/* Công Định Auto - Style riêng cho trang VinFast (vinfast.html). Tách từ HTML để trình duyệt cache được. */
    /* -------------------------------------------------------------
       DEDICATED STYLES FOR VINFAST & VF3 RENTAL LANDING PAGE
       ------------------------------------------------------------- */
    *, *::before, *::after {
      box-sizing: border-box;
    }
    html, body {
      overflow-x: hidden;
      max-width: 100%;
      margin: 0;
      padding: 0;
    }

    :root {
      --vf-cyan: #00e5ff;
      --vf-cyan-glow: rgba(0, 229, 255, 0.35);
      --vf-electric: #0066ff;
      --vf-accent: #ff5500;
      --vf-card-bg: #131b2c;
      --vf-card-border: #1e2c47;
      --vf-badge-bg: rgba(0, 229, 255, 0.12);
      --vf-badge-border: rgba(0, 229, 255, 0.3);
    }

    body {
      background-color: #0b0f19;
      color: #f1f5f9;
      font-family: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    }

    /* Top Announcement Bar */
    .vf-topbar {
      background: linear-gradient(90deg, #0b0f19 0%, #151f33 50%, #0b0f19 100%);
      border-bottom: 1px solid rgba(255, 85, 0, 0.3);
      padding: 8px 0;
      font-size: 13px;
      color: #94a3b8;
    }
    .vf-topbar-right {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    /* Mobile Drawer Menu */
    .vf-mobile-menu {
      display: none;
      background: #0b101b;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      border-bottom: 2px solid var(--primary);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.8);
    }
    .vf-mobile-menu.is-active {
      display: block;
      animation: vfSlideDown 0.25s ease;
    }
    @keyframes vfSlideDown {
      from { opacity: 0; transform: translateY(-10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .vf-mobile-menu-inner {
      padding: 14px 18px 20px;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .vf-mobile-menu-item {
      display: flex;
      align-items: center;
      padding: 11px 14px;
      border-radius: 8px;
      color: #cbd5e1;
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      transition: all 0.2s ease;
      background: rgba(255, 255, 255, 0.02);
    }
    .vf-mobile-menu-item:hover, .vf-mobile-menu-item:active {
      background: rgba(255, 85, 0, 0.12);
      color: #ffffff;
      padding-left: 18px;
    }
    .vf-mobile-menu-item.highlight-orange {
      color: #ff8833;
      font-weight: 700;
      background: rgba(255, 85, 0, 0.06);
    }
    .vf-mobile-menu-item.highlight-cyan {
      color: #00e5ff;
      font-weight: 700;
      background: rgba(0, 229, 255, 0.06);
    }
    .vf-mobile-menu-item.highlight-primary {
      color: #ffffff;
      background: linear-gradient(135deg, rgba(255,85,0,0.3) 0%, rgba(255,40,0,0.3) 100%);
      border: 1px solid rgba(255, 85, 0, 0.4);
    }
    .vf-mobile-menu-divider {
      height: 1px;
      background: rgba(255, 255, 255, 0.08);
      margin: 8px 0;
    }
    .vf-mobile-menu-contact {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 10px;
    }
    .vf-mobile-contact-btn {
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 10px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      text-decoration: none;
      text-align: center;
    }
    .vf-mobile-contact-btn.phone {
      background: #ff5500;
      color: #ffffff;
    }
    .vf-mobile-contact-btn.zalo {
      background: #0068ff;
      color: #ffffff;
    }
    .btn-header-booking .btn-text-short {
      display: none;
    }
    .mobile-toggle {
      display: none;
    }
    .vf-topbar {
      background: linear-gradient(90deg, #0b0f19 0%, #151f33 50%, #0b0f19 100%);
      border-bottom: 1px solid rgba(255, 85, 0, 0.3);
      padding: 8px 0;
      font-size: 13px;
      color: #94a3b8;
    }
    .vf-topbar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .vf-topbar-promo {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #fbbf24;
      font-weight: 600;
    }

    /* Navbar Extra Navigation */
    .vf-nav-link-active {
      color: var(--primary) !important;
      font-weight: 700 !important;
    }

