/* ============================================================
   /seo 改修モック v3 ─ 「検索から、指名される。」
   2026-04-20 シオン（デザイナー）
   スコープ：#seo_page 配下のみ（他ページ完全非干渉）
   コンセプト：観測ダッシュボード × ネオンサイアン × モーション過剰
   差別化：homepage（ベージュ・ゴールド）と色相・タイポ・動き全てで次元を変える
   ============================================================ */

/* reset（スコープ内限定） */
:where(#seo_page, #seo_page *) { box-sizing: border-box; }
:where(#seo_page p, #seo_page h1, #seo_page h2, #seo_page h3, #seo_page h4,
       #seo_page h5, #seo_page ul, #seo_page ol, #seo_page li,
       #seo_page figure, #seo_page dl, #seo_page dd) { margin: 0; padding: 0; }
:where(#seo_page ul, #seo_page ol) { list-style: none; }
:where(#seo_page img, #seo_page svg) { display: block; max-width: 100%; height: auto; }
:where(#seo_page button) { background: none; border: 0; cursor: pointer; color: inherit; font: inherit; }
:where(#seo_page a) { color: inherit; text-decoration: none; }
:where(#seo_page canvas) { display: block; }

#seo_page {
  /* color tokens */
  --bg: #05070b;
  --bg-2: #080c14;
  --bg-3: #0e1420;
  --panel: #0c111b;
  --panel-2: #0f1623;
  --rule: rgba(255,255,255,0.08);
  --rule-2: rgba(255,255,255,0.14);
  --ink: #ecf2ff;
  --ink-2: #c6cfe0;
  --ink-3: #8a94a8;
  --ink-4: #5a6478;
  --ink-5: #3b4354;

  --cyan: #00e6c4;
  --cyan-2: #22f0d8;
  --cyan-dim: rgba(0,230,196,0.18);
  --cyan-glow: rgba(0,230,196,0.45);

  --lime: #c8ff4f;
  --violet: #9b6bff;
  --magenta: #ff4d8f;
  --amber: #ffb13d;

  --warn: #ff6a6a;

  --grad-neon: linear-gradient(92deg, #00e6c4 0%, #c8ff4f 100%);
  --grad-holo: linear-gradient(120deg, #00e6c4 0%, #9b6bff 50%, #ff4d8f 100%);
  --grad-radial-cyan: radial-gradient(600px 400px at 50% 50%, rgba(0,230,196,0.22), transparent 70%);

  --font-jp: 'Noto Sans JP','Hiragino Kaku Gothic ProN',sans-serif;
  --font-en: 'Space Grotesk','Inter',sans-serif;
  --font-display: 'Syncopate','Space Grotesk',sans-serif;
  --font-mono: 'JetBrains Mono','Courier New',monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-expo: cubic-bezier(0.87, 0, 0.13, 1);
  --dur: 0.7s;
  --dur-fast: 0.3s;

  font-family: var(--font-jp);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.8;
  letter-spacing: 0.015em;
  font-feature-settings: "palt" 1, "kern" 1;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* 背景レイヤ：深宇宙グリッド */
#seo_page::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 800px at 18% 10%, rgba(0,230,196,0.10), transparent 60%),
    radial-gradient(1000px 700px at 82% 90%, rgba(155,107,255,0.08), transparent 60%),
    radial-gradient(800px 600px at 50% 50%, rgba(200,255,79,0.04), transparent 70%),
    linear-gradient(180deg, #05070b 0%, #080b11 100%);
  z-index: 0;
  pointer-events: none;
}
#seo_page::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.95), transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.95), transparent 85%);
  z-index: 0;
  pointer-events: none;
}

/* ============================================================
   OPENING SEQUENCE（起動演出）
   ============================================================ */
.sx-boot {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: #05070b;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.8s var(--ease), visibility 0.8s;
}
.sx-boot.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.sx-boot__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,230,196,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,230,196,0.12) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9), transparent 70%);
  animation: sx-boot-grid 2.2s linear infinite;
}
@keyframes sx-boot-grid { to { transform: translate(40px, 40px); } }

.sx-boot__center {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  min-width: 320px;
}
.sx-boot__code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.28em;
  animation: sx-boot-blink 1.2s step-end infinite;
}
@keyframes sx-boot-blink { 50% { opacity: 0.5; } }
.sx-boot__bar {
  width: 320px;
  height: 2px;
  background: rgba(0,230,196,0.12);
  position: relative;
  overflow: hidden;
}
.sx-boot__bar-in {
  position: absolute;
  inset: 0;
  background: var(--grad-neon);
  transform-origin: left;
  transform: scaleX(0);
  box-shadow: 0 0 16px var(--cyan);
  animation: sx-boot-fill 2s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
@keyframes sx-boot-fill {
  0% { transform: scaleX(0); }
  30% { transform: scaleX(0.3); }
  60% { transform: scaleX(0.68); }
  100% { transform: scaleX(1); }
}
.sx-boot__status {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  margin-top: 4px;
  width: 320px;
  text-align: left;
}
.sx-boot__status span {
  opacity: 0;
  animation: sx-boot-line 0.4s ease forwards;
}
.sx-boot__status span:nth-child(1) { animation-delay: 0.2s; }
.sx-boot__status span:nth-child(2) { animation-delay: 0.7s; }
.sx-boot__status span:nth-child(3) { animation-delay: 1.2s; }
.sx-boot__status span:nth-child(4) { animation-delay: 1.7s; color: var(--cyan); }
@keyframes sx-boot-line {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   DEMO BAR
   ============================================================ */
.sx-demo-bar {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: 9px 6vw;
  background: rgba(5,7,11,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  text-align: center;
  font-weight: 600;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
}
.sx-demo-bar__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: sx-pulse 1.4s ease-in-out infinite;
}
.sx-demo-bar__time {
  margin-left: auto;
  color: var(--ink-3);
  letter-spacing: 0.18em;
}
@media (max-width: 768px) {
  .sx-demo-bar { font-size: 9.5px; gap: 10px; }
  .sx-demo-bar__time { display: none; }
}

/* ============================================================
   GLOBAL PROGRESS BAR（上端）
   ============================================================ */
.sx-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 70;
  background: rgba(0,230,196,0.06);
  pointer-events: none;
}
.sx-progress__in {
  height: 100%;
  background: var(--grad-neon);
  box-shadow: 0 0 8px var(--cyan);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.1s linear;
}

/* ============================================================
   OVERLAYS
   ============================================================ */
.sx-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='5'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.9'/></svg>");
  background-size: 140px 140px;
}
.sx-scanline {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: repeating-linear-gradient(0deg, transparent 0px, transparent 3px, rgba(255,255,255,0.015) 3px, rgba(255,255,255,0.015) 4px);
  mix-blend-mode: overlay;
}

/* ============================================================
   SIDENAV
   ============================================================ */
.sx-sidenav {
  position: fixed;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 16px;
}
.sx-sidenav__bar {
  width: 2px;
  height: 280px;
  background: var(--rule);
  position: relative;
}
.sx-sidenav__bar-inner {
  position: absolute;
  inset: 0;
  background: var(--grad-neon);
  transform-origin: top;
  transform: scaleY(0);
  box-shadow: 0 0 10px var(--cyan);
}
.sx-sidenav ol { display: flex; flex-direction: column; gap: 12px; }
.sx-sidenav a {
  display: inline-grid;
  grid-template-columns: 22px 1fr;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  color: var(--ink-4);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
  font-weight: 600;
  position: relative;
}
.sx-sidenav__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: inherit;
}
.sx-sidenav__lbl {
  font-size: 10px;
  letter-spacing: 0.24em;
  color: inherit;
  position: relative;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.sx-sidenav a:hover { color: var(--ink-2); }
.sx-sidenav a:hover .sx-sidenav__lbl { opacity: 1; transform: translateX(0); }
.sx-sidenav a.is-active { color: var(--cyan); transform: translateX(3px); }
.sx-sidenav a.is-active .sx-sidenav__lbl { opacity: 1; transform: translateX(0); }
.sx-sidenav a.is-active .sx-sidenav__num { text-shadow: 0 0 10px var(--cyan); }
@media (max-width: 1280px) { .sx-sidenav { display: none; } }

/* ============================================================
   共通：セクション見出し
   ============================================================ */
#seo_page .sx-wrap { max-width: 1440px; margin: 0 auto; padding: 0 6vw; position: relative; z-index: 2; }
#seo_page section { position: relative; z-index: 1; }

#seo_page .sx-section__head {
  text-align: center;
  margin-bottom: 80px;
  position: relative;
}
#seo_page .sx-section__head--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  text-align: left;
  align-items: end;
}
#seo_page .sx-section__head--split .sx-label { justify-content: flex-start; }
#seo_page .sx-section__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-4);
  margin-bottom: 14px;
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--rule);
  border-radius: 100px;
}
#seo_page .sx-section__head--split .sx-section__idx { margin-left: 0; }

