/* ==========================================================
   Sippo Brand Site — 明るく・あたたかく・少し未来。
   ========================================================== */

:root {
  /* ベース */
  --c-bg:        #FFFDF7;
  --c-cream:     #FFF6E9;
  --c-ivory:     #FBF4E6;
  --c-ink:       #2D2A26;
  --c-ink-soft:  #6B645B;
  --c-line:      #3A3633;

  /* アクセント */
  --c-sky:       #38BDF8;
  --c-sky-deep:  #0EA5E9;
  --c-teal:      #2DD4BF;
  --c-teal-deep: #14B8A6;
  --c-mint:      #99F6E4;

  /* 差し色 */
  --c-gold:      #F5C542;
  --c-orange:    #FB923C;

  --grad-main:   linear-gradient(120deg, var(--c-sky) 0%, var(--c-teal) 55%, var(--c-mint) 100%);
  --grad-warm:   linear-gradient(120deg, var(--c-gold), var(--c-orange));

  --shadow-soft: 0 8px 30px rgba(45, 42, 38, .08);
  --shadow-card: 0 20px 60px rgba(45, 42, 38, .10);
  --shadow-pop:  0 30px 80px rgba(14, 165, 233, .18);

  --radius: 24px;
  --radius-lg: 36px;

  --font: 'M PLUS Rounded 1c', 'Hiragino Maru Gothic ProN', 'Yu Gothic', system-ui, sans-serif;

  --ease-bounce: cubic-bezier(.34, 1.56, .64, 1);
  --ease-smooth: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-weight: 500;
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
section { scroll-margin-top: 90px; }

.container { width: min(1120px, 100% - 48px); margin-inline: auto; }
.sp-only { display: none; }

/* ---------- 共通：ガラス ---------- */
.glass {
  background: rgba(255, 255, 255, .65);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: var(--shadow-soft);
}

/* ---------- 共通：グラデ文字 ---------- */
.grad-text {
  font-style: normal;
  background: linear-gradient(120deg, var(--c-sky-deep), var(--c-teal-deep) 60%, var(--c-orange));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 共通：ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1rem;
  transition: transform .35s var(--ease-bounce), box-shadow .35s ease;
  will-change: transform;
}
.btn svg { width: 20px; height: 20px; transition: transform .3s var(--ease-bounce); }
.btn:hover svg { transform: translateX(5px); }
.btn--primary {
  color: #fff;
  background: var(--grad-main);
  background-size: 160% 160%;
  box-shadow: 0 12px 30px rgba(20, 184, 166, .35);
}
.btn--primary:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 18px 40px rgba(20, 184, 166, .45);
  background-position: 100% 50%;
}
.btn--primary:active { transform: translateY(-1px) scale(.99); }
.btn--ghost {
  color: var(--c-ink);
  background: rgba(255, 255, 255, .7);
  border: 2px solid rgba(45, 42, 38, .12);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover { transform: translateY(-4px); border-color: var(--c-teal); box-shadow: var(--shadow-soft); }
.btn--lg { padding: 20px 44px; font-size: 1.15rem; }

/* ---------- 共通：セクション ---------- */
.section { padding: 110px 0; position: relative; }
.section--cream { background: var(--c-cream); }
.section__label {
  display: inline-block;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-teal-deep);
  background: rgba(45, 212, 191, .12);
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section__title {
  font-size: clamp(1.7rem, 4.2vw, 2.7rem);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.section__lead { color: var(--c-ink-soft); margin-bottom: 56px; font-size: 1.04rem; }

/* ---------- 波の区切り ---------- */
.wave { line-height: 0; background: var(--c-bg); }
.wave svg { width: 100%; height: 70px; }
.wave--flip { background: var(--c-cream); }
.wave--flip svg { transform: rotate(180deg); }
.wave--flip svg path { fill: #FFFDF7; }