    /* HERO SECTION */
    .vf-hero {
      position: relative;
      padding: 70px 0 90px;
      background: radial-gradient(circle at 70% 30%, rgba(0, 102, 255, 0.15) 0%, transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(255, 85, 0, 0.12) 0%, transparent 50%),
                  #0b0f19;
      overflow: hidden;
      border-bottom: 1px solid var(--vf-card-border);
    }
    .vf-hero::before {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
    }
    .vf-hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .vf-hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 85, 0, 0.12);
      border: 1px solid rgba(255, 85, 0, 0.4);
      color: #ff7733;
      padding: 6px 16px;
      border-radius: 50px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 18px;
    }
    .vf-hero-badge span.pulse-dot {
      width: 8px;
      height: 8px;
      background: #ff5500;
      border-radius: 50%;
      box-shadow: 0 0 10px #ff5500;
      animation: pulseAnim 1.8s infinite;
    }
    @keyframes pulseAnim {
      0% { transform: scale(0.9); opacity: 0.7; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.7; }
    }
    .vf-hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.2;
      color: #ffffff;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .vf-hero-title span.grad-orange {
      background: linear-gradient(135deg, #ff8833 0%, #ff5500 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .vf-hero-title span.grad-cyan {
      background: linear-gradient(135deg, #00e5ff 0%, #0088ff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .vf-hero-desc {
      font-size: 16px;
      line-height: 1.65;
      color: #cbd5e1;
      margin-bottom: 28px;
    }
    .vf-hero-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 32px;
    }
    .vf-hero-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      background: rgba(19, 27, 44, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 10px 14px;
      border-radius: 8px;
      font-size: 13.5px;
      font-weight: 500;
      color: #e2e8f0;
      backdrop-filter: blur(8px);
    }
    .vf-hero-feature-item svg {
      width: 20px;
      height: 20px;
      color: var(--primary);
      flex-shrink: 0;
    }
    .vf-hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .btn-vf-primary {
      background: linear-gradient(135deg, #ff6600 0%, #ff4400 100%);
      color: #ffffff;
      font-weight: 700;
      padding: 14px 28px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border: none;
      box-shadow: 0 8px 25px rgba(255, 85, 0, 0.4);
      cursor: pointer;
      transition: all 0.25s ease;
      font-size: 15px;
    }
    .btn-vf-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 85, 0, 0.55);
      color: #ffffff;
    }
    .btn-vf-cyan {
      background: linear-gradient(135deg, #00c0f0 0%, #0066ee 100%);
      color: #ffffff;
      font-weight: 700;
      padding: 14px 28px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border: none;
      box-shadow: 0 8px 25px rgba(0, 102, 238, 0.4);
      cursor: pointer;
      transition: all 0.25s ease;
      font-size: 15px;
    }
    .btn-vf-cyan:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(0, 102, 238, 0.6);
      color: #ffffff;
    }
    .btn-vf-zalo {
      background: rgba(0, 104, 255, 0.15);
      border: 1px solid rgba(0, 104, 255, 0.4);
      color: #60a5fa;
      font-weight: 700;
      padding: 14px 24px;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      transition: all 0.25s ease;
      font-size: 15px;
    }
    .btn-vf-zalo:hover {
      background: rgba(0, 104, 255, 0.3);
      color: #ffffff;
      border-color: #0068ff;
    }

    /* Hero Right Visual Showcase */
    .vf-hero-visual {
      position: relative;
    }
    .vf-hero-card {
      position: relative;
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    }
    .vf-hero-img-wrap {
      position: relative;
      height: 380px;
      overflow: hidden;
    }
    .vf-hero-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }
    .vf-hero-card:hover .vf-hero-img-wrap img {
      transform: scale(1.04);
    }
    .vf-hero-badge-float {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid var(--primary);
      color: #ffffff;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .vf-hero-price-badge {
      position: absolute;
      bottom: 16px;
      right: 16px;
      background: linear-gradient(135deg, #ff5500 0%, #e04400 100%);
      color: #ffffff;
      padding: 8px 18px;
      border-radius: 12px;
      font-size: 13px;
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.5);
      text-align: right;
    }
    .vf-hero-price-badge small {
      display: block;
      font-size: 11px;
      opacity: 0.9;
    }
    .vf-hero-price-badge strong {
      font-size: 20px;
      font-weight: 900;
    }
    .vf-hero-card-body {
      padding: 20px;
    }
    .vf-hero-card-body h3 {
      font-size: 20px;
      color: #ffffff;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .vf-hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 10px;
    }
    .vf-hero-tag {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 11.5px;
      color: #94a3b8;
    }

    /* Counter Bar */
    .vf-counter-bar {
      background: #111726;
      border-top: 1px solid var(--vf-card-border);
      border-bottom: 1px solid var(--vf-card-border);
      padding: 30px 0;
    }
    .vf-counter-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .vf-counter-item {
      padding: 10px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
    }
    .vf-counter-item:last-child {
      border-right: none;
    }
    .vf-counter-num {
      font-size: 36px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 6px;
    }
    .vf-counter-lbl {
      font-size: 13px;
      color: #94a3b8;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    /* SECTION GENERAL STYLING */
    .vf-section {
      padding: 85px 0;
      position: relative;
    }
    .vf-section-alt {
      background: #0d1322;
      border-top: 1px solid var(--vf-card-border);
      border-bottom: 1px solid var(--vf-card-border);
    }
    .vf-sec-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 55px;
    }
    .vf-sec-eyebrow {
      display: inline-block;
      font-size: 12.5px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .vf-sec-title {
      font-size: 34px;
      font-weight: 900;
      color: #ffffff;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .vf-sec-desc {
      font-size: 15.5px;
      color: #94a3b8;
      line-height: 1.65;
    }

