/* ============================================================
   翎目知觉 EYASCLAW · 官网样式
   亮蓝科技风：云白底 + 亮蓝渐变 + 毛玻璃卡片 + 轻量动效
   面向政企客户：简洁、大气、克制
   ============================================================ */

:root {
  --bg: #f2f6fd;
  --bg-soft: #eaf1fb;
  --bg-card: rgba(255, 255, 255, 0.66);
  --bg-card-hover: rgba(255, 255, 255, 0.85);
  --line: rgba(23, 94, 208, 0.13);
  --line-strong: rgba(27, 109, 255, 0.32);
  --text: #0c1f40;
  --text-muted: #4a5f7d;
  --text-dim: #7d90ac;
  --blue: #1b6dff;
  --blue-deep: #0a4fd6;
  --cyan: #08a6e9;
  --grad: linear-gradient(120deg, #08a6e9 0%, #1b6dff 55%, #4f7bff 100%);
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-soft: 0 10px 34px rgba(23, 84, 196, 0.10);
  --shadow-glow: 0 8px 30px rgba(27, 109, 255, 0.22);
  --glass-blur: blur(18px) saturate(160%);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

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

/* 背景光晕（固定层，毛玻璃的底） */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(27, 109, 255, 0.13), transparent 62%),
    radial-gradient(760px 460px at -6% 26%, rgba(8, 166, 233, 0.10), transparent 60%),
    radial-gradient(860px 620px at 104% 88%, rgba(79, 123, 255, 0.09), transparent 60%),
    var(--bg);
}

/* 漂浮光斑（JS 视差驱动） */
.bg-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.5; will-change: transform; }
.orb-1 { width: 420px; height: 420px; left: -120px; top: 16%; background: radial-gradient(circle, rgba(27, 109, 255, 0.35), transparent 68%); animation: orbDrift 16s ease-in-out infinite; }
.orb-2 { width: 360px; height: 360px; right: -100px; top: 44%; background: radial-gradient(circle, rgba(8, 166, 233, 0.30), transparent 68%); animation: orbDrift 20s ease-in-out infinite reverse; }
.orb-3 { width: 460px; height: 460px; left: 32%; bottom: -180px; background: radial-gradient(circle, rgba(79, 123, 255, 0.26), transparent 68%); animation: orbDrift 24s ease-in-out infinite; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; }

.container { width: min(1180px, 92%); margin: 0 auto; }
.center { text-align: center; }

/* ---------- 毛玻璃卡片通用 ---------- */
.glass {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 11px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn-lg { padding: 14px 38px; font-size: 16px; }
.btn-sm { padding: 7px 18px; font-size: 13px; }
.btn-block { display: block; width: 100%; }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 6px 22px rgba(27, 109, 255, 0.35);
  background-size: 150% 150%;
  animation: gradShift 6s ease infinite;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 34px rgba(27, 109, 255, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--line-strong);
  color: var(--blue);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-glow);
}

/* ---------- 渐变文字 ---------- */
.grad-text {
  background: linear-gradient(120deg, #08a6e9, #1b6dff 60%, #4f7bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   顶部导航
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background 0.35s ease, padding 0.35s ease, box-shadow 0.35s ease;
}
.site-header.scrolled {
  padding: 10px 0;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 34px rgba(23, 84, 196, 0.10);
}

.nav-wrap { display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark { width: 40px; height: 40px; filter: drop-shadow(0 4px 10px rgba(27, 109, 255, 0.35)); }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 19px; letter-spacing: 0.12em; color: var(--text); }
.logo-text em {
  font-style: normal;
  font-size: 10.5px;
  letter-spacing: 0.42em;
  color: var(--blue);
  opacity: 0.9;
}