/* ---------- マウス追従グロー ---------- */
.cursor-glow {
  position: fixed;
  top: -300px; left: -300px;
  width: 600px; height: 600px;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle,
    rgba(56, 189, 248, .10) 0%,
    rgba(45, 212, 191, .07) 35%,
    transparent 70%);
  border-radius: 50%;
  will-change: transform;
}

/* ==========================================================
   Header
   ========================================================== */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  transition: background .35s ease, box-shadow .35s ease, backdrop-filter .35s ease;
}
.header.is-scrolled {
  background: rgba(255, 253, 247, .8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px rgba(45, 42, 38, .07);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav__brand { display: flex; align-items: center; gap: 10px; }
.nav__logo { width: 38px; height: 38px; border-radius: 50%; box-shadow: 0 2px 8px rgba(45, 42, 38, .15); transition: transform .4s var(--ease-bounce); }
.nav__brand:hover .nav__logo { transform: rotate(-10deg) scale(1.1); }
.nav__name { font-size: 1.35rem; font-weight: 800; letter-spacing: .03em; }
.nav__menu { display: flex; align-items: center; gap: 30px; font-weight: 700; font-size: .94rem; }
.nav__menu a { position: relative; padding: 6px 2px; }
.nav__menu a:not(.nav__cta)::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 3px;
  border-radius: 3px;
  background: var(--grad-main);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s var(--ease-smooth);
}
.nav__menu a:not(.nav__cta):hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta {
  color: #fff;
  background: var(--grad-main);
  padding: 10px 22px;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(20, 184, 166, .3);
  transition: transform .3s var(--ease-bounce), box-shadow .3s ease;
}
.nav__cta:hover { transform: translateY(-2px) scale(1.04); box-shadow: 0 10px 24px rgba(20, 184, 166, .4); }
.nav__toggle { display: none; }

/* ==========================================================
   ① Hero
   ========================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 130px 0 80px;
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: -1; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
  will-change: transform;
  animation: blobFloat 14s ease-in-out infinite alternate;
}
.blob--sky  { width: 520px; height: 520px; top: -120px; right: -100px; background: radial-gradient(circle, #BAE6FD, #7DD3FC); }
.blob--mint { width: 440px; height: 440px; bottom: -80px; left: -120px; background: radial-gradient(circle, var(--c-mint), #5EEAD4); animation-delay: -5s; }
.blob--gold { width: 320px; height: 320px; top: 38%; left: 34%; background: radial-gradient(circle, #FDE68A, #FCD34D); opacity: .4; animation-delay: -9s; }
@keyframes blobFloat {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, -30px) scale(1.08); }
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(45, 212, 191, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 212, 191, .06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 40px;
}

/* コピー */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  font-weight: 700;
  background: rgba(255, 255, 255, .8);
  border: 1px solid rgba(45, 212, 191, .35);
  padding: 8px 20px;
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  margin-bottom: 26px;
}
.hero__badge-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--c-teal);
  animation: pulseDot 2s ease infinite;
}
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, .5); }
  50%      { box-shadow: 0 0 0 8px rgba(45, 212, 191, 0); }
}
.hero__title {
  font-size: clamp(2.5rem, 6.2vw, 4.4rem);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: .02em;
  margin-bottom: 26px;
}
.hero__line { display: block; overflow: hidden; }
.hero__line span {
  display: inline-block;
  transform: translateY(110%);
  animation: lineUp .9s var(--ease-smooth) forwards;
}
.hero__line:nth-child(2) span { animation-delay: .12s; }
.hero__line:nth-child(3) span { animation-delay: .24s; }
@keyframes lineUp { to { transform: translateY(0); } }
.hero__sub { color: var(--c-ink-soft); font-size: 1.08rem; margin-bottom: 36px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 30px; }
.hero__trust { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: .9rem; font-weight: 700; color: var(--c-ink-soft); }

