:root {
  --primary: #0f62fe;
  --primary-dark: #0b4bc2;
  --text: #1f2933;
  --muted: #5f6c7b;
  --bg: #f7f9fb;
  --card: #ffffff;
  --border: #e5e7eb;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(15, 98, 254, 0.1);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 0;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { width: 38px; height: 38px; border-radius: 10px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.brand-title { font-weight: 700; }
.brand-sub { color: var(--muted); font-size: 13px; }
.navbar nav {
  display: flex;
  gap: 16px;
  flex: 1;
  flex-wrap: wrap;
  transition: all 0.3s ease;
}
.navbar nav a { color: var(--text); font-weight: 500; transition: color 0.2s ease; }
.navbar nav a:hover { color: var(--primary); }
.nav-cta {
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  transition: background-color 0.2s ease;
}
.nav-cta:hover {
  background: var(--primary-dark);
  color: #fff;
}
.nav-toggle { display: none; cursor: pointer; font-size: 20px; transition: transform 0.3s ease; }
.nav-toggle:hover {
  transform: scale(1.1);
}

.hero {
  background: linear-gradient(120deg, #f4f7ff, #e9f3ff);
  padding: 70px 0 60px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
}
.eyebrow { color: var(--primary); font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; font-size: 13px; }
.hero h1 { margin: 8px 0 12px; font-size: 30px; }
.lead { color: var(--muted); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 16px 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-weight: 700;
  cursor: pointer;
}
.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn.primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn.ghost { background: #fff; }
.btn.full { width: 100%; }
.btn.small { padding: 8px 10px; font-size: 14px; }

.hero-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-pills span {
  background: #fff;
  color: var(--primary-dark);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #dbe6ff;
  font-size: 13px;
}

.hero-card, .contact-card {
  background: #fff;
  padding: 18px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual img {
  width: 100%;
  max-width: 440px;
  height: auto;
}
.lead-form { display: flex; flex-direction: column; gap: 10px; }
.lead-form input, .lead-form textarea {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  transition: all 0.2s ease;
}
.lead-form input:focus, .lead-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 98, 254, 0.1);
}
.lead-form input:invalid, .lead-form textarea:invalid {
  border-color: #d92d20;
}
.lead-form input:valid, .lead-form textarea:valid {
  border-color: #10b981;
}
.form-status {
  min-height: 20px;
  font-size: 13px;
  color: var(--primary-dark);
  transition: all 0.3s ease;
  margin-top: 8px;
}
.form-status.error {
  color: #d92d20;
}
.form-status.success {
  color: #10b981;
}
.lead-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}
.lead-form button:disabled:hover {
  transform: none;
}
.hero-note { color: var(--muted); font-size: 13px; margin-top: 8px; }

.section { padding: 70px 0; }
.section.alt { background: var(--bg); }
.section-header { text-align: center; max-width: 760px; margin: 0 auto 30px; }
.section-header h2 { margin: 6px 0 10px; }
.section-sub { color: var(--muted); }
.section-visual { display: flex; justify-content: center; margin-bottom: 18px; }
.section-visual img { width: min(540px, 100%); height: auto; border-radius: 12px; box-shadow: 0 10px 26px rgba(15, 98, 254, 0.12); }

.cta-strip {
  background: linear-gradient(120deg, rgba(15,98,254,0.12), rgba(107,208,0,0.12));
  padding: 14px 0;
  border-top: 1px solid #dce7ff;
  border-bottom: 1px solid #dce7ff;
}
.cta-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.cta-strip-text { display: flex; flex-direction: column; gap: 4px; color: var(--text); }
.cta-strip-text span { color: var(--muted); }
.cta-strip-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.cards { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--card);
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 8px 20px rgba(15, 98, 254, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card h3, .card h4 { margin-top: 0; }
.card ul { padding-left: 18px; margin: 0; color: var(--muted); }
.card p { color: var(--muted); }
.card.muted { background: #f3f6fb; border-style: dashed; }
.small { color: var(--muted); font-size: 13px; }
.result { font-weight: 600; color: var(--text); }
.card-figure {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 12px;
  background: #111827;
}
.pricing-card { position: relative; }
.price-tier { font-weight: 800; color: var(--primary-dark); margin-bottom: 6px; }
.price { font-weight: 800; font-size: 18px; color: var(--text); margin-top: 6px; }
.pricing-card p.muted { margin-top: 10px; }
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(15, 98, 254, 0.12);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: start;
}
.stats {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.stats strong { font-size: 22px; display: block; }
.about-card ol { margin: 0; padding-left: 18px; color: var(--muted); }
.about-visual { display: flex; justify-content: center; }
.about-visual img { width: min(520px, 100%); height: auto; border-radius: 12px; box-shadow: 0 12px 26px rgba(15, 98, 254, 0.1); }

