/* ============================================
   SOUND BRIDGE - Corporate Website
   ============================================ */

:root {
  --color-primary: #FCFD09;
  --color-primary-light: #fdfe3a;
  --color-primary-glow: rgba(252, 253, 9, 0.4);
  --color-primary-pale: #fefee0;
  --color-bg: #FAF9F6;
  --color-bg-light: #F1EFEA;
  --color-bg-dark: #888888;
  --color-bg-card: #ffffff;
  --color-text: #1C1C20;
  --color-text-muted: #5A5A62;
  --color-text-subtle: #8E8E96;
  --color-border: #DDD9D2;
  --font-en: 'Inter', sans-serif;
  --font-jp: 'Noto Sans JP', 'Inter', sans-serif;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; background: var(--color-bg-dark); }

body {
  font-family: var(--font-jp);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  line-height: 1.8;
}
body.is-loading { overflow: hidden; }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; }
.pc-only { display: none; }
@media (min-width: 768px) { .pc-only { display: inline; } }

.container {
  width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
@media (min-width: 768px) { .container { padding: 0 40px; } }
@media (min-width: 1200px) { .container { padding: 0 60px; } }

/* ======= Loader ======= */
#loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--color-bg-dark);
  display: flex; align-items: center; justify-content: center;
}
.loader-inner { text-align: center; }
.loader-logo { margin-bottom: 40px; }
.logo-svg { width: 80px; height: auto; margin-bottom: 12px; }
.loader-text {
  font-family: var(--font-en); font-weight: 800; font-size: 1.5rem;
  letter-spacing: 0.15em; color: var(--color-primary);
}
.loader-bar {
  width: 200px; height: 2px; background: #aaa;
  border-radius: 1px; overflow: hidden; margin: 0 auto;
}
.loader-bar-fill { width: 0%; height: 100%; background: var(--color-primary); border-radius: 1px; }

/* ======= Cursor Follower ======= */
#cursor-follower { display: none; }
@media (hover: hover) and (pointer: fine) {
  #cursor-follower {
    display: block; position: fixed; width: 20px; height: 20px;
    border: 1.5px solid var(--color-primary); border-radius: 50%;
    pointer-events: none; z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.3s var(--ease-out-expo), height 0.3s var(--ease-out-expo),
                background 0.3s var(--ease-out-expo), opacity 0.3s var(--ease-out-expo);
    opacity: 0;
  }
  #cursor-follower.active { opacity: 1; }
  #cursor-follower.hover { width: 50px; height: 50px; background: rgba(252, 253, 9, 0.15); }
}

/* ======= Header ======= */
#header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 20px 0;
  transition: background 0.4s ease, padding 0.4s ease, backdrop-filter 0.4s ease;
}
#header.scrolled {
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 1px 0 var(--color-border);
}
.header-inner {
  max-width: 1400px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
@media (min-width: 768px) { .header-inner { padding: 0 40px; } }

.header-logo { display: flex; align-items: center; gap: 8px; }
.header-logo-img { height: 32px; width: auto; transition: opacity 0.4s ease; }
.header-logo-img.logo-dark { display: none; }
#header.scrolled .header-logo-img.logo-yellow { display: none; }
#header.scrolled .header-logo-img.logo-dark { display: block; }
.header-logo-text {
  font-family: var(--font-en); font-weight: 800; font-size: 1.25rem;
  letter-spacing: 0.1em; color: var(--color-primary);
}
#header .nav-link { color: rgba(252,253,9,0.7); }
#header .nav-link:hover { color: #FCFD09; }
#header .header-logo-text { color: var(--color-primary); }
#header .menu-toggle span { background: #FCFD09; }
#header.scrolled .nav-link { color: var(--color-text-muted); }
#header.scrolled .nav-link:hover { color: var(--color-text); }
#header.scrolled .header-logo-text { color: var(--color-text); }
#header.scrolled .menu-toggle span { background: var(--color-text); }

.header-nav { display: none; gap: 32px; }
@media (min-width: 768px) { .header-nav { display: flex; } }

.nav-link {
  font-family: var(--font-en); font-weight: 500; font-size: 0.8rem;
  letter-spacing: 0.15em;
  position: relative; padding: 4px 0; transition: color 0.3s ease;
}
.nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 1px; background: var(--color-text);
  transition: width 0.3s var(--ease-out-expo);
}
.nav-link:hover::after { width: 100%; }

