/* ============================================================
   融易智创官网 — 未来科技风格
   主色调：深空黑 + 霓虹青蓝 + 电光紫
   ============================================================ */

:root {
  --bg-0: #05070f;
  --bg-1: #0a0e1a;
  --bg-2: #0f1424;
  --surface: rgba(15, 20, 40, 0.6);
  --surface-solid: #0f1424;
  --border: rgba(0, 240, 255, 0.15);
  --border-strong: rgba(0, 240, 255, 0.35);

  --cyan: #00f0ff;
  --blue: #0066ff;
  --purple: #7c3aed;
  --magenta: #d946ef;

  --accent: var(--cyan);
  --accent-2: var(--blue);
  --accent-3: var(--purple);

  --text-1: #e8f4ff;
  --text-2: #9fb3cc;
  --text-3: #5d6e85;

  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.5), 0 0 40px rgba(0, 240, 255, 0.2);
  --glow-blue: 0 0 20px rgba(0, 102, 255, 0.5), 0 0 40px rgba(0, 102, 255, 0.2);

  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  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;
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 背景：星空 + 网格 + 光晕 */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: radial-gradient(ellipse at 20% 10%, #0c1430 0%, #05070f 55%);
}

.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image: linear-gradient(rgba(0, 240, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  z-index: -1;
  pointer-events: none;
  animation: float 18s ease-in-out infinite;
}
.bg-glow.g1 {
  width: 500px;
  height: 500px;
  background: var(--blue);
  top: -100px;
  left: -100px;
}
.bg-glow.g2 {
  width: 600px;
  height: 600px;
  background: var(--purple);
  top: 40%;
  right: -150px;
  animation-delay: -6s;
}
.bg-glow.g3 {
  width: 400px;
  height: 400px;
  background: var(--cyan);
  bottom: -100px;
  left: 30%;
  animation-delay: -12s;
  opacity: 0.2;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-30px, 40px) scale(0.95); }
}

/* 通用容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 导航栏 ============ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: var(--transition);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav.scrolled {
  background: rgba(5, 7, 15, 0.75);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-1);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 1px;
}
.logo-img {
  height: 52px;
  width: auto;
  filter: invert(1);
  opacity: 0.95;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #05070f;
  font-weight: 900;
  font-size: 18px;
  box-shadow: var(--glow-cyan);
}
.logo-text span {
  color: var(--cyan);
}
.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  color: var(--text-2);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--cyan);
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  box-shadow: var(--glow-cyan);
}
.nav-cta {
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #05070f;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5);
}

/* 移动端菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============ 首屏 Hero ============ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-items: center;
  text-align: center;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  font-size: 13px;
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.05);
  margin-bottom: 28px;
  animation: fadeUp 0.8s ease both;
}
.hero-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 2s infinite;
}
.hero h1 {
  font-size: clamp(48px, 8vw, 92px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 32px;
  animation: fadeUp 0.8s ease 0.1s both;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--cyan) 0%, var(--blue) 50%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero h1 .outline {
  -webkit-text-stroke: 1.5px var(--cyan);
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 22px;
  color: var(--text-2);
  max-width: 760px;
  margin: 0 auto 44px;
  line-height: 1.8;
  animation: fadeUp 0.8s ease 0.2s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp 0.8s ease 0.3s both;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #05070f;
  box-shadow: 0 6px 24px rgba(0, 240, 255, 0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.5);
}
.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.05);
}

/* 首屏右侧 — 机器人发光卡片 */
.hero-visual {
  position: relative;
  animation: fadeIn 1s ease 0.4s both;
}
.hero-card {
  position: relative;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  padding: 30px;
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 24px;
  padding: 1px;
  background: linear-gradient(135deg, var(--cyan), transparent 40%, var(--purple));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.hero-card img {
  width: 100%;
  border-radius: 16px;
  display: block;
  filter: drop-shadow(0 20px 40px rgba(0, 102, 255, 0.4));
}
.hero-card-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-strong);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  color: var(--cyan);
  backdrop-filter: blur(8px);
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.stat {
  text-align: center;
  padding: 14px 8px;
  background: rgba(0, 240, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.stat strong {
  display: block;
  font-size: 22px;
  color: var(--cyan);
  font-weight: 800;
}
.stat small {
  font-size: 12px;
  color: var(--text-3);
}

/* ============ 通用区块 ============ */
section {
  padding: 100px 0;
  position: relative;
}
.section-head {
  text-align: center;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 16px;
}
.section-tag::before,
.section-tag::after {
  content: "";
  width: 30px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}
.section-tag::after {
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title .grad {
  background: linear-gradient(120deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-sub {
  color: var(--text-2);
  font-size: 16px;
  max-width: 640px;
  margin: 0 auto;
}

/* ============ 关于我们 ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.about-text p {
  color: var(--text-2);
  margin-bottom: 20px;
  font-size: 16px;
}
.about-text p strong {
  color: var(--cyan);
  font-weight: 600;
}
.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.highlight {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: var(--transition);
}
.highlight:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.1);
}
.highlight-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(124, 58, 237, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--cyan);
  font-size: 20px;
}
.highlight h4 {
  font-size: 15px;
  margin-bottom: 4px;
}
.highlight p {
  font-size: 13px;
  color: var(--text-3);
  margin: 0;
}