    /* VINFAST TUNING SERVICES GRID */
    .vf-tuning-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .vf-tuning-card {
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 14px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
      position: relative;
    }
    .vf-tuning-card:hover {
      transform: translateY(-6px);
      border-color: rgba(255, 85, 0, 0.45);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    }
    .vf-tuning-img-box {
      position: relative;
      height: 220px;
      overflow: hidden;
    }
    .vf-tuning-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .vf-tuning-card:hover .vf-tuning-img-box img {
      transform: scale(1.08);
    }
    .vf-tuning-cat {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(11, 15, 25, 0.85);
      color: #ff8833;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      padding: 4px 10px;
      border-radius: 4px;
      letter-spacing: 0.5px;
      border: 1px solid rgba(255, 85, 0, 0.3);
    }
    .vf-tuning-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .vf-tuning-body h3 {
      font-size: 19px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
      line-height: 1.35;
    }
    .vf-tuning-body p {
      font-size: 14px;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 18px;
      flex: 1;
    }
    .vf-tuning-highlights {
      list-style: none;
      padding: 0;
      margin: 0 0 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 14px;
    }
    .vf-tuning-highlights li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-size: 13px;
      color: #cbd5e1;
      margin-bottom: 8px;
    }
    .vf-tuning-highlights li svg {
      width: 15px;
      height: 15px;
      color: var(--primary);
      flex-shrink: 0;
      margin-top: 2px;
    }
    .vf-tuning-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .vf-tuning-warranty {
      font-size: 12px;
      color: #22c55e;
      display: flex;
      align-items: center;
      gap: 4px;
      font-weight: 600;
    }
    .vf-tuning-btn {
      background: transparent;
      border: 1px solid rgba(255, 85, 0, 0.4);
      color: #ff8833;
      font-size: 12.5px;
      font-weight: 700;
      padding: 7px 14px;
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .vf-tuning-btn:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* VINFAST MODEL SELECTOR TABS */
    .vf-tabs-nav {
      display: flex;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .vf-tab-btn {
      background: #151e30;
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: #94a3b8;
      font-size: 14.5px;
      font-weight: 700;
      padding: 12px 24px;
      border-radius: 30px;
      cursor: pointer;
      transition: all 0.25s ease;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .vf-tab-btn:hover {
      color: #ffffff;
      border-color: rgba(255, 85, 0, 0.4);
    }
    .vf-tab-btn.active {
      background: linear-gradient(135deg, #ff5500 0%, #d44400 100%);
      color: #ffffff;
      border-color: #ff5500;
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.35);
    }
    .vf-tab-panel {
      display: none;
      animation: fadeIn 0.4s ease;
    }
    .vf-tab-panel.active {
      display: block;
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .vf-model-showcase {
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 16px;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 30px;
      align-items: center;
      padding: 30px;
    }
    .vf-model-img-col img {
      width: 100%;
      height: 360px;
      object-fit: cover;
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .vf-model-info-col h3 {
      font-size: 26px;
      font-weight: 900;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .vf-model-info-col p {
      font-size: 15px;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .vf-pkg-box {
      background: rgba(11, 15, 25, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      padding: 16px;
      margin-bottom: 20px;
    }
    .vf-pkg-title {
      font-size: 14px;
      font-weight: 700;
      color: #ff8833;
      text-transform: uppercase;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .vf-pkg-items {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .vf-pkg-item {
      font-size: 13px;
      color: #cbd5e1;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .vf-pkg-item svg {
      width: 14px;
      height: 14px;
      color: #22c55e;
      flex-shrink: 0;
    }

    /* VF3 CAR RENTAL SECTION */
    .vf-rental-hero-card {
      background: radial-gradient(circle at 80% 20%, rgba(0, 229, 255, 0.15) 0%, transparent 60%),
                  radial-gradient(circle at 10% 90%, rgba(255, 85, 0, 0.12) 0%, transparent 50%),
                  #131c2f;
      border: 1px solid rgba(0, 229, 255, 0.3);
      border-radius: 20px;
      padding: 40px;
      margin-bottom: 50px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      position: relative;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    }
    .vf-rental-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin: 24px 0;
    }
    .vf-rental-perk {
      background: rgba(11, 15, 25, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 8px;
      padding: 12px;
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .vf-rental-perk-icon {
      width: 32px;
      height: 32px;
      border-radius: 6px;
      background: rgba(0, 229, 255, 0.12);
      color: #00e5ff;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .vf-rental-perk-text strong {
      display: block;
      font-size: 13.5px;
      color: #ffffff;
      margin-bottom: 2px;
    }
    .vf-rental-perk-text span {
      font-size: 12px;
      color: #94a3b8;
    }
    .vf-rental-badge {
      display: inline-block;
      background: rgba(0, 229, 255, 0.15);
      color: #00e5ff;
      border: 1px solid rgba(0, 229, 255, 0.4);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .vf-rental-hero-heading {
      font-size: 28px;
      font-weight: 900;
      color: #ffffff;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .vf-rental-hero-desc {
      font-size: 14.5px;
      color: #cbd5e1;
      line-height: 1.6;
    }
    .vf-rental-hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 20px;
    }
    .vf-rental-hero-img-col {
      width: 100%;
    }
    .vf-rental-hero-img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      border-radius: 14px;
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
      border: 1px solid rgba(0, 229, 255, 0.3);
      display: block;
    }

