/* ============ 杭州致喜信息技术有限公司官网 ============ */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #0ea5e9;
  --text: #1e293b;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --border: #e2e8f0;
  --radius: 14px;
  --shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
  --max-width: 1160px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; flex-shrink: 0; }
.logo img { width: 36px; height: 36px; flex-shrink: 0; }
.logo svg { width: 36px; height: 36px; flex-shrink: 0; }
.logo-cn { line-height: 1.25; white-space: nowrap; }
.logo .logo-cn b { color: var(--primary); }
.logo .logo-en { display: block; font-size: 10.5px; font-weight: 400; color: var(--text-light); letter-spacing: 1px; }

.nav { display: flex; gap: 6px; }
.nav a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--text);
  transition: all 0.2s;
}
.nav a:hover { color: var(--primary); background: var(--primary-light); }
.nav a.active { color: var(--primary); font-weight: 600; background: var(--primary-light); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; transition: 0.25s; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 55%, #0ea5e9 100%);
  color: #fff;
  padding: 96px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero::before, .hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
}
.hero::before { width: 420px; height: 420px; top: -160px; right: -80px; }
.hero::after { width: 260px; height: 260px; bottom: -120px; left: 8%; }
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero-tag {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  font-size: 13px;
  margin-bottom: 22px;
  letter-spacing: 1px;
}
.hero h1 { font-size: 44px; line-height: 1.25; margin-bottom: 18px; }
.hero p { font-size: 18px; opacity: 0.92; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary { background: #fff; color: var(--primary); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18); }
.btn-outline { border: 1.5px solid rgba(255, 255, 255, 0.7); color: #fff; }
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); }
.btn-blue { background: var(--primary); color: #fff; }
.btn-blue:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ---------- 区块通用 ---------- */
.section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-head .en { color: var(--primary); font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; }
.section-head h2 { font-size: 32px; margin: 8px 0 12px; }
.section-head p { color: var(--text-light); font-size: 16px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: all 0.25s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary-light); }
.card .icon {
  width: 54px; height: 54px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.25);
}
.card .icon svg { width: 27px; height: 27px; stroke: #fff; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.card .icon.centered { margin-left: auto; margin-right: auto; }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--text-light); font-size: 14.5px; }
.card .more { display: inline-block; margin-top: 16px; color: var(--primary); font-size: 14px; font-weight: 600; }
.card .more:hover { text-decoration: underline; }

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stats .num { font-size: 40px; font-weight: 800; color: var(--primary); }
.stats .num span { font-size: 18px; margin-left: 2px; }
.stats .label { color: var(--text-light); font-size: 14.5px; margin-top: 4px; }

/* ---------- 案例卡 ---------- */
.case-card { padding: 0; overflow: hidden; }
.case-thumb {
  height: 170px;
  display: flex; align-items: center; justify-content: center;
}
.case-thumb svg { width: 52px; height: 52px; stroke: rgba(255, 255, 255, 0.95); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.case-card .case-body { padding: 24px; }
.case-card .case-tag {
  display: inline-block; font-size: 12px; color: var(--primary);
  background: var(--primary-light); padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
}
.case-card h3 { font-size: 18px; margin-bottom: 8px; }
.case-card p { font-size: 14px; color: var(--text-light); }

/* ---------- 文章列表 ---------- */
.news-item {
  display: flex; gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
  transition: 0.2s;
}
.news-item:hover .news-title { color: var(--primary); }
.news-date {
  flex-shrink: 0;
  width: 72px; height: 72px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-weight: 700;
}
.news-date .d { font-size: 24px; line-height: 1.1; }
.news-date .m { font-size: 12px; font-weight: 400; }
.news-item h3.news-title { font-size: 18px; margin-bottom: 6px; transition: 0.2s; }
.news-item p { font-size: 14px; color: var(--text-light); }
.news-meta { font-size: 12.5px; color: #94a3b8; margin-top: 8px; }

/* ---------- 分页（证优客风：无框数字 + 蓝底当前页 + 卡片箭头） ---------- */
.pagination {
  display: flex; justify-content: center; align-items: center;
  list-style: none;
  padding: 34px 0 10px; margin: 0;
}
.pagination > li { display: inline; }
.pagination > li > a,
.pagination > li > span {
  display: inline-block;
  padding: 4px 11px;
  line-height: 1.42857143;
  color: #000;
  text-decoration: none;
}
.pagination > li:first-child > a,
.pagination > li:first-child > span,
.pagination > li:last-child > a,
.pagination > li:last-child > span {
  font-size: 18px;
  height: 20px; line-height: 18px; margin-top: 1px;
  color: #095DFE;
  background: #fff;
  box-shadow: 0 2px 10px 0 rgb(0 0 0 / 5%);
  border-radius: 4px;
}
.pagination > li:first-child > a,
.pagination > li:first-child > span { margin-right: 24px; }
.pagination > li:last-child > a,
.pagination > li:last-child > span { margin-left: 20px; }
.pagination > li > a:hover,
.pagination > li > a:focus { color: #23527c; }
.pagination > .active > span {
  color: #fff; cursor: default;
  background: #095DFE;
  border-radius: 4px;
}
.pagination > .disabled > span { color: #777; cursor: not-allowed; }