.main-nav { display: flex; gap: 6px; }
.main-nav a {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--text-muted);
  border-radius: 8px;
  transition: color 0.25s ease, background 0.25s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 2px;
  width: 0; height: 2.5px;
  background: var(--grad);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width 0.3s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--blue-deep); }
.main-nav a:hover::after, .main-nav a.active::after { width: 55%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero（左文案 + 右雷达态势面板）
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 150px 0 70px;
  overflow: hidden;
}
#particleNet {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.55;
}
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(27, 109, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 109, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  margin-bottom: 28px;
}
.hero-tag::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 0 4px rgba(27, 109, 255, 0.15);
}
.hero-title {
  font-size: clamp(40px, 5.6vw, 66px);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.22;
  color: var(--text);
}
.hero-sub {
  margin: 24px 0 38px;
  max-width: 560px;
  color: var(--text-muted);
  font-size: clamp(15px, 1.6vw, 17px);
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------- 城市低空态势场景（Hero 右侧 · 无边框全息） ---------- */
.scene-stage {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background:
    radial-gradient(360px 240px at 62% 26%, rgba(27, 109, 255, 0.14), transparent 60%),
    linear-gradient(180deg, #f7faff 0%, #e9f2fd 70%, rgba(223, 235, 251, 0.72) 100%);
  -webkit-mask-image: radial-gradient(ellipse 97% 97% at 50% 50%, #000 58%, transparent 97%);
  mask-image: radial-gradient(ellipse 97% 97% at 50% 50%, #000 58%, transparent 97%);
}
.scene-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(27, 109, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 109, 255, 0.06) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
  z-index: 1;
}
.scene-svg { width: 100%; height: auto; display: block; }

/* 场景元素（亮蓝配色） */
.sky-dot { fill: rgba(27, 109, 255, 0.4); }
.twinkle { animation: winFlick 3.4s ease-in-out infinite; }
.bldg-bg { fill: #dbe9fb; }
.bldg-fg { fill: #c8dcf6; }
.win { fill: #6aa5ff; opacity: 0.85; }
.win.warm { fill: #ffc76b; }
.win.flicker { animation: winFlick 4s steps(2, end) infinite; }
.beacon { fill: #ff8f8f; animation: winFlick 1.8s ease-in-out infinite; }

.drone-g { animation: floaty 5.5s ease-in-out infinite; }
.drone-g line, .drone-g rect, .drone-g path { stroke: #1b6dff; }
.rotor {
  fill: none;
  stroke: #4f8dff;
  stroke-width: 1.4;
  stroke-dasharray: 4 5;
  animation: spin 0.6s linear infinite;
}
.ring {
  fill: none;
  stroke: rgba(8, 166, 233, 0.75);
  stroke-width: 1.5;
  animation: blipPulse 2.8s ease-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}
.ring.d2 { animation-delay: 0.9s; }
.ring.d3 { animation-delay: 1.8s; }
.scan-cone { animation: scanPulse 3.2s ease-in-out infinite; }
.ground-glow { animation: scanPulse 3.2s ease-in-out infinite; }
.f-path { fill: none; stroke: #1b8fe8; stroke-width: 1.6; stroke-dasharray: 5 7; animation: dashFlow 2.6s linear infinite; }
.target { fill: none; stroke: #0aa2e8; stroke-width: 1.5; }
.t-tag { fill: #1273d6; font-size: 9px; font-family: Consolas, monospace; letter-spacing: 0.08em; }
.t-blink { animation: winFlick 1.6s steps(2, end) infinite; }

/* 悬浮 HUD 标签 */
.hud-chip {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(27, 109, 255, 0.22);
  box-shadow: 0 8px 22px rgba(23, 84, 196, 0.16);
  font-size: 12px;
  font-weight: 600;
  color: #123a75;
  letter-spacing: 0.04em;
  animation: floaty 6s ease-in-out infinite;
}
.hud-chip svg { width: 15px; height: 15px; color: var(--blue); fill: none; stroke: currentColor; }
.mini-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #16c47a;
  animation: pulseDot 2s ease-out infinite;
}
.hud-1 { top: 11%; left: 5%; }
.hud-2 { top: 42%; right: 4%; animation-delay: 1.3s; }
.hud-3 { bottom: 15%; left: 8%; animation-delay: 2.4s; }

