/*
 * AIAIAI FEATURE PAGE
 * すべての主要スタイルを .aiaiai-feature 配下に限定し、既存サイトとの干渉を抑えています。
 */

:root {
  --aiaiai-bg: #090909;
  --aiaiai-panel: #111111;
  --aiaiai-soft: #171717;
  --aiaiai-text: #f4f4f0;
  --aiaiai-muted: #a2a2a0;
  --aiaiai-line: rgba(255, 255, 255, 0.16);
  --aiaiai-accent: #f9d812;
  --aiaiai-red: #d71920;
}

body {
  margin: 0;
  background: var(--aiaiai-bg);
}

.aiaiai-feature,
.aiaiai-feature * {
  box-sizing: border-box;
}

.aiaiai-feature {
  position: relative;
  overflow: hidden;
  color: var(--aiaiai-text);
  background: var(--aiaiai-bg);
  font-family: Arial, "Helvetica Neue", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.aiaiai-feature img {
  display: block;
  max-width: 100%;
}

.aiaiai-feature a {
  color: inherit;
  text-decoration: none;
}

.aiaiai-feature p,
.aiaiai-feature h1,
.aiaiai-feature h2,
.aiaiai-feature h3 {
  margin: 0;
}

.aiaiai-sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.aiaiai-scroll-progress {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--aiaiai-accent);
  pointer-events: none;
}

.aiaiai-otai-strip {
  position: absolute;
  z-index: 12;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 34px;
  padding: 6px clamp(24px, 5vw, 80px);
  color: #111;
  background: var(--aiaiai-accent);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.aiaiai-otai-strip a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.aiaiai-otai-strip a span {
  color: var(--aiaiai-red);
  font-size: 13px;
}

.aiaiai-sitebar {
  position: absolute;
  z-index: 10;
  top: 34px;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 104px;
  padding: 14px clamp(24px, 5vw, 80px);
  border-bottom: 1px solid var(--aiaiai-line);
}

.aiaiai-brand-lockup {
  display: flex;
  align-items: center;
  gap: 18px;
}

.aiaiai-otai-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 74px;
  height: 58px;
  overflow: hidden;
}

.aiaiai-otai-logo img {
  width: 84px;
  max-width: none;
  height: auto;
}

.aiaiai-brand-divider {
  width: 1px;
  height: 38px;
  background: rgba(255, 255, 255, 0.28);
}

.aiaiai-wordmark {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.08em;
}

.aiaiai-wordmark span {
  font-size: 25px;
}

.aiaiai-wordmark small {
  color: var(--aiaiai-muted);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.aiaiai-nav {
  display: flex;
  gap: clamp(18px, 3vw, 44px);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.aiaiai-nav a {
  position: relative;
  padding: 7px 0;
}

.aiaiai-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--aiaiai-accent);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s ease;
}

.aiaiai-nav a:hover::after,
.aiaiai-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.aiaiai-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(360px, 0.97fr);
  min-height: 100svh;
  padding: 190px clamp(24px, 5vw, 80px) 72px;
  isolation: isolate;
}

.aiaiai-otai-intro {
  position: relative;
  display: grid;
  grid-template-columns: minmax(180px, 0.55fr) minmax(360px, 1.25fr) minmax(280px, 0.8fr);
  gap: clamp(34px, 6vw, 88px);
  padding: clamp(65px, 8vw, 115px) clamp(24px, 7vw, 112px);
  border-top: 8px solid var(--aiaiai-accent);
  border-bottom: 1px solid var(--aiaiai-line);
  background: #f0f0ec;
  color: #111;
}

.aiaiai-otai-intro::before {
  position: absolute;
  top: -8px;
  right: 0;
  width: 12%;
  height: 8px;
  background: var(--aiaiai-red);
  content: "";
}

.aiaiai-otai-intro-brand {
  align-self: start;
}

.aiaiai-otai-intro-brand img {
  width: 112px;
  height: auto;
  mix-blend-mode: multiply;
}

.aiaiai-otai-intro-brand p {
  margin-top: 18px !important;
  color: #555;
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: 0.1em;
}

.aiaiai-otai-intro-brand strong {
  color: #111;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.aiaiai-otai-intro-copy .aiaiai-section-number {
  color: #806d00;
}

.aiaiai-otai-intro-copy h2 {
  margin-top: 20px !important;
  font-size: clamp(30px, 3.4vw, 52px);
  line-height: 1.4;
  letter-spacing: -0.045em;
}

.aiaiai-otai-intro-copy > p:last-child {
  max-width: 48em;
  margin-top: 28px !important;
  color: #555;
  font-size: 13px;
}

.aiaiai-otai-points {
  border-top: 1px solid rgba(0, 0, 0, 0.22);
}

.aiaiai-otai-points p {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  padding: 17px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.22);
  color: #333;
  font-size: 11px;
}

.aiaiai-otai-points span {
  color: var(--aiaiai-red);
  font-size: 9px;
  font-weight: 800;
}

