/* ============================================================
   合肥金灯科技 - 官网样式
   主题：深蓝科技底色 + 金灯金色点缀 + 电路视觉
   ============================================================ */

:root {
  --navy-900: #0a1b2e;
  --navy-800: #0e2540;
  --navy-700: #14304f;
  --blue: #1d6fd6;
  --blue-bright: #3b8ef0;
  --gold: #ffc107;
  --gold-soft: #ffd24d;
  --ink: #1b2a3a;
  --muted: #5d6b7a;
  --line: #e6ecf3;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --card: #ffffff;
  --radius: 16px;
  --shadow-sm: 0 2px 8px rgba(13, 40, 79, .06);
  --shadow-md: 0 10px 30px rgba(13, 40, 79, .10);
  --shadow-lg: 0 24px 60px rgba(13, 40, 79, .16);
  --maxw: 1200px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- 顶部滚动进度条 ---- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--blue-bright), var(--gold));
  z-index: 999; transition: width .1s linear;
}

/* ---- 导航 ---- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), padding .3s var(--ease);
  padding: 8px 0;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  box-shadow: 0 4px 20px rgba(13, 40, 79, .08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; }
.brand-logo { height: 40px; width: 40px; border-radius: 8px; object-fit: cover; }
.brand-logo-sm { height: 30px; width: 30px; }
.brand-text {
  display: flex; flex-direction: column; line-height: 1.1;
  font-weight: 700; font-size: 18px; color: #fff; letter-spacing: .5px;
  transition: color .3s;
}
.brand-text .brand-sub { font-size: 10px; font-weight: 500; color: var(--gold); letter-spacing: 2px; }
.navbar.scrolled .brand-text { color: var(--navy-800); }
.navbar.scrolled .brand-text .brand-sub { color: var(--blue); }

.nav-menu { display: flex; gap: 8px; }
.nav-link {
  position: relative; padding: 8px 14px; font-size: 15px; font-weight: 500;
  color: rgba(255, 255, 255, .85); border-radius: 8px; transition: color .25s;
}
.nav-link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link.active::after { transform: scaleX(1); }
.navbar.scrolled .nav-link { color: var(--ink); }
.navbar.scrolled .nav-link:hover, .navbar.scrolled .nav-link.active { color: var(--blue); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }
.navbar.scrolled .nav-toggle span { background: var(--ink); }
.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 ---- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  background: radial-gradient(120% 120% at 50% 0%, var(--navy-700) 0%, var(--navy-800) 45%, var(--navy-900) 100%);
  color: #fff; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.circuit-grid {
  position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(59, 142, 240, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 142, 240, .08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 35%, #000 0%, transparent 75%);
}
.hero-glow {
  position: absolute; width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 193, 7, .18) 0%, rgba(29, 111, 214, .12) 45%, transparent 70%);
  top: -120px; right: -120px; filter: blur(20px);
}
.hero-content { position: relative; z-index: 2; padding-top: 80px; padding-bottom: 80px; }
.hero-badge {
  display: inline-block; font-size: 13px; letter-spacing: 1px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(255, 193, 7, .12); border: 1px solid rgba(255, 193, 7, .4);
  color: var(--gold-soft); margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(34px, 6vw, 62px); font-weight: 900; line-height: 1.12;
  letter-spacing: -1px; margin-bottom: 22px;
}
.hero-title .dot { color: var(--gold); margin: 0 4px; }
.hero-title .gold {
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-soft) 50%, #fff 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: clamp(15px, 1.8vw, 18px); max-width: 640px; color: rgba(255, 255, 255, .78);
  margin-bottom: 36px;
}
.hero-sub strong { color: var(--gold-soft); font-weight: 700; }

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  max-width: 760px; padding: 28px 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.stat { text-align: left; }
.stat .num {
  font-size: clamp(28px, 4vw, 40px); font-weight: 900; color: #fff;
  display: inline-block; font-variant-numeric: tabular-nums;
}
.stat .unit { font-size: 26px; font-weight: 900; color: var(--gold); }
.stat p { font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 2px; }

