/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  overflow: hidden;
  padding: 120px var(--sp-3) var(--sp-6);
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0d3b66 0%, #072544 100%), url(https://okki-shop.oss-accelerate.aliyuncs.com/category/81807/1233/21b331fc14bad146234596859594b0b3/slide8_shape0_35a16010.jpg) center / cover;
    background-blend-mode: multiply;
    z-index: -2;
}


.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("https://okki-shop.oss-accelerate.aliyuncs.com/category/81807/1233/21b331fc14bad146234596859594b0b3/slide8_shape0_35a16010.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.45;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(0, 132, 255, 0.18), transparent 60%),
    linear-gradient(180deg, rgba(7, 37, 68, 0.55) 0%, rgba(7, 37, 68, 0.85) 100%);
  z-index: -1;
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  text-align: left;
}
.hero__tag {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 100px;
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 600;
  margin-bottom: var(--sp-3);
  color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.05);
  text-transform: uppercase;
}
.hero__title {
  font-size: var(--fz-hero);
  line-height: 1.12;
  font-weight: 800;
  margin-bottom: var(--sp-3);
  letter-spacing: -0.03em;
  color: #fff;
}
.hero__title-accent {
  background: linear-gradient(90deg, #00b4d8, #0084ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: var(--sp-2);
  letter-spacing: 0.01em;
}
.hero__desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--sp-5);
  line-height: 1.7;
}
.hero__desc-en {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.55);
}
.hero__cta {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.25s;
  cursor: pointer;
}
.btn--primary {
  background: var(--c-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 132, 255, 0.4);
}
.btn--primary:hover {
  background: #0070d6;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 132, 255, 0.5);
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}
.hero__scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.6);
  z-index: 1;
}
.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, rgba(255,255,255,0.6), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   Responsive - Hero
   ============================================ */
@media (max-width: 768px) {
  .hero { padding-top: 100px; min-height: 90vh; }
  .hero__title { font-size: 2.2rem; }
}