@charset "UTF-8";

:root {
  color-scheme: light;
  --gb-bg: #f7f8fc;
  --gb-surface: #ffffff;
  --gb-surface-2: #f5f9ff;
  --gb-line: rgba(28, 58, 120, 0.14);
  --gb-text: #152340;
  --gb-muted: #64758d;
  --gb-primary: #1f4fd6;
  --gb-primary-strong: #10234e;
  --gb-accent: #4ac3ff;
  --gb-accent-2: #69d7c9;
  --gb-shadow: 0 28px 60px rgba(17, 42, 92, 0.12);
  --gb-font: "Outfit", "Satoshi", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(74, 195, 255, 0.16), transparent 24rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(247, 248, 252, 0.96)),
    var(--gb-bg);
  color: var(--gb-text);
  font-family: var(--gb-font);
  line-height: 1.7;
  overflow-x: hidden;
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; }
svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}
[hidden] { display: none !important; }

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.shell--narrow {
  width: min(760px, calc(100% - 40px));
}

.gb-app {
  min-height: 100dvh;
  background:
    linear-gradient(90deg, rgba(31, 79, 214, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(31, 79, 214, 0.04) 1px, transparent 1px),
    var(--gb-bg);
  background-size: 56px 56px, 56px 56px, auto;
}

.hero {
  position: relative;
  min-height: 720px;
  padding: 104px 0 76px;
  overflow: hidden;
}

.hero__pulse {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(74, 195, 255, 0.18), transparent 16rem),
    radial-gradient(circle at 86% 22%, rgba(105, 215, 201, 0.15), transparent 18rem);
  pointer-events: none;
}

.hero__layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(400px, 0.95fr);
  align-items: center;
  gap: 56px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--gb-primary);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid rgba(31, 79, 214, 0.15);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
}

.eyebrow span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--gb-accent);
  box-shadow: 0 0 0 6px rgba(74, 195, 255, 0.16);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  font-weight: 950;
  letter-spacing: -.085em;
  line-height: .94;
}

.hero h1 span { display: block; }

.hero__accent {
  margin: 20px 0 0;
  color: var(--gb-primary-strong);
  font-size: clamp(1.2rem, 2.4vw, 1.74rem);
  font-weight: 900;
  letter-spacing: -.04em;
}

.hero__lead {
  max-width: 42rem;
  margin: 22px 0 0;
  color: #2b4263;
  font-size: 1.08rem;
  font-weight: 700;
}

.hero__detail {
  max-width: 43rem;
  margin: 16px 0 0;
  color: var(--gb-muted);
  font-size: .96rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 900;
  letter-spacing: -.02em;
  text-decoration: none;
  transition: transform .28s cubic-bezier(.16,1,.3,1), background .28s cubic-bezier(.16,1,.3,1), border-color .28s cubic-bezier(.16,1,.3,1);
}

.button:active { transform: translateY(1px) scale(.99); }
.button svg { width: 18px; height: 18px; }

.button--primary {
  background: var(--gb-primary);
  color: #fff;
  box-shadow: 0 18px 36px rgba(31, 79, 214, 0.2);
}

.button--primary:hover { background: #153da9; }

.button--large {
  min-height: 58px;
  padding: 0 26px;
}

.button--ghost {
  background: #fff;
  border-color: var(--gb-line);
  color: #24425e;
}

.button--ghost:hover {
  border-color: rgba(31, 79, 214, 0.3);
  color: var(--gb-primary-strong);
}

.privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--gb-muted);
  font-size: .9rem;
  font-weight: 700;
}

.privacy-note svg { width: 18px; height: 18px; }

.hero-scene {
  position: relative;
  min-height: 540px;
  border-radius: 42px;
  background: linear-gradient(145deg, rgba(255,255,255,.88), rgba(239,245,255,.9));
  border: 1px solid rgba(31, 79, 214, 0.14);
  box-shadow: var(--gb-shadow), inset 0 1px 0 rgba(255,255,255,.86);
  overflow: hidden;
}

.hero-scene__orbit {
  position: absolute;
  border: 1px solid rgba(31, 79, 214, 0.16);
  border-radius: 50%;
}

.hero-scene__orbit--one {
  inset: 58px 34px 82px;
  transform: rotate(-10deg);
}

.hero-scene__orbit--two {
  inset: 118px 92px 138px;
  border-style: dashed;
  transform: rotate(14deg);
}

.hero-bud {
  position: absolute;
  display: grid;
  align-content: end;
  gap: 8px;
  width: 172px;
  height: 228px;
  padding: 24px 22px;
  border-radius: 38px;
  color: #fff;
  box-shadow: 0 24px 38px rgba(18, 46, 98, 0.18);
}