.scroll-cue {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid rgba(255, 255, 255, .3); border-radius: 14px;
  display: flex; justify-content: center; padding-top: 8px;
}
.scroll-cue span { width: 3px; height: 8px; background: var(--gold); border-radius: 2px; animation: cue 1.6s infinite var(--ease); }
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(10px); } }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; font-size: 15px; font-weight: 700; border-radius: 999px;
  border: none; cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s, background .25s;
}
.btn-primary {
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-soft) 100%);
  color: var(--navy-900); box-shadow: 0 8px 24px rgba(255, 193, 7, .35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255, 193, 7, .5); }
.btn-ghost {
  background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, .35);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ---- 通用 Section ---- */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: 3px; font-weight: 700;
  color: var(--blue); margin-bottom: 14px;
}
.eyebrow::before, .eyebrow::after { content: "—"; margin: 0 8px; color: var(--gold); }
.section-title { font-size: clamp(26px, 3.4vw, 38px); font-weight: 900; color: var(--navy-800); margin-bottom: 14px; }
.section-desc { font-size: 16px; color: var(--muted); }

/* ---- 关于我们 ---- */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
.about-text h3 { font-size: 22px; font-weight: 700; color: var(--navy-800); margin-bottom: 18px; }
.about-text p { color: #44566a; margin-bottom: 16px; }
.about-text strong { color: var(--blue); }
.about-list { margin-top: 22px; display: grid; gap: 14px; }
.about-list li { display: flex; align-items: flex-start; gap: 12px; color: #36485c; font-size: 15px; }
.tick {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-bright));
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 12px; margin-top: 2px;
}
.tick::after { content: "✓"; font-weight: 900; }

.about-cards { display: grid; gap: 18px; }
.value-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow-sm); transition: transform .3s var(--ease), box-shadow .3s;
  position: relative; overflow: hidden;
}
.value-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--gold); }
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-ico { font-size: 26px; color: var(--blue); margin-bottom: 8px; }
.value-card h4 { font-size: 17px; color: var(--navy-800); margin-bottom: 6px; }
.value-card p { font-size: 14px; color: var(--muted); }

/* ---- 产品 ---- */
.prod-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 26px; }
.prod-card {
  background: var(--card); border-radius: 20px; padding: 32px 28px;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s; position: relative; overflow: hidden;
}
.prod-card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.prod-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.prod-card:hover::after { transform: scaleX(1); }
.prod-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.prod-ico {
  width: 60px; height: 60px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--accent) 12%, #fff); color: var(--accent);
}
.prod-tag {
  font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, #fff); color: var(--accent);
}
.prod-card h3 { font-size: 20px; color: var(--navy-800); margin-bottom: 12px; }
.prod-card > p { font-size: 14.5px; color: var(--muted); margin-bottom: 18px; }
.prod-feat { display: grid; gap: 10px; }
.prod-feat li {
  font-size: 14px; color: #3a4b5e; padding-left: 22px; position: relative;
}
.prod-feat li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 12px; height: 2px;
  background: var(--accent); border-radius: 2px;
}

/* ---- 技术实力 ---- */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-item {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.tech-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gold); }
.tech-no {
  font-size: 34px; font-weight: 900; color: var(--bg-alt);
  -webkit-text-stroke: 1.5px var(--blue); line-height: 1; margin-bottom: 14px;
  transition: -webkit-text-stroke-color .3s;
}
.tech-item:hover .tech-no { -webkit-text-stroke-color: var(--gold); }
.tech-item h3 { font-size: 19px; color: var(--navy-800); margin-bottom: 10px; }
.tech-item p { font-size: 14.5px; color: var(--muted); }

/* ---- 服务流程 ---- */
.process-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }
.process-line {
  position: absolute; top: 22px; left: 10%; right: 10%; height: 2px;
  background: repeating-linear-gradient(90deg, var(--blue) 0 8px, transparent 8px 16px);
  opacity: .5;
}
.process-step { text-align: center; position: relative; }
.step-dot {
  width: 18px; height: 18px; border-radius: 50%; background: var(--card);
  border: 3px solid var(--blue); margin: 14px auto 22px; position: relative; z-index: 2;
  transition: transform .3s, border-color .3s;
}
.process-step:hover .step-dot { transform: scale(1.25); border-color: var(--gold); background: var(--gold); }
.step-body {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 18px; box-shadow: var(--shadow-sm); transition: transform .3s var(--ease), box-shadow .3s;
}
.process-step:hover .step-body { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step-no { font-size: 13px; font-weight: 900; color: var(--gold); letter-spacing: 1px; }
.step-body h3 { font-size: 17px; color: var(--navy-800); margin: 6px 0 8px; }
.step-body p { font-size: 13.5px; color: var(--muted); }

/* ---- 联系 ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-info h3 { font-size: 24px; color: var(--navy-800); margin-bottom: 4px; }
.contact-en { color: var(--blue); font-size: 14px; margin-bottom: 28px; }
.contact-list { display: grid; gap: 20px; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; }
.ci-ico {
  flex: none; width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--navy-700), var(--blue));
  color: var(--gold); display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.ci-label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 2px; }
.contact-list p { font-size: 15px; color: var(--ink); font-weight: 500; }

