/* ============================================
   福州富易德科技有限公司 — 官网样式
   风格：未来科技感 / Cyber-Tech
   ============================================ */

:root {
  /* 品牌色（保留） */
  --primary: #FF6B35;
  --primary-dark: #E2551C;

  /* 科技色系 */
  --neon-cyan: #22E1FF;
  --neon-blue: #3B82F6;
  --neon-violet: #8B5CF6;
  --neon-mint: #00FFB2;
  --accent: #22E1FF;

  /* 暗色底 */
  --bg: #04060D;
  --bg-soft: #080D1A;
  --panel: rgba(13, 22, 40, 0.62);
  --panel-solid: #0B1424;
  --line: rgba(34, 225, 255, 0.16);
  --line-strong: rgba(34, 225, 255, 0.42);

  /* 文本 */
  --ink: #E6F2FF;
  --ink-soft: #8AA3C4;
  --ink-dim: #5C7291;
  --white: #ffffff;

  --radius-lg: 18px;
  --radius-md: 12px;

  /* 光晕 */
  --glow-cyan: 0 0 24px rgba(34, 225, 255, 0.35);
  --glow-cyan-strong: 0 0 46px rgba(34, 225, 255, 0.55);
  --glow-orange: 0 0 30px rgba(255, 107, 53, 0.45);
  --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.55);
  --shadow-hover: 0 26px 70px rgba(0, 0, 0, 0.7), 0 0 34px rgba(34, 225, 255, 0.22);

  /* 渐变 */
  --grad-main: linear-gradient(120deg, #FF9A4D 0%, #FF6B35 55%, #E2551C 100%);
  --grad-tech: linear-gradient(120deg, #22E1FF 0%, #3B82F6 50%, #8B5CF6 100%);
  --grad-hybrid: linear-gradient(120deg, #22E1FF 0%, #6EA8FF 40%, #FF6B35 100%);
  --grad-soft: linear-gradient(120deg, rgba(34, 225, 255, 0.14), rgba(139, 92, 246, 0.14), rgba(255, 107, 53, 0.12));

  --font-display: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", "Cascadia Code", Consolas, "Courier New", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-display);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: rgba(34, 225, 255, 0.35); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #04060D; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #22E1FF, #8B5CF6);
  border-radius: 10px;
  border: 2px solid #04060D;
}

.container {
  width: min(1160px, 92%);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

/* ============================================
   全局科技氛围层
   ============================================ */

/* 网格背景 */
.tech-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 225, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 225, 255, 0.055) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 100%);
  animation: gridDrift 24s linear infinite;
}

@keyframes gridDrift {
  0% { background-position: 0 0, 0 0; }
  100% { background-position: 62px 62px, 62px 62px; }
}

/* 极光辉光 */
.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.aurora span {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
}
.aurora .a1 {
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(34, 225, 255, 0.55), transparent 70%);
  top: -260px; right: -180px;
  animation: auroraFloat 18s ease-in-out infinite;
}
.aurora .a2 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.5), transparent 70%);
  bottom: -220px; left: -200px;
  animation: auroraFloat 22s ease-in-out infinite reverse;
}
.aurora .a3 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.34), transparent 70%);
  top: 42%; left: 46%;
  animation: auroraFloat 26s ease-in-out infinite;
}

@keyframes auroraFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-60px, 50px) scale(1.18); }
}

/* 扫描线 */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(34, 225, 255, 0.028) 0px,
    rgba(34, 225, 255, 0.028) 1px,
    transparent 1px,
    transparent 4px
  );
  mix-blend-mode: screen;
  opacity: 0.7;
}

/* 顶部扫描光束 */
.scan-beam {
  position: fixed;
  left: 0; right: 0;
  height: 2px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(34, 225, 255, 0.85), transparent);
  box-shadow: 0 0 22px rgba(34, 225, 255, 0.7);
  animation: beamSweep 7s ease-in-out infinite;
  opacity: 0.55;
}

@keyframes beamSweep {
  0% { top: 0%; opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { top: 100%; opacity: 0; }
}

/* 粒子画布 */
.tech-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* ============================================
   顶部导航
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(4, 6, 13, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.navbar::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 225, 255, 0.75), rgba(255, 107, 53, 0.6), transparent);
  opacity: 0.85;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.5px;
  color: var(--ink);
}

