/* Peach And Plum — ee.peachplum.tech
   Visual system aligned with ops.peachplum.tech / data.peachplum.tech */
:root {
  --primary: #10B981;
  --primary-light: #D1FAE5;
  --primary-dark: #059669;
  --secondary: #3B82F6;
  --secondary-dark: #2563EB;
  --accent: #F59E0B;
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-light: #9CA3AF;
  --bg-white: #FFFFFF;
  --bg-gray: #F9FAFB;
  --bg-dark: #1F2937;
  --border: #E5E7EB;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --transition: all .3s ease;
  --max-width: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ============ Header ============ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.navbar { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon img { width: 36px; height: 36px; border-radius: var(--radius); }
.logo-text { font-size: 19px; font-weight: 700; color: var(--text-primary); }
.logo-text .accent { color: var(--primary); }
.logo-sub { display: block; font-size: 11px; font-weight: 500; color: var(--text-light); letter-spacing: .04em; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-item > a {
  display: block; padding: 8px 14px; border-radius: var(--radius);
  font-size: 14.5px; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition);
}
.nav-item > a:hover, .nav-item > a.active { color: var(--primary-dark); background: var(--primary-light); }
.nav-dropdown {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 230px;
  background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden;
  transform: translateY(6px); transition: var(--transition);
}
.nav-item:hover .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a {
  display: block; padding: 9px 12px; border-radius: var(--radius);
  font-size: 14px; color: var(--text-secondary);
}
.nav-dropdown a:hover { background: var(--bg-gray); color: var(--primary-dark); }
.nav-dropdown .dd-group { padding: 8px 12px 4px; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--text-light); }

.nav-actions { display: flex; align-items: center; gap: 10px; }
.lang-switch {
  font-size: 13px; font-weight: 600; color: var(--text-secondary);
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px;
  transition: var(--transition);
}
.lang-switch:hover { border-color: var(--primary); color: var(--primary-dark); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--radius); font-size: 14.5px; font-weight: 600;
  border: none; cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-secondary { background: var(--bg-white); color: var(--text-primary); border: 1.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary-dark); transform: translateY(-2px); }
.btn-sm { padding: 8px 16px; font-size: 13.5px; }

.mobile-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--text-primary); cursor: pointer; }

/* ============ Hero ============ */
.hero { background: linear-gradient(160deg, var(--bg-gray) 0%, #ecfdf5 55%, var(--bg-white) 100%); padding: 72px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero-tag {
  display: inline-block; padding: 5px 14px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-dark);
  font-size: 12.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  margin-bottom: 18px;
}
.hero-title { font-size: clamp(30px, 4vw, 44px); font-weight: 800; line-height: 1.18; letter-spacing: -.01em; }
.hero-title .hl { color: var(--primary-dark); }
.hero-desc { margin: 18px 0 28px; font-size: 16.5px; color: var(--text-secondary); max-width: 560px; }
.hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-visual {
  background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  padding: 28px; border: 1px solid var(--border);
}
.hero-visual img { border-radius: var(--radius); }
.hero-caption { margin-top: 12px; font-size: 12.5px; color: var(--text-light); text-align: center; }

/* stats strip (home) */
.stats-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.stat-card {
  background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px 22px; text-align: center; box-shadow: var(--shadow);
}
.stat-num { font-size: 28px; font-weight: 800; color: var(--primary-dark); line-height: 1.2; }
.stat-label { font-size: 12.5px; color: var(--text-secondary); margin-top: 4px; }

/* ============ Sections ============ */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-gray); }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.section-tag {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-dark);
  font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title { font-size: clamp(24px, 3vw, 32px); font-weight: 800; line-height: 1.25; }
.section-desc { margin-top: 12px; font-size: 15.5px; color: var(--text-secondary); }

/* cards */
.cards { display: grid; gap: 22px; }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 26px; transition: var(--transition); display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.card-icon {
  width: 46px; height: 46px; border-radius: var(--radius);
  background: var(--primary-light); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700;
  margin-bottom: 16px;
}
.card-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.card-desc { font-size: 14px; color: var(--text-secondary); flex: 1; }
.card-link { margin-top: 16px; font-size: 13.5px; font-weight: 600; color: var(--primary-dark); }
.card-link::after { content: " →"; }