.aiaiai-hero-grid {
  position: absolute;
  z-index: -2;
  inset: 0;
  opacity: 0.18;
  background-image: linear-gradient(var(--aiaiai-line) 1px, transparent 1px), linear-gradient(90deg, var(--aiaiai-line) 1px, transparent 1px);
  background-size: 8.333vw 8.333vw;
  mask-image: linear-gradient(to bottom, #000, transparent 82%);
}

.aiaiai-hero::after {
  position: absolute;
  z-index: -1;
  top: 5%;
  right: -12%;
  width: 58vw;
  height: 58vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.09), transparent 66%);
  content: "";
}

.aiaiai-hero-copy {
  z-index: 2;
  align-self: center;
  padding-top: 2vw;
  transform: translateY(-18vh);
}

.aiaiai-kicker,
.aiaiai-section-number,
.aiaiai-guide-en {
  color: var(--aiaiai-accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.aiaiai-display {
  margin-top: 22px !important;
  font-size: clamp(56px, 9.4vw, 150px);
  font-weight: 800;
  line-height: 0.78;
  letter-spacing: -0.085em;
}

.aiaiai-display-line {
  display: block;
}

.aiaiai-display-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.86);
}

.aiaiai-hero-lead {
  margin-top: clamp(30px, 5vh, 60px) !important;
  color: #d0d0cd;
  font-size: clamp(16px, 1.4vw, 21px);
  line-height: 1.9;
}

.aiaiai-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-width: 245px;
  margin-top: 34px;
  padding: 16px 19px;
  border: 1px solid var(--aiaiai-line);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.aiaiai-button:hover,
.aiaiai-button:focus-visible {
  transform: translateY(-3px);
}

.aiaiai-button-accent {
  border-color: var(--aiaiai-accent);
  color: #090909 !important;
  background: var(--aiaiai-accent);
}

.aiaiai-button-accent:hover,
.aiaiai-button-accent:focus-visible {
  border-color: #fff;
  background: #fff;
}

.aiaiai-hero-visual {
  position: relative;
  align-self: center;
  margin-left: -8vw;
  will-change: transform;
}

.aiaiai-hero-visual img {
  position: relative;
  z-index: 2;
  width: min(66vw, 850px);
  filter: drop-shadow(0 35px 60px rgba(0, 0, 0, 0.6));
  transform: rotate(-4deg) scale(1.12);
}

.aiaiai-orbit {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: 72%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.aiaiai-orbit::after {
  position: absolute;
  top: 9%;
  left: 9%;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--aiaiai-accent);
  box-shadow: 0 0 0 7px rgba(215, 255, 63, 0.1);
  content: "";
}

.aiaiai-visual-caption {
  position: absolute;
  z-index: 3;
  right: 0;
  bottom: -24px;
  display: flex;
  gap: 20px;
  color: var(--aiaiai-muted);
  font-size: 9px;
  letter-spacing: 0.2em;
}

.aiaiai-visual-caption span {
  color: var(--aiaiai-text);
}

.aiaiai-scroll-cue {
  position: absolute;
  bottom: 28px;
  left: clamp(24px, 5vw, 80px);
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--aiaiai-muted);
  font-size: 8px;
  letter-spacing: 0.22em;
  writing-mode: vertical-rl;
}

.aiaiai-scroll-cue i {
  display: block;
  width: 1px;
  height: 42px;
  background: linear-gradient(var(--aiaiai-accent) 50%, var(--aiaiai-line) 50%);
  background-size: 100% 200%;
  animation: aiaiai-scroll-line 2s ease-in-out infinite;
}

@keyframes aiaiai-scroll-line {
  0%, 100% { background-position: 0 100%; }
  50% { background-position: 0 0; }
}

.aiaiai-section {
  padding: clamp(90px, 12vw, 190px) clamp(24px, 7vw, 112px);
  border-top: 1px solid var(--aiaiai-line);
}

.aiaiai-section-head {
  display: grid;
  grid-template-columns: minmax(120px, 0.45fr) minmax(320px, 1.15fr) minmax(260px, 0.75fr);
  align-items: end;
  gap: 32px;
  margin-bottom: clamp(55px, 8vw, 110px);
}

.aiaiai-section-head h2 {
  font-size: clamp(38px, 5vw, 76px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.aiaiai-section-head > p:last-child {
  max-width: 37em;
  color: var(--aiaiai-muted);
  font-size: 13px;
}

.aiaiai-about {
  background: #0c0c0c;
}

.aiaiai-about .aiaiai-section-head {
  grid-template-columns: minmax(120px, 0.45fr) 1.9fr;
}

.aiaiai-about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(50px, 10vw, 150px);
  max-width: 1240px;
  margin-left: auto;
}

.aiaiai-about-statement {
  font-size: clamp(28px, 3.3vw, 52px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.04em;
}

.aiaiai-about-copy {
  color: #bebebb;
  font-size: 15px;
}

.aiaiai-about-copy p + p {
  margin-top: 26px;
}

.aiaiai-staff-section {
  border-top: 1px solid var(--aiaiai-line);
  background: #080808;
}

.aiaiai-staff-section .aiaiai-section-head {
  grid-template-columns: minmax(120px, 0.45fr) minmax(360px, 1fr) minmax(220px, 0.7fr);
}

