/* =========================================
   VARIABLES & GLOBALS
   ========================================= */
:root {
  --primary-color: #0056b3; /* Xanh dương đậm, uy tín */
  --secondary-color: #ff4500; /* Đỏ/Cam làm nổi bật nút CTA */
  --text-main: #333333;
  --text-light: #666666;
  --bg-light: #f4f7fb; /* Xám nhạt, hiện đại */
  --white: #ffffff;
  --border-radius: 8px;
  --transition: all 0.3s ease;
  --zalo-color: #0068ff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html {
  scroll-behavior: smooth; /* Cho cuộn trang mượt khi click CTA */
}

/* Offset cho sticky header khi scroll tới anchor - tránh bị header che */
section[id] {
  scroll-margin-top: 80px;
}

/* Honeypot field - ẩn khỏi người dùng nhưng vẫn tồn tại cho bot điền vào */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

body {
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--white);
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 40px;
  text-transform: uppercase;
}

.section-bg {
  background-color: var(--bg-light);
}

.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-white {
  color: var(--white);
}
.mt-30 {
  margin-top: 30px;
}
.mb-20 {
  margin-bottom: 20px;
}

/* =========================================
   HEADER & LOGO
   ========================================= */
.site-header {
  background: var(--white);
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 50px;
  width: 50px;
  object-fit: contain;
  animation: logoBreathing 3.5s ease-in-out infinite;
  transform-origin: center;
}

@keyframes logoBreathing {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 2px 4px rgba(0, 86, 179, 0.15));
  }
  50% {
    transform: scale(1.08);
    filter: drop-shadow(0 4px 10px rgba(0, 86, 179, 0.35));
  }
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary-color);
  letter-spacing: 1px;
}

.logo-text .highlight-text {
  color: var(--secondary-color);
}

.header-phone {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1e7e34; /* đã darken để đạt WCAG AA contrast >= 4.5 */
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}

.header-phone:hover {
  color: #145524;
}

/* Chấm xanh "đang online" trước icon phone */
.header-phone::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  margin-right: 2px;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: onlinePulse 2s infinite;
  flex-shrink: 0;
}

@keyframes onlinePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.75);
    transform: scale(1);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(34, 197, 94, 0);
    transform: scale(1.15);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
    transform: scale(1);
  }
}

/* Icon điện thoại reng định kỳ - gợi ý khách gọi ngay */
.header-phone i {
  display: inline-block;
  transform-origin: center;
  animation: phoneRing 4s ease-in-out infinite;
}

@keyframes phoneRing {
  0%, 65%, 100% { transform: rotate(0deg); }
  70%  { transform: rotate(-15deg); }
  74%  { transform: rotate(15deg); }
  78%  { transform: rotate(-13deg); }
  82%  { transform: rotate(13deg); }
  86%  { transform: rotate(-8deg); }
  90%  { transform: rotate(8deg); }
  94%  { transform: rotate(0deg); }
}

/* Respect accessibility: user bật "Giảm chuyển động" thì tắt anim */
@media (prefers-reduced-motion: reduce) {
  .logo img,
  .header-phone::before,
  .header-phone i {
    animation: none !important;
  }
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 8px;
}

.btn-primary {
  background-color: var(--secondary-color);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 69, 0, 0.4);
}

.btn-primary:hover {
  background-color: #e63e00;
  transform: translateY(-2px);
}

.btn-zalo {
  background-color: var(--zalo-color);
  color: var(--white);
}

.btn-zalo:hover {
  background-color: #005ce6;
  transform: translateY(-2px);
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.2rem;
}

.btn-submit {
  width: 100%;
  background-color: var(--secondary-color);
  color: #fff;
  padding: 15px;
  font-size: 1.2rem;
  margin-top: 10px;
}

.pulse {
  animation: pulsing 1.5s infinite;
}

@keyframes pulsing {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 69, 0, 0.7);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(255, 69, 0, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 69, 0, 0);
  }
}

/* =========================================
   SECTION 1: HERO
   ========================================= */
.hero {
  padding: 80px 0 100px;
  background:
    linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.9) 0%,
      rgba(240, 248, 255, 0.95) 100%
    ),
    url("./assets/hero_cup_plastic_bg.webp") center/cover no-repeat;
  position: relative;
}

.hero-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.hero-content {
  flex: 1;
}