/* series cards with image */
.series-card { overflow: hidden; padding: 0; }
.series-card .sc-img { background: var(--bg-gray); padding: 18px; border-bottom: 1px solid var(--border); }
.series-card .sc-img img { height: 160px; width: auto; margin: 0 auto; object-fit: contain; }
.series-card .sc-body { padding: 22px 24px 26px; }
.series-badge {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: var(--secondary); color: #fff; font-size: 11px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase; margin-bottom: 10px;
}
.series-badge.mccb { background: var(--primary-dark); }
.series-badge.smart { background: var(--secondary-dark); }
.series-badge.rcd { background: var(--accent); }
.sc-specs { margin: 12px 0 0; padding: 12px 0 0; border-top: 1px dashed var(--border); }
.sc-specs li { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; padding: 3px 0; }
.sc-specs .k { color: var(--text-light); }
.sc-specs .v { color: var(--text-primary); font-weight: 600; text-align: right; }

/* ============ Page hero (inner pages) ============ */
.page-hero { background: linear-gradient(140deg, var(--bg-gray), #ecfdf5); padding: 52px 0 44px; border-bottom: 1px solid var(--border); }
.breadcrumb { font-size: 12.5px; color: var(--text-light); margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--primary-dark); }
.breadcrumb .sep { margin: 0 7px; }
.page-title { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; line-height: 1.2; }
.page-lead { margin-top: 14px; font-size: 16px; color: var(--text-secondary); max-width: 780px; }
.page-hero-row { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.page-hero-img img { max-height: 240px; width: auto; margin: 0 auto; }

/* ============ Tables ============ */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--bg-white); }
table.spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.spec-table th {
  background: var(--bg-gray); text-align: left; padding: 12px 16px;
  font-weight: 700; color: var(--text-primary); border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.spec-table td { padding: 11px 16px; border-bottom: 1px solid var(--border); color: var(--text-secondary); vertical-align: top; }
.spec-table tr:last-child td { border-bottom: none; }
.spec-table tr:hover td { background: #f0fdf9; }
.spec-table td:first-child { color: var(--text-primary); font-weight: 600; }
.spec-table .num { text-align: right; white-space: nowrap; }
.table-note { margin-top: 10px; font-size: 12.5px; color: var(--text-light); }
.table-note .src { color: var(--text-secondary); }

/* ============ Content blocks ============ */
.prose p { margin-bottom: 14px; font-size: 15.5px; color: var(--text-secondary); }
.prose h2, .prose h3 { margin: 32px 0 14px; font-size: 21px; font-weight: 700; color: var(--text-primary); }
.prose ul { margin: 12px 0 18px; }
.prose li {
  position: relative; padding-left: 26px; margin-bottom: 9px;
  font-size: 15px; color: var(--text-secondary);
}
.prose li::before {
  content: ""; position: absolute; left: 4px; top: 9px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--primary);
}
.note-box {
  background: var(--primary-light); border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 16px 20px;
  font-size: 14px; color: var(--text-primary); margin: 20px 0;
}
.note-box.warn { background: #FEF3C7; border-left-color: var(--accent); }

/* gallery */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery figure { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.gallery img { width: 100%; height: 210px; object-fit: contain; background: var(--bg-gray); padding: 12px; }
.gallery figcaption { padding: 10px 14px; font-size: 12.5px; color: var(--text-light); }

/* dimension images */
.dim-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.dim-grid figure { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 14px; }
.dim-grid img { max-height: 360px; width: auto; margin: 0 auto; }

/* frame anchors table */
.frame-anchor { scroll-margin-top: 90px; }
.anchor-chip {
  display: inline-flex; padding: 6px 13px; margin: 4px 6px 4px 0;
  border: 1px solid var(--border); border-radius: 999px;
  font-size: 13px; font-weight: 600; color: var(--text-secondary);
  transition: var(--transition);
}
.anchor-chip:hover { border-color: var(--primary); color: var(--primary-dark); background: var(--primary-light); }

/* CTA band */
.cta-band { background: linear-gradient(120deg, var(--primary-dark), var(--secondary-dark)); color: #fff; padding: 56px 0; }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { font-size: 26px; font-weight: 800; }
.cta-band p { margin-top: 8px; opacity: .92; font-size: 15px; max-width: 560px; }
.cta-band .btn-primary { background: #fff; color: var(--primary-dark); }
.cta-band .btn-primary:hover { background: var(--primary-light); }

