/* ========================================
   博融人力官网 - 全局样式表
   ======================================== */

/* CSS变量 */
:root {
  --primary: #3A54E8;
  --secondary: #48D060;
  --gradient: linear-gradient(135deg, #3A54E8, #48D060);
  --dark: #1A2033;
  --gray: #66667A;
  --light-bg: #F5F7FC;
  --white: #ffffff;
  --shadow: 0 8px 32px rgba(58, 84, 232, 0.12);
  --shadow-hover: 0 16px 48px rgba(58, 84, 232, 0.2);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: var(--dark);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray);
  text-align: center;
  margin-bottom: 48px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--primary);
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-menu a {
  color: rgba(255,255,255,0.85);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--white);
  background: rgba(255,255,255,0.15);
}

.nav-cta {
  background: var(--gradient);
  color: var(--white);
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 16px rgba(58,84,232,0.3);
  transition: var(--transition);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(58,84,232,0.4);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

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

.footer-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.5fr;
  gap: 40px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.footer-brand p {
  line-height: 1.8;
  font-size: 0.95rem;
}

.footer-links h4,
.footer-contact h4 {
  color: var(--white);
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--secondary);
}

.footer-contact p {
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ========================================
   悬浮咨询按钮
   ======================================== */
.float-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  background: var(--gradient);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 8px 32px rgba(58,84,232,0.35);
  transition: var(--transition);
  animation: floatPulse 2s ease-in-out infinite;
}

.float-cta:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 40px rgba(58,84,232,0.5);
}

@keyframes floatPulse {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ========================================
   滚动渐显动画
   ======================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========================================
   首页 - Banner
   ======================================== */
.banner {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 24px 140px;
  overflow: hidden;
  background: var(--primary);
}

.banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(72, 208, 96, 0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(72, 208, 96, 0.2) 0%, transparent 40%),
    radial-gradient(ellipse at 60% 80%, rgba(72, 208, 96, 0.15) 0%, transparent 45%);
  animation: fluidMove 8s ease-in-out infinite;
}

.banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

@keyframes fluidMove {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.banner h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.3;
  text-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.banner-subtitle {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 16px;
}

.banner-values {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 36px;
  letter-spacing: 2px;
}

.banner-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(58,84,232,0.35);
  transition: var(--transition);
  display: inline-block;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(58,84,232,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  padding: 14px 36px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid rgba(255,255,255,0.5);
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  transform: translateY(-3px);
}

.banner-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px;
  z-index: 2;
}

.banner-stats-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 24px;
}

.stat-item {
  text-align: center;
  color: var(--white);
}

.stat-item strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-item span {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ========================================
   首页 - 品牌实力数据
   ======================================== */
.data-section {
  padding: 100px 24px;
  background: var(--light-bg);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.data-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.data-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.data-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 12px;
}

.data-label {
  font-size: 1rem;
  color: var(--gray);
}

/* ========================================
   首页 - 四大核心服务
   ======================================== */
.services-section {
  padding: 100px 24px;
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto;
}

.service-card {
  background: var(--white);
  border: 1px solid rgba(58,84,232,0.08);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--gradient);
  transition: height 0.4s ease;
}

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

.service-card:hover::before {
  height: 100%;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--white);
}

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

.service-card p {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.service-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-link:hover {
  gap: 10px;
}

/* ========================================
   首页 - 智拓云平台
   ======================================== */
.platform-section {
  padding: 100px 24px;
  background: var(--light-bg);
}

.platform-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.platform-mockup {
  background: var(--dark);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-hover);
  position: relative;
  overflow: hidden;
}

.platform-mockup::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(72,208,96,0.08) 0%, transparent 60%);
  animation: mockupGlow 6s ease-in-out infinite;
}

@keyframes mockupGlow {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(180deg); }
}

.mockup-header {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.mockup-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.mockup-dot:nth-child(1) { background: #ff5f57; }
.mockup-dot:nth-child(2) { background: #febc2e; }
.mockup-dot:nth-child(3) { background: #28c840; }

.mockup-body {
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  padding: 20px;
  position: relative;
  z-index: 1;
}

.mockup-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.mockup-row:last-child {
  border-bottom: none;
}

.mockup-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
}

.mockup-info {
  flex: 1;
}

.mockup-line {
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  margin-bottom: 6px;
}

.mockup-line.short {
  width: 60%;
}

.mockup-badge {
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--white);
  background: rgba(72,208,96,0.2);
}

.platform-text h2 {
  font-size: 2.25rem;
  margin-bottom: 20px;
}

.platform-text h2 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.platform-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 28px 0;
}

.platform-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.feature-check {
  width: 24px;
  height: 24px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 0.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.platform-feature p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ========================================
   首页 - 客户LOGO墙
   ======================================== */
.clients-section {
  padding: 80px 24px;
  background: var(--light-bg);
  overflow: hidden;
}

.logo-track-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.logo-track {
  display: flex;
  gap: 60px;
  animation: logoScroll 25s linear infinite;
  width: max-content;
}

