:root {
  --ink: #f6fff0;
  --muted: #aeb8a9;
  --line: rgba(174, 255, 0, 0.22);
  --paper: #060807;
  --soft: #0d120f;
  --panel: #101511;
  --accent: #a6ff00;
  --accent-dark: #79c900;
  --accent-soft: rgba(166, 255, 0, 0.12);
  --gold: #ffe071;
  --shadow: 0 24px 70px rgba(166, 255, 0, 0.12);
}

body.k2-lp-page {
  margin: 0;
}

body.k2-lp-page,
body.k2-lp-page h1,
body.k2-lp-page h2,
body.k2-lp-page h3,
body.k2-lp-page summary,
body.k2-lp-page strong {
  color: var(--ink);
}

body.k2-lp-page #wpadminbar ~ .site-header,
body.admin-bar.k2-lp-page .site-header {
  top: 32px;
}

@media (max-width: 782px) {
  body.k2-lp-page #wpadminbar ~ .site-header,
  body.admin-bar.k2-lp-page .site-header {
    top: 46px;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(166, 255, 0, 0.08), transparent 28%),
    linear-gradient(180deg, #050605 0%, #0b0f0c 100%);
  color: var(--ink);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(5, 6, 5, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  width: 38px;
  height: 38px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(166, 255, 0, 0.3);
}

.header-cta {
  padding: 10px 16px;
  color: #071006;
  background: var(--accent);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.youtube-link {
  padding: 9px 13px;
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
}

main {
  overflow: hidden;
}

.hero,
section {
  padding: clamp(60px, 8vw, 112px) clamp(20px, 5vw, 72px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
  min-height: calc(100vh - 68px);
  background:
    linear-gradient(90deg, rgba(5, 6, 5, 0.9) 0%, rgba(5, 6, 5, 0.72) 48%, rgba(5, 6, 5, 0.2) 100%),
    radial-gradient(circle at 78% 35%, rgba(166, 255, 0, 0.2), transparent 32%),
    url("https://k2ai.site/wp-content/uploads/2026/06/ChatGPT-Image-2026年6月9日-22_28_22.png") center / cover no-repeat;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.18;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.28;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.45;
}

.lead {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 14px 24px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #071006;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(166, 255, 0, 0.34);
}

.button.primary:hover {
  background: var(--accent-dark);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line);
}

.button.full {
  width: 100%;
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.trust-list li {
  padding: 7px 12px;
  background: rgba(166, 255, 0, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.hero-panel {
  position: relative;
  width: 100%;
}

.hero-image {
  display: block;
  width: min(100%, 760px);
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 0 44px rgba(166, 255, 0, 0.16);
}

.hero-scan {
  position: absolute;
  right: clamp(12px, 3vw, 30px);
  bottom: clamp(12px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-scan span {
  padding: 8px 12px;
  color: var(--accent);
  background: rgba(0, 0, 0, 0.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

.chat-window {
  padding: clamp(20px, 3vw, 30px);
  background: rgba(16, 21, 17, 0.94);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
}

.status-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(166, 255, 0, 0.8);
  border-radius: 50%;
}

.message,
.answer-card {
  padding: 16px;
  margin-bottom: 14px;
  border-radius: 14px;
}

.message.user {
  margin-left: 28px;
  background: rgba(255, 255, 255, 0.07);
}

.message.ai {
  margin-right: 28px;
  color: #071006;
  background: var(--accent);
}

.answer-card {
  margin-bottom: 0;
  background: var(--accent-soft);
  border: 1px solid var(--line);
}

.card-label,
.plan-label {
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

.section-heading {
  max-width: 920px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading.narrow {
  max-width: 760px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
}

.pain-section,
.voice-section,
.faq-section,
.diagnosis-section {
  background: var(--paper);
}

.pain-grid,
.steps,
.voice-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.pain-grid article {
  min-height: 88px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 18px;
  font-weight: 800;
}

.solution-section {
  background: var(--soft);
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.steps article,
.voice-grid article,
.price-card {
  padding: 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.steps span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 800;
}

.steps p,
.voice-grid p,
.price-card li,
.profile-copy p,
.final-cta p {
  color: var(--muted);
}

