/* ====== 基础重置 & 设计令牌 ====== */
:root {
  /* 品牌色：好呈橙 + 科技金 */
  --green-50:  #fff5ed;
  --green-100: #ffe6d4;
  --green-200: #f9c9a3;
  --green-300: #f7b07d;
  --green-400: #f0945d;
  --green-500: #eb6819;
  --green-600: #d14f16;
  --green-700: #a83b10;
  --green-800: #7c2b0c;

  --gold-300: #f0d488;
  --gold-400: #e3bd6c;
  --gold-500: #d4af37;
  --gold-600: #b8941f;

  /* 中性 */
  --bg-0: #0a0f1a;
  --bg-1: #0f1623;
  --bg-2: #141d2e;
  --bg-3: #1a2540;
  --bg-4: #233152;

  --text-100: #f4f6fa;
  --text-200: #e0e5ed;
  --text-300: #c1c8d3;
  --text-400: #8b94a3;
  --text-500: #6b7385;
  --text-600: #4a5163;

  /* 边框 / 阴影 */
  --border-1: rgba(255,255,255,0.06);
  --border-2: rgba(255,255,255,0.12);
  --border-3: rgba(30, 210, 143, 0.2);

  --shadow-sm: 0 2px 12px rgba(0,0,0,0.25);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 40px rgba(235, 104, 25, 0.25);

  /* 字号 */
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 32px;
  --fs-3xl: 40px;
  --fs-4xl: 56px;
  --fs-5xl: 80px;

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* 间距 */
  --gap-1: 8px;
  --gap-2: 16px;
  --gap-3: 24px;
  --gap-4: 40px;
  --gap-5: 64px;

  /* 过渡 */
  --t-fast: 0.18s ease;
  --t-med: 0.32s ease;
  --t-slow: 0.6s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-200);
  background: var(--bg-0);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gap-3);
}

/* ====== 通用组件 ====== */
.gradient-text {
  background: linear-gradient(135deg, var(--green-400) 0%, var(--gold-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--t-med);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff;
  box-shadow: 0 8px 24px rgba(30,210,143,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(30,210,143,0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--text-100);
  border: 1px solid var(--border-2);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--green-500);
  color: var(--green-300);
}

.btn-light {
  background: #fff;
  color: var(--bg-1);
  font-weight: 600;
}
.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,255,255,0.2);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ====== 导航栏 ====== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--t-med);
}
.navbar.scrolled {
  background: rgba(10, 15, 26, 0.92);
  border-bottom-color: var(--border-1);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gap-3);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-3);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-img {
  height: 38px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}
.logo-img-footer {
  height: 34px;
  width: auto;
  display: block;
}

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

.nav-link {
  padding: 8px 14px;
  font-size: var(--fs-sm);
  color: var(--text-300);
  border-radius: var(--r-sm);
  transition: all var(--t-fast);
  position: relative;
}
.nav-link:hover { color: var(--text-100); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--green-400); }
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: var(--green-400);
  border-radius: 2px;
}

.nav-cta {
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--t-fast);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(30,210,143,0.4); }

.menu-toggle {
  display: none;
  width: 32px;
  height: 32px;
  position: relative;
}
.menu-toggle span {
  position: absolute;
  left: 4px;
  right: 4px;
  height: 2px;
  background: var(--text-100);
  border-radius: 2px;
  transition: all var(--t-fast);
}
.menu-toggle span:nth-child(1) { top: 9px; }
.menu-toggle span:nth-child(2) { top: 15px; }
.menu-toggle span:nth-child(3) { top: 21px; }

/* ====== Hero 区域 ====== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 110px 0 60px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}
.hero-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--green-500);
  top: -200px;
  right: -150px;
  animation: float 12s ease-in-out infinite;
}
.hero-glow-2 {
  width: 500px;
  height: 500px;
  background: var(--gold-500);
  bottom: -200px;
  left: -150px;
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.1); }
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--green-400);
  border-radius: 50%;
  opacity: 0;
  animation: rise linear infinite;
  box-shadow: 0 0 6px var(--green-400);
}
@keyframes rise {
  0% { transform: translateY(100vh); opacity: 0; }
  10% { opacity: 0.8; }
  90% { opacity: 0.8; }
  100% { transform: translateY(-100px); opacity: 0; }
}

.hero-container {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--gap-3);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--gap-5);
  align-items: center;
  min-height: calc(100vh - 170px);
}

