/* ===== 昆明烁城科技有限公司 官网样式 ===== */
:root {
  --primary: #0a5cff;
  --primary-dark: #0642c0;
  --primary-light: #e8f0ff;
  --accent: #00c2a8;
  --ink: #0f172a;
  --ink-2: #334155;
  --ink-3: #64748b;
  --line: #e6ebf2;
  --bg: #ffffff;
  --bg-soft: #f6f9ff;
  --bg-soft-2: #f1f5fb;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, .05);
  --shadow: 0 12px 40px rgba(10, 92, 255, .10);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, .12);
  --maxw: 1200px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }

/* ===== 通用文字 ===== */
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  padding: 6px 14px;
  background: var(--primary-light);
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -.5px;
  line-height: 1.25;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 16px;
  color: var(--ink-3);
  max-width: 660px;
  margin: 0 auto;
}
.text-center { text-align: center; }
.section-head { margin-bottom: 56px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: all .25s ease;
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 22px rgba(10,92,255,.28); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(10,92,255,.36); }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-light { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.35); backdrop-filter: blur(6px); }
.btn-light:hover { background: rgba(255,255,255,.25); }

/* ===== 顶部导航 ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 40px; height: 40px;
  border-radius: 10px;
  object-fit: contain;
}
.brand-name { font-weight: 800; font-size: 18px; letter-spacing: -.3px; }
.brand-name span { color: var(--primary); }
.brand-sub { font-size: 11px; color: var(--ink-3); letter-spacing: 1px; }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  transition: all .2s;
}
.nav-menu a:hover { color: var(--primary); background: var(--primary-light); }
.nav-menu a.active { color: var(--primary); font-weight: 600; }
.nav-cta { margin-left: 10px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 110px 0 120px;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(10,92,255,.14), transparent 60%),
    radial-gradient(700px 500px at 5% 110%, rgba(0,194,168,.12), transparent 55%),
    var(--bg-soft);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: 50px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 22px;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.lead {
  font-size: 17px;
  color: var(--ink-2);
  margin-bottom: 32px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 34px; }
.hero-tags span {
  font-size: 13px; color: var(--ink-2);
  background: #fff; border: 1px solid var(--line);
  padding: 7px 14px; border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

/* Hero 视觉卡 */
.hero-visual {
  position: relative;
}
.hero-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 26px;
  box-shadow: var(--shadow-lg);
}
.hero-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.hero-card-head .dot { width: 11px; height: 11px; border-radius: 50%; }
.hero-mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-mini {
  background: var(--bg-soft);
  border-radius: 14px;
  padding: 18px;
  border: 1px solid var(--line);
}
.hero-mini .ic { font-size: 24px; margin-bottom: 10px; }
.hero-mini h4 { font-size: 15px; margin-bottom: 4px; }
.hero-mini p { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }
.hero-float {
  position: absolute;
  right: -14px; bottom: -22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 18px;
  box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 12px;
}
.hero-float .num { font-size: 26px; font-weight: 800; color: var(--primary); }
.hero-float small { font-size: 12px; color: var(--ink-3); }

/* ===== 统计条 ===== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; padding: 28px 16px; }
.stat .num { font-size: 40px; font-weight: 800; color: var(--primary); letter-spacing: -1px; }
.stat .num .unit { font-size: 22px; }
.stat p { color: var(--ink-3); font-size: 14px; margin-top: 4px; }

/* ===== 卡片网格 ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all .3s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card .ic {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--primary-light);
  display: grid; place-items: center;
  font-size: 26px;
  margin-bottom: 20px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--ink-3); font-size: 14.5px; }
.card ul.dots { margin-top: 14px; }
.card ul.dots li { font-size: 14px; color: var(--ink-2); padding-left: 20px; position: relative; margin: 6px 0; }
.card ul.dots li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ===== 特点行 ===== */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.feature-row.reverse .feature-media { order: 2; }
.feature-media {
  background: linear-gradient(135deg, var(--primary-light), #fff);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 40px;
  min-height: 320px;
  display: grid;
  place-items: center;
}
.feature-list li {
  display: flex; gap: 14px; margin: 18px 0;
}
.feature-list .fic {
  flex-shrink: 0;
  width: 42px; height: 42px; border-radius: 11px;
  background: var(--primary-light); color: var(--primary);
  display: grid; place-items: center; font-size: 20px;
}
.feature-list h4 { font-size: 16px; margin-bottom: 2px; }
.feature-list p { font-size: 14px; color: var(--ink-3); }

/* ===== 流程步骤 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step { text-align: center; position: relative; }
.step .n {
  width: 56px; height: 56px; margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 800; font-size: 22px;
  display: grid; place-items: center;
  box-shadow: 0 8px 20px rgba(10,92,255,.28);
}
.step h4 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--ink-3); }

/* ===== 案例卡 ===== */
.case-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-cover {
  height: 180px;
  display: grid; place-items: center;
  font-size: 54px;
  color: #fff;
  position: relative;
}
.case-cover .tag {
  position: absolute; top: 14px; left: 14px;
  font-size: 12px; background: rgba(255,255,255,.9); color: var(--ink);
  padding: 4px 12px; border-radius: 999px; font-weight: 600;
}
.case-body { padding: 24px; }
.case-body h3 { font-size: 18px; margin-bottom: 10px; }
.case-body p { font-size: 14px; color: var(--ink-3); margin-bottom: 16px; }
.case-metrics { display: flex; gap: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.case-metrics div { flex: 1; }
.case-metrics .m { font-size: 22px; font-weight: 800; color: var(--primary); }
.case-metrics small { font-size: 12px; color: var(--ink-3); }