.hero-title {
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 900;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--secondary-color);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 25px;
}

.hero-benefits li {
  margin-bottom: 12px;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-benefits li i {
  color: var(--zalo-color);
  font-size: 1.2rem;
}

.cta-group {
  margin-top: 35px;
  display: flex;
  gap: 15px;
}

.hero-image {
  flex: 1;
  text-align: center;
  width: 100%;
  max-width: 100%;
  min-width: 0; /* Cho phép flex item shrink, chống bug infinite width với aspect-ratio */
}

.hero-image > img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
  animation: float 6s ease-in-out infinite;
}

.heroSwiper {
  width: 100%;
  max-width: 100%;
  height: 650px;
  background-color: #f4f7fb;
  border-radius: 10px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.heroSwiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Lấp đầy slide - đẹp hơn, không có viền trắng */
  animation: none;
  border-radius: 10px;
}

.heroSwiper .swiper-button-next,
.heroSwiper .swiper-button-prev {
  color: var(--primary-color) !important;
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
  100% {
    transform: translateY(0);
  }
}

/* =========================================
   SECTION 2: REASONS
   ========================================= */
.reasons {
  padding: 80px 0;
}

.grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.reason-card {
  background: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.reason-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.reason-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.reason-card h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: #222;
}

.reason-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* =========================================
   SECTION 3: PRODUCTS
   ========================================= */
.products {
  padding: 80px 0;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.05rem;
  margin-top: -25px;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.product-group-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(0, 86, 179, 0.15);
  display: flex;
  align-items: center;
  gap: 12px;
}

.product-group-title i {
  font-size: 1.4rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.product-card {
  background: #fff;
  border: 1px solid #e4e7ee;
  border-radius: 12px;
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.product-card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 10px 25px rgba(0, 86, 179, 0.12);
  transform: translateY(-4px);
}

.product-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 86, 179, 0.1), rgba(0, 86, 179, 0.04));
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.product-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 6px;
  line-height: 1.3;
}

.product-meta {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 14px;
  line-height: 1.5;
  min-height: 2.6em;
}

.product-volumes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: auto;
}

.product-volumes span {
  display: inline-block;
  background: rgba(0, 86, 179, 0.08);
  color: var(--primary-color);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 4px 11px;
  border-radius: 20px;
  border: 1px solid rgba(0, 86, 179, 0.15);
  white-space: nowrap;
}

.product-note {
  text-align: center;
  margin-top: 35px;
  padding: 16px 20px;
  background: rgba(255, 69, 0, 0.05);
  border: 1px dashed rgba(255, 69, 0, 0.3);
  border-radius: var(--border-radius);
  color: var(--text-main);
  font-size: 0.95rem;
}

.product-note i {
  color: var(--secondary-color);
  margin-right: 6px;
}

.product-note a {
  color: var(--secondary-color);
  font-weight: 700;
  text-decoration: underline;
}

/* =========================================
   SECTION 4: PROCESS
   ========================================= */
.process {
  padding: 80px 0;
}

.timeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: center;
}

.step {
  flex: 1;
  padding: 20px;
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0 auto 15px;
  box-shadow: 0 5px 15px rgba(0, 86, 179, 0.3);
}

.step h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-light);
}

.step-arrow {
  color: #ccc;
  font-size: 2rem;
}

/* =========================================
   SECTION 5: PRICING
   ========================================= */
.pricing {
  padding: 80px 0;
}

.pricing-note {
  max-width: 600px;
  margin: -20px auto 40px;
  color: var(--text-light);
  font-style: italic;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.price-card {
  border: 1px solid #eee;
  border-radius: var(--border-radius);
  padding: 40px 30px;
  background: var(--white);
  transition: var(--transition);
  position: relative;
}

.price-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.price-card.popular {
  border: 2px solid var(--secondary-color);
  transform: scale(1.05);
  box-shadow: 0 15px 30px rgba(255, 69, 0, 0.15);
}

.price-card.popular:hover {
  transform: scale(1.05) translateY(-5px);
}

.badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary-color);
  color: #fff;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: bold;
  white-space: nowrap;
}

.price-card h3 {
  font-size: 1.4rem;
  margin-bottom: 5px;
  color: var(--primary-color);
}

.price-card .qty {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.price-card .price {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: #222;
}

