:root {
  --navy: #2E1065;
  --navy-deep: #2E1065;
  --navy-soft: #2E1065;
  --gold: #2E1065;
  --gold-light: #F0C17A;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --text: #1a2035;
  --text-muted: #5c6478;
  --border: #e4e7f0;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(46, 16, 101, 0.12);
  --max-width: 1160px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

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

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { font-weight: 700; line-height: 1.2; margin: 0; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: #2E1065; }
.btn-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-ghost { color: var(--navy); background: transparent; }
.btn-ghost:hover { color: var(--gold); }
.btn-lg { padding: 13px 26px; font-size: 1rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { height: 34px; width: auto; }
.brand-text { font-weight: 800; font-size: 1.05rem; color: var(--navy); letter-spacing: -0.01em; }
.main-nav { display: flex; gap: 28px; }
.main-nav a { font-size: 0.92rem; font-weight: 500; color: #2E1065; }
.main-nav a:hover { color: #2563eb; }
.header-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.4rem; color: var(--navy); cursor: pointer; }

/* Hero */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: max(45.04vw, calc(80vh - 54.4px), 496px);
  min-height: max(45.04vw, calc(80svh - 54.4px), 496px);
  background-color: #fff;
  padding: 72px 0 56px;
}
.hero-background-slides {
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
}
.hero-background-image {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  opacity: 0;
  transform: scale(1);
  transition: opacity 1.1s ease, transform 6s ease;
}
.hero-background-image.is-active {
  opacity: 1;
  transform: scale(1.04);
}
.hero > .wrap { position: relative; z-index: 1; }
.hero-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero-copy {
  position: relative;
  isolation: isolate;
  overflow: visible;
  max-width: 560px;
  padding: 32px 34px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 22px;
  background: radial-gradient(ellipse at 50% 48%, rgba(255, 255, 255, .30) 0%, rgba(255, 255, 255, .23) 42%, rgba(248, 244, 255, .11) 72%, rgba(248, 244, 255, .025) 100%);
  box-shadow: 0 12px 36px rgba(29, 18, 58, .08);
  backdrop-filter: blur(3px) saturate(118%);
  -webkit-backdrop-filter: blur(3px) saturate(118%);
}
.hero-copy > * {
  position: relative;
  z-index: 1;
}
.hero-kicker { color: var(--gold); font-weight: 700; font-size: calc(.9rem + 1px); margin: 0 0 14px; -webkit-text-stroke: .5px #fff; paint-order: stroke fill; }
.hero h1 { font-size: calc(2.6rem + 1px); letter-spacing: -0.02em; color: var(--navy-deep); margin-bottom: 18px; -webkit-text-stroke: .5px #fff; paint-order: stroke fill; }
.hero-sub { color: var(--navy-deep); font-size: calc(1.05rem - .5px); font-weight: 600; max-width: 46ch; margin-bottom: 28px; -webkit-text-stroke: .1px #fff; paint-order: stroke fill; }
.hero-actions { display: flex; gap: 14px; margin-bottom: 22px; flex-wrap: wrap; }
.hero-domain { font-family: monospace; color: var(--navy-soft); font-size: 0.9rem; opacity: 0.75; }