.menu-toggle {
  display: flex; flex-direction: column; gap: 6px;
  background: none; border: none; cursor: pointer; padding: 8px; z-index: 101;
}
@media (min-width: 768px) { .menu-toggle { display: none; } }
.menu-toggle span {
  display: block; width: 24px; height: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 99;
  background: rgba(136, 136, 136, 0.98); backdrop-filter: blur(20px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.4s ease;
}
.mobile-menu.active { opacity: 1; pointer-events: all; }
.mobile-menu-nav { display: flex; flex-direction: column; gap: 32px; text-align: center; }
.mobile-nav-link {
  font-family: var(--font-en); font-weight: 700; font-size: 1.5rem;
  letter-spacing: 0.15em; color: #FCFD09; transition: color 0.3s ease;
}
.mobile-nav-link:hover { color: rgba(252,253,9,0.6); }

/* ======= Hero Section ======= */
.hero {
  position: relative;
  height: 100vh; height: 100svh;
  overflow: hidden;
  background: #888888;
}

/* Wave canvas */
#hero-canvas {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

/* Dot pattern */
.hero-dots {
  position: absolute; inset: 0; z-index: 1;
  background-image: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* Content */
.hero-content {
  position: absolute; z-index: 5;
  top: 50%; left: 24px; right: 24px;
  transform: translateY(-50%);
}
@media (min-width: 768px) { .hero-content { left: 80px; right: 80px; } }

.hero-catch {
  font-weight: 900;
  font-size: clamp(1.1rem, 2.8vw, 2.8rem);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: #fff;
  margin-bottom: 28px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.6), 0 1px 4px rgba(0,0,0,0.4);
}
@media (min-width: 768px) { .hero-catch { white-space: nowrap; } }
.hero-line { display: block; overflow: hidden; visibility: hidden; }
.hero-line.is-split { visibility: visible; }
.hero-line .char { display: inline-block; opacity: 0; transform: translateY(110%); }

.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  color: #fff; line-height: 2.2;
  margin-bottom: 36px; opacity: 0;
  text-shadow: 0 2px 16px rgba(0,0,0,0.5), 0 1px 3px rgba(0,0,0,0.3);
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; opacity: 0; }

.hero-scroll-hint {
  position: absolute; bottom: 24px; left: 50%;
  transform: translateX(-50%); z-index: 10;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  color: rgba(255,255,255,0.3);
  font-family: var(--font-en); font-size: 0.6rem;
  letter-spacing: 0.15em; opacity: 0;
  animation: bounceDown 2.5s ease-in-out infinite;
}
@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(5px); }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 36px; border-radius: 100px;
  font-family: var(--font-jp); font-weight: 600; font-size: 0.9rem;
  letter-spacing: 0.05em; transition: all 0.4s var(--ease-out-expo);
  cursor: pointer; border: none; position: relative; overflow: hidden;
}
.btn-primary {
  background: #fff; color: var(--color-bg-dark);
}
.btn-primary:hover {
  background: var(--color-primary); color: var(--color-bg-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(252, 253, 9, 0.3);
}
.btn-outline {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  border-color: #fff; transform: translateY(-2px);
}

/* ======= Marquee ======= */
.marquee-section {
  padding: 28px 0;
  background: var(--color-bg-dark);
  overflow: hidden;
}
.marquee-track { display: flex; width: max-content; }
.marquee-content {
  display: flex; align-items: center; gap: 32px; padding-right: 32px;
  animation: marquee 20s linear infinite;
  font-family: var(--font-en); font-weight: 900;
  font-size: clamp(1.2rem, 3vw, 2rem);
  letter-spacing: 0.1em; color: var(--color-primary); white-space: nowrap;
}
.marquee-dot { color: var(--color-primary); font-size: 0.5em; opacity: 0.3; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ======= Mission (white bg) ======= */
.mission {
  padding: 120px 0; position: relative;
  background: var(--color-bg);
}
.mission::before {
  content: ''; position: absolute; inset: 0;
  background: url('../images/bg02.jpg') center/cover no-repeat;
  opacity: 0.15; pointer-events: none;
}
.mission-text { text-align: center; }
.mission-text p {
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
  font-weight: 600; line-height: 2; letter-spacing: 0.08em;
  color: var(--color-text);
}

