/* === 智企软件工作室 - 公共样式 === */
:root {
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #7c3aed;
  --nav-bg: rgba(15, 23, 42, 0.92);
  --gradient: linear-gradient(135deg, #2563eb, #7c3aed);
  --gradient-reverse: linear-gradient(135deg, #7c3aed, #2563eb);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ====== 导航栏 ====== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 68px;
}
.nav-brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: #fff;
  font-weight: 700; font-size: 1.1rem;
}
.nav-brand .studio-logo { font-size: 1.5rem; color: #60a5fa; display: flex; align-items: center; }
.nav-links { display: flex; gap: 4px; list-style: none; align-items: center; }
.nav-links a {
  color: #cbd5e1; text-decoration: none;
  padding: 8px 18px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500;
  transition: all var(--transition);
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav-links a.active { color: #fff; background: rgba(96,165,250,0.15); }
.nav-cta {
  padding: 8px 22px; border-radius: 8px;
  background: var(--primary); color: #fff !important;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--primary-hover) !important; }

/* 导航下拉菜单 */
.nav-links .dropdown { position: relative; }
.nav-links .dropdown-trigger {
  color: #cbd5e1; text-decoration: none;
  padding: 8px 18px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500;
  transition: all var(--transition);
  cursor: pointer; display: flex; align-items: center; gap: 6px;
  background: none; border: none; font-family: inherit;
}
.nav-links .dropdown-trigger:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav-links .dropdown-trigger.active { color: #fff; background: rgba(96,165,250,0.15); }
.nav-links .dropdown-trigger i { font-size: 0.7rem; opacity: 0.6; transition: transform var(--transition); }
.nav-links .dropdown:hover .dropdown-trigger i { transform: rotate(180deg); }
.nav-links .dropdown-menu {
  position: absolute; top: 100%; left: 0;
  min-width: 200px; padding: 8px;
  background: #1e293b; border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
  opacity: 0; visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  list-style: none;
}
.nav-links .dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-links .dropdown-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 8px;
  color: #cbd5e1; font-size: 0.9rem;
  white-space: nowrap;
}
.nav-links .dropdown-menu a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-links .dropdown-menu a i { width: 18px; text-align: center; font-size: 0.85rem; }

/* ====== Hero ====== */
.hero {
  background: linear-gradient(160deg, #0f172a 0%, #172554 30%, #1e3a8a 60%, #6d28d9 100%);
  color: #fff; position: relative; overflow: hidden;
  min-height: 420px; margin-top: 68px;
  display: flex; align-items: center; justify-content: center;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 25% 50%, rgba(96,165,250,0.2), transparent),
    radial-gradient(ellipse 50% 50% at 80% 60%, rgba(124,58,237,0.15), transparent);
  pointer-events: none;
}
.hero .hero-deco {
  position: absolute;
  pointer-events: none;
}
.hero .hero-deco.d1 {
  right: 8%; top: 18%;
  width: 260px; height: 200px;
  background: linear-gradient(135deg, rgba(96,165,250,0.15), rgba(124,58,237,0.1));
  border-radius: 24px;
  transform: rotate(8deg);
}
.hero .hero-deco.d2 {
  left: 6%; bottom: 20%;
  width: 180px; height: 140px;
  border: 1.5px solid rgba(147,197,253,0.25);
  border-radius: 20px;
  transform: rotate(-6deg);
}
.hero .hero-deco.d3 {
  right: 15%; bottom: 15%;
  width: 90px; height: 90px;
  border-radius: 50%;
  border: 2px solid rgba(167,139,250,0.2);
}
.hero .hero-deco.d4 {
  left: 12%; top: 20%;
  width: 70px; height: 70px;
  border-radius: 50%;
  border: 2px solid rgba(96,165,250,0.2);
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: 1000px; text-align: center;
  padding: 80px 32px;
}
.hero-inner h1 {
  font-size: 3.6rem; font-weight: 900;
  letter-spacing: -1.5px; line-height: 1.25;
  margin-bottom: 20px;
}
.hero-inner h1 .grad {
  background: linear-gradient(135deg, #93c5fd, #a78bfa, #f9a8d4);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-inner .hero-desc {
  font-size: 1.15rem; color: rgba(255,255,255,0.7);
  max-width: 600px; margin: 0 auto 40px;
  line-height: 1.8;
}
.hero-btns {
  display: flex; gap: 14px; flex-wrap: wrap;
  justify-content: center;
}
.hero-btn {
  padding: 14px 34px; border-radius: 10px;
  font-size: 0.95rem; font-weight: 600;
  text-decoration: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all var(--transition); border: none;
}
.hero-btn.primary {
  background: #fff; color: #1e3a5f;
}
.hero-btn.primary:hover { background: #e2e8f0; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
.hero-btn.outline {
  background: transparent; color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}
.hero-btn.outline:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.5); transform: translateY(-2px); }