.concept-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: clamp(28px, 5vw, 60px);
  align-items: center;
  background:
    radial-gradient(circle at 90% 20%, rgba(166, 255, 0, 0.1), transparent 30%),
    var(--paper);
}

.concept-copy {
  max-width: 700px;
}

.text-link {
  display: inline-flex;
  margin-top: 6px;
  color: var(--accent);
  font-weight: 800;
  border-bottom: 2px solid currentColor;
}

.concept-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.concept-list span {
  padding: 10px 14px;
  color: var(--ink);
  background: rgba(166, 255, 0, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 800;
}

.youtube-section {
  background:
    radial-gradient(circle at 18% 22%, rgba(166, 255, 0, 0.1), transparent 30%),
    var(--paper);
}

.youtube-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.youtube-card {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 560px;
  margin: 0 auto;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 0 34px rgba(166, 255, 0, 0.14);
}

.youtube-card img {
  width: 68px;
  height: 68px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.youtube-card span {
  display: grid;
  gap: 4px;
}

.youtube-card strong {
  font-size: 18px;
}

.youtube-card small {
  color: var(--accent);
  font-weight: 800;
}

.visual-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 66px);
  align-items: center;
  background: var(--soft);
}

.visual-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 0 50px rgba(166, 255, 0, 0.16);
}

.visual-frame img {
  display: block;
  width: 100%;
}

.visual-copy {
  max-width: 680px;
}

.profile-section {
  background: #030403;
  color: #fff;
}

.profile-card {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(28px, 5vw, 70px);
  max-width: 1120px;
  margin: 0 auto;
}

.profile-name {
  padding: 30px;
  background: rgba(166, 255, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  text-align: center;
}

.profile-name span {
  display: block;
  margin-bottom: 14px;
  font-size: clamp(54px, 8vw, 92px);
  font-weight: 800;
  line-height: 1;
}

.profile-icon {
  display: block;
  width: 132px;
  height: 132px;
  margin: 0 auto 22px;
  object-fit: cover;
  border: 2px solid var(--line);
  border-radius: 50%;
  box-shadow: 0 0 36px rgba(166, 255, 0, 0.24);
}

.profile-name p,
.profile-copy p {
  color: rgba(255, 255, 255, 0.72);
}

.profile-copy h2 {
  color: #fff;
}

.voice-grid article {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 270px;
}

.voice-grid strong {
  font-size: 14px;
}

.pricing-section {
  background: var(--paper);
}

.pricing-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 900px;
  align-items: stretch;
}

.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
}

.price-card.recommended {
  border: 2px solid var(--accent);
  background:
    radial-gradient(circle at 100% 0%, rgba(166, 255, 0, 0.1), transparent 34%),
    var(--panel);
  box-shadow: 0 20px 54px rgba(166, 255, 0, 0.14);
}

.limited-badge {
  display: inline-flex;
  margin: 0 0 14px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: #071006;
  box-shadow: 0 8px 22px rgba(166, 255, 0, 0.18);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.price-card.recommended .plan-label {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 900;
}

.price-comparison {
  display: grid;
  gap: 8px;
  margin: 18px 0 12px;
  padding: 18px 20px 20px;
  border: 1px solid rgba(166, 255, 0, 0.34);
  border-radius: 14px;
  background: #090d0a;
}

.regular-price {
  margin: 0;
  color: #c5cec1;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}

.regular-price del {
  margin-left: 5px;
  color: #d7ded3;
  font-size: 16px;
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--accent);
}

.price-arrow {
  display: none;
}

.price {
  margin: 6px 0;
  color: var(--ink);
  font-weight: 800;
}

.price-comparison .price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  margin: 0;
  color: var(--accent);
  font-weight: 900;
  line-height: 1.25;
}

.price strong {
  font-size: 44px;
  line-height: 1;
}

.price-comparison .price strong,
body.k2-lp-page .price-comparison .price strong {
  color: var(--accent);
  font-size: clamp(48px, 6vw, 60px);
  letter-spacing: -0.04em;
}