#seo_page .sx-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 22px;
  justify-content: center;
}
#seo_page .sx-section__head--split .sx-label { justify-content: flex-start; }
#seo_page .sx-label::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
}
#seo_page .sx-label.live::after {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: sx-pulse 1.6s ease-in-out infinite;
  margin-left: 4px;
}
@keyframes sx-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.7); }
}

#seo_page .sx-h1 {
  font-size: clamp(44px, 8vw, 128px);
  line-height: 0.95;
  font-weight: 900;
  letter-spacing: -0.04em;
  word-break: keep-all;
  font-family: var(--font-jp);
  margin-bottom: 0;
}
#seo_page .sx-h2 {
  font-size: clamp(32px, 5.2vw, 72px);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.035em;
  word-break: keep-all;
  margin-bottom: 20px;
}
#seo_page .sx-h3 {
  font-size: clamp(22px, 2.4vw, 36px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
}
#seo_page .sx-h2 em {
  font-style: normal;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
  display: inline-block;
}
#seo_page .sx-h2 em::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.1em;
  height: 2px;
  background: var(--grad-neon);
  box-shadow: 0 0 8px var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s var(--ease-out) 0.3s;
}
#seo_page [data-reveal].is-in .sx-h2 em::after,
#seo_page .sx-h2.is-in em::after { transform: scaleX(1); }

#seo_page .sx-lead {
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 2.05;
  max-width: 720px;
  margin: 0 auto;
  word-break: auto-phrase;
}
#seo_page .sx-section__head--split .sx-lead { margin: 0; }

/* ============================================================
   reveal / split
   ============================================================ */
#seo_page [data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
  transition-delay: calc(var(--stag, 0) * 0.08s);
}
#seo_page [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}
#seo_page [data-reveal="left"] { transform: translateX(-40px); }
#seo_page [data-reveal="left"].is-in { transform: translateX(0); }
#seo_page [data-reveal="right"] { transform: translateX(40px); }
#seo_page [data-reveal="right"].is-in { transform: translateX(0); }
#seo_page [data-reveal="scale"] { transform: scale(0.92); opacity: 0; }
#seo_page [data-reveal="scale"].is-in { transform: scale(1); opacity: 1; }

#seo_page .sx-anim { opacity: 0; transform: translateY(40px); transition: opacity 1.2s var(--ease-out), transform 1.2s var(--ease-out); }
#seo_page .sx-anim.is-in { opacity: 1; transform: translateY(0); }

#seo_page .sx-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(60%) rotateX(70deg);
  transform-origin: 50% 100%;
  animation: sx-charin 0.9s var(--ease-out) forwards;
  animation-delay: calc(var(--i,0) * 0.045s + 0.3s);
}
#seo_page .sx-char--space { animation: none; opacity: 1; transform: none; }

/* H1 の塗りグラデを .sx-char へ直接適用（background-clip text の伝播問題を回避） */
#seo_page .sx-h1__fill .sx-char {
  background: linear-gradient(180deg, #ffffff 0%, #d8dfee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
#seo_page .sx-h1__fill--em .sx-char {
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@keyframes sx-charin {
  from { opacity: 0; transform: translateY(80%) rotateX(70deg); filter: blur(6px); }
  to { opacity: 1; transform: translateY(0) rotateX(0deg); filter: blur(0); }
}

@media (prefers-reduced-motion: reduce) {
  #seo_page *, #seo_page *::before, #seo_page *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  #seo_page .sx-char { opacity: 1 !important; transform: none !important; }
  .sx-boot { display: none !important; }
}

/* ============================================================
   HERO
   ============================================================ */
.sx-hero {
  min-height: 100vh;
  min-height: 100svh;
  padding: 100px 0 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.sx-hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.8;
}
.sx-hero__glow {
  position: absolute;
  inset: -10%;
  z-index: 0;
  background:
    radial-gradient(600px 500px at 18% 40%, rgba(0,230,196,0.25), transparent 60%),
    radial-gradient(500px 400px at 88% 70%, rgba(155,107,255,0.20), transparent 60%),
    radial-gradient(420px 360px at 50% 20%, rgba(200,255,79,0.08), transparent 70%);
  animation: sx-glow 22s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes sx-glow {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-4%, 3%) scale(1.05); }
  100% { transform: translate(3%, -2%) scale(0.98); }
}

/* クロスヘア（観測装置風） */
.sx-hero__crosshair {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0.4;
}
.sx-hero__crosshair-v,
.sx-hero__crosshair-h {
  position: absolute;
  background: linear-gradient(transparent, var(--cyan), transparent);
}
.sx-hero__crosshair-v {
  width: 1px;
  height: 60%;
  top: 20%;
  left: 50%;
  background: linear-gradient(180deg, transparent, rgba(0,230,196,0.5), transparent);
}
.sx-hero__crosshair-h {
  width: 40%;
  height: 1px;
  top: 50%;
  left: 30%;
  background: linear-gradient(90deg, transparent, rgba(0,230,196,0.5), transparent);
}
.sx-hero__crosshair-box {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80px; height: 80px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(0,230,196,0.35);
  animation: sx-crosshair 6s ease-in-out infinite;
}
@keyframes sx-crosshair {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.4; }
  50% { transform: translate(-50%, -50%) scale(1.5); opacity: 0.1; }
}
@media (max-width: 900px) { .sx-hero__crosshair { display: none; } }

.sx-hero__inner { position: relative; z-index: 4; width: 100%; max-width: 1200px;}

.sx-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 9px 18px;
  border: 1px solid var(--rule-2);
  border-radius: 100px;
  background: rgba(12,17,27,0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-en);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--ink-2);
  font-weight: 600;
  margin-bottom: 32px;
  opacity: 0;
  animation: sx-tag-in 0.8s var(--ease-out) 0.4s forwards;
}
.sx-hero__tag-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: sx-pulse 1.4s ease-in-out infinite;
}
.sx-hero__tag-sep { color: var(--ink-4); }
@keyframes sx-tag-in {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* H1（塗り only + アンダーライン演出） */
.sx-hero__h1 {
  position: relative;
  margin-bottom: 36px;
  line-height: 0.95;
  perspective: 1200px;
}
.sx-h1__row {
  position: relative;
  display: block;
  overflow: hidden;
  padding: 0.06em 0.02em 0.18em;
}
.sx-h1__stroke { display: none; } /* 非表示（重なりノイズ回避） */
.sx-h1__fill {
  display: block;
  position: relative;
  font-weight: 900;
  background: linear-gradient(180deg, #ffffff 0%, #d8dfee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-h1__fill--em {
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
}
.sx-h1__fill--em::after {
  content: "";
  position: absolute;
  left: 0; bottom: -10px;
  width: 0;
  height: 4px;
  background: var(--grad-neon);
  box-shadow: 0 0 20px var(--cyan);
  animation: sx-underline 1.4s var(--ease-expo) 1.6s forwards;
  border-radius: 2px;
}
@keyframes sx-underline { to { width: 100%; } }

/* HERO meta row */
.sx-hero__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.12em;
  margin-bottom: 24px;
  padding: 10px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.sx-hero__meta-k { color: var(--ink-4); }
.sx-hero__meta-v { color: var(--cyan); }
.sx-hero__meta-sep {
  width: 1px; height: 12px;
  background: var(--rule-2);
  display: inline-block;
}

.sx-hero__sub {
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--ink-2);
  margin-bottom: 14px;
  max-width: 620px;
  line-height: 1.9;
  word-break: auto-phrase;
}
.sx-hero__lead {
  font-size: 13.5px;
  color: var(--ink-3);
  margin-bottom: 36px;
  max-width: 620px;
  line-height: 2;
  word-break: auto-phrase;
}
.sx-hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 60px; }

/* KPI */
.sx-hero__kpi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 860px;
  padding: 32px 0 0;
  border-top: 1px solid var(--rule);
  position: relative;
}
.sx-hero__kpi::before {
  content: "KEY METRICS";
  position: absolute;
  top: -8px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.3em;
  color: var(--ink-4);
  background: var(--bg);
  padding: 0 10px 0 0;
}
.sx-kpi__num {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}
.sx-kpi__num em {
  font-style: normal;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-kpi__unit {
  font-family: var(--font-en);
  font-size: 0.3em;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  font-weight: 600;
}
.sx-kpi__label {
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  line-height: 1.6;
  font-weight: 500;
}

/* HUD blocks */
.sx-hud {
  position: absolute;
  z-index: 4;
  padding: 14px 18px;
  background: rgba(12,17,27,0.7);
  border: 1px solid var(--rule-2);
  border-radius: 8px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-family: var(--font-mono);
  font-size: 10.5px;
  min-width: 240px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
  opacity: 0;
  transform: translateY(-10px);
  animation: sx-hud-in 0.9s var(--ease-out) 0.9s forwards;
}
.sx-hud::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40%; height: 2px;
  background: var(--grad-neon);
  box-shadow: 0 0 8px var(--cyan);
}
.sx-hud--tl { top: 84px; left: 6vw; display:none;}
.sx-hud--tr { top: 84px; right: 6vw; min-width: 280px; }
@keyframes sx-hud-in {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.sx-hud__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--ink-3);
  letter-spacing: 0.22em;
  font-size: 9.5px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--rule);
}
.sx-hud__ping {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: sx-pulse 1.2s ease-in-out infinite;
}
.sx-hud__row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  gap: 16px;
}
.sx-hud__k { color: var(--ink-4); letter-spacing: 0.08em; }
.sx-hud__v { color: var(--cyan); font-weight: 600; }