/* ---------- 雷达插画（首页重点产品卡 / 产品页用） ---------- */
.radar-wrap { position: relative; aspect-ratio: 1 / 1; max-width: 400px; margin: 12px auto 6px; }
.radar-svg { width: 100%; height: 100%; color: var(--blue); display: block; }
.radar-svg circle, .radar-svg line, .radar-svg path, .radar-svg polygon, .radar-svg polyline {
  fill: none;
  stroke: currentColor;
  vector-effect: non-scaling-stroke;
}
.radar-svg .r-ring { stroke-width: 1; opacity: 0.28; }
.radar-svg .r-cross { stroke-width: 1; opacity: 0.16; stroke-dasharray: 3 6; }
.radar-svg .geo-fence { stroke: #ff8f3c; stroke-width: 1.6; stroke-dasharray: 7 6; opacity: 0.85; animation: dashFlow 3.2s linear infinite; }
.radar-svg .flight-path { stroke-width: 2; stroke-dasharray: 5 7; animation: dashFlow 2.4s linear infinite; }
.radar-svg .fp-b { animation-delay: -1.2s; opacity: 0.75; }
.radar-svg .blip { fill: currentColor; stroke: none; }
.radar-svg .blip-ring { stroke: currentColor; stroke-width: 1.5; animation: blipPulse 2.6s ease-out infinite; transform-box: fill-box; transform-origin: center; }
.radar-svg .blip-ring.d2 { animation-delay: 0.9s; }
.radar-svg .blip-ring.d3 { animation-delay: 1.7s; }
.radar-svg .center-dot { fill: currentColor; stroke: none; }
.radar-sweep {
  position: absolute;
  left: 6.25%; top: 6.25%;
  width: 87.5%; height: 87.5%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(27, 109, 255, 0.32), rgba(27, 109, 255, 0.06) 52deg, transparent 56deg);
  animation: sweep 4.5s linear infinite;
  mix-blend-mode: multiply;
}

/* ---------- 能力词条（替代数字数据条） ---------- */
.cap-strip {
  position: relative;
  z-index: 1;
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.cap-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cap-chip:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.cap-chip svg { flex: none; width: 26px; height: 26px; color: var(--blue); fill: none; stroke: currentColor; }
.cap-chip b { display: block; font-size: 15.5px; color: var(--text); }
.cap-chip span { display: block; font-size: 12px; color: var(--text-dim); letter-spacing: 0.06em; }

/* ============================================================
   通用 Section
   ============================================================ */
.section { padding: 96px 0; }
.section-alt {
  background: linear-gradient(180deg, rgba(234, 241, 251, 0.75), rgba(242, 246, 253, 0.35));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head { text-align: center; margin-bottom: 56px; }
.section-kicker {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: 0.5em;
  color: var(--blue);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  color: var(--text);
}
.section-head > p { color: var(--text-muted); }

/* ---------- 能力卡片 ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.tech-card {
  position: relative;
  padding: 34px 26px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  overflow: hidden;
}
.tech-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.tech-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 50px rgba(23, 84, 196, 0.18);
}
.tech-card:hover::before { opacity: 1; }

.tech-icon {
  width: 54px; height: 54px;
  margin-bottom: 20px;
  color: var(--blue);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(27, 109, 255, 0.10), rgba(8, 166, 233, 0.06));
}
.tech-icon svg { width: 30px; height: 30px; fill: none; stroke: currentColor; }
.tech-card h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: 0.05em; color: var(--text); }
.tech-card p { font-size: 14px; color: var(--text-muted); }

/* ============================================================
   平台矩阵：重点平台 + 平台卡片
   ============================================================ */
.plat-feature {
  position: relative;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: center;
  padding: 42px 44px;
  margin-bottom: 26px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 26px 64px rgba(23, 84, 196, 0.16);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  overflow: hidden;
}
.plat-feature::after {
  content: "";
  position: absolute;
  right: -140px; top: -140px;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(27, 109, 255, 0.14), transparent 65%);
  pointer-events: none;
}
.pf-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 16px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: #fff;
  background: var(--grad);
  box-shadow: 0 4px 14px rgba(27, 109, 255, 0.35);
  margin-bottom: 16px;
}
.pf-info h3, .plat-feature h3 {
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  color: var(--text);
}
.pf-desc { color: var(--text-muted); margin-bottom: 22px; }
.pf-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.pf-tag {
  font-size: 12.5px;
  color: var(--blue-deep);
  background: rgba(27, 109, 255, 0.08);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 14px;
  transition: background 0.25s ease, transform 0.25s ease;
}
.pf-tag:hover { background: rgba(27, 109, 255, 0.16); transform: translateY(-2px); }

.plat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.plat-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.plat-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 50px rgba(23, 84, 196, 0.18);
}