.contact-form {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-md); display: grid; gap: 16px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--navy-800); }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 12px 14px; font-size: 14px; font-family: inherit;
  border: 1.5px solid var(--line); border-radius: 10px; background: var(--bg-alt);
  color: var(--ink); transition: border-color .2s, background .2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px rgba(29, 111, 214, .12);
}
.contact-form textarea { resize: vertical; }
.contact-form .btn-primary { margin-top: 4px; }
.form-note { text-align: center; color: #2e9c5e; font-weight: 600; font-size: 14px; }

/* ---- 页脚 ---- */
.footer { background: var(--navy-900); color: rgba(255, 255, 255, .7); padding: 50px 0 30px; }
.footer-inner { text-align: center; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-tag { color: var(--gold-soft); font-size: 14px; margin-bottom: 22px; }
.footer-nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 22px; margin-bottom: 24px; }
.footer-nav a { font-size: 14px; color: rgba(255, 255, 255, .65); transition: color .2s; }
.footer-nav a:hover { color: var(--gold); }
.copyright { font-size: 13px; color: rgba(255, 255, 255, .4); border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; }
.icp { margin-top: 8px; }
.icp a { font-size: 13px; color: rgba(255, 255, 255, .5); transition: color .2s; }
.icp a:hover { color: var(--gold); }

/* ---- 返回顶部 ---- */
.back-top {
  position: fixed; right: 26px; bottom: 26px; width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--navy-700), var(--blue)); color: #fff; font-size: 20px;
  border: none; cursor: pointer; box-shadow: var(--shadow-md); opacity: 0; visibility: hidden;
  transform: translateY(20px); transition: .3s var(--ease); z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { transform: translateY(-3px); background: linear-gradient(135deg, var(--blue), var(--gold)); }

/* ---- 滚动入场动画 ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
/* 依次延迟 */
.reveal:nth-child(2) { transition-delay: .08s; }
.reveal:nth-child(3) { transition-delay: .16s; }
.reveal:nth-child(4) { transition-delay: .24s; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; }
  .prod-grid, .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(3, 1fr); }
  .process-line { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}

@media (max-width: 720px) {
  .nav-menu {
    position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0;
    background: rgba(10, 27, 46, .98); backdrop-filter: blur(12px);
    padding: 8px 0; max-height: 0; overflow: hidden; transition: max-height .35s var(--ease);
  }
  .navbar.scrolled .nav-menu { background: rgba(255, 255, 255, .98); }
  .nav-menu.open { max-height: 420px; }
  .nav-link { color: rgba(255, 255, 255, .85); padding: 14px 24px; }
  .nav-link::after { display: none; }
  .navbar.scrolled .nav-link { color: var(--ink); }
  .nav-toggle { display: flex; }

  .section { padding: 72px 0; }
  .prod-grid, .tech-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-cta { width: 100%; }
  .hero-cta .btn { flex: 1; }
  .container { padding: 0 20px; }
}

@media (max-width: 440px) {
  .process-track { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   动效增强（2026-07-31 新增）
   ============================================================ */

/* ---- Hero 标题逐词飞入 ---- */
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(46px) rotate(2deg);
  animation: wordIn .75s var(--ease) forwards;
  will-change: transform, opacity;
}
@keyframes wordIn { to { opacity: 1; transform: translateY(0) rotate(0); } }

/* ---- 电路网格缓慢流动 ---- */
.circuit-grid { animation: gridMove 26s linear infinite; }
@keyframes gridMove { to { background-position: 44px 44px; } }

/* ---- Hero 光晕漂浮 ---- */
.hero-glow { animation: glowDrift 11s ease-in-out infinite; }
@keyframes glowDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-44px, 30px) scale(1.12); }
}

/* ---- Hero 粒子画布 ---- */
#heroParticles {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 1;
}