/* ============ Forms ============ */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.form-field label .req { color: var(--accent); margin-left: 3px; }
.form-field input, .form-field select, .form-field textarea {
  padding: 11px 14px; border: 1.5px solid var(--border); border-radius: var(--radius);
  font-size: 14px; font-family: inherit; background: var(--bg-white); color: var(--text-primary);
  transition: var(--transition);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(16,185,129,.15);
}
.form-field textarea { min-height: 130px; resize: vertical; }
.form-consent { display: flex; gap: 10px; align-items: flex-start; grid-column: 1 / -1; font-size: 13px; color: var(--text-secondary); }
.form-consent input { margin-top: 3px; }
.form-consent a { color: var(--primary-dark); text-decoration: underline; }
.form-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 16px; }
.form-msg { font-size: 13.5px; }
.form-msg.ok { color: var(--primary-dark); }
.form-msg.err { color: #DC2626; }

/* ============ Footer ============ */
.footer { background: var(--bg-dark); color: #fff; padding: 56px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 36px; padding-bottom: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo img { width: 32px; height: 32px; border-radius: 4px; }
.footer-logo-text { font-size: 17px; font-weight: 700; }
.footer-description { color: #9CA3AF; font-size: 13px; line-height: 1.7; }
.footer-title { font-size: 13px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 14px; color: #E5E7EB; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: #9CA3AF; font-size: 13.5px; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); }
.footer-meta { color: #9CA3AF; font-size: 12.5px; line-height: 1.8; }

.footer-bottom {
  border-top: 1px solid #374151; padding: 18px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.footer-copy { color: #6B7280; font-size: 12.5px; }
.footer-stats { display: flex; gap: 16px; align-items: center; color: #6B7280; font-size: 12px; }
.footer-stats .fs-item { display: inline-flex; gap: 6px; align-items: baseline; }
.footer-stats .fs-num { color: #9CA3AF; font-weight: 700; font-variant-numeric: tabular-nums; }
#site-stats:empty { display: none; }

/* ============ Contact page ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.contact-list { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-icon {
  width: 42px; height: 42px; flex: 0 0 42px; border-radius: var(--radius);
  background: var(--primary-light); color: var(--primary-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 700;
}
.contact-text h4 { font-size: 13px; font-weight: 700; color: var(--text-primary); margin-bottom: 3px; }
.contact-text p { font-size: 14.5px; color: var(--text-secondary); }
.contact-text a { color: var(--primary-dark); font-weight: 600; }
.contact-text a:hover { text-decoration: underline; }
.wechat-qr { width: 108px; height: 108px; border-radius: var(--radius); border: 1px solid var(--border); }
.contact-address {
  font-size: 15px; font-weight: 600; color: var(--text-primary); line-height: 1.7;
  padding: 14px 18px; background: var(--bg-gray); border-radius: var(--radius);
  border-left: 4px solid var(--primary);
}
.contact-map {
  margin-top: 18px; min-height: 320px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  background: repeating-linear-gradient(45deg, var(--bg-gray), var(--bg-gray) 12px, #f3f4f6 12px, #f3f4f6 24px);
  display: flex; align-items: center; justify-content: center;
}
.map-fallback { padding: 24px; text-align: center; color: var(--text-light); font-size: 13.5px; max-width: 360px; }
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ============ Utility ============ */
.mt-0 { margin-top: 0; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; }
.mb-24 { margin-bottom: 24px; } .mb-32 { margin-bottom: 32px; }
.text-center { text-align: center; }
.two-col { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: start; }
.placeholder-img {
  background: repeating-linear-gradient(45deg, var(--bg-gray), var(--bg-gray) 12px, #f3f4f6 12px, #f3f4f6 24px);
  border: 1px dashed var(--border); border-radius: var(--radius-lg);
  padding: 48px 24px; text-align: center; color: var(--text-light); font-size: 14px;
}

/* ============ Responsive ============ */
@media (max-width: 980px) {
  .hero-grid, .two-col, .page-hero-row { grid-template-columns: 1fr; }
  .stats-strip, .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg-white); border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch; padding: 12px; gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding-left: 12px; }
  .mobile-toggle { display: block; }
  .stats-strip, .cards-2, .cards-3, .cards-4, .form-grid, .gallery, .dim-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0; }
  .section { padding: 48px 0; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
}