/* 广西江晚网络科技 - 蓝色风格官网 */

:root {
  --blue-50: #eef6ff;
  --blue-100: #d9ebff;
  --blue-200: #b3d7ff;
  --blue-400: #4d9fff;
  --blue-500: #1a7fff;
  --blue-600: #0068ff;
  --blue-700: #0054d6;
  --blue-800: #003f9e;
  --blue-900: #0b1f3a;
  --sky: #38bdf8;
  --text: #1e293b;
  --muted: #64748b;
  --line: #dbe7f5;
  --white: #ffffff;
  --shadow: 0 10px 40px rgba(0, 104, 255, 0.12);
  --radius: 18px;
  --header: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: .25s ease;
}
.btn-solid {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  color: #fff;
  padding: 11px 24px;
  box-shadow: 0 8px 20px rgba(0, 104, 255, .28);
}
.btn-solid:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0, 104, 255, .35); }
.btn-line {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.45);
  padding: 11px 24px;
  backdrop-filter: blur(8px);
}
.btn-line:hover { background: rgba(255,255,255,.22); }
.btn-lg { padding: 14px 30px; font-size: 15px; }
.btn-block { width: 100%; border-radius: 12px; padding: 14px; }

/* Header */
.header {
  position: fixed; inset: 0 0 auto 0; height: var(--header);
  background: rgba(255,255,255,.9); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent; z-index: 100;
  transition: .25s;
}
.header.scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(15, 76, 150, .06); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  color: #fff; display: grid; place-items: center; font-weight: 700;
}
.logo-name { font-weight: 700; font-size: 18px; color: var(--blue-900); }
.logo-name span { display: block; font-size: 10px; font-weight: 500; letter-spacing: 2px; color: var(--blue-400); }
.nav { display: flex; gap: 6px; margin-left: auto; }
.nav a {
  padding: 8px 14px; border-radius: 999px; font-size: 14px; color: var(--muted);
}
.nav a:hover, .nav a.active { color: var(--blue-600); background: var(--blue-50); }
.burger { display: none; background: none; border: none; flex-direction: column; gap: 5px; cursor: pointer; }
.burger span { width: 22px; height: 2px; background: var(--blue-900); }

/* Hero */
.hero {
  position: relative; min-height: 100vh; padding: calc(var(--header) + 56px) 0 80px;
  background: linear-gradient(160deg, #041830 0%, #0a3a7a 45%, #0068ff 100%);
  color: #fff; overflow: hidden;
}
.hero-waves {
  position: absolute; inset: auto 0 0 0; height: 180px;
  background:
    radial-gradient(ellipse at 20% 100%, rgba(56,189,248,.25), transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(0,104,255,.35), transparent 45%);
}
.hero-grid {
  position: relative; display: grid; grid-template-columns: 1.1fr .9fr;
  gap: 48px; align-items: center;
}
.pill {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2);
  font-size: 12px; letter-spacing: 2px; margin-bottom: 20px; color: #b8dcff;
}
.hero-copy h1 {
  font-size: clamp(34px, 5vw, 54px); line-height: 1.2; font-weight: 800; margin-bottom: 18px;
}
.hero-copy > p {
  max-width: 520px; color: rgba(255,255,255,.78); font-size: 16px; margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-metrics { display: flex; gap: 36px; }
.hero-metrics b { display: block; font-size: 34px; font-weight: 800; }
.hero-metrics span { font-size: 13px; color: rgba(255,255,255,.6); }

