/* =============================================
   CSS Custom Properties
============================================= */
:root {
  --color-bg-primary:    #0a0e1a;
  --color-bg-secondary:  #0d1425;
  --color-bg-card:       #111827;
  --color-accent-cyan:   #00e5ff;
  --color-accent-blue:   #1e90ff;
  --color-accent-purple: #7b2ff7;
  --color-text-primary:  #ffffff;
  --color-text-secondary:#94a3b8;
  --color-border:        rgba(0, 229, 255, 0.2);

  --font-jp: 'Noto Sans JP', sans-serif;
  --font-en: 'Orbitron', sans-serif;

  --glow-cyan:   0 0 20px rgba(0, 229, 255, 0.4);
  --glow-cyan-lg:0 0 40px rgba(0, 229, 255, 0.3), 0 0 80px rgba(0, 229, 255, 0.1);
  --glow-blue:   0 0 20px rgba(30, 144, 255, 0.4);

  --radius-card: 16px;
  --transition:  0.3s ease;

  --container-max: 1200px;
  --section-pad: 100px;
}

/* =============================================
   Reset & Base
============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-jp);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.8;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* =============================================
   Utility
============================================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* =============================================
   Section Common
============================================= */
.section {
  position: relative;
  padding: var(--section-pad) 0;
  overflow: hidden;
}

.section__bg-overlay {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.12;
  z-index: 0;
}

.section__header {
  text-align: center;
  margin-bottom: 64px;
}

.section__label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--color-accent-cyan);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section__title {
  font-family: var(--font-jp);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}

.section__line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-purple));
  margin: 0 auto;
  box-shadow: var(--glow-cyan);
}

/* =============================================
   Buttons
============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-jp);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
  color: #0a0e1a;
  font-weight: 700;
  box-shadow: var(--glow-cyan);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.6), 0 8px 24px rgba(0, 229, 255, 0.3);
}

.btn--outline {
  border: 1.5px solid var(--color-accent-cyan);
  color: var(--color-accent-cyan);
  background: rgba(0, 229, 255, 0.05);
}
.btn--outline:hover {
  background: rgba(0, 229, 255, 0.12);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* =============================================
   Header
============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: background 0.4s ease, padding 0.4s ease, backdrop-filter 0.4s ease;
}

.header.scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.logo-ai   { color: var(--color-accent-cyan); text-shadow: var(--glow-cyan); }
.logo-easy { color: var(--color-text-primary); }

/* ロゴ画像 */
.logo-img {
  height: 120px;
  width: auto;
  display: block;
  object-fit: contain;
}
.logo-img--contact { height: 150px; margin: 0 auto 10px; }

.nav__list {
  display: flex;
  gap: 36px;
}

.nav__link {
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent-cyan);
  transition: width var(--transition);
  box-shadow: var(--glow-cyan);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-accent-cyan);
}
.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-accent-cyan);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   Hero
============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg-primary);
}

/* Grid decoration */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 760px;
  padding: 120px 24px 80px;
  margin-left: max(24px, calc((100vw - 1200px) / 2 + 24px));
}

.hero__sub {
  font-family: var(--font-en);
  font-size: clamp(0.65rem, 1.5vw, 0.8rem);
  letter-spacing: 0.3em;
  color: var(--color-accent-cyan);
  text-transform: uppercase;
  margin-bottom: 20px;
  opacity: 0;
}

.hero__title {
  font-family: var(--font-jp);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
}

.hero__lead {
  max-width: 760px;
  color: var(--color-text-secondary);
  font-size: clamp(0.9rem, 1.35vw, 1.05rem);
  line-height: 2;
  margin-bottom: 40px;
  opacity: 0;
}

.hero__buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
}

.hero__visual {
  position: absolute;
  right: max(24px, calc((100vw - 1200px) / 2));
  top: 50%;
  transform: translateY(-50%);
  width: clamp(280px, 35vw, 480px);
  z-index: 2;
  animation: floatY 6s ease-in-out infinite;
}

.hero__network-img {
  width: 100%;
  filter: drop-shadow(0 0 40px rgba(0, 229, 255, 0.5));
  border-radius: 50%;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.hero__scroll-indicator span {
  display: block;
  width: 24px;
  height: 38px;
  border: 2px solid rgba(0, 229, 255, 0.4);
  border-radius: 12px;
  position: relative;
}

.hero__scroll-indicator span::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-accent-cyan);
  border-radius: 2px;
  animation: scrollDot 1.8s ease-in-out infinite;
}

/* =============================================
   Bottom Zone（About + Contact 共通ゾーン）
============================================= */
.bottom-zone {
  position: relative;
  background: var(--color-bg-secondary);
}

.bottom-zone__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.07;
  z-index: 0;
  pointer-events: none;
}