    /* VF3 RENTAL PROMO BANNERS */
    .vf-rental-banner-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 26px;
      margin-bottom: 55px;
    }
    .vf-rental-banner-card {
      background: radial-gradient(circle at 85% 15%, rgba(0, 229, 255, 0.1) 0%, transparent 60%), #111827;
      border: 1px solid rgba(0, 229, 255, 0.28);
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55);
      transition: all 0.35s ease;
    }
    .vf-rental-banner-card:hover {
      transform: translateY(-5px);
      border-color: #00e5ff;
      box-shadow: 0 20px 45px rgba(0, 229, 255, 0.25);
    }
    .vf-rental-banner-img-wrap {
      position: relative;
      width: 100%;
      height: auto;
      aspect-ratio: 16 / 9.8;
      overflow: hidden;
      cursor: pointer;
      background: #0b0f19;
    }
    .vf-rental-banner-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      background: #0b0f19;
      transition: transform 0.5s ease;
      display: block;
    }
    .vf-rental-banner-card:hover .vf-rental-banner-img-wrap img {
      transform: scale(1.04);
    }
    .vf-rental-banner-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(8px);
      color: #00e5ff;
      border: 1px solid rgba(0, 229, 255, 0.4);
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 11.5px;
      font-weight: 800;
      letter-spacing: 0.5px;
      z-index: 2;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .vf-rental-banner-zoom-hint {
      position: absolute;
      bottom: 12px;
      right: 12px;
      background: rgba(11, 15, 25, 0.8);
      backdrop-filter: blur(6px);
      color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 11px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      z-index: 2;
      transition: all 0.2s ease;
    }
    .vf-rental-banner-card:hover .vf-rental-banner-zoom-hint {
      background: #00e5ff;
      color: #0b0f19;
      border-color: #00e5ff;
    }
    .vf-rental-banner-body {
      padding: 22px 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .vf-rental-banner-body h3 {
      font-size: 19px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 8px;
      line-height: 1.35;
    }
    .vf-rental-banner-body p {
      font-size: 13.5px;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .vf-rental-banner-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 18px;
    }
    .vf-rental-banner-tag {
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.2);
      color: #67e8f9;
      font-size: 11.5px;
      padding: 4px 10px;
      border-radius: 6px;
      font-weight: 600;
    }
    .vf-rental-banner-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    .vf-rental-banner-actions .btn-sm {
      padding: 9px 15px;
      font-size: 12.5px;
      font-weight: 700;
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    .btn-vf-outline-phone {
      background: rgba(34, 197, 94, 0.12);
      border: 1px solid rgba(34, 197, 94, 0.4);
      color: #4ade80;
    }
    .btn-vf-outline-phone:hover {
      background: #22c55e;
      color: #0b0f19;
    }
    .btn-vf-outline-zalo {
      background: rgba(0, 104, 255, 0.12);
      border: 1px solid rgba(0, 104, 255, 0.4);
      color: #60a5fa;
    }
    .btn-vf-outline-zalo:hover {
      background: #0068ff;
      color: #ffffff;
    }

    /* VF3 RENTAL INFOGRAPHIC POSTERS SHOWCASE */
    .vf-rental-posters-section {
      margin: 60px 0;
    }
    .vf-rental-posters-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .vf-poster-card {
      background: radial-gradient(circle at 10% 90%, rgba(255, 85, 0, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 90% 10%, rgba(0, 229, 255, 0.08) 0%, transparent 60%),
                  #111827;
      border: 1px solid rgba(0, 229, 255, 0.25);
      border-radius: 20px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
      transition: all 0.35s ease;
    }
    .vf-poster-card:hover {
      transform: translateY(-5px);
      border-color: #00e5ff;
      box-shadow: 0 22px 55px rgba(0, 229, 255, 0.25);
    }
    .vf-poster-img-wrap {
      position: relative;
      cursor: pointer;
      background: #090d16;
      width: 100%;
      height: auto;
      overflow: hidden;
      display: block;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .vf-poster-img-wrap img {
      width: 100%;
      height: auto;
      object-fit: contain;
      transition: transform 0.4s ease;
      display: block;
    }
    .vf-poster-card:hover .vf-poster-img-wrap img {
      transform: scale(1.02);
    }
    .vf-poster-overlay-btn {
      position: absolute;
      bottom: 14px;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(0, 229, 255, 0.5);
      color: #00e5ff;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 11.5px;
      font-weight: 700;
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.2s ease;
      z-index: 2;
    }
    .vf-poster-card:hover .vf-poster-overlay-btn {
      background: #00e5ff;
      color: #0b0f19;
    }
    .vf-poster-body {
      padding: 28px 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .vf-poster-badge {
      display: inline-block;
      background: rgba(0, 229, 255, 0.12);
      color: #00e5ff;
      border: 1px solid rgba(0, 229, 255, 0.35);
      padding: 4px 12px;
      border-radius: 16px;
      font-size: 11.5px;
      font-weight: 800;
      margin-bottom: 12px;
      align-self: flex-start;
    }
    .vf-poster-title {
      font-size: 20px;
      font-weight: 900;
      color: #ffffff;
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .vf-poster-desc {
      font-size: 13.5px;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .vf-poster-checklist {
      list-style: none;
      padding: 0;
      margin: 0 0 20px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .vf-poster-checklist li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 13px;
      color: #e2e8f0;
      line-height: 1.5;
    }
    .vf-poster-checklist li svg {
      width: 16px;
      height: 16px;
      color: #00e5ff;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .vf-poster-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 22px;
    }
    .vf-poster-chip {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: #cbd5e1;
      font-size: 11px;
      padding: 3px 9px;
      border-radius: 4px;
      font-weight: 500;
    }
    .vf-poster-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    /* RENTAL PRICING CARDS */
    .vf-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
      margin-bottom: 60px;
    }
    .vf-pricing-card {
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 14px;
      padding: 26px 22px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }
    .vf-pricing-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 16px 35px rgba(0, 0, 0, 0.5);
    }
    .vf-pricing-card.featured {
      border-color: #00e5ff;
      box-shadow: 0 0 25px rgba(0, 229, 255, 0.25);
      background: linear-gradient(180deg, #16243d 0%, #111a2c 100%);
    }
    .vf-pricing-popular-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, #00c0f0 0%, #0066ee 100%);
      color: #ffffff;
      font-size: 11px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      padding: 4px 14px;
      border-radius: 20px;
      box-shadow: 0 4px 12px rgba(0, 102, 238, 0.5);
    }
    .vf-pricing-tier {
      font-size: 16px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .vf-pricing-desc {
      font-size: 12.5px;
      color: #94a3b8;
      min-height: 36px;
      margin-bottom: 16px;
    }
    .vf-pricing-price {
      margin-bottom: 20px;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .vf-pricing-price strong {
      font-size: 28px;
      font-weight: 900;
      color: #00e5ff;
    }
    .vf-pricing-card.featured .vf-pricing-price strong {
      color: #00e5ff;
    }
    .vf-pricing-price span {
      font-size: 13px;
      color: #94a3b8;
    }
    .vf-pricing-list {
      list-style: none;
      padding: 0;
      margin: 0 0 24px 0;
      flex: 1;
    }
    .vf-pricing-list li {
      font-size: 13px;
      color: #cbd5e1;
      display: flex;
      align-items: flex-start;
      gap: 8px;
      margin-bottom: 10px;
    }
    .vf-pricing-list li svg {
      width: 15px;
      height: 15px;
      color: #22c55e;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .vf-pricing-btn {
      width: 100%;
      padding: 12px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      text-align: center;
      border: 1px solid rgba(0, 229, 255, 0.4);
      background: rgba(0, 229, 255, 0.1);
      color: #00e5ff;
      transition: all 0.2s ease;
    }
    .vf-pricing-btn:hover {
      background: #00e5ff;
      color: #0b0f19;
      box-shadow: 0 6px 20px rgba(0, 229, 255, 0.4);
    }
    .vf-pricing-card.featured .vf-pricing-btn {
      background: linear-gradient(135deg, #00c0f0 0%, #0066ee 100%);
      color: #ffffff;
      border: none;
    }
    .vf-pricing-card.featured .vf-pricing-btn:hover {
      box-shadow: 0 8px 25px rgba(0, 102, 238, 0.5);
    }

