/* 找道科技官网 - 一站式充电桩方案定制 */
:root {
  --primary: #00c853;
  --primary-dark: #00a344;
  --accent: #64dd17;
  --dark: #0d1b2a;
  --dark-light: #1b263b;
  --text: #2b2b2b;
  --text-light: #6c757d;
  --bg: #ffffff;
  --bg-light: #f8f9fa;
  --border: #e9ecef;
  --shadow: 0 10px 40px rgba(0,0,0,0.08);
  --radius: 8px;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
}
img { max-width:100%; height:auto; display:block; }
a { text-decoration:none; color:inherit; transition:all .3s ease; }
ul { list-style:none; }
.container { width:92%; max-width:1200px; margin:0 auto; }

/* Header */
.header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(13,27,42,0.95);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.header-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:70px;
}
.logo { display:flex; align-items:center; text-decoration:none; }
.logo img { height:54px; width:auto; display:block; transition:transform .3s ease; }
.logo:hover img { transform:translateY(-2px); }
.nav { display:flex; gap:32px; }
.nav a {
  color: rgba(255,255,255,0.85); font-size:15px; font-weight:500;
  position:relative; padding:6px 0;
}
.nav a:hover, .nav a.active { color: var(--primary); }
.nav a::after {
  content:''; position:absolute; bottom:0; left:0; width:0; height:2px;
  background: var(--primary); transition:width .3s ease;
}
.nav a:hover::after, .nav a.active::after { width:100%; }
.header-contact {
  display:flex; align-items:center; gap:16px;
}
.header-phone {
  color: #fff; font-size:16px; font-weight:600;
  display:flex; align-items:center; gap:6px;
}
.header-phone svg { width:18px; height:18px; fill:var(--primary); }
.mobile-menu-btn {
  display:none; background:none; border:none; color:#fff; cursor:pointer;
}

/* Buttons */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 28px; border-radius:var(--radius); font-size:15px; font-weight:600;
  border:none; cursor:pointer; transition:all .3s ease;
}
.btn-primary { background: var(--primary); color:#fff; }
.btn-primary:hover { background: var(--primary-dark); transform:translateY(-2px); box-shadow:0 6px20px rgba(0,200,83,0.3); }
.btn-outline { background:transparent; color:var(--primary); border:2px solid var(--primary); }
.btn-outline:hover { background:var(--primary); color:#fff; }
.btn-white { background:#fff; color:var(--dark); }
.btn-white:hover { background:var(--bg-light); }

/* Hero */
.hero {
  position:relative; min-height:100vh; display:flex; align-items:center;
  background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
  overflow:hidden; padding-top:70px;
}
.hero::before {
  content:''; position:absolute; inset:0;
  background:
    radial-gradient(circle at 20% 30%, rgba(0,200,83,0.08) 0%, transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(100,221,23,0.06) 0%, transparent 40%);
  opacity:1;
}
.hero::after {
  content:''; position:absolute; inset:0;
  background: radial-gradient(circle at 70% 50%, rgba(0,200,83,0.10) 0%, transparent 50%);
}
.hero-inner { position:relative; z-index:2; display:grid; grid-template-columns:1.1fr 0.9fr; gap:60px; align-items:center; }
.hero-title {
  font-size:52px; font-weight:800; color:#fff; line-height:1.2;
  margin-bottom:24px; letter-spacing:-1px;
}
.hero-title span { color:var(--primary); }
.hero-subtitle {
  font-size:20px; color:rgba(255,255,255,0.75); margin-bottom:36px;
  max-width:520px;
}
.hero-btns { display:flex; gap:16px; flex-wrap:wrap; }
.hero-stats {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:48px;
}
.hero-stat h4 { font-size:36px; color:var(--primary); font-weight:800; }
.hero-stat p { color:rgba(255,255,255,0.6); font-size:14px; }
.hero-visual {
  position:relative; display:flex; justify-content:center; align-items:center;
}
.hero-visual img {
  max-height:420px; filter:drop-shadow(0 30px 60px rgba(0,0,0,0.4));
  animation:float 6s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform:translateY(0); }
  50% { transform:translateY(-16px); }
}