.price-card .price strong {
  font-size: 2.5rem;
  color: var(--secondary-color);
}

/* =========================================
   SECTION 6: GALLERY (SWIPER)
   ========================================= */
.gallery {
  padding: 80px 0;
}

.swiper {
  width: 100%;
  padding-bottom: 50px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.gallery-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: #fff;
  padding: 20px 10px 10px;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
}

.swiper-button-next,
.swiper-button-prev {
  color: var(--secondary-color) !important;
}
.swiper-pagination-bullet-active {
  background: var(--secondary-color) !important;
}

/* Tăng vùng chạm cho bullet pagination lên >= 24x24 (WCAG 2.5.5) */
.swiper-pagination-bullet {
  width: 10px !important;
  height: 10px !important;
  position: relative;
  margin: 0 7px !important;
}
.swiper-pagination-bullet::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
}

/* =========================================
   SECTION 7: COMMITMENT
   ========================================= */
.commitment {
  padding: 80px 0;
  background-image: url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cg fill="none" fill-rule="evenodd"%3E%3Cg fill="%230056b3" fill-opacity="0.05"%3E%3Cpath d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');
}

.commitment-wrap {
  background: var(--white);
  padding: 50px;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  max-width: 800px;
  margin: 0 auto;
}

.check-list {
  text-align: left;
  display: inline-block;
}

.check-list li {
  font-size: 1.15rem;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.check-list li i {
  color: #28a745;
  font-size: 1.3rem;
  background: rgba(40, 167, 69, 0.1);
  padding: 8px;
  border-radius: 50%;
}

/* =========================================
   SECTION 8: LEAD FORM
   ========================================= */
.lead-form-section {
  padding: 100px 0;
  background:
    linear-gradient(
      135deg,
      rgba(0, 86, 179, 0.9) 0%,
      rgba(0, 40, 85, 0.95) 100%
    ),
    url("./assets/form_lead_bg.webp") center/cover no-repeat;
  color: var(--white);
  position: relative;
}

.form-wrapper {
  display: flex;
  gap: 50px;
  align-items: center;
}

.form-content {
  flex: 1;
}

.contact-info-boxes {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-box {
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-box i {
  font-size: 2.5rem;
  color: #fff;
}

.contact-box span {
  display: block;
  font-size: 0.9rem;
  opacity: 0.9;
}

.contact-box strong {
  font-size: 1.4rem;
  letter-spacing: 1px;
}

.form-box {
  flex: 1;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  color: var(--text-main);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}
.req {
  color: red;
}

.form-group input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ccc;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

/* =========================================
   SECTION 9: FOOTER
   ========================================= */
.footer {
  background: #111;
  color: #aaa;
  padding: 50px 0;
}

.footer h3 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.footer strong {
  color: #fff;
}

.footer p {
  margin-bottom: 10px;
}

.slogan {
  margin-top: 30px;
  font-style: italic;
  color: var(--secondary-color);
  font-size: 1.1rem;
}

/* =========================================
   FLOATING ACTIONS
   ========================================= */
.floating-actions {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  z-index: 999;
}

.float-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  animation: floatPulse 2s infinite;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-btn.call {
  background: #28a745;
  color: #fff;
  font-size: 1.8rem;
}

.float-btn.zalo-ch {
  background: #fff;
}

.float-btn.zalo-ch img {
  width: 40px;
}

@keyframes floatPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.5);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(40, 167, 69, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(40, 167, 69, 0);
  }
}

/* =========================================
   RESPONSIVE DESIGN (MOBILE FIRST OVERRIDES)
   ========================================= */
@media (max-width: 992px) {
  .hero-container,
  .form-wrapper {
    flex-direction: column;
  }
  .grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline {
    flex-direction: column;
    gap: 20px;
  }
  .step-arrow i {
    transform: rotate(90deg);
  }
  .price-card.popular {
    transform: none;
    border-color: #eee;
  }
  .price-card.popular:hover {
    transform: translateY(-10px);
  }
  .hero-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 600px) {
  .logo img {
    height: 40px;
    width: 40px;
  }
  .logo {
    gap: 8px;
  }
  .logo-text {
    font-size: 1.05rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
  }
  .header-phone {
    font-size: 0.95rem;
    gap: 6px;
  }
  .container {
    padding: 0 15px;
  }
  /* Mobile: height phù hợp chiều dọc điện thoại */
  .heroSwiper {
    height: 480px;
  }
  .grid-6,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .product-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .product-card {
    padding: 20px 18px;
  }
  .product-icon {
    width: 54px;
    height: 54px;
    font-size: 1.5rem;
    margin-bottom: 12px;
  }
  .product-group-title {
    font-size: 1.15rem;
    margin: 30px 0 16px;
  }
  .product-meta {
    min-height: 0;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-benefits li {
    font-size: 1rem;
  }
  .cta-group {
    flex-direction: column;
  }
  .section-title {
    font-size: 1.7rem;
    margin-bottom: 28px;
  }