.logo-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 0 14px rgba(34, 225, 255, 0.55));
}

.logo-mark svg { display: block; border-radius: 12px; }

.logo-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--neon-cyan);
  letter-spacing: 2.4px;
  opacity: 0.9;
}

.nav-links {
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav-links a {
  position: relative;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: all 0.25s ease;
  border: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--neon-cyan);
  background: rgba(34, 225, 255, 0.07);
  border-color: var(--line);
  box-shadow: inset 0 0 18px rgba(34, 225, 255, 0.08);
}

.nav-links a.active {
  color: var(--neon-cyan);
  background: rgba(34, 225, 255, 0.1);
  border-color: var(--line-strong);
  box-shadow: var(--glow-cyan), inset 0 0 22px rgba(34, 225, 255, 0.1);
}

.nav-cta {
  background: var(--grad-main);
  color: #fff !important;
  padding: 9px 22px !important;
  border-radius: 8px;
  font-weight: 600;
  border: none !important;
  box-shadow: var(--glow-orange);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(255, 107, 53, 0.7);
  background: var(--grad-main);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px; height: 2.5px;
  background: var(--neon-cyan);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(34, 225, 255, 0.8);
  transition: all 0.3s ease;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding: 118px 0 140px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(760px 480px at 84% 8%, rgba(34, 225, 255, 0.16), transparent 66%),
    radial-gradient(720px 520px at 6% 92%, rgba(139, 92, 246, 0.16), transparent 66%),
    radial-gradient(560px 420px at 52% 2%, rgba(255, 107, 53, 0.12), transparent 62%);
}

/* 透视地面网格 */
.hero::after {
  content: "";
  position: absolute;
  left: -25%;
  right: -25%;
  bottom: -60px;
  height: 300px;
  z-index: 0;
  background-image:
    linear-gradient(rgba(34, 225, 255, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 225, 255, 0.22) 1px, transparent 1px);
  background-size: 70px 44px;
  transform: perspective(320px) rotateX(64deg);
  transform-origin: bottom center;
  mask-image: linear-gradient(to top, #000 5%, transparent 88%);
  -webkit-mask-image: linear-gradient(to top, #000 5%, transparent 88%);
  animation: floorScroll 3.6s linear infinite;
  opacity: 0.75;
  pointer-events: none;
}

@keyframes floorScroll {
  0% { background-position: 0 0, 0 0; }
  100% { background-position: 0 44px, 0 0; }
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.42;
  z-index: 0;
  animation: float 11s ease-in-out infinite;
}
.blob-1 { width: 340px; height: 340px; background: rgba(34, 225, 255, 0.55); top: -90px; right: -70px; }
.blob-2 { width: 280px; height: 280px; background: rgba(139, 92, 246, 0.5); bottom: -70px; left: -50px; animation-delay: -4s; }
.blob-3 { width: 200px; height: 200px; background: rgba(255, 107, 53, 0.42); top: 38%; left: 44%; animation-delay: -2s; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-26px) scale(1.06); }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.tagline {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(34, 225, 255, 0.07);
  border: 1px solid var(--line-strong);
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 1px;
  padding: 7px 18px;
  border-radius: 6px;
  margin-bottom: 24px;
  box-shadow: inset 0 0 22px rgba(34, 225, 255, 0.1), 0 0 20px rgba(34, 225, 255, 0.12);
  position: relative;
}

.tagline .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.72); }
}

.hero h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.5rem);
  font-weight: 900;
  line-height: 1.22;
  margin-bottom: 22px;
  letter-spacing: -0.5px;
  text-shadow: 0 0 60px rgba(34, 225, 255, 0.22);
}

.grad-text {
  background: var(--grad-hybrid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  background-size: 200% 200%;
  animation: gradShift 6s ease infinite;
}

@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero p.lead {
  font-size: 1.04rem;
  color: var(--ink-soft);
  max-width: 520px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.98rem;
  transition: all 0.28s ease;
  cursor: pointer;
  border: none;
  overflow: hidden;
  letter-spacing: 0.4px;
}

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: var(--glow-orange);
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-22deg);
  transition: left 0.65s ease;
}
.btn-primary:hover::after { left: 140%; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 48px rgba(255, 107, 53, 0.75); }

