/* ===== 顶部引导栏 ===== */
.guide-bar {
  background: linear-gradient(90deg, #0a1733 0%, #0d2155 50%, #0a1733 100%);
  border-bottom: 1px solid rgba(56, 189, 248, 0.15);
  font-size: 13px;
  color: #93c5fd;
}
.guide-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 36px;
  padding: 0 24px;
}
.guide-welcome {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.guide-welcome iconify-icon {
  color: #38bdf8;
  font-size: 16px;
}
.guide-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.guide-back-home {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #7dd3fc;
  text-decoration: none;
  transition: color 0.2s;
}
.guide-back-home:hover {
  color: #ffffff;
}
.guide-social {
  display: flex;
  align-items: center;
  gap: 15px;
}
.guide-social-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  cursor: pointer;
  transition: background 0.2s;
}
.guide-social-item iconify-icon {
  font-size: 18px;
  color: #93c5fd;
  transition: color 0.2s;
}
.guide-social-item:hover iconify-icon {
  color: #ffffff;
}
.guide-social-label {
  font-size: 11px;
  color: #64748b;
  margin-left: 4px;
}
.guide-social-item .weixin {
	width: 100%;
	height:100%;
	background: url(../images/top_icon4.png) no-repeat center;
	background-size:100% auto;
}
.guide-social-item .shipinhao {
	width: 100%;
	height:100%;
	background:url(../images/top_icon5.png) no-repeat center;
	background-size:100% auto;
}
.guide-social-item .douyin {
	width: 100%;
	height:100%;
	background:url(../images/top_icon2.png) no-repeat center;
	background-size:100% auto;
}
/* 二维码弹窗 */
.qr-popup {
  position: absolute;
	width:100px;
  top: 100%;
  right: 50%;
  background: #ffffff;
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateX(50%) translateY(4px);
  transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
  z-index: 100;
  text-align: center;
  pointer-events: none;
}
.guide-social-item:hover .qr,
.guide-social-item:hover .qr-popup {
  opacity: 1;
  visibility: visible;
  transform: translateX(50%) translateY(8px);
  pointer-events: auto;
}
.qr-popup img {
  width: 120px;
  border-radius: 8px;
  display: block;
}
.qr-popup p {
  margin: 8px 0 0;
  font-size: 12px;
  color: #334155;
  font-weight: 600;
}
/* 二维码小三角 */
.qr-popup::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: #ffffff;
}

/* ===== 移动端悬浮菜单 ===== */
.mobile-nav {
  position: absolute;
  top: 100%;
  right: 12px;
  z-index: 70;
  width: 250px;
  max-height: 33vh;
  overflow-y: auto;
  padding: 10px;
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 16px;
  background: rgba(7, 16, 38, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 18px 50px rgba(2, 8, 23, 0.6);
}
.mobile-nav a {
  display: block;
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 17px;
  color: #e2e8f0;
  transition: background 0.2s, color 0.2s;
}
.mobile-nav a + a {
  margin-top: 2px;
}
.mobile-nav a:hover {
  background: rgba(56, 189, 248, 0.1);
  color: #ffffff;
}
.mobile-nav a.active {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}
/* 移动端隐藏顶部引导栏 */
@media (max-width: 1023px) {
  .guide-bar {
    display: none;
  }
}

/* ===== Logo 通用样式 ===== */
.site-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.3));
}
.site-logo-sm {
  height: 110px;
  width: 110px;
  object-fit: contain;
}

/* ===== Hero 区域圆环旋转动效 ===== */
.hero-ring-outer {
  animation: ring-rotate 24s linear infinite;
}
.hero-ring-mid {
  animation: ring-rotate-reverse 18s linear infinite;
}
.hero-ring-inner {
  animation: ring-rotate 12s linear infinite;
}
@keyframes ring-rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@keyframes ring-rotate-reverse {
  from {
    transform: rotate(360deg);
  }
  to {
    transform: rotate(0deg);
  }
}