.aiaiai-staff-comment {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1.45fr);
  gap: clamp(32px, 6vw, 90px);
  max-width: 1240px;
  margin: 0 0 0 auto;
  padding: clamp(32px, 5vw, 72px);
  overflow: hidden;
  border: 1px solid var(--aiaiai-line);
  background: #121212;
}

.aiaiai-staff-comment::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--aiaiai-accent);
  content: "";
}

.aiaiai-staff-comment-label {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 48px;
  padding-right: clamp(24px, 4vw, 60px);
  border-right: 1px solid var(--aiaiai-line);
}

.aiaiai-staff-comment-label span,
.aiaiai-staff-comment-kicker {
  color: var(--aiaiai-accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.aiaiai-staff-comment-label strong {
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: -0.03em;
}

.aiaiai-staff-comment-body h3 {
  max-width: 820px;
  margin: 18px 0 clamp(32px, 4vw, 52px);
  font-size: clamp(28px, 3.7vw, 54px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.045em;
}

.aiaiai-staff-comment-text {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px clamp(28px, 4vw, 56px);
  color: #c7c7c4;
  font-size: 14px;
  line-height: 2;
}

.aiaiai-marquee {
  width: calc(100% + 14vw);
  margin: clamp(80px, 11vw, 160px) -7vw -1px;
  overflow: hidden;
  border-top: 1px solid var(--aiaiai-line);
  border-bottom: 1px solid var(--aiaiai-line);
}

.aiaiai-marquee > div {
  display: flex;
  align-items: center;
  width: max-content;
  padding: 20px 0;
  animation: aiaiai-marquee 28s linear infinite;
}

.aiaiai-marquee span {
  padding: 0 36px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.aiaiai-marquee i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--aiaiai-accent);
}

@keyframes aiaiai-marquee {
  to { transform: translateX(-50%); }
}

.aiaiai-product-categories {
  display: grid;
  gap: clamp(90px, 12vw, 170px);
}

.aiaiai-category-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-bottom: clamp(70px, 10vw, 130px);
  border-top: 1px solid var(--aiaiai-line);
  border-left: 1px solid var(--aiaiai-line);
}

.aiaiai-category-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 72px;
  padding: 14px 16px;
  border-right: 1px solid var(--aiaiai-line);
  border-bottom: 1px solid var(--aiaiai-line);
  font-size: 11px;
  font-weight: 700;
  transition: color 0.25s ease, background 0.25s ease;
}

.aiaiai-category-nav a:hover,
.aiaiai-category-nav a:focus-visible {
  color: #090909;
  background: var(--aiaiai-accent);
}

.aiaiai-category-nav small {
  color: #777;
  font-size: 8px;
  letter-spacing: 0.12em;
}

.aiaiai-product-category {
  scroll-margin-top: 24px;
}

.aiaiai-product-category-head {
  display: grid;
  grid-template-columns: minmax(120px, 0.45fr) minmax(320px, 1.25fr) minmax(90px, auto);
  align-items: end;
  gap: 28px;
  padding: 0 0 34px;
  border-top: 1px solid var(--aiaiai-line);
}

.aiaiai-product-category-head > p:first-child {
  align-self: start;
  padding-top: 20px;
  color: var(--aiaiai-muted);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.aiaiai-product-category-head > p:first-child span {
  color: var(--aiaiai-accent);
}

.aiaiai-product-category-head h3 {
  margin-top: 30px !important;
  font-size: clamp(30px, 4vw, 58px);
  line-height: 1.15;
  letter-spacing: -0.045em;
}

.aiaiai-product-category-head div > p {
  max-width: 54em;
  margin-top: 14px !important;
  color: var(--aiaiai-muted);
  font-size: 12px;
}

.aiaiai-product-category-head > span {
  color: #777;
  font-size: 9px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.aiaiai-product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--aiaiai-line);
  border: 1px solid var(--aiaiai-line);
}

.aiaiai-product-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: var(--aiaiai-panel);
  transition: background 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.aiaiai-product-card:hover {
  z-index: 2;
  background: #151515;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  transform: translateY(-7px);
}

.aiaiai-product-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e8e8e4;
}

.aiaiai-product-image::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 54%, rgba(0, 0, 0, 0.12));
  content: "";
  pointer-events: none;
}

.aiaiai-product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.2, 0.65, 0.25, 1);
}

.aiaiai-product-card:hover .aiaiai-product-image img {
  transform: scale(1.045);
}

.aiaiai-product-badge {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 18px;
  padding: 6px 9px;
  color: #0a0a0a;
  background: var(--aiaiai-accent);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.aiaiai-product-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px 30px;
  padding: clamp(24px, 3.5vw, 48px);
}

.aiaiai-product-body h3,
.aiaiai-product-body h4 {
  margin: 0;
  font-size: clamp(22px, 2.5vw, 36px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.aiaiai-product-card--part .aiaiai-product-image {
  background: #f0f0ec;
}

.aiaiai-product-card--part .aiaiai-product-image img {
  padding: 4%;
  object-fit: contain;
}

