/**
 * Trang chủ Bách Khoa VRV — bộ style chuyên nghiệp (v3).
 * Chỉ nạp ở trang chủ (is_front_page / trang-chu). Prefix .bk- tránh đụng theme.
 */

/* Bảng màu theo daikin.com.vn: xanh đậm #104a8b, cyan #44c8f5, chữ #1d1d1f */
:root {
  --bk-navy: #0d3565;
  --bk-navy-2: #104a8b;
  --bk-blue: #104a8b;
  --bk-blue-d: #0b3a6f;
  --bk-gold: #44c8f5;
  --bk-sky: #eaf4fb;
  --bk-ink: #1d1d1f;
  --bk-muted: #5c5f67;
  --bk-line: #e3e8ee;
  --bk-shadow: 0 8px 30px rgba(16, 74, 139, .08);
  --bk-shadow-lg: 0 18px 50px rgba(16, 74, 139, .16);
  --bk-radius: 18px;
}

/* ---------- nhãn eyebrow + tiêu đề section ---------- */
.bk-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--bk-blue);
  background: var(--bk-sky);
  border-radius: 99px;
  padding: 7px 18px;
  margin-bottom: 14px;
}
.bk-dark .bk-eyebrow { color: #7fd8ff; background: rgba(255, 255, 255, .1); }
.bk-h2 {
  font-size: 2em;
  font-weight: 700;
  color: var(--bk-navy);
  line-height: 1.25;
  margin-bottom: 10px;
}
.bk-sub { color: var(--bk-muted); max-width: 660px; margin: 0 auto 8px; }

/* ---------- hero ---------- */
.bk-hero { position: relative; }
.bk-hero .bg::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(92deg, rgba(6, 22, 42, .93) 0%, rgba(6, 22, 42, .72) 45%, rgba(6, 22, 42, .25) 100%);
}
.bk-hero .text-box { z-index: 2; }
.bk-hero h1 { color: #fff; font-size: 2.7em; line-height: 1.18; font-weight: 800; margin: 14px 0 16px; }
.bk-hero h1 .bk-accent { color: #44c8f5; }
.bk-hero .bk-hero-sub { color: #d6e4f2; font-size: 1.06em; max-width: 560px; }
.bk-hero-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .28);
  backdrop-filter: blur(4px);
  border-radius: 99px; padding: 9px 20px;
  color: #fff; font-size: 13.5px; font-weight: 600;
}
.bk-hero-pill strong { color: #7fd8ff; font-size: 15px; letter-spacing: .5px; }
.bk-hero-trust { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 26px; }
.bk-hero-trust span { display: inline-flex; align-items: center; gap: 8px; color: #bcd3e8; font-size: 13.5px; }
.bk-hero-trust svg { width: 17px; height: 17px; color: #79d6a3; flex: none; }

/* nút */
.bk-hero .button, .bk-cta-band .button { border-radius: 10px; }
.button.bk-btn-gold {
  background-color: var(--bk-gold) !important;
  color: #0d3565 !important;
  font-weight: 700;
}
.button.bk-btn-gold:hover { background-color: #63d4ff !important; transform: translateY(-2px); }

/* ---------- thanh quick link ---------- */
.bk-quick { border-bottom: 1px solid var(--bk-line); }
.bk-quick a.bk-quick-item {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 20px 10px; font-weight: 600; color: var(--bk-navy);
  border-radius: 12px; transition: .2s;
}
.bk-quick a.bk-quick-item:hover { background: var(--bk-sky); color: var(--bk-blue); }
.bk-quick svg { width: 20px; height: 20px; color: var(--bk-blue); flex: none; }

/* ---------- thẻ USP ---------- */
.bk-card {
  background: #fff;
  border: 1px solid var(--bk-line);
  border-radius: var(--bk-radius);
  padding: 30px 22px;
  height: 100%;
  text-align: center;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.bk-card:hover { transform: translateY(-6px); box-shadow: var(--bk-shadow-lg); border-color: transparent; }
.bk-ic {
  width: 64px; height: 64px; margin: 0 auto 16px;
  border-radius: 18px;
  background: var(--bk-sky);
  display: flex; align-items: center; justify-content: center;
}
.bk-ic svg { width: 30px; height: 30px; color: var(--bk-blue); }
.bk-card h3 { font-size: 1.02em; color: var(--bk-navy); margin-bottom: 8px; }
.bk-card p { font-size: .88em; color: var(--bk-muted); margin: 0; }