/* 圆环光点轨道：与三层圆环同心，随轨道旋转 */
.hero-orbit {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.hero-orbit-outer {
  inset: 24px; /* 对应 inset-6 */
  animation: ring-rotate 10s linear infinite;
}
.hero-orbit-mid {
  inset: 64px; /* 对应 inset-16 */
  animation: ring-rotate-reverse 8s linear infinite;
}
.hero-orbit-inner {
  inset: 96px; /* 对应 inset-24 */
  animation: ring-rotate 6s linear infinite;
}
.orbit-dot {
  position: absolute;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7dd3fc;
}
/* 外侧光点：圆心略在环外侧 */
.orbit-dot-out {
  top: -7px;
  transform: translateX(-50%);
  box-shadow: 0 0 10px 3px rgba(56, 189, 248, 0.9), 0 0 24px 8px rgba(56, 189, 248, 0.4);
  animation: dot-twinkle 2s ease-in-out infinite;
}
/* 里侧光点：圆心略在环内侧 */
.orbit-dot-in {
  top: -1px;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: #22d3ee;
  box-shadow: 0 0 8px 2px rgba(34, 211, 238, 0.8), 0 0 18px 6px rgba(34, 211, 238, 0.3);
  animation: dot-twinkle 2s ease-in-out 1s infinite;
}
@keyframes dot-twinkle {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

/* Logo 脉冲发光动效 */
.hero-logo-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-logo-wrap::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.35) 0%, transparent 70%);
  animation: logo-pulse 3s ease-in-out infinite;
}
.hero-logo {
  position: relative;
  z-index: 1;
	max-width: inherit;
	width: 300px;
  object-fit: contain;
  filter: drop-shadow(0 0 24px rgba(56, 189, 248, 0.55));
  animation: logo-float 4s ease-in-out infinite;
}
@keyframes logo-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.3);
    opacity: 1;
  }
}
@keyframes logo-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* Hero 圆形数据徽章 */
.hero-badge {
  position: absolute;
  width: 118px;
  height: 118px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(56, 189, 248, 0.35);
  background: radial-gradient(circle at 32% 28%, rgba(56, 189, 248, 0.22), rgba(11, 23, 51, 0.92) 70%);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.28), inset 0 0 18px rgba(56, 189, 248, 0.12);
  backdrop-filter: blur(4px);
  z-index: 2;
}
.hero-badge::after {
  content: "";
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 1px dashed rgba(56, 189, 248, 0.3);
  animation: ring-rotate 14s linear infinite;
}
.hero-badge-num {
  font-size: 27px;
  font-weight: 800;
  line-height: 1.1;
  color: #ffffff;
  background: linear-gradient(120deg, #7dd3fc, #38bdf8, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-badge-label {
  margin-top: 3px;
  font-size: 14px;
  color: #94a3b8;
  letter-spacing: 0.05em;
}
.hero-badge-b1 {
  left: -6px;
  top: 10%;
  animation: badge-float 4.5s ease-in-out infinite;
}
.hero-badge-b2 {
  right: -56px;
  top: 42%;
  animation: badge-float 4.5s ease-in-out 1.5s infinite;
}
.hero-badge-b3 {
  left: 18%;
  bottom: -10px;
  animation: badge-float 4.5s ease-in-out 3s infinite;
}
@keyframes badge-float {
  0%, 100% {
    transform: translateY(0) scale(1);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.28), inset 0 0 18px rgba(56, 189, 248, 0.12);
  }
  50% {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 0 38px rgba(56, 189, 248, 0.5), inset 0 0 22px rgba(56, 189, 248, 0.2);
  }
}