.aiaiai-product-number {
  color: #6f6f6d;
  font-size: 10px;
  letter-spacing: 0.16em;
}

.aiaiai-product-description {
  grid-column: 1 / -1;
  min-height: 3.5em;
  color: var(--aiaiai-muted);
  font-size: 13px;
}

.aiaiai-product-price {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  gap: 15px;
  padding-top: 17px;
  border-top: 1px solid var(--aiaiai-line);
}

.aiaiai-product-price-inc {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.aiaiai-product-price-inc span {
  padding: 3px 6px;
  color: #090909;
  background: var(--aiaiai-accent);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.aiaiai-product-price-inc strong {
  color: var(--aiaiai-text);
  font-size: clamp(25px, 2.5vw, 36px);
  line-height: 1;
  letter-spacing: -0.035em;
}

.aiaiai-product-price-ex {
  color: var(--aiaiai-muted);
  font-size: 11px;
}

.aiaiai-product-price-ex span {
  margin-right: 3px;
  color: #777;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.aiaiai-product-use {
  align-self: center;
  color: #d0d0cd;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.aiaiai-product-use strong {
  display: block;
  margin-bottom: 3px;
  color: #6f6f6d;
  font-size: 8px;
  letter-spacing: 0.16em;
}

.aiaiai-product-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 164px;
  min-height: 45px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  font-size: 11px;
  font-weight: 700;
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.aiaiai-product-link small {
  margin-top: 2px;
  color: #777;
  font-size: 7px;
  letter-spacing: 0.12em;
  transition: color 0.25s ease;
}

.aiaiai-product-link:hover small,
.aiaiai-product-link:focus-visible small {
  color: #111;
}

.aiaiai-product-link:hover,
.aiaiai-product-link:focus-visible {
  border-color: var(--aiaiai-accent);
  color: #090909;
  background: var(--aiaiai-accent);
}

.aiaiai-guide {
  background: #efefeb;
  color: #0a0a0a;
}

.aiaiai-guide .aiaiai-section-number,
.aiaiai-guide .aiaiai-guide-en {
  color: #5d7400;
}

.aiaiai-guide .aiaiai-section-head > p:last-child {
  color: #565653;
}

.aiaiai-guide-list {
  border-top: 1px solid rgba(0, 0, 0, 0.28);
}

.aiaiai-guide-row {
  display: grid;
  grid-template-columns: 58px 0.85fr 1.1fr 1fr;
  align-items: center;
  gap: 28px;
  padding: 36px 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.28);
  transition: padding 0.3s ease, background 0.3s ease;
}

.aiaiai-guide-row:hover {
  padding-right: 18px;
  padding-left: 18px;
  background: rgba(255, 255, 255, 0.5);
}

.aiaiai-guide-index {
  color: #888883;
  font-size: 10px;
}

.aiaiai-guide-row h3 {
  margin-top: 5px;
  font-size: clamp(19px, 2vw, 28px);
  line-height: 1.3;
}

.aiaiai-guide-row > p {
  color: #4d4d4a;
  font-size: 13px;
}

.aiaiai-models {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.aiaiai-models a {
  padding: 6px 9px;
  border: 1px solid rgba(0, 0, 0, 0.3);
  color: #111 !important;
  background: transparent;
  font-size: 9px;
  font-weight: 700;
  transition: background 0.2s ease;
}

.aiaiai-models a:hover,
.aiaiai-models a:focus-visible {
  background: var(--aiaiai-accent);
}

.aiaiai-guide-note {
  margin-top: 22px !important;
  color: #6b6b67;
  font-size: 11px;
  text-align: right;
}

.aiaiai-price-note {
  margin-top: 32px !important;
  color: #777;
  font-size: 10px;
  text-align: right;
}

.aiaiai-reasons {
  background: #0b0b0b;
}

.aiaiai-reason-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--aiaiai-line);
  border: 1px solid var(--aiaiai-line);
}

.aiaiai-reason-card {
  grid-column: span 2;
  min-height: 270px;
  padding: clamp(25px, 3vw, 42px);
  background: var(--aiaiai-panel);
  transition: background 0.3s ease;
}

.aiaiai-reason-card:nth-child(4),
.aiaiai-reason-card:nth-child(5) {
  grid-column: span 3;
}

.aiaiai-reason-card:hover {
  background: var(--aiaiai-soft);
}

.aiaiai-reason-card > span {
  color: var(--aiaiai-accent);
  font-size: 10px;
}

.aiaiai-reason-card h3 {
  max-width: 14em;
  margin-top: 65px !important;
  font-size: clamp(19px, 2vw, 28px);
  line-height: 1.45;
}

.aiaiai-reason-card p {
  max-width: 30em;
  margin-top: 18px !important;
  color: var(--aiaiai-muted);
  font-size: 12px;
}

.aiaiai-final-cta {
  position: relative;
  min-height: 88svh;
  padding: clamp(110px, 15vw, 220px) clamp(24px, 7vw, 112px) 60px;
  overflow: hidden;
  text-align: center;
  isolation: isolate;
}