.price small {
  font-size: 13px;
  font-weight: 700;
}

.price-comparison .price small {
  color: #d8e2d3;
  white-space: nowrap;
}

.savings {
  display: inline-block;
  margin: 0 0 10px;
  padding: 7px 13px;
  border: 1px solid rgba(255, 224, 113, 0.38);
  border-radius: 999px;
  background: rgba(255, 224, 113, 0.1);
  color: var(--gold);
  font-size: 14px;
  font-weight: 900;
}

.price-note {
  margin: 0 0 20px;
  color: #dce5d8;
  font-size: 14px;
  font-weight: 700;
}

.price-card.premium {
  border: 2px solid rgba(255, 224, 113, 0.75);
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 224, 113, 0.13), transparent 36%),
    var(--panel);
  box-shadow: 0 20px 54px rgba(255, 224, 113, 0.1);
}

.premium-badge {
  display: inline-flex;
  margin: 0 0 14px;
  padding: 7px 14px;
  border: 1px solid rgba(255, 224, 113, 0.56);
  border-radius: 999px;
  background: rgba(255, 224, 113, 0.12);
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.price-card.premium .plan-label {
  margin: 0 0 6px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 900;
}

.premium-price {
  margin: 18px 0 12px;
  padding: 18px 20px 20px;
  border: 1px solid rgba(255, 224, 113, 0.34);
  border-radius: 14px;
  background: #0d0e09;
}

.premium-includes {
  margin: 0 0 8px;
  color: #ddd3a4;
  font-size: 13px;
  font-weight: 800;
}

.premium-price .price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  margin: 0;
  color: var(--gold);
  font-weight: 900;
  line-height: 1.25;
}

.premium-price .price strong,
body.k2-lp-page .premium-price .price strong {
  color: var(--gold);
  font-size: clamp(48px, 6vw, 60px);
  letter-spacing: -0.04em;
}

.premium-price .price small {
  color: #e5dfc2;
  white-space: nowrap;
}

.premium-note {
  margin: 0 0 20px;
  color: #e5dfc2;
  font-size: 14px;
  font-weight: 700;
}

.button.premium-cta {
  background: linear-gradient(135deg, #ffe071 0%, #ffc83d 100%);
  border-color: #ffe071;
  color: #171207;
  box-shadow: 0 12px 30px rgba(255, 224, 113, 0.18);
}

.button.premium-cta:hover {
  background: linear-gradient(135deg, #ffea9b 0%, #ffd45d 100%);
  transform: translateY(-1px);
}

.price-card ul {
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
}

.price-card > .button.full {
  margin-top: auto;
}

.price-card li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

details {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
}

details p {
  margin: 14px 0 0;
  color: var(--muted);
}

.compliance-section {
  background: var(--soft);
}

.notice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.notice-grid article {
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.notice-grid p {
  color: var(--muted);
}

.final-cta {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.final-cta h2 {
  margin-right: auto;
  margin-left: auto;
  max-width: 760px;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px);
  background: #030403;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 18px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 920px) {
  .hero,
  .profile-card,
  .concept-section,
  .visual-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .pain-grid,
  .steps,
  .voice-grid,
  .notice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: 29px;
    line-height: 1.28;
  }

  h2 {
    font-size: 25px;
    line-height: 1.35;
  }

  .lead {
    font-size: 16px;
  }

  .price-card {
    padding: 22px 20px;
  }

  .price-comparison {
    padding: 16px;
  }

  .price-comparison .price strong,
  body.k2-lp-page .price-comparison .price strong {
    font-size: 50px;
  }

  .site-header {
    padding: 12px 16px;
    gap: 10px;
  }

  .brand span:last-child {
    display: none;
  }

  .header-actions {
    gap: 6px;
  }

  .youtube-link,
  .header-cta {
    padding: 8px 10px;
    font-size: 12px;
  }

  .hero,
  section {
    padding: 48px 18px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .pain-grid,
  .steps,
  .voice-grid,
  .pricing-grid,
  .notice-grid {
    grid-template-columns: 1fr;
  }

  .message.user,
  .message.ai {
    margin-right: 0;
    margin-left: 0;
  }

  .hero-scan {
    display: none;
  }

  .hero-image {
    border-radius: 10px;
  }

  .price strong {
    font-size: 38px;
  }

  .voice-grid article {
    min-height: auto;
  }

  footer {
    flex-direction: column;
    text-align: center;
  }
}