.hero-content { animation: fadeInUp 1s var(--t-med) both; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px 6px 8px;
  background: rgba(30,210,143,0.1);
  border: 1px solid rgba(30,210,143,0.3);
  border-radius: 999px;
  font-size: var(--fs-sm);
  color: var(--green-300);
  margin-bottom: var(--gap-3);
}
.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--green-400);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(30,210,143,0.2);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(30,210,143,0.2); }
  50% { box-shadow: 0 0 0 8px rgba(30,210,143,0); }
}

.hero-title {
  font-size: var(--fs-5xl);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  color: var(--text-100);
  margin-bottom: var(--gap-2);
}
.hero-title-line { display: block; }

.hero-subtitle {
  font-size: var(--fs-md);
  color: var(--text-400);
  letter-spacing: 4px;
  margin-bottom: var(--gap-3);
  font-weight: 500;
}

.hero-desc {
  font-size: var(--fs-md);
  color: var(--text-300);
  max-width: 540px;
  margin-bottom: var(--gap-4);
  line-height: 1.8;
}
.hero-desc strong {
  color: var(--green-300);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: var(--gap-2);
  margin-bottom: var(--gap-4);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-3);
  padding-top: var(--gap-3);
  border-top: 1px solid var(--border-1);
}
.stat {
  position: relative;
}
.stat-num {
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--text-100);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-num sup {
  font-size: var(--fs-md);
  color: var(--green-400);
  margin-left: 2px;
  vertical-align: super;
}
.stat-label {
  font-size: var(--fs-sm);
  color: var(--text-400);
}

/* Hero 视觉 */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeInUp 1.2s 0.3s var(--t-med) both;
}

.billiards-scene {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 540px;
}

.billiards-table {
  position: absolute;
  inset: 8%;
  background: linear-gradient(135deg, #1a4630 0%, #0d2a1c 100%);
  border-radius: var(--r-lg);
  padding: 22px;
  box-shadow:
    inset 0 0 40px rgba(0,0,0,0.5),
    0 30px 80px rgba(0,0,0,0.6);
}

.table-rail {
  position: absolute;
  inset: 0;
  border: 6px solid #2a1d0f;
  border-radius: var(--r-lg);
  box-shadow: inset 0 0 0 2px #5c4426, 0 0 0 2px #1a1108;
  pointer-events: none;
}

.table-felt {
  position: relative;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at center, #1f5a3d 0%, #0d3324 100%);
  border-radius: 12px;
  overflow: hidden;
}

.felt-light {
  position: absolute;
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0.5;
}
.felt-light-1 {
  width: 120px;
  height: 120px;
  background: #1a5c3d;
  top: 10%;
  left: 15%;
}
.felt-light-2 {
  width: 100px;
  height: 100px;
  background: var(--gold-400);
  bottom: 15%;
  right: 10%;
  opacity: 0.3;
}

/* 摄像头设备 */
.device {
  position: absolute;
  z-index: 3;
}

.device-camera {
  top: 12%;
  right: 14%;
  width: 80px;
  height: 80px;
}
.device-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(30,210,143,0.4), transparent);
  animation: pulse 3s ease-in-out infinite;
}
.device-body {
  position: relative;
  width: 80px;
  height: 60px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 8px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cam-lens {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #4a90e2, #1a2540 50%, #000 80%);
  box-shadow: inset 0 0 8px rgba(0,0,0,0.8), 0 0 12px rgba(74,144,226,0.4);
  position: relative;
}
.cam-lens::after {
  content: "";
  position: absolute;
  top: 25%;
  left: 30%;
  width: 30%;
  height: 30%;
  background: rgba(255,255,255,0.6);
  border-radius: 50%;
}
.device-beam {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 200px;
  background: linear-gradient(to bottom, rgba(74,144,226,0.25), transparent);
  clip-path: polygon(30% 0, 70% 0, 100% 100%, 0 100%);
  opacity: 0.6;
}

/* 点单屏设备 */
.device-screen {
  bottom: 14%;
  left: 12%;
  width: 110px;
}
.screen-frame {
  width: 100px;
  height: 130px;
  background: #0a0f1a;
  border: 2px solid #2a3142;
  border-radius: 8px;
  padding: 6px;
  position: relative;
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
}
.screen-content {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--green-700) 0%, #0a0f1a 100%);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}
.screen-line {
  height: 4px;
  background: rgba(255,255,255,0.6);
  border-radius: 2px;
}
.screen-line.short {
  width: 60%;
  background: rgba(255,255,255,0.3);
}
.screen-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-top: 4px;
}
.screen-grid::before, .screen-grid::after {
  content: "";
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
}
.screen-stand {
  width: 40px;
  height: 12px;
  background: #2a3142;
  margin: 4px auto 0;
  border-radius: 0 0 6px 6px;
}

