/*
Theme Name: Zhijing
Author: Your Team
Version: 1.0
*/


/* 基础 */
:root {
  --max: 1100px;
  --pad: 20px;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --bg: #ffffff;
  --bg2: #f8fafc;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 20;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { font-weight: 700; letter-spacing: 0.2px; }
.nav a { margin-left: 16px; color: var(--muted); }
.nav a:hover { color: var(--text); text-decoration: none; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}
.btn.primary {
  background: #0f172a;
  border-color: #0f172a;
  color: #fff;
}
.btn + .btn { margin-left: 10px; }
.text-link { color: #2563eb; font-weight: 600; }

/* Sections */
.section { padding: 64px 0; }
.section.alt { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head h2 { margin: 0 0 10px; font-size: 28px; }
.section-head p { margin: 0; color: var(--muted); max-width: 70ch; }
.section-foot { margin-top: 18px; }

/* Hero */
.hero { padding: 72px 0; }
.hero-inner { display: grid; gap: 24px; grid-template-columns: 1.2fr 0.8fr; align-items: center; }
.hero-title { margin: 0 0 12px; font-size: 40px; line-height: 1.1; }
.hero-subtitle { margin: 0 0 18px; color: var(--muted); max-width: 60ch; }
.hero-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: #fff;
  display: grid;
  gap: 12px;
}
.kpi { display: flex; align-items: baseline; justify-content: space-between; }
.kpi-num { font-size: 28px; font-weight: 800; }
.kpi-label { color: var(--muted); }

/* Grid & Cards */
.grid { display: grid; gap: 16px; margin-top: 22px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: #fff;
}
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); }

.card.product .tag {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 10px;
}

/* Posts */
.post-title { margin: 0 0 8px; font-size: 18px; }
.post-meta { color: var(--muted); font-size: 12px; display: flex; gap: 8px; align-items: center; margin-bottom: 10px; }
.post-excerpt { margin: 0 0 12px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  background: #fff;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  gap: 16px;
  flex-wrap: wrap;
}
.footer-links a { margin-left: 14px; color: var(--muted); }

/* Responsive */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid.three { grid-template-columns: 1fr; }
  .nav { display: none; } /* 简化：移动端先隐藏，后面再做汉堡菜单 */
  .hero-title { font-size: 34px; }
}
/* Single post */
.post-single {
  max-width: 780px;
  margin: 0 auto;
}

.post-single-head {
  margin-bottom: 18px;
}

.post-single-title {
  margin: 0 0 10px;
  font-size: 36px;
  line-height: 1.15;
}

.post-single-content {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  background: #fff;
}

.post-single-content p {
  margin: 0 0 14px;
}

.post-single-content h2,
.post-single-content h3 {
  margin: 18px 0 10px;
}

.post-single-foot {
  margin-top: 18px;
}
/* Better typography inside post content */
.post-single-content {
  font-size: 16px;
  line-height: 1.8;
}

.post-single-content ul,
.post-single-content ol {
  padding-left: 22px;
  margin: 12px 0 16px;
}

.post-single-content li {
  margin: 6px 0;
}

.post-single-content blockquote {
  margin: 16px 0;
  padding: 10px 14px;
  border-left: 4px solid var(--border);
  background: var(--bg2);
  border-radius: 12px;
  color: var(--muted);
}

.post-single-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 22px 0;
}

.post-single-content a {
  color: #2563eb;
  text-decoration: underline;
  text-underline-offset: 3px;
}
/* Nav menu (wp_nav_menu outputs ul/li) */
.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav li {
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}
.nav ul.menu,
.nav ul#menu-primary,
.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 16px;
}
/* Header menu - force horizontal + remove bullets */
.site-header .nav-primary ul,
.site-header .nav-primary ul.menu {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  gap: 16px !important;
}

.site-header .nav-primary li {
  margin: 0 !important;
  padding: 0 !important;
}

.site-header .nav-primary a {
  display: inline-block;
  color: var(--muted);
  text-decoration: none;
}

.site-header .nav-primary a:hover {
  color: var(--text);
  text-decoration: none;
}

.header-inner { gap: 16px; }
.nav-primary { margin-left: auto; }

/* Mobile nav */
.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}

.nav-mobile {
  display: none;
  border-top: 1px solid var(--border);
  background: #fff;
}

.nav-mobile ul {
  list-style: none;
  margin: 0;
  padding: 12px var(--pad);
  display: grid;
  gap: 10px;
}

.nav-mobile a {
  display: block;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
}

/* Mobile menu default hidden */
.nav-mobile { display: none; }

/* Responsive */
@media (max-width: 900px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-mobile { display: none; }            /* 关键：默认不显示 */
  body.nav-open .nav-mobile { display: block; }  /* 只有打开时才显示 */
}

/* Toggle icon switch */
.nav-toggle .icon-close {
  display: none;
}

body.nav-open .nav-toggle .icon-open {
  display: none;
}

body.nav-open .nav-toggle .icon-close {
  display: inline;
}

.nav-toggle {
  width: 42px;
  height: 42px;
  font-size: 20px;
}