.plat-visual {
  height: 170px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.plat-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(27, 109, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 109, 255, 0.08) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: radial-gradient(circle at 50% 55%, #000 20%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 55%, #000 20%, transparent 72%);
}
.pv-ai   { background: radial-gradient(circle at 50% 125%, rgba(27, 109, 255, 0.20), transparent 65%), linear-gradient(180deg, rgba(233, 242, 255, 0.6), rgba(214, 228, 252, 0.9)); color: #1b6dff; }
.pv-data { background: radial-gradient(circle at 50% 125%, rgba(8, 166, 233, 0.20), transparent 65%), linear-gradient(180deg, rgba(228, 244, 254, 0.6), rgba(209, 234, 252, 0.9)); color: #0891d4; }
.pv-iot  { background: radial-gradient(circle at 50% 125%, rgba(79, 123, 255, 0.20), transparent 65%), linear-gradient(180deg, rgba(232, 237, 255, 0.6), rgba(216, 224, 254, 0.9)); color: #4f7bff; }
.pv-twin { background: radial-gradient(circle at 50% 125%, rgba(6, 182, 212, 0.18), transparent 65%), linear-gradient(180deg, rgba(224, 247, 250, 0.6), rgba(207, 240, 248, 0.9)); color: #0e9bb5; }

.plat-svg { width: 118px; height: auto; fill: none; stroke: currentColor; animation: floaty 6s ease-in-out infinite; }
.plat-svg circle, .plat-svg path, .plat-svg rect, .plat-svg line, .plat-svg polyline, .plat-svg polygon { vector-effect: non-scaling-stroke; }
.plat-svg .dash-line { stroke-dasharray: 4 6; animation: dashFlow 2.8s linear infinite; }
.plat-svg .solid { fill: rgba(27, 109, 255, 0.10); }

.plat-info { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.plat-info h3 { font-size: 19px; margin-bottom: 8px; color: var(--text); }
.plat-info > p { font-size: 13.5px; color: var(--text-muted); flex: 1; }
.plat-info .more { margin-top: 14px; font-size: 13px; color: var(--blue); font-weight: 600; }

/* ---------- 产品详情行（产品页） ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 44px 0;
  border-bottom: 1px dashed var(--line);
}
.product-detail:last-of-type { border-bottom: 0; }
.pd-reverse .pd-visual { order: 2; }
.pd-visual {
  height: 320px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.9);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.pd-visual .plat-svg { width: 190px; }
.pd-visual.pv-radar { background: radial-gradient(circle at 50% 120%, rgba(27, 109, 255, 0.22), transparent 62%), linear-gradient(180deg, rgba(233, 242, 255, 0.55), rgba(219, 232, 252, 0.92)); color: var(--blue); }
.pd-info .product-tag { margin-bottom: 14px; }
.pd-info h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  color: var(--text);
}
.pd-desc { color: var(--text-muted); margin-bottom: 24px; }
.pd-tags { display: flex; flex-wrap: wrap; gap: 10px; }

.product-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--blue-deep);
  border: 1px solid var(--line-strong);
  background: rgba(27, 109, 255, 0.07);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 12px;
}
.pd-tags .pf-tag, .product-tag { margin-bottom: 0; }
.pd-tags { margin-bottom: 0; }

/* ============================================================
   解决方案
   ============================================================ */
.solution-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.solution-chip {
  padding: 26px 20px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  text-align: center;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.solution-chip:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-glow);
}
.solution-chip b { display: block; font-size: 18px; margin-bottom: 6px; color: var(--text); }
.solution-chip span { font-size: 13px; color: var(--text-muted); }

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.solution-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.solution-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 50px rgba(23, 84, 196, 0.18);
}
.sol-icon {
  width: 52px; height: 52px;
  color: var(--blue);
  margin-bottom: 18px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: linear-gradient(135deg, rgba(27, 109, 255, 0.10), rgba(8, 166, 233, 0.06));
}
.sol-icon svg { width: 28px; height: 28px; fill: none; stroke: currentColor; }
.solution-card h3 { font-size: 20px; margin-bottom: 10px; color: var(--text); }
.solution-card > p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.solution-card ul { border-top: 1px dashed var(--line); padding-top: 14px; }
.solution-card li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.solution-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--grad);
}