/* 灯光设备 */
.device-light {
  top: 22%;
  left: 18%;
  width: 80px;
}
.light-hood {
  width: 60px;
  height: 30px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 30px 30px 4px 4px;
  margin: 0 auto;
  position: relative;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.light-hood::before {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 8px;
  background: #2a3142;
  border-radius: 2px;
}
.light-bulb {
  width: 80px;
  height: 80px;
  background: radial-gradient(ellipse, rgba(240,212,136,0.7), transparent 70%);
  margin-top: -10px;
  filter: blur(8px);
  animation: flicker 4s ease-in-out infinite;
}
@keyframes flicker {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* 球 */
.ball {
  position: absolute;
  border-radius: 50%;
  box-shadow:
    inset -3px -3px 6px rgba(0,0,0,0.4),
    inset 2px 2px 4px rgba(255,255,255,0.4),
    0 4px 8px rgba(0,0,0,0.3);
}
.ball-1 {
  width: 22px;
  height: 22px;
  background: radial-gradient(circle at 30% 30%, #fff, #e6e6e6 70%, #999);
  bottom: 25%;
  right: 30%;
  animation: ballMove1 8s ease-in-out infinite;
}
.ball-2 {
  width: 18px;
  height: 18px;
  background: radial-gradient(circle at 30% 30%, #ff6464, #c41e1e 70%, #800);
  bottom: 35%;
  right: 45%;
  animation: ballMove2 10s ease-in-out infinite;
}
.ball-3 {
  width: 16px;
  height: 16px;
  background: radial-gradient(circle at 30% 30%, #ffe066, #d4af37 70%, #806000);
  bottom: 50%;
  right: 25%;
  animation: ballMove3 12s ease-in-out infinite;
}
@keyframes ballMove1 {
  0%, 100% { transform: translate(0,0); }
  50% { transform: translate(-30px, -20px); }
}
@keyframes ballMove2 {
  0%, 100% { transform: translate(0,0); }
  50% { transform: translate(40px, -10px); }
}
@keyframes ballMove3 {
  0%, 100% { transform: translate(0,0); }
  50% { transform: translate(-20px, 30px); }
}

/* 数据流 */
.data-stream {
  position: absolute;
  background: linear-gradient(to right, transparent, var(--green-400), transparent);
  height: 1px;
  border-radius: 1px;
  animation: streamFlow 3s linear infinite;
  opacity: 0.6;
}
.data-stream-1 {
  top: 30%;
  left: 25%;
  width: 50%;
  animation-delay: 0s;
}
.data-stream-2 {
  top: 60%;
  left: 30%;
  width: 40%;
  animation-delay: 1s;
}
.data-stream-3 {
  top: 80%;
  left: 20%;
  width: 60%;
  animation-delay: 2s;
}
@keyframes streamFlow {
  0% { transform: translateX(-100%); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateX(100%); opacity: 0; }
}

.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-400);
  font-size: var(--fs-xs);
  letter-spacing: 2px;
}
.scroll-arrow {
  width: 22px;
  height: 22px;
  border-right: 2px solid var(--text-400);
  border-bottom: 2px solid var(--text-400);
  transform: rotate(45deg);
  animation: bounceDown 2s ease-in-out infinite;
}
@keyframes bounceDown {
  0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.6; }
  50% { transform: rotate(45deg) translate(5px, 5px); opacity: 1; }
}

/* ====== 通用 Section ====== */
.section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--gap-5);
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(30,210,143,0.1);
  border: 1px solid rgba(30,210,143,0.3);
  border-radius: 999px;
  font-size: var(--fs-xs);
  letter-spacing: 2px;
  color: var(--green-300);
  margin-bottom: var(--gap-2);
  font-weight: 600;
}

.section-title {
  font-size: var(--fs-4xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-100);
  letter-spacing: -1px;
  margin-bottom: var(--gap-2);
}

.section-desc {
  font-size: var(--fs-md);
  color: var(--text-400);
  line-height: 1.8;
}

.subhead {
  font-size: var(--fs-xl);
  color: var(--text-100);
  margin-bottom: var(--gap-3);
  font-weight: 600;
  text-align: center;
}

/* ====== 关于我们 ====== */
.about { background: linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%); }

.about-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-2);
  margin-bottom: var(--gap-5);
}

