/* 洞见智创企业官网 — 方维风格定制 */
:root {
  --color-primary: #1565c0;
  --color-primary-dark: #0d47a1;
  --color-accent: #ff6f00;
  --color-text: #333;
  --color-text-light: #666;
  --color-border: #e8e8e8;
  --color-bg: #f5f7fa;
  --color-white: #fff;
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --radius: 8px;
  --container: 1200px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-white);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); }
.btn-primary:hover { background: var(--color-primary-dark); color: var(--color-white); }
.btn-light { background: var(--color-white); color: var(--color-primary); }
.btn-light:hover { background: #f0f0f0; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 14px 36px; font-size: 17px; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 0 var(--color-border);
  height: var(--header-h);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.site-logo-text { display: flex; flex-direction: column; line-height: 1.2; color: var(--color-text); }
.site-logo-text:hover { color: var(--color-primary); }
.logo-main { font-size: 22px; font-weight: 700; color: var(--color-primary); }
.logo-sub { font-size: 11px; color: var(--color-text-light); letter-spacing: 1px; }
.custom-logo-link img { max-height: 48px; width: auto; }

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 8px;
}
.nav-menu a {
  display: block;
  padding: 8px 14px;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
}
.nav-menu a:hover,
.nav-menu .current-menu-item a { color: var(--color-primary); }

.header-actions { display: flex; align-items: center; gap: 16px; }
.header-phone { font-weight: 600; color: var(--color-primary); white-space: nowrap; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-text); }

body { padding-top: var(--header-h); }

/* Hero */
.hero-slider { position: relative; height: 560px; overflow: hidden; background: #0a1628; }
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
}
.hero-slide.is-active { opacity: 1; z-index: 1; }
.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-color: #0d47a1;
}
.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 71, 161, 0.88) 0%, rgba(13, 71, 161, 0.55) 55%, rgba(13, 71, 161, 0.35) 100%);
  z-index: 1;
}
.hero-slide-content { z-index: 2; }
.hero-slide-content { position: relative; z-index: 2; color: var(--color-white); max-width: 720px; }
.hero-en { font-size: 13px; letter-spacing: 3px; opacity: 0.8; margin: 0 0 12px; text-transform: uppercase; }
.hero-title { font-size: clamp(28px, 4vw, 42px); font-weight: 700; margin: 0 0 12px; line-height: 1.3; }
.hero-subtitle { font-size: 18px; opacity: 0.9; margin: 0 0 8px; }
.hero-desc { font-size: 16px; opacity: 0.85; margin: 0 0 28px; }

.hero-controls {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
}
.hero-prev, .hero-next {
  background: rgba(255,255,255,0.2);
  border: none;
  color: #fff;
  width: 40px; height: 40px;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
}
.hero-dots { display: flex; gap: 8px; }
.hero-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: transparent;
  cursor: pointer;
  padding: 0;
}
.hero-dot.is-active { background: #fff; border-color: #fff; }
.hero-counter {
  position: absolute;
  right: 40px;
  bottom: 40px;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  z-index: 10;
}

/* Sections */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  text-align: left;
  flex-wrap: wrap;
  gap: 16px;
}
.section-title { font-size: 32px; font-weight: 700; margin: 0 0 12px; color: var(--color-text); }
.section-subtitle { font-size: 16px; color: var(--color-text-light); margin: 0; max-width: 640px; }
.link-more { font-weight: 600; white-space: nowrap; }

/* Intro */
.section-intro {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 80px 0;
}
.intro-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
}
.intro-inner { position: relative; z-index: 1; }
.intro-quote { margin: 0; text-align: center; max-width: 900px; margin: 0 auto; }
.quote-mark { font-size: 64px; color: var(--color-primary); line-height: 1; opacity: 0.3; margin: 0; }
.quote-text { font-size: 24px; font-weight: 600; color: var(--color-primary); margin: 0 0 16px; }
.quote-body { font-size: 16px; color: var(--color-text-light); line-height: 1.9; }

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  display: block;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all 0.3s;
  color: inherit;
  overflow: hidden;
}
.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
  color: inherit;
}
.service-card-img { aspect-ratio: 16/10; overflow: hidden; }
.service-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.service-card:hover .service-card-img img { transform: scale(1.05); }
.service-card-body { padding: 24px; }
.site-logo-img img { max-height: 48px; width: auto; display: block; }
.theme-fallback-img,
.case-thumb img,
.news-thumb img,
.solution-card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.service-icon {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.2;
  margin-bottom: 12px;
}
.service-title { font-size: 18px; margin: 0 0 12px; color: var(--color-text); }
.service-desc { font-size: 14px; color: var(--color-text-light); margin: 0 0 12px; line-height: 1.7; }
.service-tags { font-size: 12px; color: var(--color-accent); display: block; margin-bottom: 12px; }
.service-more { font-size: 14px; color: var(--color-primary); font-weight: 600; }

/* Stats */
.section-stats { background: var(--color-primary); color: var(--color-white); padding: 48px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-num { font-size: 36px; font-weight: 700; margin-bottom: 4px; }
.stat-label { font-size: 14px; opacity: 0.9; }