/* マスコットステージ */
.hero__mascot { position: relative; display: grid; place-items: center; min-height: 460px; }
.mascot-ring {
  position: absolute;
  width: min(440px, 88%);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,.95), rgba(255,255,255,.35) 60%),
    conic-gradient(from 180deg, rgba(56,189,248,.25), rgba(45,212,191,.25), rgba(245,197,66,.22), rgba(56,189,248,.25));
  border: 1.5px solid rgba(255, 255, 255, .9);
  box-shadow:
    inset 0 0 60px rgba(255, 255, 255, .8),
    0 30px 90px rgba(56, 189, 248, .18);
  animation: ringBreath 6s ease-in-out infinite;
}
@keyframes ringBreath {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.035); }
}
.mascot-wrap {
  position: relative;
  display: grid;
  place-items: center;
  width: min(360px, 76%);
  aspect-ratio: 380 / 360;
  background: transparent;
  cursor: pointer;
  transition: transform .4s var(--ease-bounce);
  will-change: transform;
  z-index: 1;
}
.mascot-wrap:hover { transform: scale(1.04); }

.sippo-mascot {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
  border: none;
  box-shadow: none;
  opacity: 1;
  transform: scale(1);
  transition: opacity .25s ease, transform .25s var(--ease-smooth);
  user-select: none;
  -webkit-user-drag: none;
  cursor: pointer;
  will-change: opacity, transform;
  animation: mascotFloat 5.2s ease-in-out infinite;
}

.sippo-mascot.is-changing {
  opacity: 0;
  transform: scale(.96);
}

.sippo-mascot.is-pop {
  animation: sippoPop .35s ease;
}

.sippo-mascot[data-state="happy"] {
  animation: mascotHappy .62s var(--ease-bounce);
}

.sippo-mascot[data-state="thinking"] {
  animation: sippoThinking 1.2s ease-in-out infinite;
}

.sippo-mascot[data-state="sleepy"] {
  transform: translateY(5px) scale(.985);
}

.sippo-mascot[data-state="surprised"] {
  transform: scale(1.045);
}

@keyframes mascotFloat {
  0%, 100% { translate: 0 0; }
  50%      { translate: 0 -13px; }
}

@keyframes mascotHappy {
  0%   { transform: translateY(0) scale(1) rotate(0); }
  35%  { transform: translateY(-12px) scale(1.06) rotate(2deg); }
  70%  { transform: translateY(2px) scale(.98) rotate(-2deg); }
  100% { transform: translateY(0) scale(1) rotate(0); }
}

@keyframes sippoThinking {
  0%, 100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-5px) scale(1.012); }
}

@keyframes sippoPop {
  0%   { transform: scale(1) rotate(0deg); }
  35%  { transform: scale(1.08) rotate(-3deg); }
  70%  { transform: scale(.98) rotate(2deg); }
  100% { transform: scale(1) rotate(0deg); }
}

.mascot__hint {
  position: absolute;
  bottom: 6px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--c-ink-soft);
  opacity: .8;
  animation: hintFade 3s ease-in-out infinite;
}
@keyframes hintFade { 0%, 100% { opacity: .45; } 50% { opacity: .95; } }

/* なでた時のハート */
/* 浮遊チップ */
.chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: .86rem;
  font-weight: 800;
  padding: 11px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, .95);
  box-shadow: var(--shadow-card);
  white-space: nowrap;
  z-index: 2;
}
.chip__icon {
  display: grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 9px;
  font-size: .9rem;
}
.chip__icon--sky  { background: rgba(56, 189, 248, .18); }
.chip__icon--teal { background: rgba(45, 212, 191, .18); }
.chip__icon--gold { background: rgba(245, 197, 66, .22); }
.chip--1 { top: 8%; left: -4%; }
.chip--2 { top: 36%; right: -7%; }
.chip--3 { bottom: 13%; left: -1%; }
.float-1 { animation: chipFloat 6s ease-in-out infinite; }
.float-2 { animation: chipFloat 7s ease-in-out -2s infinite; }
.float-3 { animation: chipFloat 5.5s ease-in-out -4s infinite; }
@keyframes chipFloat {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50%      { transform: translateY(-16px) rotate(1.5deg); }
}