/* Section */
.section { padding:90px 0; }
.section-light { background:var(--bg-light); }
.section-header { text-align:center; max-width:760px; margin:0 auto 56px; }
.section-header h2 {
  font-size:36px; font-weight:800; color:var(--dark); margin-bottom:16px;
}
.section-header p { color:var(--text-light); font-size:17px; }
.section-title-small {
  display:inline-block; color:var(--primary); font-weight:700; font-size:14px;
  text-transform:uppercase; letter-spacing:2px; margin-bottom:10px;
}

/* Features / Cards */
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.card {
  background:#fff; border-radius:var(--radius); padding:36px 28px;
  box-shadow:var(--shadow); transition:all .3s ease; border:1px solid var(--border);
}
.card:hover { transform:translateY(-8px); box-shadow:0 20px50px rgba(0,0,0,0.12); }
.card-icon {
  width:60px; height:60px; border-radius:14px; background:rgba(0,200,83,0.08);
  display:flex; align-items:center; justify-content:center; margin-bottom:22px;
}
.card-icon svg { width:30px; height:30px; fill:var(--primary); }
.card h3 { font-size:20px; margin-bottom:12px; color:var(--dark); }
.card p { color:var(--text-light); font-size:15px; }

/* Products */
.product-category { margin-bottom:64px; }
.category-title {
  font-size:26px; font-weight:700; color:var(--dark); margin-bottom:28px;
  padding-left:16px; border-left:4px solid var(--primary);
}
.product-list { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:24px; }
.product-card {
  background:#fff; border-radius:var(--radius); overflow:hidden;
  box-shadow:var(--shadow); border:1px solid var(--border); transition:all .3s ease;
}
.product-card:hover { transform:translateY(-6px); box-shadow:0 20px50px rgba(0,0,0,0.12); }
.product-img { height:200px; background:var(--bg-light); display:flex; align-items:center; justify-content:center; padding:20px; }
.product-img img { max-height:100%; object-fit:contain; }
.product-body { padding:24px; }
.product-body h3 { font-size:18px; margin-bottom:8px; color:var(--dark); }
.product-body .model { color:var(--primary); font-weight:700; font-size:14px; margin-bottom:12px; display:block; }
.product-body p { color:var(--text-light); font-size:14px; margin-bottom:16px; }
.product-meta { display:flex; gap:16px; font-size:13px; color:var(--text-light); }

/* Solutions */
.solution-item {
  display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center;
  margin-bottom:64px;
}
.solution-item:nth-child(even) .solution-text { order:2; }
.solution-item:nth-child(even) .solution-img { order:1; }
.solution-img { border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); }
.solution-img img { width:100%; height:340px; object-fit:cover; }
.solution-text h3 { font-size:28px; margin-bottom:16px; color:var(--dark); }
.solution-text p { color:var(--text-light); margin-bottom:20px; }
.solution-features li {
  padding:8px 0; padding-left:28px; position:relative; color:var(--text);
}
.solution-features li::before {
  content:'✓'; position:absolute; left:0; color:var(--primary); font-weight:700;
}

/* Cases */
.cases-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.case-card {
  position:relative; border-radius:var(--radius); overflow:hidden; height:320px;
  box-shadow:var(--shadow); cursor:pointer;
}
.case-card img { width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.case-card:hover img { transform:scale(1.08); }
.case-overlay {
  position:absolute; inset:0; background:linear-gradient(to top, rgba(13,27,42,0.9) 0%, transparent 60%);
  display:flex; flex-direction:column; justify-content:flex-end; padding:24px;
  color:#fff;
}
.case-overlay h3 { font-size:20px; margin-bottom:6px; }
.case-overlay p { font-size:14px; color:rgba(255,255,255,0.75); }
.case-more {
  display:inline-block; margin-top:10px; color:var(--primary);
  font-size:14px; font-weight:600; transition:transform .3s ease;
}
.case-card:hover .case-more { transform:translateX(4px); }
.case-tag {
  position:absolute; top:16px; left:16px; background:var(--primary);
  color:#fff; padding:4px 12px; border-radius:20px; font-size:12px; font-weight:600;
  z-index:2;
}

