@import url("../../vendor/roboto/roboto.css");
@import url("../../vendor/aos/aos.css");
@import url("../../vendor/be-vietnam-pro/be-vietnam-pro.css");
/* ==========================================================================
   GIA NGUYEN — DESIGN SYSTEM V5 (brand overlay)
   Nhận diện thương hiệu gốc dochoigianguyen.com: navy #021d64 + cam #ff7f27 + teal #31c9a8
   Font: Be Vietnam Pro (display + body) — chuyên nghiệp
   ========================================================================== */
:root {
  --v4-bg: #ffffff;
  --v4-surface: #ffffff;
  --v4-ink: #0b1a3f;
  --v4-ink-soft: #3d4b6e;
  --v4-forest: #021d64;
  --v4-forest-2: #123a8c;
  --v4-forest-3: #2b5bbf;
  --v4-mint: #eef4ff;
  --v4-mint-2: #f6f9ff;
  --v4-coral: #ff7f27;
  --v4-coral-2: #ff9a52;
  --v4-coral-dark: #e86f12;
  --v4-sun: #31c9a8;
  --v4-sky: #7fb7ff;
  --v4-muted: #64739a;
  --v4-border: #e4e9f5;
  --v4-radius: 22px;
  --v4-radius-sm: 12px;
  --v4-radius-pill: 999px;
  --v4-shadow: 0 12px 32px rgba(2, 29, 100, .08);
  --v4-shadow-lg: 0 22px 55px rgba(2, 29, 100, .14);
  --v4-transition: .25s cubic-bezier(.4, 0, .2, 1);
  --v4-font-display: "Be Vietnam Pro", Roboto, Arial, sans-serif;
  --v4-font-body: "Be Vietnam Pro", Roboto, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--v4-font-body);
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--v4-ink-soft);
  background: #f4f7fd;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img { max-width: 100%; }
a { color: var(--v4-forest); text-decoration: none; transition: color var(--v4-transition); }
a:hover { color: var(--v4-coral); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--v4-font-display);
  color: var(--v4-ink);
  line-height: 1.18;
  margin: 0 0 .5em;
  font-weight: 800;
  letter-spacing: -.01em;
}
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }
.ul-reset { list-style: none; margin: 0; padding: 0; }
.text-muted, .gn-muted { color: var(--v4-muted); }
.fw-bold { font-weight: 700; }
.m-0 { margin: 0; }
.mb-1 { margin-bottom: .25rem; }
.mb-2 { margin-bottom: .5rem; }
.mt-3 { margin-top: 1rem; }
.py-4 { padding-top: 1.5rem; padding-bottom: 1.5rem; }

/* ---------------------------------------------------------------------------
   UTILITIES / GRID
   --------------------------------------------------------------------------- */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.row { display: flex; flex-wrap: wrap; margin: 0 -12px; }
.row > * { padding: 0 12px; }
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }
.g-3 { gap: 1rem; }
@media (min-width: 768px) {
  .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .py-md-5 { padding-top: 3rem; padding-bottom: 3rem; }
}
@media (min-width: 992px) {
  .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
  .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
}

/* ---------------------------------------------------------------------------
   BUTTONS
   --------------------------------------------------------------------------- */
.gn-btn, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  padding: 14px 26px;
  border-radius: var(--v4-radius-pill);
  transition: transform var(--v4-transition), box-shadow var(--v4-transition), background var(--v4-transition), color var(--v4-transition);
  text-decoration: none;
}
.gn-btn:hover, .button:hover { transform: translateY(-2px); text-decoration: none; }
.gn-btn-primary, .gn-btn-orange, .button-purple {
  background: var(--v4-coral);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 92, 57, .32);
}
.gn-btn-primary:hover, .gn-btn-orange:hover, .button-purple:hover { background: var(--v4-coral-dark); color: #fff; }
.gn-btn-navy, .button-orange {
  background: var(--v4-forest);
  color: #fff;
  box-shadow: 0 10px 24px rgba(30, 70, 56, .26);
}
.gn-btn-navy:hover, .button-orange:hover { background: var(--v4-forest-2); color: #fff; }
.gn-btn-white, .gn-btn-outline, .button-white {
  background: #fff;
  color: var(--v4-forest);
  border: 2px solid var(--v4-border);
}
.gn-btn-white:hover, .gn-btn-outline:hover, .button-white:hover { border-color: var(--v4-coral); color: var(--v4-coral-dark); }
.gn-btn-block, .button--block { display: flex; width: 100%; }
.button--sm, .button-sm { padding: 9px 16px; font-size: 13px; }
.button-danger { background: #d64545; color: #fff; }
.button-danger:hover { background: #b83232; color: #fff; }
.gn-arrow { font-size: 17px; line-height: 1; }

/* ---------------------------------------------------------------------------
   HEADER
   --------------------------------------------------------------------------- */
.topbar {
  background: var(--v4-forest);
  color: rgba(255, 255, 255, .86);
  font-size: 13px;
  padding: 8px 0;
}
.topbar a { color: rgba(255, 255, 255, .92); }
.topbar a:hover { color: var(--v4-sun); }
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 18px; min-width: 0; }
.topbar-left a, .topbar-right > * { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.topbar svg { width: 14px; height: 14px; fill: currentColor; flex: 0 0 auto; }

.header-navbar {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--v4-border);
}
.navbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 76px; }
.logo-header { display: inline-flex; align-items: center; }
.logo-header .gn-logo-img, .logo-footer .gn-logo-img { height: 46px; width: auto; object-fit: contain; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-item > a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 10px 15px;
  border-radius: var(--v4-radius-pill);
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 14.5px;
  color: var(--v4-ink);
}
.nav-item > a:hover { background: var(--v4-mint); color: var(--v4-forest); }
.nav-item.active > a { background: var(--v4-forest); color: #fff; }
.nav-caret {
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid currentColor;
  border-radius: 2px;
}
.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 260px;
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 18px;
  box-shadow: var(--v4-shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--v4-transition);
  z-index: 950;
}
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a {
  display: block;
  padding: 9px 14px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--v4-ink-soft);
}
.nav-dropdown a:hover { background: var(--v4-mint-2); color: var(--v4-forest); }
.nav-search .search-button {
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--v4-ink);
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--v4-transition);
}
.nav-search .search-button:hover { background: var(--v4-mint); }
.search-button svg { width: 19px; height: 19px; fill: currentColor; }

.v3-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--v4-coral);
  color: #fff;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 14px;
  padding: 12px 22px;
  border-radius: var(--v4-radius-pill);
  box-shadow: 0 10px 22px rgba(255, 92, 57, .30);
  transition: transform var(--v4-transition), background var(--v4-transition);
  white-space: nowrap;
}
.v3-nav-cta:hover { background: var(--v4-coral-dark); color: #fff; transform: translateY(-2px); }
.v3-nav-cta svg { width: 16px; height: 16px; fill: currentColor; }
.v3-nav-cta--icon { padding: 12px 14px; }

/* Search overlay */
.search {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 42, 38, .72);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: all .3s ease;
  padding: 20px;
}
.search.active { opacity: 1; visibility: visible; }
.search form {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 640px;
  background: #fff;
  padding: 10px;
  border-radius: var(--v4-radius-pill);
  box-shadow: var(--v4-shadow-lg);
}
.search form input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 16px;
  color: var(--v4-ink);
  padding: 8px 14px;
}
.search .search-close {
  position: absolute;
  top: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 0;
  background: #fff;
  color: var(--v4-ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.search .search-close svg { width: 20px; height: 20px; fill: currentColor; }

/* Mobile bar */
.header-navbar-reponsive { display: none; }
.screen-opacity {
  position: fixed;
  inset: 0;
  z-index: 980;
  background: rgba(20, 42, 38, .55);
  opacity: 0;
  visibility: hidden;
  transition: all .3s ease;
}
.screen-opacity.active { opacity: 1; visibility: visible; }
.hamburger { background: none; border: 0; cursor: pointer; display: inline-flex; flex-direction: column; gap: 5px; padding: 10px; }
.hamburger .bar { width: 24px; height: 3px; border-radius: 3px; background: var(--v4-ink); transition: all .3s ease; }
.hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.active .bar:nth-child(2) { opacity: 0; }
.hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
.header-small {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 88vw);
  z-index: 990;
  background: #fff;
  transform: translateX(105%);
  transition: transform .32s cubic-bezier(.4, 0, .2, 1);
  overflow-y: auto;
  box-shadow: -20px 0 60px rgba(20, 42, 38, .18);
  padding: 22px;
}
.header-small.active { transform: translateX(0); }
.header-small-item > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 12px;
  border-radius: 14px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 15.5px;
  color: var(--v4-ink);
}
.header-small-item.active > a { background: var(--v4-mint); color: var(--v4-forest); }
.header-small-item > a:hover { background: var(--v4-mint-2); }
.dropdown-btn { cursor: pointer; }
.menu-child { display: none; padding-left: 14px; }
.menu-child.open { display: block; }
.menu-child ul li a { display: block; padding: 9px 12px; border-radius: 10px; font-size: 14px; color: var(--v4-ink-soft); }
.menu-child ul li a:hover { background: var(--v4-mint-2); color: var(--v4-forest); }

