:root {
  /* トップページと統一したカラーシステム */
  --sss-black:  #1a1a1a;
  --sss-gray:   #f4f4f4;
  --sss-silver: #8e8e93;
  --sss-gold:   #c5a059;
  /* 旧エイリアス（既存ページとの互換性維持） */
  --sss-iron:   #1a1a1a;
  --sss-fresh:  #c5a059;
  --sss-steel:  #8e8e93;
  --sss-canvas: #f4f4f4;
  --sss-alert:  #E53E3E;
}

body {
  font-family: "Yu Gothic", "Yu Gothic UI", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
  background-color: #fff;
  color: var(--sss-black);
  overflow-x: hidden;
  font-feature-settings: "palt";
}

/* 新カラーユーティリティ */
.bg-sss-black  { background-color: var(--sss-black); }
.bg-sss-gray   { background-color: var(--sss-gray); }
.bg-sss-silver { background-color: var(--sss-silver); }
.bg-sss-gold   { background-color: var(--sss-gold); }
.text-sss-black  { color: var(--sss-black); }
.text-sss-gray   { color: var(--sss-gray); }
.text-sss-silver { color: var(--sss-silver); }
.text-sss-gold   { color: var(--sss-gold); }
.border-sss-gold { border-color: var(--sss-gold); }

/* 新フォントユーティリティ */
.font-eng     { font-family: "Times New Roman", Georgia, serif; }
.font-jp-serif{ font-family: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Times New Roman", serif; }
.font-jp-sans { font-family: "Yu Gothic", "Yu Gothic UI", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif; }

/* Hardcoded Utility Classes (Fallback/Primary for Custom Colors) */
.bg-sss-iron {
  background-color: var(--sss-iron);
}

.bg-sss-fresh {
  background-color: var(--sss-fresh);
}

.bg-sss-steel {
  background-color: var(--sss-steel);
}

.bg-sss-canvas {
  background-color: var(--sss-canvas);
}

.text-sss-iron {
  color: var(--sss-iron);
}

.text-sss-fresh {
  color: var(--sss-fresh);
}

.text-sss-steel {
  color: var(--sss-steel);
}

.text-sss-canvas {
  color: var(--sss-canvas);
}

.text-sss-alert {
  color: var(--sss-alert);
}

.border-sss-iron {
  border-color: var(--sss-iron);
}

.border-sss-fresh {
  border-color: var(--sss-fresh);
}

.border-sss-steel {
  border-color: var(--sss-steel);
}

/* Typography */
h1,
h2,
h3,
.font-serif {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Times New Roman", serif;
}

.font-oswald {
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
}

/* Fluid Typography */
.text-fluid-h1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 5rem);
  line-height: 1.1;
}

.text-fluid-h2 {
  font-size: clamp(2rem, 4vw + 0.5rem, 3.5rem);
  line-height: 1.2;
}

/* Cinematic UI Utilities */
@keyframes pulse-slow {

  0%,
  100% {
    opacity: 0.6;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.1);
  }
}

.animate-pulse-slow {
  animation: pulse-slow 8s ease-in-out infinite;
}

.scanline-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(0, 0, 0, 0.02) 50%);
  background-size: 100% 4px;
  z-index: 5;
  pointer-events: none;
}

.glass-premium {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(26, 32, 44, 0.05);
}

/* Matte Noise Texture */
.noise-bg {
  position: relative;
}

.noise-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.03;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  z-index: 0;
}

/* Base Components Styles */
.btn-fresh {
  background-color: var(--sss-fresh);
  color: var(--sss-iron);
  padding: 1rem 2.5rem;
  font-weight: 700;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--sss-iron);
  box-shadow: 4px 4px 0px var(--sss-iron);
  position: relative;
  overflow: hidden;
}

.btn-fresh:hover {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0px var(--sss-iron);
}

.btn-iron {
  background-color: var(--sss-iron);
  color: var(--sss-canvas);
  padding: 1rem 2.5rem;
  font-weight: 700;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 4px 4px 0px var(--sss-fresh);
}

.btn-iron:hover {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0px var(--sss-fresh);
}

/* Marquee Animation */
@keyframes marquee {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

.animate-marquee {
  display: flex;
  width: max-content;
  animation: marquee 40s linear infinite;
}

/* Section Spacing */
.section-padding {
  padding-top: clamp(4rem, 8vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 8rem);
}

/* Custom Cursor */
.custom-cursor {
  width: 20px;
  height: 20px;
  background-color: var(--sss-fresh);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  transition: transform 0.1s ease;
}

/* Reveal Animation Initial State */
/* IMPORTANT: Default to VISIBLE. JS will handle hiding if available.
   This prevents content from being invisible if JS fails. */
.reveal {
  opacity: 1;
  /* Changed from 0 */
  transform: none;
  /* Changed from translateY(30px) */
  will-change: opacity, transform;
}

/* Helper class for JS to apply if needed, though GSAP usually handles inline styles */
.js-reveal-hidden {
  opacity: 0;
  transform: translateY(30px);
}

.reveal[style*="--stagger-delay"] {
  transition-delay: var(--stagger-delay, 0ms);
}