.btn-ghost {
  background: rgba(34, 225, 255, 0.05);
  color: var(--neon-cyan);
  border: 1px solid var(--line-strong);
  box-shadow: inset 0 0 22px rgba(34, 225, 255, 0.08);
}
.btn-ghost:hover {
  border-color: var(--neon-cyan);
  color: #fff;
  background: rgba(34, 225, 255, 0.14);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan-strong);
}

/* Hero 视觉卡片 */
.hero-visual {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.float-card {
  position: relative;
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.float-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
  background: rgba(16, 30, 52, 0.72);
}

.float-card .icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  background: rgba(34, 225, 255, 0.08);
}
.icon-1 { background: rgba(34, 225, 255, 0.1); border-color: rgba(34, 225, 255, 0.3); }
.icon-2 { background: rgba(59, 130, 246, 0.1); border-color: rgba(59, 130, 246, 0.32); }
.icon-3 { background: rgba(139, 92, 246, 0.1); border-color: rgba(139, 92, 246, 0.32); }
.icon-4 { background: rgba(255, 107, 53, 0.12); border-color: rgba(255, 107, 53, 0.35); }

.float-card h3 { font-size: 0.97rem; margin-bottom: 4px; color: var(--ink); }
.float-card p { font-size: 0.79rem; color: var(--ink-soft); line-height: 1.55; }

.float-card:nth-child(1) { animation: float 7.5s ease-in-out infinite; }
.float-card:nth-child(4) { animation: float 8.5s ease-in-out infinite reverse; }

/* ============================================
   通用 Section
   ============================================ */
section { padding: 92px 0; position: relative; z-index: 2; }

.section-head { text-align: center; max-width: 660px; margin: 0 auto 56px; }

.section-head .kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--neon-cyan);
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 4px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(34, 225, 255, 0.06);
  text-shadow: 0 0 14px rgba(34, 225, 255, 0.6);
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.4px;
}

.section-head p { color: var(--ink-soft); }

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

.service-card {
  position: relative;
  background: var(--panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

/* 顶部光束 */
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-tech);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s ease;
  box-shadow: 0 0 18px rgba(34, 225, 255, 0.8);
  z-index: 2;
}

/* 角落光晕 */
.service-card::after {
  content: "";
  position: absolute;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 225, 255, 0.16), transparent 70%);
  top: -120px; right: -120px;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover::after { opacity: 1; }

.service-card .num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--neon-cyan);
  letter-spacing: 3px;
  opacity: 0.75;
  text-shadow: 0 0 14px rgba(34, 225, 255, 0.6);
}

.service-card .icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  margin: 14px 0 20px;
  border: 1px solid var(--line);
  position: relative;
}

.service-card h3 { font-size: 1.18rem; margin-bottom: 10px; position: relative; z-index: 1; }
.service-card p { color: var(--ink-soft); font-size: 0.93rem; margin-bottom: 16px; position: relative; z-index: 1; }

.service-card ul { position: relative; z-index: 1; }

.service-card ul li {
  position: relative;
  padding-left: 22px;
  font-size: 0.87rem;
  color: var(--ink-soft);
  margin-bottom: 7px;
}
.service-card ul li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--neon-cyan);
  font-size: 0.8rem;
  top: 0;
  text-shadow: 0 0 10px rgba(34, 225, 255, 0.8);
}

/* ============================================
   优势 / 技术底座
   ============================================ */
.why-band {
  background: linear-gradient(135deg, rgba(12, 24, 44, 0.9), rgba(8, 14, 28, 0.92));
  color: #fff;
  border-radius: 22px;
  padding: 64px 52px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 60px rgba(34, 225, 255, 0.14), inset 0 0 90px rgba(34, 225, 255, 0.05);
}

/* 内部网格 */
.why-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 225, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 225, 255, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 100% at 20% 50%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 100% at 20% 50%, #000, transparent 80%);
  pointer-events: none;
}

.why-band::after {
  content: "";
  position: absolute;
  width: 460px; height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 225, 255, 0.3), transparent 68%);
  top: -200px; right: -140px;
  filter: blur(30px);
  pointer-events: none;
}