@media (max-width: 1280px) { .sx-hud--tl { display: none; } }
@media (max-width: 1024px) { .sx-hud { display: none; } }

/* SCROLL 誘導 */
.sx-hero__scroll {
  position: absolute;
  bottom: 32px;
  right: 6vw;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 5;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--cyan);
  opacity: 0;
  animation: sx-fade-delayed 1.2s var(--ease) 2.2s forwards;
}
.sx-hero__scroll-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  position: relative;
  overflow: hidden;
}
.sx-hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  transform: translateX(-100%);
  animation: sx-scroll-sweep 2.2s var(--ease) infinite;
}
@keyframes sx-scroll-sweep {
  0% { transform: translateX(-100%); }
  60% { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}
@keyframes sx-fade-delayed { to { opacity: 1; } }
@media (max-width: 900px) { .sx-hero__scroll { display: none; } }

/* ============================================================
   BUTTONS
   ============================================================ */
.sx-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 17px 28px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  isolation: isolate;
  --mx: 0; --my: 0;
  transform: translate(var(--mx,0), var(--my,0));
}
.sx-btn__label { position: relative; z-index: 2; }
.sx-btn__arrow {
  width: 18px; height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s var(--ease);
  position: relative;
  z-index: 2;
}
.sx-btn__arrow svg {
  width: 100%; height: 100%;
  stroke: currentColor; fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sx-btn:hover .sx-btn__arrow { transform: translateX(5px); }

.sx-btn--primary {
  background: var(--cyan);
  color: #061a18;
  box-shadow: 0 10px 30px rgba(0,230,196,0.25), 0 0 0 1px rgba(0,230,196,0.4);
}
.sx-btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(92deg, var(--cyan) 0%, var(--lime) 50%, var(--cyan) 100%);
  background-size: 200% 100%;
  background-position: 0% 0%;
  transition: background-position 0.6s var(--ease);
  z-index: 1;
}
.sx-btn--primary:hover { transform: translate(var(--mx,0), calc(-2px + var(--my,0))); box-shadow: 0 20px 50px rgba(0,230,196,0.45), 0 0 0 1px var(--cyan); }
.sx-btn--primary:hover::before { background-position: 100% 0%; }

.sx-btn--xl { padding: 22px 40px; font-size: 15.5px; }

.sx-btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule-2);
}
.sx-btn--ghost::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,230,196,0.06);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease-expo);
  z-index: 1;
}
.sx-btn--ghost:hover { color: var(--cyan); border-color: var(--cyan); }
.sx-btn--ghost:hover::before { transform: scaleX(1); transform-origin: left; }

/* ============================================================
   MARQUEE
   ============================================================ */
.sx-marquee {
  padding: 28px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: rgba(12,17,27,0.5);
  overflow: hidden;
  position: relative;
}
.sx-marquee::before, .sx-marquee::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  width: 120px;
  z-index: 2;
  pointer-events: none;
}
.sx-marquee::before { left: 0; background: linear-gradient(90deg, var(--bg), transparent); }
.sx-marquee::after { right: 0; background: linear-gradient(270deg, var(--bg), transparent); }
.sx-marquee__track {
  display: flex;
  gap: 48px;
  align-items: center;
  white-space: nowrap;
  animation: sx-marquee 36s linear infinite;
  width: max-content;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
}
.sx-marquee__track .dot {
  color: var(--cyan);
  font-size: 14px;
  text-shadow: 0 0 10px var(--cyan);
}
@keyframes sx-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (max-width: 768px) { .sx-marquee__track { font-size: 22px; gap: 32px; } }

/* ============================================================
   ② CONCEPT
   ============================================================ */
.sx-concept { padding: 160px 0; }
.sx-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  max-width: 1200px;
  margin: 0 auto;
}
.sx-timeline::before {
  content: "";
  position: absolute;
  top: 68px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 20%, var(--cyan) 80%, transparent 100%);
  opacity: 0.4;
}
.sx-step {
  padding: 24px;
  text-align: center;
  position: relative;
}
.sx-step__year {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.28em;
  color: var(--ink-4);
  margin-bottom: 12px;
  font-weight: 600;
}
.sx-step__dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 2px solid var(--ink-4);
  margin: 0 auto 28px;
  position: relative;
  transition: all 0.4s var(--ease);
}
.sx-step.is-now .sx-step__year { color: var(--cyan); }
.sx-step.is-now .sx-step__dot {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 24px var(--cyan), 0 0 0 8px rgba(0,230,196,0.12);
}
.sx-step.is-now .sx-step__dot::before {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  animation: sx-ring 2s ease-out infinite;
}
@keyframes sx-ring {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(2.6); opacity: 0; }
}
.sx-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: var(--ink); letter-spacing: -0.01em; }
.sx-step p { font-size: 13px; color: var(--ink-3); line-height: 1.85; }
.sx-step.is-now h3 { color: var(--cyan); }

@media (max-width: 768px) {
  .sx-timeline { grid-template-columns: 1fr; gap: 16px; }
  .sx-timeline::before { display: none; }
  .sx-step { text-align: left; padding: 24px; border: 1px solid var(--rule); border-radius: 12px; background: var(--panel); }
  .sx-step__dot { margin: 0 0 16px; }
}

.sx-diagram {
  margin-top: 100px;
  padding: 48px;
  border: 1px solid var(--rule);
  border-radius: 20px;
  background: linear-gradient(180deg, var(--panel), rgba(12,17,27,0.4));
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}
.sx-diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 200px at 50% 0%, rgba(0,230,196,0.10), transparent 70%);
  pointer-events: none;
}
.sx-diagram__label {
  position: absolute;
  top: 18px; left: 24px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--ink-4);
  padding: 4px 12px;
  border: 1px solid var(--rule);
  border-radius: 100px;
}
.sx-diagram svg { width: 100%; height: auto; max-height: 460px; margin-top: 24px; }

#seo_page .sx-path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 2.2s var(--ease-out);
}
#seo_page .sx-anim.is-in .sx-path { stroke-dashoffset: 0; }
@media (max-width: 700px) { .sx-diagram { padding: 32px 16px; } }

/* ============================================================
   ③ PAIN
   ============================================================ */
.sx-pains {
  padding: 140px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(12,17,27,0.5) 50%, transparent 100%);
}
.sx-pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.sx-pain {
  position: relative;
  padding: 32px 28px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
  transform-style: preserve-3d;
  transform: perspective(900px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0));
}
.sx-pain::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), rgba(0,230,196,0.14), transparent 50%);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.sx-pain::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-neon);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.sx-pain:hover::before { opacity: 1; }
.sx-pain:hover::after { opacity: 1; }

.sx-pain__num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.3em;
  color: var(--cyan);
  margin-bottom: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sx-pain__num::before {
  content: "";
  width: 18px; height: 1px;
  background: var(--cyan);
}
.sx-pain__q {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.55;
  margin-bottom: 22px;
  word-break: auto-phrase;
  letter-spacing: -0.01em;
  min-height: 3em;
}
.sx-pain__solve {
  padding-top: 16px;
  border-top: 1px dashed var(--rule-2);
  font-size: 12.5px;
  color: var(--ink-2);
  line-height: 1.85;
}
.sx-pain__solve strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--cyan);
  letter-spacing: 0.3em;
  margin-bottom: 6px;
  font-weight: 700;
}

/* CTA pain card */
.sx-pain--cta {
  background: linear-gradient(150deg, rgba(0,230,196,0.14), rgba(155,107,255,0.08));
  border-color: var(--cyan);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 0 0 1px var(--cyan), 0 20px 60px rgba(0,230,196,0.15);
}
.sx-pain--cta::after { display: none; }
.sx-pain__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding: 14px 22px;
  background: var(--cyan);
  color: #061a18;
  border-radius: 100px;
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  align-self: flex-start;
}
.sx-pain__cta-btn svg {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sx-pain__cta-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,230,196,0.4); }

@media (max-width: 900px) { .sx-pain-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .sx-pain-grid { grid-template-columns: 1fr; } .sx-pain__q { min-height: 0; } }