.aiaiai-final-cta::before {
  position: absolute;
  z-index: -2;
  top: 50%;
  left: 50%;
  width: min(70vw, 920px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.aiaiai-final-lines {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.23;
  background: repeating-linear-gradient(90deg, transparent 0, transparent calc(10% - 1px), var(--aiaiai-line) 10%);
  mask-image: radial-gradient(circle, #000, transparent 70%);
}

.aiaiai-final-cta h2 {
  margin-top: 18px !important;
  font-size: clamp(44px, 7vw, 108px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.06em;
}

.aiaiai-final-store {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 32px;
}

.aiaiai-final-store img {
  width: 74px;
  height: auto;
}

.aiaiai-final-store span {
  color: var(--aiaiai-muted);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.aiaiai-final-cta > p:not(.aiaiai-kicker):not(.aiaiai-footer-mark) {
  max-width: 600px;
  margin: 32px auto 0 !important;
  color: var(--aiaiai-muted);
  font-size: 14px;
}

.aiaiai-final-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  margin-top: 12px;
}

.aiaiai-text-link {
  margin-top: 34px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--aiaiai-line);
  font-size: 11px;
  font-weight: 700;
}

.aiaiai-text-link span {
  display: inline-block;
  margin-left: 14px;
  transition: transform 0.25s ease;
}

.aiaiai-text-link:hover span {
  transform: translateX(5px);
}

.aiaiai-footer-mark {
  margin-top: clamp(100px, 16vw, 220px) !important;
  font-size: clamp(80px, 22vw, 330px);
  font-weight: 800;
  line-height: 0.7;
  letter-spacing: -0.09em;
  opacity: 0.045;
}

.aiaiai-reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.65, 0.25, 1);
}

.aiaiai-reveal.aiaiai-is-visible {
  opacity: 1;
  transform: translateY(0);
}

.aiaiai-product-card.aiaiai-reveal:nth-child(even) {
  transition-delay: 0.1s;
}

.aiaiai-display-line:nth-child(2) {
  transition-delay: 0.1s;
}

@media (max-width: 960px) {
  .aiaiai-otai-intro {
    grid-template-columns: 0.45fr 1.55fr;
  }

  .aiaiai-otai-points {
    grid-column: 2;
  }

  .aiaiai-hero {
    grid-template-columns: 1fr;
    align-content: center;
    padding-bottom: 70px;
  }

  .aiaiai-hero-copy {
    padding-top: 30px;
    transform: none;
  }

  .aiaiai-hero-visual {
    position: absolute;
    z-index: -1;
    right: -17vw;
    bottom: 6vh;
    width: 72vw;
    margin: 0;
    opacity: 0.5;
  }

  .aiaiai-hero-visual img {
    width: 100%;
  }

  .aiaiai-visual-caption {
    display: none;
  }

  .aiaiai-section-head {
    grid-template-columns: 120px 1fr;
  }

  .aiaiai-section-head > p:last-child {
    grid-column: 2;
  }

  .aiaiai-guide-row {
    grid-template-columns: 42px 0.75fr 1.25fr;
  }

  .aiaiai-models {
    grid-column: 2 / -1;
  }
}

@media (max-width: 720px) {
  .aiaiai-otai-strip {
    min-height: 28px;
    padding: 5px 20px;
    font-size: 7px;
  }

  .aiaiai-otai-strip > span {
    display: none;
  }

  .aiaiai-sitebar {
    top: 28px;
    min-height: 74px;
    padding: 14px 20px;
  }

  .aiaiai-brand-lockup {
    gap: 9px;
  }

  .aiaiai-otai-logo {
    width: 48px;
    height: 42px;
  }

  .aiaiai-otai-logo img {
    width: 56px;
  }

  .aiaiai-brand-divider {
    height: 27px;
  }

  .aiaiai-wordmark span {
    font-size: 17px;
  }

  .aiaiai-wordmark small {
    display: none;
  }

  .aiaiai-nav {
    gap: 11px;
    font-size: 8px;
  }

  .aiaiai-hero {
    min-height: 760px;
    padding: 150px 20px 72px;
  }

  .aiaiai-otai-intro {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 60px 20px;
  }

  .aiaiai-otai-intro-brand {
    display: flex;
    align-items: center;
    gap: 20px;
  }

  .aiaiai-otai-intro-brand img {
    width: 80px;
  }

  .aiaiai-otai-intro-brand p {
    margin-top: 0 !important;
  }

  .aiaiai-otai-intro-copy h2 {
    font-size: 29px;
  }

  .aiaiai-otai-points {
    grid-column: auto;
  }

  .aiaiai-hero-grid {
    background-size: 25vw 25vw;
  }

  .aiaiai-display {
    font-size: clamp(53px, 20vw, 88px);
    line-height: 0.83;
  }

  .aiaiai-display-outline {
    -webkit-text-stroke-width: 1px;
  }

  .aiaiai-hero-visual {
    right: -38vw;
    bottom: 8vh;
    width: 118vw;
    opacity: 0.46;
  }

  .aiaiai-scroll-cue {
    display: none;
  }

  .aiaiai-section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .aiaiai-section-head,
  .aiaiai-about .aiaiai-section-head {
    display: block;
  }