.hero-art { position: relative; min-height: 360px; }
.orb {
  position: absolute; border-radius: 50%; filter: blur(2px);
}
.orb-1 {
  width: 220px; height: 220px; right: 10%; top: 0;
  background: radial-gradient(circle, rgba(56,189,248,.55), transparent 70%);
  animation: float 6s ease-in-out infinite;
}
.orb-2 {
  width: 160px; height: 160px; left: 0; bottom: 20%;
  background: radial-gradient(circle, rgba(0,104,255,.5), transparent 70%);
  animation: float 7s ease-in-out infinite reverse;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.glass-card {
  position: relative; margin: 40px auto 0; max-width: 380px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22);
  border-radius: 24px; padding: 24px; backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}
.glass-top {
  display: flex; align-items: center; gap: 8px; font-size: 14px;
  margin-bottom: 18px; color: #dcebff;
}
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #38bdf8;
  box-shadow: 0 0 0 0 rgba(56,189,248,.7);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 10px rgba(56,189,248,0); }
  100% { box-shadow: 0 0 0 0 rgba(56,189,248,0); }
}
.glass-rows { display: grid; gap: 10px; margin-bottom: 20px; }
.glass-row {
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(255,255,255,.08); border-radius: 12px; padding: 12px 14px; font-size: 14px;
}
.glass-row strong { color: #fff; }
.wave-bars {
  display: flex; align-items: flex-end; gap: 8px; height: 90px;
}
.wave-bars i {
  flex: 1; height: var(--h); border-radius: 6px 6px 0 0;
  background: linear-gradient(180deg, #7dd3fc, #0068ff);
  animation: bar 1.4s ease-in-out infinite alternate;
}
.wave-bars i:nth-child(odd) { animation-delay: .2s; }
.wave-bars i:nth-child(3n) { animation-delay: .4s; }
@keyframes bar { from { transform: scaleY(.7); } to { transform: scaleY(1); } }

.strip {
  background: var(--blue-50); border-bottom: 1px solid var(--line); padding: 18px 0;
}
.strip-inner {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 28px;
  color: var(--blue-700); font-size: 14px; font-weight: 600;
}

.section-head { text-align: center; margin-bottom: 48px; }
.eyebrow {
  display: inline-block; color: var(--blue-600); font-size: 12px;
  letter-spacing: 3px; font-weight: 700; margin-bottom: 10px;
}
.eyebrow.light { color: #9fd0ff; }
.section-head h2 { font-size: clamp(26px, 3.5vw, 36px); color: var(--blue-900); margin-bottom: 10px; }
.section-head p { color: var(--muted); max-width: 560px; margin: 0 auto; }
.section-head.light h2 { color: #fff; }
.section-head.light p { color: rgba(255,255,255,.7); }

.advantages { padding: 96px 0; }
.adv-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.adv-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 22px; transition: .25s;
}
.adv-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow);
  border-color: var(--blue-200);
}
.adv-icon {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 16px;
  display: grid; place-items: center; font-weight: 800; color: var(--blue-700);
  background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
}
.adv-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--blue-900); }
.adv-card p { font-size: 14px; color: var(--muted); }

.products {
  padding: 96px 0;
  background: linear-gradient(180deg, #05306a 0%, #0a4da8 55%, #0068ff 100%);
}
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.product-grid article {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius); padding: 28px 24px; color: #fff;
  backdrop-filter: blur(8px); transition: .25s;
}
.product-grid article:hover {
  background: rgba(255,255,255,.16); transform: translateY(-4px);
}
.p-icon { font-size: 28px; margin-bottom: 14px; }
.product-grid h3 { font-size: 18px; margin-bottom: 10px; }
.product-grid p { font-size: 14px; color: rgba(255,255,255,.75); }

.industries { padding: 96px 0; background: var(--blue-50); }
.industry-tabs {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 36px;
}
.industry-tabs button {
  border: 1.5px solid var(--blue-200); background: #fff; color: var(--muted);
  padding: 10px 20px; border-radius: 999px; cursor: pointer; font-size: 14px; transition: .2s;
}
.industry-tabs button.active,
.industry-tabs button:hover {
  background: var(--blue-600); border-color: var(--blue-600); color: #fff;
}
.industry-panel {
  display: none; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: center;
  background: #fff; border-radius: 24px; padding: 36px; border: 1px solid var(--line);
}
.industry-panel.active { display: grid; animation: fade .35s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.industry-panel h3 { font-size: 26px; color: var(--blue-900); margin-bottom: 12px; }
.industry-panel p { color: var(--muted); margin-bottom: 18px; }
.industry-panel ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.industry-panel li {
  font-size: 14px; color: var(--blue-800);
  background: var(--blue-50); border-radius: 10px; padding: 10px 12px;
}
.panel-visual { height: 240px; border-radius: 18px; }
.blue-a { background: linear-gradient(135deg, #dbeafe, #60a5fa); }
.blue-b { background: linear-gradient(135deg, #e0f2fe, #38bdf8); }
.blue-c { background: linear-gradient(135deg, #c7d2fe, #3b82f6); }
.blue-d { background: linear-gradient(135deg, #bfdbfe, #2563eb); }
.blue-e { background: linear-gradient(135deg, #bae6fd, #0ea5e9); }