/* ===== 产品矩阵间歇滚动（每 5s 滚动一次，默认显示四个） ===== */
.marquee-section {
  position: relative;
}
.marquee-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.marquee-viewport {
  overflow: hidden;
  width: 1108px;
  max-width: 100%;
  /* 上下留白避免卡片悬停上浮时被裁切，负外边距抵消占位 */
  padding: 14px 4px;
  margin: -14px -4px;
}
.marquee-track {
  display: flex;
  gap: 20px;
  width: max-content;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.marquee-track.no-anim {
  transition: none;
}
/* 产品卡片 */
.product-card {
  flex-shrink: 0;
  width: 260px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 28px 24px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  cursor: pointer;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 12px 40px rgba(56, 189, 248, 0.15);
}
.product-card-icon {
  width: 72px;
  height: 72px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.product-card-icon img {
  width: 56px;
  height: 56px;
  object-fit: contain;
}
.product-card-icon iconify-icon {
  font-size: 28px;
}
.product-card-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}
.product-card-desc {
  font-size: 15px;
  line-height: 1.6;
  color: #94a3b8;
}
/* 导航箭头：位于产品两侧 */
.marquee-arrow {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(56, 189, 248, 0.4);
  background: rgba(56, 189, 248, 0.05);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s;
  font-size: 20px;
  z-index: 5;
}
.marquee-arrow:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: rgba(56, 189, 248, 0.8);
  color: #ffffff;
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.4);
}
/* 窄屏隐藏箭头，允许横向滑动 */
@media (max-width: 1280px) {
  .marquee-viewport {
    width: 100%;
  }
}
@media (max-width: 768px) {
  .marquee-arrow {
    display: none;
  }
}

/* 标题装饰箭头 */
.section-title-deco {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.section-title-deco > div {
  text-align: center;
}
.section-title-deco .deco-arrow {
  color: rgba(56, 189, 248, 0.5);
  font-size: 20px;
}

/* ===== 为什么选择我们 ===== */
.why-us-grid {
  background:
    linear-gradient(rgba(56, 189, 248, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 100%);
}
.why-us-title {
  text-shadow: 0 0 40px rgba(56, 189, 248, 0.35);
}
.why-card {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  padding: 32px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.why-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--why-glow, rgba(56, 189, 248, 0.7)), transparent);
}
.why-card:hover {
  transform: translateX(8px);
  border-color: var(--why-border, rgba(56, 189, 248, 0.5));
  box-shadow: 0 8px 32px var(--why-shadow, rgba(56, 189, 248, 0.15));
}
.why-card-num {
  position: absolute;
  right: 40px;
  top: 16px;
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  font-style: italic;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, #7dd3fc, #38bdf8, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 14px rgba(56, 189, 248, 0.35));
  pointer-events: none;
	padding-right:10px;
}
.why-card-tag {
  position: absolute;
  right: 42px;
  top: 68px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--why-border, rgba(56, 189, 248, 0.45));
  background: var(--why-chip-bg, rgba(56, 189, 248, 0.12));
  color: var(--why-chip-color, #a5f3fc);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 999px;
  padding: 7px 20px;
}
.glow-cyan {
  --why-glow: rgba(56, 189, 248, 0.7);
  --why-border: rgba(56, 189, 248, 0.5);
  --why-shadow: rgba(56, 189, 248, 0.15);
  --why-chip-bg: rgba(56, 189, 248, 0.12);
  --why-chip-color: #a5f3fc;
  --ri-accent: #67e8f9;
}
.glow-blue {
  --why-glow: rgba(59, 130, 246, 0.7);
  --why-border: rgba(59, 130, 246, 0.5);
  --why-shadow: rgba(59, 130, 246, 0.15);
  --why-chip-bg: rgba(59, 130, 246, 0.14);
  --why-chip-color: #bfdbfe;
  --ri-accent: #93c5fd;
}
.glow-sky {
  --why-glow: rgba(14, 165, 233, 0.7);
  --why-border: rgba(14, 165, 233, 0.5);
  --why-shadow: rgba(14, 165, 233, 0.15);
  --why-chip-bg: rgba(14, 165, 233, 0.14);
  --why-chip-color: #bae6fd;
  --ri-accent: #7dd3fc;
}