/* スクロールインジケータ */
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--c-ink-soft);
}
.hero__scroll-text { font-size: .72rem; font-weight: 800; letter-spacing: .3em; text-transform: uppercase; }
.hero__scroll-bar {
  width: 2px; height: 44px;
  background: rgba(45, 42, 38, .15);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.hero__scroll-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-main);
  animation: scrollDrop 1.8s var(--ease-smooth) infinite;
}
@keyframes scrollDrop {
  0%   { transform: translateY(-100%); }
  60%  { transform: translateY(0); }
  100% { transform: translateY(100%); }
}

/* ==========================================================
   ② Services
   ========================================================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .85);
  border: 1px solid rgba(255, 255, 255, 1);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow .45s ease;
  transform-style: preserve-3d;
  will-change: transform;
  position: relative;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 2px;
  background: var(--grad-main);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .4s ease;
  pointer-events: none;
}
.service-card[data-accent="gold"]::before { background: var(--grad-warm); }
.service-card:hover::before { opacity: 1; }
.service-card:hover { box-shadow: var(--shadow-pop); }

.service-card__visual {
  padding: 28px 28px 0;
  background: linear-gradient(180deg, rgba(56, 189, 248, .10), transparent);
}
.service-card[data-accent="teal"] .service-card__visual { background: linear-gradient(180deg, rgba(45, 212, 191, .12), transparent); }
.service-card[data-accent="gold"] .service-card__visual { background: linear-gradient(180deg, rgba(245, 197, 66, .14), transparent); }

/* ミニUIモック（実サイトと同じダーク＋ネオン配色のプレビュー） */
.mini-ui {
  background: #fff;
  border-radius: 18px 18px 0 0;
  border: 1px solid rgba(45, 42, 38, .08);
  border-bottom: none;
  box-shadow: 0 -8px 30px rgba(45, 42, 38, .05);
  padding: 14px 18px 20px;
  min-height: 158px;
  transform: translateZ(30px);
}
.mini-ui--dark {
  background: linear-gradient(165deg, #101a30, #07111f);
  border-color: rgba(255, 255, 255, .12);
  box-shadow: 0 -8px 30px rgba(7, 17, 31, .25);
}
.mini-ui--dark .bar-chart__row { color: #dbe3f3; }
.mini-ui--dark .bar {
  background: linear-gradient(135deg, #19e3ff, #7b61ff);
  box-shadow: 0 0 14px rgba(25, 227, 255, .45);
}
.mini-ui--dark .check-list { color: #dbe3f3; }
.mini-ui--dark .check-item__box {
  background: linear-gradient(135deg, #19e3ff, #7b61ff);
  color: #07111f;
}
.mini-ui--dark .check-item--result { color: #19e3ff; }
.mini-ui--dark .game-ui__fps {
  background: linear-gradient(135deg, #19e3ff, #7b61ff);
  -webkit-background-clip: text;
  background-clip: text;
  text-shadow: 0 0 24px rgba(123, 97, 255, .35);
}
.mini-ui--dark .game-ui__tags i {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  color: #dbe3f3;
}
.mini-ui__dots { display: flex; gap: 6px; margin-bottom: 14px; }
.mini-ui__dots i { width: 9px; height: 9px; border-radius: 50%; background: rgba(45, 42, 38, .12); }
.mini-ui__dots i:first-child { background: var(--c-orange); }
.mini-ui__dots i:nth-child(2) { background: var(--c-gold); }
.mini-ui__dots i:last-child  { background: var(--c-teal); }

.bar-chart__row {
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: .74rem;
  font-weight: 800;
  color: var(--c-ink-soft);
}
.bar {
  height: 14px;
  border-radius: 7px;
  background: var(--grad-main);
  width: var(--w);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s var(--ease-smooth);
}
.is-visible .bar { transform: scaleX(1); }
.bar-chart__row:nth-child(2) .bar { transition-delay: .15s; }
.bar-chart__row:nth-child(3) .bar { transition-delay: .3s; }