/* ---------- dải số liệu ---------- */
.bk-stats { background: linear-gradient(115deg, var(--bk-blue) 0%, var(--bk-navy-2) 100%) !important; }
.bk-stat { text-align: center; position: relative; }
.bk-stat .bk-n { font-size: 2.7em; font-weight: 800; color: #fff; line-height: 1.1; }
.bk-stat .bk-n small { font-size: .55em; color: #7fd8ff; }
.bk-stat .bk-l { color: #c9def0; font-size: .9em; margin-top: 4px; }

/* ---------- khối why (2 cột) ---------- */
.bk-check { list-style: none; margin: 18px 0 22px; padding: 0; }
.bk-check li { position: relative; padding: 8px 0 8px 36px; color: var(--bk-ink); }
.bk-check li svg {
  position: absolute; left: 0; top: 9px;
  width: 22px; height: 22px; color: #fff;
  background: var(--bk-blue); border-radius: 50%; padding: 5px;
}
.bk-frame { border-radius: var(--bk-radius); box-shadow: var(--bk-shadow-lg); overflow: hidden; }
.bk-frame img { display: block; width: 100%; }

/* ---------- thẻ sản phẩm ---------- */
.bk-pcard {
  background: #fff; border-radius: var(--bk-radius); overflow: hidden;
  box-shadow: var(--bk-shadow); height: 100%;
  transition: transform .25s, box-shadow .25s;
}
.bk-pcard:hover { transform: translateY(-6px); box-shadow: var(--bk-shadow-lg); }
.bk-pcard img { width: 100%; display: block; }
.bk-pcard .bk-pbody { padding: 20px 24px 26px; }
.bk-pcard .bk-chip {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--bk-blue); background: var(--bk-sky);
  border-radius: 99px; padding: 4px 12px; margin-bottom: 10px;
}
.bk-pcard h3 { font-size: 1.12em; margin: 0 0 6px; }
.bk-pcard h3 a { color: var(--bk-navy); }
.bk-pcard p { font-size: .9em; color: var(--bk-muted); margin-bottom: 12px; }
.bk-pcard .bk-more { font-weight: 700; font-size: .92em; }

.bk-tile {
  display: block; background: #fff; border: 1px solid var(--bk-line);
  border-radius: 14px; overflow: hidden; text-align: center;
  transition: .25s; height: 100%;
}
.bk-tile:hover { transform: translateY(-4px); box-shadow: var(--bk-shadow-lg); border-color: transparent; }
.bk-tile img { width: 100%; display: block; }
.bk-tile b { display: block; color: var(--bk-navy); padding: 12px 10px 4px; font-size: .95em; }
.bk-tile span { display: block; color: var(--bk-muted); font-size: .8em; padding: 0 12px 14px; }

/* ---------- lưới giải pháp ---------- */
.bk-sol {
  display: block; background: #fff; border: 1px solid var(--bk-line);
  border-left: 4px solid transparent; border-radius: 14px;
  padding: 20px 22px; height: 100%; transition: .22s;
}
.bk-sol:hover { border-left-color: var(--bk-gold); box-shadow: var(--bk-shadow); transform: translateX(3px); }
.bk-sol b { display: flex; justify-content: space-between; align-items: center; color: var(--bk-navy); font-size: 1em; margin-bottom: 5px; }
.bk-sol b svg { width: 17px; height: 17px; color: var(--bk-gold); flex: none; }
.bk-sol span { color: var(--bk-muted); font-size: .85em; line-height: 1.55; }

/* ---------- quy trình ---------- */
.bk-step { text-align: center; position: relative; padding: 0 12px; }
.bk-step .bk-num {
  width: 58px; height: 58px; margin: 0 auto 16px;
  border-radius: 50%; background: var(--bk-gold); color: var(--bk-navy);
  display: flex; align-items: center; justify-content: center;
  font-size: 25px; font-weight: 800;
  box-shadow: 0 0 0 8px rgba(68, 200, 245, .18);
}
.bk-step h3 { color: #fff; font-size: 1.05em; margin-bottom: 8px; }
.bk-step p { color: #b9cde0; font-size: .88em; }
.bk-step a { color: #7fc4ec; font-weight: 700; font-size: .9em; }