/* 案例详情弹窗 */
.case-modal {
  position:fixed; inset:0; z-index:2000; display:none;
  align-items:center; justify-content:center; padding:20px;
}
.case-modal.open { display:flex; }
.case-modal-mask { position:absolute; inset:0; background:rgba(8,15,25,0.7); backdrop-filter:blur(2px); }
.case-modal-box {
  position:relative; z-index:1; display:flex; flex-wrap:wrap; gap:0;
  background:#fff; border-radius:var(--radius); overflow:hidden; max-width:880px; width:100%;
  max-height:88vh; box-shadow:0 30px 80px rgba(0,0,0,0.35); animation:modalIn .25s ease;
}
@keyframes modalIn { from { transform:translateY(20px); opacity:0; } to { transform:translateY(0); opacity:1; } }
.case-modal-media { flex:1 1 360px; min-height:280px; background:#0d1b2a; }
.case-modal-media .cm-img { width:100%; height:100%; object-fit:cover; display:block; }
.case-modal-info { flex:1 1 360px; padding:32px; overflow-y:auto; }
.case-modal-info .cm-cat {
  position:static; display:inline-block; margin-bottom:12px;
}
.case-modal-info .cm-title { font-size:24px; color:var(--dark); margin-bottom:6px; line-height:1.35; }
.case-modal-info .cm-date { color:#8a94a6; font-size:14px; margin-bottom:16px; }
.case-modal-info .cm-detail { color:#46506a; font-size:15px; line-height:1.8; }
.case-modal-close {
  position:absolute; top:12px; right:14px; z-index:3; width:36px; height:36px;
  border:none; border-radius:50%; background:rgba(13,27,42,0.55); color:#fff;
  font-size:22px; line-height:1; cursor:pointer; transition:background .3s ease;
}
.case-modal-close:hover { background:rgba(13,27,42,0.85); }
@media (max-width:680px) {
  .case-modal-box { flex-direction:column; max-height:90vh; }
  .case-modal-media { min-height:200px; }
}

/* News */
.news-list { display:flex; flex-direction:column; gap:20px; }
.news-item {
  display:grid; grid-template-columns:110px 1fr; gap:24px; background:#fff;
  border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow);
  border:1px solid var(--border); transition:all .3s ease;
}
.news-item:hover { transform:translateX(8px); }
.news-date {
  background:var(--dark); color:#fff; display:flex; flex-direction:column;
  align-items:center; justify-content:center; padding:20px;
}
.news-date .day { font-size:32px; font-weight:800; line-height:1; }
.news-date .month { font-size:14px; opacity:0.8; }
.news-content { padding:22px 24px 22px 0; }
.news-content h3 { font-size:18px; margin-bottom:8px; color:var(--dark); }
.news-content p { color:var(--text-light); font-size:14px; }

/* About */
.about-content { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.about-text h2 { font-size:36px; margin-bottom:20px; color:var(--dark); }
.about-text p { color:var(--text-light); margin-bottom:16px; }
.about-img { position:relative; }
.about-img img { border-radius:var(--radius); box-shadow:var(--shadow); }
.about-stats {
  display:grid; grid-template-columns:repeat(2,1fr); gap:20px; margin-top:32px;
}
.about-stat {
  background:#fff; border-radius:var(--radius); padding:24px; text-align:center;
  box-shadow:var(--shadow);
}
.about-stat h4 { font-size:32px; color:var(--primary); font-weight:800; }
.about-stat p { color:var(--text-light); font-size:14px; }

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding:80px 0; text-align:center; color:#fff;
}
.cta h2 { font-size:36px; margin-bottom:16px; }
.cta p { font-size:18px; opacity:0.9; margin-bottom:32px; }

/* Contact */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; }
.contact-info h3 { font-size:28px; margin-bottom:24px; color:var(--dark); }
.contact-info-item { display:flex; gap:16px; margin-bottom:24px; }
.contact-info-item svg { width:24px; height:24px; fill:var(--primary); flex-shrink:0; }
.contact-info-item h4 { font-size:16px; margin-bottom:4px; color:var(--dark); }
.contact-info-item p { color:var(--text-light); font-size:15px; }
.contact-form {
  background:#fff; padding:36px; border-radius:var(--radius); box-shadow:var(--shadow);
}
.form-group { margin-bottom:20px; }
.form-group label { display:block; margin-bottom:8px; font-weight:600; color:var(--dark); }
.form-group input, .form-group textarea, .form-group select {
  width:100%; padding:12px 16px; border:1px solid var(--border);
  border-radius:var(--radius); font-size:15px; font-family:inherit;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline:none; border-color:var(--primary);
}