/* ===== 什么是软件智能体工厂 · 左侧架构面板 ===== */
.arch-panel {
  position: relative;
  overflow: hidden;
}
.arch-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(56, 189, 248, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 60%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 60%);
  pointer-events: none;
}
.arch-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
  border: 1px solid rgba(52, 211, 153, 0.35);
  background: rgba(52, 211, 153, 0.1);
  color: #6ee7b7;
  font-size: 14px;
  border-radius: 999px;
  padding: 6px 14px;
}
.arch-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: live-pulse 1.8s ease-out infinite;
}
@keyframes live-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(52, 211, 153, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
  }
}
/* 垂直产线胶囊 */
.pl-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 18px 6px;
  border-radius: 12px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  background: rgba(56, 189, 248, 0.08);
  color: #cffafe;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  animation: pill-rise 0.6s ease-out both;
  animation-delay: var(--d, 0s);
}
.pl-pill iconify-icon {
  font-size: 28px;
  color: #67e8f9;
}
.pl-pill:hover {
  transform: translateY(-4px);
  border-color: rgba(103, 232, 249, 0.7);
  box-shadow: 0 8px 22px rgba(56, 189, 248, 0.25);
}
@keyframes pill-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.arch-caption {
  margin-top: 12px;
  text-align: center;
  font-size: 14px;
  letter-spacing: 0.25em;
  color: #64748b;
}
/* 核心工厂卡片 */
.fc-card {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(59, 130, 246, 0.3);
  background: rgba(59, 130, 246, 0.08);
  padding: 26px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.fc-card iconify-icon {
  display: block;
  margin: 0 0 12px;
  font-size: 40px;
  color: #93c5fd;
  animation: icon-breathe 3.2s ease-in-out infinite;
}
.fc-card:hover {
  transform: translateY(-4px);
  border-color: rgba(147, 197, 253, 0.6);
  box-shadow: 0 10px 28px rgba(59, 130, 246, 0.25);
}
@keyframes icon-breathe {
  0%, 100% {
    opacity: 0.75;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.12);
  }
}
/* 统一底座条 */
.base-bar {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
  padding: 22px 16px;
  text-align: center;
  font-size: 19px;
  font-weight: 600;
  color: #ffffff;
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.4);
}
.base-bar::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -60%;
  width: 40%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  animation: base-sheen 3.5s ease-in-out infinite;
}
@keyframes base-sheen {
  0% {
    left: -60%;
  }
  60%, 100% {
    left: 130%;
  }
}

