html,
body,
div,
span,
main,
section,
button,
a,
img {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 0;
  min-height: 100%;
  font-family: Arial, "Microsoft Yahei", sans-serif;
  background: #050506;
}

body {
  overflow-x: auto;
}

img {
  display: block;
  border: 0;
  user-select: none;
}

button {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.legacy-page {
  display: none;
  width: 100%;
  height: 100vh;
  min-height: 100%;
}

.is-legacy .legacy-page {
  display: block;
}

.is-legacy,
.is-legacy body {
  height: 100%;
  min-width: 0;
}

.legacy-page .swiper-out,
.legacy-page .swiper-wrapper,
.legacy-page .home_bg,
.legacy-page .home_content {
  height: 100%;
}

.legacy-page .swiper-out {
  position: relative;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}

.is-legacy .local-page,
.is-legacy .download-modal {
  display: none;
}

.local-page {
  display: block;
}

html[data-kv-version="kv5"] {
  --local-title-width: 90.3646vw;
  --local-title-height: 11.9271vw;
  --local-btn-width: 39.2188vw;
  --local-btn-height: 10.7813vw;
}

html[data-kv-version="kv6"] {
  --local-title-width: 88.3333vw;
  --local-title-height: 13.125vw;
  --local-btn-width: 31.875vw;
  --local-btn-height: 10vw;
}

html[data-kv-version="kv7"] {
  --local-title-width: 58.0208vw;
  --local-title-height: 9.2708vw;
  --local-btn-width: 29.375vw;
  --local-btn-height: 9.4271vw;
}

.landing {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 39.5833vw;
  overflow: hidden;
  background: #050506 center center / cover no-repeat;
}

.landing::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.12), transparent 35%, rgba(0, 0, 0, 0.08));
  pointer-events: none;
}

.logo {
  position: absolute;
  z-index: 2;
  top: 1.2vw;
  left: 1.2vw;
  width: 12.1vw;
  height: auto;
  object-fit: contain;
}

.kv-content {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: 2vw;
  width: var(--local-title-width);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.kv-title {
  width: var(--local-title-width);
  height: var(--local-title-height);
  object-fit: contain;
  margin-bottom: 1.0417vw;
}

.download-trigger {
  width: var(--local-btn-width);
  height: var(--local-btn-height);
  animation: localPulse 0.8s infinite alternate;
  transform-origin: center center;
  transition: filter 0.18s ease;
}

.download-trigger:hover {
  filter: brightness(1.05);
}

.download-trigger img {
  width: 100%;
  height: auto;
}

@keyframes localPulse {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.1);
  }
}

.download-modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: none;
}

.download-modal.is-open {
  display: block;
}

.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
}

.modal-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 53.4375vw;
  height: 41.5625vw;
  transform: translate(-50%, -50%);
}

.is-legacy .modal-panel {
  width: 53.4375vw;
  min-width: 38.0208vw;
  transform: translate(-45%, -50%);
}

.modal-bg {
  width: 100%;
  height: 100%;
}

.download_info_content {
  background-image: url("https://file-hwkefu.leniuhw.com/kefu/20260828/vn_fire_image/common/dialog.png?v=2026082801");
}

.info_arrow {
  width: 13.8542vw;
  height: 10.625vw;
}

.is-legacy .modal-bg {
  content: url("https://file-hwkefu.leniuhw.com/kefu/20260828/vn_fire_image/common/dialog.png?v=2026082801");
}

.modal-download {
  position: absolute;
  left: 34.5%;
  top: 44.5%;
  width: 27%;
  height: 30%;
  transition:
    transform 0.18s ease,
    filter 0.18s ease;
}

.modal-download:hover {
  transform: translateY(-0.1042vw);
  filter: brightness(1.08);
}

.modal-info-arrow {
  position: absolute;
  top: 0;
  right: max(-37%, calc((100% - 100vw) / 2 + 0.625vw));
  width: 13.8542vw;
  height: 10.625vw;
  z-index: 2;
}

.download-product-icon {
  position: absolute;
  z-index: 3;
  left: 35.4%;
  top: 42.5%;
  width: 23.7% !important;
  height: 30.5% !important;
  border-radius: 12%;
  object-fit: cover;
}

.local-download-product-icon {
  max-width: none;
}

.modal-download img {
  width: 100%;
  height: auto;
}

.modal-close {
  position: absolute;
  top: 25.4%;
  right: 13.5%;
  width: 1.7708vw;
  height: 1.8229vw;
}

.modal-close img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.legacy-progress {
  position: absolute;
  left: 50%;
  top: 82%;
  width: 34%;
  transform: translateX(-50%);
  display: none;
  overflow: hidden;
  pointer-events: none;
}

.legacy-progress.is-visible {
  display: block;
}

.legacy-progress-bar {
  width: 0;
  height: 0.3125vw;
  border-radius: 52.0313vw;
  background: linear-gradient(90deg, #48d46a, #b7ff6c);
  box-shadow: 0 0 0.5208vw rgba(103, 255, 124, 0.45);
  transition: width 0.16s ease;
}

.legacy-progress.is-loading .legacy-progress-bar {
  position: relative;
  width: 100%;
  background: rgba(255, 255, 255, 0.18);
}

.legacy-progress.is-loading .legacy-progress-bar::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -42%;
  width: 42%;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, #b7ff6c, transparent);
  animation: progressLoop 1.1s linear infinite;
}

.legacy-progress-text {
  margin-top: 0.3125vw;
  color: #0b0f37;
  font-size: 0.7292vw;
  line-height: 1;
  text-align: center;
  font-weight: 700;
}

@keyframes progressLoop {
  0% {
    left: -42%;
  }
  100% {
    left: 100%;
  }
}

@media (max-height: 42.7083vw) {
  .landing {
    min-height: 36.4583vw;
  }

  .kv-content {
    bottom: 2.5vw;
  }

}