/* Footer */
.footer { background:var(--dark); color:rgba(255,255,255,0.7); padding:64px 0 24px; }
.footer-grid { display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px; }
.footer-brand .logo { margin-bottom:20px; }
.footer-brand .logo img { height:64px; }
.footer-brand p { font-size:14px; line-height:1.8; }
.footer h4 { color:#fff; font-size:16px; margin-bottom:20px; }
.footer-links li { margin-bottom:12px; }
.footer-links a { color:rgba(255,255,255,0.7); font-size:14px; }
.footer-links a:hover { color:var(--primary); }
.footer-contact li { display:flex; gap:10px; margin-bottom:12px; font-size:14px; }
.footer-contact svg { width:18px; height:18px; fill:var(--primary); flex-shrink:0; }
.footer-bottom {
  border-top:1px solid rgba(255,255,255,0.08); padding-top:24px;
  text-align:center; font-size:13px; color:rgba(255,255,255,0.5);
}

/* Page Banner */
.page-banner {
  position:relative; padding:160px 0 90px; background:linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
  color:#fff; text-align:center;
}
.page-banner::before {
  content:''; position:absolute; inset:0;
  background:
    radial-gradient(circle at 15% 50%, rgba(0,200,83,0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 50%, rgba(100,221,23,0.08) 0%, transparent 45%);
}
.page-banner-inner { position:relative; z-index:2; }
.page-banner h1 { font-size:42px; font-weight:800; margin-bottom:12px; }
.page-banner p { font-size:16px; color:rgba(255,255,255,0.75); }
.breadcrumb { display:flex; justify-content:center; gap:12px; margin-top:16px; font-size:14px; color:rgba(255,255,255,0.6); }
.breadcrumb a:hover { color:var(--primary); }

/* Pagination */
.pagination { display:flex; justify-content:center; gap:8px; margin-top:40px; }
.pagination a {
  width:40px; height:40px; display:flex; align-items:center; justify-content:center;
  border-radius:var(--radius); background:#fff; border:1px solid var(--border);
  color:var(--text); font-weight:600;
}
.pagination a:hover, .pagination a.active { background:var(--primary); color:#fff; border-color:var(--primary); }

/* Admin */
.admin-body { background:var(--bg-light); }
.admin-header {
  background:var(--dark); color:#fff; padding:16px 0; position:fixed; top:0; width:100%; z-index:100;
}
.admin-header-inner { display:flex; justify-content:space-between; align-items:center; }
.admin-header h1 { font-size:20px; }
.admin-main { padding:120px 0 60px; }
.admin-tabs { display:flex; gap:8px; margin-bottom:32px; }
.admin-tab {
  padding:12px 24px; background:#fff; border:1px solid var(--border); border-radius:var(--radius);
  cursor:pointer; font-weight:600; color:var(--text);
}
.admin-tab.active { background:var(--primary); color:#fff; border-color:var(--primary); }
.admin-table { width:100%; background:#fff; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); }
.admin-table table { width:100%; border-collapse:collapse; }
.admin-table th, .admin-table td { padding:16px; text-align:left; border-bottom:1px solid var(--border); }
.admin-table th { background:var(--dark); color:#fff; font-weight:600; }
.admin-table tr:hover { background:var(--bg-light); }
.admin-actions { display:flex; gap:8px; }
.admin-btn-small { padding:6px 14px; border-radius:4px; font-size:13px; border:none; cursor:pointer; }
.admin-btn-edit { background:var(--primary); color:#fff; }
.admin-btn-delete { background:#dc3545; color:#fff; }
.admin-modal {
  display:none; position:fixed; inset:0; background:rgba(0,0,0,0.6); z-index:1000;
  align-items:center; justify-content:center;
}
.admin-modal.active { display:flex; }
.admin-modal-content {
  background:#fff; border-radius:var(--radius); width:90%; max-width:700px;
  max-height:90vh; overflow-y:auto; padding:32px;
}
.admin-modal-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:24px; }
.admin-modal-header h2 { font-size:22px; }
.admin-close { background:none; border:none; font-size:28px; cursor:pointer; color:var(--text-light); }
.admin-export { margin-top:24px; }