/* ====== 主内容区 ====== */
.main { flex: 1; width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ====== Section ====== */
.section { padding: 80px 0; }
.section-label {
  font-size: 0.85rem; font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 3px; margin-bottom: 16px;
}
.section-heading {
  font-size: 2.2rem; font-weight: 800;
  line-height: 1.35; margin-bottom: 16px;
}
.section-heading .grad {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem; max-width: 680px;
  margin-bottom: 48px; line-height: 1.7;
}

/* ====== 服务卡片 ====== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #bfdbfe;
}
.service-card .s-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 20px;
}
.service-card .s-icon.blue { background: #eff6ff; color: var(--primary); }
.service-card .s-icon.purple { background: #f5f3ff; color: var(--accent); }
.service-card .s-icon.green { background: #f0fdf4; color: #16a34a; }
.service-card .s-icon.amber { background: #fffbeb; color: #d97706; }
.service-card .s-icon.rose { background: #fff1f2; color: #e11d48; }
.service-card .s-icon.teal { background: #f0fdfa; color: #0d9488; }

.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.service-card > p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.6; }

.service-card .s-section-label {
  font-size: 0.75rem; font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px; margin-bottom: 10px;
}
.service-card .s-features {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 16px;
}
.service-card .s-feat {
  padding: 5px 14px; background: #f8fafc;
  border-radius: 20px; font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.service-card .s-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.service-card .s-tag {
  padding: 6px 14px; background: var(--primary-light);
  color: var(--primary); border-radius: 20px;
  font-size: 0.78rem; font-weight: 600;
}

/* ====== 优势 ====== */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.adv-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 36px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.adv-item:hover { border-color: #bfdbfe; box-shadow: var(--shadow-md); }
.adv-item .adv-icon { font-size: 28px; margin-bottom: 16px; }
.adv-item .adv-icon.blue { color: var(--primary); }
.adv-item .adv-icon.purple { color: var(--accent); }
.adv-item .adv-icon.green { color: #16a34a; }
.adv-item .adv-icon.amber { color: #d97706; }
.adv-item h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.adv-item p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; margin-bottom: 16px; }
.adv-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.adv-tag {
  padding: 6px 16px; background: #f1f5f9;
  border-radius: 8px; font-size: 0.82rem;
  font-weight: 600; color: var(--text-secondary);
}

/* ====== 流程 ====== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.process-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
}
.process-item:hover { box-shadow: var(--shadow-md); border-color: #bfdbfe; }
.process-num {
  font-size: 2.4rem; font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
  line-height: 1;
}
.process-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.process-item p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.6; }

/* ====== 案例卡片 ====== */
.case-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
  max-width: 800px;
  margin: 0 auto;
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.case-img {
  height: 260px;
  background: linear-gradient(135deg, #0f172a, #1e3a5f, #2563eb);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.case-img::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(96,165,250,0.2), transparent),
    radial-gradient(circle at 70% 60%, rgba(124,58,237,0.15), transparent);
}
.case-img .case-logo {
  width: 100px; height: 100px;
  background: #fff; border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; padding: 12px; isolation: isolate;
  position: relative; z-index: 1;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.case-img .case-logo img {
  width: 76px; height: 76px;
  object-fit: contain;
  mix-blend-mode: multiply;
}
.case-badge {
  position: absolute; top: 20px; right: 20px;
  padding: 6px 16px; background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px); border-radius: 20px;
  color: #fff; font-size: 0.8rem; font-weight: 600;
}
.case-body { padding: 36px 40px; }
.case-body h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.case-body > p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 24px; line-height: 1.7; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.case-tag {
  padding: 6px 16px; background: var(--primary-light);
  color: var(--primary); border-radius: 20px;
  font-size: 0.82rem; font-weight: 600;
}
.case-features {
  color: var(--text-secondary); font-size: 0.9rem;
  margin-bottom: 20px; line-height: 2;
}
.case-features li { display: flex; align-items: center; gap: 8px; }
.case-features li::before {
  content: ''; width: 6px; height: 6px;
  background: var(--primary); border-radius: 50%;
  flex-shrink: 0;
}