.about-card {
  position: relative;
  padding: var(--gap-3);
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--border-1);
  border-radius: var(--r-lg);
  transition: all var(--t-med);
  overflow: hidden;
}
.about-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(30,210,143,0.15), transparent);
  opacity: 0;
  transition: opacity var(--t-med);
}
.about-card:hover {
  border-color: var(--border-3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.about-card:hover::before { opacity: 1; }
.about-card > * { position: relative; }

.card-num {
  font-size: var(--fs-xs);
  color: var(--green-400);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: var(--gap-2);
}
.about-card h3 {
  font-size: var(--fs-lg);
  color: var(--text-100);
  margin-bottom: 8px;
}
.about-card p {
  font-size: var(--fs-sm);
  color: var(--text-400);
  line-height: 1.6;
}

/* 企业文化 */
.culture {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-2);
  padding: var(--gap-3) 0;
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  margin-bottom: var(--gap-5);
}

.culture-item {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-2);
  padding: var(--gap-2);
}

.culture-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(30,210,143,0.15), rgba(212,175,55,0.1));
  border: 1px solid rgba(30,210,143,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-400);
}

.culture-label {
  font-size: var(--fs-sm);
  color: var(--green-300);
  font-weight: 600;
  margin-bottom: 4px;
}

.culture-text {
  font-size: var(--fs-sm);
  color: var(--text-300);
  line-height: 1.8;
}

/* 时间线 */
.timeline-wrap {
  position: relative;
  padding-top: var(--gap-4);
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--gap-2);
  margin-top: var(--gap-4);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 4%;
  right: 4%;
  height: 2px;
  background: linear-gradient(to right, var(--green-500), var(--gold-500));
  opacity: 0.3;
}

.timeline-item {
  position: relative;
  text-align: center;
  padding-top: 70px;
}
.timeline-item::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-0);
  border: 2px solid var(--green-500);
  transition: all var(--t-med);
}
.timeline-item:hover::before {
  background: var(--green-500);
  transform: translateX(-50%) scale(1.3);
  box-shadow: 0 0 16px rgba(30,210,143,0.6);
}

.timeline-item.highlight::before {
  background: var(--green-500);
  border-color: var(--gold-500);
  box-shadow: 0 0 16px rgba(30,210,143,0.5);
}

.time {
  font-size: var(--fs-xs);
  color: var(--green-400);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.event {
  font-size: var(--fs-sm);
  color: var(--text-300);
  line-height: 1.6;
}

/* ====== BOS 系统 ====== */
.system { background: var(--bg-0); }

.system-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-2);
}

.sys-card {
  position: relative;
  padding: var(--gap-3);
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border-1);
  border-radius: var(--r-lg);
  transition: all var(--t-med);
  overflow: hidden;
}
.sys-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green-500), var(--gold-500));
  opacity: 0;
  transition: opacity var(--t-med);
}
.sys-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-3);
  box-shadow: var(--shadow-glow);
}
.sys-card:hover::before { opacity: 1; }

.sys-num {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--green-500);
  opacity: 0.4;
  margin-bottom: var(--gap-2);
  font-family: "SF Mono", ui-monospace, monospace;
}

.sys-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(30,210,143,0.2), rgba(212,175,55,0.1));
  border: 1px solid rgba(30,210,143,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-400);
  margin-bottom: var(--gap-2);
}

.sys-card h3 {
  font-size: var(--fs-xl);
  color: var(--text-100);
  margin-bottom: var(--gap-2);
  font-weight: 600;
}

.sys-card > p {
  font-size: var(--fs-sm);
  color: var(--text-400);
  line-height: 1.7;
  margin-bottom: var(--gap-2);
}

.sys-feats {
  padding-top: var(--gap-2);
  border-top: 1px solid var(--border-1);
}
.sys-feats li {
  position: relative;
  padding: 6px 0 6px 20px;
  font-size: var(--fs-sm);
  color: var(--text-300);
}
.sys-feats li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-400);
}

/* ====== 产品中心 ====== */
.products { background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%); }

.prod-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: var(--gap-4);
  flex-wrap: wrap;
}

.prod-tab {
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--border-1);
  font-size: var(--fs-sm);
  color: var(--text-300);
  transition: all var(--t-fast);
}
.prod-tab:hover { color: var(--text-100); border-color: var(--border-2); }
.prod-tab.active {
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  border-color: transparent;
  color: #fff;
}

.prod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-3);
}

.prod-card {
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border-1);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all var(--t-med);
  display: flex;
  flex-direction: column;
}
.prod-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-3);
  box-shadow: var(--shadow-md);
}
.prod-card.hidden {
  display: none;
}

.prod-visual {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-3), var(--bg-2));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.prod-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(30,210,143,0.1), transparent 70%);
}