/* ============================================================
   ④ REASONS
   ============================================================ */
.sx-reasons { padding: 160px 0; }
.sx-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 140px;
}
.sx-row:last-child { margin-bottom: 0; }
.sx-row:nth-child(even) .sx-row__media { order: 2; }
.sx-row__media {
  position: relative;
  aspect-ratio: 4 / 3;
}
.sx-row__media-inner {
  position: absolute;
  inset: 8px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--rule);
}
.sx-row__media-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,230,196,0.30) 0%, transparent 50%);
  z-index: 2;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.sx-row__media-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5,7,11,0.85) 100%);
  z-index: 3;
  pointer-events: none;
}
.sx-row__media-inner img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.08) brightness(0.82);
  transition: transform 1.4s var(--ease);
}
.sx-row:hover .sx-row__media-inner img { transform: scale(1.05); }
.sx-row__media-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,230,196,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,230,196,0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: 4;
  pointer-events: none;
  mix-blend-mode: screen;
}

/* 枠の4隅にクロスヘア */
.sx-row__media-corner {
  position: absolute;
  width: 18px; height: 18px;
  border: 1.5px solid var(--cyan);
  z-index: 5;
  pointer-events: none;
}
.sx-row__media-corner--tl { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.sx-row__media-corner--tr { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.sx-row__media-corner--bl { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.sx-row__media-corner--br { bottom: 0; right: 0; border-left: 0; border-top: 0; }

.sx-row__media-meta {
  position: absolute;
  bottom: 20px; left: 24px;
  z-index: 6;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--cyan);
  background: rgba(5,7,11,0.7);
  padding: 6px 12px;
  border-radius: 100px;
  border: 1px solid var(--cyan);
  backdrop-filter: blur(8px);
}

.sx-row__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.3em;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sx-row__num::before {
  content: "";
  width: 32px; height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
}
.sx-row__title { margin-bottom: 26px; }
.sx-row__title em {
  font-style: normal;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-row__desc { font-size: 15px; line-height: 2.05; color: var(--ink-2); word-break: auto-phrase; }
.sx-row__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.sx-row__tag {
  padding: 6px 14px;
  border: 1px solid var(--rule-2);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-2);
  letter-spacing: 0.08em;
  font-weight: 500;
  transition: all 0.3s var(--ease);
}
.sx-row__tag:hover { border-color: var(--cyan); color: var(--cyan); }
.sx-row__tag.is-hl { border-color: var(--cyan); color: var(--cyan); background: rgba(0,230,196,0.06); }

@media (max-width: 900px) {
  .sx-row { grid-template-columns: 1fr; gap: 40px; margin-bottom: 80px; }
  .sx-row:nth-child(even) .sx-row__media { order: 0; }
}

/* ============================================================
   ⑤ SERVICES
   ============================================================ */
.sx-services { padding: 140px 0; position: relative; }
.sx-svc-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.sx-card {
  position: relative;
  padding: 28px 22px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 14px;
  overflow: hidden;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  transition: transform 0.5s var(--ease), border-color 0.4s var(--ease);
  transform: perspective(900px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0));
}
.sx-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--rule-2);
  transition: background 0.4s var(--ease);
}
.sx-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(260px circle at var(--mx,50%) var(--my,50%), rgba(0,230,196,0.14), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.sx-card:hover { border-color: rgba(0,230,196,0.35); }
.sx-card:hover::before { background: var(--grad-neon); box-shadow: 0 0 16px var(--cyan); }
.sx-card:hover::after { opacity: 1; }

.sx-card__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 18px;
}
.sx-card__icon {
  width: 48px; height: 48px;
  margin-bottom: 22px;
  color: var(--cyan);
  position: relative;
}
.sx-card__icon::before {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(0,230,196,0.25);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.sx-card:hover .sx-card__icon::before { opacity: 1; }
.sx-card__icon svg { width: 100%; height: 100%; stroke: currentColor; fill: none; stroke-width: 1.5; }
.sx-card h3 { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 12px; line-height: 1.45; letter-spacing: -0.01em; }
.sx-card p { font-size: 13px; color: var(--ink-3); line-height: 1.85; flex: 1; word-break: auto-phrase; }
.sx-card__price {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  padding-top: 18px;
  margin-top: 16px;
  border-top: 1px dashed var(--rule-2);
  letter-spacing: 0.04em;
}
.sx-card__price small {
  font-family: var(--font-jp);
  font-size: 11px;
  color: var(--ink-3);
  margin-left: 6px;
  font-weight: 500;
  letter-spacing: 0;
}
.sx-card--feature {
  background: linear-gradient(145deg, rgba(0,230,196,0.12), rgba(155,107,255,0.08));
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 30px 80px rgba(0,230,196,0.15);
}
.sx-card--feature::before { background: var(--grad-neon); box-shadow: 0 0 16px var(--cyan); }
.sx-card--feature .sx-card__num { color: var(--cyan-2); }
.sx-card--feature p { color: var(--ink-2); }

@media (max-width: 1100px) { .sx-svc-grid { grid-template-columns: repeat(3, 1fr); } .sx-card { min-height: 300px; } }
@media (max-width: 700px) { .sx-svc-grid { grid-template-columns: 1fr 1fr; gap: 12px; } .sx-card { min-height: 260px; padding: 24px 18px; } }
@media (max-width: 440px) { .sx-svc-grid { grid-template-columns: 1fr; } }

/* mid CTA strip */
.sx-mid-cta {
  margin-top: 80px;
  padding: 40px 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0,230,196,0.08), rgba(155,107,255,0.05));
  border: 1px solid var(--rule-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.sx-mid-cta__rail {
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 4px;
  background: var(--grad-neon);
  box-shadow: 0 0 16px var(--cyan);
}
.sx-mid-cta__text { flex: 1; min-width: 280px; }
.sx-mid-cta__kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--cyan);
  margin-bottom: 8px;
  font-weight: 600;
}
.sx-mid-cta__title { font-size: 22px; font-weight: 800; color: var(--ink); margin-bottom: 10px; letter-spacing: -0.01em; }
.sx-mid-cta__desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.9; word-break: auto-phrase; }
@media (max-width: 600px) { .sx-mid-cta { padding: 32px 24px; } .sx-mid-cta__title { font-size: 18px; } }

/* ============================================================
   ⑥ COMPARE
   ============================================================ */
.sx-compare { padding: 160px 0; }
.sx-compare__grid {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  gap: 12px;
  align-items: stretch;
  max-width: 1100px;
  margin: 0 auto;
}
.sx-cmp {
  padding: 36px 32px;
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}
.sx-cmp--before {
  background: var(--panel);
  border: 1px solid var(--rule);
  color: var(--ink-3);
}
.sx-cmp--after {
  background: linear-gradient(160deg, rgba(0,230,196,0.10), rgba(155,107,255,0.06));
  border: 1px solid var(--cyan);
  box-shadow: 0 30px 80px rgba(0,230,196,0.15);
}
.sx-cmp__tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  font-weight: 700;
  margin-bottom: 16px;
}
.sx-cmp--before .sx-cmp__tag { background: rgba(255,255,255,0.04); color: var(--ink-4); border: 1px solid var(--rule); }
.sx-cmp--after .sx-cmp__tag { background: var(--cyan); color: #061a18; }
.sx-cmp__title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.3;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.sx-cmp--before .sx-cmp__title { color: var(--ink-3); }
.sx-cmp__diagram {
  aspect-ratio: 16 / 9;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--rule);
  border-radius: 10px;
  margin-bottom: 24px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sx-cmp__diagram svg { width: 100%; height: 100%; }
.sx-cmp__list { display: flex; flex-direction: column; gap: 10px; }
.sx-cmp__list li {
  font-size: 13.5px;
  padding-left: 26px;
  position: relative;
  line-height: 1.75;
  color: var(--ink-3);
}
.sx-cmp__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--ink-4);
}
.sx-cmp--before .sx-cmp__list li::before {
  background: var(--warn);
  border-color: var(--warn);
  box-shadow: inset 0 0 0 3px var(--bg);
}
.sx-cmp--after .sx-cmp__list li { color: var(--ink-2); }
.sx-cmp--after .sx-cmp__list li::before {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 8px var(--cyan), inset 0 0 0 3px var(--bg);
}
.sx-cmp-arrow {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 10px;
  color: var(--cyan);
}
.sx-cmp-arrow svg {
  width: 44px; height: 44px;
  stroke: currentColor; fill: none; stroke-width: 2;
  filter: drop-shadow(0 0 10px var(--cyan));
  animation: sx-arrow 2s ease-in-out infinite;
}
.sx-cmp-arrow span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.28em;
  color: var(--cyan);
  font-weight: 700;
}
@keyframes sx-arrow {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(8px); }
}
@media (max-width: 860px) {
  .sx-compare__grid { grid-template-columns: 1fr; gap: 12px; }
  .sx-cmp-arrow { flex-direction: row; transform: rotate(90deg); padding: 8px 0; }
}