.faq-list details {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 10px;
}
.faq-list summary { cursor: pointer; font-weight: 600; }
.faq-list p { margin: 8px 0 0; color: var(--muted); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr 0.8fr;
  gap: 24px;
}
.contact-list { list-style: none; padding: 0; margin: 0 0 14px; color: var(--muted); }
.contact-list li { margin-bottom: 8px; }
.qr-box {
  border: 1px dashed var(--border);
  padding: 12px;
  border-radius: var(--radius);
  text-align: center;
}
.qr-image {
  width: 220px;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 22px rgba(0,0,0,0.08);
  background: #fff;
  display: block;
  margin: 0 auto;
}
.qr-placeholder {
  width: 180px;
  height: 180px;
  margin: 0 auto 10px;
  background: repeating-linear-gradient(45deg, #f0f4ff, #f0f4ff 10px, #e2e8ff 10px, #e2e8ff 20px);
  display: grid;
  place-items: center;
  color: var(--muted);
  border-radius: 8px;
  font-size: 13px;
}
.qr-fallback {
  text-align: center;
  padding: 20px;
}
.qr-fallback-icon {
  font-size: 48px;
  margin-bottom: 10px;
}
.qr-fallback code {
  background: rgba(15, 98, 254, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
}
.contact-visual { display: flex; align-items: center; justify-content: center; }
.contact-visual img { width: min(320px, 100%); height: auto; border-radius: 12px; box-shadow: 0 12px 24px rgba(15, 98, 254, 0.12); background: #0f172a; padding: 10px; }

.footer {
  background: #0b1220;
  color: #dfe7ff;
  padding: 32px 0;
}
.footer a { color: #dfe7ff; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 18px;
  align-items: start;
}
.footer-links { display: grid; gap: 6px; }
.footer-meta { color: #9fb2d0; font-size: 13px; }

.floating-bar {
  position: fixed;
  right: 14px;
  bottom: 14px;
  display: grid;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 10px;
}
.floating-bar a, .floating-bar button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 12px;
  font-weight: 700;
  cursor: pointer;
}
.floating-bar button { font-family: inherit; }

/* 动画 */
[data-animate] { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-animate].visible { opacity: 1; transform: translateY(0); }

@media (max-width: 960px) {
  .hero-inner, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .navbar nav {
    display: none;
    width: 100%;
    opacity: 0;
    transform: translateY(-10px);
    flex-direction: column;
    background: #fff;
    padding: 10px 0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
  }
  .navbar nav.open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
  }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
}

@media (max-width: 640px) {
  .hero { padding: 50px 0 40px; }
  .section { padding: 50px 0; }
  .floating-bar {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .floating-bar a, .floating-bar button { padding: 10px 8px; font-size: 13px; }
}


/* 图片优化样式 */
img {
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

img:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.card-figure {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 16px;
}

/* Hero图片样式 */
.hero-visual img {
  max-width: 100%;
  height: auto;
}

/* 服务和案例图片样式 */
.section-visual img {
  max-width: 80%;
  margin: 0 auto;
  display: block;
}

/* 图片优化样式 */
img {
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

img:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.card-figure {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 16px;
}

/* Hero图片样式 */
.hero-visual img {
  max-width: 100%;
  height: auto;
}

/* 服务和案例图片样式 */
.section-visual img {
  max-width: 80%;
  margin: 0 auto;
  display: block;
}