/* ======= Section Common ======= */
.section { padding: 100px 0; }
@media (min-width: 768px) { .section { padding: 140px 0; } }
.section-header { margin-bottom: 60px; opacity: 0; }
.section-label {
  display: inline-block; font-family: var(--font-en); font-weight: 600;
  font-size: 0.75rem; letter-spacing: 0.3em; color: var(--color-text-subtle);
  margin-bottom: 12px; text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; letter-spacing: 0.05em;
}

/* ======= News (light gray bg) ======= */
.news-section { background: var(--color-bg-light); }
.news-grid { display: flex; flex-direction: column; gap: 2px; }
.news-card {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 28px 0; border-bottom: 1px solid var(--color-border);
  cursor: pointer; transition: background 0.3s ease; opacity: 0;
}
@media (min-width: 768px) {
  .news-card {
    align-items: center; gap: 40px; padding: 32px 24px;
    margin: 0 -24px; border-radius: 12px; border-bottom: none;
  }
  .news-card:hover { background: rgba(0, 0, 0, 0.03); }
}
.news-card-date { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; width: 60px; }
.news-year { font-family: var(--font-en); font-size: 0.65rem; color: var(--color-text-subtle); letter-spacing: 0.1em; }
.news-day { font-family: var(--font-en); font-weight: 700; font-size: 1.1rem; letter-spacing: 0.05em; }
.news-card-body { flex: 1; min-width: 0; }
.news-tag {
  display: inline-block; padding: 3px 12px;
  background: var(--color-bg-dark); border-radius: 100px;
  font-size: 0.65rem; font-weight: 600; color: #fff;
  margin-bottom: 8px; letter-spacing: 0.05em;
}
.news-card-title { font-size: 1rem; font-weight: 600; margin-bottom: 6px; line-height: 1.6; }
.news-card-excerpt {
  font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card-arrow { flex-shrink: 0; color: var(--color-text-subtle); transition: color 0.3s ease, transform 0.3s ease; display: none; }
@media (min-width: 768px) {
  .news-card-arrow { display: block; }
  .news-card:hover .news-card-arrow { color: var(--color-text); transform: translateX(4px); }
}

/* ======= About (white bg) ======= */
.about-section { background: var(--color-bg); }
.about-grid { display: grid; gap: 60px; }
@media (min-width: 768px) { .about-grid { grid-template-columns: 1fr 1fr; gap: 60px; } }

.about-philosophy { opacity: 0; }
.philosophy-header { margin-bottom: 32px; }
.philosophy-label {
  display: block; font-family: var(--font-en); font-weight: 600;
  font-size: 0.7rem; letter-spacing: 0.3em; color: var(--color-text-subtle); margin-bottom: 8px;
}
.philosophy-title { font-size: 1.5rem; font-weight: 800; }
.philosophy-main {
  font-size: 1.15rem; font-weight: 700; line-height: 2;
  margin-bottom: 24px; padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-bg-dark);
}
.philosophy-body { font-size: 0.9rem; color: var(--color-text-muted); line-height: 2; margin-bottom: 16px; }
.philosophy-highlight {
  color: var(--color-text); font-weight: 500; padding: 20px;
  background: var(--color-bg-light);
  border-left: 3px solid var(--color-bg-dark); border-radius: 0 8px 8px 0;
}

.about-info { opacity: 0; }
.info-header { margin-bottom: 32px; }
.info-label {
  display: block; font-family: var(--font-en); font-weight: 600;
  font-size: 0.7rem; letter-spacing: 0.3em; color: var(--color-text-subtle); margin-bottom: 8px;
}
.info-title { font-size: 1.5rem; font-weight: 800; }
.info-table { display: flex; flex-direction: column; }
.info-row { display: flex; padding: 16px 0; border-bottom: 1px solid var(--color-border); gap: 16px; }
.info-row dt { flex-shrink: 0; width: 80px; font-size: 0.8rem; font-weight: 600; color: var(--color-text-subtle); }
.info-row dd { font-size: 0.9rem; line-height: 1.8; }

/* ======= Business (dark bg) ======= */
.business-section { background: var(--color-bg-dark); color: #FCFD09; }
.business-section .section-label { color: rgba(252,253,9,0.5); }
.business-section .section-title { color: #FCFD09; }