/* ===== 智能体工厂 · 双线产能布局 ===== */
.dual-line-section .line-panel {
  position: relative;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(11, 23, 51, 0.72);
  backdrop-filter: blur(6px);
  padding: 28px;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.dual-line-section .line-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--lp-accent, #38bdf8), transparent);
}
.dual-line-section .line-panel:hover {
  transform: translateY(-6px);
  border-color: var(--lp-border, rgba(56, 189, 248, 0.5));
  box-shadow: 0 16px 44px var(--lp-shadow, rgba(56, 189, 248, 0.16));
}
.line-blue {
  --lp-accent: #60a5fa;
  --lp-border: rgba(96, 165, 250, 0.55);
  --lp-shadow: rgba(96, 165, 250, 0.16);
  --lp-num: #93c5fd;
}
.line-cyan {
  --lp-accent: #22d3ee;
  --lp-border: rgba(34, 211, 238, 0.55);
  --lp-shadow: rgba(34, 211, 238, 0.16);
  --lp-num: #67e8f9;
}
.line-panel-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.line-panel-head h3 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--lp-accent);
  text-shadow: 0 0 24px var(--lp-shadow);
}
.line-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--lp-num);
  border: 1px solid var(--lp-border);
  background: rgba(56, 189, 248, 0.1);
  box-shadow: 0 0 18px var(--lp-shadow);
  border-radius: 999px;
  padding: 8px 20px;
}
.line-chip iconify-icon {
  font-size: 30px;
}
.line-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.line-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 16px;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}
.line-list li:hover {
  border-color: var(--lp-border);
  background: rgba(56, 189, 248, 0.06);
  transform: translateX(6px);
}
.li-num {
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--lp-num);
  font-style: italic;
  text-shadow: 0 0 18px var(--lp-shadow);
}
.li-num::after {
  content: "、";
  font-style: normal;
  font-weight: 400;
  color: var(--lp-num);
}
.li-title {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}
.li-desc {
  margin-top: 3px;
  font-size: 12.5px;
  color: #94a3b8;
}
/* 中央双塔 */
.line-towers {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 20px 0;
}
.tower {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 132px;
  height: 320px;
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.1em;
  clip-path: polygon(18% 0, 100% 8%, 82% 100%, 0 92%);
  animation: tower-float 5s ease-in-out infinite;
}
.tower-icon {
  font-size: 44px;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.55));
}
.tower span {
  font-size: 22px;
}
.tower b {
  font-size: 46px;
  font-style: italic;
  text-shadow: 0 0 22px rgba(255, 255, 255, 0.45);
}
.tower-01 {
  background: linear-gradient(160deg, #3b82f6 0%, #1e40af 100%);
  box-shadow: 0 0 50px rgba(59, 130, 246, 0.45);
}
.tower-02 {
  background: linear-gradient(160deg, #67e8f9 0%, #0ea5e9 100%);
  box-shadow: 0 0 50px rgba(34, 211, 238, 0.45);
  animation-delay: 2.5s;
}
.tower-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.4) 50%, transparent 70%);
  animation: tower-sheen 3.2s ease-in-out infinite;
}
@keyframes tower-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}
@keyframes tower-sheen {
  0% {
    transform: translateX(-120%);
  }
  60%, 100% {
    transform: translateX(120%);
  }
}
@media (max-width: 1023px) {
  .line-towers {
    padding: 6px 0;
  }
  .tower {
    height: 220px;
    width: 96px;
  }
  .tower-icon {
    font-size: 32px;
  }
  .tower span {
    font-size: 17px;
  }
  .tower b {
    font-size: 34px;
  }
}