/* ============================================================
   ⑦ RESULTS
   ============================================================ */
.sx-results { padding: 160px 0; position: relative; overflow: hidden; }
.sx-results::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(500px 300px at 20% 20%, rgba(0,230,196,0.10), transparent 70%),
    radial-gradient(500px 300px at 85% 80%, rgba(200,255,79,0.08), transparent 70%);
  pointer-events: none;
}
.sx-big-nums {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 80px;
}
.sx-big-num {
  padding: 32px 24px 24px;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: rgba(12,17,27,0.6);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.sx-big-num:hover { border-color: rgba(0,230,196,0.35); transform: translateY(-3px); }
.sx-big-num::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40%; height: 2px;
  background: var(--grad-neon);
  box-shadow: 0 0 8px var(--cyan);
}
.sx-big-num__v {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 60px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  margin-bottom: 12px;
}
.sx-big-num__v em {
  font-style: normal;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-big-num__v small {
  font-family: var(--font-jp);
  font-size: 0.26em;
  color: var(--ink-3);
  margin-left: 6px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.sx-big-num__l { font-size: 12px; color: var(--ink-3); line-height: 1.7; letter-spacing: 0.02em; margin-bottom: 16px; }
.sx-big-num__bar {
  height: 3px;
  background: rgba(0,230,196,0.08);
  overflow: hidden;
  border-radius: 100px;
}
.sx-big-num__bar-in {
  height: 100%;
  background: var(--grad-neon);
  box-shadow: 0 0 8px var(--cyan);
  transform-origin: left;
  transform: scaleX(0);
  width: var(--w, 80%);
  transition: transform 1.6s var(--ease-expo) 0.4s;
}
.sx-big-num.is-in .sx-big-num__bar-in { transform: scaleX(1); }

@media (max-width: 900px) { .sx-big-nums { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .sx-big-nums { grid-template-columns: 1fr; } }

/* Cases */
.sx-cases-wrap {
  margin: 0 calc(-6vw);
  padding: 0 6vw;
}
.sx-cases-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.sx-cases-head .sx-label { margin-bottom: 0; }
.sx-cases-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--ink-4);
  font-weight: 600;
}
.sx-cases {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 20px;
  cursor: grab;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan-dim) transparent;
}
.sx-cases.is-grab { cursor: grabbing; }
.sx-cases::-webkit-scrollbar { height: 6px; }
.sx-cases::-webkit-scrollbar-track { background: transparent; }
.sx-cases::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 100px; }
.sx-case {
  flex: 0 0 420px;
  scroll-snap-align: start;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
  position: relative;
}
.sx-case:hover { border-color: rgba(0,230,196,0.35); transform: translateY(-4px); }
.sx-case__media {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  background: var(--bg-3);
}
.sx-case__media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.7) contrast(1.05); transition: transform 0.8s var(--ease); }
.sx-case:hover .sx-case__media img { transform: scale(1.05); }
.sx-case__media::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5,7,11,0.88) 100%);
  z-index: 2;
}
.sx-case__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(0,230,196,0.22) 0%, transparent 50%);
  mix-blend-mode: overlay;
  z-index: 3;
}
.sx-case__media-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,230,196,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,230,196,0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  z-index: 4;
  pointer-events: none;
}
.sx-case__body { padding: 24px 28px; }
.sx-case__meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
}
.sx-case h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 12px; line-height: 1.45; letter-spacing: -0.01em; }
.sx-case p { font-size: 13px; color: var(--ink-2); line-height: 1.85; word-break: auto-phrase; }
.sx-case__metric {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 16px;
  padding: 8px 14px;
  border-radius: 100px;
  background: rgba(0,230,196,0.08);
  border: 1px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.08em;
}
@media (max-width: 600px) { .sx-case { flex-basis: 86vw; } }

/* ============================================================
   ⑧ PRICING
   ============================================================ */
.sx-pricing { padding: 160px 0; }
.sx-plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 1180px;
  margin: 0 auto;
  align-items: stretch;
}
.sx-plan {
  position: relative;
  padding: 40px 32px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  transition: transform 0.5s var(--ease), border-color 0.4s var(--ease);
  overflow: hidden;
}
.sx-plan::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--rule-2);
}
.sx-plan:hover { border-color: rgba(0,230,196,0.35); transform: translateY(-4px); }
.sx-plan--rec {
  background: linear-gradient(165deg, rgba(0,230,196,0.10), rgba(155,107,255,0.06));
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 30px 80px rgba(0,230,196,0.15);
}
.sx-plan--rec::before { background: var(--grad-neon); box-shadow: 0 0 16px var(--cyan); }
.sx-plan__rec {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 20px;
  background: var(--cyan);
  color: #061a18;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  font-weight: 800;
  border-radius: 100px;
  box-shadow: 0 10px 30px rgba(0,230,196,0.35);
  white-space: nowrap;
}
.sx-plan__name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.sx-plan--rec .sx-plan__name {
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-plan__for { font-size: 12.5px; color: var(--ink-3); margin-bottom: 28px; line-height: 1.7; }
.sx-plan__price {
  font-family: var(--font-display);
  font-size: clamp(40px, 4.2vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 6px;
}
.sx-plan__price em {
  font-style: normal;
}
.sx-plan--rec .sx-plan__price em {
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-plan__price small {
  font-family: var(--font-jp);
  font-size: 0.28em;
  color: var(--ink-3);
  font-weight: 600;
  letter-spacing: 0;
}
.sx-plan__note { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-4); margin-bottom: 28px; letter-spacing: 0.1em; }
.sx-plan__hr {
  height: 1px;
  background: var(--rule);
  margin-bottom: 24px;
}
.sx-plan ul { display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; flex: 1; }
.sx-plan ul li {
  font-size: 13px;
  color: var(--ink-2);
  padding-left: 24px;
  position: relative;
  line-height: 1.75;
}
.sx-plan ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 12px; height: 6px;
  border-left: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}
.sx-plan ul li.is-off { color: var(--ink-4); }
.sx-plan ul li.is-off::before {
  border-color: var(--ink-5);
  transform: rotate(-45deg);
}
.sx-plan__cta {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  padding: 16px 24px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
  border: 1px solid var(--rule-2);
  color: var(--ink);
  transition: all 0.35s var(--ease);
}
.sx-plan__cta svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform 0.3s var(--ease); }
.sx-plan__cta:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 10px 30px rgba(0,230,196,0.2); }
.sx-plan__cta:hover svg { transform: translateX(4px); }
.sx-plan--rec .sx-plan__cta { background: var(--cyan); color: #061a18; border-color: var(--cyan); }
.sx-plan--rec .sx-plan__cta:hover { background: var(--ink); color: var(--cyan); }

.sx-pricing__notes {
  margin-top: 48px;
  font-size: 12px;
  color: var(--ink-4);
  line-height: 1.95;
  text-align: center;
}
.sx-pricing__notes a { color: var(--cyan); border-bottom: 1px dotted var(--cyan); }

@media (max-width: 900px) { .sx-plans { grid-template-columns: 1fr; gap: 20px; } }

/* ============================================================
   ⑨ FLOW
   ============================================================ */
.sx-flow { padding: 140px 0; }
.sx-flow__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  position: relative;
}
.sx-flow__steps::before {
  content: "";
  position: absolute;
  top: 42px;
  left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.4;
}
.sx-flow-step {
  position: relative;
  padding: 28px 20px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 14px;
  text-align: center;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.sx-flow-step:hover { border-color: rgba(0,230,196,0.3); transform: translateY(-3px); }
.sx-flow-step__num {
  width: 52px; height: 52px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.02em;
  box-shadow: 0 0 14px rgba(0,230,196,0.25);
  position: relative;
}
.sx-flow-step__num::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px dashed rgba(0,230,196,0.35);
  animation: sx-rotate 10s linear infinite;
}
@keyframes sx-rotate { to { transform: rotate(360deg); } }
.sx-flow-step h3 { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.sx-flow-step p { font-size: 12.5px; color: var(--ink-3); line-height: 1.85; }
@media (max-width: 900px) { .sx-flow__steps { grid-template-columns: 1fr 1fr; } .sx-flow__steps::before { display: none; } }
@media (max-width: 520px) { .sx-flow__steps { grid-template-columns: 1fr; } }

/* ============================================================
   ⑩ FAQ
   ============================================================ */
.sx-faq { padding: 140px 0; }
.sx-faq__list { max-width: 980px; margin: 0 auto; }
.sx-faq__item {
  border-top: 1px solid var(--rule);
  position: relative;
}
.sx-faq__item:last-child { border-bottom: 1px solid var(--rule); }
.sx-faq__item::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  transition: width 0.6s var(--ease-out);
}
.sx-faq__item.is-open::before { width: 100%; }
.sx-faq__q {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 28px 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  line-height: 1.5;
  transition: color 0.3s var(--ease);
  width: 100%;
}
.sx-faq__q:hover { color: var(--cyan); }
.sx-faq__q-n {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  font-weight: 700;
  min-width: 32px;
}
.sx-faq__q-txt { flex: 1; }
.sx-faq__q-icon {
  width: 28px; height: 28px;
  position: relative;
  flex-shrink: 0;
}
.sx-faq__q-icon::before,
.sx-faq__q-icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.4s var(--ease);
}
.sx-faq__q-icon::before { top: 50%; left: 4px; right: 4px; height: 2px; transform: translateY(-50%); }
.sx-faq__q-icon::after { left: 50%; top: 4px; bottom: 4px; width: 2px; transform: translateX(-50%); }
.sx-faq__item.is-open .sx-faq__q-icon::after { transform: translateX(-50%) rotate(90deg); }