/* ---------------------------------------------------------------------------
   HERO V4
   --------------------------------------------------------------------------- */
.v4-hero {
  position: relative;
  padding: 72px 0 96px;
  overflow: hidden;
  background:
    radial-gradient(620px 420px at 88% 8%, rgba(255, 197, 61, .26), transparent 62%),
    radial-gradient(560px 420px at 4% 96%, rgba(127, 200, 240, .24), transparent 60%),
    var(--v4-bg);
}
.v4-blob { position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.v4-blob-1 { width: 260px; height: 260px; background: rgba(255, 92, 57, .10); top: -70px; left: -60px; }
.v4-blob-2 { width: 190px; height: 190px; background: rgba(46, 107, 84, .12); bottom: 30px; right: -50px; }
.v4-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.v4-hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--v4-mint);
  color: var(--v4-forest);
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 13.5px;
  padding: 8px 18px;
  border-radius: var(--v4-radius-pill);
  margin-bottom: 20px;
}
.v4-hero-chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--v4-coral); display: inline-block; }
.v4-hero-title {
  font-size: clamp(38px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.06;
  margin-bottom: 20px;
}
.v4-hero-title .v4-accent { color: var(--v4-coral); position: relative; }
.v4-hero-title .v4-accent::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 2px;
  height: 12px;
  background: rgba(255, 197, 61, .55);
  border-radius: 6px;
  z-index: -1;
}
.v4-hero-sub { font-size: 17px; color: var(--v4-muted); max-width: 520px; margin-bottom: 30px; }
.v4-hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.v4-hero-trust { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; }
.v4-hero-trust div { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--v4-muted); }
.v4-hero-trust svg { width: 18px; height: 18px; fill: var(--v4-forest-2); }

.v4-hero-media { position: relative; }
.v4-hero-img-main {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3.4;
  object-fit: cover;
  border-radius: 34px;
  box-shadow: var(--v4-shadow-lg);
}
.v4-hero-img-sub {
  position: absolute;
  width: 46%;
  aspect-ratio: 4 / 3.2;
  object-fit: cover;
  border-radius: 24px;
  border: 6px solid #fff;
  box-shadow: var(--v4-shadow-lg);
  right: -8%;
  bottom: -14%;
}
.v4-hero-float {
  position: absolute;
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--v4-shadow);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--v4-ink);
  animation: v4Float 5s ease-in-out infinite;
}
.v4-hero-float b { font-size: 19px; color: var(--v4-coral); }
.v4-float-1 { top: 5%; left: -6%; }
.v4-float-2 { bottom: 4%; left: -12%; animation-delay: 1.4s; }
@keyframes v4Float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ---------------------------------------------------------------------------
   MARQUEE
   --------------------------------------------------------------------------- */
.v4-marquee-wrap { overflow: clip; }
.v4-marquee {
  background: var(--v4-forest);
  color: rgba(255, 255, 255, .92);
  overflow: hidden;
  padding: 15px 0;
  transform: rotate(-1.2deg) scale(1.02);
  margin: -14px 0 0;
  box-shadow: 0 16px 40px rgba(30, 70, 56, .28);
}
.v4-marquee-track {
  display: flex;
  width: max-content;
  animation: v4Marquee 34s linear infinite;
}
.v4-marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  padding-right: 26px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 16px;
  white-space: nowrap;
  color: rgba(255, 255, 255, .94);
}
.v4-marquee-track span i { width: 9px; height: 9px; border-radius: 50%; background: var(--v4-sun); flex: 0 0 auto; }
.v4-marquee-track em { font-style: normal; color: var(--v4-sun); }
@keyframes v4Marquee { to { transform: translateX(-50%); } }

/* ---------------------------------------------------------------------------
   SECTION CHUNG
   --------------------------------------------------------------------------- */
.gn-section { padding: 84px 0; }
.v4-sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 40px; }
.v4-sec-head > div { max-width: 640px; }
.v4-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--v4-coral);
  margin-bottom: 12px;
}
.v4-label::before { content: ""; width: 22px; height: 4px; border-radius: 4px; background: var(--v4-coral); }
.v4-sec-head h2 { font-size: clamp(27px, 3.4vw, 40px); margin-bottom: 10px; }
.v4-sec-head p { color: var(--v4-muted); margin: 0; }

/* STATS */
.v4-stats {
  padding: 26px 0 8px;
}
.v4-stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  background: var(--v4-surface);
  border: 1px solid var(--v4-border);
  border-radius: 30px;
  box-shadow: var(--v4-shadow);
  padding: 34px 28px;
}
.v4-stat { text-align: center; }
.v4-stat b {
  display: block;
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: clamp(32px, 3.4vw, 46px);
  color: var(--v4-forest);
  line-height: 1;
  margin-bottom: 8px;
}
.v4-stat b span { color: var(--v4-coral); }
.v4-stat small { color: var(--v4-muted); font-size: 13.5px; }

/* SERVICES */
.v4-services { background: linear-gradient(180deg, var(--v4-bg) 0%, var(--v4-mint-2) 100%); }
.v4-service {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 44px;
  align-items: center;
  padding: 30px 0;
}
.v4-service + .v4-service { border-top: 1px dashed var(--v4-border); }
.v4-service:nth-child(even) .v4-service-media { order: 2; }
.v4-service-media { position: relative; }
.v4-service-media img {
  width: 100%;
  aspect-ratio: 16 / 10.5;
  object-fit: cover;
  border-radius: 26px;
  box-shadow: var(--v4-shadow);
}
.v4-service-media::after {
  content: attr(data-index);
  position: absolute;
  top: -18px;
  left: -12px;
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 64px;
  line-height: 1;
  color: var(--v4-sun);
  -webkit-text-stroke: 1px rgba(30, 70, 56, .25);
  z-index: 2;
}
.v4-service-body h3 { font-size: clamp(22px, 2.4vw, 29px); margin-bottom: 12px; }
.v4-service-body p { color: var(--v4-muted); }
.v4-service-tags { display: flex; flex-wrap: wrap; gap: 9px; margin: 18px 0 22px; }
.v4-service-tags span {
  background: #fff;
  border: 1px solid var(--v4-border);
  color: var(--v4-forest-2);
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 15px;
  border-radius: var(--v4-radius-pill);
}
.v4-link-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 14.5px;
  color: var(--v4-coral);
}
.v4-link-more svg { width: 17px; height: 17px; fill: currentColor; transition: transform var(--v4-transition); }
.v4-link-more:hover svg { transform: translateX(4px); }

/* WHY */
.v4-why {
  background: var(--v4-forest);
  border-radius: 44px;
  margin: 0 20px;
  padding: 72px 56px;
  color: rgba(255, 255, 255, .86);
  overflow: hidden;
  position: relative;
}
.v4-why::before {
  content: "";
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 197, 61, .20), transparent 70%);
  top: -140px;
  right: -100px;
}
.v4-why-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; position: relative; }
.v4-why .v4-label { color: var(--v4-sun); }
.v4-why .v4-label::before { background: var(--v4-sun); }
.v4-why h2 { color: #fff; font-size: clamp(27px, 3.2vw, 38px); margin-bottom: 16px; }
.v4-why h2 span { color: var(--v4-sun); }
.v4-why-left p { color: rgba(255, 255, 255, .75); }
.v4-why .gn-btn-navy { background: #fff; color: var(--v4-forest); }
.v4-why .gn-btn-navy:hover { background: var(--v4-sun); }
.v4-why-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 24px 0;
}
.v4-why-item + .v4-why-item { border-top: 1px solid rgba(255, 255, 255, .14); }
.v4-why-num {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--v4-sun);
}
.v4-why-item h3 { color: #fff; font-size: 19px; margin-bottom: 6px; }
.v4-why-item p { color: rgba(255, 255, 255, .72); margin: 0; font-size: 14.5px; }

/* PLAY (sản phẩm) */
.v4-play {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.v4-play-card {
  background: var(--v4-surface);
  border: 1px solid var(--v4-border);
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--v4-shadow);
  transition: transform var(--v4-transition), box-shadow var(--v4-transition);
  display: flex;
  flex-direction: column;
}
.v4-play-card:hover { transform: translateY(-6px); box-shadow: var(--v4-shadow-lg); }
.v4-play-card.wide { grid-column: span 2; }
.v4-play-card.tall { grid-row: span 2; }
.v4-play-media { display: block; position: relative; overflow: hidden; }
.v4-play-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .5s ease; display: block; }
.v4-play-card.wide .v4-play-media img { aspect-ratio: 16 / 7.4; }
.v4-play-card:hover .v4-play-media img { transform: scale(1.05); }
.v4-play-count {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(255, 255, 255, .92);
  color: var(--v4-forest);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 13px;
  border-radius: var(--v4-radius-pill);
  backdrop-filter: blur(4px);
}
.v4-play-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px 20px;
}
.v4-play-body h3 { font-size: 16.5px; margin: 0; line-height: 1.3; }
.v4-play-body a {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--v4-mint);
  color: var(--v4-forest);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--v4-transition), color var(--v4-transition);
}
.v4-play-body a:hover { background: var(--v4-coral); color: #fff; }
.v4-play-body svg { width: 16px; height: 16px; fill: currentColor; }
.v4-loading {
  grid-column: 1 / -1;
  color: var(--v4-muted);
  text-align: center;
  padding: 48px 0;
}