/* Products */
.products {
  position: relative;
  overflow: hidden;
  padding: 84px 0;
  background:
    radial-gradient(ellipse at 12% 4%, rgba(46, 16, 101, .34), transparent 34%),
    radial-gradient(ellipse at 92% 100%, rgba(211, 162, 95, .15), transparent 32%),
    linear-gradient(125deg, #2E1065 0%, rgba(46, 16, 101, .88) 52%, #2E1065 100%);
}
.products .section-title { color: #fff; }
.products .section-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin: 18px auto 0;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(255, 255, 255, .86), #f0c17a);
}
.products .section-sub { color: rgba(246, 243, 255, .76); }
.section-title { font-size: 2rem; color: var(--navy-deep); letter-spacing: -0.01em; text-align: center; }
.section-sub { color: var(--text-muted); text-align: center; max-width: 56ch; margin: 12px auto 44px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  position: relative;
  border: 1px solid rgba(255, 255, 255, .68);
  border-radius: 16px;
  padding: 32px 28px;
  background: linear-gradient(145deg, #fff 0%, #f7f6fa 100%);
  box-shadow: 0 16px 38px rgba(12, 8, 28, .2);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.product-card:hover { border-color: #e6c07f; transform: translateY(-6px); box-shadow: 0 22px 48px rgba(12, 8, 28, .32); }
.product-icon {
  width: 46px; height: 46px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: #fff; margin-bottom: 18px;
}
.icon-dialer { background: linear-gradient(145deg, rgba(255, 255, 255, .22), #2E1065); }
.icon-call { background: linear-gradient(145deg, rgba(255, 255, 255, .16), #2E1065); }
.icon-contact { background: linear-gradient(145deg, rgba(255, 255, 255, .12), #2E1065); }
.product-card h3 { margin-bottom: 8px; color: var(--navy-deep); }
.product-card p { color: var(--text-muted); font-size: 0.94rem; margin: 0; }

/* Feature sections */
.feature { position: relative; isolation: isolate; overflow: hidden; padding: 64px 0; background-color: #f7f9ff; }
.feature::before { content: ""; position: absolute; z-index: 0; inset: 0; background-image: var(--feature-background); background-position: center; background-size: cover; opacity: .52; pointer-events: none; }
#smart-dialer { --feature-background: url("../assets/smart-dialer-background.svg?v=blue-tone-20261007"); }
#call-center { --feature-background: url("../assets/call-center-background.png"); background-color: #f4f7fc; }
#call-center::before { opacity: 1; }
#call-center .feature-copy { padding: 26px 28px; border-radius: 16px; background: rgba(255, 255, 255, .94); box-shadow: 0 12px 32px rgba(10, 28, 68, .16); }
#contact-center { --feature-background: url("../assets/contact-center-background.svg?v=blue-tone-20261007"); }
.alt-bg { background: var(--bg-soft); }
.feature-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.feature-reverse .feature-copy { order: 2; }
.feature-tag {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  padding: 5px 12px; border-radius: 20px; margin-bottom: 16px;
}
.tag-dialer { background: rgba(46, 16, 101, 0.14); color: var(--gold); }
.tag-call { background: rgba(46, 16, 101, 0.1); color: var(--navy); }
.tag-contact { background: rgba(46, 16, 101, 0.1); color: var(--navy-soft); }
.feature h2 { font-size: 1.7rem; color: var(--navy-deep); margin-bottom: 16px; max-width: 24ch; }
.feature p { color: var(--text-muted); margin-bottom: 20px; }
.feature-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.feature-list li { padding-left: 22px; position: relative; color: var(--text); font-size: 0.95rem; }
.feature-list li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--gold);
}

.mock-panel {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); max-width: 380px; margin: 0 auto;
}
.mock-panel-header { font-weight: 700; color: var(--navy-deep); font-size: 0.92rem; margin-bottom: 16px; }
.mock-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 0.9rem; color: var(--text-muted); }
.mock-row b { color: var(--text); }
.mock-row b.ok { color: #1a8f4c; }
.mock-row b.bad { color: #c23b3b; }
.mock-row b.tag-priority { color: var(--gold); }
.mock-bar { height: 8px; border-radius: 4px; background: var(--bg-soft); margin-top: 14px; overflow: hidden; }
.mock-bar span { display: block; height: 100%; background: var(--gold); }
.mock-agent { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 0.9rem; border-bottom: 1px dashed var(--border); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.dot.online { background: #1a8f4c; }
.dot.busy { background: var(--gold); }
.dot.offline { background: #b7bcc9; }

/* Stats */
.stats { background: var(--navy-deep); padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat b { display: block; font-size: 2.1rem; color: var(--gold-light); font-weight: 800; }
.stat span { color: rgba(255,255,255,0.7); font-size: 0.88rem; }