.zone-divider {
  position: relative;
  z-index: 2;
  height: 1px;
  margin: 0 auto;
  max-width: var(--container-max);
  padding: 0 24px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

/* =============================================
   About
============================================= */
.about { background: transparent; }

.about__inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  align-items: center;
}

.about__photo {
  display: flex;
  justify-content: center;
}

.about__photo-wrap {
  position: relative;
  width: 260px;
  height: 260px;
}

.about__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--color-accent-cyan);
  box-shadow: var(--glow-cyan-lg);
  position: relative;
  z-index: 1;
}

.about__photo-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px dashed rgba(0, 229, 255, 0.3);
  animation: spinSlow 20s linear infinite;
}

.about__name-en {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-accent-cyan);
  margin-bottom: 8px;
}

.about__name {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 8px;
}

.about__role {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.about__bio {
  color: var(--color-text-secondary);
  line-height: 2;
  margin-bottom: 36px;
  font-size: 0.95rem;
}

/* Skills */
.skills { margin-bottom: 36px; }

.skill { margin-bottom: 16px; }

.skill__header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.85rem;
}

.skill__name { color: var(--color-text-primary); font-weight: 500; }
.skill__pct  { color: var(--color-accent-cyan); font-family: var(--font-en); font-size: 0.8rem; }

.skill__bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}

.skill__fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-blue));
  border-radius: 3px;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.sns-link {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 1rem;
  transition: var(--transition);
  background: rgba(0, 229, 255, 0.04);
}

.sns-link:hover {
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-3px);
}

/* =============================================
   Services
============================================= */
.services { background: var(--color-bg-primary); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

/* Glass Card */
.card {
  background:
    linear-gradient(145deg, rgba(17, 24, 39, 0.48), rgba(10, 14, 26, 0.24)),
    rgba(17, 24, 39, 0.22);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 229, 255, 0.28);
  border-radius: var(--radius-card);
  padding: 40px 32px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  transform: translateY(-8px);
  background:
    linear-gradient(145deg, rgba(17, 24, 39, 0.58), rgba(10, 14, 26, 0.34)),
    rgba(17, 24, 39, 0.28);
  box-shadow: var(--glow-cyan-lg);
  border-color: rgba(0, 229, 255, 0.4);
}
.card:hover::before { opacity: 1; }

.card__icon-wrap {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 24px;
  border: 2px solid var(--color-border);
  box-shadow: var(--glow-cyan);
}

.card__icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 20px;
}

.card__tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  border: 1px solid var(--color-border);
  font-size: 0.75rem;
  color: var(--color-accent-cyan);
  background: rgba(0, 229, 255, 0.05);
  letter-spacing: 0.05em;
}

.expertise {
  margin-top: 48px;
  padding: 32px;
  background: rgba(17, 24, 39, 0.72);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
  position: relative;
  overflow: hidden;
}

.expertise__mascot {
  position: absolute;
  right: 22px;
  bottom: -12px;
  width: min(22vw, 220px);
  opacity: 0.72;
  filter: drop-shadow(0 0 22px rgba(0, 229, 255, 0.28));
  pointer-events: none;
  z-index: 0;
}

.expertise__label,
.expertise__title,
.expertise__grid {
  position: relative;
  z-index: 1;
}

.expertise__label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-accent-cyan);
  margin-bottom: 8px;
}

.expertise__title {
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  line-height: 1.6;
  margin-bottom: 24px;
}

.expertise__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding-right: min(20vw, 190px);
}

.expertise__item {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(0, 229, 255, 0.14);
  border-radius: 12px;
}

.expertise__category {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--color-accent-cyan);
  font-size: 0.82rem;
  font-weight: 700;
}

.expertise__item p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* =============================================
   Audience / Pricing
============================================= */
.audience {
  background: var(--color-bg-secondary);
}

.audience__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.audience-card {
  position: relative;
  min-height: 100%;
  padding: 36px;
  background:
    linear-gradient(145deg, rgba(17, 24, 39, 0.72), rgba(10, 14, 26, 0.42)),
    rgba(17, 24, 39, 0.32);
  border: 1px solid rgba(0, 229, 255, 0.24);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.audience-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(0, 229, 255, 0.12), transparent 42%);
  pointer-events: none;
}

.audience-card__image {
  position: relative;
  aspect-ratio: 16 / 9;
  margin-bottom: 24px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(0, 229, 255, 0.24);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.16);
}

.audience-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 52%, rgba(10, 14, 26, 0.5));
  pointer-events: none;
}

.audience-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.audience-card__label,
.price-card__type {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--color-accent-cyan);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.audience-card__title,
.price-card__title,
.flow-step__title {
  font-size: 1.18rem;
  line-height: 1.5;
  margin-bottom: 12px;
}

.audience-card__desc,
.price-card__desc,
.flow-step__desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.9;
}