/* C6 Pro 收银机 */
.viz-screen-main {
  width: 140px;
  height: 90px;
  background: #0a0f1a;
  border: 4px solid #1a2540;
  border-radius: 6px;
  padding: 6px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 3px;
  position: absolute;
  top: 30px;
  left: 30px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.viz-line {
  grid-column: 1 / -1;
  height: 3px;
  background: linear-gradient(90deg, var(--green-400), var(--gold-500));
  border-radius: 2px;
}
.viz-line.short {
  width: 40%;
  grid-column: 1;
  background: rgba(30,210,143,0.5);
}
.viz-tile {
  background: rgba(30,210,143,0.25);
  border-radius: 2px;
}
.viz-screen-sub {
  width: 80px;
  height: 60px;
  background: #0a0f1a;
  border: 3px solid #1a2540;
  border-radius: 4px;
  padding: 4px;
  position: absolute;
  top: 50px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}
.viz-screen-sub .viz-line { background: rgba(255,255,255,0.4); }
.viz-screen-sub .viz-line:last-child { width: 60%; background: rgba(30,210,143,0.5); }
.viz-base {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 10px;
  background: #2a3142;
  border-radius: 2px;
}

/* P1 扫码机 */
.scanner-body {
  position: relative;
  width: 100px;
  height: 130px;
}
.scanner-head {
  width: 90px;
  height: 90px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 50% 50% 12px 12px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}
.scanner-eye {
  width: 50px;
  height: 50px;
  background: radial-gradient(circle at 30% 30%, #4a90e2, #1a2540 50%, #000 80%);
  border-radius: 50%;
  box-shadow: inset 0 0 12px rgba(0,0,0,0.8);
  position: relative;
}
.scanner-eye::after {
  content: "";
  position: absolute;
  top: 25%;
  left: 30%;
  width: 25%;
  height: 25%;
  background: rgba(255,255,255,0.6);
  border-radius: 50%;
}
.scanner-neck {
  width: 30px;
  height: 20px;
  background: #2a3142;
  margin: -8px auto 0;
  border-radius: 4px;
}
.scanner-base {
  width: 60px;
  height: 14px;
  background: #2a3142;
  margin: 4px auto 0;
  border-radius: 4px;
}
.scanner-beam {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--green-400), transparent);
  animation: streamFlow 2s linear infinite;
  opacity: 0.6;
}

/* D1 打印机 */
.printer-body {
  position: relative;
  width: 140px;
  height: 90px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
}
.printer-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 20px;
  background: #1a2533;
  border-radius: 8px 8px 0 0;
}
.printer-paper {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 70px;
  background: linear-gradient(180deg, #fff 0%, #e6e6e6 100%);
  border-radius: 2px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  overflow: hidden;
}
.printer-text {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 70px;
  padding: 6px 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.printer-text::before,
.printer-text::after {
  content: "";
  height: 1.5px;
  background: var(--bg-3);
}
.printer-text::before { background: linear-gradient(90deg, var(--bg-3) 30%, transparent 30%); }
.printer-text::after { width: 70%; background: var(--bg-3); margin-top: auto; margin-bottom: 6px; }
.printer-exit {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 6px;
  background: #0a0f1a;
  border-radius: 2px;
}

/* SC100W */
.camera-body {
  position: relative;
  width: 110px;
  height: 130px;
}
.cam-led {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--green-400);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green-400);
  animation: pulse 2s ease-in-out infinite;
}
.cam-lens-main {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(180deg, #2a3142, #161b26);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}
.cam-lens-inner {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #4a90e2, #1a2540 50%, #000 80%);
  box-shadow: inset 0 0 12px rgba(0,0,0,0.8);
}
.cam-lens-shine {
  position: absolute;
  top: 25%;
  left: 30%;
  width: 14px;
  height: 14px;
  background: rgba(255,255,255,0.5);
  border-radius: 50%;
}
.cam-mount {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 14px;
  background: #2a3142;
  border-radius: 2px;
}
.cam-stand {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 30px;
  background: linear-gradient(180deg, #2a3142, #1a2533);
  border-radius: 4px;
}
.cam-scan {
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  width: 240px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--green-400), transparent);
  animation: streamFlow 3s linear infinite;
  opacity: 0.5;
}