/* ====== 统计 ====== */
.stats-section { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 48px 0; text-align: center;
}
.stat-item .stat-num {
  font-size: 2.6rem; font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.stat-item .stat-label { color: var(--text-secondary); font-size: 0.9rem; margin-top: 6px; }
.stat-item .stat-sub { color: var(--text-muted); font-size: 0.78rem; margin-top: 2px; }

/* ====== CTA ====== */
.cta-section {
  background: linear-gradient(160deg, #0f172a, #1e3a5f, #432c7a);
  border-radius: 24px;
  padding: 70px 48px; text-align: center;
  color: #fff; position: relative; overflow: hidden;
  margin: 0 32px 80px;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(96,165,250,0.2), transparent);
  pointer-events: none;
}
.cta-section h2 {
  font-size: 2.2rem; font-weight: 800;
  margin-bottom: 12px; position: relative;
}
.cta-section > p {
  color: rgba(255,255,255,0.65);
  font-size: 1.05rem; margin-bottom: 36px;
  position: relative; max-width: 500px;
  margin-left: auto; margin-right: auto;
}
.cta-section .hero-btns { position: relative; }
.cta-section .hero-btn.primary { background: #fff; color: #1e3a5f; }
.cta-section .hero-btn.primary:hover { background: #e2e8f0; }
.cta-section .hero-btn.secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
}
.cta-section .hero-btn.secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.8);
}
.cta-buttons {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  position: relative;
}

/* ====== 页面标题 ====== */
.page-header { margin: 40px 0 40px; padding-top: 20px; }
.page-header h1 {
  font-size: 2rem; font-weight: 800;
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 8px;
}
.page-header h1 i { color: var(--primary); font-size: 1.6rem; }
.page-header p { color: var(--text-secondary); font-size: 1.05rem; }

/* ====== 共性组件 ====== */
.section-title {
  font-size: 1.4rem; font-weight: 700;
  margin-bottom: 20px; display: flex; align-items: center; gap: 10px;
}
.section-title i { color: var(--primary); }
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px; margin-bottom: 28px;
}
.feature-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px; background: #f8fafc;
  border-radius: var(--radius-sm); font-size: 0.9rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.feature-item:hover { border-color: #bfdbfe; background: #eff6ff; }
.feature-item i { color: var(--primary); margin-top: 2px; flex-shrink: 0; font-size: 1rem; width: 20px; text-align: center; }
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 600;
  text-decoration: none; transition: all var(--transition);
  cursor: pointer; border: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(37,99,235,0.35); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #6d28d9; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(124,58,237,0.35); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.coming-soon-card {
  background: var(--card-bg); border: 2px dashed var(--border);
  border-radius: var(--radius); padding: 56px 32px;
  text-align: center; color: var(--text-secondary);
}
.coming-soon-card i { font-size: 52px; color: #cbd5e1; margin-bottom: 20px; }
.coming-soon-card h3 { font-size: 1.2rem; color: var(--text); margin-bottom: 8px; font-weight: 700; }

/* ====== 页脚 ====== */
.footer {
  background: #0f172a; color: #94a3b8;
  padding: 64px 32px 32px;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
.footer-col p, .footer-col a {
  display: block; color: #94a3b8;
  text-decoration: none; font-size: 0.85rem;
  line-height: 2.2; transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px; text-align: center;
  font-size: 0.82rem;
}
.footer-bottom p { margin-bottom: 4px; }
.footer-bottom a { color: #94a3b8; text-decoration: none; }
.footer-bottom a:hover { color: #fff; }
.footer-bottom .icp { margin-top: 8px; }
.footer-bottom .psb { margin-top: 4px; }
.footer-bottom .report { margin-top: 4px; font-size: 0.78rem; opacity: 0.55; }

/* ====== 产品展板（product/contact 用） ====== */
.product-showcase {
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  overflow: hidden; margin-bottom: 24px;
}
.product-header {
  background: linear-gradient(135deg, #0f172a, #1e3a5f);
  color: #fff; padding: 36px 40px;
  display: flex; align-items: center; gap: 24px;
}
.product-logo {
  width: 80px; height: 80px; background: #fff;
  border-radius: 18px; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; overflow: hidden;
  padding: 8px; isolation: isolate;
}
.product-logo img { width: 64px; height: 64px; object-fit: contain; mix-blend-mode: multiply; }
.product-info h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 4px; }
.product-info .version { font-size: 0.85rem; opacity: 0.7; }
.product-body { padding: 32px 40px; }
.specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 24px; }
.spec-item { padding: 16px; background: #f8fafc; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.spec-item .label { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 4px; }
.spec-item .value { font-weight: 600; }

