:root { --bk-green: #176443; --bk-ink: #19332b; --bk-border: #dde6e1; --bk-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif; }
html { scroll-padding-top: 100px; }
body.bk-site { margin: 0; font-family: var(--bk-font); }
.bk-site .mbr-fonts-style, .bk-site .display-1, .bk-site .display-2, .bk-site .display-4, .bk-site .display-5, .bk-site .display-7 { font-family: var(--bk-font); }
.bk-site .mbr-text { line-height: 1.8; }
.bk-site img { max-width: 100%; }
.bk-site img[width][height] { height: auto; }
.bk-site main { overflow-wrap: anywhere; min-width: 0; }
.bk-site main h1 { line-height: 1.35; }
.bk-site main [id] { scroll-margin-top: 100px; }
.bk-site :focus-visible { outline: 3px solid #25875e; outline-offset: 4px; }
.bk-site .bk-skip { position: fixed; top: -100px; left: 16px; z-index: 10000; background: #fff; color: var(--bk-ink); padding: 12px 20px; border: 2px solid var(--bk-green); border-radius: 6px; }
.bk-site .bk-skip:focus { top: 12px; }
.bk-header, .bk-footer { box-sizing: border-box; font: 16px/1.5 var(--bk-font); text-align: left; letter-spacing: normal; }
.bk-header *, .bk-footer * { box-sizing: border-box; }
.bk-header { position: sticky; top: 0; z-index: 1050; width: 100%; background: #fff; border-bottom: 1px solid var(--bk-border); color: var(--bk-ink); }
.bk-header .bk-header-inner { max-width: 1240px; min-height: 76px; margin: 0 auto; padding: 12px 28px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.bk-header .bk-brand { display: flex; flex-direction: column; flex-shrink: 0; color: var(--bk-ink); text-decoration: none; white-space: nowrap; }
.bk-header .bk-brand strong { font-size: 23px; line-height: 1.1; letter-spacing: 1px; font-weight: 800; }
.bk-header .bk-brand span { margin-top: 5px; font-size: 12px; color: #5c7067; letter-spacing: 2px; }
.bk-header .bk-nav-list { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.bk-header .bk-nav-list > li { margin: 0; padding: 0; list-style: none; }
.bk-header .bk-nav-list a, .bk-header summary { display: block; padding: 11px 12px; color: #30493e; border-radius: 7px; font-size: 14px; font-weight: 600; line-height: 1.5; text-decoration: none; white-space: nowrap; cursor: pointer; }
.bk-header .bk-nav-list a:hover, .bk-header summary:hover { background: #f0f6f2; color: var(--bk-green); }
.bk-header .bk-nav-list a[aria-current="page"], .bk-header .bk-product-active > summary { background: #eaf5ee; color: var(--bk-green); }
.bk-header .bk-nav-list .bk-contact { background: var(--bk-green); color: #fff; margin-left: 6px; }
.bk-header .bk-nav-list .bk-contact:hover, .bk-header .bk-nav-list .bk-contact[aria-current="page"] { background: #104b31; color: #fff; }
.bk-header details { position: relative; margin: 0; }
.bk-header summary { list-style: none; }
.bk-header summary::-webkit-details-marker { display: none; }
.bk-header summary::after { content: "⌄"; display: inline-block; margin-left: 7px; }
.bk-header details[open] > summary::after { transform: rotate(180deg); }
.bk-header .bk-submenu { position: absolute; top: calc(100% + 8px); left: 0; min-width: 172px; padding: 8px; border: 1px solid var(--bk-border); border-radius: 10px; background: #fff; box-shadow: 0 12px 28px #183c2d16; }
.bk-header .bk-menu-toggle { display: none; font: 600 14px/1.4 var(--bk-font); padding: 10px 14px; color: var(--bk-ink); background: #f3f7f4; border: 1px solid var(--bk-border); border-radius: 7px; cursor: pointer; }
.bk-footer { width: 100%; padding: 35px 24px 28px; background: #f4f7f5; border-top: 1px solid var(--bk-border); color: #52665b; }
.bk-footer .bk-footer-inner { max-width: 1184px; margin: 0 auto; }
.bk-footer .bk-footer-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.bk-footer .bk-footer-brand { margin: 0; color: var(--bk-ink); font-size: 17px; font-weight: 700; }
.bk-footer .bk-footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.bk-footer a { color: #385648; font-size: 14px; text-decoration: none; }
.bk-footer a:hover { color: var(--bk-green); text-decoration: underline; }
.bk-footer .bk-copyright { margin: 22px 0 0; font-size: 13px; color: #667970; }
.bk-breadcrumb { box-sizing: border-box; max-width: 1184px; margin: 0 auto; padding: 18px 24px; background: #fff; color: #62746a; font: 14px/1.6 var(--bk-font); }
.bk-breadcrumb a { color: var(--bk-green); text-decoration: none; }
.bk-breadcrumb span { margin-left: 10px; }
.bk-page-intro { max-width: 1184px; margin: 0 auto; padding: 12px 24px 24px; }
.bk-page-intro h1 { font-size: clamp(26px, 4vw, 40px); color: var(--bk-ink); }