/* HC-800A */
.host-body {
  position: relative;
  width: 130px;
  height: 100px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  padding: 12px;
  gap: 8px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
}
.host-led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}
.host-led-1 { background: var(--green-400); box-shadow: 0 0 6px var(--green-400); }
.host-led-2 { background: var(--gold-500); box-shadow: 0 0 6px var(--gold-500); }
.host-led-3 { background: #ff5050; box-shadow: 0 0 6px #ff5050; }
.host-body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 24px;
  background:
    linear-gradient(90deg,
      var(--green-400) 0 6px, transparent 6px 12px,
      var(--gold-500) 12px 18px, transparent 18px 24px,
      #ff5050 24px 30px, transparent 30px 36px);
  background-size: 36px 6px;
  background-repeat: repeat-x;
  background-position: 12px 12px;
  background-color: var(--bg-3);
  border-radius: 8px 8px 0 0;
}
.host-vent {
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
}
.host-antenna {
  position: absolute;
  top: -16px;
  right: 16px;
  width: 2px;
  height: 18px;
  background: linear-gradient(180deg, #2a3142, transparent);
}
.host-antenna::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--green-400);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green-400);
}

/* O2 点单屏 */
.order-screen {
  position: relative;
  width: 130px;
}
.os-frame {
  width: 130px;
  height: 150px;
  background: #0a0f1a;
  border: 3px solid #2a3142;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
}
.os-header {
  height: 16px;
  background: #161b26;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 6px;
}
.os-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
}
.os-dot:first-child { background: #ff5f57; }
.os-dot:nth-child(2) { background: #febc2e; }
.os-dot:nth-child(3) { background: #28c840; }
.os-content {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: linear-gradient(180deg, #0a0f1a 0%, #0d3324 100%);
}
.os-product {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
}
.os-img {
  width: 18px;
  height: 18px;
  background: linear-gradient(135deg, var(--green-400), var(--gold-500));
  border-radius: 3px;
}
.os-name {
  font-size: 9px;
  color: #fff;
  flex: 1;
}
.os-price {
  font-size: 9px;
  color: var(--gold-500);
  font-weight: 600;
}
.os-stand {
  width: 40px;
  height: 12px;
  background: #2a3142;
  margin: 4px auto 0;
  border-radius: 0 0 4px 4px;
}
.os-base {
  width: 80px;
  height: 6px;
  background: #2a3142;
  margin: 0 auto;
  border-radius: 0 0 4px 4px;
}

/* CP05 灯控 */
.plug-body {
  position: relative;
  width: 80px;
  height: 110px;
}
.plug-front {
  width: 80px;
  height: 60px;
  background: linear-gradient(180deg, #e6e6e6, #c0c0c0);
  border-radius: 8px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.plug-led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.plug-led-g {
  background: var(--green-400);
  box-shadow: 0 0 6px var(--green-400);
}
.plug-led-r {
  background: var(--gold-500);
  box-shadow: 0 0 6px var(--gold-500);
}
.plug-button {
  width: 18px;
  height: 18px;
  background: radial-gradient(circle, #fff 30%, #c0c0c0);
  border-radius: 50%;
  border: 1px solid #999;
}
.plug-pins {
  position: absolute;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 14px;
}
.plug-pins::before, .plug-pins::after {
  content: "";
  width: 4px;
  height: 36px;
  background: linear-gradient(180deg, #b8941f, #806000);
  border-radius: 1px;
}

/* RC6 空调管理器 */
.ac-body {
  position: relative;
  width: 90px;
  height: 90px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
}
.ac-indicator {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--green-400);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--green-400);
  animation: pulse 2s ease-in-out infinite;
}
.ac-ir {
  position: absolute;
  width: 4px;
  height: 30px;
  background: linear-gradient(180deg, transparent, var(--gold-500));
  border-radius: 2px;
  animation: irPulse 1.5s ease-out infinite;
  filter: blur(1px);
}
.ac-ir:nth-child(2) {
  bottom: -10px;
  left: 30%;
  transform: rotate(-30deg);
  transform-origin: top;
}
.ac-ir.ac-ir-2 {
  bottom: -10px;
  left: 48%;
  animation-delay: 0.5s;
}
.ac-ir.ac-ir-3 {
  bottom: -10px;
  right: 30%;
  left: auto;
  transform: rotate(30deg);
  animation-delay: 1s;
}
@keyframes irPulse {
  0% { opacity: 0; transform: translateY(0); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(20px); }
}

/* TL16 集中式灯控 */
.rack-body {
  position: relative;
  width: 130px;
  height: 140px;
  background: linear-gradient(180deg, #2a3142, #161b26);
  border-radius: 6px;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
}
.rack-row {
  height: 16px;
  background: #0a0f1a;
  border-radius: 3px;
  border: 1px solid #4a5163;
}
.rack-led {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--green-400);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--green-400);
}
.rack-led:first-of-type { top: 20px; left: 18px; }
.rack-led:last-of-type { top: 20px; right: 18px; background: var(--gold-500); box-shadow: 0 0 6px var(--gold-500); }

