/* ===== 敏雪科技 - 全站样式 ===== */

:root {
  --primary: #1B3A5C;
  --primary-dark: #142D47;
  --primary-light: #2A5080;
  --accent: #E8772B;
  --accent-light: #F4956F;
  --accent-dark: #C9621F;
  --secondary: #2A9D8F;
  --secondary-light: #3DB8A9;
  --bg-light: #F7F5F0;
  --bg-white: #FFFFFF;
  --bg-cream: #FBF9F5;
  --text-dark: #1A1A1A;
  --text-body: #3D3D3D;
  --text-muted: #6B6B6B;
  --text-light: #9A9A9A;
  --border: #E5E1D8;
  --border-light: #F0EDE5;
  --shadow-sm: 0 2px 8px rgba(27, 58, 92, 0.06);
  --shadow-md: 0 8px 24px rgba(27, 58, 92, 0.10);
  --shadow-lg: 0 16px 48px rgba(27, 58, 92, 0.14);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --container: 1200px;
  --nav-height: 72px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

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

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
}

.nav-logo-mark {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  font-weight: 800;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: var(--bg-cream);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 210px;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.25s ease;
  margin-top: 6px;
}

.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* 用伪元素填补间隙，防止hover丢失 */
.nav-item.has-dropdown > .nav-link::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 14px;
}

.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid white;
  filter: drop-shadow(0 -1px 1px rgba(0,0,0,0.04));
}

.nav-dropdown a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text-body);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

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

.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  margin-right: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
}

.nav-phone-icon {
  width: 32px;
  height: 32px;
  background: rgba(27, 58, 92, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.nav-phone-text small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  line-height: 1.2;
}

.nav-phone-text strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--accent);
  color: white !important;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}

.nav-cta:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 24px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand h3 {
  color: white;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-title {
  color: white;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

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

.footer-contact p {
  font-size: 14px;
  line-height: 2;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}

.footer-contact svg {
  flex-shrink: 0;
  margin-top: 5px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px rgba(232, 119, 43, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 119, 43, 0.35);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: white;
  color: var(--primary);
  border-color: white;
}

.btn-dark {
  background: var(--primary);
  color: white;
}

.btn-dark:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* ===== 通用区块 ===== */
.section {
  padding: 80px 0;
}

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

.section-label {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(232, 119, 43, 0.1);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.8;
}

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

.section-header .section-desc {
  margin: 0 auto;
}

/* ===== Hero 通用 ===== */
.page-hero {
  padding: calc(var(--nav-height) + 80px) 0 80px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 119, 43, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

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

.page-hero .breadcrumb {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}

.page-hero .breadcrumb a:hover {
  color: var(--accent-light);
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-hero p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 680px;
  line-height: 1.8;
}

/* ===== 首页 Hero 轮播 ===== */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.hero-slides {
  display: flex;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slide {
  min-width: 100%;
  position: relative;
  padding: 80px 0;
  min-height: 520px;
  display: flex;
  align-items: center;
  color: white;
}

.hero-slide-1 { background: linear-gradient(135deg, #1B3A5C 0%, #2A5080 100%); }
.hero-slide-2 { background: linear-gradient(135deg, #1F5F57 0%, #2A9D8F 100%); }
.hero-slide-3 { background: linear-gradient(135deg, #B85C1F 0%, #E8772B 100%); }
.hero-slide-4 { background: linear-gradient(135deg, #2C3E6B 0%, #4A6BA8 100%); }
.hero-slide-5 { background: linear-gradient(135deg, #5A3E8C 0%, #7B5FC4 100%); }

.hero-slide::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-slide::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-slide-content .section-label {
  background: rgba(255,255,255,0.18);
  color: #fff;
  backdrop-filter: blur(4px);
}

.hero-slide-content h1 {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
}

.hero-slide-content p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.88);
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-highlights {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: rgba(255,255,255,0.9);
}

.hero-highlight-icon {
  width: 24px;
  height: 24px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-slide-visual {
  position: relative;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-card {
  position: absolute;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  padding: 24px;
  color: var(--text-dark);
}