    /* INTERACTIVE RENTAL CALCULATOR WIDGET */
    .vf-calc-box {
      background: #111a2d;
      border: 1px solid rgba(0, 229, 255, 0.35);
      border-radius: 18px;
      padding: 34px;
      max-width: 900px;
      margin: 0 auto;
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    }
    .vf-calc-header {
      text-align: center;
      margin-bottom: 26px;
    }
    .vf-calc-header h3 {
      font-size: 22px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 6px;
    }
    .vf-calc-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
    }
    .vf-calc-field label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: #cbd5e1;
      margin-bottom: 8px;
    }
    .vf-calc-field select, .vf-calc-field input {
      width: 100%;
      background: #0b0f19;
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #ffffff;
      padding: 12px 14px;
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }
    .vf-calc-field select:focus, .vf-calc-field input:focus {
      border-color: #00e5ff;
    }
    .vf-calc-result-box {
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.3);
      border-radius: 12px;
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    .vf-calc-result-info small {
      display: block;
      font-size: 12px;
      color: #94a3b8;
    }
    .vf-calc-result-info strong {
      font-size: 26px;
      font-weight: 900;
      color: #00e5ff;
    }
    .vf-calc-result-info span.discount-tag {
      background: #22c55e;
      color: #ffffff;
      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 8px;
    }

    /* 4-STEP RENTAL PROCESS */
    .vf-process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
      position: relative;
    }
    .vf-process-card {
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 14px;
      padding: 24px 20px;
      position: relative;
      text-align: center;
    }
    .vf-process-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ff5500 0%, #d44400 100%);
      color: #ffffff;
      font-size: 18px;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 6px 15px rgba(255, 85, 0, 0.4);
    }
    .vf-process-card h4 {
      font-size: 16px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .vf-process-card p {
      font-size: 13px;
      color: #94a3b8;
      line-height: 1.5;
    }

    /* GALLERY REAL SHOWCASE */
    .vf-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .vf-gallery-item {
      position: relative;
      border-radius: 12px;
      overflow: hidden;
      height: 250px;
      background: #111827;
      border: 1px solid var(--vf-card-border);
      cursor: zoom-in;
    }
    .vf-gallery-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .vf-gallery-item:hover img {
      transform: scale(1.08);
    }
    .vf-gallery-overlay {
      position: absolute;
      bottom: 0; left: 0; right: 0;
      background: linear-gradient(to top, rgba(11, 15, 25, 0.9) 0%, transparent 100%);
      padding: 20px 16px 12px;
      color: #ffffff;
      opacity: 0.9;
      transition: opacity 0.3s ease;
    }
    .vf-gallery-overlay h4 {
      font-size: 14.5px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .vf-gallery-overlay span {
      font-size: 12px;
      color: #ff8833;
    }