/* CTA */
#tin-tuc { padding-top: 46px; padding-bottom: 12px; }
.cta-banner { padding: 12px 0; background: var(--bg-soft); }
#lien-he + .site-footer { padding-top: 12px; }
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.cta-inner h2 { font-size: 1.6rem; color: var(--navy-deep); margin-bottom: 10px; max-width: 22ch; }
.cta-inner p { color: var(--text-muted); }
.cta-form { display: flex; flex-direction: column; gap: 12px; background: #fff; padding: 22px; border-radius: var(--radius); box-shadow: var(--shadow); }
.cta-form input {
  padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem; font-family: inherit;
}
.cta-form input:focus { outline: 2px solid var(--gold); border-color: var(--gold); }
.cta-form button { margin-top: 4px; }

/* Footer */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,0.85); padding: 56px 0 0; }
.footer-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr); gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-company .brand-logo { margin-bottom: 16px; }
.footer-company h2 { color: #fff; font-size: .98rem; line-height: 1.4; margin-bottom: 10px; }
.footer-company-details { display: grid; gap: 7px; font-size: .84rem; color: rgba(255,255,255,.72); }
.footer-company-details b { color: rgba(255,255,255,.95); }
.footer-company-details a { color: inherit; overflow-wrap: anywhere; }
.footer-company-details a:hover { color: var(--gold-light); }
.footer-col h4 { color: #fff; font-size: 0.9rem; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 0.88rem; color: rgba(255,255,255,0.65); margin-bottom: 10px; }
.footer-col a:hover { color: var(--gold-light); }
.footer-menu-column h3 { color: #fff; font-size: .98rem; margin: 0 0 16px; }
.footer-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.footer-nav a { display: inline-flex; margin: 0; white-space: nowrap; }
.footer-bottom { text-align: center; font-size: 0.8rem; color: rgba(255,255,255,0.5); padding: 20px 0; }

/* Responsive */
@media (max-width: 900px) {
  .hero-inner, .feature-inner, .cta-inner { grid-template-columns: 1fr; }
  .feature-reverse .feature-copy { order: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .main-nav { position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border); display: none; }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .header-cta { display: none; }
  .hero {
    min-height: 0;
    padding: 0 0 32px;
  }
  .hero-background-slides {
    position: relative;
    inset: auto;
    width: 100%;
    aspect-ratio: 1670 / 754.4;
  }
  .hero .hero-inner { padding-top: 25.6px; }
  .hero-copy { max-width: none; padding: 26px 24px; }
  .pricing-grid, .industries-grid, .blog-grid { grid-template-columns: 1fr !important; }
}

/* ===================== TOP BAR ===================== */
.top-bar { background: var(--navy-deep); color: rgba(255,255,255,0.85); font-size: 0.82rem; }
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; padding: 7px 24px; }
.top-bar b { color: var(--gold-light); }
.top-bar-links a { color: rgba(255,255,255,0.85); }
.top-bar-links a:hover { color: var(--gold-light); }
.site-header { top: 0; }