/* ---- 浮动芯片装饰 ---- */
.hero-chip { position: absolute; display: block; pointer-events: none; z-index: 1; opacity: .55; }
.chip-a {
  width: 64px; height: 64px; left: 7%; top: 24%;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(59, 142, 240, .20), rgba(59, 142, 240, .04));
  border: 1px solid rgba(59, 142, 240, .55);
  box-shadow: 0 0 26px rgba(59, 142, 240, .35), inset 0 0 14px rgba(59, 142, 240, .15);
  animation: floatChip 9s ease-in-out infinite;
}
.chip-a::before, .chip-a::after {
  content: ""; position: absolute; width: 7px; height: 3px; background: var(--blue-bright);
  box-shadow: 0 14px 0 var(--blue-bright), 0 28px 0 var(--blue-bright), 0 42px 0 var(--blue-bright), 0 56px 0 var(--blue-bright);
}
.chip-a::before { left: -8px; top: 3px; }
.chip-a::after { right: -8px; top: 3px; }
.chip-b {
  width: 42px; height: 42px; right: 9%; bottom: 26%;
  border-radius: 50%;
  border: 2px dashed rgba(255, 193, 7, .6);
  box-shadow: 0 0 20px rgba(255, 193, 7, .25);
  animation: floatChip 8s ease-in-out 1s infinite reverse;
}
.chip-c {
  width: 26px; height: 26px; left: 15%; bottom: 17%;
  border-radius: 7px;
  background: rgba(255, 193, 7, .14);
  border: 1px solid rgba(255, 193, 7, .55);
  animation: floatChip 10s ease-in-out .5s infinite;
}
@keyframes floatChip {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

/* ---- 徽章扫描光 ---- */
.hero-badge { position: relative; overflow: hidden; }
.hero-badge::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 36px; left: -60px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .4), transparent);
  transform: skewX(-20deg);
  animation: badgeSweep 3s ease-in-out infinite;
}
@keyframes badgeSweep {
  0% { left: -60px; }
  55% { left: 120%; }
  100% { left: 120%; }
}

/* ---- 按钮流光 ---- */
.btn { position: relative; overflow: hidden; }
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 45%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-20deg);
  animation: shimmer 3.4s ease-in-out infinite;
}
@keyframes shimmer {
  0% { left: -80%; }
  55% { left: 135%; }
  100% { left: 135%; }
}

/* ---- reveal 方向变体 ---- */
.reveal-left { transform: translateX(-46px); }
.reveal-right { transform: translateX(46px); }
.reveal-zoom { transform: scale(.9); }
.reveal-left.in, .reveal-right.in, .reveal-zoom.in { transform: none; }

/* 入场完成后清除过渡延迟，避免 hover 卡顿 */
.reveal.done { transition-delay: 0s; }

/* ---- 卡片鼠标跟随高光（spotlight） ---- */
.prod-card, .tech-item, .value-card, .contact-form {
  background-image: radial-gradient(340px circle at var(--mx, 50%) var(--my, 50%), rgba(59, 142, 240, .09), transparent 62%);
}

/* ---- 图标微动效 ---- */
.prod-ico { transition: transform .35s var(--ease); }
.prod-card:hover .prod-ico { transform: translateY(-4px) rotate(-8deg) scale(1.06); }
.value-ico { display: inline-block; transition: transform .3s var(--ease); }
.value-card:hover .value-ico { transform: scale(1.18) rotate(8deg); }
.tech-no { transition: transform .3s var(--ease), -webkit-text-stroke-color .3s; }
.tech-item:hover .tech-no { transform: scale(1.1); }

/* ---- 产品特性列表 hover ---- */
.prod-feat li { transition: transform .25s var(--ease), color .25s; }
.prod-feat li:hover { transform: translateX(6px); color: var(--blue); }

/* ---- 服务流程：虚线流动 + 圆点脉冲 ---- */
.process-line { animation: dashFlow 1.1s linear infinite; }
@keyframes dashFlow { to { background-position: 16px 0; } }
.step-dot { position: relative; }
.step-dot::after {
  content: ""; position: absolute; inset: -7px; border-radius: 50%;
  border: 2px solid var(--blue); opacity: 0;
  animation: dotPulse 2.6s ease-out infinite;
}
@keyframes dotPulse {
  0% { opacity: .7; transform: scale(.55); }
  70% { opacity: 0; transform: scale(1.55); }
  100% { opacity: 0; transform: scale(1.55); }
}

/* ---- 板块小标题划入 ---- */
.section-head.in .eyebrow { animation: eyebrowIn .6s var(--ease) both; }
@keyframes eyebrowIn {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: none; }
}

/* ---- 数字 hover 变色 ---- */
.stat .num { transition: color .3s; }
.stat:hover .num { color: var(--gold); }

/* ---- 尊重系统"减少动态效果"设置 ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ---- 动效移动端适配 ---- */
@media (max-width: 720px) {
  .chip-a, .chip-b, .chip-c { display: none; }
  .hero-title .word { transform: translateY(30px); }
}