.bk-site .bk-hero-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.bk-site .bk-hero-links a { padding: 10px 20px; border: 1px solid #b7cfc0; border-radius: 7px; background: #fffffff0; color: #176443; font-size: 16px; }
.bk-site .bk-product-heading { margin-bottom: 24px; text-align: center; color: var(--bk-ink); font-size: clamp(25px, 4vw, 36px); }
.bk-site .bk-product-category { font-size: 14px; color: #5c7067; }
.bk-site #content3-u .row { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 20px; margin: 0; }
.bk-site #content3-u .item { width: 100%; padding: 0; min-width: 0; }
.bk-site #content3-u .item-wrapper { height: 100%; background: #fff; border: 1px solid var(--bk-border); border-radius: 12px; overflow: hidden; }
.bk-site #content3-u .item-content { padding: 18px; }
.bk-site #content3-u .item-img { height: auto; }
.bk-site #content3-u .item-img img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: contain; background: #fff; }
.bk-site #content3-u .item-title { margin-bottom: 6px; font-size: 13px; }
.bk-site #content3-u .item-subtitle { font-size: 18px; }
.bk-site #content3-u .mbr-text { font-size: 15px; }
.bk-site .bk-table-scroll { max-width: 100%; overflow-x: auto; }
.bk-site .bk-table-filter { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; font: 16px/1.5 var(--bk-font); }
.bk-site .bk-table-filter[hidden] { display: none; }
.bk-site .bk-table-filter input { width: min(260px, 100%); padding: 10px 12px; border: 1px solid #aebfb5; border-radius: 6px; font: inherit; }
.bk-site .bk-table-status { font-size: 14px; color: #576e60; }
.bk-site .bk-notice { margin: 20px 0; padding: 18px 20px; border: 1px solid #c8dfd5; border-radius: 10px; background: #f2faf6; color: #183c2d; line-height: 1.8; }
.bk-site .bk-notice a { color: #176443; text-decoration: underline; }
.bk-site #main-content > section:first-of-type { padding-top: 3rem; }
.bk-site[data-site-page="index.html"] #main-content > section:first-of-type { padding-top: 6rem; padding-bottom: 6rem; }
.bk-site #write { padding-top: 24px; padding-bottom: 48px; }
.bk-site .testimonials-slider .user_image img { object-fit: contain; }
.bk-site .bk-qr-section { padding: 48px 24px; background: #fff; }
.bk-site .bk-qr-grid { max-width: 850px; margin: 0 auto; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.bk-site .bk-qr-card { text-align: center; border: 1px solid var(--bk-border); border-radius: 12px; padding: 24px; }
.bk-site .bk-qr-card h2 { color: var(--bk-ink); font-size: 21px; }
.bk-site .bk-qr-card img { display: block; width: 220px; max-width: 100%; height: auto; margin: 20px auto; padding: 12px; border-radius: 0; background: #fff; box-sizing: border-box; }
.bk-site .bk-qr-card p { margin-bottom: 0; color: #4f6659; font-size: 16px; line-height: 1.7; }
.bk-site main .display-2 { font-size: clamp(1.65rem, 3.8vw, 2.6rem); }
.bk-site main .display-5 { font-size: clamp(1.4rem, 3vw, 2rem); }
.bk-site main .display-7 { font-size: clamp(1rem, 1.6vw, 1.15rem); }
@media (max-width: 1000px) {
  .bk-header .bk-header-inner { flex-wrap: wrap; gap: 10px; padding: 13px 20px; min-height: 72px; }
  .bk-header.bk-ready .bk-menu-toggle { display: block; }
  .bk-header #bk-primary-nav { width: 100%; }
  .bk-header.bk-ready #bk-primary-nav { display: none; }
  .bk-header.bk-ready.bk-menu-open #bk-primary-nav { display: block; max-height: calc(100dvh - 90px); overflow-y: auto; }
  .bk-header .bk-nav-list { flex-direction: column; align-items: stretch; gap: 2px; padding: 6px 0; }
  .bk-header .bk-nav-list a, .bk-header summary { font-size: 16px; padding: 12px; }
  .bk-header .bk-submenu { position: static; box-shadow: none; margin: 4px 0 4px 12px; }
  .bk-header .bk-nav-list .bk-contact { margin-left: 0; text-align: center; }
}
@media (max-width: 600px) {
  .bk-site main .display-1 { font-size: 2.4rem; }
  .bk-site[data-site-page="index.html"] #main-content > section:first-of-type { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .bk-site .bk-breadcrumb { padding: 14px 20px; }
  .bk-site #features22-1j .icon-box { display: none; }
  .bk-site #features22-1j .text-box { width: 100%; }
  .bk-site .mbr-section-btn .btn { white-space: normal; }
  .bk-site .bk-footer-top { align-items: flex-start; flex-direction: column; gap: 16px; }
  .bk-site #write { padding-left: 20px; padding-right: 20px; }
  .bk-site .bk-qr-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .bk-site *, .bk-site *::before, .bk-site *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media print {
  .bk-header, .bk-footer, .bk-skip, .bk-table-filter { display: none !important; }
  .bk-site main { overflow: visible; }
}