/* ============================================================
   新闻
   ============================================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 44px;
}
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.news-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 50px rgba(23, 84, 196, 0.18);
}
.news-cover { height: 172px; overflow: hidden; }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-cover img { transform: scale(1.06); }
.news-cover-ph {
  display: grid;
  place-items: center;
  color: rgba(27, 109, 255, 0.6);
  background:
    radial-gradient(circle at 50% 130%, rgba(27, 109, 255, 0.16), transparent 60%),
    linear-gradient(180deg, rgba(233, 242, 255, 0.8), rgba(214, 228, 252, 0.95));
}
.news-cover-ph svg { width: 92px; height: 74px; fill: none; stroke: currentColor; animation: floaty 5s ease-in-out infinite; }

.news-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.news-meta time { font-size: 12.5px; color: var(--text-dim); }
.news-cat {
  font-size: 12px;
  color: var(--blue-deep);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 2px 10px;
  background: rgba(27, 109, 255, 0.07);
}
.news-pin {
  font-size: 12px;
  color: #c07807;
  border: 1px solid rgba(208, 132, 30, 0.4);
  border-radius: 999px;
  padding: 2px 10px;
  background: rgba(255, 181, 40, 0.12);
}
.news-body h3 {
  font-size: 17.5px;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--text);
  transition: color 0.25s ease;
}
.news-card:hover h3 { color: var(--blue); }
.news-body p {
  font-size: 13.5px;
  color: var(--text-muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more { font-size: 13px; color: var(--blue); margin-top: 14px; }

.empty-tip { text-align: center; color: var(--text-muted); padding: 60px 0; }

/* 新闻筛选 */
.news-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}
.news-filter a {
  padding: 7px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.5);
  transition: all 0.25s ease;
}
.news-filter a:hover { color: var(--blue-deep); border-color: var(--line-strong); }
.news-filter a.active {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  font-weight: 600;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.pagination a, .pagination .ellipsis {
  min-width: 40px;
  padding: 8px 14px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.55);
  transition: all 0.25s ease;
}
.pagination a:hover { color: var(--blue-deep); border-color: var(--line-strong); }
.pagination a.active {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  font-weight: 700;
}
.pagination .ellipsis { border: none; background: none; }

/* ============================================================
   页头 / 新闻详情
   ============================================================ */
.page-hero {
  padding: 168px 0 72px;
  text-align: center;
  background:
    radial-gradient(640px 320px at 50% 0%, rgba(27, 109, 255, 0.12), transparent 70%),
    linear-gradient(180deg, rgba(233, 242, 255, 0.55), transparent);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-size: clamp(30px, 4.6vw, 46px); letter-spacing: 0.1em; margin-bottom: 14px; color: var(--text); }
.page-hero > .container > p:not(.section-kicker):not(.breadcrumb) { color: var(--text-muted); }
.page-hero-compact { padding: 148px 0 54px; text-align: left; }

.breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--blue); }

.news-detail-title { font-size: clamp(24px, 3.4vw, 36px) !important; line-height: 1.45; }
.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.news-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}
.news-article {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 40px 44px;
}
.news-detail-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 28px; }

.markdown-body { font-size: 15.5px; color: #33465f; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  color: var(--text);
  margin: 1.5em 0 0.6em;
  letter-spacing: 0.05em;
}
.markdown-body h2 {
  padding-left: 14px;
  border-left: 3px solid var(--blue);
  font-size: 21px;
}
.markdown-body h3 { font-size: 18px; }
.markdown-body p { margin: 0.85em 0; }
.markdown-body ul, .markdown-body ol { margin: 0.85em 0; padding-left: 1.4em; }
.markdown-body li { margin: 0.35em 0; }
.markdown-body ul { list-style: none; }
.markdown-body ul li::before { content: "▹ "; color: var(--blue); }
.markdown-body strong { color: var(--text); }
.markdown-body a { color: var(--blue); }
.markdown-body blockquote {
  border-left: 3px solid var(--line-strong);
  background: rgba(27, 109, 255, 0.06);
  padding: 12px 18px;
  border-radius: 0 10px 10px 0;
  margin: 1em 0;
  color: var(--text-muted);
}
.markdown-body code {
  background: rgba(27, 109, 255, 0.08);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
  color: var(--blue-deep);
}
.markdown-body pre {
  background: #0d1f3c;
  border: 1px solid rgba(27, 109, 255, 0.25);
  border-radius: 10px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 1em 0;
  color: #d6e6ff;
}
.markdown-body pre code { background: none; padding: 0; color: inherit; }
.markdown-body img { border-radius: 10px; margin: 1em auto; }
.markdown-body hr { border: none; border-top: 1px dashed var(--line); margin: 2em 0; }