/* ===== 智铸 · 工业模型训练生产平台 ===== */
.zz-feature {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(56, 189, 248, 0.22);
  background: rgba(11, 23, 51, 0.72);
  backdrop-filter: blur(6px);
  padding: 26px 24px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.zz-feature::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 3px;
  background: linear-gradient(90deg, #38bdf8, transparent);
}
.zz-feature:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 14px 40px rgba(56, 189, 248, 0.16);
}
.zz-feature-num {
  position: absolute;
  right: 14px;
  top: 8px;
  font-size: 40px;
  font-weight: 800;
  font-style: italic;
  line-height: 1;
  color: rgba(255, 255, 255, 0.07);
  pointer-events: none;
}
.zz-feature .icon_pic {
	display: block;
	width:48px;
	height: 48px;
}
.zz-feature .icon_pic img {
	width:100%;
}
.zz-feature-icon {
  font-size: 38px;
  color: #67e8f9;
  filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.5));
  animation: icon-breathe 3.4s ease-in-out infinite;
}
.zz-feature h3 {
  margin-top: 14px;
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
}
.zz-feature p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 24px;
  color: #94a3b8;
}
/* 圆形工厂视觉 */
.zz-visual {
  position: relative;
  width: min(430px, 92vw);
  aspect-ratio: 1;
  margin: 0 auto;
}
.zz-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.zz-ring-tick {
  inset: 0;
  background: repeating-conic-gradient(from 0deg, rgba(56, 189, 248, 0.5) 0 1.4deg, transparent 1.4deg 9deg);
  -webkit-mask: radial-gradient(circle, transparent 0 76%, #000 76.5% 80%, transparent 80.5%);
  mask: radial-gradient(circle, transparent 0 76%, #000 76.5% 80%, transparent 80.5%);
  animation: ring-rotate 26s linear infinite;
}
.zz-ring-dash {
  inset: 44px;
  border: 1px dashed rgba(34, 211, 238, 0.45);
  animation: ring-rotate-reverse 18s linear infinite;
}
.zz-orbit {
  position: absolute;
  inset: 44px;
  border-radius: 50%;
  animation: ring-rotate 7s linear infinite;
}
.zz-orbit-dot {
  position: absolute;
  top: -5px;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  transform: translateX(-50%);
  background: #7dd3fc;
  box-shadow: 0 0 12px 4px rgba(56, 189, 248, 0.9), 0 0 30px 10px rgba(56, 189, 248, 0.35);
  animation: dot-twinkle 2s ease-in-out infinite;
}
.zz-core {
  position: absolute;
  inset: 88px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 20px;
  text-align: center;
  border: 1px solid rgba(56, 189, 248, 0.4);
  background: radial-gradient(circle at 35% 30%, rgba(56, 189, 248, 0.25), rgba(11, 23, 51, 0.95) 72%);
  animation: core-breathe 4s ease-in-out infinite;
}
@keyframes core-breathe {
  0%, 100% {
    box-shadow: 0 0 40px rgba(56, 189, 248, 0.25), inset 0 0 22px rgba(56, 189, 248, 0.1);
  }
  50% {
    box-shadow: 0 0 64px rgba(56, 189, 248, 0.45), inset 0 0 30px rgba(56, 189, 248, 0.2);
  }
}
.zz-core-icon {
  font-size: 54px;
  color: #7dd3fc;
  animation: ring-rotate 12s linear infinite;
}
.zz-core-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.06em;
}
.zz-core-sub {
  font-size: 13px;
  color: #94a3b8;
}
/* 全链路流水线 */
.zz-flow {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 48px;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.2);
  background: rgba(11, 23, 51, 0.6);
  padding: 18px 26px;
}
.zz-flow::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -60%;
  width: 40%;
  background: linear-gradient(105deg, transparent, rgba(56, 189, 248, 0.18), transparent);
  animation: base-sheen 4s ease-in-out infinite;
}
.zz-flow-item {
  font-size: 15px;
  font-weight: 600;
  color: #cffafe;
  border: 1px solid rgba(56, 189, 248, 0.3);
  background: rgba(56, 189, 248, 0.08);
  border-radius: 999px;
  padding: 7px 18px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.zz-flow-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.3);
}
.zz-flow-arrow {
  font-size: 20px;
  color: #38bdf8;
  animation: dot-twinkle 1.6s ease-in-out infinite;
}