.kb-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.kb-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 26px; transition: 0.25s;
}
.kb-item:hover { box-shadow: var(--shadow); border-color: var(--primary-light); }
.kb-item .kb-cat { font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: 1px; }
.kb-item h3 { font-size: 17px; margin: 8px 0 8px; }
.kb-item p { font-size: 13.5px; color: var(--text-light); }

/* ---------- 关于我们 ---------- */
.about-wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.about-visual {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 20px;
  min-height: 340px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #fff; text-align: center; padding: 40px;
}
.about-visual .big { font-size: 60px; font-weight: 800; }
.about-visual .sub { font-size: 15px; opacity: 0.9; margin-top: 8px; }
.timeline { margin-top: 12px; border-left: 2px solid var(--primary-light); padding-left: 26px; }
.timeline li { position: relative; padding-bottom: 22px; }
.timeline li::before {
  content: ""; position: absolute; left: -33px; top: 7px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--primary); border: 3px solid var(--primary-light);
}
.timeline .year { font-weight: 700; color: var(--primary); }
.timeline .desc { color: var(--text-light); font-size: 14px; }

/* ---------- 联系页 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info li { display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-start; }
.contact-info .ci {
  width: 44px; height: 44px; flex-shrink: 0;
  border-radius: 11px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center;
}
.contact-info .ci svg { width: 22px; height: 22px; stroke: var(--primary); fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.contact-info b { display: block; font-size: 15px; }
.contact-info span { color: var(--text-light); font-size: 14px; }
.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 11px 14px;
  border: 1px solid var(--border); border-radius: 9px;
  font-size: 14.5px; font-family: inherit; color: var(--text);
  background: var(--bg-soft);
  outline: none; transition: 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px var(--primary-light);
}
.form-group textarea { min-height: 110px; resize: vertical; }
.form-msg { margin-top: 14px; font-size: 14px; color: #16a34a; display: none; }

/* ---------- CTA 条 ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary) 60%, var(--accent));
  border-radius: 20px;
  color: #fff;
  padding: 52px 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: 26px; margin-bottom: 6px; }
.cta-band p { opacity: 0.9; }

/* ---------- 扫码咨询 ---------- */
.qr-consult {
  display: flex; align-items: center; gap: 40px; flex-wrap: wrap;
  max-width: 820px; margin: 0 auto;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 32px 36px;
}
.qr-consult-img { flex: 0 0 auto; }
.qr-consult-img img { width: 236px; height: auto; display: block; border: 1px solid var(--border); border-radius: 12px; padding: 6px; background: #fff; }
.qr-consult-text h3 { font-size: 20px; margin-bottom: 10px; }
.qr-consult-text p { color: var(--text-light); font-size: 15px; line-height: 1.8; }
.qr-consult-contact { margin-top: 10px; font-size: 14px; }
.qr-consult-contact b { color: var(--primary); }
.inline-qr { width: 116px; display: block; margin-top: 10px; border: 1px solid var(--border); border-radius: 10px; padding: 5px; background: #fff; }

/* ---------- 页脚 ---------- */
.footer { background: #0f172a; color: #cbd5e1; padding: 60px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr auto; gap: 40px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer li { margin-bottom: 10px; font-size: 14px; }
.footer a:hover { color: #fff; }
.footer .f-about { font-size: 14px; opacity: 0.85; max-width: 300px; }
.footer-qr { min-width: 120px; }
.footer-qr img { width: 116px; height: 116px; display: block; background: #fff; border-radius: 12px; padding: 6px; }
.footer-qr p { font-size: 12.5px; opacity: 0.8; margin-top: 10px; line-height: 1.7; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0; text-align: center; font-size: 13px; color: #94a3b8;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-4, .stats { grid-template-columns: repeat(2, 1fr); }
  .about-wrap, .contact-wrap { grid-template-columns: 1fr; }
  .kb-list { grid-template-columns: 1fr; }
  .qr-consult { flex-direction: column; text-align: center; padding: 26px 22px; gap: 22px; }
  .qr-consult-img img { width: 168px; height: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 32px; }
  .hero { padding: 64px 0 80px; }
  .logo-cn { font-size: 16px; }

  .nav {
    display: none;
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column;
    padding: 12px 20px 18px; gap: 2px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; }
  .nav-toggle { display: block; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .stats, .form-row { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .cta-band { padding: 36px 28px; }
  .news-item { flex-direction: column; }
}