.news-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px dashed var(--line);
}
.np-link {
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.5);
  transition: border-color 0.25s ease, background 0.25s ease;
}
.np-link:hover { border-color: var(--line-strong); background: rgba(255, 255, 255, 0.85); }
.np-link span { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 4px; }
.np-link b { font-size: 14px; font-weight: 600; color: var(--text); }
.np-next { text-align: right; }

.news-aside { position: sticky; top: 100px; }
.aside-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 26px;
  margin-bottom: 22px;
}
.aside-card h3 { font-size: 17px; margin-bottom: 16px; color: var(--text); }
.aside-news {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}
.aside-news:last-child { border-bottom: 0; }
.aside-news b { font-size: 14px; font-weight: 500; line-height: 1.5; color: var(--text); transition: color 0.25s; }
.aside-news:hover b { color: var(--blue); }
.aside-news time { font-size: 12px; color: var(--text-dim); }
.aside-contact p { font-size: 13.5px; color: var(--text-muted); margin-bottom: 10px; }
.aside-mail { color: var(--blue) !important; }
.aside-contact .btn { margin-top: 8px; }

/* ============================================================
   关于我们
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-intro h2 {
  position: relative;
  font-size: clamp(24px, 2.8vw, 30px);
  letter-spacing: 0.06em;
  color: var(--text);
  padding-left: 18px;
}
.about-intro h2::before {
  content: "";
  position: absolute;
  left: 0; top: 9px; bottom: 9px;
  width: 4px;
  border-radius: 2px;
  background: var(--grad);
}
.about-en {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--blue);
  letter-spacing: 0.32em;
  font-size: 12.5px;
  margin: 10px 0 26px;
}
.about-en::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}
.about-lead {
  font-size: 16.5px;
  color: var(--text);
  line-height: 1.9;
  margin-bottom: 14px;
}
.about-intro p { color: var(--text-muted); margin-bottom: 14px; line-height: 1.9; }
.about-intro b { color: var(--blue-deep); font-weight: 600; }

/* 使命 / 愿景 / 价值观：三列图标卡 */
.about-values { margin-top: 32px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.about-values > div {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 20px 18px 18px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.about-values > div:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-glow);
}
.v-icon {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  color: var(--blue);
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(27, 109, 255, 0.10), rgba(8, 166, 233, 0.06));
  margin-bottom: 4px;
}
.v-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; }
.about-values b { font-size: 13px; letter-spacing: 0.32em; color: var(--blue); }
.about-values > div > span:last-child { font-size: 13px; color: var(--text-muted); line-height: 1.65; }

/* 企业信息 / 业务方向卡 */
.info-card {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 24px 26px;
  margin-bottom: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.info-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  opacity: 0.3;
  transition: opacity 0.3s ease;
}
.info-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(23, 84, 196, 0.15); }
.info-card:hover::before { opacity: 1; }
.info-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15.5px;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  color: var(--text);
}
.info-card h3 svg { width: 20px; height: 20px; color: var(--blue); fill: none; stroke: currentColor; }
.info-card dl { display: grid; grid-template-columns: 84px 1fr; gap: 13px 14px; }
.info-card dt { color: var(--text-dim); font-size: 12.5px; letter-spacing: 0.1em; padding-top: 2px; }
.info-card dd { font-size: 13.5px; color: var(--text); line-height: 1.7; }
.info-card dd.addr { color: var(--text-muted); font-size: 13px; }
.dd-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.dd-chip {
  display: inline-block;
  font-size: 12px;
  padding: 2.5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--blue-deep);
  background: rgba(27, 109, 255, 0.07);
}
.dd-chip.core {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 3px 10px rgba(27, 109, 255, 0.3);
}