.check-list { font-size: .82rem; font-weight: 700; }
.check-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 5px 0;
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity .5s ease, transform .5s var(--ease-smooth);
}
.is-visible .check-item { opacity: 1; transform: translateX(0); }
.check-item:nth-child(2) { transition-delay: .15s; }
.check-item:nth-child(3) { transition-delay: .3s; }
.check-item:nth-child(4) { transition-delay: .5s; }
.check-item__box {
  display: grid;
  place-items: center;
  width: 20px; height: 20px;
  border-radius: 6px;
  background: var(--c-teal);
  color: #fff;
  font-size: .7rem;
}
.check-item--result { color: var(--c-teal-deep); font-weight: 800; }

.game-ui { text-align: center; }
.game-ui__fps {
  font-size: 2.4rem;
  font-weight: 800;
  background: var(--grad-warm);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
  margin: 4px 0 10px;
}
.game-ui__fps span { font-size: .9rem; margin-left: 4px; }
.game-ui__tags { display: flex; flex-wrap: wrap; gap: 7px; justify-content: center; }
.game-ui__tags i {
  font-style: normal;
  font-size: .72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(45, 42, 38, .06);
}

.service-card__body { padding: 26px 28px 30px; display: flex; flex-direction: column; flex: 1; }
.service-card__tags { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.service-card__tag {
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--c-teal-deep);
  background: rgba(45, 212, 191, .14);
  padding: 4px 12px;
  border-radius: 999px;
}
.service-card__num {
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .06em;
  color: var(--c-ink-soft);
  background: rgba(45, 42, 38, .06);
  padding: 4px 12px;
  border-radius: 999px;
}
.service-card__name { font-size: 1.3rem; font-weight: 800; letter-spacing: .04em; margin-bottom: 10px; }
.service-card__desc { font-size: .92rem; color: var(--c-ink-soft); margin-bottom: 14px; flex: 1; }
.service-card__url {
  font-family: Consolas, 'Courier New', monospace;
  font-size: .72rem;
  color: var(--c-ink-soft);
  opacity: .7;
  margin-bottom: 14px;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: .95rem;
  color: var(--c-sky-deep);
}
.service-card[data-accent="teal"] .service-card__link { color: var(--c-teal-deep); }
.service-card[data-accent="gold"] .service-card__link { color: var(--c-orange); }
.service-card__link svg { width: 18px; height: 18px; transition: transform .3s var(--ease-bounce); }
.service-card:hover .service-card__link svg { transform: translateX(6px); }

.services__note {
  margin-top: 36px;
  text-align: center;
  font-size: .9rem;
  color: var(--c-ink-soft);
}
.services__note b { color: var(--c-ink); }