/* Mobile */
@media (max-width: 992px) {
  .nav { display:none; position:absolute; top:70px; left:0; width:100%; background:var(--dark); flex-direction:column; padding:20px; gap:0; }
  .nav.active { display:flex; }
  .nav a { padding:14px 0; border-bottom:1px solid rgba(255,255,255,0.05); }
  .mobile-menu-btn { display:block; }
  .header-contact { display:none; }
  .hero-inner { grid-template-columns:1fr; text-align:center; }
  .hero-title { font-size:36px; }
  .hero-subtitle { margin:0 auto 32px; }
  .hero-stats { justify-content:center; }
  .hero-visual { display:none; }
  .grid-3, .grid-4, .cases-grid { grid-template-columns:1fr; }
  .about-content, .contact-grid, .solution-item, .footer-grid { grid-template-columns:1fr; }
  .solution-item:nth-child(even) .solution-text, .solution-item:nth-child(even) .solution-img { order:unset; }
}
@media (max-width: 576px) {
  .hero-title { font-size:30px; }
  .section-header h2 { font-size:28px; }
  .hero-stats { grid-template-columns:1fr; }
}

/* FAQ 常见问题 */
.faq-search { margin-bottom:24px; }
.faq-search input {
  width:100%; padding:14px 18px; font-size:15px;
  border:1px solid #e3e8ef; border-radius:10px; outline:none;
  transition:border-color .2s, box-shadow .2s;
}
.faq-search input:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(0,200,83,0.12); }
.faq-cats { display:flex; flex-wrap:wrap; gap:10px; margin-bottom:24px; }
.faq-cat {
  padding:7px 18px; border:1px solid #e3e8ef; background:#fff; color:var(--text);
  border-radius:20px; cursor:pointer; font-size:14px; transition:all .2s;
}
.faq-cat:hover { border-color:var(--primary); color:var(--primary); }
.faq-cat.active { background:var(--primary); border-color:var(--primary); color:#fff; }
.faq-list { display:flex; flex-direction:column; gap:12px; }
.faq-item { background:#fff; border:1px solid #eef1f5; border-radius:12px; overflow:hidden; transition:box-shadow .2s; }
.faq-item.open { box-shadow:0 6px 20px rgba(0,0,0,0.06); }
.faq-q {
  width:100%; display:flex; align-items:center; gap:12px; text-align:left;
  padding:18px 22px; background:none; border:none; cursor:pointer; font-size:16px; font-weight:600; color:var(--dark);
}
.faq-q-text { flex:1; }
.faq-cat-tag {
  flex:none; font-size:12px; font-weight:500; color:var(--primary);
  background:rgba(0,200,83,0.1); padding:3px 10px; border-radius:12px;
}
.faq-arrow { flex:none; font-size:22px; color:var(--primary); line-height:1; width:20px; text-align:center; }
.faq-a { max-height:0; overflow:hidden; transition:max-height .3s ease; }
.faq-item.open .faq-a { max-height:600px; }
.faq-a p { padding:0 22px 20px; color:var(--text); line-height:1.9; font-size:15px; }
.faq-empty { font-size:15px; }

/* 友情链接 */
.section-friends { background:#f7fafc; }
.friends-list { display:flex; flex-wrap:wrap; gap:20px; justify-content:center; }
.friend-card {
  display:flex; align-items:center; gap:16px;
  background:#fff; border:1px solid #e9eef3; border-radius:14px;
  padding:18px 24px; min-width:260px; max-width:360px;
  text-decoration:none; transition:all .25s ease;
  box-shadow:0 2px 8px rgba(0,0,0,0.04);
}
.friend-card:hover {
  transform:translateY(-4px);
  box-shadow:0 10px 24px rgba(0,0,0,0.08);
  border-color:var(--primary);
}
.friend-card img {
  width:56px; height:56px; object-fit:contain; border-radius:10px;
  background:#f5f7fa; padding:4px; flex-shrink:0;
}
.friend-info { display:flex; flex-direction:column; gap:4px; }
.friend-info strong { font-size:17px; color:var(--dark); font-weight:700; }
.friend-info span { font-size:13px; color:#6c757d; line-height:1.5; }

/* 相关推荐 - 站内长尾词内链 */
.rel-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px;}
.rel-links a{display:inline-block;padding:10px 20px;background:#fff;border:1px solid var(--border);border-radius:30px;color:var(--primary);font-size:14px;font-weight:600;text-decoration:none;transition:all .2s ease;}
.rel-links a:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,200,83,0.22);}