  .aiaiai-section-head h2 {
    margin-top: 14px !important;
  }

  .aiaiai-section-head > p:last-child {
    margin-top: 22px !important;
  }

  .aiaiai-about-layout {
    grid-template-columns: 1fr;
  }

  .aiaiai-about-statement {
    font-size: 28px;
  }

  .aiaiai-staff-comment {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 28px 24px 32px;
  }

  .aiaiai-staff-comment-label {
    gap: 22px;
    padding: 0 0 28px;
    border-right: 0;
    border-bottom: 1px solid var(--aiaiai-line);
  }

  .aiaiai-staff-comment-body h3 {
    margin-top: 14px;
    font-size: 28px;
  }

  .aiaiai-staff-comment-text {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .aiaiai-product-grid {
    grid-template-columns: 1fr;
  }

  .aiaiai-category-nav {
    grid-template-columns: 1fr 1fr;
    margin-bottom: 80px;
  }

  .aiaiai-category-nav a {
    min-height: 58px;
    padding: 11px 12px;
    font-size: 10px;
  }

  .aiaiai-category-nav a:first-child {
    grid-column: 1 / -1;
  }

  .aiaiai-product-categories {
    gap: 100px;
  }

  .aiaiai-product-category {
    scroll-margin-top: 12px;
  }

  .aiaiai-product-category-head {
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding-bottom: 24px;
  }

  .aiaiai-product-category-head > p:first-child {
    grid-column: 1 / -1;
    padding-top: 16px;
  }

  .aiaiai-product-category-head h3 {
    margin-top: 10px !important;
    font-size: 30px;
  }

  .aiaiai-product-category-head div > p {
    font-size: 11px;
  }

  .aiaiai-product-category-head > span {
    align-self: start;
    margin-top: 18px;
  }

  .aiaiai-product-card.aiaiai-reveal:nth-child(even) {
    transition-delay: 0s;
  }

  .aiaiai-product-image {
    aspect-ratio: 1 / 0.78;
  }

  .aiaiai-product-body {
    padding: 24px 20px 26px;
  }

  .aiaiai-product-description {
    min-height: 0;
  }

  .aiaiai-product-price {
    align-items: flex-end;
    justify-content: space-between;
    gap: 10px;
  }

  .aiaiai-product-price-inc strong {
    font-size: 28px;
  }

  .aiaiai-price-note {
    margin-top: 24px !important;
    text-align: left;
  }

  .aiaiai-product-link {
    width: 154px;
  }

  .aiaiai-guide-row {
    grid-template-columns: 34px 1fr;
    gap: 16px;
    padding: 27px 4px;
  }

  .aiaiai-guide-row > p:not(.aiaiai-models),
  .aiaiai-models {
    grid-column: 2;
  }

  .aiaiai-guide-row:hover {
    padding-right: 4px;
    padding-left: 4px;
  }

  .aiaiai-guide-note {
    text-align: left;
  }

  .aiaiai-reason-grid {
    grid-template-columns: 1fr;
  }

  .aiaiai-reason-card,
  .aiaiai-reason-card:nth-child(4),
  .aiaiai-reason-card:nth-child(5) {
    grid-column: auto;
    min-height: 230px;
  }

  .aiaiai-reason-card h3 {
    margin-top: 42px !important;
  }

  .aiaiai-final-cta {
    min-height: 760px;
    padding-right: 20px;
    padding-left: 20px;
  }

  .aiaiai-final-actions {
    flex-direction: column;
    gap: 0;
  }

  .aiaiai-final-store {
    flex-direction: column;
    gap: 10px;
  }

  .aiaiai-footer-mark {
    font-size: 30vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  .aiaiai-feature *,
  .aiaiai-feature *::before,
  .aiaiai-feature *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .aiaiai-reveal {
    opacity: 1;
    transform: none;
  }
}

/* =========================================================
 * OTAIRECORD global header / footer
 * https://www.otaiweb.com/ranking/ の共通部分に合わせた構成です。
 * ========================================================= */
.aiaiai-otai-global {
  position: relative;
  z-index: 20;
  color: #333;
  background: var(--aiaiai-accent);
  font-family: Arial, "Helvetica Neue", "Noto Sans JP", sans-serif;
}

.aiaiai-otai-global-visual {
  position: relative;
  display: block;
  width: 100%;
  height: 86px;
  background-color: var(--aiaiai-accent);
  background-image: url("./assets/otai-header-main.gif");
  background-repeat: no-repeat;
  background-position: top center;
  background-size: auto 86px;
}

.aiaiai-otai-mobile-brand {
  position: absolute;
  inset: 0 auto 0 0;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 370px;
  padding-right: 80px;
  padding-left: 14px;
  color: #242424;
  background: linear-gradient(90deg, var(--aiaiai-accent) 0%, var(--aiaiai-accent) 72%, transparent 100%);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.aiaiai-otai-mobile-brand img {
  width: 94px;
  height: auto;
}

.aiaiai-otai-global-nav {
  display: grid;
  grid-template-areas:
    "links actions"
    ". search";
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  min-height: 84px;
  padding: 0 14px 8px;
  background: var(--aiaiai-accent);
}