.hero-bud::before,
.hero-bud::after {
  position: absolute;
  content: "";
}

.hero-bud::before {
  top: 26px;
  left: 50%;
  width: 72px;
  height: 104px;
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.92);
  transform: translateX(-50%);
}

.hero-bud::after {
  top: 126px;
  left: 50%;
  width: 24px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  transform: translateX(-50%);
}

.hero-bud b,
.hero-bud span {
  position: relative;
  z-index: 1;
}

.hero-bud b {
  font-size: 1.65rem;
  letter-spacing: .04em;
}

.hero-bud span {
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .12em;
  opacity: .9;
}

.hero-bud--pro {
  top: 82px;
  left: 34px;
  transform: rotate(-10deg);
  background: linear-gradient(150deg, #132d60, #255fd8 60%, #65d1ff);
}

.hero-bud--core {
  top: 48px;
  right: 76px;
  transform: rotate(8deg);
  background: linear-gradient(150deg, #213556, #5f7fe0 58%, #9bd4ff);
}

.hero-bud--fe {
  left: 124px;
  bottom: 42px;
  transform: rotate(10deg);
  background: linear-gradient(150deg, #1f3647, #1a8fb1 58%, #71dfd1);
}

.scene-chip,
.scene-panel {
  position: absolute;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(31, 79, 214, 0.14);
  color: var(--gb-primary);
  font-weight: 900;
  letter-spacing: .14em;
}

.scene-chip {
  padding: 9px 14px;
  font-size: .72rem;
}

.scene-chip--sound {
  top: 30px;
  left: 32px;
}

.scene-chip--anc {
  right: 26px;
  top: 168px;
}

.scene-chip--price {
  right: 110px;
  bottom: 42px;
}

.scene-panel {
  right: 24px;
  top: 268px;
  width: 162px;
  padding: 16px 16px 14px;
  border-radius: 24px;
  letter-spacing: 0;
}

.scene-panel p {
  margin: 0 0 12px;
  font-size: .74rem;
  letter-spacing: .18em;
}

.scene-panel div {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.scene-panel span {
  min-width: 46px;
  color: #39527c;
  font-size: .82rem;
  font-weight: 800;
}

.scene-panel b {
  flex: 1;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(31,79,214,.25), rgba(74,195,255,.84));
}

.how,
.quiz,
.results,
.comparison-guide {
  padding: 26px 0 86px;
}

.how__grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 34px;
  align-items: start;
}

.how h2,
.model-comparison__heading h2,
.comparison-guide__inner h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.12rem);
  line-height: 1.03;
  letter-spacing: -.06em;
}

.how h2 span { display: block; }

.steps {
  display: grid;
  gap: 18px;
}

.step,
.question-panel,
.result-hero,
.insight-block,
.model-comparison,
.comparison-guide__inner,
.disclaimer {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(31, 79, 214, 0.12);
  box-shadow: var(--gb-shadow);
}

.step {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  padding: 22px;
  border-radius: 28px;
}

.step span:first-child {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(31,79,214,.12), rgba(74,195,255,.16));
  color: var(--gb-primary);
  font-size: 1.3rem;
  font-weight: 900;
}

.step h3,
.model-result h3 {
  margin: 0;
  font-size: 1.24rem;
  line-height: 1.3;
}

.step p,
.model-comparison__heading p,
.comparison-guide__lead,
.comparison-guide__content p,
.disclaimer p {
  margin: 10px 0 0;
  color: var(--gb-muted);
}

.how__action {
  margin-top: 24px;
}

.quiz-progress {
  margin-bottom: 18px;
}

.quiz-progress__labels {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  color: #375178;
  font-weight: 800;
}

.progress-track {
  width: 100%;
  height: 14px;
  border-radius: 999px;
  background: rgba(31, 79, 214, 0.1);
  overflow: hidden;
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--gb-primary), var(--gb-accent));
}

.question-panel {
  padding: 30px;
  border-radius: 32px;
}

.question-panel__kicker {
  margin: 0 0 14px;
  color: var(--gb-primary);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.question-panel h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  line-height: 1.16;
  letter-spacing: -.05em;
}

.answer-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.answer,
.back-button {
  width: 100%;
  border-radius: 22px;
  border: 1px solid rgba(31, 79, 214, 0.12);
  background: #fff;
}