    /* BOOKING FORM SECTION (DUAL TABS) */
    .vf-form-container {
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 20px;
      max-width: 860px;
      margin: 0 auto;
      overflow: hidden;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    }
    .vf-form-tabs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      border-bottom: 1px solid var(--vf-card-border);
    }
    .vf-form-tab-btn {
      padding: 18px 20px;
      text-align: center;
      background: #0f1626;
      color: #94a3b8;
      font-size: 15px;
      font-weight: 800;
      cursor: pointer;
      border: none;
      transition: all 0.25s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .vf-form-tab-btn.active {
      background: var(--vf-card-bg);
      color: var(--primary);
      border-bottom: 3px solid var(--primary);
    }
    .vf-form-tab-btn.tab-rental.active {
      color: #00e5ff;
      border-bottom-color: #00e5ff;
    }
    .vf-form-body {
      padding: 35px 40px;
    }
    .vf-form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }
    .vf-form-group {
      margin-bottom: 18px;
    }
    .vf-form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: #cbd5e1;
      margin-bottom: 8px;
    }
    .vf-form-group input, .vf-form-group select, .vf-form-group textarea {
      width: 100%;
      background: #0b0f19;
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #ffffff;
      padding: 12px 14px;
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }
    .vf-form-group input:focus, .vf-form-group select:focus, .vf-form-group textarea:focus {
      border-color: var(--primary);
    }
    .tab-content-rental .vf-form-group input:focus, 
    .tab-content-rental .vf-form-group select:focus, 
    .tab-content-rental .vf-form-group textarea:focus {
      border-color: #00e5ff;
    }
    .vf-form-submit-btn {
      width: 100%;
      padding: 15px;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 800;
      cursor: pointer;
      border: none;
      color: #ffffff;
      transition: all 0.25s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }
    .submit-tuning {
      background: linear-gradient(135deg, #ff6600 0%, #ff4400 100%);
      box-shadow: 0 8px 25px rgba(255, 85, 0, 0.4);
    }
    .submit-rental {
      background: linear-gradient(135deg, #00c0f0 0%, #0066ee 100%);
      box-shadow: 0 8px 25px rgba(0, 102, 238, 0.4);
    }
    .vf-form-submit-btn:hover {
      transform: translateY(-2px);
      filter: brightness(1.1);
    }

    /* FAQ ACCORDION */
    .vf-faq-grid {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .vf-faq-item {
      background: var(--vf-card-bg);
      border: 1px solid var(--vf-card-border);
      border-radius: 10px;
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .vf-faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: #ffffff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .vf-faq-icon {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      color: var(--primary);
      flex-shrink: 0;
    }
    .vf-faq-item.active .vf-faq-icon {
      transform: rotate(180deg);
    }
    .vf-faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      color: #94a3b8;
      font-size: 14.5px;
      line-height: 1.6;
    }
    .vf-faq-item.active .vf-faq-answer {
      padding: 0 24px 20px;
      max-height: 240px;
    }

    /* FOOTER & BRANDING LINK BACK */
    .vf-footer-brand-box {
      background: #070a12;
      border-top: 1px solid var(--vf-card-border);
      padding: 50px 0 25px;
    }
    .vf-footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 35px;
      margin-bottom: 40px;
    }
    .vf-footer-col h4 {
      font-size: 15px;
      font-weight: 800;
      color: #ffffff;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }
    .vf-footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .vf-footer-col ul li {
      margin-bottom: 10px;
      font-size: 13.5px;
      color: #94a3b8;
    }
    .vf-footer-col ul li a:hover {
      color: var(--primary);
    }

    /* MODAL LIGHTBOX */
    .vf-modal-overlay {
      display: none;
      position: fixed;
      top: 0; left: 0; width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.9);
      z-index: 99999;
      justify-content: center;
      align-items: center;
      padding: 20px;
    }
    .vf-modal-overlay.active {
      display: flex;
    }
    .vf-modal-img {
      max-width: 90vw;
      max-height: 85vh;
      border-radius: 8px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    }
    .vf-modal-close {
      position: absolute;
      top: 20px;
      right: 25px;
      color: #ffffff;
      font-size: 36px;
      cursor: pointer;
      font-weight: 300;
    }

    /* RESPONSIVE QUERIES */
    @media (max-width: 1024px) {
      .vf-hero-grid { grid-template-columns: 1fr; }
      .vf-tuning-grid { grid-template-columns: repeat(2, 1fr); }
      .vf-pricing-grid { grid-template-columns: repeat(2, 1fr); }
      .vf-process-grid { grid-template-columns: repeat(2, 1fr); }
      .vf-model-showcase { grid-template-columns: 1fr; }
      .vf-rental-hero-card { grid-template-columns: 1fr; }
      .vf-rental-banner-grid { grid-template-columns: 1fr; }
      .vf-rental-posters-grid { grid-template-columns: 1fr; }
      .vf-footer-grid { grid-template-columns: 1fr 1fr; }
      .nav-links-desktop { display: none !important; }
    }
    @media (max-width: 768px) {
      .vf-topbar {
        padding: 6px 0;
        font-size: 12px;
      }
      .vf-topbar .container {
        justify-content: center;
        text-align: center;
        flex-direction: column;
        gap: 4px;
      }
      .vf-topbar-address {
        display: none !important;
      }
      .vf-topbar-right {
        gap: 12px;
      }