/* 产品信息 */
.prod-info { padding: var(--gap-3); flex: 1; display: flex; flex-direction: column; }

.prod-series {
  font-size: var(--fs-xs);
  color: var(--green-400);
  letter-spacing: 1.5px;
  margin-bottom: 4px;
  font-weight: 600;
}

.prod-info h3 {
  font-size: var(--fs-xl);
  color: var(--text-100);
  margin-bottom: 8px;
  font-weight: 600;
}

.prod-info > p {
  font-size: var(--fs-sm);
  color: var(--text-400);
  line-height: 1.7;
  margin-bottom: var(--gap-2);
}

.prod-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--gap-2);
}
.prod-tags span {
  padding: 4px 10px;
  font-size: 11px;
  background: rgba(30,210,143,0.1);
  color: var(--green-300);
  border: 1px solid rgba(30,210,143,0.2);
  border-radius: 999px;
}

.prod-highlights {
  margin-top: auto;
  padding-top: var(--gap-2);
  border-top: 1px solid var(--border-1);
}
.prod-highlights li {
  position: relative;
  padding: 4px 0 4px 16px;
  font-size: var(--fs-sm);
  color: var(--text-300);
}
.prod-highlights li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--green-400);
}

/* ====== 应用方案 ====== */
.solutions { background: var(--bg-0); }

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-2);
  margin-bottom: var(--gap-5);
}

.scenario-card {
  position: relative;
  padding: var(--gap-3);
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border-1);
  border-radius: var(--r-lg);
  transition: all var(--t-med);
  overflow: hidden;
}
.scenario-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-3);
  box-shadow: var(--shadow-md);
}
.scenario-card.featured {
  background: linear-gradient(135deg, rgba(30,210,143,0.08), rgba(212,175,55,0.05));
  border-color: var(--border-3);
}
.featured-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff;
  font-size: 11px;
  border-radius: 999px;
  font-weight: 600;
}

.scenario-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(30,210,143,0.15), rgba(212,175,55,0.1));
  border: 1px solid rgba(30,210,143,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-400);
  margin-bottom: var(--gap-2);
}

.scenario-card h3 {
  font-size: var(--fs-lg);
  color: var(--text-100);
  margin-bottom: 8px;
  font-weight: 600;
}

.scenario-card > p {
  font-size: var(--fs-sm);
  color: var(--text-400);
  line-height: 1.6;
  margin-bottom: var(--gap-2);
}

.scenario-card ul li {
  position: relative;
  padding: 4px 0 4px 18px;
  font-size: var(--fs-sm);
  color: var(--text-300);
}
.scenario-card ul li::before {
  content: "•";
  position: absolute;
  left: 4px;
  color: var(--green-400);
}

/* ====== 技术优势 ====== */
.tech { background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%); }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-2);
  margin-bottom: var(--gap-5);
}

.tech-card {
  padding: var(--gap-3);
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border-1);
  border-radius: var(--r-lg);
  transition: all var(--t-med);
  position: relative;
  overflow: hidden;
}
.tech-card::after {
  content: "";
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(30,210,143,0.15), transparent);
  border-radius: 50%;
}
.tech-card:hover {
  border-color: var(--border-3);
  transform: translateY(-4px);
}

.tech-num {
  font-size: var(--fs-3xl);
  font-weight: 800;
  font-family: "SF Mono", ui-monospace, monospace;
  color: transparent;
  -webkit-text-stroke: 1px var(--green-500);
  opacity: 0.6;
  margin-bottom: var(--gap-2);
}

.tech-card h3 {
  font-size: var(--fs-xl);
  color: var(--text-100);
  margin-bottom: var(--gap-2);
  font-weight: 600;
}

.tech-card > p {
  font-size: var(--fs-sm);
  color: var(--text-400);
  line-height: 1.7;
  margin-bottom: var(--gap-2);
}

.tech-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tech-tags span {
  padding: 4px 12px;
  background: rgba(212,175,55,0.1);
  color: var(--gold-400);
  border: 1px solid rgba(212,175,55,0.3);
  border-radius: 999px;
  font-size: 11px;
}