.business-cards { display: grid; gap: 24px; }
@media (min-width: 768px) { .business-cards { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.business-card { opacity: 0; }
.business-card-inner {
  background: var(--color-bg); border: none;
  border-radius: 16px; padding: 40px 28px; height: 100%;
  transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s ease;
  position: relative; overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.business-card-inner::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--color-primary); transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s var(--ease-out-expo);
  z-index: 1;
}
.business-card:hover .business-card-inner {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}
.business-card:hover .business-card-inner::before { transform: scaleX(1); }
.business-card-number {
  font-family: var(--font-en); font-weight: 800; font-size: 3rem;
  color: rgba(0, 0, 0, 0.06); line-height: 1; margin-bottom: 16px;
}
.business-card-icon { color: var(--color-bg-dark); margin-bottom: 24px; }
.business-card-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 4px; color: var(--color-bg-dark); }
.business-card-en {
  display: block; font-family: var(--font-en); font-size: 0.7rem;
  color: var(--color-text-subtle); letter-spacing: 0.15em; margin-bottom: 24px;
}
.business-card-img {
  margin: -40px -28px 20px; border-radius: 16px 16px 0 0; overflow: hidden;
  aspect-ratio: 16/9;
}
.business-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.business-card-catch {
  font-size: 0.85rem; font-weight: 600; color: var(--color-text);
  line-height: 1.7; margin-bottom: 20px;
  padding-bottom: 16px; border-bottom: 1px solid var(--color-border);
}
.business-card-list { display: flex; flex-direction: column; gap: 12px; }
.business-card-list li {
  font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.7;
  padding-left: 16px; position: relative;
}
.business-card-list li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--color-bg-dark);
}

.blur-text { filter: blur(4px); user-select: none; }
.blur-overlay {
  font-size: 0.8rem; font-weight: 600;
}

/* ======= Contact (dark bg — contrast) ======= */
.contact-section {
  position: relative; overflow: hidden;
  background: var(--color-bg-dark); color: #FCFD09;
}
.contact-inner { display: grid; gap: 60px; }
@media (min-width: 768px) { .contact-inner { grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; } }

.contact-left { opacity: 0; }
.contact-section .section-label { color: rgba(252,253,9,0.5); }
.contact-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800;
  margin-bottom: 20px; letter-spacing: 0.05em; color: #FCFD09;
}
.contact-text { font-size: 0.95rem; color: rgba(252,253,9,0.7); line-height: 2; }
.contact-right { opacity: 0; }
.contact-email {
  display: flex; align-items: center; gap: 16px; padding: 28px;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px; margin-bottom: 32px;
  transition: border-color 0.3s ease, transform 0.3s var(--ease-out-expo);
}
.contact-email:hover { border-color: rgba(255,255,255,0.5); transform: translateY(-2px); }
.contact-email-label {
  font-family: var(--font-en); font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.2em; color: rgba(255,255,255,0.4);
}
.contact-email-address { flex: 1; font-family: var(--font-en); font-size: 1.1rem; font-weight: 600; color: #fff; }
.contact-email-arrow { color: rgba(255,255,255,0.5); transition: transform 0.3s ease; }
.contact-email:hover .contact-email-arrow { transform: translateX(4px); }

.contact-info-group { display: flex; flex-direction: column; gap: 20px; }
.contact-info-item { display: flex; gap: 16px; align-items: baseline; }
.contact-info-label {
  font-family: var(--font-en); font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.2em; color: rgba(252,253,9,0.5); flex-shrink: 0; width: 70px;
}
.contact-info-value { font-size: 0.9rem; color: rgba(252,253,9,0.7); line-height: 1.8; }
a.contact-info-value { transition: color 0.3s ease; color: rgba(252,253,9,0.7); }
a.contact-info-value:hover { color: #FCFD09; }