/* ==========================================================
   ③ PC相談（フロー）
   ========================================================== */
.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 18px;
  margin-bottom: 56px;
  counter-reset: step;
}
.flow__step {
  background: #fff;
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(45, 42, 38, .05);
  text-align: center;
  transition: transform .4s var(--ease-bounce), box-shadow .4s ease;
  transition-delay: calc(var(--i) * 60ms);
}
.flow__step:hover { transform: translateY(-8px); box-shadow: var(--shadow-pop); }
.flow__num {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .2em;
  color: var(--c-ink-soft);
  margin-bottom: 16px;
}
.flow__icon {
  width: 72px; height: 72px;
  margin: 0 auto 18px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  transition: transform .4s var(--ease-bounce);
}
.flow__step:hover .flow__icon { transform: scale(1.12) rotate(-5deg); }
.flow__icon svg { width: 42px; height: 42px; }
.flow__icon--sky  { background: rgba(56, 189, 248, .15); color: var(--c-sky-deep); }
.flow__icon--teal { background: rgba(45, 212, 191, .15); color: var(--c-teal-deep); }
.flow__icon--gold { background: rgba(245, 197, 66, .2);  color: var(--c-orange); }
.flow__name { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; }
.flow__desc { font-size: .88rem; color: var(--c-ink-soft); margin-bottom: 16px; }
.flow__link { font-weight: 800; font-size: .9rem; color: var(--c-teal-deep); }
.flow__link:hover { text-decoration: underline; }
.flow__link--soon { color: var(--c-ink-soft); opacity: .75; }
.flow__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: .84rem;
  color: var(--c-ink);
  background: rgba(45, 212, 191, .12);
  border: 1.5px dashed rgba(20, 184, 166, .5);
  border-radius: 999px;
  padding: 9px 18px;
  margin-bottom: 12px;
  transition: transform .3s var(--ease-bounce), background .25s ease, border-color .25s ease;
}
.flow__copy:hover { transform: translateY(-2px); background: rgba(45, 212, 191, .2); }
.flow__copy + .flow__link { display: block; }
.flow__copy.is-copied {
  background: var(--c-teal);
  border-color: var(--c-teal);
  color: #fff;
}
.flow__contacts {
  display: grid;
  gap: 8px;
}
.flow__contact {
  display: block;
  font-weight: 800;
  font-size: .88rem;
  color: var(--c-teal-deep);
  line-height: 1.45;
}
.flow__contact:hover { text-decoration: underline; }
.flow__arrow {
  display: grid;
  place-items: center;
  color: var(--c-teal);
}
.flow__arrow svg { width: 30px; height: 30px; animation: arrowNudge 1.6s ease-in-out infinite; }
@keyframes arrowNudge {
  0%, 100% { transform: translateX(0); opacity: .6; }
  50%      { transform: translateX(7px); opacity: 1; }
}

.consult__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px;
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  text-align: center;
}
.consult__paw { width: 48px; height: 48px; animation: pawWiggle 3s ease-in-out infinite; }
@keyframes pawWiggle {
  0%, 100% { transform: rotate(-8deg); }
  50%      { transform: rotate(10deg); }
}
.consult__cta-text { font-size: 1.05rem; }
.consult__cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

/* 追従の相談ボタン */
.consult-fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 20px 10px 12px;
  border-radius: 999px;
  font-weight: 800;
  font-size: .92rem;
  color: var(--c-ink);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1.5px solid rgba(45, 212, 191, .45);
  box-shadow: 0 12px 34px rgba(20, 184, 166, .28);
  opacity: 0;
  transform: translateY(16px) scale(.9);
  pointer-events: none;
  transition: opacity .4s ease, transform .4s var(--ease-bounce);
}
.consult-fab img { width: 34px; height: 34px; border-radius: 50%; }
.consult-fab.is-shown { opacity: 1; transform: none; pointer-events: auto; }
.consult-fab:hover { transform: translateY(-3px) scale(1.04); box-shadow: 0 16px 40px rgba(20, 184, 166, .4); }

/* ==========================================================
   ④ Why Sippo
   ========================================================== */
.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 64px;
}
.why-card {
  border-radius: var(--radius);
  padding: 32px 26px;
  transition: transform .45s var(--ease-bounce), box-shadow .45s ease;
  transition-delay: calc(var(--i) * 70ms);
}
.why-card:hover { transform: translateY(-10px) rotate(-.5deg); box-shadow: var(--shadow-pop); }
.why-card__icon {
  width: 60px; height: 60px;
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  border-radius: 20px;
  margin-bottom: 18px;
  transition: transform .4s var(--ease-bounce);
}
.why-card:hover .why-card__icon { transform: scale(1.15) rotate(8deg); }
.why-card__icon--sky    { background: rgba(56, 189, 248, .15); }
.why-card__icon--teal   { background: rgba(45, 212, 191, .15); }
.why-card__icon--gold   { background: rgba(245, 197, 66, .2); }
.why-card__icon--orange { background: rgba(251, 146, 60, .16); }
.why-card__icon--pink   { background: rgba(244, 114, 182, .16); }
.why-card__title { font-size: 1.08rem; font-weight: 800; margin-bottom: 10px; }
.why-card__desc { font-size: .88rem; color: var(--c-ink-soft); }