.why-band .section-head { position: relative; z-index: 1; }

.why-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.why-item {
  padding-left: 18px;
  border-left: 2px solid rgba(34, 225, 255, 0.4);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.why-item:hover { border-color: var(--neon-cyan); transform: translateX(5px); }

.why-item h3 {
  font-size: 2.1rem;
  font-weight: 900;
  background: var(--grad-tech);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.25;
}

.why-item span { font-size: 0.9rem; color: rgba(230, 242, 255, 0.82); }

/* ============================================
   流程
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
}

.step-card {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  border: 1px solid var(--line);
  position: relative;
  transition: all 0.32s ease;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.step-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.step-card .step-num {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(34, 225, 255, 0.1);
  border: 1px solid var(--line-strong);
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.02rem;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  box-shadow: inset 0 0 16px rgba(34, 225, 255, 0.16), 0 0 18px rgba(34, 225, 255, 0.16);
  transition: all 0.3s ease;
}
.step-card:hover .step-num {
  background: var(--grad-main);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--glow-orange);
}

.step-card h3 { font-size: 1.04rem; margin-bottom: 8px; color: var(--ink); }
.step-card p { font-size: 0.85rem; color: var(--ink-soft); }

/* ============================================
   CTA
   ============================================ */
.cta-band {
  text-align: center;
  background: linear-gradient(160deg, rgba(12, 24, 44, 0.85), rgba(8, 12, 24, 0.9));
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 70px rgba(34, 225, 255, 0.14);
  padding: 70px 40px;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(420px 220px at 50% 0%, rgba(34, 225, 255, 0.16), transparent 70%),
    radial-gradient(420px 220px at 50% 120%, rgba(255, 107, 53, 0.14), transparent 70%);
  pointer-events: none;
}

.cta-band > * { position: relative; z-index: 1; }

.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 900; margin-bottom: 14px; }
.cta-band p { color: var(--ink-soft); margin-bottom: 30px; }

/* ============================================
   页脚
   ============================================ */
footer {
  background: linear-gradient(180deg, rgba(6, 10, 20, 0.6), #03050A);
  color: var(--ink-soft);
  padding: 64px 0 28px;
  margin-top: 92px;
  position: relative;
  border-top: 1px solid var(--line);
  z-index: 2;
}

footer::before {
  content: "";
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 225, 255, 0.8), rgba(255, 107, 53, 0.6), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 44px;
}

.footer-grid h4 {
  color: var(--ink);
  font-size: 0.95rem;
  margin-bottom: 16px;
  position: relative;
  padding-left: 12px;
}
.footer-grid h4::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 14px;
  background: var(--grad-tech);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(34, 225, 255, 0.8);
}

.footer-grid a { display: block; font-size: 0.87rem; margin-bottom: 10px; transition: all 0.22s; }
.footer-grid a:hover { color: var(--neon-cyan); transform: translateX(4px); text-shadow: 0 0 12px rgba(34, 225, 255, 0.6); }

.footer-grid p { font-size: 0.87rem; margin-bottom: 10px; }

/* 官网域名链接 */
.domain-link {
  display: inline;
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: 0.3px;
  border-bottom: 1px dashed rgba(34, 225, 255, 0.5);
  transition: color 0.22s, border-color 0.22s, text-shadow 0.22s;
}
.domain-link:hover {
  color: #fff;
  border-bottom-color: var(--neon-cyan);
  text-shadow: 0 0 12px rgba(34, 225, 255, 0.85);
}
.footer-grid a.domain-link { display: inline; margin-bottom: 0; }
.footer-grid a.domain-link:hover { transform: none; }

.footer-bottom {
  border-top: 1px solid rgba(34, 225, 255, 0.12);
  padding-top: 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.6px;
  color: var(--ink-dim);
}

.footer-bottom .icp-link {
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.25s ease;
  border-bottom: 1px solid transparent;
}

.footer-bottom .icp-link:hover {
  color: var(--cyan, #22E1FF);
  border-bottom-color: rgba(34, 225, 255, 0.5);
}

.footer-bottom .gaba-link {
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.25s ease;
  border-bottom: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  vertical-align: middle;
}

.footer-bottom .gaba-link:hover {
  color: var(--cyan, #22E1FF);
  border-bottom-color: rgba(34, 225, 255, 0.5);
}