/* 关于右侧 — 数据面板 */
.about-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}
.about-panel::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(0, 240, 255, 0.08), transparent 30%);
  animation: spin 8s linear infinite;
}
.about-panel-inner {
  position: relative;
  z-index: 1;
}
.panel-title {
  font-size: 14px;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}
.panel-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
.panel-stat {
  padding: 16px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  border: 1px solid var(--border);
}
.panel-stat .num {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}
.panel-stat .label {
  font-size: 13px;
  color: var(--text-3);
}
.panel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.panel-tags span {
  padding: 6px 14px;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-2);
}

/* ============ 核心业务 ============ */
.business-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.biz-card {
  position: relative;
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
  overflow: hidden;
}
.biz-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: var(--transition);
}
.biz-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 16px 40px rgba(0, 102, 255, 0.15);
}
.biz-card:hover::before {
  opacity: 1;
}
.biz-num {
  font-size: 13px;
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 14px;
  opacity: 0.7;
}
.biz-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(124, 58, 237, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 18px;
  color: var(--cyan);
}
.biz-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--text-1);
}
.biz-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

/* 核心案例入口 */
.biz-case {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.biz-case-label {
  font-size: 13px;
  color: var(--text-3);
  font-weight: 600;
  white-space: nowrap;
}
.biz-case-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.biz-case-btn:hover {
  background: rgba(0, 240, 255, 0.15);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
}
.biz-case-empty {
  font-size: 13px;
  color: var(--text-3);
  padding: 8px 16px;
  border: 1px dashed var(--border);
  border-radius: 100px;
}

/* 视频弹窗 */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.video-modal.open {
  display: flex;
}
.video-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
}
.video-modal-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  width: 90%;
}
.video-modal-content video {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 60px rgba(0, 240, 255, 0.2);
}
.video-modal-close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-strong);
  color: var(--cyan);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.video-modal-close:hover {
  background: rgba(0, 240, 255, 0.2);
  transform: rotate(90deg);
}

/* ============ 产品中心 ============ */
.products {
  background: linear-gradient(180deg, transparent, rgba(0, 240, 255, 0.02), transparent);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* 产品亮点画廊 */
.product-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.pg-item {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 3/4;
  transition: var(--transition);
}
.pg-item:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.pg-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s;
}
.pg-item:hover img {
  transform: scale(1.08);
}
.pg-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.85));
}
.pg-label span {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 4px;
}
.pg-label {
  font-size: 13px;
  color: var(--text-3);
}
.product-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  backdrop-filter: blur(20px);
  transition: var(--transition);
}
.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-strong);
  box-shadow: 0 20px 60px rgba(0, 102, 255, 0.2);
}
.product-img {
  position: relative;
  height: 320px;
  overflow: hidden;
  background: radial-gradient(circle at 50% 60%, rgba(0, 102, 255, 0.15), transparent 70%);
}
.product-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
  transition: var(--transition);
}
.product-card:hover .product-img img {
  transform: scale(1.05);
}
.product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #05070f;
}
.product-tag.purple {
  background: linear-gradient(135deg, var(--purple), var(--magenta));
}
.product-body {
  padding: 28px;
}
.product-type {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.product-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
}
.product-card h3 .model {
  color: var(--cyan);
}
.product-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 18px 0;
}
.spec-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
}
.spec-item svg {
  color: var(--cyan);
  flex-shrink: 0;
}
.product-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
}
.product-price .amount {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.product-price .unit {
  font-size: 13px;
  color: var(--text-3);
}
.product-footer {
  display: flex;
  gap: 12px;
}
.btn-sm {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-sm.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #05070f;
}
.btn-sm.primary:hover {
  box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4);
}
.btn-sm.ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border-strong);
}
.btn-sm.ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ============ 发展目标 ============ */
.goals {
  background: linear-gradient(180deg, transparent, rgba(124, 58, 237, 0.03), transparent);
}
.goal-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.goal-item {
  display: flex;
  gap: 24px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: var(--transition);
}
.goal-item:hover {
  border-color: var(--border-strong);
  transform: translateX(8px);
}
.goal-num {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
}
.goal-text h4 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text-1);
}
.goal-text p {
  font-size: 14px;
  color: var(--text-2);
}

/* ============ 联系我们 ============ */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: var(--transition);
}
.contact-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}
.contact-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(124, 58, 237, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
}
.contact-detail h4 {
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 4px;
  font-weight: 500;
}
.contact-detail p,
.contact-detail a {
  font-size: 16px;
  color: var(--text-1);
  text-decoration: none;
  font-weight: 600;
}
.contact-detail a:hover {
  color: var(--cyan);
}

/* 联系表单 */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px;
  backdrop-filter: blur(20px);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-1);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 100px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-submit {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #05070f;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.4);
}
.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
  margin-top: 14px;
}

/* ============ 页脚 ============ */
footer {
  border-top: 1px solid var(--border);
  padding: 50px 0 30px;
  background: rgba(5, 7, 15, 0.8);
  backdrop-filter: blur(20px);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 30px;
}
.footer-brand .logo {
  margin-bottom: 12px;
}
.footer-brand p {
  color: var(--text-3);
  font-size: 14px;
  max-width: 320px;
}
.footer-col h5 {
  font-size: 14px;
  color: var(--text-1);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-3);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--cyan);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}
.footer-bottom .vision {
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 6px;
}

/* ============ 滚动进入动画 ============ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============ 响应式 ============ */
@media (max-width: 968px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }
  .product-grid {
    grid-template-columns: 1fr;
  }
  .product-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(5, 7, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open {
    display: flex;
  }
  .menu-toggle {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  section {
    padding: 70px 0;
  }
  .about-highlights {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 568px) {
  .about-highlights {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .stat strong {
    font-size: 18px;
  }
}