.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 40px; }
.contact-card {
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  padding: 36px 32px; text-align: center;
  transition: all var(--transition);
}
.contact-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.contact-card .icon {
  width: 64px; height: 64px; margin: 0 auto 16px;
  background: var(--primary-light); border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: var(--primary);
}
.contact-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.contact-card p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 4px; }
.about-card {
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  padding: 36px 40px; margin-bottom: 32px;
  transition: all var(--transition);
}
.about-card:hover { box-shadow: var(--shadow-lg); }
.about-card h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; }
.about-card p { color: var(--text-secondary); margin-bottom: 12px; line-height: 1.8; }

/* ====== 响应式 ====== */
/* ====== 产品详情页 ====== */
.product-hero {
  background: linear-gradient(160deg, #0f172a 0%, #172554 30%, #1e3a8a 60%, #6d28d9 100%);
  color: #fff; min-height: 420px; margin-top: 68px;
  text-align: center; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.product-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 40% at 30% 50%, rgba(96,165,250,0.15), transparent);
}
.product-hero > * { position: relative; z-index: 1; }
.product-hero h1 { font-size: 3rem; font-weight: 900; letter-spacing: -1px; margin-bottom: 16px; }
.product-hero h1 .grad {
  background: linear-gradient(135deg, #93c5fd, #a78bfa);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.product-hero .hero-desc {
  font-size: 1.1rem; color: rgba(255,255,255,0.65);
  max-width: 600px; margin: 0 auto 36px; line-height: 1.7;
}
.product-hero .hero-btns { justify-content: center; }

.product-section { padding: 72px 0; }
.product-section.bg-white { background: #fff; }
.product-section.bg-light { background: #f1f5f9; }

.prod-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.prod-overview-item {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px 24px; text-align: center;
  border: 1px solid var(--border); transition: all var(--transition);
}
.prod-overview-item:hover { border-color: #bfdbfe; box-shadow: var(--shadow-md); }
.prod-overview-item .oi-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px; font-size: 22px;
  background: var(--primary-light); color: var(--primary);
}
.prod-overview-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.prod-overview-item p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.5; }

.feat-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.feat-detail-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 36px; border: 1px solid var(--border);
  transition: all var(--transition);
}
.feat-detail-card:hover { border-color: #bfdbfe; box-shadow: var(--shadow-md); }
.feat-detail-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.feat-detail-card h3 i { color: var(--primary); }
.feat-detail-card > p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; line-height: 1.7; }
.feat-detail-card ul { list-style: none; }
.feat-detail-card ul li {
  color: var(--text-secondary); font-size: 0.88rem;
  padding: 5px 0; display: flex; align-items: center; gap: 8px;
}
.feat-detail-card ul li::before {
  content: ''; width: 5px; height: 5px;
  background: var(--primary); border-radius: 50%; flex-shrink: 0;
}

/* 定价表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px; margin: 0 auto;
}
.pricing-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 40px 32px; border: 2px solid var(--border);
  text-align: center; transition: all var(--transition);
  position: relative;
  display: flex; flex-direction: column;
}
.pricing-card .pricing-btn-wrap { margin-top: auto; }
.pricing-card:hover { border-color: #bfdbfe; box-shadow: var(--shadow-lg); }
.pricing-card.featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.pricing-card .popular-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  padding: 4px 18px; background: var(--primary); color: #fff;
  border-radius: 20px; font-size: 0.75rem; font-weight: 700;
}
.pricing-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.pricing-card .price { font-size: 2.2rem; font-weight: 900; margin-bottom: 4px; }
.pricing-card .price small { font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); }
.pricing-card .price-sub { color: var(--text-muted); font-size: 0.82rem; margin-bottom: 24px; }
.pricing-card ul { list-style: none; text-align: left; margin-bottom: 28px; }
.pricing-card ul li {
  color: var(--text-secondary); font-size: 0.88rem;
  padding: 6px 0; display: flex; align-items: center; gap: 8px;
}
.pricing-card ul li i { color: #16a34a; font-size: 0.8rem; }
.pricing-card ul li.unavailable { opacity: 0.4; }
.pricing-card ul li.unavailable i { color: var(--text-muted); }

/* ====== 产品截图展示 ====== */
.hero-screenshot {
  margin-top: 48px;
  position: relative;
  z-index: 1;
}
.hero-screenshot img {
  width: 100%;
  max-width: 1000px;
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.1);
}