.footer-bottom .gaba-link img {
  width: 14px;
  height: 14px;
  display: inline-block;
}

/* ============================================
   内页 Hero
   ============================================ */
.page-hero {
  padding: 96px 0 76px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  left: -25%; right: -25%;
  bottom: -60px;
  height: 240px;
  background-image:
    linear-gradient(rgba(34, 225, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 225, 255, 0.2) 1px, transparent 1px);
  background-size: 70px 44px;
  transform: perspective(300px) rotateX(64deg);
  transform-origin: bottom center;
  mask-image: linear-gradient(to top, #000 5%, transparent 86%);
  -webkit-mask-image: linear-gradient(to top, #000 5%, transparent 86%);
  animation: floorScroll 3.6s linear infinite;
  opacity: 0.6;
  pointer-events: none;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.4px;
  text-shadow: 0 0 50px rgba(34, 225, 255, 0.22);
}

.page-hero p { color: var(--ink-soft); max-width: 560px; margin: 0 auto; }

/* ============================================
   关于页
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 80px;
}

.about-visual {
  background: linear-gradient(150deg, rgba(34, 225, 255, 0.14), rgba(139, 92, 246, 0.12) 50%, rgba(255, 107, 53, 0.14));
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  min-height: 340px;
  display: grid;
  place-items: center;
  color: var(--ink);
  text-align: center;
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(34, 225, 255, 0.16);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
}

.about-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 225, 255, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 225, 255, 0.09) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}

.about-visual::after {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 225, 255, 0.28), transparent 68%);
  bottom: -150px; left: -90px;
  filter: blur(24px);
  pointer-events: none;
}

.about-visual .big {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--grad-hybrid);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-visual .small {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 3px;
  color: var(--neon-cyan);
  opacity: 0.9;
}

.about-text h2 { font-size: 1.8rem; font-weight: 900; margin-bottom: 18px; }
.about-text p { color: var(--ink-soft); margin-bottom: 14px; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.value-card {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: transform 0.32s ease, border-color 0.32s ease, box-shadow 0.32s ease;
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.value-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--grad-tech);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s ease;
  box-shadow: 0 0 16px rgba(34, 225, 255, 0.8);
}

.value-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}
.value-card:hover::before { transform: scaleY(1); }

.value-card .icon {
  font-size: 1.7rem;
  margin-bottom: 12px;
  display: inline-grid;
  place-items: center;
  width: 50px; height: 50px;
  border-radius: 12px;
  background: rgba(34, 225, 255, 0.08);
  border: 1px solid var(--line);
}
.value-card h3 { font-size: 1.04rem; margin-bottom: 8px; }
.value-card p { font-size: 0.87rem; color: var(--ink-soft); }

/* ============================================
   联系页
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-card {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.contact-card:hover {
  transform: translateX(6px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.contact-card .icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(34, 225, 255, 0.08);
  border: 1px solid var(--line-strong);
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  flex-shrink: 0;
  box-shadow: inset 0 0 18px rgba(34, 225, 255, 0.14);
}

.contact-card h3 { font-size: 0.98rem; margin-bottom: 4px; color: var(--ink); }
.contact-card p { font-size: 0.9rem; color: var(--ink-soft); word-break: break-all; }

.contact-form-wrap {
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 60px rgba(34, 225, 255, 0.12), var(--shadow-soft);
  position: relative;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.contact-form-wrap h2 { font-size: 1.35rem; font-weight: 900; margin-bottom: 8px; }
.contact-form-wrap > p { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 26px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
  color: var(--neon-cyan);
  text-transform: uppercase;
  opacity: 0.9;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.94rem;
  color: var(--ink);
  background: rgba(4, 8, 16, 0.7);
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-dim); }

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--neon-cyan);
  background: rgba(6, 14, 26, 0.9);
  box-shadow: 0 0 0 3px rgba(34, 225, 255, 0.14), 0 0 26px rgba(34, 225, 255, 0.25);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* 下拉选项（暗色） */
.form-group select option { background: #0B1424; color: var(--ink); }