.logo-track:hover {
  animation-play-state: paused;
}

@keyframes logoScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.client-logo {
  flex-shrink: 0;
  width: 120px;
  height: 60px;
  background: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gray);
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: var(--transition);
}

.client-logo:hover {
  color: var(--primary);
  transform: scale(1.05);
}

/* ========================================
   首页 - 底部咨询转化
   ======================================== */
.cta-section {
  padding: 100px 24px;
  background: linear-gradient(135deg, #1e2a5a 0%, #2d3d7a 50%, #1e2a5a 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(72,208,96,0.1) 0%, transparent 70%);
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: 2.5rem;
  color: var(--white);
  margin-bottom: 32px;
}

.cta-info {
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
}

.cta-info p {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

/* ========================================
   关于博融 - 面包屑
   ======================================== */
.breadcrumb {
  padding: 100px 24px 32px;
  background: var(--light-bg);
  border-bottom: 1px solid rgba(58,84,232,0.06);
}

.breadcrumb-inner {
  max-width: 1280px;
  margin: 0 auto;
  font-size: 0.9rem;
  color: var(--gray);
}

.breadcrumb a {
  color: var(--primary);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb span {
  margin: 0 8px;
  color: var(--gray);
}

/* ========================================
   关于博融 - 品牌简介
   ======================================== */
.about-intro {
  padding: 80px 24px;
  background: var(--white);
}

.about-intro-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

.about-intro h1 {
  font-size: 2.75rem;
  margin-bottom: 40px;
}

.about-intro p {
  font-size: 1.1rem;
  color: var(--gray);
  margin-bottom: 20px;
  line-height: 2;
  text-indent: 2em;
  text-align: justify;
}

.about-mission {
  margin-top: 48px;
  padding: 36px;
  background: var(--light-bg);
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
  text-align: left;
}

.about-mission h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--dark);
}

.values-list {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.value-tag {
  padding: 8px 20px;
  background: var(--white);
  border-radius: 50px;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid rgba(58,84,232,0.15);
}

/* ========================================
   关于博融 - 发展历程时间轴
   ======================================== */
.timeline-section {
  padding: 100px 24px;
  background: var(--light-bg);
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: 50%;
  position: relative;
  margin-bottom: 48px;
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: 50%;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 16px;
  height: 16px;
  background: var(--gradient);
  border-radius: 50%;
  transform: translateX(-50%);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px rgba(58,84,232,0.2);
  z-index: 2;
}

.timeline-content {
  background: var(--white);
  padding: 24px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 340px;
  margin-right: 32px;
  transition: var(--transition);
}

.timeline-item:nth-child(even) .timeline-content {
  margin-right: 0;
  margin-left: 32px;
}

.timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.timeline-content p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ========================================
   关于博融 - 全球服务网络
   ======================================== */
.network-section {
  padding: 100px 24px;
  background: var(--white);
}

.network-content {
  max-width: 1100px;
  margin: 0 auto;
}

.network-map {
  background: var(--light-bg);
  border-radius: var(--radius);
  padding: 48px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.network-map::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(58,84,232,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.network-region {
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.network-region:last-child {
  margin-bottom: 0;
}

.network-region h4 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.network-region h4::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--gradient);
  border-radius: 50%;
}

.network-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.city-tag {
  padding: 6px 14px;
  background: var(--white);
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--gray);
  border: 1px solid rgba(58,84,232,0.08);
  transition: var(--transition);
}

.city-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.network-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.network-stat {
  background: var(--light-bg);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}

.network-stat:hover {
  background: var(--white);
  box-shadow: var(--shadow);
}

.network-stat strong {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.network-stat span {
  font-size: 0.85rem;
  color: var(--gray);
}

/* ========================================
   关于博融 - 集团产业生态
   ======================================== */
.ecosystem-section {
  padding: 100px 24px;
  background: var(--light-bg);
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.eco-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid transparent;
}

.eco-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-top-color: var(--primary);
}

.eco-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--white);
}

.eco-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.eco-card p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.7;
}

/* ========================================
   响应式适配
   ======================================== */
@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 56px;
  }

  .timeline-dot {
    left: 20px;
    transform: translateX(-50%);
  }

  .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: 0;
    max-width: 100%;
  }

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

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

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    padding: 16px 24px;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    padding: 12px 16px;
    width: 100%;
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .banner h1 {
    font-size: 2rem;
  }

  .banner-subtitle {
    font-size: 1rem;
  }

  .banner-values {
    font-size: 0.85rem;
  }

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

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

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

  .section-title {
    font-size: 1.75rem;
  }

  .float-cta {
    padding: 12px 20px;
    font-size: 0.9rem;
    bottom: 20px;
    right: 20px;
  }

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

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

  .cta-section h2 {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .data-grid {
    grid-template-columns: 1fr;
  }

  .banner-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
    max-width: 280px;
  }

  .network-stats {
    grid-template-columns: 1fr;
  }
}