/* STEPS */
.v4-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}
.v4-steps::before {
  content: "";
  position: absolute;
  top: 46px;
  left: 8%;
  right: 8%;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--v4-border) 0 12px, transparent 12px 22px);
}
.v4-step { position: relative; text-align: center; padding: 0 8px; }
.v4-step-dot {
  width: 92px;
  height: 92px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--v4-surface);
  border: 2px dashed var(--v4-forest-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--v4-coral);
  position: relative;
  z-index: 1;
}
.v4-step h3 { font-size: 17px; margin-bottom: 6px; }
.v4-step p { color: var(--v4-muted); font-size: 13.5px; margin: 0; }

/* RAIL dự án */
.v4-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.v4-rail-card {
  background: var(--v4-surface);
  border: 1px solid var(--v4-border);
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--v4-shadow);
  transition: transform var(--v4-transition), box-shadow var(--v4-transition);
}
.v4-rail-card:hover { transform: translateY(-6px); box-shadow: var(--v4-shadow-lg); }
.v4-rail-card > a { display: block; overflow: hidden; }
.v4-rail-card > a img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; transition: transform .5s ease; }
.v4-rail-card:hover > a img { transform: scale(1.06); }
.v4-rail-body { padding: 20px 22px 24px; }
.v4-rail-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--v4-coral);
  margin-bottom: 8px;
}
.v4-rail-body h3 { font-size: 18px; margin-bottom: 6px; }
.v4-rail-body h3 a { color: var(--v4-ink); }
.v4-rail-body h3 a:hover { color: var(--v4-coral); }
.v4-rail-body p { color: var(--v4-muted); font-size: 13.5px; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* NEWS */
.v4-news-list { display: flex; flex-direction: column; }
.v4-news-row {
  display: grid;
  grid-template-columns: 190px 1fr auto;
  gap: 26px;
  align-items: center;
  padding: 22px 0;
}
.v4-news-row + .v4-news-row { border-top: 1px solid var(--v4-border); }
.v4-news-row img {
  width: 190px;
  height: 118px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: var(--v4-shadow);
}
.v4-news-row time {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--v4-coral);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.v4-news-row h3 { font-size: 19px; margin: 6px 0 8px; }
.v4-news-row h3 a { color: var(--v4-ink); }
.v4-news-row h3 a:hover { color: var(--v4-coral); }
.v4-news-row p { color: var(--v4-muted); font-size: 14px; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* PARTNERS */
.v4-partners { padding: 36px 0 56px; }
.v4-partners-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 8px 4px;
}
.v4-partners-track::-webkit-scrollbar { display: none; }
.v4-partners-track img {
  height: 64px;
  width: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: .62;
  transition: filter var(--v4-transition), opacity var(--v4-transition);
  flex: 0 0 auto;
}
.v4-partners-track img:hover { filter: grayscale(0); opacity: 1; }

/* CTA + BÁO GIÁ */
.v4-cta {
  padding: 30px 20px 96px;
}
.v4-cta-band {
  background:
    radial-gradient(420px 300px at 92% 8%, rgba(255, 197, 61, .35), transparent 60%),
    linear-gradient(135deg, #ff6a45 0%, var(--v4-coral) 48%, #f04e2c 100%);
  border-radius: 44px;
  padding: 64px 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(255, 92, 57, .30);
}
.v4-cta-band::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 34px solid rgba(255, 255, 255, .12);
  bottom: -120px;
  right: -70px;
}
.v4-cta-left { position: relative; z-index: 1; }
.v4-cta-left .v4-label { color: var(--v4-sun); }
.v4-cta-left .v4-label::before { background: var(--v4-sun); }
.v4-cta-left h2 { color: #fff; font-size: clamp(27px, 3.2vw, 38px); margin-bottom: 14px; }
.v4-cta-left h2 span { color: var(--v4-sun); }
.v4-cta-left p { color: rgba(255, 255, 255, .88); }
.v4-contact-list { display: flex; flex-direction: column; gap: 14px; margin-top: 22px; }
.v4-contact-item { display: flex; align-items: center; gap: 13px; }
.v4-ci-ico {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border-radius: 14px;
  background: rgba(255, 255, 255, .16);
  display: flex;
  align-items: center;
  justify-content: center;
}
.v4-ci-ico svg { width: 20px; height: 20px; fill: #fff; }
.v4-contact-item b { display: block; font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; opacity: .8; }
.v4-contact-item a, .v4-contact-item span { color: #fff; font-family: var(--v4-font-display); font-weight: 700; font-size: 15.5px; }
.v4-contact-item a:hover { color: var(--v4-sun); }
.v4-quote-card {
  position: relative;
  z-index: 1;
  background: #fff;
  border-radius: 30px;
  padding: 36px;
  box-shadow: 0 26px 60px rgba(140, 34, 12, .28);
  color: var(--v4-ink-soft);
}
.v4-quote-card h3 { font-size: 24px; margin-bottom: 6px; }
.v4-quote-card > p { font-size: 14px; color: var(--v4-muted); margin-bottom: 20px; }
.gn-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.gn-form-field { display: flex; flex-direction: column; gap: 6px; }
.gn-form-full { grid-column: 1 / -1; }
.gn-form-field label { font-size: 13px; font-weight: 700; color: var(--v4-ink); }
.gn-form-field input, .gn-form-field select {
  border: 2px solid var(--v4-border);
  background: var(--v4-mint-2);
  border-radius: 14px;
  padding: 12px 15px;
  font-size: 14px;
  color: var(--v4-ink);
  outline: none;
  transition: border-color var(--v4-transition), background var(--v4-transition);
  width: 100%;
}
.gn-form-field input:focus, .gn-form-field select:focus { border-color: var(--v4-coral); background: #fff; }
.gn-thumb-preview { display: none; margin-top: 8px; }
.gn-thumb-preview img { max-width: 140px; border-radius: 12px; border: 1px solid var(--v4-border); }

/* ---------------------------------------------------------------------------
   FOOTER
   --------------------------------------------------------------------------- */
.footer { background: var(--v4-ink); color: rgba(255, 255, 255, .74); margin-top: 0; }
.footer a { color: rgba(255, 255, 255, .78); }
.footer a:hover { color: var(--v4-sun); }
.footer .gn-logo-img { filter: brightness(0) invert(1); }
.footer-col { margin-bottom: 28px; }
.footer-heading {
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 16px;
  color: #fff;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(255, 255, 255, .12);
}
.footer-heading::after {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  border-radius: 3px;
  background: var(--v4-coral);
  margin-top: 8px;
}
.footer ul li { margin-bottom: 9px; font-size: 14px; }
.footer ul li a { display: inline-flex; align-items: center; gap: 7px; }
.contact-list li { display: flex; gap: 9px; align-items: flex-start; font-size: 13.5px; }
.contact-list svg { width: 15px; height: 15px; fill: var(--v4-coral); flex: 0 0 auto; margin-top: 3px; }
.social { margin-top: 22px; }
.social p { font-family: var(--v4-font-display); font-weight: 700; font-size: 14px; color: #fff; margin-bottom: 10px; }
.social ul { display: flex; gap: 9px; }
.social ul li a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .10);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: background var(--v4-transition), transform var(--v4-transition);
}
.social ul li a:hover { background: var(--v4-coral); transform: translateY(-3px); }
.social ul li img { width: 17px; height: 17px; object-fit: contain; filter: brightness(0) invert(1); }
.copyright {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 18px 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .55);
}
.copyright span { color: var(--v4-sun); }
.contact-fixed {
  position: fixed;
  right: 18px;
  bottom: 22px;
  z-index: 850;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.contact-fixed a {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--v4-shadow-lg);
  transition: transform var(--v4-transition);
  background: var(--v4-coral);
}
.contact-fixed a:hover { transform: scale(1.08); }
.contact-fixed a svg { width: 20px; height: 20px; fill: #fff; }
.contact-fixed a img { width: 22px; height: 22px; object-fit: contain; filter: brightness(0) invert(1); }