.answer {
  padding: 18px 20px;
  color: #22395c;
  text-align: left;
  font-weight: 800;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.answer:hover {
  transform: translateY(-1px);
  border-color: rgba(31, 79, 214, 0.28);
  box-shadow: 0 16px 28px rgba(31, 79, 214, 0.1);
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: auto;
  margin-top: 18px;
  padding: 12px 16px;
  color: var(--gb-muted);
  font-weight: 800;
}

.back-button svg { width: 16px; height: 16px; }

.result-hero {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 28px;
  padding: 32px;
  border-radius: 34px;
}

.score-wrap {
  display: grid;
  place-items: center;
  align-self: start;
}

.score-ring {
  width: 220px;
  height: 220px;
  transform: rotate(-90deg);
}

.score-ring__track,
.score-ring__value {
  fill: none;
  stroke-width: 14;
}

.score-ring__track { stroke: rgba(31, 79, 214, 0.12); }

.score-ring__value {
  stroke: url(#unused);
  stroke: var(--gb-primary);
  stroke-dasharray: 603;
  stroke-dashoffset: 603;
  transition: stroke-dashoffset .42s ease;
}

.score-center {
  position: absolute;
  display: grid;
  place-items: center;
  gap: 6px;
  text-align: center;
}

.score-center span,
.score-center em {
  color: var(--gb-muted);
  font-weight: 800;
}

.score-center strong {
  display: inline-flex;
  align-items: flex-end;
  gap: 4px;
  color: var(--gb-primary-strong);
}

.score-center b {
  font-size: 3rem;
  line-height: 1;
}

.score-center small {
  font-size: 1rem;
  transform: translateY(-4px);
}

.result-copy__title {
  margin: 6px 0 0;
  color: var(--gb-primary-strong);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 900;
  letter-spacing: -.04em;
}

.result-copy__description {
  margin: 14px 0 0;
  color: #2d4567;
  font-weight: 700;
}

.model-result {
  margin-top: 22px;
  padding: 24px;
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(247,250,255,.96), rgba(238,245,255,.96));
  border: 1px solid rgba(31, 79, 214, 0.12);
}

.model-badge {
  display: inline-flex;
  margin: 0 0 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(31, 79, 214, 0.12);
  color: var(--gb-primary);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .16em;
}

.model-visual {
  position: relative;
  min-height: 200px;
  margin: 18px 0;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(31,79,214,.08), rgba(74,195,255,.14));
  overflow: hidden;
}

.model-visual span,
.model-visual i,
.model-visual b,
.model-visual em {
  position: absolute;
}

.model-visual span {
  inset: 26px;
  border: 1px dashed rgba(31, 79, 214, 0.18);
  border-radius: 999px;
}

.model-visual i,
.model-visual b {
  top: 40px;
  width: 84px;
  height: 118px;
  border-radius: 34px;
  background: linear-gradient(150deg, #1a376c, #2964d8 60%, #6dd2ff);
  box-shadow: 0 18px 28px rgba(18, 46, 98, 0.16);
}

.model-visual i::before,
.model-visual i::after,
.model-visual b::before,
.model-visual b::after {
  position: absolute;
  content: "";
}

.model-visual i::before,
.model-visual b::before {
  top: 20px;
  left: 50%;
  width: 36px;
  height: 54px;
  border-radius: 18px;
  background: rgba(255,255,255,.92);
  transform: translateX(-50%);
}

.model-visual i::after,
.model-visual b::after {
  top: 72px;
  left: 50%;
  width: 14px;
  height: 24px;
  border-radius: 8px;
  background: rgba(255,255,255,.92);
  transform: translateX(-50%);
}

.model-visual i {
  left: 70px;
  transform: rotate(-12deg);
}

.model-visual b {
  right: 70px;
  transform: rotate(12deg);
}

.model-visual em {
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  color: #31517f;
  font-size: .8rem;
  font-weight: 900;
  letter-spacing: .16em;
  white-space: nowrap;
}

.model-visual[data-model="buds4pro"] em::before { content: "BUDS4 PRO / UHQ / ANC"; }
.model-visual[data-model="buds4"] b { opacity: .42; }
.model-visual[data-model="buds4"] em::before { content: "BUDS4 / LIGHT / DAILY"; }
.model-visual[data-model="buds3fe"] i { opacity: .35; }
.model-visual[data-model="buds3fe"] b { background: linear-gradient(150deg, #214056, #1f95bb 58%, #80e1d1); }
.model-visual[data-model="buds3fe"] em::before { content: "BUDS3 FE / ENTRY / VALUE"; }
.model-visual[data-model="wait"] i,
.model-visual[data-model="wait"] b { opacity: .28; filter: grayscale(.3); }
.model-visual[data-model="wait"] em::before { content: "WAIT / CHECK / FIT"; }