.sx-faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease);
}
.sx-faq__a-inner {
  padding: 0 8px 28px 62px;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 2;
  word-break: auto-phrase;
}
.sx-faq__a-inner a { color: var(--cyan); border-bottom: 1px dotted var(--cyan); }

@media (max-width: 700px) {
  .sx-section__head--split { grid-template-columns: 1fr; gap: 20px; }
  .sx-faq__a-inner { padding-left: 8px; }
}

/* ============================================================
   ⑪ PARTNER
   ============================================================ */
.sx-partner { padding: 140px 0; }
.sx-partner__box {
  max-width: 1080px;
  margin: 0 auto;
  padding: 44px 40px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}
.sx-partner__box::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), transparent);
}
.sx-partner__tag {
  position: absolute;
  top: -14px;
  left: 32px;
  padding: 8px 16px;
  background: var(--violet);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  font-weight: 700;
  border-radius: 100px;
  box-shadow: 0 10px 30px rgba(155,107,255,0.35);
}
.sx-partner__grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.sx-partner__row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 28px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  align-items: center;
}
.sx-partner__row:last-child { border-bottom: 0; }
.sx-partner__row-l {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  font-weight: 700;
  color: var(--violet);
}
.sx-partner__row-v { font-size: 14px; color: var(--ink-2); line-height: 1.8; word-break: auto-phrase; }
.sx-partner__note { margin-top: 24px; padding-top: 20px; border-top: 1px dashed var(--rule); font-size: 12px; color: var(--ink-4); line-height: 1.85; }
@media (max-width: 700px) {
  .sx-partner__row { grid-template-columns: 1fr; gap: 6px; padding: 14px 0; }
  .sx-partner__box { padding: 36px 24px; }
}

/* ============================================================
   ⑫ FINAL CTA
   ============================================================ */
.sx-final {
  padding: 180px 0 200px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.sx-final::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 400px at 50% 50%, rgba(0,230,196,0.18), transparent 70%);
  pointer-events: none;
}
.sx-final__huge {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.08;
}
.sx-final__huge span {
  font-family: var(--font-display);
  font-size: clamp(120px, 22vw, 320px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.88;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
  white-space: nowrap;
  animation: sx-huge-drift 18s ease-in-out infinite alternate;
}
.sx-final__huge span:nth-child(2) { animation-direction: alternate-reverse; animation-duration: 24s; }
@keyframes sx-huge-drift {
  0% { transform: translateX(-4%); }
  100% { transform: translateX(4%); }
}
.sx-final .sx-section__idx { margin-bottom: 14px; }
.sx-final h2 { margin-bottom: 24px; position: relative; z-index: 2; }
.sx-final .sx-lead { margin: 0 auto 44px; position: relative; z-index: 2; }
.sx-final__sub { margin-top: 20px; font-family: var(--font-mono); font-size: 11px; color: var(--ink-4); letter-spacing: 0.12em; position: relative; z-index: 2; }

/* ============================================================
   スクロールトップ（磁石）
   ============================================================ */
.sx-totop {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  --mx: 0px; --my: 0px;
  transform: translate(var(--mx,0px), calc(20px + var(--my, 0px)));
  transition: opacity 0.4s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease);
  box-shadow: 0 10px 30px rgba(0,230,196,0.2);
}
.sx-totop.is-show { opacity: 1; transform: translate(var(--mx,0px), var(--my,0px)); }
.sx-totop:hover { background: var(--cyan); color: var(--bg); box-shadow: 0 16px 40px rgba(0,230,196,0.45); }
.sx-totop svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }
@media (max-width: 600px) { .sx-totop { bottom: 20px; right: 20px; width: 46px; height: 46px; } }

/* ============================================================
   MAGNETIC CURSOR
   ============================================================ */
.sx-cursor,
.sx-cursor__ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s, width 0.25s var(--ease), height 0.25s var(--ease), background 0.25s var(--ease);
  mix-blend-mode: screen;
}
.sx-cursor {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px var(--cyan);
}
.sx-cursor__ring {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(0,230,196,0.55);
  backdrop-filter: blur(2px);
}
.sx-cursor.is-on, .sx-cursor__ring.is-on { opacity: 1; }
.sx-cursor__ring.is-hover {
  width: 72px; height: 72px;
  background: rgba(0,230,196,0.08);
  border-color: var(--cyan);
}
@media (hover: none), (max-width: 900px) {
  .sx-cursor, .sx-cursor__ring { display: none; }
}

/* mobile override for section__head split */
@media (max-width: 780px) {
  #seo_page .sx-section__head--split {
    grid-template-columns: 1fr;
    gap: 16px;
    text-align: left;
  }
}

/* hero ヒーロー微調整 */
@media (max-width: 1400px) and (min-width: 1025px) {
  .sx-hero { padding: 80px 0 60px; }
  .sx-hero__kpi { gap: 18px; padding-top: 24px; }
  .sx-hero__cta { margin-bottom: 40px; }
}

/* ============================================================
   GLOBAL NAV（sx-nav）  — sx トーン専用ヘッダー
   横展開用 CSS 変数で accent / bg を切替可能に
   ============================================================ */
#seo_page {
  --sx-nav-accent: var(--cyan);
  --sx-nav-accent-dim: var(--cyan-dim);
  --sx-nav-bg: rgba(5,7,11,0.45);
  --sx-nav-bg-scroll: rgba(5,7,11,0.88);
  --sx-nav-border: rgba(255,255,255,0.06);
  --sx-nav-border-scroll: rgba(0,230,196,0.18);
  --sx-nav-h: 68px;
  --sx-nav-h-sp: 58px;
}

.sx-nav {
  position: fixed;
  top: 28px;
  left: 0;
  right: 0;
  z-index: 90;
  height: var(--sx-nav-h);
  background: var(--sx-nav-bg);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--sx-nav-border);
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease), top 0.35s var(--ease), height 0.25s var(--ease);
  will-change: background, box-shadow;
}
.sx-nav.is-scrolled {
  top: 0;
  background: var(--sx-nav-bg-scroll);
  border-bottom-color: var(--sx-nav-border-scroll);
  box-shadow: 0 10px 40px rgba(0,0,0,0.5), 0 1px 0 rgba(0,230,196,0.08) inset;
  height: calc(var(--sx-nav-h) - 4px);
}
.sx-nav__inner {
  max-width: 1400px;
  height: 100%;
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}
.sx-nav__line {
  position: absolute;
  left: 0; bottom: -1px;
  height: 1px;
  width: 0;
  background: linear-gradient(90deg, transparent, var(--sx-nav-accent), transparent);
  opacity: 0;
  transition: width 0.6s var(--ease), opacity 0.4s var(--ease);
}
.sx-nav.is-scrolled .sx-nav__line { width: 100%; opacity: 0.6; }

.sx-nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  line-height: 1;
  padding: 6px 2px;
  position: relative;
  transition: color 0.25s var(--ease);
}
.sx-nav__logo:hover { color: var(--sx-nav-accent); }
.sx-nav__logo-mark {
  display: inline-flex;
  color: var(--sx-nav-accent);
  filter: drop-shadow(0 0 6px var(--cyan-glow));
}
.sx-nav__logo-word { display: inline-block; }
.sx-nav__logo-tail {
  display: inline-block;
  color: var(--sx-nav-accent);
  animation: sx-nav-caret 1s steps(2) infinite;
  margin-left: 2px;
  transform: translateY(-1px);
}
@keyframes sx-nav-caret { 0%,49% { opacity: 1; } 50%,100% { opacity: 0; } }

.sx-nav__menu { justify-self: center; }
.sx-nav__list {
  display: flex;
  gap: 2px;
  align-items: center;
}
.sx-nav__item { position: relative; }
.sx-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  white-space: nowrap;
  border-radius: 2px;
  position: relative;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.sx-nav__link--btn { cursor: pointer; }
.sx-nav__link::before {
  content: "";
  position: absolute;
  left: 16px; right: 16px;
  bottom: 4px;
  height: 1px;
  background: var(--sx-nav-accent);
  transform-origin: right center;
  transform: scaleX(0);
  transition: transform 0.4s var(--ease);
}
.sx-nav__link:hover,
.sx-nav__link:focus-visible,
.sx-nav__item--mega[data-open="true"] > .sx-nav__link {
  color: var(--ink);
}
.sx-nav__link:hover::before,
.sx-nav__link:focus-visible::before,
.sx-nav__item--mega[data-open="true"] > .sx-nav__link::before {
  transform: scaleX(1);
  transform-origin: left center;
}
.sx-nav__link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0,230,196,0.35);
}
.sx-nav__num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--sx-nav-accent);
  letter-spacing: 0.12em;
  opacity: 0.85;
}
.sx-nav__lbl {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.sx-nav__caret {
  display: inline-flex;
  margin-left: 2px;
  transition: transform 0.3s var(--ease);
  color: var(--ink-3);
}
.sx-nav__item--mega[data-open="true"] .sx-nav__caret { transform: rotate(180deg); color: var(--sx-nav-accent); }

