/* ============================================
   长沙奇巧匠人软件有限公司 - 企业官网
   设计风格：简约大气
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  /* 主色调 - 深海蓝 */
  --primary: #0a3d62;
  --primary-light: #1a5a8a;
  --primary-dark: #062a44;
  /* 点缀色 - 科技蓝 */
  --accent: #2d7ff9;
  --accent-light: #5ba3fa;
  /* 中性色 */
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-soft: #64748b;
  --text-mute: #94a3b8;
  --border: #e2e8f0;
  --white: #ffffff;
  /* 功能色 */
  --gradient: linear-gradient(135deg, #0a3d62 0%, #2d7ff9 100%);
  --gradient-soft: linear-gradient(135deg, #f4f7fb 0%, #e8f0fa 100%);
  --shadow-sm: 0 2px 8px rgba(15, 42, 68, 0.06);
  --shadow-md: 0 8px 30px rgba(15, 42, 68, 0.10);
  --shadow-lg: 0 20px 60px rgba(15, 42, 68, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  /* 布局 */
  --container: 1200px;
  --nav-h: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

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

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

.section {
  padding: 96px 0;
}

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

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

.section-title h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1px;
}

.section-title .divider {
  width: 56px;
  height: 4px;
  background: var(--gradient);
  border-radius: 2px;
  margin: 16px auto 0;
}

.section-title p {
  margin-top: 16px;
  color: var(--text-soft);
  font-size: 1.05rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary);
}

.nav-brand .logo-mark {
  width: 40px;
  height: 40px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  flex-shrink: 0;
}

.nav-brand .logo-img {
  height: 40px;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.nav-brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-brand .brand-text .en {
  font-size: 0.72rem;
  color: var(--text-mute);
  font-weight: 400;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text);
  transition: all 0.25s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--bg-soft);
}

.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-cta {
  background: var(--gradient);
  color: #fff !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: var(--gradient) !important;
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}

.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ---------- 首页 Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient);
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(45, 127, 249, 0.3) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(91, 163, 250, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
  color: #fff;
}

.hero-content .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.85rem;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-content .hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.hero-content .hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 540px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: #fff;
  color: var(--primary);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(255, 255, 255, 0.25);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.btn-dark {
  background: var(--gradient);
  color: #fff;
}

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

.hero-visual {
  flex: 0 0 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card-stack {
  position: relative;
  width: 360px;
  height: 420px;
}

.hero-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}

.hero-card-1 {
  top: 0;
  left: 20px;
  width: 200px;
  height: 120px;
  display: flex;
  align-items: center;
  gap: 14px;
  animation: float 5s ease-in-out infinite;
}

.hero-card-2 {
  top: 80px;
  right: 0;
  width: 220px;
  height: 140px;
  animation: float 5s ease-in-out infinite 1s;
}

.hero-card-3 {
  bottom: 0;
  left: 40px;
  width: 280px;
  height: 160px;
  animation: float 5s ease-in-out infinite 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.hero-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.hero-card h4 {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 4px;
}

.hero-card p {
  font-size: 0.8rem;
  color: var(--text-soft);
}

.hero-card .mini-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 50px;
  margin-top: 10px;
}

.hero-card .mini-chart .bar {
  flex: 1;
  background: var(--gradient);
  border-radius: 3px;
  opacity: 0.8;
}

.hero-card .progress-row {
  margin-top: 12px;
}

.hero-card .progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-soft);
  margin-bottom: 6px;
}

.hero-card .progress-bar {
  height: 6px;
  background: var(--bg-soft);
  border-radius: 3px;
  overflow: hidden;
}

.hero-card .progress-bar .fill {
  height: 100%;
  background: var(--gradient);
  border-radius: 3px;
}

/* ---------- 数据统计条 ---------- */
.stats-bar {
  background: var(--primary);
  padding: 64px 0;
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  color: #fff;
}

.stat-item .stat-num {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .stat-label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.75);
}

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

.service-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  text-align: center;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.service-card .icon-box {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 16px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  transition: all 0.3s ease;
}

.service-card:hover .icon-box {
  background: var(--gradient);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ---------- 优势/特点列表 ---------- */
.feature-block {
  display: flex;
  align-items: center;
  gap: 60px;
}

.feature-block.reverse {
  flex-direction: row-reverse;
}

.feature-text {
  flex: 1;
}

.feature-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.feature-text .lead {
  font-size: 1.05rem;
  color: var(--text-soft);
  margin-bottom: 28px;
}

.feature-list {
  display: grid;
  gap: 20px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.feature-list .check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-list .item-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.feature-list .item-content p {
  font-size: 0.88rem;
  color: var(--text-soft);
}

.feature-visual {
  flex: 0 0 420px;
}

.feature-visual .visual-box {
  background: var(--gradient-soft);
  border-radius: var(--radius-lg);
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.visual-code {
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--primary);
  background: rgba(255, 255, 255, 0.8);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  width: 90%;
}

.visual-code .code-line {
  white-space: pre;
}

.visual-code .kw { color: #2d7ff9; }
.visual-code .str { color: #16a34a; }
.visual-code .cm { color: #94a3b8; }

/* ---------- 页面内 Banner（非首页） ---------- */
.page-banner {
  background: var(--gradient);
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.page-banner h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}

