/* Trang đích quảng cáo Tìm kiếm King Park (vinbacninh.phuonghoabds.com), dựng 04/10/2026 */
:root {
  --paper: #f6f4ee; --surface: #fff; --ink: #15231f; --ink-2: #3a4a45; --muted: #62716c;
  --line: #e2ddd0; --line-2: #ece8dd;
  --teal: #0e8077; --teal-700: #0b675f; --teal-900: #073f3a; --teal-50: #e8f4f2;
  --red: #a3402b;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(21,35,31,.05), 0 10px 30px rgba(21,35,31,.08);
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Lora", Georgia, serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-700); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.6rem, 3.4vw, 2.2rem); letter-spacing: -.01em; }
h3 { font-size: 1.08rem; }
p { margin: 0 0 1em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 700px) { .wrap { padding: 0 28px; } }
.narrow { max-width: 760px; }
.muted { color: var(--muted); }

.note { margin: 0; padding: 7px 16px; text-align: center; font-size: 14px; line-height: 1.45; color: var(--ink-2); background: var(--line-2); border-bottom: 1px solid var(--line); }

.bar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; background: rgba(246,244,238,.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line-2); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; line-height: 1.2; }
.brand svg { width: 36px; height: 36px; flex: none; }
.brand small { display: block; font-size: 13px; font-weight: 500; color: var(--muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 20px; border-radius: 999px; border: 0; font: 600 16px/1.2 var(--font); text-decoration: none; cursor: pointer; text-align: center; }
.btn-main { background: var(--teal); color: #fff; }
.btn-main:hover { background: var(--teal-700); }
.btn-soft { background: var(--teal-50); color: var(--teal-700); }
.bar .btn { min-height: 40px; padding: 0 16px; font-size: 15px; }

/* Hero + form */
.hero { position: relative; color: #fff; padding: 36px 0 40px; overflow: hidden; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(7,40,36,.82), rgba(7,40,36,.7) 55%, rgba(7,40,36,.88)); }
.credit { position: absolute; right: 10px; top: 8px; font-size: 12px; color: rgba(255,255,255,.75); background: rgba(0,0,0,.35); padding: 2px 8px; border-radius: 99px; }
.hero-grid { display: grid; gap: 26px; align-items: start; }
@media (min-width: 900px) { .hero { padding: 64px 0 72px; } .hero-grid { grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; } }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 13px; font-weight: 600; color: #bfe6e0; margin-bottom: .6em; }
.hero h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.9rem, 5vw, 3.1rem); letter-spacing: -.015em; }
.lead { font-size: 18px; color: rgba(255,255,255,.92); max-width: 36em; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.ticks li { padding-left: 28px; position: relative; color: rgba(255,255,255,.92); }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; margin-top: 3px; border-radius: 50%; background: rgba(255,255,255,.18); font-size: 12px; display: grid; place-items: center; }

.card { background: var(--surface); color: var(--ink); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px; }
.form-card { padding: 24px 20px; }
.form-title { font-family: var(--serif); font-size: 1.5rem; margin-bottom: 4px; }
.form-sub { color: var(--muted); margin-bottom: 14px; }
.field { display: block; border: 0; padding: 0; margin: 0 0 14px; }
.field > span, .field legend { display: block; font-weight: 600; font-size: 15px; margin-bottom: 6px; padding: 0; }
.field input { width: 100%; min-height: 50px; padding: 0 14px; border: 1.5px solid var(--line); border-radius: 12px; font: 17px var(--font); background: #fff; color: var(--ink); }
.field input:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-50); }
.err { display: none; color: var(--red); font-size: 14px; font-style: normal; margin-top: 4px; }
.field.bad .err { display: block; }
.field.bad input { border-color: var(--red); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label { position: relative; }
.chips input { position: absolute; opacity: 0; inset: 0; }
.chips span { display: inline-block; padding: 9px 14px; border: 1.5px solid var(--line); border-radius: 99px; font-size: 15px; cursor: pointer; user-select: none; }
.chips input:checked + span { border-color: var(--teal); background: var(--teal-50); color: var(--teal-700); font-weight: 600; }
.chips input:focus-visible + span { box-shadow: 0 0 0 3px var(--teal-50); }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-card .btn-main { width: 100%; min-height: 54px; font-size: 17px; }
.msg { margin: 10px 0 0; font-size: 15px; }
.msg.is-error { color: var(--red); }
.consent { font-size: 14px; color: var(--muted); margin: 12px 0 0; line-height: 1.5; }
.done { display: none; text-align: center; }
.form-card.is-done form { display: none; }
.form-card.is-done .done { display: block; }
.done-big { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; color: var(--teal-700); }