/* ===== 鲲穹人工智能研究院 ===== */
.ri-card {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  padding: 24px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.ri-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--why-glow, rgba(56, 189, 248, 0.7)), transparent);
}
.ri-card:hover {
  transform: translateY(-6px);
  border-color: var(--why-border, rgba(56, 189, 248, 0.5));
  box-shadow: 0 12px 36px var(--why-shadow, rgba(56, 189, 248, 0.15));
}
.ri-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ri-card-head iconify-icon {
  font-size: 30px;
  color: var(--ri-accent, #67e8f9);
  filter: drop-shadow(0 0 10px var(--why-glow, rgba(56, 189, 248, 0.4)));
}
.ri-card-head h3 {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
}
.ri-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 24px;
  color: #94a3b8;
}
/* 三圆交汇视觉 */
.venn-wrap {
  position: relative;
  width: min(470px, 94vw);
  aspect-ratio: 470 / 400;
  margin: 0 auto;
}
.venn-circle {
  position: absolute;
  width: 55%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid rgba(56, 189, 248, 0.45);
  background: radial-gradient(circle at 35% 30%, rgba(56, 189, 248, 0.22), rgba(11, 23, 51, 0.55) 72%);
  box-shadow: 0 0 34px rgba(56, 189, 248, 0.18), inset 0 0 24px rgba(56, 189, 248, 0.1);
  backdrop-filter: blur(2px);
  animation: venn-float 5.5s ease-in-out infinite;
}
.venn-top {
  left: 22.5%;
  top: 0;
}
.venn-bl {
  left: 0;
  top: 41%;
  animation-delay: 1.8s;
}
.venn-br {
  right: 0;
  top: 41%;
  animation-delay: 3.6s;
}
@keyframes venn-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
.venn-num {
  font-size: clamp(26px, 4.6vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(120deg, #7dd3fc, #38bdf8, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.venn-num span {
  font-size: 0.6em;
}
.venn-label {
  font-size: clamp(12px, 1.6vw, 15px);
  color: #94a3b8;
  letter-spacing: 0.08em;
}
.venn-spark {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 10px 3px rgba(34, 211, 238, 0.8);
  animation: live-pulse 2.2s ease-out infinite;
}
.venn-spark.s1 {
  left: 37.5%;
  top: 51%;
}
.venn-spark.s2 {
  right: 37.5%;
  top: 51%;
  animation-delay: 0.7s;
}
.venn-spark.s3 {
  left: 49%;
  top: 71.5%;
  animation-delay: 1.4s;
}

/* ===== 底部 CTA ===== */
.cta-grid {
  background:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 80% at 70% 30%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 70% 30%, #000 20%, transparent 100%);
}
.cta-ring {
  animation: logo-float 6s ease-in-out infinite;
}
.cta-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
  padding: 14px 16px;
  transition: transform 0.3s, background 0.3s, box-shadow 0.3s;
}
.cta-chip iconify-icon {
  font-size: 26px;
  color: #ffffff;
  flex-shrink: 0;
}
.cta-chip:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 10px 28px rgba(2, 8, 23, 0.3);
}

/* ===== 返回顶部悬浮按钮 ===== */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 34px;
  z-index: 60;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(56, 189, 248, 0.45);
  background: rgba(11, 23, 51, 0.82);
  color: #7dd3fc;
  font-size: 24px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s, box-shadow 0.3s, color 0.3s, background 0.3s;
}
.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  color: #ffffff;
  background: rgba(37, 99, 235, 0.4);
  box-shadow: 0 0 34px rgba(56, 189, 248, 0.6);
  transform: translateY(-3px);
}

/* ===== 移动端整体优化 ===== */
@media (max-width: 1023px) {
  /* Hero：徽章与 logo 缩小，不超出屏幕 */
  .hero-logo {
    width: 200px;
  }
  .hero-badge {
    width: 84px;
    height: 84px;
  }
  .hero-badge-num {
    font-size: 19px;
  }
  .hero-badge-label {
    font-size: 11px;
    margin-top: 2px;
  }
  .hero-badge-b1 {
    left: -2px;
    top: 6%;
  }
  .hero-badge-b2 {
    right: -2px;
    top: 40%;
  }
  .hero-badge-b3 {
    left: 14%;
    bottom: -6px;
  }
  /* 垂直产线胶囊：上三下二两行居中（双类名提高优先级，覆盖 Tailwind .grid） */
  .pl-grid.pl-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  .pl-grid .pl-pill {
    width: 30%;
  }
  /* 为什么选择我们：数字与标签移到文字上方 */
  .why-card {
    display: flex;
    flex-direction: column;
  }
  .why-card-num {
    position: static;
    order: 1;
    align-self: flex-start;
    font-size: 48px;
  }
  .why-card-tag {
    position: static;
    order: 2;
    align-self: flex-start;
    margin: 6px 0 14px;
  }
  .why-card > div:not(.why-card-num) {
    order: 3;
  }
  .why-card > p {
    order: 4;
  }
}