/* Cases */
.section-cases { background: var(--color-bg); }
.case-filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; justify-content: center; }
.case-filter {
  padding: 8px 20px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}
.case-filter.is-active,
.case-filter:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.case-card { background: var(--color-white); border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: transform 0.3s; }
.case-card:hover { transform: translateY(-4px); }
.case-card-link { color: inherit; display: block; }
.case-card-link:hover { color: inherit; }
.case-thumb { position: relative; aspect-ratio: 3/2; overflow: hidden; background: #dde3ea; }
.case-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, #e3f2fd, #bbdefb); min-height: 200px; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; }
.case-tag {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
}
.case-body { padding: 20px; }
.case-title { font-size: 17px; margin: 0 0 8px; line-height: 1.4; }
.case-excerpt { font-size: 14px; color: var(--color-text-light); margin: 0; line-height: 1.6; }
.case-card.is-hidden { display: none; }

/* Solutions */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.solution-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.solution-card-thumb { display: block; aspect-ratio: 16/10; overflow: hidden; }
.solution-card-body { padding: 20px; border-left: 4px solid var(--color-primary); }
.solution-icon { color: var(--color-primary); margin-bottom: 12px; }
.solution-card h3 { font-size: 17px; margin: 0 0 10px; }
.solution-card h3 a { color: var(--color-text); }
.solution-card p { font-size: 14px; color: var(--color-text-light); margin: 0 0 12px; }
.solution-link { font-size: 14px; font-weight: 600; }

/* News */
.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; }
.news-item { border-bottom: 1px solid var(--color-border); }
.news-item-link {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  color: inherit;
  align-items: center;
}
.news-thumb {
  flex-shrink: 0;
  width: 140px;
  height: 90px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
}
.news-item-link:hover { color: var(--color-primary); }
.news-date {
  flex-shrink: 0;
  width: 64px;
  text-align: center;
  background: var(--color-bg);
  padding: 12px 8px;
  border-radius: var(--radius);
}
.news-day { display: block; font-size: 28px; font-weight: 700; color: var(--color-primary); line-height: 1; }
.news-month { display: block; font-size: 12px; color: var(--color-text-light); }
.news-body h3 { font-size: 16px; margin: 0 0 8px; line-height: 1.4; }
.news-body p { font-size: 14px; color: var(--color-text-light); margin: 0; }

/* Clients */
.section-clients { background: var(--color-bg); }
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.client-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 20px;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
}
.client-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow); }
.client-item img { max-width: 100%; max-height: 56px; object-fit: contain; }

/* Footer */
.footer-cta {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
  padding: 48px 0;
}
.footer-cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-cta h2 { margin: 0 0 8px; font-size: 26px; }
.footer-cta p { margin: 0; opacity: 0.9; }
.footer-main { background: #1a1a2e; color: #ccc; padding: 56px 0 32px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1fr;
  gap: 40px;
}
.footer-logo { color: #fff; font-size: 22px; margin: 0 0 8px; }
.footer-company-name { font-size: 13px; color: #999; margin: 0 0 12px; }
.footer-desc { font-size: 14px; line-height: 1.8; margin: 0; }
.footer-col h4 { color: #fff; font-size: 16px; margin: 0 0 16px; }
.footer-menu { list-style: none; padding: 0; margin: 0; }
.footer-menu a { color: #aaa; font-size: 14px; display: block; padding: 4px 0; }
.footer-menu a:hover { color: #fff; }
.footer-contact-list { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.footer-contact-list li { margin-bottom: 8px; }
.footer-contact-list a { color: #aaa; }
.footer-bottom {
  border-top: 1px solid #333;
  padding: 20px 0;
  background: #141428;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: #888;
}
.footer-bottom a { color: #888; }

/* Float contact */
.float-contact {
  position: fixed;
  right: 20px;
  bottom: 80px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-item {
  width: 48px; height: 48px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow);
  text-decoration: none;
}
.float-item:hover { background: var(--color-accent); color: #fff; }

/* Inner pages */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
  padding: 60px 0 48px;
  text-align: center;
}
.page-hero-sm { padding: 48px 0 36px; }
.page-title { font-size: 32px; margin: 0; }
.page-breadcrumb { font-size: 14px; opacity: 0.85; margin: 8px 0 0; }
.page-content { padding: 48px 20px 80px; max-width: 900px; }
.page-content.prose h2 { margin-top: 2em; color: var(--color-primary); }
.content-area { padding: 48px 20px 80px; }
.posts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.post-card { border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.post-card-link { color: inherit; display: block; }
.post-card-body { padding: 20px; }
.post-meta { font-size: 13px; color: var(--color-text-light); }
.case-badge { display: inline-block; background: var(--color-accent); color: #fff; padding: 4px 12px; border-radius: 4px; font-size: 13px; margin-bottom: 12px; }
.contact-box { margin-top: 40px; padding: 32px; background: var(--color-bg); border-radius: var(--radius); }
.contact-info-list { list-style: none; padding: 0; }
.contact-info-list li { padding: 8px 0; border-bottom: 1px solid var(--color-border); }

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 8px; margin: 40px 0; }
.pagination .page-numbers {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
}
.pagination .current { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* Responsive */
@media (max-width: 1024px) {
  .services-grid, .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: #fff;
    padding: 20px;
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.3s;
    pointer-events: none;
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu { flex-direction: column; }
  .header-phone { display: none; }
  .hero-slider { height: 480px; }
  .services-grid, .cases-grid, .clients-grid, .news-list, .posts-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section-header-row { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-cta-inner { flex-direction: column; text-align: center; }
  .hero-counter { display: none; }
  .news-thumb { width: 100px; height: 68px; }
  .news-item-link { align-items: flex-start; }
}