.showcase-section { padding: 80px 0; }
.showcase-section.bg-light { background: #f1f5f9; }
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.showcase-row.reverse .showcase-content { order: 2; }
.showcase-row.reverse .showcase-media { order: 1; }
.showcase-content .section-label { margin-bottom: 16px; }
.showcase-content h3 {
  font-size: 1.8rem; font-weight: 800;
  margin-bottom: 16px; line-height: 1.3;
}
.showcase-content > p {
  color: var(--text-secondary);
  font-size: 1.05rem; line-height: 1.8;
  margin-bottom: 24px;
}
.showcase-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  list-style: none;
}
.showcase-features li {
  display: flex; align-items: center; gap: 10px;
  color: var(--text-secondary); font-size: 0.9rem;
}
.showcase-features li i {
  color: var(--primary); font-size: 0.85rem;
}
.showcase-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  background: var(--card-bg);
}
.showcase-media img {
  width: 100%; height: auto;
  display: block;
}

/* 产品参数 */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}
@media (max-width: 768px) {
  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .spec-grid {
    grid-template-columns: 1fr;
  }
}
.spec-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 20px;
  transition: all var(--transition);
}
.spec-card:hover { border-color: #bfdbfe; box-shadow: var(--shadow-sm); }
.spec-card h4 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.spec-card p {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
}

/* FAQ */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg); border-radius: var(--radius-sm);
  padding: 20px 28px; margin-bottom: 10px;
  border: 1px solid var(--border); transition: all var(--transition);
}
.faq-item:hover { border-color: #bfdbfe; }
.faq-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.faq-item p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* ====== 联系我们页 ====== */
.contact-hero {
  background: linear-gradient(160deg, #0f172a 0%, #172554 30%, #1e3a8a 60%, #6d28d9 100%);
  color: #fff; min-height: 420px; margin-top: 68px;
  text-align: center; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.contact-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 40% at 30% 50%, rgba(96,165,250,0.15), transparent);
}
.contact-hero > * { position: relative; z-index: 1; }
.contact-hero h1 { font-size: 2.8rem; font-weight: 900; letter-spacing: -1px; margin-bottom: 14px; }
.contact-hero h1 .grad {
  background: linear-gradient(135deg, #93c5fd, #a78bfa);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.contact-hero .hero-desc {
  font-size: 1.1rem; color: rgba(255,255,255,0.65);
  max-width: 500px; margin: 0 auto;
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-bottom: 40px;
}
.contact-method-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 36px 32px; text-align: center;
  border: 1px solid var(--border); transition: all var(--transition);
}
.contact-method-card:hover { border-color: #bfdbfe; box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.contact-method-card .cm-icon {
  width: 60px; height: 60px; margin: 0 auto 18px;
  border-radius: 16px; display: flex; align-items: center; justify-content: center;
  font-size: 26px;
}
.contact-method-card .cm-icon.blue { background: #eff6ff; color: var(--primary); }
.contact-method-card .cm-icon.purple { background: #f5f3ff; color: var(--accent); }
.contact-method-card .cm-icon.green { background: #f0fdf4; color: #16a34a; }
.contact-method-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.contact-method-card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.6; }

@media (max-width: 1024px) {
  .prod-overview-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-detail-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .showcase-row { grid-template-columns: 1fr; gap: 40px; }
  .showcase-row.reverse .showcase-content { order: 1; }
  .showcase-row.reverse .showcase-media { order: 2; }
  .showcase-features { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .prod-overview-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-detail-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .contact-methods { grid-template-columns: 1fr; }
  .product-hero h1 { font-size: 2rem; }
  .product-hero { padding: 100px 0 60px; }
  .contact-hero h1 { font-size: 1.8rem; }
  .nav-inner { padding: 0 20px; }
  .nav-links a { padding: 6px 10px; font-size: 0.8rem; }
  .hero { min-height: 460px; margin-top: 60px; }
  .hero-inner h1 { font-size: 2.2rem; }
  .hero-inner .hero-desc { font-size: 1rem; }
  .hero-btns { flex-direction: column; align-items: center; }
  .hero-btn { width: 100%; max-width: 300px; justify-content: center; }
  .section { padding: 56px 0; }
  .section-heading { font-size: 1.7rem; }
  .service-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .adv-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 48px 24px; margin: 0 16px 56px; border-radius: 20px; }
  .cta-section h2 { font-size: 1.6rem; }
  .footer-inner { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .features { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; }
  .btn { justify-content: center; }
  .container { padding: 0 20px; }
  .product-header { flex-direction: column; text-align: center; padding: 24px; }
  .product-body { padding: 20px; }
  .specs { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-card { padding: 24px; }
  .showcase-section { padding: 56px 0; }
  .showcase-content h3 { font-size: 1.4rem; }
  .hero-screenshot { margin-top: 32px; padding: 0 16px; }
}