      .logo img, .logo-img {
        height: 38px;
        max-width: 150px;
      }
      .hotline-btn .hotline-text {
        display: none !important;
      }
      .hotline-btn {
        padding: 0 !important;
      }
      .hotline-icon {
        width: 38px;
        height: 38px;
      }
      .header-actions {
        gap: 8px !important;
      }
      .mobile-toggle {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: 8px;
        color: #ffffff;
        cursor: pointer;
        padding: 0;
        transition: background 0.2s;
      }
      .mobile-toggle:hover, .mobile-toggle:active {
        background: rgba(255, 85, 0, 0.2);
        border-color: var(--primary);
      }
      .btn-header-booking {
        padding: 8px 12px !important;
        font-size: 12.5px !important;
      }
      .btn-header-booking .btn-text-full {
        display: none;
      }
      .btn-header-booking .btn-text-short {
        display: inline;
      }

      .vf-hero {
        padding: 40px 0 50px;
      }
      .vf-hero-badge {
        font-size: 11.5px;
        padding: 5px 12px;
        white-space: normal;
        text-align: center;
        max-width: 100%;
        line-height: 1.4;
      }
      .vf-hero-title {
        font-size: 28px;
        line-height: 1.25;
      }
      .vf-hero-desc {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 20px;
      }
      .vf-hero-card .vf-hero-img-wrap {
        height: 250px;
      }

      .vf-counter-bar {
        padding: 22px 0;
      }
      .vf-counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
      }
      .vf-counter-item {
        border-right: none;
        padding: 8px;
      }
      .vf-counter-num {
        font-size: 28px;
      }

      .vf-section {
        padding: 50px 0;
      }
      .vf-sec-header {
        margin-bottom: 32px;
      }
      .vf-sec-title {
        font-size: 26px;
      }
      .vf-sec-desc {
        font-size: 14px;
      }

      .vf-tuning-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .vf-pricing-grid {
        grid-template-columns: 1fr;
        gap: 18px;
      }
      .vf-pricing-card {
        padding: 22px 18px;
      }
      .vf-hero-features {
        grid-template-columns: 1fr;
      }
      .vf-form-row {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-bottom: 14px;
      }
      .vf-calc-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }
      .vf-calc-box {
        padding: 22px 18px;
      }
      .vf-process-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .vf-gallery-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .vf-gallery-item {
        height: 210px;
      }
      .vf-footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .vf-rental-hero-card {
        padding: 24px 18px;
        margin-bottom: 35px;
      }
      .vf-rental-hero-heading {
        font-size: 24px;
      }
      .vf-rental-hero-img {
        height: 250px;
        margin-top: 15px;
      }
      .vf-rental-hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 10px;
      }
      .vf-rental-hero-actions .btn-vf-cyan,
      .vf-rental-hero-actions .btn-vf-primary {
        width: 100%;
        justify-content: center;
        text-align: center;
        box-sizing: border-box;
      }
      .vf-poster-body { padding: 22px 18px; }
      .vf-rental-banner-body { padding: 18px 16px; }
      .vf-form-body {
        padding: 24px 16px;
      }
      .vf-model-showcase {
        padding: 20px 16px;
        border-radius: 14px;
      }
      .vf-model-img-col img {
        height: 230px;
      }
    }

    @media (max-width: 640px) {
      .vf-hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 10px;
      }
      .btn-vf-primary,
      .btn-vf-cyan,
      .btn-vf-zalo {
        width: 100%;
        justify-content: center;
        text-align: center;
        box-sizing: border-box;
        font-size: 13.5px;
        padding: 12px 16px;
      }
      .vf-rental-perks {
        grid-template-columns: 1fr;
        gap: 10px;
        margin: 18px 0;
      }
      .vf-calc-result-box {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 14px;
        padding: 16px;
      }
      .vf-calc-result-box button,
      .vf-calc-result-box .btn,
      .vf-calc-result-box .btn-vf-cyan {
        width: 100%;
        justify-content: center;
        box-sizing: border-box;
      }
      .vf-form-tabs {
        grid-template-columns: 1fr;
      }
      .vf-form-tab-btn {
        padding: 13px 14px;
        font-size: 13.5px;
        border-bottom: 1px solid var(--vf-card-border);
      }
      .vf-form-tab-btn.active {
        border-bottom: 3px solid var(--primary);
      }
      .vf-form-tab-btn.tab-rental.active {
        border-bottom-color: #00e5ff;
      }
    }

    @media (max-width: 480px) {
      .logo img, .logo-img {
        height: 33px;
        max-width: 125px;
      }
      .header-actions {
        gap: 6px !important;
      }
      .hotline-icon, .mobile-toggle {
        width: 34px !important;
        height: 34px !important;
      }
      .btn-header-booking {
        padding: 6px 9px !important;
        font-size: 11.5px !important;
      }

