transition);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }

  .navbar-menu.open {
    transform: translateY(0);
  }

  .navbar-menu a {
    padding: 14px 16px;
    border-radius: 8px;
    border-bottom: 1px solid var(--border-light);
  }

  .navbar-menu a.active::after {
    display: none;
  }

  .navbar-cta {
    margin: 12px 0 0;
    text-align: center;
    justify-content: center;
  }

  .navbar-toggle {
    display: flex;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: calc(var(--nav-h) + 40px) 0 60px;
  }

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

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stat-item .num {
    font-size: 1.8rem;
  }

  /* Grids */
  .business-grid,
  .scenario-grid,
  .team-grid,
  .service-grid,
  .platform-grid,
  .about-adv-grid,
  .mv-grid,
  .contact-channels {
    grid-template-columns: 1fr;
  }

  .advantage-grid,
  .hardware-grid {
    grid-template-columns: 1fr;
  }

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

  /* About */
  .about-intro .highlight-box {
    flex-direction: column;
    gap: 16px;
  }

  /* Platform */
  .platform-body .feature-list {
    grid-template-columns: 1fr;
  }

  .platform-header,
  .platform-body {
    padding: 24px;
  }

  /* Contact */
  .contact-form {
    padding: 28px 22px;
  }

  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    text-align: left;
  }

  .footer-qr {
    text-align: left;
  }

  .footer-qr .qr-box {
    margin: 0 0 10px;
  }

  .footer-bottom p {
    font-size: 0.76rem;
    line-height: 1.8;
  }

  /* Back to top */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }

  .container {
    padding: 0 18px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.55rem;
  }

  .section-title h2 {
    font-size: 1.4rem;
  }

  .page-hero h1 {
    font-size: 1.7rem;
  }

  .business-card,
  .advantage-card,
  .scenario-body,
  .team-card,
  .service-card {
    padding: 28px 22px;
  }
}