/* 実績カウンター */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-card);
  text-align: center;
}
.stats__item dt { font-size: .82rem; font-weight: 700; color: var(--c-ink-soft); margin-bottom: 6px; }
.stats__item dd b {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(120deg, var(--c-sky-deep), var(--c-teal-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stats__item dd span { display: block; font-size: .78rem; font-weight: 700; color: var(--c-ink-soft); }

/* ==========================================================
   ⑤ Roadmap（あしあとトレイル）
   ========================================================== */
.trail { position: relative; max-width: 780px; margin-inline: auto; }
.trail__path {
  position: absolute;
  inset: 0;
  width: 100px;
  left: 50%;
  transform: translateX(-50%);
  height: 100%;
}
.trail__items { position: relative; display: grid; gap: 64px; }
.trail__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 0 90px;
}
.trail__item:nth-child(odd)  .trail__card { grid-column: 1; }
.trail__item:nth-child(even) .trail__card { grid-column: 2; grid-row: 1; }
.trail__marker {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 58px; height: 58px;
  display: grid;
  place-items: center;
  font-size: 1.45rem;
  background: #fff;
  border: 3px solid var(--c-mint);
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(45, 212, 191, .25);
  z-index: 1;
  transition: transform .4s var(--ease-bounce), border-color .3s ease;
}
.trail__item:hover .trail__marker { transform: translateX(-50%) scale(1.18) rotate(8deg); border-color: var(--c-teal); }
.trail__marker--done { border-color: var(--c-teal); background: var(--c-mint); }
.trail__card {
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: transform .4s var(--ease-bounce), box-shadow .4s ease;
}
.trail__card:hover { transform: translateY(-6px); box-shadow: var(--shadow-pop); }
.trail__head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.trail__when { font-size: .74rem; font-weight: 800; letter-spacing: .08em; color: var(--c-ink-soft); }
.trail__card h3 { font-size: 1.12rem; font-weight: 800; margin: 8px 0 8px; }
.trail__card p { font-size: .88rem; color: var(--c-ink-soft); }
.trail__todo { margin-top: 12px; display: grid; gap: 6px; }
.trail__todo li {
  position: relative;
  padding-left: 22px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--c-ink-soft);
}
.trail__todo li::before {
  content: '🐾';
  position: absolute;
  left: 0;
  top: 0;
  font-size: .72rem;
}
.trail__status {
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .12em;
  padding: 4px 14px;
  border-radius: 999px;
}
.trail__status--done   { background: rgba(45, 212, 191, .18); color: var(--c-teal-deep); }
.trail__status--next   { background: rgba(56, 189, 248, .16); color: var(--c-sky-deep); }
.trail__status--future { background: rgba(245, 197, 66, .2);  color: #B97D12; }

/* ==========================================================
   Final CTA
   ========================================================== */
.final-cta { padding: 50px 0 120px; }
.final-cta__box {
  position: relative;
  text-align: center;
  border-radius: 44px;
  padding: 76px 40px;
  background:
    radial-gradient(ellipse 80% 100% at 50% 0%, rgba(153, 246, 228, .5), transparent),
    linear-gradient(160deg, #E0F6FF, #E9FCF7 55%, #FFF6E0);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.final-cta__box::before, .final-cta__box::after {
  content: '🐾';
  position: absolute;
  font-size: 5rem;
  opacity: .12;
  transform: rotate(-20deg);
}
.final-cta__box::before { top: 10%; left: 6%; }
.final-cta__box::after { bottom: 8%; right: 6%; transform: rotate(15deg); }
.final-cta__dog { width: 76px; height: 76px; margin: 0 auto 22px; border-radius: 50%; box-shadow: 0 8px 24px rgba(45, 42, 38, .18); animation: mascotBob 4s ease-in-out infinite; }
.final-cta__title { font-size: clamp(1.5rem, 3.6vw, 2.2rem); font-weight: 800; margin-bottom: 12px; }
.final-cta__sub { color: var(--c-ink-soft); margin-bottom: 32px; }