.sx-nav__cta-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.sx-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  background: var(--sx-nav-accent);
  color: #05070b;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 3px;
  position: relative;
  overflow: hidden;
  --mx: 0px; --my: 0px;
  transform: translate(var(--mx,0), var(--my,0));
  transition: transform 0.25s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
  box-shadow: 0 4px 20px rgba(0,230,196,0.25);
}
.sx-nav__cta::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.35) 50%, transparent 100%);
  transform: translateX(-110%);
  transition: transform 0.8s var(--ease);
}
.sx-nav__cta:hover { box-shadow: 0 8px 30px rgba(0,230,196,0.5); background: var(--cyan-2); }
.sx-nav__cta:hover::before { transform: translateX(110%); }
.sx-nav__cta-arrow { display: inline-flex; }
.sx-nav__cta-arrow svg { width: 14px; height: 14px; }

.sx-nav__burger {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: rgba(255,255,255,0.02);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.sx-nav__burger-box {
  position: relative;
  width: 20px; height: 14px;
  display: inline-block;
}
.sx-nav__burger-box span {
  position: absolute; left: 0;
  width: 100%; height: 1.5px;
  background: currentColor;
  transition: transform 0.35s var(--ease), opacity 0.25s var(--ease), top 0.35s var(--ease);
}
.sx-nav__burger-box span:nth-child(1) { top: 0; }
.sx-nav__burger-box span:nth-child(2) { top: 6px; }
.sx-nav__burger-box span:nth-child(3) { top: 12px; }
.sx-nav__burger:hover { border-color: var(--sx-nav-accent); color: var(--sx-nav-accent); }
.sx-nav__burger[aria-expanded="true"] .sx-nav__burger-box span:nth-child(1) { top: 6px; transform: rotate(45deg); }
.sx-nav__burger[aria-expanded="true"] .sx-nav__burger-box span:nth-child(2) { opacity: 0; }
.sx-nav__burger[aria-expanded="true"] .sx-nav__burger-box span:nth-child(3) { top: 6px; transform: rotate(-45deg); }

/* MEGA MENU */
.sx-mega {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translate(-50%, -8px);
  width: min(880px, calc(100vw - 40px));
  background: rgba(8,12,20,0.96);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--sx-nav-border-scroll);
  border-radius: 3px;
  padding: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(0,230,196,0.08) inset;
}
.sx-mega::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sx-nav-accent), transparent);
  opacity: 0.6;
}
.sx-nav__item--mega[data-open="true"] .sx-mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.sx-mega__inner { padding: 22px 22px 16px; }
.sx-mega__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px 14px;
  border-bottom: 1px dashed var(--rule-2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
}
.sx-mega__head-k { color: var(--sx-nav-accent); }
.sx-mega__head-v { color: var(--ink-3); }
.sx-mega__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  margin-top: 14px;
}
.sx-mega__card {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 14px;
  border: 1px solid transparent;
  border-radius: 3px;
  position: relative;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.sx-mega__card::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 0; height: 1px;
  background: var(--sx-nav-accent);
  transform: translateY(-50%);
  transition: width 0.35s var(--ease);
}
.sx-mega__card:hover {
  background: rgba(0,230,196,0.06);
  border-color: var(--sx-nav-border-scroll);
  transform: translateX(2px);
}
.sx-mega__card:hover::before { width: 14px; }
.sx-mega__card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0,230,196,0.4);
}
.sx-mega__card.is-current {
  background: rgba(0,230,196,0.08);
  border-color: var(--sx-nav-accent);
}
.sx-mega__card.is-current .sx-mega__card-ttl { color: var(--sx-nav-accent); }
.sx-mega__card-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--sx-nav-accent);
  letter-spacing: 0.12em;
  min-width: 18px;
}
.sx-mega__card-icon {
  display: inline-flex;
  width: 32px; height: 32px;
  align-items: center;
  justify-content: center;
  color: var(--ink-2);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--rule);
  border-radius: 3px;
  flex-shrink: 0;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.sx-mega__card:hover .sx-mega__card-icon,
.sx-mega__card.is-current .sx-mega__card-icon {
  color: var(--sx-nav-accent);
  border-color: var(--sx-nav-accent);
  background: rgba(0,230,196,0.04);
}
.sx-mega__card-icon svg { width: 18px; height: 18px; }
.sx-mega__card-body { display: flex; flex-direction: column; gap: 3px; }
.sx-mega__card-ttl {
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1.3;
}
.sx-mega__card-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  line-height: 1.4;
}
.sx-mega__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px 2px;
  margin-top: 10px;
  border-top: 1px dashed var(--rule-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}
.sx-mega__foot-k { color: var(--ink-4); }
.sx-mega__foot-link {
  color: var(--sx-nav-accent);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  transition: opacity 0.25s var(--ease);
}
.sx-mega__foot-link:hover { opacity: 0.75; }

/* MOBILE OVERLAY */
.sx-mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* 100vh fallback → 100dvh 優先で iOS Safari のアドレスバー伸縮問題を回避 */
  height: 100vh;
  height: 100dvh;
  width: 100vw;
  z-index: 95;
  overflow: hidden; /* 外側では縦スクロールしない（内側の __inner でスクロール） */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}
.sx-mobile[hidden] { display: none; }
.sx-mobile.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
/* 背景レイヤーは overlay 直下に fixed/inset:0 で貼り付ける。
   __inner がスクロールしても背景は動かず、下のページは透けない。 */
.sx-mobile__bg {
  position: absolute; inset: 0;
  background: radial-gradient(900px 700px at 20% 0%, rgba(0,230,196,0.12), transparent 60%),
              radial-gradient(800px 600px at 80% 100%, rgba(155,107,255,0.10), transparent 65%),
              #05070b;
  z-index: 0;
}
.sx-mobile__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9), transparent 88%);
  z-index: 1;
}
.sx-mobile__scan {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.016) 0px, rgba(255,255,255,0.016) 1px, transparent 1px, transparent 4px);
  pointer-events: none;
  z-index: 2;
}
.sx-mobile__inner {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  /* __inner 自体が縦スクロールを担う。背景は固定のまま残る */
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding:
    calc(var(--sx-nav-h-sp) + 56px + env(safe-area-inset-top)) 28px
    calc(64px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* 閉じるボタン（右上 fixed・safe-area 内） */
.sx-mobile__close {
  position: absolute;
  top: calc(14px + env(safe-area-inset-top));
  right: calc(14px + env(safe-area-inset-right));
  z-index: 5;
  width: 48px;
  height: 48px;
  padding: 0;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: rgba(5,7,11,0.55);
  border: 1px solid rgba(0,230,196,0.28);
  border-radius: 50%;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
}
.sx-mobile__close:hover,
.sx-mobile__close:focus-visible {
  color: var(--sx-nav-accent);
  border-color: var(--sx-nav-accent);
  background: rgba(0,230,196,0.10);
  outline: none;
  transform: rotate(90deg);
}
.sx-mobile__close-box {
  position: relative;
  width: 18px;
  height: 18px;
  display: inline-block;
}
.sx-mobile__close-box span {
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
}
.sx-mobile__close-box span:nth-child(1) { transform: translateY(-50%) rotate(45deg); }
.sx-mobile__close-box span:nth-child(2) { transform: translateY(-50%) rotate(-45deg); }
.sx-mobile__close-lbl {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  line-height: 1;
  color: var(--sx-nav-accent);
  display: none; /* モバイルでは ✕ アイコンのみ。余裕がある場合のみラベル表示 */
}
.sx-mobile__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--rule-2);
}
.sx-mobile__code { color: var(--sx-nav-accent); }
.sx-mobile__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sx-mobile__item > a,
.sx-mobile__group-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  position: relative;
  transition: color 0.25s var(--ease), padding-left 0.3s var(--ease);
}
.sx-mobile__item > a:hover,
.sx-mobile__item > a:focus-visible {
  color: var(--sx-nav-accent);
  padding-left: 14px;
}
.sx-mobile__item > a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0,230,196,0.35);
}
.sx-mobile__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--sx-nav-accent);
  letter-spacing: 0.14em;
  line-height: 1;
  min-width: 28px;
}
.sx-mobile__lbl { flex: 1; }
.sx-mobile__arrow {
  font-size: 18px;
  color: var(--ink-4);
  transition: transform 0.3s var(--ease), color 0.25s var(--ease);
}
.sx-mobile__item > a:hover .sx-mobile__arrow {
  color: var(--sx-nav-accent);
  transform: translateX(6px);
}
.sx-mobile__sub {
  display: flex;
  flex-direction: column;
  padding: 8px 0 4px 44px;
  gap: 2px;
  border-bottom: 1px solid var(--rule);
}
.sx-mobile__sub li a {
  display: flex;
  gap: 12px;
  padding: 10px 6px;
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  transition: color 0.25s var(--ease), padding-left 0.3s var(--ease);
}
.sx-mobile__sub li a:hover { color: var(--sx-nav-accent); padding-left: 10px; }
.sx-mobile__sub li a.is-current { color: var(--sx-nav-accent); }
.sx-mobile__sub li a.is-current::after {
  content: "CURRENT";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  padding: 2px 6px;
  border: 1px solid var(--sx-nav-accent);
  border-radius: 2px;
}
.sx-mobile__sub-k {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-4);
  letter-spacing: 0.12em;
  min-width: 20px;
}
.sx-mobile__cta {
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
}
.sx-mobile__cta .sx-btn { justify-content: center; }
.sx-mobile p.sx-mobile__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  letter-spacing: 0.12em;
  text-align: center;
  border-bottom: 0;
  padding: 0;
}