.hero-visual-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 28px;
}

.hero-visual-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.hero-visual-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 轮播控制 */
.hero-slider-nav {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  padding: 0;
}

.hero-dot.active {
  background: white;
  width: 32px;
  border-radius: 5px;
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.3s ease;
  border: none;
}

.hero-arrow:hover {
  background: rgba(255,255,255,0.3);
}

.hero-arrow.prev { left: 24px; }
.hero-arrow.next { right: 24px; }

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(232, 119, 43, 0.25) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(42, 157, 143, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  min-height: 520px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--accent-light);
}

.hero p {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 540px;
}

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

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== 服务卡片网格 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

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

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

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.25s ease;
}

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

/* 各服务图标颜色 */
.icon-web { background: rgba(27, 58, 92, 0.1); color: var(--primary); }
.icon-baidu { background: rgba(42, 157, 143, 0.12); color: var(--secondary); }
.icon-douyin { background: rgba(232, 119, 43, 0.12); color: var(--accent); }
.icon-video { background: rgba(27, 58, 92, 0.1); color: var(--primary-light); }
.icon-tel { background: rgba(42, 157, 143, 0.12); color: var(--secondary); }
.icon-ad { background: rgba(232, 119, 43, 0.12); color: var(--accent-dark); }
.icon-study { background: rgba(27, 58, 92, 0.1); color: var(--primary); }

/* ===== 为什么选择我们 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 40px 28px;
  background: white;
  border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-4px);
}

.feature-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.2;
  margin-bottom: 12px;
}

.feature-item h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 14px;
}

.feature-item p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== CTA 横幅 ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  color: white;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(232, 119, 43, 0.3) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-banner-content {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
}

.cta-banner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
}

.cta-banner .btn {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

/* ===== 服务落地页 - 服务优势 ===== */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.advantage-card {
  background: white;
  padding: 36px 30px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

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

.advantage-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== 服务流程 ===== */
.process-section {
  background: var(--bg-cream);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.process-step {
  background: white;
  padding: 32px 24px;
  border-radius: var(--radius-md);
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.process-step-num {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  margin: 0 auto 16px;
}

.process-step h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 客户价值 ===== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.value-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.value-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.value-check {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: rgba(42, 157, 143, 0.12);
  color: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-top: 2px;
}

.value-item h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.value-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 咨询表单 ===== */
.consult-section {
  background: var(--bg-cream);
}

.consult-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.consult-info h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.3;
}

.consult-info > p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}

.consult-contact {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.consult-contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.consult-contact-icon {
  width: 52px;
  height: 52px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.consult-contact-text span {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.consult-contact-text strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
}

.consult-form {
  background: white;
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.consult-form h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.consult-form .form-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  background: white;
  color: var(--text-dark);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 119, 43, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.consult-form .btn {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  margin-top: 8px;
}

/* ===== 公司介绍页 ===== */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-hero-text h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 24px;
  line-height: 1.3;
}

.about-hero-text p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 16px;
}

.about-hero-visual {
  height: 360px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.about-hero-visual::before {
  content: '';
  position: absolute;
  inset: 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
}

.about-hero-visual::after {
  content: '敏雪科技';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 42px;
  font-weight: 700;
  color: white;
  letter-spacing: 8px;
}

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

.team-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

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

.team-avatar {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  color: white;
  font-weight: 700;
}

.team-info {
  padding: 20px;
  text-align: center;
}

.team-info h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.team-info span {
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.philosophy-card {
  text-align: center;
  padding: 48px 32px;
  background: white;
  border-radius: var(--radius-md);
  position: relative;
}

.philosophy-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.philosophy-card h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.philosophy-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ===== 新闻资讯页 ===== */
.news-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.news-filter {
  padding: 8px 20px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-body);
  cursor: pointer;
  transition: all 0.25s ease;
}

.news-filter:hover,
.news-filter.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
  cursor: pointer;
}

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

.news-cover {
  height: 180px;
  position: relative;
  overflow: hidden;
}

.news-cover-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: rgba(255,255,255,0.3);
  font-weight: 700;
  letter-spacing: 4px;
}