.page-banner .breadcrumb {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  position: relative;
  z-index: 2;
}

.page-banner .breadcrumb a:hover {
  color: #fff;
}

/* ---------- 关于我们 ---------- */
.about-intro {
  display: flex;
  align-items: center;
  gap: 60px;
}

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

.about-intro .about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.about-intro .about-text p {
  color: var(--text-soft);
  margin-bottom: 16px;
  font-size: 1.02rem;
}

.about-intro .about-visual {
  flex: 0 0 440px;
}

.about-visual .about-card {
  background: var(--gradient);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.about-visual .about-card h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.about-visual .about-card .mission-text {
  font-size: 1.05rem;
  line-height: 1.8;
  opacity: 0.92;
  margin-bottom: 24px;
}

.about-visual .about-card .value-row {
  display: flex;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 24px;
}

.about-visual .about-card .value-item .v-num {
  font-size: 2rem;
  font-weight: 800;
}

.about-visual .about-card .value-item .v-label {
  font-size: 0.85rem;
  opacity: 0.8;
}

/* 发展历程时间线 */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-item .year {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.timeline-item .event {
  color: var(--text-soft);
  font-size: 0.95rem;
}

/* 企业文化 */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.culture-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 40px 28px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.culture-card .culture-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.culture-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.culture-card p {
  color: var(--text-soft);
  font-size: 0.92rem;
}

/* 团队 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  text-align: center;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 32px 20px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.team-card .avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--gradient);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: #fff;
  font-weight: 700;
}

.team-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--text-soft);
}

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

.service-detail-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 36px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  display: flex;
  gap: 24px;
}

.service-detail-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.service-detail-card .sd-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.service-detail-card .sd-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-detail-card .sd-body p {
  color: var(--text-soft);
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.service-detail-card .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-detail-card .tag {
  padding: 4px 12px;
  background: var(--bg-soft);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--primary);
}

/* 技术栈 */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.tech-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.tech-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-4px);
}

.tech-item .tech-icon {
  font-size: 1.4rem;
}

.tech-item .tech-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

/* 流程步骤 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process-step {
  text-align: center;
  position: relative;
  counter-increment: step;
}

.process-step .step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
  position: relative;
  z-index: 2;
}

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 32px;
  left: calc(50% + 36px);
  right: -50%;
  height: 2px;
  background: var(--border);
  z-index: 1;
}

.process-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--text-soft);
  padding: 0 8px;
}

/* ---------- 联系我们 ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: var(--gradient);
  border-radius: var(--radius-lg);
  padding: 44px;
  color: #fff;
}

.contact-info-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.contact-info-card .sub {
  opacity: 0.8;
  margin-bottom: 36px;
}

.contact-info-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

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

.contact-info-item .ci-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-info-item .ci-label {
  font-size: 0.82rem;
  opacity: 0.7;
  margin-bottom: 2px;
}

.contact-info-item .ci-value {
  font-size: 1.02rem;
  font-weight: 600;
}

.contact-form-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 44px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.contact-form-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.contact-form-card .sub {
  color: var(--text-soft);
  margin-bottom: 28px;
  font-size: 0.92rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-soft);
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(45, 127, 249, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
}

/* 地图/地址块 */
.map-block {
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: var(--text-soft);
  border: 1px solid var(--border);
}

.map-block .map-icon {
  font-size: 3rem;
  color: var(--accent);
}

.map-block .map-text {
  font-size: 1.05rem;
  color: var(--text);
  font-weight: 600;
}

.map-block .map-sub {
  font-size: 0.9rem;
}

/* ---------- CTA 区域 ---------- */
.cta-section {
  background: var(--gradient);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  font-size: 1.05rem;
  position: relative;
  z-index: 2;
}

.cta-section .btn {
  position: relative;
  z-index: 2;
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-brand {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .nav-brand .en {
  color: rgba(255, 255, 255, 0.5);
}

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

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 18px;
  font-weight: 600;
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col ul a {
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}

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

/* ---------- 滚动动画 ---------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  border: none;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
  box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
  transform: translateY(-4px);
}

/* ============================================
   响应式适配
   ============================================ */
@media (max-width: 1024px) {
  .hero-content h1 { font-size: 2.8rem; }
  .hero-visual { display: none; }
  .feature-block,
  .feature-block.reverse { flex-direction: column; gap: 40px; }
  .feature-visual { flex: none; width: 100%; }
  .about-intro { flex-direction: column; }
  .about-intro .about-visual { flex: none; width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { width: 100%; padding: 12px 16px; }
  .nav-toggle { display: flex; }

  .section { padding: 64px 0; }
  .section-title h2 { font-size: 1.7rem; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero-content .hero-subtitle { font-size: 1.05rem; }

  .stats-bar .container { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .stat-item .stat-num { font-size: 2.2rem; }

  .service-grid { grid-template-columns: 1fr; }
  .service-detail-grid { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step:not(:last-child)::after { display: none; }

  .contact-layout { grid-template-columns: 1fr; }
  .contact-info-list { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .page-banner { padding: 130px 0 56px; }
  .page-banner h1 { font-size: 2rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.8rem; }
  .section-title h2 { font-size: 1.4rem; }
  .team-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .stats-bar .container { grid-template-columns: 1fr; }
}