/* Số liệu */
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: -18px; position: relative; }
@media (min-width: 760px) { .facts { grid-template-columns: repeat(4, 1fr); } }
.facts div { background: var(--surface); border-radius: 14px; box-shadow: var(--shadow); padding: 14px 16px; }
.facts b { display: block; font-family: var(--serif); font-size: 1.35rem; color: var(--teal-700); }
.facts span { font-size: 14px; color: var(--muted); }

.sec { padding: 48px 0; }
.sec.wrap { padding-left: 16px; padding-right: 16px; }
@media (min-width: 700px) { .sec.wrap { padding-left: 28px; padding-right: 28px; } .sec { padding: 64px 0; } }
.sec-white { background: var(--surface); }
.two { display: grid; gap: 24px; }
@media (min-width: 860px) { .two { grid-template-columns: 1fr 1fr; align-items: start; gap: 40px; } }
figure { margin: 0; }
figure img { border-radius: 14px; }
figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }
figure.wide { margin-top: 20px; max-width: 800px; }

.cards { display: grid; gap: 12px; margin-top: 18px; }
@media (min-width: 640px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.cards .card { box-shadow: none; border: 1px solid var(--line-2); background: var(--paper); padding: 18px; }
.cards p { margin: 0; color: var(--ink-2); font-size: 16px; }
.cards .big { font-family: var(--serif); font-size: 1.4rem; font-weight: 600; color: var(--teal-700); margin: 0 0 4px; }

.steps { list-style: none; padding: 0; margin: 0 0 18px; border-left: 2px solid var(--teal-50); }
.steps li { position: relative; padding: 0 0 14px 20px; }
.steps li::before { content: ""; position: absolute; left: -7px; top: 8px; width: 12px; height: 12px; border-radius: 50%; background: var(--teal); }
.steps li.soft::before { background: #c9a35a; }
.steps b { display: block; }
.ask { padding-left: 1.2em; }
.ask li { margin-bottom: 10px; }

.about { display: grid; gap: 20px; align-items: center; }
.about img { width: 160px; height: 160px; object-fit: cover; border-radius: 50%; }
@media (min-width: 760px) { .about { grid-template-columns: 200px 1fr; gap: 36px; } .about img { width: 200px; height: 200px; } }
.links { font-size: 16px; }

details { border-bottom: 1px solid var(--line-2); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; list-style: none; padding-right: 28px; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: -2px; font-size: 22px; color: var(--teal); }
details[open] summary::after { content: "–"; }
details p { margin: 10px 0 0; color: var(--ink-2); }

.end-cta { text-align: center; }
.end-cta .row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

.foot { background: #0c1614; color: rgba(255,255,255,.75); font-size: 15px; padding: 36px 0 110px; }
.foot a { color: #bfe6e0; }
.foot b { color: #fff; }
.foot .legal { font-size: 14px; color: rgba(255,255,255,.55); border-top: 1px solid rgba(255,255,255,.12); padding-top: 14px; margin-top: 18px; }

.sticky { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: flex; gap: 8px; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); transform: translateY(110%); transition: transform .2s; }
.sticky.show { transform: none; }
.sticky .btn-main { flex: 1; }
@media (min-width: 900px) { .sticky { display: none; } .foot { padding-bottom: 40px; } }