.news-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: rgba(255,255,255,0.9);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
}

.news-body {
  padding: 24px;
}

.news-date {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-cover-1 { background: linear-gradient(135deg, #1B3A5C, #2A5080); }
.news-cover-2 { background: linear-gradient(135deg, #E8772B, #F4A261); }
.news-cover-3 { background: linear-gradient(135deg, #2A9D8F, #52B788); }
.news-cover-4 { background: linear-gradient(135deg, #5A3E8C, #7B5FC4); }
.news-cover-5 { background: linear-gradient(135deg, #B85C1F, #D4843F); }
.news-cover-6 { background: linear-gradient(135deg, #2C3E6B, #4A6BA8); }

/* ===== 成功案例页 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.case-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all 0.35s ease;
}

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

.case-cover {
  height: 220px;
  position: relative;
  overflow: hidden;
}

.case-cover-title {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  padding: 24px;
  text-align: center;
}

.case-cover-title h4 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.case-cover-title span {
  font-size: 14px;
  opacity: 0.85;
}

.case-body {
  padding: 28px;
}

.case-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.case-tag {
  padding: 4px 12px;
  background: var(--bg-cream);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  border-radius: 100px;
}

.case-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 14px;
  line-height: 1.4;
}

.case-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.case-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
}

.case-result-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.case-result-label {
  font-size: 12px;
  color: var(--text-muted);
}

.case-cover-1 { background: linear-gradient(135deg, #1B3A5C, #2A5080); }
.case-cover-2 { background: linear-gradient(135deg, #E8772B, #C9621F); }
.case-cover-3 { background: linear-gradient(135deg, #2A9D8F, #1F7A6F); }
.case-cover-4 { background: linear-gradient(135deg, #5A3E8C, #3D2A66); }
.case-cover-5 { background: linear-gradient(135deg, #B85C1F, #8B4513); }
.case-cover-6 { background: linear-gradient(135deg, #2C3E6B, #1A2747); }

/* ===== 联系我们页 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.8;
}

.contact-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.contact-item:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.contact-item-text h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.contact-item-text p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

.contact-map {
  height: 280px;
  background: linear-gradient(135deg, #e8f0e8 0%, #f0f5f0 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border: 1px solid var(--border-light);
  margin-top: 24px;
}

.contact-map-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.contact-map p {
  font-size: 14px;
  color: var(--text-muted);
}

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

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-slide-visual {
    display: none;
  }

  .hero-slide {
    min-height: 440px;
    padding: 60px 0;
  }

  .hero-slide-content h1 {
    font-size: 32px;
  }

  .news-list,
  .cases-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .about-hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-link {
    padding: 14px 16px;
    font-size: 16px;
  }

  .nav-dropdown {
    position: static;
    transform: none !important;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    border: none;
    padding: 0 0 8px 16px;
    display: none;
  }

  .nav-item.open .nav-dropdown {
    display: block;
  }

  .nav-cta {
    margin-top: 12px;
    text-align: center;
    padding: 14px 20px;
  }

  .mobile-toggle {
    display: flex;
  }

  .mobile-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .mobile-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .hero {
    padding: calc(var(--nav-height) + 40px) 0 60px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-stats {
    gap: 24px;
    margin-top: 32px;
    padding-top: 24px;
  }

  .hero-stat-num {
    font-size: 28px;
  }

  .hero-arrow {
    width: 36px;
    height: 36px;
  }

  .hero-arrow.prev { left: 8px; }
  .hero-arrow.next { right: 8px; }

  .nav-phone {
    display: none;
  }

  .page-hero {
    padding: calc(var(--nav-height) + 48px) 0 48px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero p {
    font-size: 16px;
  }

  .services-grid,
  .features-grid,
  .advantage-grid,
  .philosophy-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

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

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .cta-banner {
    padding: 40px 32px;
    flex-direction: column;
    text-align: center;
  }

  .cta-banner h2 {
    font-size: 22px;
  }

  .consult-wrap,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .consult-form {
    padding: 28px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

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