.about { padding: 96px 0; }
.about-grid {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center;
}
.about h2 { font-size: clamp(26px, 3vw, 34px); color: var(--blue-900); margin: 8px 0 16px; }
.about p { color: var(--muted); margin-bottom: 14px; }
.about-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.about-chips span {
  padding: 7px 14px; border-radius: 999px; background: var(--blue-50);
  color: var(--blue-700); font-size: 13px; font-weight: 600;
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.about-stats div {
  background: linear-gradient(160deg, var(--blue-600), var(--blue-800));
  color: #fff; border-radius: 18px; padding: 28px 20px; text-align: center;
}
.about-stats strong { display: block; font-size: 32px; margin-bottom: 6px; }
.about-stats span { font-size: 13px; color: rgba(255,255,255,.75); }

.contact {
  padding: 96px 0;
  background: linear-gradient(145deg, #041830, #0b4aa8 60%, #1a7fff);
  color: #fff;
}
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-left h2 { font-size: 34px; margin: 8px 0 14px; }
.contact-left > p { color: rgba(255,255,255,.75); margin-bottom: 28px; }
.contact-left li {
  padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12);
}
.contact-left strong {
  display: block; font-size: 12px; letter-spacing: 1px; color: #9fd0ff; margin-bottom: 4px;
}
.contact-form {
  background: #fff; color: var(--text); border-radius: 22px; padding: 32px;
  box-shadow: var(--shadow);
}
.contact-form h3 { font-size: 20px; color: var(--blue-900); margin-bottom: 20px; }
.contact-form label {
  display: block; font-size: 13px; color: var(--muted); margin-bottom: 14px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px;
  border: 1.5px solid var(--line); border-radius: 12px; font: inherit;
  background: #f8fbff;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none; border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(0,104,255,.12);
}
.agree { display: flex !important; align-items: center; gap: 8px; }
.agree input { width: auto !important; margin: 0 !important; }

.footer {
  background: #061627; color: rgba(255,255,255,.65); padding-top: 56px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer .logo-name { color: #fff; }
.footer-desc { margin-top: 14px; font-size: 14px; line-height: 1.8; }
.footer h4 { color: #fff; font-size: 14px; margin-bottom: 16px; }
.footer a { display: block; font-size: 14px; margin-bottom: 10px; color: rgba(255,255,255,.55); }
.footer a:hover { color: #7dd3fc; }
.phone { font-size: 20px; color: #fff; font-weight: 700; margin-bottom: 8px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; font-size: 13px;
}
.footer-bottom a { color: rgba(255,255,255,.55); }
.footer-bottom a:hover { color: #7dd3fc; }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(80px);
  background: var(--blue-900); color: #fff; padding: 12px 24px; border-radius: 999px;
  border: 1px solid rgba(125,211,252,.35); opacity: 0; transition: .35s; z-index: 200;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 1024px) {
  .hero-grid, .industry-panel, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .adv-grid, .product-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav, .header .btn-solid { display: none; }
  .burger { display: flex; margin-left: auto; }
  .nav.open {
    display: flex; flex-direction: column; position: absolute;
    top: var(--header); left: 0; right: 0; background: #fff;
    padding: 16px 24px; border-bottom: 1px solid var(--line);
  }
  .adv-grid, .product-grid, .footer-grid, .about-stats { grid-template-columns: 1fr; }
  .industry-panel ul { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .hero-metrics { gap: 20px; }
}