/* ---------------------------------------------------------------------------
   PAGE CHUNG (breadcrumb, title, sidebar, filter, pagination)
   --------------------------------------------------------------------------- */
.gn-container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.gn-breadcrumb, .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 14px 0 0;
  font-size: 13.5px;
  color: var(--v4-muted);
}
.breadcrumb { padding: 18px 0 0; }
.breadcrumb-item + .breadcrumb-item::before { content: "/"; margin-right: 8px; color: var(--v4-border); }
.gn-page-title, .section-title {
  font-size: clamp(26px, 3vw, 36px);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 14px;
}
.gn-page-title::after, .section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64px;
  height: 5px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--v4-coral), var(--v4-sun));
}
.gn-quick-nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 26px; }
.gn-quick-nav a, .gn-jump a {
  background: #fff;
  border: 1px solid var(--v4-border);
  color: var(--v4-forest);
  font-size: 13px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--v4-radius-pill);
  transition: all var(--v4-transition);
}
.gn-quick-nav a:hover, .gn-jump a:hover { background: var(--v4-forest); color: #fff; border-color: var(--v4-forest); }
.gn-jump { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.group-sidebar {
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 22px;
  padding: 22px;
  margin-bottom: 24px;
  box-shadow: var(--v4-shadow);
}
.group-sidebar .title {
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--v4-ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--v4-mint);
}
.group-sidebar-content a {
  display: block;
  padding: 9px 12px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--v4-ink-soft);
  margin-bottom: 3px;
}
.group-sidebar-content a:hover, .group-sidebar-content a.active { background: var(--v4-mint); color: var(--v4-forest); }
.gn-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 20px;
  padding: 16px 20px;
  margin-bottom: 22px;
  box-shadow: var(--v4-shadow);
}
.gn-filter-group { display: flex; flex-direction: column; gap: 5px; }
.gn-filter-group label { font-size: 12px; font-weight: 700; color: var(--v4-muted); }
.form-control, .form-select {
  border: 2px solid var(--v4-border);
  background: var(--v4-mint-2);
  border-radius: 13px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--v4-ink);
  outline: none;
  transition: border-color var(--v4-transition), background var(--v4-transition);
}
.form-control:focus, .form-select:focus { border-color: var(--v4-coral); background: #fff; }
.form-label { font-size: 13px; font-weight: 700; color: var(--v4-ink); margin-bottom: 6px; display: block; }
.form-group { margin-bottom: 16px; }
.form-error { color: #d64545; font-size: 13.5px; }
.gn-form-success { color: var(--v4-forest-2); font-weight: 600; font-size: 14px; }
.gn-required { color: var(--v4-coral); }
.gn-result-count { color: var(--v4-muted); font-size: 14px; margin-bottom: 18px; }
.gn-chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.gn-chip-row button, .gn-chip-row a {
  background: #fff;
  border: 1.5px solid var(--v4-border);
  border-radius: var(--v4-radius-pill);
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--v4-ink-soft);
  cursor: pointer;
  transition: all var(--v4-transition);
  font-family: inherit;
}
.gn-chip-row button:hover, .gn-chip-row button.active, .gn-chip-row a.active { background: var(--v4-forest); border-color: var(--v4-forest); color: #fff; }
.pagination { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 26px 0 0; }
.pagination li a, .pagination li span {
  display: inline-flex;
  min-width: 42px;
  height: 42px;
  padding: 0 12px;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  border: 1px solid var(--v4-border);
  background: #fff;
  font-size: 14px;
  font-weight: 600;
  color: var(--v4-ink-soft);
}
.pagination li a:hover { border-color: var(--v4-coral); color: var(--v4-coral-dark); }
.pagination li.active span { background: var(--v4-forest); color: #fff; border-color: var(--v4-forest); }
.pagination-bar { display: flex; align-items: center; gap: 14px; margin-top: 18px; }

/* Card chung (dự án / bài viết / tìm kiếm) */
.gn-card {
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--v4-shadow);
  transition: transform var(--v4-transition), box-shadow var(--v4-transition);
  margin-bottom: 22px;
}
.gn-card:hover { transform: translateY(-5px); box-shadow: var(--v4-shadow-lg); }
.gn-card > a img, .card-img img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.gn-card-body, .card-body { padding: 20px 22px 24px; }
.gn-card-body h3, .card-body h3 { font-size: 17px; margin-bottom: 6px; }
.gn-card-body h3 a { color: var(--v4-ink); }
.gn-card-body p { color: var(--v4-muted); font-size: 13.5px; margin: 0; }
.card { background: #fff; border: 1px solid var(--v4-border); border-radius: 20px; box-shadow: var(--v4-shadow); }
.card-head { font-family: var(--v4-font-display); font-weight: 800; font-size: 16px; color: var(--v4-ink); padding: 16px 20px; border-bottom: 1px solid var(--v4-border); }
.card-foot { padding: 14px 20px; border-top: 1px solid var(--v4-border); }

.product-all-item, .project-card, .article-item {
  display: block;
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--v4-shadow);
  transition: transform var(--v4-transition), box-shadow var(--v4-transition);
  margin-bottom: 24px;
  color: var(--v4-ink);
}
.product-all-item:hover, .project-card:hover, .article-item:hover { transform: translateY(-5px); box-shadow: var(--v4-shadow-lg); color: var(--v4-ink); }
.product-all-item img, .project-card img, .article-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.product-all-item .card-body, .project-card .card-body, .article-item .card-body { padding: 18px 20px; }
.product-all-item .card-body h3, .project-card .card-body h3, .article-item .card-body h3 { font-size: 16px; margin-bottom: 5px; }
.project-meta, .article-date, .article-descript, .article-title { color: var(--v4-muted); font-size: 13px; }
.project-name { font-family: var(--v4-font-display); font-weight: 800; }
.project-overlay { position: relative; }
.project-overlay::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(20, 42, 38, .55)); }
.tag-article {
  display: inline-block;
  background: var(--v4-mint);
  color: var(--v4-forest);
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--v4-radius-pill);
  padding: 5px 13px;
  margin: 0 6px 8px 0;
}
.article-body { padding: 18px 20px; }

/* Empty state */
.gn-empty {
  background: #fff;
  border: 1.5px dashed var(--v4-border);
  border-radius: 22px;
  text-align: center;
  padding: 48px 20px;
  color: var(--v4-muted);
}
.gn-empty-sm { padding: 24px 16px; }
.gn-empty-icon { font-size: 34px; display: block; margin-bottom: 10px; }
.gn-empty-text { margin: 0; }

/* ---------------------------------------------------------------------------
   ARTICLE / DỊCH VỤ / CHÍNH SÁCH
   --------------------------------------------------------------------------- */
.gn-article {
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 26px;
  box-shadow: var(--v4-shadow);
  padding: 34px 38px;
  font-size: 15px;
  color: var(--v4-ink-soft);
}
.gn-article h2 { font-size: 24px; margin: 28px 0 12px; color: var(--v4-forest); }
.gn-article h3 { font-size: 19px; margin: 22px 0 10px; }
.gn-article h4 { font-size: 16.5px; }
.gn-article ul li, .gn-article ol li { margin-bottom: 7px; }
.gn-article li strong { color: var(--v4-ink); }
.gn-profile-box {
  background: var(--v4-mint-2);
  border-left: 5px solid var(--v4-coral);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 14px 0;
}
.gn-profile-box ul { list-style: none; margin: 0; padding: 0; }
.gn-profile-box li { margin-bottom: 6px; font-size: 14px; }
.gn-figure { margin: 22px 0; }
.gn-figure img { width: 100%; border-radius: 20px; box-shadow: var(--v4-shadow); }
.gn-figcaption { text-align: center; font-size: 13px; color: var(--v4-muted); margin-top: 10px; }
.gn-service { background: #fff; border: 1px solid var(--v4-border); border-radius: 28px; box-shadow: var(--v4-shadow); padding: 34px 38px; margin-bottom: 30px; }
.gn-service-title { font-size: 25px; color: var(--v4-forest); margin-bottom: 10px; }
.gn-service-summary {
  background: var(--v4-mint);
  border-radius: 16px;
  padding: 16px 20px;
  color: var(--v4-forest);
  font-weight: 600;
  margin-bottom: 18px;
}
.gn-policy { margin-top: 10px; }
.gn-policy-date { color: var(--v4-muted); font-size: 13px; margin-bottom: 16px; }
.gn-tab-panel { display: none; }
.gn-tab-panel.active { display: block; animation: v4Fade .35s ease; }
.gn-tab-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.gn-tab-nav button {
  background: #fff;
  border: 1.5px solid var(--v4-border);
  border-radius: var(--v4-radius-pill);
  padding: 10px 20px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--v4-ink-soft);
  cursor: pointer;
  transition: all var(--v4-transition);
}
.gn-tab-nav button.active { background: var(--v4-forest); color: #fff; border-color: var(--v4-forest); }
@keyframes v4Fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.gn-link { color: var(--v4-coral); font-weight: 600; }
.gn-back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--v4-forest); font-weight: 600; margin-top: 18px; }

/* ---------------------------------------------------------------------------
   CHI TIẾT SẢN PHẨM / DỰ ÁN / BÀI VIẾT
   --------------------------------------------------------------------------- */
.gn-detail-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; }
.gn-gallery-main {
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--v4-shadow);
  margin-bottom: 14px;
}
.gn-gallery-main img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.gn-gallery-thumbs { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; }
.gn-gallery-thumbs img {
  width: 86px;
  height: 64px;
  object-fit: cover;
  border-radius: 12px;
  cursor: pointer;
  opacity: .65;
  border: 2px solid transparent;
  transition: all var(--v4-transition);
}
.gn-gallery-thumbs img.active { opacity: 1; border-color: var(--v4-coral); }
.gn-detail-info { background: #fff; border: 1px solid var(--v4-border); border-radius: 26px; box-shadow: var(--v4-shadow); padding: 30px; }
.gn-detail-title { font-size: clamp(23px, 2.6vw, 30px); margin-bottom: 12px; }
.gn-detail-shortdesc { color: var(--v4-muted); font-size: 14.5px; }
.gn-info-list { list-style: none; margin: 20px 0 0; padding: 0; border-top: 1px solid var(--v4-border); }
.gn-info-row { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--v4-border); font-size: 14px; }
.gn-info-row b { flex: 0 0 120px; color: var(--v4-ink); }
.gn-feature-list { list-style: none; margin: 18px 0 0; padding: 0; }
.gn-feature-list li {
  position: relative;
  padding: 9px 0 9px 30px;
  font-size: 14px;
  color: var(--v4-ink-soft);
}
.gn-feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--v4-mint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%232e6b54' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6L20.1 8.4 18.7 7z'/%3E%3C/svg%3E") center/14px no-repeat;
}
.gn-specs { width: 100%; border-collapse: collapse; margin-top: 16px; }
.gn-specs td { border: 1px solid var(--v4-border); padding: 10px 14px; font-size: 14px; }
.gn-specs td:first-child { background: var(--v4-mint-2); font-weight: 700; color: var(--v4-ink); width: 180px; }
.gn-heading { font-size: 21px; margin: 30px 0 10px; color: var(--v4-forest); }
.gn-paragraph { color: var(--v4-ink-soft); }
.gn-post-image { width: 100%; border-radius: 24px; box-shadow: var(--v4-shadow); margin-bottom: 18px; }
.gn-post-meta { display: flex; gap: 14px; color: var(--v4-muted); font-size: 13px; margin-bottom: 14px; }
.gn-meta-item { display: inline-flex; align-items: center; gap: 5px; }
.gn-quote-box {
  background: var(--v4-mint);
  border: 1px solid var(--v4-border);
  border-radius: 24px;
  padding: 28px;
  margin-top: 28px;
}
.gn-quote-box h2 { font-size: 21px; }
.gn-quote-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--v4-coral);
  color: #fff;
  font-family: var(--v4-font-display);
  font-weight: 700;
  padding: 13px 24px;
  border-radius: var(--v4-radius-pill);
}
.gn-quote-btn:hover { background: var(--v4-coral-dark); color: #fff; }

