:root {
  color-scheme: light;
  --green: #006b40;
  --deep: #003f2e;
  --yellow: #ffd742;
  --ink: #172e26;
  --muted: #5a6962;
  --line: #dbe4df;
  --pale: #f3f6f4;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--pale); color: var(--ink); font-family: Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.6; }
a { color: inherit; }
a:focus-visible { outline: 3px solid #c08700; outline-offset: 5px; }
.masthead { background: #fff; border-bottom: 1px solid var(--line); }
.header-inner { max-width: 1100px; margin: 0 auto; padding: 22px 32px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.brand { display: block; width: 270px; height: 53px; position: relative; overflow: hidden; flex: 0 0 270px; }
.brand img { position: absolute; width: 300px; height: auto; max-width: none; left: -15px; top: -23px; }
.domain { color: var(--green); font-size: 15px; font-weight: 700; }
.page { max-width: 1100px; margin: 0 auto; padding: 38px 32px 42px; }
.notice { display: flex; align-items: flex-start; gap: 14px; padding: 18px 22px; border: 1px solid #eadc99; border-radius: 10px; background: #fff9df; }
.notice-mark { width: 10px; height: 10px; flex: 0 0 10px; border-radius: 50%; background: #997900; margin-top: 9px; }
.notice strong { font-size: 17px; }
.notice p { margin: 3px 0 0; color: #605b42; font-size: 15px; }
.content { margin-top: 32px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 42px; align-items: stretch; }
.intro { padding: 20px 0 12px; }
.eyebrow { color: var(--green); font-weight: 700; letter-spacing: 1.8px; font-size: 12px; margin: 0 0 12px; }
h1 { margin: 0; font-size: clamp(32px, 4.2vw, 46px); line-height: 1.18; letter-spacing: -1.3px; font-weight: 700; }
.lead { font-size: 20px; line-height: 1.6; margin: 20px 0 24px; max-width: 500px; color: #354d42; }
.services { padding: 0; margin: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 9px; }
.services li { border: 1px solid #cddbd2; background: #fff; padding: 6px 12px; border-radius: 5px; font-size: 14px; }
.office { border-top: 1px solid var(--line); margin-top: 30px; padding-top: 24px; }
.office h2 { font-size: 15px; margin: 0 0 6px; }
address { color: var(--muted); font-size: 15px; line-height: 1.75; font-style: normal; }
.contact { background: var(--deep); color: #fff; padding: 30px 32px; border-radius: 12px; border-top: 5px solid var(--yellow); }
.contact h2 { font-size: 21px; line-height: 1.35; margin: 0 0 22px; }
.contact-item { margin-bottom: 20px; }
.contact-label { display: block; color: #c9dfd4; font-size: 13px; margin-bottom: 3px; }
.phone { display: inline-block; font-size: 31px; font-weight: 700; line-height: 1.4; text-decoration: none; letter-spacing: .3px; }
.secondary-phone { font-size: 25px; }
.phone:hover, .email:hover { text-decoration: underline; text-underline-offset: 5px; }
.email { display: inline-block; font-size: 17px; text-decoration: none; overflow-wrap: anywhere; }
.email-item { border-top: 1px solid #346552; padding-top: 17px; margin-bottom: 24px; }
.zalo { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 18px; color: #153c26; background: var(--yellow); border-radius: 6px; text-decoration: none; font-size: 15px; font-weight: 700; }
.zalo:hover { background: #ffe575; }
.contact a:focus-visible { outline-color: #fff; }
.footer { max-width: 1036px; margin: 0 auto; padding: 22px 0 30px; border-top: 1px solid var(--line); color: var(--muted); display: flex; justify-content: space-between; gap: 12px 20px; font-size: 13px; }
.footer p { margin: 0; }
@media (max-width: 760px) {
  .header-inner { padding: 18px 24px; }
  .domain { display: none; }
  .page { padding: 24px; }
  .content { grid-template-columns: minmax(0, 1fr); gap: 28px; margin-top: 26px; }
  .intro { padding: 4px 0 0; }
  .lead { font-size: 18px; max-width: none; }
  .office { margin-top: 24px; padding-top: 20px; }
  .contact { padding: 26px; }
  .footer { margin: 0 24px; flex-direction: column; gap: 4px; padding: 20px 0 26px; }
  .wide-only { display: none; }
}
@media (max-width: 360px) {
  .header-inner { padding-left: 16px; padding-right: 16px; }
  .page { padding: 20px 16px; }
  .notice { padding: 15px; gap: 10px; }
  .contact { padding: 22px; }
  .phone { font-size: 28px; }
  .secondary-phone { font-size: 24px; }
  .footer { margin-left: 16px; margin-right: 16px; }
}