.form-note { font-size: 0.78rem; color: var(--ink-dim); margin-top: 14px; }

/* ============================================
   提示条
   ============================================ */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: rgba(8, 16, 30, 0.95);
  color: var(--ink);
  padding: 14px 28px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  font-size: 0.9rem;
  box-shadow: 0 12px 44px rgba(0, 0, 0, 0.6), 0 0 30px rgba(34, 225, 255, 0.3);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 200;
  pointer-events: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================
   HUD 装饰角标
   ============================================ */
.hud-corner {
  position: absolute;
  width: 18px; height: 18px;
  border: 2px solid var(--neon-cyan);
  opacity: 0.5;
  pointer-events: none;
  box-shadow: 0 0 12px rgba(34, 225, 255, 0.6);
}
.hud-corner.tl { top: 12px; left: 12px; border-right: none; border-bottom: none; }
.hud-corner.tr { top: 12px; right: 12px; border-left: none; border-bottom: none; }
.hud-corner.bl { bottom: 12px; left: 12px; border-right: none; border-top: none; }
.hud-corner.br { bottom: 12px; right: 12px; border-left: none; border-top: none; }

/* 状态数据条 */
.tech-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  justify-content: center;
  margin-top: 48px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1.2px;
  color: var(--ink-dim);
  text-transform: uppercase;
}

.tech-strip span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tech-strip span::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--neon-mint);
  box-shadow: 0 0 10px var(--neon-mint);
  animation: pulse 2.2s infinite;
}

/* ============================================
   滚动进度条
   ============================================ */
#scrollProgress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  z-index: 200;
  background: linear-gradient(90deg, #22E1FF, #8B5CF6 55%, #FF6B35);
  box-shadow: 0 0 14px rgba(34, 225, 255, 0.9);
  pointer-events: none;
  transition: width 0.1s linear;
}

/* 导航滚动加深 */
.navbar.scrolled {
  background: rgba(4, 6, 13, 0.92);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 1px 0 rgba(34, 225, 255, 0.22);
}

/* ============================================
   鼠标跟随光晕（卡片）
   ============================================ */
.service-card,
.value-card,
.contact-card,
.float-card,
.step-card {
  background-image: radial-gradient(
    340px circle at var(--mx, 50%) var(--my, 50%),
    rgba(34, 225, 255, 0.1),
    transparent 62%
  );
}

/* ============================================
   标题故障闪烁
   ============================================ */
[data-glitch].glitching {
  animation: glitchShift 0.26s steps(2, end) 1;
}

@keyframes glitchShift {
  0% { text-shadow: 2px 0 rgba(34, 225, 255, 0.8), -2px 0 rgba(255, 107, 53, 0.75); transform: translateX(0); }
  25% { text-shadow: -3px 0 rgba(34, 225, 255, 0.8), 3px 0 rgba(255, 107, 53, 0.75); transform: translateX(1.5px); }
  50% { text-shadow: 3px 0 rgba(139, 92, 246, 0.85), -3px 0 rgba(34, 225, 255, 0.8); transform: translateX(-1.5px); }
  75% { text-shadow: -2px 0 rgba(255, 107, 53, 0.75), 2px 0 rgba(34, 225, 255, 0.8); transform: translateX(1px); }
  100% { text-shadow: none; transform: translateX(0); }
}

/* ============================================
   入场动画
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1), transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 520px; }
  .services-grid, .values-grid { grid-template-columns: 1fr 1fr; }
  .why-grid, .steps-grid { grid-template-columns: 1fr 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    background: rgba(5, 9, 18, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 6%;
    gap: 4px;
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    transform: translateY(-130%);
    transition: transform 0.35s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .nav-cta { margin-top: 8px; text-align: center; }

  .services-grid, .values-grid, .why-grid, .steps-grid, .form-row { grid-template-columns: 1fr; }
  .hero { padding: 76px 0 96px; }
  section { padding: 64px 0; }
  .why-band { padding: 44px 28px; }
  .contact-form-wrap { padding: 28px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .why-item h3 { font-size: 1.8rem; }
  .tech-canvas { display: none; }
}

/* 打印时全部可见 */
@media print {
  .reveal { opacity: 1 !important; transform: none !important; }
  .tech-canvas, .scanlines, .scan-beam, .aurora, .tech-grid { display: none !important; }
  body { background: #fff; color: #000; }
}

/* 减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}