/* ===================================================================
   广州锦奕咨询服务有限公司 - 官网样式表
   特性：原生纯 CSS、无外部依赖、加载极速、响应式布局、高质感商务风格
   =================================================================== */

:root {
  --primary: #1e3a8a;          /* 稳重企业深蓝 */
  --primary-hover: #172554;
  --primary-light: #2563eb;    /* 活力科技蓝 */
  --primary-soft: #eff6ff;     /* 浅蓝底色 */
  --accent: #0ea5e9;           /* 强调青蓝 */
  --text-main: #0f172a;        /* 正文字色 */
  --text-muted: #475569;       /* 次要文本 */
  --text-light: #94a3b8;       /* 浅色文本 */
  --bg-page: #f8fafc;          /* 页面底色 */
  --bg-card: #ffffff;          /* 卡片背景 */
  --border-color: #e2e8f0;     /* 边框色 */
  --border-focus: #bfdbfe;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", sans-serif;
  --max-width: 1200px;
}

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

html {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-page);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ================= 布局通用容器 ================= */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 72px 0;
}

.section-alt {
  background-color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
  background: var(--primary-soft);
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ================= 顶栏导航 Header ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.brand-sub {
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 4px;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-light);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-light);
  border-radius: 2px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.header-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-main);
}

/* ================= Hero 区域 ================= */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1e293b 100%);
  color: #fff;
  padding: 96px 0 108px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: #e0f2fe;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title span {
  color: #38bdf8;
}

.hero-desc {
  font-size: 17px;
  color: #cbd5e1;
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-primary {
  background: #38bdf8;
  color: #0f172a;
  border: 1px solid #38bdf8;
}

.btn-primary:hover {
  background: #7dd3fc;
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.35);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

/* Hero 右侧拟态小卡片群 */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  backdrop-filter: blur(12px);
  display: flex;
  gap: 18px;
  align-items: center;
  transition: transform 0.3s;
}

.hero-card:hover {
  transform: translateX(6px);
  background: rgba(255, 255, 255, 0.12);
}

.hero-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(56, 189, 248, 0.18);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #38bdf8;
}

.hero-card-title {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.hero-card-text {
  font-size: 13px;
  color: #cbd5e1;
  line-height: 1.5;
}

/* ================= 核心业务卡片 Grid ================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-focus);
}

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 20px;
}

.feature-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-light);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.feature-link:hover {
  gap: 8px;
}

/* ================= 小程序生态直达 Banner ================= */
.mp-showcase {
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.mp-showcase::after {
  content: "MP";
  position: absolute;
  right: -20px;
  bottom: -40px;
  font-size: 180px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.mp-badge {
  display: inline-block;
  background: rgba(56, 189, 248, 0.2);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.4);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}

.mp-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 14px;
}

.mp-desc {
  font-size: 15px;
  color: #cbd5e1;
  line-height: 1.7;
  margin-bottom: 24px;
}

.mp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.mp-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #e2e8f0;
}

.mp-list-icon {
  color: #38bdf8;
  flex-shrink: 0;
}

.mp-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.mp-qr-mock {
  width: 140px;
  height: 140px;
  background: #ffffff;
  border-radius: var(--radius-md);
  margin: 0 auto 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: 12px;
}

.mp-qr-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 6px;
}

.mp-qr-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
}

.mp-tip {
  font-size: 13px;
  color: #cbd5e1;
}

/* ================= 页面通用 Header (内部子页面) ================= */
.page-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #ffffff;
  padding: 64px 0;
  text-align: center;
}

.page-hero-title {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-hero-desc {
  font-size: 16px;
  color: #cbd5e1;
  max-width: 600px;
  margin: 0 auto;
}

/* ================= 公司介绍 About 样式 ================= */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 52px;
  align-items: center;
}

.about-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 18px;
}

.about-text p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 18px;
}

.about-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-soft);
  color: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 2px;
}

.info-val {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

/* ================= 业务详情 Services 样式 ================= */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.service-row {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 36px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s;
}

.service-row:hover {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-md);
}

.service-num {
  font-size: 48px;
  font-weight: 900;
  color: var(--border-color);
  line-height: 1;
}

.service-detail-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.service-detail-desc {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.service-tag-item {
  padding: 4px 12px;
  font-size: 13px;
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* ================= 联系我们 Contact 样式 ================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.contact-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-main);
  border-bottom: 2px solid var(--primary-soft);
  padding-bottom: 12px;
}

/* ================= 页脚 Footer (管局备案硬性规范要求) ================= */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 0 32px;
  margin-top: auto;
  font-size: 14px;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand-title {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 13px;
  line-height: 1.7;
  color: #64748b;
  max-width: 380px;
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a:hover {
  color: #38bdf8;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid #1e293b;
  text-align: center;
  font-size: 13px;
  color: #64748b;
  line-height: 1.8;
}

.footer-bottom a {
  color: #94a3b8;
}

.footer-bottom a:hover {
  color: #38bdf8;
  text-decoration: underline;
}

.icp-badge {
  display: inline-block;
  margin: 0 8px;
}

/* ================= 移动端适配 (Responsive) ================= */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-grid,
  .mp-showcase,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .service-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 48px 0;
  }
  .hero {
    padding: 64px 0 72px;
  }
  .hero-title {
    font-size: 30px;
  }
  .section-title {
    font-size: 24px;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-toggle {
    display: block;
  }
  .header-cta {
    display: none;
  }
  .mp-showcase {
    padding: 32px 24px;
  }
}