.commit-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-3);
  padding: var(--gap-4);
  background: linear-gradient(135deg, rgba(30,210,143,0.15), rgba(212,175,55,0.1));
  border: 1px solid rgba(30,210,143,0.3);
  border-radius: var(--r-xl);
  position: relative;
  overflow: hidden;
}
.commit-banner::before {
  content: "";
  position: absolute;
  top: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(30,210,143,0.3), transparent);
  border-radius: 50%;
  filter: blur(40px);
}
.commit-title {
  font-size: var(--fs-xl);
  color: var(--text-100);
  margin-bottom: 8px;
  font-weight: 600;
}
.commit-sub {
  font-size: var(--fs-sm);
  color: var(--text-400);
}

/* ====== 联系我们 ====== */
.contact { background: var(--bg-0); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--gap-4);
  align-items: stretch;
}

.contact-form-wrap {
  padding: var(--gap-4);
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border-1);
  border-radius: var(--r-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-2);
  margin-bottom: var(--gap-2);
}

.form-group {
  margin-bottom: var(--gap-2);
}

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-300);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-1);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  color: var(--text-100);
  transition: all var(--t-fast);
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green-500);
  background: rgba(30,210,143,0.05);
  box-shadow: 0 0 0 3px rgba(30,210,143,0.1);
}
.form-group select { cursor: pointer; }
.form-group textarea { resize: vertical; min-height: 100px; }

.form-tip {
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--text-500);
  margin-top: var(--gap-2);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--gap-2);
}

.info-card {
  padding: var(--gap-2) var(--gap-3);
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--border-1);
  border-radius: var(--r-md);
  transition: all var(--t-fast);
}
.info-card:hover {
  border-color: var(--border-3);
}
.info-label {
  font-size: var(--fs-xs);
  color: var(--green-300);
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.info-value {
  font-size: var(--fs-base);
  color: var(--text-100);
  font-weight: 500;
}
.info-value a:hover {
  color: var(--green-400);
}

/* ====== 页脚 ====== */
.footer {
  background: var(--bg-1);
  border-top: 1px solid var(--border-1);
  padding: var(--gap-4) 0 var(--gap-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--gap-4);
  padding-bottom: var(--gap-4);
  border-bottom: 1px solid var(--border-1);
}

.footer-col h4 {
  font-size: var(--fs-base);
  color: var(--text-100);
  margin-bottom: var(--gap-2);
  font-weight: 600;
}

.footer-col a {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-400);
  padding: 6px 0;
  transition: color var(--t-fast);
}
.footer-col a:hover { color: var(--green-400); }

.footer-desc {
  font-size: var(--fs-sm);
  color: var(--text-400);
  margin-top: 8px;
  line-height: 1.6;
}

.contact-line {
  font-size: var(--fs-sm);
  color: var(--text-400);
  padding: 6px 0;
}
.contact-line a {
  color: inherit;
  text-decoration: none;
}
.contact-line a:hover {
  color: var(--green-400);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: var(--gap-3);
  font-size: var(--fs-xs);
  color: var(--text-500);
}

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

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ====== 响应式 ====== */
@media (max-width: 1024px) {
  :root {
    --fs-5xl: 56px;
    --fs-4xl: 40px;
  }
  .nav-menu { gap: 0; }
  .nav-link { padding: 8px 10px; font-size: 13px; }

  .hero-container { grid-template-columns: 1fr; }
  .hero-visual { display: none; }

  .about-grid { grid-template-columns: repeat(2, 1fr); }
  .system-grid, .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(3, 1fr); }
  .timeline-item:nth-child(n+4) { margin-top: 40px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10,15,26,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 12px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--t-med);
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-cta { display: none; }
  .menu-toggle { display: block; }
  .logo-img { height: 32px; }
  .logo-img-footer { height: 30px; }

  :root {
    --fs-5xl: 42px;
    --fs-4xl: 32px;
    --fs-3xl: 28px;
    --gap-5: 48px;
  }
  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }

  .hero { padding-top: 100px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  .about-grid, .culture { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .timeline-item { padding-top: 30px; text-align: left; padding-left: 30px; }
  .timeline-item::before {
    top: 0;
    left: 4px;
    transform: none;
  }
  .timeline-item:hover::before {
    transform: scale(1.3);
  }
  .timeline::before {
    top: 4px;
    bottom: 4px;
    left: 8px;
    right: auto;
    width: 2px;
    height: auto;
    background: linear-gradient(to bottom, var(--green-500), var(--gold-500));
  }

  .system-grid, .prod-grid, .scenario-grid, .tech-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .commit-banner { flex-direction: column; align-items: flex-start; text-align: left; }

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

@media (max-width: 480px) {
  :root {
    --fs-5xl: 36px;
    --fs-4xl: 28px;
  }
  .container { padding: 0 16px; }
  .hero-stat { font-size: 14px; }
}