/* ---------------------------------------------------------------------------
   TÌM KIẾM
   --------------------------------------------------------------------------- */
.gn-search-count { font-size: 14px; color: var(--v4-muted); margin-bottom: 20px; }
.gn-search-query { color: var(--v4-coral); font-weight: 700; }
.gn-search-items { display: flex; flex-direction: column; gap: 0; }
.gn-search-group-title { font-family: var(--v4-font-display); font-weight: 800; font-size: 19px; color: var(--v4-forest); margin: 26px 0 8px; }
.gn-search-item {
  display: grid;
  grid-template-columns: 170px 1fr auto;
  gap: 20px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 20px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--v4-shadow);
  transition: transform var(--v4-transition);
}
.gn-search-item:hover { transform: translateY(-3px); }
.gn-search-item img { width: 170px; height: 104px; object-fit: cover; border-radius: 14px; }
.gn-search-item-title { font-family: var(--v4-font-display); font-weight: 800; font-size: 16.5px; color: var(--v4-ink); }
.gn-search-item-meta { color: var(--v4-muted); font-size: 13px; }
.gn-search-none { color: var(--v4-muted); }
.gn-admin-link { display: inline-block; margin-top: 12px; color: var(--v4-coral); font-weight: 600; font-size: 13.5px; }

/* ---------------------------------------------------------------------------
   VIDEO
   --------------------------------------------------------------------------- */
.gn-video-wrap { position: relative; padding-top: 56.25%; border-radius: 22px; overflow: hidden; background: var(--v4-ink); box-shadow: var(--v4-shadow); }
.gn-video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.gn-video-title { font-family: var(--v4-font-display); font-weight: 800; font-size: 16px; color: var(--v4-ink); margin-top: 12px; }
.gn-tiktok-item { background: #fff; border: 1px solid var(--v4-border); border-radius: 22px; overflow: hidden; box-shadow: var(--v4-shadow); }
.gn-tiktok-item blockquote { margin: 0; }
.gn-avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }

/* ---------------------------------------------------------------------------
   LOGIN
   --------------------------------------------------------------------------- */
.gn-login-card {
  max-width: 460px;
  margin: 40px auto 80px;
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 30px;
  box-shadow: var(--v4-shadow-lg);
  padding: 40px;
  text-align: center;
}
.gn-login-logo { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 18px; }
.gn-login-logo-text { font-family: var(--v4-font-display); font-weight: 800; font-size: 20px; color: var(--v4-forest); }
.gn-login-title { font-size: 24px; margin-bottom: 8px; }
.gn-login-desc { color: var(--v4-muted); font-size: 14px; margin-bottom: 24px; }
#googleButton { display: flex; justify-content: center; margin: 16px 0; }
#authStatus { font-size: 14px; }

/* ---------------------------------------------------------------------------
   CHAT AI
   --------------------------------------------------------------------------- */
.gn-chat-section { max-width: 860px; margin: 0 auto; padding: 0 20px 60px; }
.gn-hero { text-align: center; padding: 56px 20px 26px; }
.gn-hero h1 { font-size: clamp(28px, 3.4vw, 40px); }
.gn-hero p { color: var(--v4-muted); max-width: 640px; margin: 0 auto; }
.gn-chat-card {
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 28px;
  box-shadow: var(--v4-shadow-lg);
  overflow: hidden;
}
.gn-chat-header {
  display: flex;
  align-items: center;
  gap: 13px;
  background: var(--v4-forest);
  color: #fff;
  padding: 18px 24px;
}
.gn-chat-avatar {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--v4-coral);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.gn-chat-title { font-family: var(--v4-font-display); font-weight: 800; font-size: 16px; margin: 0; }
.gn-chat-sub { font-size: 12.5px; opacity: .8; margin: 0; display: flex; align-items: center; gap: 6px; }
.gn-status-dot { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; display: inline-block; }
.gn-chat-clear {
  margin-left: auto;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border: 0;
  border-radius: var(--v4-radius-pill);
  padding: 8px 15px;
  font-size: 12.5px;
  cursor: pointer;
  transition: background var(--v4-transition);
}
.gn-chat-clear:hover { background: rgba(255, 255, 255, .24); }
.gn-chat-messages { min-height: 320px; max-height: 460px; overflow-y: auto; padding: 24px; background: var(--v4-mint-2); display: flex; flex-direction: column; gap: 14px; }
.gn-msg-user { display: flex; justify-content: flex-end; }
.gn-msg-ai { display: flex; justify-content: flex-start; }
.gn-msg-bubble {
  max-width: 78%;
  padding: 13px 18px;
  border-radius: 20px;
  font-size: 14.5px;
  line-height: 1.55;
  white-space: pre-wrap;
  animation: v4Fade .3s ease;
}
.gn-msg-user .gn-msg-bubble { background: var(--v4-coral); color: #fff; border-bottom-right-radius: 6px; }
.gn-msg-ai .gn-msg-bubble { background: #fff; border: 1px solid var(--v4-border); color: var(--v4-ink-soft); border-bottom-left-radius: 6px; box-shadow: var(--v4-shadow); }
.gn-chat-suggestions { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 24px 0; background: var(--v4-mint-2); }
.gn-chat-suggestions button {
  background: #fff;
  border: 1px solid var(--v4-border);
  color: var(--v4-forest);
  border-radius: var(--v4-radius-pill);
  padding: 8px 15px;
  font-size: 12.5px;
  cursor: pointer;
  transition: all var(--v4-transition);
}
.gn-chat-suggestions button:hover { border-color: var(--v4-coral); color: var(--v4-coral-dark); }
.gn-typing-indicator {
  display: none;
  align-items: center;
  gap: 5px;
  padding: 12px 24px;
  background: var(--v4-mint-2);
  font-size: 13px;
  color: var(--v4-muted);
}
.gn-typing-indicator.visible { display: flex; }
.gn-typing-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--v4-muted); animation: v4Typing 1.1s infinite; }
.gn-typing-dot:nth-child(2) { animation-delay: .15s; }
.gn-typing-dot:nth-child(3) { animation-delay: .3s; }
@keyframes v4Typing { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-5px); opacity: 1; } }
.gn-chat-input-row { display: flex; gap: 10px; padding: 16px 20px; background: #fff; border-top: 1px solid var(--v4-border); }
.gn-chat-input {
  flex: 1;
  border: 2px solid var(--v4-border);
  border-radius: var(--v4-radius-pill);
  padding: 12px 18px;
  font-size: 14.5px;
  outline: none;
  color: var(--v4-ink);
  transition: border-color var(--v4-transition);
}
.gn-chat-input:focus { border-color: var(--v4-coral); }
.gn-chat-send {
  background: var(--v4-coral);
  color: #fff;
  border: 0;
  border-radius: var(--v4-radius-pill);
  padding: 0 26px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  cursor: pointer;
  transition: background var(--v4-transition);
}
.gn-chat-send:hover { background: var(--v4-coral-dark); }

/* ---------------------------------------------------------------------------
   PIN GATE
   --------------------------------------------------------------------------- */
.pin-gate {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.pin-box { width: 100%; max-width: 440px; padding: 36px; text-align: center; }
.pin-logo {
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 24px;
  color: var(--v4-forest);
  margin-bottom: 10px;
}
.pin-title { font-size: 21px; margin-bottom: 6px; }
.pin-sub { color: var(--v4-muted); font-size: 14px; margin-bottom: 22px; }
.pin-form { display: flex; flex-direction: column; gap: 12px; }
.pin-msg { color: #d64545; font-size: 13.5px; margin-top: 10px; }
.pin-hint { color: var(--v4-muted); font-size: 12.5px; margin-top: 14px; }
.pin-divider { color: var(--v4-muted); font-size: 13px; margin: 14px 0; }