.aiaiai-otai-global-links {
  grid-area: links;
  display: flex;
  align-self: start;
  min-width: 0;
}

.aiaiai-otai-global-links a {
  flex: 0 0 auto;
  padding: 12px 13px;
  border-right: 1px solid rgba(0, 0, 0, 0.16);
  color: #3f3f3f;
  font-size: 11px;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}

.aiaiai-otai-global-links a:hover,
.aiaiai-otai-global-links a:focus-visible {
  color: #000;
  background: rgba(255, 255, 255, 0.36);
}

.aiaiai-otai-global-actions {
  grid-area: actions;
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding-top: 8px;
}

.aiaiai-otai-global-actions a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 36px;
  padding: 7px 12px;
  border: 1px solid #aaa;
  color: #333;
  background: linear-gradient(#fff, #f1f1f1);
  box-shadow: inset 0 1px #fff;
  font-size: 11px;
  white-space: nowrap;
}

.aiaiai-otai-global-actions strong {
  font-size: 8px;
  letter-spacing: 0.08em;
}

.aiaiai-otai-search {
  grid-area: search;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
  padding-top: 3px;
}

.aiaiai-otai-search input[type="search"] {
  width: 205px;
  height: 34px;
  padding: 7px 10px;
  border: 1px solid #aaa;
  border-radius: 0;
  color: #333;
  background: #fff;
  font: inherit;
  font-size: 12px;
}

.aiaiai-otai-search-modes {
  display: flex;
  gap: 7px;
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.aiaiai-otai-search-modes label {
  display: flex;
  align-items: center;
  gap: 2px;
}

.aiaiai-otai-search-modes input {
  margin: 0;
  accent-color: #1688d4;
}

.aiaiai-otai-search button {
  height: 34px;
  padding: 0 13px;
  border: 1px solid #aaa;
  border-radius: 0;
  color: #333;
  background: linear-gradient(#fff, #efefef);
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}

.aiaiai-feature .aiaiai-sitebar {
  position: relative;
  top: auto;
  left: auto;
  z-index: 10;
  min-height: 80px;
  padding: 16px clamp(24px, 5vw, 80px);
  background: #090909;
}

.aiaiai-feature .aiaiai-hero {
  min-height: calc(100svh - 80px);
  padding-top: 110px;
}

.aiaiai-feature .aiaiai-hero-copy {
  transform: translateY(-6vh);
}

.aiaiai-otai-footer {
  position: relative;
  min-height: 131px;
  padding: 22px 92px 20px;
  color: #5b5b5b;
  background: var(--aiaiai-accent);
  font-family: Arial, "Helvetica Neue", "Noto Sans JP", sans-serif;
  font-size: 11px;
  text-align: center;
}

.aiaiai-otai-footer ul {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.aiaiai-otai-footer li {
  display: flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border-right: 1px solid rgba(0, 0, 0, 0.35);
}

.aiaiai-otai-footer li:first-child {
  border-left: 1px solid rgba(0, 0, 0, 0.35);
}

.aiaiai-otai-footer a {
  color: #555;
}

.aiaiai-otai-footer a:hover,
.aiaiai-otai-footer a:focus-visible {
  color: #000;
  text-decoration: underline;
}

.aiaiai-otai-related {
  gap: 9px;
}

.aiaiai-otai-related img {
  display: block;
  width: 160px;
  height: auto;
}

.aiaiai-otai-footer > p {
  margin-top: 15px !important;
}

.aiaiai-otai-page-top {
  position: absolute;
  top: 0;
  right: 0;
  display: block;
  width: 75px;
  height: 75px;
}

.aiaiai-otai-page-top img {
  width: 75px;
  height: 75px;
}

@media (max-width: 900px) {
  .aiaiai-otai-global-visual {
    height: 66px;
    background-image: none;
  }

  .aiaiai-otai-mobile-brand {
    position: static;
    display: flex;
    align-items: center;
    gap: 14px;
    height: 66px;
    padding: 6px 18px;
    color: #222;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    background: transparent;
    min-width: 0;
    padding-left: 18px;
  }

  .aiaiai-otai-mobile-brand img {
    width: 70px;
    height: auto;
  }

  .aiaiai-otai-global-nav {
    display: flex;
    flex-wrap: wrap;
    min-height: 0;
    padding: 0 0 8px;
  }

  .aiaiai-otai-global-links {
    width: 100%;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .aiaiai-otai-global-links a {
    padding: 10px 12px;
    font-size: 10px;
  }

  .aiaiai-otai-global-actions {
    order: 2;
    flex: 1 1 360px;
    justify-content: flex-start;
    padding: 7px 10px 0;
  }

  .aiaiai-otai-search {
    order: 3;
    flex: 1 1 430px;
    justify-content: flex-end;
    padding: 7px 10px 0;
  }

  .aiaiai-feature .aiaiai-hero {
    min-height: 760px;
    padding-top: 120px;
  }