/* ==========================================================
   Footer
   ========================================================== */
.footer {
  background: linear-gradient(180deg, var(--c-cream), #FBEED9);
  padding-top: 70px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 50px;
  padding-bottom: 56px;
}
.footer__logo { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.footer__logo span { color: var(--c-teal); }
.footer__tagline { font-size: .88rem; color: var(--c-ink-soft); }
.footer__nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.footer__col h3 {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-teal-deep);
  margin-bottom: 16px;
}
.footer__col li { margin-bottom: 10px; }
.footer__col a { font-size: .92rem; font-weight: 700; transition: color .25s ease; }
.footer__col a:hover { color: var(--c-teal-deep); }
.footer__bottom {
  border-top: 1px solid rgba(45, 42, 38, .08);
  padding: 22px 0;
  text-align: center;
  font-size: .8rem;
  color: var(--c-ink-soft);
}

/* ==========================================================
   スクロールリビール
   ========================================================== */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .9s var(--ease-smooth), transform .9s var(--ease-smooth);
  transition-delay: calc(var(--i, 0) * 90ms);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 30px 18px; }
  .flow { grid-template-columns: 1fr; }
  .flow__arrow svg { transform: rotate(90deg); animation: none; }
}

@media (max-width: 820px) {
  .sp-only { display: inline; }
  .container { width: min(1120px, 100% - 40px); }
  .section { padding: 84px 0; }

  /* Nav → ドロワー */
  .nav__toggle {
    display: grid;
    gap: 5.5px;
    padding: 10px;
    z-index: 110;
  }
  .nav__toggle span {
    width: 24px; height: 2.5px;
    border-radius: 2px;
    background: var(--c-ink);
    transition: transform .35s var(--ease-smooth), opacity .25s ease;
  }
  .nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .nav__menu {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 34px;
    font-size: 1.2rem;
    background: rgba(255, 253, 247, .96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s ease;
  }
  .nav__menu.is-open { opacity: 1; pointer-events: auto; }

  /* Hero */
  .hero { padding: 110px 0 90px; min-height: auto; }
  .hero__inner { grid-template-columns: 1fr; gap: 26px; }
  .hero__copy { text-align: center; }
  .hero__actions, .hero__trust { justify-content: center; }
  .hero__mascot { min-height: 400px; order: 2; }
  .chip { font-size: .76rem; padding: 9px 14px; }
  .chip--1 { left: 0; top: 4%; }
  .chip--2 { right: 0; top: 30%; }
  .chip--3 { left: 4%; bottom: 10%; }
  .blob--sky { width: 350px; height: 350px; }
  .blob--mint { width: 300px; height: 300px; }

  /* Roadmap → 左寄せタイムライン */
  .trail__path { left: 29px; transform: none; width: 60px; }
  .trail__items { gap: 40px; }
  .trail__item { grid-template-columns: 1fr; padding-left: 76px; }
  .trail__item:nth-child(even) .trail__card { grid-column: 1; }
  .trail__marker { left: 29px; width: 50px; height: 50px; font-size: 1.2rem; }
  .trail__item:hover .trail__marker { transform: translateX(-50%) scale(1.1); }

  .footer__inner { grid-template-columns: 1fr; gap: 36px; }
  .footer__nav { grid-template-columns: 1fr 1fr; }
  .consult__cta { flex-direction: column; }
}

@media (max-width: 480px) {
  .why__grid { grid-template-columns: 1fr; }
  .btn { padding: 15px 26px; font-size: .95rem; }
  .hero__title { font-size: clamp(2.1rem, 11vw, 2.8rem); }
  .stats { padding: 30px 18px; }
  .stats__item dd b { font-size: 2rem; }
}

/* ==========================================================
   Reduced Motion
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .hero__line span { transform: none; }
  .cursor-glow { display: none; }
}