/* ---------------------------------------------------------------------------
   ADMIN + STAFF
   --------------------------------------------------------------------------- */
.admin-app { min-height: 100vh; background: var(--v4-bg); }
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--v4-ink);
  color: #fff;
  padding: 14px 24px;
  position: sticky;
  top: 0;
  z-index: 800;
}
.admin-header-left, .admin-header-right { display: flex; align-items: center; gap: 14px; }
.admin-logo { font-family: var(--v4-font-display); font-weight: 800; font-size: 18px; }
.admin-logo::before { content: ""; display: inline-block; width: 11px; height: 11px; border-radius: 50%; background: var(--v4-coral); margin-right: 9px; }
.admin-title { font-size: 14px; color: rgba(255, 255, 255, .75); }
.admin-user { font-size: 13.5px; color: rgba(255, 255, 255, .85); }
.admin-layout { display: grid; grid-template-columns: 230px 1fr; min-height: calc(100vh - 68px); }
.admin-sidebar { background: #fff; border-right: 1px solid var(--v4-border); padding: 20px 14px; }
.admin-nav { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.admin-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--v4-ink-soft);
  transition: all var(--v4-transition);
}
.admin-nav a:hover { background: var(--v4-mint); color: var(--v4-forest); }
.admin-nav a.active { background: var(--v4-forest); color: #fff; }
.admin-nav a[data-panel="cloud"] { background: var(--v4-mint); color: var(--v4-forest); margin-top: 6px; }
.admin-main { padding: 26px; }
.panel { background: #fff; border: 1px solid var(--v4-border); border-radius: 24px; box-shadow: var(--v4-shadow); padding: 26px; margin-bottom: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.panel-head h2 { font-size: 21px; margin: 0; }
.panel-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.kpi-card {
  background: var(--v4-mint-2);
  border: 1px solid var(--v4-border);
  border-radius: 20px;
  padding: 20px;
}
.kpi-card b { display: block; font-family: var(--v4-font-display); font-weight: 800; font-size: 30px; color: var(--v4-forest); }
.kpi-card span { color: var(--v4-muted); font-size: 13px; }
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.chart-wrap { position: relative; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.table-responsive { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th, .table td { text-align: left; padding: 11px 13px; border-bottom: 1px solid var(--v4-border); vertical-align: middle; }
.table th { background: var(--v4-mint-2); font-family: var(--v4-font-display); font-weight: 700; color: var(--v4-ink); white-space: nowrap; }
.table tr:hover td { background: #faf8f2; }
.badge { display: inline-block; padding: 4px 12px; border-radius: var(--v4-radius-pill); font-size: 12px; font-weight: 700; }
.badge-success { background: var(--v4-mint); color: var(--v4-forest-2); }
.badge-secondary { background: #eceae3; color: var(--v4-muted); }
.config-warning {
  background: #fff4e0;
  border: 1px solid #f5d9a8;
  color: #8a5a00;
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 13.5px;
  margin-bottom: 14px;
}
.toast-msg {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 1500;
  background: var(--v4-ink);
  color: #fff;
  border-radius: 14px;
  padding: 13px 20px;
  font-size: 14px;
  box-shadow: var(--v4-shadow-lg);
  max-width: 360px;
}
.staff-layout { display: grid; grid-template-columns: 340px 1fr; gap: 20px; }
.staff-sessions { background: #fff; border: 1px solid var(--v4-border); border-radius: 22px; padding: 18px; box-shadow: var(--v4-shadow); }
.staff-sessions-head { font-family: var(--v4-font-display); font-weight: 800; font-size: 16px; margin-bottom: 14px; }
.staff-session-item {
  padding: 13px 15px;
  border-radius: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--v4-transition);
  margin-bottom: 8px;
}
.staff-session-item:hover { background: var(--v4-mint-2); }
.staff-session-item.active { background: var(--v4-mint); border-color: var(--v4-forest-3); }
.staff-chat { background: #fff; border: 1px solid var(--v4-border); border-radius: 22px; box-shadow: var(--v4-shadow); padding: 22px; min-height: 420px; }
.staff-empty { color: var(--v4-muted); text-align: center; padding: 60px 20px; font-size: 14px; }

/* ===========================================================================
   FIX — bổ sung class thiếu (dropdown header, gallery, user card, mobile nav…)
   =========================================================================== */

/* Dropdown desktop thực tế sinh từ app.js (.dropdown-content) */
.dropdown-content {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 272px;
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: 18px;
  box-shadow: var(--v4-shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--v4-transition);
  z-index: 950;
  max-height: 70vh;
  overflow-y: auto;
}
.nav-item:hover .dropdown-content { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-content a {
  display: block;
  padding: 9px 14px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--v4-ink-soft);
}
.dropdown-content a:hover { background: var(--v4-mint-2); color: var(--v4-forest); }
.dropdown-content .parent { position: relative; }
.dropdown-content .parent > a { padding-right: 36px; }
.dropdown-content .chevron {
  position: absolute;
  right: 15px;
  top: 16px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--v4-forest-3);
  border-bottom: 2px solid var(--v4-forest-3);
  transform: rotate(-45deg);
  transition: transform var(--v4-transition);
}
.dropdown-content .parent:hover .chevron { transform: rotate(45deg); }
.dropdown-content .childs { display: none; padding: 2px 0 6px 12px; }
.dropdown-content .parent:hover .childs { display: block; }
.dropdown-content .childs a { font-size: 13.5px; padding: 8px 12px; }

/* Mobile nav */
.header-small-items {
  list-style: none;
  margin: 0;
  padding: 10px 0 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Gallery sản phẩm — thumb là <button class="gn-thumb"> chứa <img class="gn-thumb-img"> */
.gn-detail-gallery { display: flex; flex-direction: column; gap: 6px; }
.gn-thumb {
  flex: 0 0 auto;
  width: 86px;
  height: 64px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  cursor: pointer;
  opacity: .65;
  transition: all var(--v4-transition);
}
.gn-thumb:hover { opacity: .9; border-color: var(--v4-forest-3); }
.gn-thumb.active { opacity: 1; border-color: var(--v4-coral); }
.gn-thumb-img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Meta + pagination */
.gn-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 14px 0 18px; padding-bottom: 16px; border-bottom: 1px solid var(--v4-border); }
.gn-meta-item { font-size: 13.5px; color: var(--v4-muted); }
.gn-page-disabled { opacity: .45; cursor: not-allowed; background: var(--v4-mint-2) !important; }

/* Bài viết chi tiết */
.post-article { max-width: 860px; }
.gn-post-content p { margin: 0 0 16px; }
.gn-post-content p + p { margin-top: 4px; }
.gn-post-date { color: var(--v4-muted); font-size: 13px; }

/* Ảnh trong card bài viết */
.article-img { overflow: hidden; border-radius: 22px 22px 0 0; }

/* Tìm kiếm — nhóm kết quả */
.gn-search-group { padding: 4px 0 8px; }

/* User card (login) */
.gn-user-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  padding: 10px 0 6px;
}
.gn-user-name {
  font-family: var(--v4-font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--v4-ink);
  margin: 10px 0 0;
}
.gn-user-email { color: var(--v4-muted); font-size: 13px; margin: 0 0 16px; word-break: break-all; }
.gn-user-actions { display: flex; flex-direction: column; gap: 10px; width: 100%; }

/* Danh mục sidebar (trang sản phẩm) */
.list-cat {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.list-cat li ul { list-style: none; margin: 3px 0 6px; padding-left: 16px; display: flex; flex-direction: column; gap: 2px; }
.list-cat a {
  display: block;
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--v4-ink-soft);
}
.list-cat a:hover { background: var(--v4-mint-2); color: var(--v4-forest); }
.list-cat a.active { background: var(--v4-forest); color: #fff; }

/* Toast icon */
.toast-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
  vertical-align: -3px;
  margin-right: 8px;
}

/* Card link phụ (a bọc card) */
.gn-card-link { color: inherit; text-decoration: none; }

/* ===========================================================================
   V5 — BRAND OVERLAY "Dochoi Gia Nguyễn"
   Navy #021d64 + cam #ff7f27 + teal #31c9a8 (lấy từ CSS thật của
   dochoigianguyen.com). Giữ nguyên mọi class/contract, chỉ thay nhận diện.
   =========================================================================== */

/* HERO — nền navy gradient, chữ trắng, bỏ cảm giác pastel */
.v4-hero {
  background:
    radial-gradient(700px 460px at 88% 10%, rgba(49, 201, 168, .16), transparent 62%),
    radial-gradient(620px 460px at 4% 96%, rgba(255, 154, 82, .14), transparent 60%),
    linear-gradient(135deg, #021d64 0%, #0a2f7e 58%, #123a8c 100%);
}
.v4-hero-title { color: #fff; }
.v4-hero-title .v4-accent { color: #ff9a52; }
.v4-hero-title .v4-accent::after { background: rgba(255, 197, 61, .30); }
.v4-hero-sub { color: rgba(255, 255, 255, .84); }
.v4-hero-chip { background: rgba(255, 255, 255, .14); color: #fff; backdrop-filter: blur(6px); }
.v4-hero-chip i { background: #31c9a8; }
.v4-hero-trust div { color: rgba(255, 255, 255, .84); }
.v4-hero-trust svg { fill: #31c9a8; }
.v4-hero-img-main { border: 6px solid rgba(255, 255, 255, .92); border-radius: 28px; box-shadow: 0 30px 70px rgba(0, 8, 40, .45); }
.v4-hero-float { box-shadow: 0 18px 44px rgba(0, 8, 40, .28); }
.v4-hero-float b { color: #ff7f27; }
.v4-blob-1 { background: rgba(49, 201, 168, .10); }
.v4-blob-2 { background: rgba(255, 127, 39, .10); }