.model-result p:last-of-type,
.model-result ul,
.insight-list,
.comparison-guide__content h3 {
  margin-top: 14px;
}

.model-result ul,
.insight-list {
  padding-left: 1.2rem;
  color: #28415f;
}

.result-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.result-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 900;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.result-links a:hover { transform: translateY(-1px); }

.result-links .official {
  background: var(--gb-primary);
  color: #fff;
  box-shadow: 0 16px 30px rgba(31, 79, 214, 0.18);
}

.result-links .amazon,
.result-links .rakuten,
.result-links .article {
  border: 1px solid rgba(31, 79, 214, 0.14);
  background: #fff;
}

.result-links .amazon { color: #5b4b1d; }
.result-links .rakuten { color: #a12633; }
.result-links .article { color: #27436c; }

.low-score-guide {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 22px;
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(31, 79, 214, 0.12);
}

.low-score-guide svg {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: var(--gb-primary);
}

.low-score-guide p { margin: 0; color: #345273; }

.insight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 24px;
}

.insight-block {
  padding: 24px;
  border-radius: 28px;
}

.insight-block__heading {
  display: flex;
  align-items: center;
  gap: 14px;
}

.insight-block__heading p {
  margin: 0;
  color: var(--gb-primary);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .15em;
}

.insight-block__heading h3 {
  margin: 2px 0 0;
  font-size: 1.18rem;
}

.insight-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 18px;
}

.insight-icon--positive {
  background: rgba(31, 79, 214, 0.12);
  color: var(--gb-primary);
}

.insight-icon--caution {
  background: rgba(201, 117, 34, 0.13);
  color: #af6b20;
}

.model-comparison,
.comparison-guide__inner,
.disclaimer {
  padding: 28px;
  border-radius: 32px;
}

.model-comparison { margin-top: 24px; }

.model-table-wrap {
  margin-top: 18px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  padding: 16px;
  border-bottom: 1px solid rgba(31, 79, 214, 0.1);
  text-align: left;
  vertical-align: top;
}

thead th {
  color: var(--gb-primary-strong);
  font-size: .86rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

tbody th { width: 190px; }

[data-model].is-highlighted {
  background: rgba(31, 79, 214, 0.06);
}

.comparison-guide__content h3 {
  margin-bottom: 0;
  color: var(--gb-primary-strong);
  font-size: 1.18rem;
}

.restart-area {
  margin-top: 24px;
  text-align: center;
}

@media (max-width: 980px) {
  .hero__layout,
  .how__grid,
  .result-hero,
  .insight-grid {
    grid-template-columns: 1fr;
  }

  .hero-scene {
    min-height: 500px;
  }

  .score-wrap {
    justify-self: center;
  }
}

@media (max-width: 760px) {
  .shell,
  .shell--narrow {
    width: min(calc(100% - 28px), 1120px);
  }

  .hero {
    min-height: auto;
    padding: 88px 0 60px;
  }

  .hero h1,
  .how h2,
  .model-comparison__heading h2,
  .comparison-guide__inner h2 {
    letter-spacing: -.05em;
  }

  .hero-scene {
    min-height: 420px;
  }

  .hero-bud {
    width: 132px;
    height: 188px;
    padding: 18px 16px;
  }

  .hero-bud::before {
    width: 58px;
    height: 84px;
  }

  .hero-bud::after {
    top: 102px;
    height: 38px;
  }

  .hero-bud b { font-size: 1.35rem; }
  .hero-bud span { font-size: .66rem; }

  .hero-bud--pro {
    left: 12px;
    top: 82px;
  }

  .hero-bud--core {
    right: 16px;
    top: 38px;
  }

  .hero-bud--fe {
    left: 92px;
    bottom: 28px;
  }

  .scene-chip--sound { left: 14px; top: 18px; }
  .scene-chip--anc { right: 12px; top: 148px; }
  .scene-chip--price { right: 48px; bottom: 24px; }

  .scene-panel {
    right: 12px;
    top: 250px;
    width: 144px;
    padding: 14px;
  }

  .question-panel,
  .result-hero,
  .insight-block,
  .model-comparison,
  .comparison-guide__inner,
  .disclaimer {
    padding: 22px;
    border-radius: 26px;
  }

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

  .step span:first-child {
    width: 56px;
    height: 56px;
  }

  .model-visual {
    min-height: 176px;
  }

  .model-visual i,
  .model-visual b {
    width: 72px;
    height: 104px;
  }

  .model-visual i {
    left: 28px;
  }

  .model-visual b {
    right: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button,
  .answer,
  .result-links a,
  .score-ring__value {
    transition: none;
  }
}