/* ---------- 服务体系（关于页交付流程） ---------- */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
}
.svc-grid::before {
  content: "";
  position: absolute;
  top: 50%; left: 3%; right: 3%;
  border-top: 2px dashed var(--line-strong);
  z-index: 0;
}
.svc-card {
  position: relative;
  z-index: 1;
  padding: 30px 24px;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.svc-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 50px rgba(23, 84, 196, 0.18);
}
.svc-icon {
  width: 52px; height: 52px;
  color: var(--blue);
  margin-bottom: 16px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background: linear-gradient(135deg, rgba(27, 109, 255, 0.10), rgba(8, 166, 233, 0.06));
}
.svc-icon svg { width: 28px; height: 28px; fill: none; stroke: currentColor; }
.svc-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); letter-spacing: 0.05em; }
.svc-card p { font-size: 13.5px; color: var(--text-muted); }

/* 时间线 */
.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 26px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--blue), #4f7bff);
  opacity: 0.45;
  border-radius: 2px;
}
.tl-item { position: relative; padding: 0 0 38px 26px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item time {
  font-size: 21px;
  font-weight: 800;
  background: linear-gradient(120deg, #08a6e9, #1b6dff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tl-dot {
  position: absolute;
  left: -26px; top: 40px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--blue);
  box-shadow: 0 0 0 5px rgba(27, 109, 255, 0.14);
}
.tl-body h4 { font-size: 17px; margin: 10px 0 6px; color: var(--text); }
.tl-body p { font-size: 14px; color: var(--text-muted); }

/* ============================================================
   联系我们
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 44px;
  align-items: start;
}
.contact-info h2, .contact-form-card h2 { font-size: 24px; margin-bottom: 26px; color: var(--text); }
.contact-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}
.contact-item:last-child { border-bottom: 0; }
.ci-icon {
  flex: none;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  color: var(--blue);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(27, 109, 255, 0.10), rgba(8, 166, 233, 0.06));
}
.ci-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; }
.contact-item h4 { font-size: 15px; margin-bottom: 4px; color: var(--text); }
.contact-item p { font-size: 13.5px; color: var(--text-muted); }

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 38px 40px;
}
.form-tip { font-size: 13.5px; color: var(--text-muted); margin: -16px 0 24px; }

/* ---------- 表单（前后台通用） ---------- */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 14.5px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(27, 109, 255, 0.14);
  background: #fff;
}
.form-group textarea { resize: vertical; min-height: 44px; }
.form-group .mono { font-family: "Cascadia Code", Consolas, "JetBrains Mono", monospace; font-size: 13.5px; line-height: 1.8; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 2fr; gap: 18px; }
.form-checks { display: flex; gap: 28px; margin: 26px 0; flex-wrap: wrap; }
.form-check { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; color: var(--text-muted); }
.form-check input { width: 16px; height: 16px; accent-color: var(--blue); cursor: pointer; }
.form-actions { text-align: center; }

/* ============================================================
   CTA / 页脚 / 其他
   ============================================================ */
.cta-band {
  padding: 84px 0;
  background:
    radial-gradient(720px 320px at 50% 130%, rgba(27, 109, 255, 0.4), transparent 70%),
    linear-gradient(135deg, #081c3a 0%, #0d2f63 60%, #123a7d 100%);
  border-top: 1px solid rgba(27, 109, 255, 0.3);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(8, 166, 233, 0.25), transparent 65%);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  position: relative;
}
.cta-inner h2 { font-size: clamp(24px, 3.4vw, 34px); letter-spacing: 0.08em; margin-bottom: 8px; color: #fff; }
.cta-inner p { color: rgba(214, 230, 255, 0.8); }

.site-footer {
  border-top: 1px solid rgba(27, 109, 255, 0.25);
  background: linear-gradient(180deg, #0a2148 0%, #071a39 100%);
  color: #c3d5ef;
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.7fr 1.3fr;
  gap: 44px;
  padding-bottom: 48px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo b { font-size: 17px; letter-spacing: 0.1em; color: #fff; }
.footer-brand > p { font-size: 13.5px; color: #9db6da; max-width: 380px; }
.footer-domain { color: #6fb0ff !important; letter-spacing: 0.12em; margin-top: 10px; }
.footer-col h4 {
  font-size: 15px;
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  color: #fff;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 13.5px;
  color: #9db6da;
  margin-bottom: 10px;
  transition: color 0.25s ease;
}
.footer-col a:hover { color: #6fb0ff; }
.footer-addr { line-height: 1.8; }