/* MARQUEE — bỏ nghiêng/scale, nền navy phẳng */
.v4-marquee {
  background: linear-gradient(90deg, #021d64, #0a2f7e);
  transform: none;
  margin: 0;
  box-shadow: 0 10px 30px rgba(2, 29, 100, .18);
}
.v4-marquee-track span em { color: #ff9a52; }
.v4-marquee-track span i { background: #31c9a8; }

/* STATS */
.v4-stat b { color: #021d64; }
.v4-stat b span { color: #ff7f27; }

/* SECTION HEAD */
.v4-label { color: #ff7f27; }
.v4-label::before { background: #ff7f27; }
.v4-sec-head h2 { color: #0b1a3f; }

/* SERVICES */
.v4-services { background: linear-gradient(180deg, #ffffff 0%, #f2f6ff 100%); }
.v4-service-tags span { background: #eef4ff; color: #123a8c; }
.v4-link-more { color: #ff7f27; }
.v4-service-media::after { color: #31c9a8; -webkit-text-stroke: 1px rgba(2, 29, 100, .18); }

/* WHY — navy đậm */
.v4-why { background: linear-gradient(135deg, #021d64 0%, #0b2f7e 100%); }
.v4-why::before { background: radial-gradient(circle, rgba(255, 154, 82, .22), transparent 70%); }
.v4-why .v4-label { color: #31c9a8; }
.v4-why .v4-label::before { background: #31c9a8; }
.v4-why h2 span { color: #ff9a52; }
.v4-why .gn-btn-navy { background: #ff7f27; color: #fff; }
.v4-why .gn-btn-navy:hover { background: #ff9a52; color: #fff; }
.v4-why-num { color: #ff9a52; }

/* PLAY / RAIL / NEWS */
.v4-play-count { background: rgba(2, 29, 100, .92); color: #fff; }
.v4-play-body a { background: #eef4ff; color: #123a8c; }
.v4-play-body a:hover { background: #ff7f27; color: #fff; }
.v4-rail-meta { color: #ff7f27; }
.v4-rail-body h3 a:hover { color: #ff7f27; }
.v4-news-row time { color: #ff7f27; }
.v4-news-row h3 a:hover { color: #ff7f27; }

/* STEPS */
.v4-step-dot { border-color: #b9c8ef; color: #ff7f27; }
.v4-steps::before { background: repeating-linear-gradient(90deg, #c8d4f2 0 12px, transparent 12px 22px); }

/* CTA — cam gradient thương hiệu */
.v4-cta-band {
  background:
    radial-gradient(420px 300px at 92% 8%, rgba(255, 224, 138, .45), transparent 60%),
    linear-gradient(135deg, #ffa04d 0%, #ff7f27 48%, #e86f12 100%);
  box-shadow: 0 30px 70px rgba(232, 111, 18, .30);
}
.v4-cta-left .v4-label { color: #fff; }
.v4-cta-left .v4-label::before { background: #fff; }
.v4-cta-left h2 span { color: #0b1a3f; }
.v4-quote-card { box-shadow: 0 26px 60px rgba(120, 48, 0, .25); }

/* FORM */
.gn-form-field input, .gn-form-field select { background: #f6f9ff; border-color: #dbe3f5; }
.gn-form-field input:focus, .gn-form-field select:focus { border-color: #ff7f27; background: #fff; }

/* HEADER / NAV */
.topbar { background: #021d64; }
.topbar a:hover { color: #31c9a8; }
.nav-item.active > a { background: #021d64; }
.nav-item > a:hover { background: #eef4ff; color: #123a8c; }
.header-small-item.active > a { background: #eef4ff; color: #123a8c; }
.header-small-item > a:hover { background: #f2f6ff; }
.v3-nav-cta { box-shadow: 0 10px 22px rgba(232, 111, 18, .32); }
.search { background: rgba(2, 29, 100, .78); }
.screen-opacity { background: rgba(2, 29, 100, .55); }

/* DROPDOWN + LIST + PAGINATION */
.dropdown-content a:hover { background: #eef4ff; color: #123a8c; }
.dropdown-content .chevron { border-color: #2b5bbf; }
.list-cat a:hover { background: #eef4ff; color: #123a8c; }
.list-cat a.active { background: #021d64; }
.pagination li.active span { background: #021d64; border-color: #021d64; }
.pagination li a:hover { border-color: #ff7f27; color: #e86f12; }
.gn-page-disabled { background: #f2f5fc !important; }
.gn-quick-nav a, .gn-jump a { border-color: #dbe3f5; color: #123a8c; }
.gn-quick-nav a:hover, .gn-jump a:hover { background: #021d64; border-color: #021d64; }
.gn-thumb.active { border-color: #ff7f27; }
.gn-thumb:hover { border-color: #2b5bbf; }

/* FOOTER — navy tối */
.footer { background: #051138; }
.footer-heading::after { background: #ff7f27; }
.contact-list svg { fill: #ff7f27; }
.social ul li a:hover { background: #ff7f27; }
.copyright span { color: #ff9a52; }

/* NÚT */
.gn-btn-orange, .gn-btn-primary, .button-purple { background: linear-gradient(135deg, #ff9a52, #ff7f27); }
.gn-btn-orange:hover, .gn-btn-primary:hover, .button-purple:hover { background: linear-gradient(135deg, #ffb06e, #ff8f3d); }
.gn-btn-navy { background: #021d64; }
.gn-btn-navy:hover { background: #123a8c; }
.gn-btn-white, .gn-btn-outline, .button-white { border-color: #dbe3f5; color: #123a8c; }

/* TIÊU ĐỀ CHUNG */
.gn-page-title, .section-title { color: #0b1a3f; }
.gn-page-title::after, .section-title::after { background: linear-gradient(90deg, #ff7f27, #31c9a8); }
.gn-heading { color: #021d64; }
.gn-detail-title { color: #0b1a3f; }

/* ===========================================================================
   POLISH V5.1 — logo footer, chi tiết bo góc, shadow chuẩn
   =========================================================================== */

/* Logo footer: hiển thị màu gốc (bỏ filter trắng tinh), đặt trong khung trắng */
.footer .logo-footer {
  display: inline-flex;
  background: #fff;
  border-radius: 16px;
  padding: 12px 18px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, .25);
  margin-bottom: 16px;
}
.footer .gn-logo-img { filter: none !important; height: 40px !important; }

/* Header: shadow mềm thay cho viền cứng */
.header-navbar { box-shadow: 0 1px 0 rgba(2, 29, 100, .04), 0 10px 30px rgba(2, 29, 100, .05); }

/* Nút: gradient + shadow nổi */
.gn-btn, .button { box-shadow: 0 8px 18px rgba(2, 29, 100, .10); }
.gn-btn-orange, .gn-btn-primary, .button-purple { box-shadow: 0 10px 22px rgba(232, 111, 18, .28); }

/* Card: bo góc + hover đồng bộ */
.v4-play-card, .v4-rail-card, .gn-card, .product-all-item, .project-card, .article-item,
.gn-detail-info, .group-sidebar, .v4-quote-card { border-radius: 20px; }
.v4-service-media img { border-radius: 22px; }
.kpi-card, .admin-main .card, .staff-chat { border-radius: 18px; }

/* Liên kết trong nội dung: gạch chân rõ khi hover để tránh nhầm */
.gn-article a, .gn-post-content a, .article-body a, .gn-info-item a, .v4-news-row h3 a {
  text-decoration: underline;
  text-decoration-color: rgba(255, 127, 39, .45);
  text-underline-offset: 3px;
}
.gn-article a:hover, .gn-post-content a:hover, .article-body a:hover, .gn-info-item a:hover,
.v4-news-row h3 a:hover { text-decoration-color: var(--v4-coral); }