  /* Pricing mobile: compact padding, bỏ scale popular để ko đè card khác */
  .price-card {
    padding: 28px 22px;
  }
  .price-card.popular {
    transform: none;
    margin-top: 10px;
  }
  .price-card .price strong {
    font-size: 2.1rem;
  }

  /* Product card mobile: compact */
  .product-card {
    padding: 16px;
  }
  .product-img {
    height: 170px;
  }

  /* Reason card mobile: padding gọn hơn */
  .reason-card {
    padding: 24px 20px;
  }

  /* Form wrapper mobile: thu gọn contact boxes */
  .contact-info-boxes {
    flex-direction: row;
    gap: 10px;
  }
  .contact-box {
    flex: 1;
    padding: 12px;
    gap: 10px;
  }
  .contact-box i {
    font-size: 1.6rem;
  }
  .contact-box span {
    font-size: 0.75rem;
  }
  .contact-box strong {
    font-size: 0.95rem;
    letter-spacing: 0;
  }
  .contact-box.zalo img {
    width: 22px;
    height: 22px;
    margin-right: 8px !important;
  }

  .form-box {
    padding: 25px 20px;
  }
  .commitment-wrap {
    padding: 30px 20px;
  }
  .floating-actions {
    bottom: 15px;
    right: 15px;
  }
  .float-btn {
    width: 50px;
    height: 50px;
  }
  .float-btn.call {
    font-size: 1.5rem;
  }
  .float-btn.zalo-ch img {
    width: 30px;
  }

  /* Gallery: cho slide có padding để peek effect không chạm edge */
  #gallery .swiper {
    padding-left: 8px;
    padding-right: 8px;
  }
  .gallery-item img {
    height: 240px;
  }
}

/* Mobile rộng (≥440px): hiện reasons 2 cột để giảm scroll */
@media (min-width: 440px) and (max-width: 600px) {
  .grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =========================================
   FAQ SECTION (accordion)
   ========================================= */
.faq {
  padding: 70px 0;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border-radius: var(--border-radius);
  margin-bottom: 14px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  border: 1px solid #e6ecf3;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: transparent;
  border: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary-color);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: var(--transition);
}
.faq-q:hover {
  background: var(--bg-light);
}
.faq-q:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: -2px;
}
.faq-icon {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--secondary-color);
  transition: transform 0.3s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(180deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 22px;
  color: var(--text-main);
  line-height: 1.7;
}
.faq-item.open .faq-a {
  max-height: 500px;
  padding: 0 22px 18px;
}
.faq-a p,
.faq-a ul {
  margin-bottom: 8px;
}
.faq-a ul {
  padding-left: 20px;
  list-style: disc;
}
.faq-a strong {
  color: var(--primary-color);
}

/* =========================================
   FORM MESSAGE (inline, thay alert)
   ========================================= */
.form-message {
  display: none;
  margin-top: 15px;
  padding: 12px 16px;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  font-size: 0.95rem;
  animation: msgFadeIn 0.25s ease;
}
.form-message.show {
  display: block;
}
.form-message.success {
  background: #e8f7ed;
  color: #1d7a38;
  border: 1px solid #b8e3c4;
}
.form-message.error {
  background: #fdecec;
  color: #b3261e;
  border: 1px solid #f5c2c0;
}
@keyframes msgFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .faq {
    padding: 50px 0;
  }
  .faq-q {
    font-size: 0.98rem;
    padding: 16px 18px;
  }
  .faq-a {
    padding: 0 18px;
    font-size: 0.95rem;
  }
  .faq-item.open .faq-a {
    padding: 0 18px 16px;
  }
}