.audience-card__list {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

.audience-card__list li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
}

.audience-card__list li::before {
  content: '';
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-cyan);
  box-shadow: var(--glow-cyan);
}

.pricing {
  background: var(--color-bg-primary);
}

.pricing__notice {
  max-width: 960px;
  margin: -24px auto 36px;
  padding: 16px 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 12px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.pricing__notice i {
  color: var(--color-accent-cyan);
  margin-top: 0.28em;
}

.pricing__notice p {
  margin: 0;
  line-height: 1.85;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.price-card {
  padding: 34px 28px;
  background: rgba(17, 24, 39, 0.78);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.price-card:hover,
.price-card--featured {
  border-color: rgba(0, 229, 255, 0.42);
  box-shadow: var(--glow-cyan-lg);
}

.price-card:hover {
  transform: translateY(-6px);
}

.price-card__price {
  margin: 20px 0 18px;
  font-family: var(--font-en);
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  line-height: 1.2;
  color: var(--color-text-primary);
}

.price-card__price span {
  margin-left: 6px;
  font-family: var(--font-jp);
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

/* =============================================
   Flow
============================================= */
.flow {
  background: var(--color-bg-primary);
}

.flow__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: flow;
}

.flow-step {
  position: relative;
  padding: 32px 24px;
  background: rgba(17, 24, 39, 0.72);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 48px;
  right: -11px;
  width: 20px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent-cyan), transparent);
}

.flow-step__num {
  display: block;
  font-family: var(--font-en);
  font-size: 0.88rem;
  color: var(--color-accent-cyan);
  letter-spacing: 0.16em;
  margin-bottom: 18px;
}

/* =============================================
   Works
============================================= */
.works { background: var(--color-bg-secondary); }

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.work-card {
  background: rgba(17, 24, 39, 0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.work-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-purple));
  transition: width 0.4s ease;
}

.work-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
  border-color: rgba(0, 229, 255, 0.35);
}
.work-card:hover::after { width: 100%; }

.work-card__category {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-accent-cyan);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.work-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
}

.work-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
  margin-bottom: 20px;
}

.work-card__meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.work-card__meta i { color: var(--color-accent-cyan); margin-right: 4px; }

/* =============================================
   Contact
============================================= */
.contact { background: transparent; }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  align-items: start;
}

/* Form */
.contact__form {
  background: rgba(17, 24, 39, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 48px;
}

.form__group { margin-bottom: 24px; }

.form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.required { color: var(--color-accent-cyan); margin-left: 4px; }

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 13px 16px;
  color: var(--color-text-primary);
  font-family: var(--font-jp);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.form__select option { background: var(--color-bg-card); }

.form__textarea { resize: vertical; min-height: 140px; }

/* Contact Info */
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.contact__info-label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-accent-cyan);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.contact__link {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  word-break: break-all;
}
.contact__link:hover { color: var(--color-accent-cyan); }

.contact__sns { display: flex; gap: 12px; }

.line-card {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px;
  background:
    linear-gradient(145deg, rgba(17, 24, 39, 0.48), rgba(10, 14, 26, 0.24)),
    rgba(17, 24, 39, 0.22);
  border: 1px solid rgba(0, 229, 255, 0.24);
  border-radius: 16px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.line-card__mascot {
  width: 96px;
  filter: drop-shadow(0 0 18px rgba(0, 229, 255, 0.35));
}

.line-card__content {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.line-card__text {
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  line-height: 1.6;
}

.line-card__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #06c755, #00e5ff);
  color: #07111a;
  font-size: 0.86rem;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(6, 199, 85, 0.28);
  transition: transform var(--transition), box-shadow var(--transition);
}

.line-card__button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(6, 199, 85, 0.42), 0 8px 22px rgba(0, 229, 255, 0.16);
}

.brand-card {
  padding: 24px 20px;
  background:
    linear-gradient(145deg, rgba(17, 24, 39, 0.44), rgba(10, 14, 26, 0.2)),
    rgba(17, 24, 39, 0.18);
  border: 1px solid rgba(0, 229, 255, 0.22);
  border-radius: 16px;
  text-align: center;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand-card__tagline {
  display: inline-block;
  color: var(--color-text-primary);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-shadow: 0 0 16px rgba(0, 229, 255, 0.55);
}

.brand-card__reading {
  margin: -6px 0 8px;
  color: var(--color-accent-cyan);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.22em;
}

/* =============================================
   Footer
============================================= */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: 24px 0 20px;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer__nav {
  display: flex;
  gap: 32px;
}

.footer__link {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--color-accent-cyan); }

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

/* =============================================
   Dify Chatbot
============================================= */
#dify-chatbot-bubble-button {
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue)) !important;
  box-shadow: var(--glow-cyan) !important;
}