      .vf-hero-title {
        font-size: 22px;
        line-height: 1.25;
        word-break: break-word;
      }
      .vf-hero-desc {
        font-size: 13px;
        line-height: 1.5;
      }
      .vf-hero-card .vf-hero-img-wrap {
        height: 200px;
      }
      .vf-hero-badge-float {
        top: 10px;
        left: 10px;
        font-size: 10.5px;
        padding: 4px 10px;
      }
      .vf-hero-price-badge {
        bottom: 10px;
        right: 10px;
        padding: 6px 12px;
        font-size: 11.5px;
      }
      .vf-hero-price-badge strong {
        font-size: 15px;
      }

      .vf-section {
        padding: 38px 0;
      }
      .vf-sec-title {
        font-size: 21px;
        line-height: 1.3;
      }
      .vf-sec-desc {
        font-size: 13px;
      }

      .vf-tabs-nav {
        gap: 6px;
        margin-bottom: 18px;
      }
      .vf-tab-btn {
        padding: 7px 12px;
        font-size: 12px;
      }
      .vf-model-showcase {
        padding: 16px 12px;
      }
      .vf-model-img-col img {
        height: 180px;
      }
      .vf-model-info-col h3 {
        font-size: 19px;
      }
      .vf-model-info-col p {
        font-size: 13px;
      }
      .vf-pkg-box {
        padding: 12px;
      }

      .vf-rental-hero-card {
        padding: 18px 14px;
        border-radius: 14px;
      }
      .vf-rental-hero-heading {
        font-size: 20px;
        line-height: 1.3;
      }
      .vf-rental-hero-img {
        height: 210px;
      }
      .vf-poster-title { font-size: 18px; }
      .vf-rental-banner-actions .btn-sm,
      .vf-poster-actions .btn-sm {
        width: 100%;
        justify-content: center;
      }
      .vf-pricing-card {
        padding: 18px 14px;
      }
      .vf-pricing-price strong {
        font-size: 23px;
      }

      .vf-calc-box {
        padding: 18px 12px;
      }
      .vf-calc-header h3 {
        font-size: 18px;
      }

      .vf-form-body {
        padding: 18px 12px;
      }
      .vf-form-group label {
        font-size: 12.5px;
      }
      .vf-form-group input, .vf-form-group select, .vf-form-group textarea {
        padding: 10px 12px;
        font-size: 13.5px;
      }
      .vf-form-submit-btn {
        padding: 12px;
        font-size: 14px;
      }

      .vf-faq-question {
        padding: 13px 15px;
        font-size: 14px;
      }
      .vf-faq-answer {
        padding: 0 15px;
      }
      .vf-faq-item.active .vf-faq-answer {
        padding: 0 15px 14px;
        font-size: 13px;
      }

      .vf-gallery-item {
        height: 180px;
      }
    }

    @media (max-width: 360px) {
      .logo img, .logo-img {
        height: 30px;
        max-width: 110px;
      }
      .btn-header-booking {
        padding: 5px 7px !important;
        font-size: 10.5px !important;
      }
      .vf-hero-title {
        font-size: 19px;
      }
      .vf-sec-title {
        font-size: 19px;
      }
    }

/* ===== FORM THUÊ XE ĐƠN GIẢN ===== */
.vf-stepper { display: flex; align-items: stretch; gap: 0; }
.vf-stepper button {
  width: 48px; border: 1px solid var(--vf-card-border, #1e293b); background: rgba(0,229,255,0.08);
  color: #00e5ff; font-size: 22px; font-weight: 800; cursor: pointer; transition: background .2s;
}
.vf-stepper button:first-child { border-radius: 8px 0 0 8px; }
.vf-stepper button:last-child { border-radius: 0 8px 8px 0; }
.vf-stepper button:hover { background: rgba(0,229,255,0.2); }
.vf-stepper input { flex: 1; min-width: 0; text-align: center; font-weight: 800; border-radius: 0 !important; }
.vf-estimate-bar {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 12px; margin: 4px 0 18px;
  padding: 14px 18px; border-radius: 12px; border: 1px dashed #00e5ff;
  background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(255,85,0,0.08));
}
.vf-estimate-bar span { color: #94a3b8; font-size: 13.5px; }
.vf-estimate-bar strong { color: #00e5ff; font-size: 26px; font-weight: 900; }
.vf-estimate-bar small { flex-basis: 100%; color: #94a3b8; font-size: 12px; }
.vf-form-more { margin: 0 0 18px; border: 1px solid var(--vf-card-border, #1e293b); border-radius: 10px; padding: 0 16px; }
.vf-form-more summary { cursor: pointer; padding: 13px 0; color: #00e5ff; font-weight: 700; font-size: 13.5px; list-style: none; }
.vf-form-more summary::-webkit-details-marker { display: none; }
.vf-form-more[open] summary { border-bottom: 1px solid var(--vf-card-border, #1e293b); margin-bottom: 14px; }

/* ===== HIỆU ỨNG CARD GIÁ ===== */
.vf-pricing-card { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.vf-pricing-card:hover { transform: translateY(-6px); border-color: #00e5ff; box-shadow: 0 14px 34px rgba(0,229,255,0.18); }
.vf-pricing-card.featured { box-shadow: 0 0 0 1px #ff5500, 0 12px 40px rgba(255,85,0,0.22); }
html { scroll-behavior: smooth; }
@media (max-width: 1024px) and (min-width: 769px) { .vf-pricing-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; } }