/* ===== CTA 区 ===== */
.cta {
  background: linear-gradient(120deg, var(--primary), var(--primary-dark));
  border-radius: 26px;
  padding: 64px 56px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(500px 300px at 90% 0%, rgba(255,255,255,.18), transparent 60%);
}
.cta h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; position: relative; }
.cta p { font-size: 16px; opacity: .92; margin-bottom: 30px; position: relative; }
.cta .hero-actions { justify-content: center; position: relative; }

/* ===== 页脚 ===== */
.footer {
  background: #0b1220;
  color: #cbd5e1;
  padding: 64px 0 28px;
}
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.footer .brand-name { color: #fff; }
.footer-about p { font-size: 14px; color: #94a3b8; margin-top: 16px; max-width: 320px; }
.footer h5 { color: #fff; font-size: 15px; margin-bottom: 18px; }
.footer li { margin: 10px 0; }
.footer a { font-size: 14px; color: #94a3b8; transition: color .2s; }
.footer a:hover { color: #fff; }
.footer-contact li { font-size: 14px; color: #94a3b8; display: flex; gap: 10px; }
.footer-bottom {
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: #64748b;
}
.footer-bottom a { color: inherit; text-decoration: none; transition: color .2s; }
.footer-bottom a:hover { color: #fff; text-decoration: underline; }

/* ===== 页面横幅（内页） ===== */
.page-hero {
  padding: 80px 0 70px;
  background:
    radial-gradient(700px 400px at 85% -20%, rgba(10,92,255,.14), transparent 60%),
    var(--bg-soft);
  text-align: center;
}
.page-hero h1 { font-size: 42px; font-weight: 800; letter-spacing: -1px; margin-bottom: 14px; }
.page-hero p { font-size: 17px; color: var(--ink-3); max-width: 640px; margin: 0 auto; }
.breadcrumb { font-size: 13px; color: var(--ink-3); margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--primary); }

/* ===== 联系页 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact-info-card {
  display: flex; gap: 16px;
  padding: 22px;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 18px;
  transition: all .3s;
}
.contact-info-card:hover { box-shadow: var(--shadow-sm); border-color: var(--primary); }
.contact-info-card .ic {
  flex-shrink: 0; width: 50px; height: 50px; border-radius: 13px;
  background: var(--primary-light); display: grid; place-items: center; font-size: 24px;
}
.contact-info-card h4 { font-size: 16px; margin-bottom: 3px; }
.contact-info-card p { font-size: 14px; color: var(--ink-3); }
.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 10px;
  font-family: inherit; font-size: 14px; color: var(--ink);
  background: var(--bg-soft); transition: all .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3px rgba(10,92,255,.12);
}
.field textarea { resize: vertical; min-height: 120px; }
.map-embed {
  margin-top: 40px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); height: 340px;
  background: var(--bg-soft-2);
  display: grid; place-items: center; text-align: center; color: var(--ink-3);
}

/* ===== 价值观/时间线 ===== */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card {
  padding: 30px 26px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line);
  border-top: 3px solid var(--primary);
}
.value-card .ic { font-size: 30px; margin-bottom: 14px; }
.value-card h4 { font-size: 18px; margin-bottom: 8px; }
.value-card p { font-size: 14px; color: var(--ink-3); }

.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item::before { content: ""; position: absolute; left: -30px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--primary); border: 3px solid var(--primary-light); }
.tl-item .yr { font-weight: 800; color: var(--primary); font-size: 16px; }
.tl-item h4 { font-size: 17px; margin: 4px 0 6px; }
.tl-item p { font-size: 14px; color: var(--ink-3); }

/* ===== 服务详情卡片 ===== */
.service-detail {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 36px;
  transition: all .3s ease;
}
.service-detail:hover { box-shadow: var(--shadow); border-color: transparent; }
.service-detail-head { display: flex; gap: 24px; align-items: flex-start; margin-bottom: 28px; }
.service-ic {
  flex-shrink: 0;
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--primary-light);
  display: grid; place-items: center;
  font-size: 30px;
}
.service-detail-head h2 { font-size: 26px; margin-bottom: 0; }
.service-capabilities { padding-left: 4px; }
.service-capabilities h4 { font-size: 16px; color: var(--ink); margin-bottom: 14px; font-weight: 700; }
.capability-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.cap-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 14.5px; color: var(--ink-2);
  padding: 10px 16px;
  background: var(--bg-soft);
  border-radius: 10px;
  transition: all .2s;
}
.cap-item:hover { background: var(--primary-light); }
.cap-item .check {
  flex-shrink: 0;
  width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: #fff;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 800;
}

/* ===== 动画 ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 38px; }
  .grid-3, .grid-4, .value-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .feature-row, .contact-grid, .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .feature-row.reverse .feature-media { order: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .nav-menu { display: none; }
  .nav-toggle { display: flex; }
  .nav-menu.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px 20px;
    gap: 2px; box-shadow: var(--shadow);
  }
  .nav-menu.open .nav-cta { margin: 8px 0 0; text-align: center; }
  .hero h1 { font-size: 31px; }
  .section-title { font-size: 26px; }
  .grid-3, .grid-4, .value-grid, .steps, .stats { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta { padding: 44px 24px; }
  .cta h2 { font-size: 25px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-float { position: static; margin-top: 16px; }
}