  .aiaiai-feature .aiaiai-hero-copy {
    transform: none;
  }
}

@media (max-width: 600px) {
  .aiaiai-otai-global-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .aiaiai-otai-global-actions a {
    justify-content: center;
    padding: 6px;
    font-size: 9px;
  }

  .aiaiai-otai-search {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px;
  }

  .aiaiai-otai-search input[type="search"] {
    width: 100%;
  }

  .aiaiai-otai-search-modes {
    grid-column: 1;
    grid-row: 2;
  }

  .aiaiai-otai-search button {
    grid-column: 2;
    grid-row: 1 / 3;
    height: 100%;
  }

  .aiaiai-feature .aiaiai-sitebar {
    top: auto;
    min-height: 64px;
    padding: 12px 16px;
  }

  .aiaiai-feature .aiaiai-hero {
    padding-top: 112px;
  }

  .aiaiai-otai-footer {
    padding: 26px 74px 24px 16px;
    font-size: 10px;
    text-align: left;
  }

  .aiaiai-otai-footer ul {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .aiaiai-otai-footer li,
  .aiaiai-otai-footer li:first-child {
    padding: 4px 8px;
    border-left: 0;
  }

  .aiaiai-otai-related {
    width: 100%;
    margin-top: 7px;
    padding-left: 0 !important;
    border-right: 0 !important;
  }

  .aiaiai-otai-related img {
    width: 135px;
  }
}

/* =========================================================
 * Header structure from the supplied OTAIRECORD HTML
 * PC: brand banner + menu/search / SP: toolbar + dropdowns
 * ========================================================= */
.aiaiai-otai-desktop-brand {
  position: absolute;
  inset: 0 auto 0 0;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 370px;
  padding-right: 80px;
  padding-left: 14px;
  color: #242424;
  background: linear-gradient(90deg, var(--aiaiai-accent) 0%, var(--aiaiai-accent) 72%, transparent 100%);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.aiaiai-otai-desktop-brand img {
  width: 94px;
  height: auto;
}

.aiaiai-otai-global-menu-panel {
  display: contents;
}

.aiaiai-otai-mobile-toolbar {
  display: none;
}

@media (max-width: 768px) {
  .aiaiai-otai-global-visual {
    display: none;
  }

  .aiaiai-otai-global-nav {
    display: block;
    min-height: 0;
    padding: 0;
  }

  .aiaiai-otai-mobile-toolbar {
    display: grid;
    grid-template-columns: 48px 68px minmax(70px, 1fr) minmax(70px, 1fr) 54px;
    align-items: center;
    min-height: 68px;
    background: var(--aiaiai-accent);
  }

  .aiaiai-otai-mobile-toolbar button,
  .aiaiai-otai-mobile-toolbar a {
    height: 68px;
    border: 0;
    border-right: 1px solid rgba(0, 0, 0, 0.18);
    border-radius: 0;
    color: #282828;
    background: transparent;
  }

  .aiaiai-otai-menu-toggle,
  .aiaiai-otai-search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
  }

  .aiaiai-otai-menu-icon {
    display: grid;
    gap: 4px;
    width: 20px;
  }

  .aiaiai-otai-menu-icon i {
    display: block;
    width: 100%;
    height: 2px;
    background: #222;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .aiaiai-menu-open .aiaiai-otai-menu-icon i:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .aiaiai-menu-open .aiaiai-otai-menu-icon i:nth-child(2) {
    opacity: 0;
  }

  .aiaiai-menu-open .aiaiai-otai-menu-icon i:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .aiaiai-otai-mobile-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }

  .aiaiai-otai-mobile-logo img {
    width: 62px;
    max-width: none;
    height: auto;
  }

  .aiaiai-otai-mobile-category {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 2px;
    font-size: 9px;
    font-weight: 700;
    line-height: 1.35;
    text-align: center;
  }

  .aiaiai-otai-search-toggle span:first-child {
    font-size: 7px;
    font-weight: 800;
    letter-spacing: 0.05em;
    writing-mode: vertical-rl;
  }

  .aiaiai-otai-global-menu-panel {
    display: none;
    background: #f4f4f0;
  }

  .aiaiai-menu-open .aiaiai-otai-global-menu-panel {
    display: block;
  }

  .aiaiai-otai-global-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    overflow: visible;
  }

  .aiaiai-otai-global-links a {
    padding: 12px;
    border-right: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    color: #333;
    background: #fff;
    font-size: 10px;
  }

  .aiaiai-otai-global-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 8px;
  }

  .aiaiai-otai-global-actions a {
    justify-content: center;
    min-width: 0;
    padding: 8px 4px;
    font-size: 9px;
  }

  .aiaiai-otai-search {
    display: none;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 7px;
    padding: 9px;
    border-top: 1px solid rgba(0, 0, 0, 0.2);
    background: var(--aiaiai-accent);
  }

  .aiaiai-search-open .aiaiai-otai-search {
    display: grid;
  }

  .aiaiai-otai-search input[type="search"] {
    width: 100%;
  }

  .aiaiai-otai-search-modes {
    grid-column: 1;
    grid-row: 2;
  }

  .aiaiai-otai-search button {
    grid-column: 2;
    grid-row: 1 / 3;
    height: 100%;
  }
}