/* ---------- dự án ---------- */
.bk-proj { border-radius: var(--bk-radius); overflow: hidden; box-shadow: var(--bk-shadow); transition: .25s; }
.bk-proj:hover { transform: translateY(-6px); box-shadow: var(--bk-shadow-lg); }
.bk-proj img { display: block; width: 100%; }

/* ---------- testimonial ---------- */
.bk-quote {
  background: #fff; border-radius: var(--bk-radius); padding: 30px 28px 26px;
  box-shadow: var(--bk-shadow); height: 100%; position: relative;
}
.bk-quote::before {
  content: "\201C";
  position: absolute; top: 6px; right: 22px;
  font-size: 72px; line-height: 1; color: var(--bk-sky); font-family: Georgia, serif;
}
.bk-quote .bk-stars { color: #f6a800; letter-spacing: 3px; font-size: 15px; margin-bottom: 10px; }
.bk-quote p { font-size: .92em; color: var(--bk-ink); font-style: italic; }
.bk-quote .bk-who { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.bk-quote .bk-av {
  width: 44px; height: 44px; border-radius: 50%; flex: none;
  background: var(--bk-sky); color: var(--bk-blue);
  display: flex; align-items: center; justify-content: center; font-weight: 800;
}
.bk-quote .bk-who b { display: block; color: var(--bk-navy); font-size: .92em; }
.bk-quote .bk-who span { color: var(--bk-muted); font-size: .8em; }

/* ---------- form lead ---------- */
.bk-formcard { background: #fff; border-radius: var(--bk-radius); padding: 30px 28px; box-shadow: var(--bk-shadow-lg); }
.bk-formcard h3 { color: var(--bk-navy); font-size: 1.15em; margin-bottom: 14px; }
.bk-lead-info p { color: #c9def0; }
.bk-lead-info .bk-row { display: flex; align-items: center; gap: 12px; color: #dce8f5; margin: 12px 0; font-size: .95em; }
.bk-lead-info .bk-row svg {
  width: 40px; height: 40px; flex: none; color: #7fd8ff;
  background: rgba(255, 255, 255, .08); border-radius: 12px; padding: 9px;
}
.bk-lead-info .bk-row strong { color: #7fd8ff; }

/* ---------- chỉnh nhẹ form CF7 trong card ---------- */
/* Card trắng nằm trong section dark của Flatsome: ép lại màu chữ tối,
   nếu không nhãn trường sẽ trắng-trên-trắng (tàng hình). */
.bk-formcard,
.dark .bk-formcard,
.bk-formcard p,
.dark .bk-formcard p,
.bk-formcard label,
.dark .bk-formcard label {
  color: var(--bk-ink) !important;
  font-weight: 500;
}
.bk-formcard label { display: block; font-size: .88em; margin-bottom: 2px; }
.bk-formcard .wpcf7-form p { margin-bottom: 12px; }
.dark .bk-formcard h3, .bk-formcard h3 { color: var(--bk-navy) !important; }

.bk-formcard .wpcf7-form input[type="text"],
.bk-formcard .wpcf7-form input[type="tel"],
.bk-formcard .wpcf7-form input[type="email"],
.bk-formcard .wpcf7-form select,
.bk-formcard .wpcf7-form textarea {
  border: 1.5px solid #dbe6ef; border-radius: 10px; background: #fbfdff;
  padding: 11px 14px; margin-bottom: 4px; box-shadow: none;
  color: var(--bk-ink) !important;
}
/* select của Flatsome bị ép height thấp làm cắt chữ — nới lại */
.bk-formcard .wpcf7-form select {
  height: auto; min-height: 47px; line-height: 1.4;
}
.bk-formcard .wpcf7-form textarea { min-height: 110px; }
.bk-formcard .wpcf7-form input:focus,
.bk-formcard .wpcf7-form select:focus,
.bk-formcard .wpcf7-form textarea:focus { border-color: var(--bk-blue); }
.bk-formcard .wpcf7-form input[type="submit"] {
  width: 100%; background-color: var(--bk-blue); border-radius: 10px;
  font-weight: 700; letter-spacing: .3px;
}
.bk-formcard .wpcf7-form input[type="submit"]:hover { background-color: var(--bk-blue-d); }

/* ---------- responsive ---------- */
@media (max-width: 849px) {
  .bk-hero h1 { font-size: 1.9em; }
  .bk-h2 { font-size: 1.55em; }
  .bk-stat .bk-n { font-size: 2em; }
}