/* ===== 酷睿® 品牌网站 全局样式 ===== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  --color-bg: #0A1628;
  --color-bg-alt: #0F2847;
  --color-bg-card: #112B4A;
  --color-accent: #00D4FF;
  --color-accent-dim: rgba(0, 212, 255, 0.15);
  --color-accent-glow: rgba(0, 212, 255, 0.4);
  --color-blue: #3B82F6;
  --color-text: #E2E8F0;
  --color-text-muted: #94A3B8;
  --color-border: rgba(0, 212, 255, 0.12);
  --color-white: #FFFFFF;
  --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 16px;
  --radius-sm: 8px;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 背景网格纹理 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

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

a:hover {
  color: var(--color-white);
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: 1px;
}

.navbar-logo .logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-blue));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: var(--color-bg);
}

.navbar-logo .reg {
  font-size: 11px;
  vertical-align: super;
  color: var(--color-accent);
  margin-left: 2px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.navbar-links a {
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--color-white);
}

.navbar-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.navbar-cta {
  background: var(--color-accent);
  color: var(--color-bg) !important;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  transition: var(--transition);
}

.navbar-cta:hover {
  background: var(--color-white);
  box-shadow: 0 0 30px var(--color-accent-glow);
  transform: translateY(-1px);
}

/* ===== 通用容器 ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

section {
  position: relative;
  z-index: 1;
}

/* ===== Hero 区域 ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  pointer-events: none;
}

.hero-bg-orb.orb1 {
  width: 500px;
  height: 500px;
  background: var(--color-accent);
  top: -100px;
  right: -100px;
}

.hero-bg-orb.orb2 {
  width: 400px;
  height: 400px;
  background: var(--color-blue);
  bottom: -50px;
  left: -50px;
  opacity: 0.2;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-border);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease forwards;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero h1 {
  font-size: 64px;
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-white);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s forwards;
  opacity: 0;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-accent), var(--color-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 19px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 580px;
  animation: fadeInUp 0.6s ease 0.2s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  gap: 16px;
  animation: fadeInUp 0.6s ease 0.3s forwards;
  opacity: 0;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-white);
  box-shadow: 0 0 40px var(--color-accent-glow);
  transform: translateY(-2px);
  color: var(--color-bg);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 15px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-white);
  background: var(--color-accent-dim);
}

/* ===== 统计数据条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-top: 80px;
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 48px;
  width: 1px;
  background: var(--color-border);
}

.stat-number {
  font-size: 40px;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* ===== 通用 Section ===== */
.section-pad {
  padding: 100px 0;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: 42px;
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 56px;
}

/* ===== 业务卡片网格 ===== */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.biz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.biz-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 212, 255, 0.1);
}

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

.biz-card-icon {
  width: 56px;
  height: 56px;
  background: var(--color-accent-dim);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 24px;
}

.biz-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.biz-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== 优势列表 ===== */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.advantage-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.advantage-num {
  font-size: 48px;
  font-weight: 900;
  color: var(--color-accent);
  opacity: 0.3;
  line-height: 1;
  min-width: 60px;
}

.advantage-content h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.advantage-content p {
  font-size: 15px;
  color: var(--color-text-muted);
}

/* ===== 商标信息区块 ===== */
.trademark-box {
  background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg-alt));
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.trademark-info h3 {
  font-size: 28px;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 16px;
}

.trademark-info p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.trademark-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.trademark-meta-item {
  display: flex;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.trademark-meta-label {
  color: var(--color-text-muted);
  font-size: 14px;
}

.trademark-meta-value {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
}

/* ===== 页面 Hero (子页面) ===== */
.page-hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 18px;
  color: var(--color-text-muted);
  max-width: 600px;
}

/* ===== 关于我们 - 时间线 ===== */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 48px;
}

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

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 4px;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--color-accent-glow);
}

.timeline-item h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.timeline-item .timeline-date {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-item p {
  font-size: 15px;
  color: var(--color-text-muted);
}

/* ===== 愿景使命 ===== */
.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.vision-card {
  text-align: center;
  padding: 48px 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.vision-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.vision-card-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: var(--color-accent-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.vision-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.vision-card p {
  font-size: 15px;
  color: var(--color-text-muted);
}

/* ===== 业务详情列表 ===== */
.biz-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}

.biz-detail:nth-child(even) .biz-detail-text {
  order: 2;
}

.biz-detail-text h3 {
  font-size: 28px;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 16px;
}

.biz-detail-text p {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.biz-detail-features {
  list-style: none;
}

.biz-detail-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.biz-detail-features li::before {
  content: '▸';
  color: var(--color-accent);
  font-size: 18px;
}

.biz-detail-visual {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.biz-detail-visual .visual-icon {
  font-size: 72px;
  margin-bottom: 24px;
}

.biz-detail-visual .visual-label {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
}

.biz-detail-visual .visual-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* ===== 联系页面 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}

.contact-info-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 24px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item:last-child {
  border-bottom: none;
}

.contact-info-item .icon {
  font-size: 22px;
  min-width: 32px;
}

.contact-info-item .label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-info-item .value {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
}

.contact-form-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}

.contact-form-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 24px;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--color-text);
  font-size: 15px;
  font-family: var(--font-main);
  transition: var(--transition);
}

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

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

/* ===== 页脚 ===== */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
  position: relative;
  z-index: 1;
}

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

.footer-brand .navbar-logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: 320px;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul a {
  font-size: 14px;
  color: var(--color-text-muted);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-bottom .disclaimer {
  font-size: 12px;
  color: var(--color-text-muted);
  opacity: 0.7;
  max-width: 500px;
}

.footer-bottom .icp-info {
  font-size: 12px;
  color: var(--color-text-muted);
  opacity: 0.7;
  margin-top: 8px;
}

.footer-bottom .icp-info a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-bottom .icp-info a:hover {
  text-decoration: underline;
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* 滚动渐入 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .navbar-links {
    display: none;
  }

  .hero h1 {
    font-size: 40px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 0;
  }

  .stat-item:nth-child(2)::after {
    display: none;
  }

  .biz-grid,
  .vision-grid {
    grid-template-columns: 1fr;
  }

  .advantage-grid,
  .trademark-box,
  .biz-detail,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .biz-detail:nth-child(even) .biz-detail-text {
    order: 0;
  }

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

  .section-title {
    font-size: 32px;
  }

  .page-hero h1 {
    font-size: 36px;
  }
}