/* ---------------------------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-list { display: none; }
  .header-navbar-reponsive { display: block; }
  .header-navbar { position: relative; }
  .mobile-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 64px; }
  .v4-hero-grid { grid-template-columns: 1fr; gap: 46px; }
  .v4-hero-img-sub { right: 4%; }
  .v4-why { padding: 56px 34px; }
  .v4-why-grid { grid-template-columns: 1fr; gap: 34px; }
  .v4-play { grid-template-columns: repeat(2, 1fr); }
  .v4-steps { grid-template-columns: repeat(3, 1fr); row-gap: 34px; }
  .v4-steps::before { display: none; }
  .v4-cta-band { grid-template-columns: 1fr; padding: 46px 34px; gap: 36px; }
  .gn-detail-layout { grid-template-columns: 1fr; }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { border-right: 0; border-bottom: 1px solid var(--v4-border); }
  .admin-nav { flex-direction: row; flex-wrap: wrap; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .staff-layout { grid-template-columns: 1fr; }
  .v4-rail { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  body { font-size: 15px; }
  .gn-section { padding: 56px 0; }
  .v4-hero { padding: 44px 0 64px; }
  .v4-hero-title { font-size: 34px; }
  .v4-hero-float { display: none; }
  .v4-stats-band { grid-template-columns: repeat(2, 1fr); gap: 22px 12px; }
  .v4-service { grid-template-columns: 1fr; gap: 24px; }
  .v4-service:nth-child(even) .v4-service-media { order: 0; }
  .v4-sec-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .v4-play { grid-template-columns: 1fr; }
  .v4-play-card.wide { grid-column: span 1; }
  .v4-steps { grid-template-columns: 1fr 1fr; }
  .v4-rail { grid-template-columns: 1fr; }
  .v4-news-row { grid-template-columns: 1fr; gap: 14px; }
  .v4-news-row img { width: 100%; height: 150px; }
  .v4-news-row > a.v4-link-more { display: none; }
  .v4-why { margin: 0 12px; border-radius: 30px; padding: 44px 24px; }
  .v4-cta { padding: 20px 12px 60px; }
  .v4-cta-band { padding: 40px 24px; border-radius: 30px; }
  .gn-form-grid { grid-template-columns: 1fr; }
  .gn-article, .gn-service { padding: 24px 20px; }
  .gn-search-item { grid-template-columns: 1fr; }
  .gn-search-item img { width: 100%; height: 140px; }
  .topbar-right span { display: none; }
  .topbar { font-size: 12px; }
  .chart-grid { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .admin-main { padding: 16px; }
  .panel { padding: 18px; }
  .gn-chat-messages { min-height: 260px; }
  .gn-msg-bubble { max-width: 88%; }
  .v4-hero-img-sub { width: 55%; right: 0; bottom: -8%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ===========================================================================
   POLISH V5.2 — bổ sung CSS cho class thiếu (audit DOM 02/08/2026):
   gn-grid, gn-info-card, gn-form-card, gn-tabs, gn-empty-note, detail wrapper,
   gn-search-form, chats-list, actions, table-striped/hover, icon MXH, card-img
   =========================================================================== */

/* ---------- Lưới 2 cột chung (liên hệ, video) ---------- */
.gn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}

/* ---------- Card thông tin / form (trang liên hệ) ---------- */
.gn-info-card,
.gn-form-card {
  background: #fff;
  border: 1px solid var(--v4-border);
  border-radius: var(--v4-radius);
  box-shadow: var(--v4-shadow);
  padding: 26px;
}
.gn-info-card h2,
.gn-form-card h2 {
  margin: 0 0 18px;
  padding-bottom: 12px;
  font-size: 20px;
  color: var(--v4-forest);
  border-bottom: 1px solid var(--v4-border);
  position: relative;
}
.gn-info-card h2::after,
.gn-form-card h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 58px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--v4-coral), var(--v4-sun));
}
.gn-info-item {
  padding: 13px 0;
  border-bottom: 1px solid var(--v4-border);
  color: var(--v4-ink-soft);
  font-size: 14px;
  line-height: 1.65;
}
.gn-info-item:last-child { border-bottom: 0; padding-bottom: 2px; }
.gn-info-item strong {
  display: block;
  color: var(--v4-forest);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 2px;
}

/* textarea trong form liên hệ (trước đây không có CSS → khung vỡ) */
.gn-form-field textarea {
  border: 2px solid var(--v4-border);
  background: var(--v4-mint-2);
  border-radius: 14px;
  padding: 12px 15px;
  font-size: 14px;
  font-family: var(--v4-font-body);
  color: var(--v4-ink);
  outline: none;
  transition: border-color var(--v4-transition), background var(--v4-transition);
  width: 100%;
  min-height: 110px;
  resize: vertical;
}
.gn-form-field textarea:focus { border-color: var(--v4-coral); background: #fff; }
.gn-form-card .gn-btn { padding: 13px 36px; }

/* ---------- Tabs (chính sách, video) ---------- */
.gn-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}
.gn-tab-btn {
  background: #fff;
  border: 1.5px solid var(--v4-border);
  border-radius: var(--v4-radius-pill);
  padding: 10px 18px;
  font-family: var(--v4-font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--v4-ink-soft);
  cursor: pointer;
  transition: all var(--v4-transition);
}
.gn-tab-btn:hover { border-color: var(--v4-coral); color: var(--v4-forest); transform: translateY(-1px); }
.gn-tab-btn.active {
  background: linear-gradient(135deg, var(--v4-forest), var(--v4-forest-2));
  color: #fff;
  border-color: var(--v4-forest);
  box-shadow: 0 8px 18px rgba(2, 29, 100, .22);
}
.gn-tab-btn:focus-visible { outline: 3px solid rgba(255, 127, 39, .45); outline-offset: 2px; }

/* ---------- Ghi chú nội dung trống trong tab ---------- */
.gn-empty-note {
  display: block;
  background: #fff8ef;
  border-left: 4px solid var(--v4-coral);
  border-radius: 12px;
  padding: 16px 18px;
  color: var(--v4-ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

/* ---------- Wrapper trang chi tiết (chỉ thêm spacing, giữ width container) ---------- */
.product-detail,
.post-detail,
.project-detail { padding-top: 8px; }

/* ---------- Form tìm kiếm ---------- */
.gn-search-form {
  display: flex;
  gap: 10px;
  max-width: 640px;
  margin-bottom: 24px;
}
.gn-search-form .form-control {
  flex: 1;
  min-width: 0;
  border-radius: var(--v4-radius-pill);
  padding: 12px 20px;
}
.gn-search-form .button {
  flex: 0 0 auto;
  border-radius: var(--v4-radius-pill);
  padding: 12px 26px;
  white-space: nowrap;
}

/* ---------- Lịch sử chat (admin) ---------- */
.chats-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 6px;
}
.chats-list .chat-card { border-radius: 18px; flex: 0 0 auto; }
.chats-list .chat-body { max-height: 320px; overflow-y: auto; }
.chat-msg {
  padding: 10px 0;
  border-bottom: 1px dashed var(--v4-border);
}
.chat-msg:last-child { border-bottom: 0; }
.chat-role {
  font-size: 12px;
  font-weight: 800;
  color: var(--v4-forest);
  margin-bottom: 3px;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.chat-msg.chat-user .chat-role { color: var(--v4-coral-dark); }
.chat-content {
  font-size: 14px;
  line-height: 1.6;
  color: var(--v4-ink);
  white-space: pre-wrap;
  word-break: break-word;
}
.chat-time { font-size: 11.5px; color: var(--v4-muted); margin-top: 4px; }

/* ---------- Cột hành động trong bảng admin ---------- */
.table th.actions,
.table td.actions { text-align: right; white-space: nowrap; }

/* ---------- Bảng admin: thead navy + stripe + hover ---------- */
.table thead th {
  background: var(--v4-forest);
  color: #fff;
  border-bottom: 2px solid var(--v4-forest-2);
}
.table-striped tbody tr:nth-child(odd) td { background: var(--v4-mint-2); }
.table-hover tbody tr:hover td { background: #eef4ff; }

/* ---------- Icon mạng xã hội: giữ màu thương hiệu gốc (bỏ filter trắng) ---------- */
.social ul li img { filter: none !important; }
.social ul li a { background: rgba(255, 255, 255, .12); }
.social ul li a:hover { background: rgba(255, 255, 255, .22); transform: translateY(-3px); }

/* Nút cố định: nền theo thương hiệu từng kênh + hiệu ứng Zalo */
.contact-fixed a img { filter: none !important; }
.contact-fixed a[title="Facebook"] { background: #1877f2; }
.contact-fixed a[title="Zalo"] { background: #0068ff; }
.contact-fixed a[title="Gọi hotline"] { background: linear-gradient(135deg, var(--v4-coral), var(--v4-coral-dark)); }
@keyframes gnZaloPulse {
  0%, 100% { box-shadow: 0 8px 18px rgba(0, 104, 255, .35); }
  50% { box-shadow: 0 8px 24px rgba(0, 104, 255, .6), 0 0 0 8px rgba(0, 104, 255, .12); }
}
@media (prefers-reduced-motion: no-preference) {
  .contact-fixed a[title="Zalo"] { animation: gnZaloPulse 2.4s ease-in-out infinite; }
}

/* ---------- Ảnh sản phẩm: tỉ lệ chuẩn + zoom khi hover + placeholder ---------- */
.card-img {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f2f5fc, #e9f0fb);
}
.card-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}
.product-all-item:hover .card-img img { transform: scale(1.06); }
.product-all-item:hover {
  transform: translateY(-6px);
  border-color: var(--v4-coral);
}
/* Bento: chuẩn bị sẵn cho layout so le */
.gn-tall .card-img img { aspect-ratio: 3 / 4; }
.gn-wide .card-img img { aspect-ratio: 16 / 10; }
/* Ô trống khi chưa có ảnh */
.card-img .gn-empty {
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f2f5fc, #e9f0fb);
}
.gn-img-placeholder {
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  text-align: center;
  background: linear-gradient(135deg, #f2f5fc, #e9f0fb);
  color: var(--v4-muted);
  font-size: 13px;
}
.gn-img-placeholder .gn-ph-icon { font-size: 36px; line-height: 1; }

/* ---------- Responsive V5.2 ---------- */
@media (max-width: 900px) {
  .gn-grid { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 600px) {
  .gn-search-form { flex-direction: column; }
  .gn-search-form .button { width: 100%; }
  .gn-info-card, .gn-form-card { padding: 20px; }
  .gn-tab-btn { padding: 9px 14px; font-size: 13px; }
  .chats-list { max-height: 440px; }
}