@charset "UTF-8";

/* === FV === */
.fv {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: #f7f7f7;
  display: flex;
  align-items: center;
}

/* === 背景 === */
.fv__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.fv__blob {
  position: absolute;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  filter: blur(60px);
}
.fv__blob--1 {
  width: 40vw; height: 40vw;
  top: -8%; right: 5%;
  background: linear-gradient(135deg, rgba(40,195,213,0.22), rgba(40,195,213,0.08));
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
}
.fv__blob--2 {
  width: 35vw; height: 35vw;
  bottom: 5%; left: -3%;
  background: linear-gradient(135deg, rgba(40,195,213,0.12), rgba(20,160,180,0.06));
  border-radius: 40% 60% 70% 30% / 40% 70% 30% 60%;
}
.fv__blob--3 {
  width: 20vw; height: 20vw;
  top: 40%; left: 35%;
  background: radial-gradient(circle, rgba(40,195,213,0.06) 0%, transparent 70%);
  filter: blur(40px);
}
.fv__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  background-size: 180px;
  pointer-events: none;
}
.fv__stripes {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 80px,
    rgba(40,195,213,0.02) 80px,
    rgba(40,195,213,0.02) 81px
  );
}

/* === 流れるアウトライン文字 === */
.fv__outline-wrap {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
}
.fv__outline-row {
  display: flex;
  white-space: nowrap;
  will-change: transform;
}
.fv__outline-row--left {
  animation: outlineScrollLeft 30s linear infinite;
}
.fv__outline-row--right {
  animation: outlineScrollRight 35s linear infinite;
}
.fv__outline-row--left-slow {
  animation: outlineScrollLeft 40s linear infinite;
}
.fv__outline-row--right-slow {
  animation: outlineScrollRight 32s linear infinite;
}
.fv__outline-text {
  font-family: "Barlow Semi Condensed", sans-serif;
  font-size: 160px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -1px;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(0,0,0,0.08);
  padding: 0 40px;
  flex-shrink: 0;
}
.fv__outline-text--grad {
  -webkit-text-stroke: 0;
  background: linear-gradient(90deg, #28c3d5, #1a9aab, #28c3d5);
  -webkit-background-clip: text;
  background-clip: text;
  opacity: 0.1;
}
.fv__outline-text--accent {
  -webkit-text-stroke: 1.5px rgba(40,195,213,0.15);
}
@keyframes outlineScrollLeft {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes outlineScrollRight {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

/* === コンテンツ（中央配置） === */
.fv__content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 40px;
  text-align: center;
}

.fv__label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  color: #28c3d5;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.2s forwards;
}

.fv__title {
  font-family: "Barlow Semi Condensed", "Noto Sans JP", sans-serif;
  font-size: 120px;
  font-weight: 900;
  color: #1a1a1a;
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: 16px;
}
.fv__title span {
  display: block;
  overflow: hidden;
}
.fv__title span b {
  display: block;
  font-weight: 900;
  opacity: 0;
  transform: translateY(100%);
  animation: revealUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.fv__title span:nth-child(2) b { animation-delay: 0.12s; }

.fv__title-jp {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
  letter-spacing: 2px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}

.fv__desc {
  font-size: 16px;
  font-weight: 400;
  color: #888;
  line-height: 2.2;
  max-width: 560px;
  margin: 0 auto 48px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.7s forwards;
}

/* === CTAボタン === */
.fv__cta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
  background: linear-gradient(135deg, #28c3d5 0%, #1a9aab 50%, #28c3d5 100%);
  background-size: 200% 200%;
  animation: fadeUp 0.8s ease 0.9s forwards, gradientShift 4s ease infinite;
  opacity: 0;
  border: none;
  border-radius: 200px;
  padding: 20px 48px;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}
.fv__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(40, 195, 213, 0.3);
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* === アクセントライン === */
.fv__accent-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #28c3d5, #1a9aab, #28c3d5);
  z-index: 20;
}

/* === SCROLL === */
.fv__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%) !important;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0;
  animation: fadeUp 0.8s ease 1.2s forwards;
}
.fv__scroll-mouse {
  width: 28px;
  height: 46px;
  border-radius: 14px;
  border: 2px solid #28c3d5;
  position: relative;
  display: flex;
  justify-content: center;
  box-shadow: 0 0 16px rgba(40,195,213,0.15);
}
.fv__scroll-dot {
  width: 4px;
  height: 10px;
  border-radius: 2px;
  background: #28c3d5;
  margin-top: 7px;
  animation: mouseDot 1.6s ease-in-out infinite;
}
@keyframes mouseDot {
  0%   { opacity: 1; transform: translateY(0); }
  50%  { opacity: 0.2; transform: translateY(14px); }
  100% { opacity: 1; transform: translateY(0); }
}
.fv__scroll-text {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: #28c3d5;
}
.fv__scroll-line {
  width: 80px;
  height: 2px;
  border-radius: 1px;
  background: rgba(40,195,213,0.15);
  position: relative;
  overflow: hidden;
}
.fv__scroll-line::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  border-radius: 1px;
  background: #28c3d5;
  animation: lineSlide 2s ease-in-out infinite;
}
@keyframes lineSlide {
  0%   { left: -100%; }
  50%  { left: 0; }
  100% { left: 100%; }
}

/* === アニメーション === */
@keyframes fadeUp   { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes revealUp { to { opacity: 1; transform: translateY(0); } }

/* === SP === */
@media (max-width: 768px) {
  .fv {
    align-items: flex-start;
  }
  .fv__content {
    width: 100%;
    padding: 120px 24px 0;
    text-align: left;
  }
  .fv__label {
    font-size: 11px;
    letter-spacing: 3px;
    margin-bottom: 20px;
  }
  .fv__title {
    font-size: 60px;
    letter-spacing: -1px;
    margin-bottom: 40px;
  }
  .fv__title-jp {
    font-size: 16px;
    letter-spacing: 1px;
    margin-bottom: 24px;
  }
  .fv__desc {
    font-size: 16px;
    line-height: 2;
    max-width: none;
    margin-top: 80px;
    margin-bottom: 80px;
    color: #000;
  }
  .fv__desc br { display: none; }
  .fv__cta {
    font-size: 14px;
    padding: 16px 36px;
    letter-spacing: 1px;
  }
  .fv__outline-text {
    font-size: 72px;
    padding: 0 20px;
  }
  .fv__outline-wrap {
    justify-content: center;
    gap: 20px;
  }
  /* .fv__scroll { display: none !important; } */
  .fv__blob--1 { width: 60vw; height: 60vw; }
  .fv__blob--2 { width: 50vw; height: 50vw; }
}

/* 小さいスマホ */
@media (max-width: 375px) {
  .fv__content { padding: 100px 20px 0; }
  .fv__title { font-size: 60px; margin-bottom: 10px; }
  .fv__title-jp { font-size: 14px; }
  .fv__desc { font-size: 12px; margin-bottom: 40px; }
  .fv__outline-text { font-size: 56px; }
}