/* Member registration and login */
.member-auth-page { min-height: calc(100vh - 68px); padding: 64px 20px; display: flex; justify-content: center; align-items: flex-start; background: var(--bg-soft); }
.member-auth-card { width: 100%; max-width: 480px; padding: 34px; background: #fff; border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); }
.member-auth-card h1 { color: var(--navy-deep); text-align: center; font-size: 1.7rem; }
.member-auth-card .section-sub { margin-bottom: 26px; }
.member-auth-card form { display: flex; flex-direction: column; gap: 9px; }
.member-auth-card label { margin-top: 6px; font-size: .88rem; font-weight: 600; color: var(--text-muted); }
.member-auth-card input { padding: 11px 13px; border: 1px solid var(--border); border-radius: 8px; font: inherit; }
.member-auth-card input:focus { outline: 2px solid var(--gold); border-color: var(--gold); }
.member-auth-card small { color: var(--text-muted); }
.member-auth-card button[type="submit"] { width: 100%; margin-top: 8px; }
.member-auth-card button:disabled { opacity: .55; cursor: not-allowed; }
.member-captcha { min-height: 78px; margin-top: 12px; overflow-x: auto; }
.member-auth-message { min-height: 20px; margin: 4px 0; color: #b42318; font-size: .88rem; }
.member-auth-message.is-success { color: #1a8f4c; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.cta-form button:disabled { opacity: .6; cursor: not-allowed; }
.member-auth-switch { margin: 20px 0 0; text-align: center; color: var(--text-muted); }
.member-auth-switch a { color: var(--navy); font-weight: 700; text-decoration: underline; }
.member-account-details { display: grid; grid-template-columns: 120px 1fr; gap: 12px; margin: 28px 0; }
.member-account-details dt { color: var(--text-muted); font-weight: 600; }
.member-account-details dd { margin: 0; overflow-wrap: anywhere; }
@media (max-width: 520px) { .member-auth-card { padding: 26px 20px; } }

/* ===================== STAT BADGE ROW ===================== */
.stat-badge-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 44px;
}
.stat-badge {
  background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px;
  text-align: center; box-shadow: var(--shadow);
}
.stat-badge b { display: block; font-size: 1.5rem; font-weight: 800; color: var(--navy-deep); }
.stat-badge span { font-size: 0.78rem; color: var(--text-muted); }
@media (max-width: 700px) { .stat-badge-row { grid-template-columns: repeat(2, 1fr); } }

/* ===================== NGANH NGHE ===================== */
.industries { margin: 0 0 24px; padding: 24px 0; }
.industries + .pricing { padding-top: 24px; }
#contact-center { padding-bottom: 24px; }
.industries .section-title { margin-bottom: 20px; }
.industries-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.industry-chip {
  display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
  background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px 10px;
  font-size: 0.82rem; font-weight: 600; color: var(--text); transition: border-color .15s, transform .15s;
}
.industry-chip:hover { border-color: var(--gold); transform: translateY(-2px); }
.industry-icon { font-size: 1.6rem; }
@media (max-width: 900px) { .industries-grid { grid-template-columns: repeat(3, 1fr); } }

/* ===================== BANG GIA ===================== */
.pricing { padding: 76px 0; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.pricing-card {
  position: relative; background: #fff; border: 1.5px solid var(--border); border-radius: 14px;
  padding: 32px 26px; display: flex; flex-direction: column;
}
.pricing-card.highlighted { border-color: var(--gold); box-shadow: 0 16px 40px rgba(46,16,101,0.2); transform: translateY(-6px); }
.pricing-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: #fff; font-size: 0.72rem; font-weight: 700;
  padding: 4px 14px; border-radius: 20px;
}
.pricing-card h3 { color: var(--navy-deep); font-size: 1.1rem; letter-spacing: 0.02em; margin-bottom: 10px; }
.pricing-price { font-size: 1.6rem; font-weight: 800; color: var(--navy-deep); margin-bottom: 18px; }
.pricing-price span { font-size: 0.85rem; font-weight: 500; color: var(--text-muted); }
.pricing-features { list-style: none; margin: 0 0 24px; padding: 0; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.pricing-features li { font-size: 0.88rem; color: var(--text); }
.btn-block { width: 100%; }

/* ===================== DANH GIA ===================== */
#bang-gia { padding-bottom: 12px; }
.testimonials { padding: 12px 0; }
.testimonials + .certifications { padding-top: 12px; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.testimonial-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 26px; }
.testimonial-quote { font-size: 2.4rem; color: var(--gold); line-height: 1; font-weight: 800; margin-bottom: 6px; }
.testimonial-card p { color: var(--text); font-size: 0.94rem; margin-bottom: 18px; }
.testimonial-author b { display: block; color: var(--navy-deep); font-size: 0.92rem; }
.testimonial-author span { color: var(--text-muted); font-size: 0.82rem; }
@media (max-width: 900px) { .testimonial-grid { grid-template-columns: 1fr; } }