.sx-mobile.is-open .sx-mobile__item,
.sx-mobile.is-open .sx-mobile__cta { animation: sx-mobile-in 0.55s var(--ease-out) both; }
.sx-mobile.is-open .sx-mobile__item:nth-child(1) { animation-delay: 0.05s; }
.sx-mobile.is-open .sx-mobile__item:nth-child(2) { animation-delay: 0.12s; }
.sx-mobile.is-open .sx-mobile__item:nth-child(3) { animation-delay: 0.19s; }
.sx-mobile.is-open .sx-mobile__item:nth-child(4) { animation-delay: 0.26s; }
.sx-mobile.is-open .sx-mobile__cta { animation-delay: 0.34s; }
@keyframes sx-mobile-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 背景スクロール禁止（iOS Safari で overflow:hidden だけでは弾性スクロールが残るので
   JS 側で position:fixed + top:-scrollY も併用する） */
body.sx-nav-locked {
  overflow: hidden;
  overscroll-behavior: contain;
  touch-action: none;
}

@media (max-width: 1100px) {
  .sx-nav__link { padding: 10px 12px; font-size: 12px; }
  .sx-nav__num { display: none; }
}
@media (max-width: 900px) {
  .sx-nav { height: var(--sx-nav-h-sp); }
  .sx-nav.is-scrolled { height: calc(var(--sx-nav-h-sp) - 2px); }
  .sx-nav__inner { padding: 0 18px; gap: 12px; grid-template-columns: auto 1fr auto; }
  .sx-nav__menu { display: none; }
  .sx-nav__cta {
    padding: 9px 14px;
    font-size: 11px;
    gap: 6px;
  }
  .sx-nav__cta-arrow svg { width: 12px; height: 12px; }
  .sx-nav__burger { display: inline-flex; }
  .sx-nav__logo { font-size: 14px; letter-spacing: 0.2em; }
}
@media (max-width: 480px) {
  .sx-nav__cta .sx-nav__cta-label { display: none; }
  .sx-nav__cta {
    padding: 10px;
    width: 40px; height: 40px;
    justify-content: center;
  }
  .sx-nav__logo-word { font-size: 13px; }
}

/* ============================================================
   GLOBAL FOOTER（sx-footer）
   ============================================================ */
.sx-footer {
  position: relative;
  background: linear-gradient(180deg, var(--bg) 0%, #03050a 100%);
  color: var(--ink-2);
  overflow: hidden;
  margin-top: 0;
  padding: 0;
  z-index: 2;
}
.sx-footer__line {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 20%, var(--cyan) 80%, transparent 100%);
  opacity: 0.45;
}
.sx-footer__grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 30%, rgba(0,0,0,0.8), transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, rgba(0,0,0,0.8), transparent 85%);
  pointer-events: none;
}

.sx-footer__top {
  position: relative;
  padding: 96px 0 76px;
  border-bottom: 1px dashed var(--rule);
  text-align: center;
}
.sx-footer__top-inner { max-width: 860px; margin: 0 auto; padding: 0 24px; }
.sx-footer__top .sx-label { justify-content: center; margin-bottom: 18px; }
.sx-footer__tagline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 64px);
  letter-spacing: 0.06em;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 16px;
}
.sx-footer__tagline em {
  font-style: normal;
  background: var(--grad-neon);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sx-footer__lead {
  font-size: 15px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.9;
}
.sx-footer__cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px 32px;
}
.sx-footer__tel {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 6px 14px;
  border-left: 1px solid var(--rule-2);
  color: var(--ink);
  transition: color 0.25s var(--ease);
}
.sx-footer__tel:hover { color: var(--cyan); }
.sx-footer__tel-k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}
.sx-footer__tel-v {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.06em;
}
.sx-footer__tel-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-4);
  letter-spacing: 0.12em;
}

.sx-footer__mid {
  position: relative;
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--rule);
}
.sx-footer__mid-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 56px;
}
.sx-footer__brand { max-width: 380px; }
.sx-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.22em;
  color: var(--ink);
  margin-bottom: 14px;
}
.sx-footer__logo-mark { color: var(--cyan); filter: drop-shadow(0 0 8px var(--cyan-glow)); }
.sx-footer__brand-catch {
  font-size: 14px;
  color: var(--cyan);
  letter-spacing: 0.12em;
  margin-bottom: 22px;
  font-weight: 500;
}
.sx-footer__info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
}
.sx-footer__info-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  align-items: baseline;
}
.sx-footer__info-row dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
}
.sx-footer__info-row dd {
  color: var(--ink-2);
  margin: 0;
}
.sx-footer__info-row dd a {
  color: var(--ink-2);
  transition: color 0.25s var(--ease);
  border-bottom: 1px dashed transparent;
}
.sx-footer__info-row dd a:hover { color: var(--cyan); border-bottom-color: var(--cyan-dim); }

.sx-footer__nav {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 32px;
}
.sx-footer__col-ttl {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 18px;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule-2);
  width: 100%;
}
.sx-footer__col-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cyan);
  letter-spacing: 0.12em;
}
.sx-footer__col-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sx-footer__col-list li a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  transition: color 0.25s var(--ease), padding-left 0.3s var(--ease);
  position: relative;
}
.sx-footer__col-list li a::before {
  content: "";
  width: 0; height: 1px;
  background: var(--cyan);
  transition: width 0.3s var(--ease);
}
.sx-footer__col-list li a:hover { color: var(--cyan); padding-left: 2px; }
.sx-footer__col-list li a:hover::before { width: 10px; }
.sx-footer__col-list li a.is-current { color: var(--cyan); }
.sx-footer__col-list li a.is-current::before { width: 10px; }

.sx-footer__sns li a { gap: 12px; }
.sx-footer__sns li a svg {
  width: 18px; height: 18px;
  color: var(--ink-3);
  transition: color 0.25s var(--ease);
}
.sx-footer__sns li a:hover svg { color: var(--cyan); }

.sx-footer__bottom {
  position: relative;
  padding: 22px 0 26px;
}
.sx-footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}
.sx-footer__copy {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-4);
}
.sx-footer__legal {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}
.sx-footer__legal li a {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  transition: color 0.25s var(--ease);
}
.sx-footer__legal li a:hover { color: var(--cyan); }
.sx-footer__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
}
.sx-footer__status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: sx-footer-dot 1.6s ease-in-out infinite;
}
@keyframes sx-footer-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 10px var(--cyan); }
  50% { opacity: 0.5; box-shadow: 0 0 4px var(--cyan); }
}

.sx-footer [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.sx-footer [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .sx-footer__mid-inner { grid-template-columns: 1fr; gap: 48px; }
  .sx-footer__brand { max-width: none; }
  .sx-footer__nav { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .sx-footer__top { padding: 72px 0 60px; }
  .sx-footer__mid { padding: 56px 0 44px; }
  .sx-footer__cta-row { flex-direction: column; gap: 20px; align-items: stretch; }
  .sx-footer__cta-row .sx-btn { justify-content: center; }
  .sx-footer__tel { border-left: 0; border-top: 1px solid var(--rule-2); padding: 14px 0 0; align-items: center; text-align: center; }
  .sx-footer__nav { grid-template-columns: 1fr; gap: 28px; }
  .sx-footer__bottom-inner { justify-content: center; text-align: center; flex-direction: column; }
  .sx-footer__legal { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .sx-nav, .sx-mega, .sx-mobile, .sx-nav__cta, .sx-mega__card, .sx-footer__status-dot,
  .sx-nav__logo-tail { animation: none !important; transition: none !important; }
}

/* /seo 専用：WP smooth-scroll back-to-top プラグインを非表示
   sx-* ナビの世界観と競合するため、他ページには影響させない body クラススコープで限定 */
body.page-id-2719 .smooth-back-to-top-button,
body.page-template-page-seo .smooth-back-to-top-button,
body.page-template-page-seo-php .smooth-back-to-top-button {
  display: none !important;
}