#dify-chatbot-bubble-window {
  position: fixed !important;
  right: 1rem !important;
  bottom: 1rem !important;
  width: min(24rem, calc(100vw - 32px)) !important;
  height: min(40rem, calc(100vh - 96px)) !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--glow-cyan-lg) !important;
}

.chatbot-fallback {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1001;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 14px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
  color: #07111a;
  font-weight: 700;
  box-shadow: var(--glow-cyan);
  transition: transform var(--transition), box-shadow var(--transition);
}

.chatbot-fallback:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.6), 0 8px 24px rgba(0, 229, 255, 0.3);
}

.dify-file-preview .chatbot-fallback,
.dify-fallback-active .chatbot-fallback {
  display: inline-flex;
}

.mobile-consult-banner {
  display: none;
}

/* =============================================
   Responsive
============================================= */
@media (min-width: 1025px) {
  .hero__lead { white-space: nowrap; }
}

@media (max-width: 1024px) {
  :root { --section-pad: 80px; }

  .about__inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .about__photo { justify-content: center; }

  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .works__grid    { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid  { grid-template-columns: repeat(3, 1fr); }
  .flow__steps    { grid-template-columns: repeat(2, 1fr); }
  .flow-step:not(:last-child)::after { display: none; }

  .contact__inner { grid-template-columns: 1fr; }

  .hero__visual { display: none; }
  .hero__content { max-width: 100%; margin-left: 0; padding: 120px 24px 80px; text-align: center; }
  .hero__lead { margin-left: auto; margin-right: auto; }
  .hero__buttons { justify-content: center; }
}

@media (max-width: 768px) {
  :root { --section-pad: 64px; }

  body { padding-bottom: 82px; }

  /* Mobile Nav */
  .hamburger { display: flex; }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right 0.4s ease;
    z-index: 999;
  }
  .nav.open { right: 0; }

  .nav__list { flex-direction: column; gap: 32px; text-align: center; }
  .nav__link { font-size: 1rem; }

  .services__grid { grid-template-columns: 1fr; }
  .audience__grid,
  .pricing__grid,
  .flow__steps { grid-template-columns: 1fr; }

  .audience-card,
  .price-card,
  .flow-step { padding: 28px 24px; }

  .works .container {
    padding-right: 0;
  }

  .works__grid {
    display: flex;
    gap: 18px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 4px 24px 18px 0;
    -webkit-overflow-scrolling: touch;
  }

  .works__grid::-webkit-scrollbar {
    height: 6px;
  }

  .works__grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 999px;
  }

  .works__grid::-webkit-scrollbar-thumb {
    background: rgba(0, 229, 255, 0.36);
    border-radius: 999px;
  }

  .work-card {
    flex: 0 0 min(84vw, 420px);
    min-height: 300px;
    scroll-snap-align: start;
    padding: 36px 28px;
  }

  .expertise { padding: 24px; }
  .expertise__mascot {
    width: 160px;
    opacity: 0.28;
  }
  .expertise__grid {
    grid-template-columns: 1fr;
    padding-right: 0;
  }

  .contact__form { padding: 32px 24px; }

  .footer__inner { justify-content: center; }
  .footer__nav   { justify-content: center; flex-wrap: wrap; gap: 16px; }

  .hero__content { padding: 100px 24px 60px; }

  .mobile-consult-banner {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: 14px;
    z-index: 1002;
    min-height: 58px;
    padding: 10px 18px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.96), rgba(30, 144, 255, 0.96));
    color: #07111a;
    font-weight: 700;
    box-shadow: 0 0 28px rgba(0, 229, 255, 0.48), 0 14px 36px rgba(0, 0, 0, 0.36);
  }

  .mobile-consult-banner span,
  .mobile-consult-banner strong {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    line-height: 1.3;
  }

  .mobile-consult-banner strong {
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(7, 17, 26, 0.12);
    font-size: 0.78rem;
    white-space: nowrap;
  }

  #dify-chatbot-bubble-button {
    bottom: 5.3rem !important;
  }

  .chatbot-fallback {
    right: 16px;
    bottom: 88px;
  }
}

@media (max-width: 480px) {
  .hero__buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }

  .about__photo-wrap { width: 200px; height: 200px; }

  .line-card {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .line-card__content { align-items: center; }
  .line-card__mascot { width: 120px; }

  .pricing__notice {
    margin-top: -18px;
    align-items: flex-start;
  }

  .work-card {
    flex-basis: 86vw;
  }

  .mobile-consult-banner {
    left: 10px;
    right: 10px;
    padding: 9px 14px;
  }

  .mobile-consult-banner span {
    font-size: 0.9rem;
  }

  #dify-chatbot-bubble-window {
    right: 0.75rem !important;
    bottom: 5.5rem !important;
    width: calc(100vw - 24px) !important;
    height: min(34rem, calc(100vh - 142px)) !important;
  }
}