/* ===================== LOGO ROWS (chung nhan / bao chi / doi tac) ===================== */
.certifications, .press, .partners { padding: 52px 0; }
.section-title-sm { text-align: center; font-size: 1.15rem; color: var(--navy-deep); margin-bottom: 28px; }
.partners .section-title-sm { font-size: 2rem; line-height: 1.2; letter-spacing: -0.01em; }
.logo-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 32px; align-items: center; }
.logo-row img { height: 44px; object-fit: contain; }
.logo-row-muted img { filter: grayscale(100%); opacity: 0.65; transition: opacity .15s, filter .15s; }
.logo-row-muted img:hover { filter: none; opacity: 1; }
.cert-item { display: flex; flex-direction: column; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--text-muted); text-align: center; max-width: 140px; }
.partner-carousel { overflow: hidden; width: 100%; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.partner-track { display: flex; align-items: center; width: max-content; animation: partner-scroll 32s linear infinite; }
.partner-carousel:hover .partner-track { animation-play-state: paused; }
.partner-logo { width: 190px; height: 76px; margin: 0 16px; display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.partner-logo img { max-width: 160px; max-height: 54px; object-fit: contain; filter: none; opacity: 1; transition: opacity .18s ease, filter .18s ease; }
.partner-logo:hover img { filter: grayscale(100%); opacity: .58; }
@keyframes partner-scroll { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .partner-track { animation: none; } }
@media (prefers-reduced-motion: reduce) {
  .hero-background-image { transition: none; transform: none; }
}

/* ===================== BLOG ===================== */
.blog-section { padding: 76px 0; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-grid-full { margin-top: 36px; }
.blog-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; transition: transform .15s, border-color .15s; }
.blog-card:hover { transform: translateY(-3px); border-color: var(--gold); }
.blog-thumb {
  height: 160px; background: var(--navy-deep) center/cover no-repeat;
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-weight: 800; font-size: 1.4rem;
}
.blog-card-body { padding: 18px 20px; }
.blog-category { display: inline-block; font-size: 0.72rem; font-weight: 700; color: var(--gold); background: rgba(46,16,101,0.12); padding: 3px 10px; border-radius: 20px; margin-bottom: 10px; }
.blog-card-body h3 { font-size: 1.02rem; color: var(--navy-deep); margin: 0 0 8px; line-height: 1.35; }
.blog-card-body p { font-size: 0.86rem; color: var(--text-muted); margin: 0; }

.post-article { padding: 52px 0 80px; }
.post-content { color: var(--text); font-size: 1rem; line-height: 1.8; }
.post-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; }
.post-content table { display: block; overflow-x: auto; }

/* ===================== FOOTER: chi nhanh ===================== */
.footer-branches { display: flex; flex-direction: column; gap: 14px; }
.footer-branch { display: flex; flex-direction: column; gap: 2px; font-size: 0.82rem; color: rgba(255,255,255,0.65); }
.footer-branch b { color: #fff; font-size: 0.86rem; }

/* ===================== NUT LIEN HE NOI ===================== */
.floating-contacts {
  position: fixed; right: 20px; bottom: 24px; display: flex; flex-direction: column; gap: 12px; z-index: 90;
}
.float-btn {
  width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.82rem; color: #fff; box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  transition: transform .15s;
}
.float-btn:hover { transform: scale(1.08); }
.float-zalo { background: #0068ff; }
.float-messenger { background: linear-gradient(135deg,#00c6ff,#0068ff); }
.float-phone { background: var(--navy); color: #ffffff; animation: pulse-phone 1.8s infinite; }
@keyframes pulse-phone {
  0% { box-shadow: 0 0 0 0 rgba(46,16,101,0.5); }
  70% { box-shadow: 0 0 0 14px rgba(46,16,101,0); }
  100% { box-shadow: 0 0 0 0 rgba(46,16,101,0); }
}