.footer-bottom { border-top: 1px solid rgba(111, 176, 255, 0.16); padding: 20px 0; }
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #86a2cc;
}
.footer-bottom a { color: #86a2cc; }
.footer-bottom a:hover { color: #6fb0ff; }

/* Flash 消息 */
.flash-wrap { margin-top: 86px; }
.flash {
  padding: 13px 22px;
  border-radius: 12px;
  margin-bottom: 12px;
  font-size: 14.5px;
  border: 1px solid var(--line-strong);
  background: rgba(27, 109, 255, 0.08);
  color: var(--text);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.flash-error { border-color: rgba(220, 76, 92, 0.45); background: rgba(220, 76, 92, 0.09); }
.flash-success { border-color: rgba(22, 168, 124, 0.45); background: rgba(22, 168, 124, 0.09); }

/* 404 */
.error-page { min-height: 72vh; display: grid; place-items: center; text-align: center; padding-top: 120px; }
.error-code {
  font-size: clamp(90px, 16vw, 170px);
  font-weight: 800;
  letter-spacing: 0.06em;
  background: linear-gradient(120deg, #08a6e9, #1b6dff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.error-eye {
  display: inline-block;
  border: 6px solid rgba(27, 109, 255, 0.25);
  border-radius: 50%;
  animation: floaty 3s ease-in-out infinite;
}
.error-page h1 { font-size: 24px; margin: 8px 0 12px; color: var(--text); }
.error-page p { color: var(--text-muted); margin-bottom: 30px; }

/* 返回顶部 */
.back-top {
  position: fixed;
  right: 26px; bottom: 30px;
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
  color: var(--blue);
  font-size: 15px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: all 0.35s ease;
  z-index: 90;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-soft);
}
.back-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover { box-shadow: var(--shadow-glow); }

/* ============================================================
   动效关键帧
   ============================================================ */
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes sweep { to { transform: rotate(360deg); } }
@keyframes dashFlow { to { stroke-dashoffset: -26; } }
@keyframes blipPulse {
  0% { transform: scale(0.6); opacity: 0.9; }
  70% { transform: scale(1.9); opacity: 0; }
  100% { transform: scale(1.9); opacity: 0; }
}
@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(22, 196, 122, 0.5); }
  70% { box-shadow: 0 0 0 9px rgba(22, 196, 122, 0); }
  100% { box-shadow: 0 0 0 0 rgba(22, 196, 122, 0); }
}
@keyframes orbDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, -40px) scale(1.12); }
}
@keyframes winFlick { 0%, 100% { opacity: 0.85; } 50% { opacity: 0.25; } }
@keyframes scanPulse { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }
@keyframes gradShift { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
@keyframes spin { to { stroke-dashoffset: -140; } }

/* ============================================================
   滚动显现动画
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .tech-grid, .plat-grid, .solution-grid, .news-grid, .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-grid::before { display: none; }
  .solution-strip { grid-template-columns: repeat(3, 1fr); }
  .cap-strip { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .scene-stage { max-width: 520px; margin: 0 auto; }
  .about-grid, .contact-grid, .news-layout { grid-template-columns: 1fr; }
  .news-aside { position: static; }
  .plat-feature { grid-template-columns: 1fr; padding: 32px 28px; }
  .product-detail { gap: 30px; }
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .page-hero { padding: 130px 0 52px; }

  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 64px; left: 4%; right: 4%;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px;
    display: none;
    box-shadow: 0 24px 60px rgba(23, 84, 196, 0.2);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 18px; font-size: 16px; }

  .tech-grid, .plat-grid, .solution-grid, .news-grid, .svc-grid,
  .solution-strip, .cap-strip, .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .hud-2, .hud-3 { display: none; }
  .product-detail { grid-template-columns: 1fr; padding: 32px 0; }
  .pd-reverse .pd-visual { order: 0; }
  .br-lg { display: none; }
  .hero { min-height: auto; padding-top: 120px; }
  .cap-strip { margin-top: 48px; }
  .news-article { padding: 28px 22px; }
  .news-pager { grid-template-columns: 1fr; }
  .contact-form-card { padding: 28px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}