/* ======= Contact Form ======= */
.contact-form { margin-bottom: 40px; }
.form-group { margin-bottom: 20px; }
.form-label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: rgba(252,253,9,0.8); margin-bottom: 8px; letter-spacing: 0.05em;
}
.form-required { color: var(--color-primary); }
.form-input {
  width: 100%; padding: 14px 16px;
  background: rgba(252,253,9,0.08); border: 1px solid rgba(252,253,9,0.2);
  border-radius: 8px; color: #FCFD09; font-family: var(--font-jp); font-size: 0.9rem;
  transition: border-color 0.3s ease, background 0.3s ease;
  outline: none;
}
.form-input::placeholder { color: rgba(252,253,9,0.3); }
.form-input:focus {
  border-color: #FCFD09;
  background: rgba(252,253,9,0.12);
}
.form-select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FCFD09' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}
.form-select option { background: var(--color-bg-dark); color: #FCFD09; }
.form-textarea { resize: vertical; min-height: 120px; }
.btn-submit {
  width: 100%; padding: 16px; border-radius: 8px;
  background: var(--color-primary); color: var(--color-bg-dark);
  font-weight: 700; font-size: 0.95rem; letter-spacing: 0.1em;
  cursor: pointer; border: none;
  transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s ease, opacity 0.3s ease;
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(252, 253, 9, 0.3);
}
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.form-note { margin-top: 12px; font-size: 0.7rem; color: rgba(252,253,9,0.4); }
.form-success-text {
  padding: 32px; text-align: center;
  background: rgba(252,253,9,0.08); border: 1px solid rgba(252,253,9,0.15);
  border-radius: 12px; color: #FCFD09; font-size: 0.95rem; line-height: 2;
  margin-bottom: 40px;
}
.contact-info-group { margin-top: 32px; }
.btn-contact-form {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 32px; padding: 16px 36px; border-radius: 100px;
  background: var(--color-primary); color: var(--color-bg-dark);
  font-weight: 700; font-size: 0.9rem; letter-spacing: 0.1em;
  transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s ease;
}
.btn-contact-form:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(252, 253, 9, 0.3);
}

/* ======= Contact Single Page ======= */
.contact-page-header {
  background: var(--color-bg-dark); padding: 160px 0 60px; color: #FCFD09;
  position: relative; overflow: hidden;
}
@media (min-width: 768px) { .contact-page-header { padding: 180px 0 80px; } }
.contact-page-header::before {
  content: ''; position: absolute; top: -50%; right: -30%;
  width: 80%; height: 200%;
  background: radial-gradient(ellipse, rgba(252, 253, 9, 0.06) 0%, transparent 60%);
  pointer-events: none;
}
.contact-page-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800;
  letter-spacing: 0.05em; position: relative;
}
.contact-page-sub {
  margin-top: 16px; font-size: 0.95rem; color: rgba(252,253,9,0.7); line-height: 2;
  position: relative;
}
.contact-page-body { padding: 60px 0 100px; background: var(--color-bg); }
@media (min-width: 768px) { .contact-page-body { padding: 80px 0 140px; } }
.contact-page-inner {
  display: grid; gap: 60px;
}
@media (min-width: 768px) { .contact-page-inner { grid-template-columns: 1fr 320px; gap: 80px; } }
.contact-page-form { max-width: 100%; }
.contact-page-sidebar {}
.sidebar-info-title {
  font-family: var(--font-en); font-weight: 700; font-size: 0.75rem;
  letter-spacing: 0.2em; color: var(--color-text-subtle); margin-bottom: 20px;
}
.sidebar-info-group { display: flex; flex-direction: column; gap: 20px; }
.sidebar-info-item { display: flex; flex-direction: column; gap: 4px; }
.sidebar-info-label {
  font-family: var(--font-en); font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.2em; color: var(--color-text-subtle);
}
.sidebar-info-value { font-size: 0.9rem; color: var(--color-text); line-height: 1.8; }
a.sidebar-info-value { transition: color 0.3s ease; }
a.sidebar-info-value:hover { color: var(--color-text-muted); }

/* Light bg form */
.contact-form-light .form-group { margin-bottom: 24px; }
.contact-form-light .form-label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: var(--color-text); margin-bottom: 8px; letter-spacing: 0.05em;
}
.contact-form-light .form-required { color: #e53e3e; }
.contact-form-light .form-input {
  width: 100%; padding: 14px 16px;
  background: #fff; border: 1px solid var(--color-border);
  border-radius: 8px; color: var(--color-text); font-family: var(--font-jp); font-size: 0.9rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  outline: none;
}
.contact-form-light .form-input::placeholder { color: var(--color-text-subtle); }
.contact-form-light .form-input:focus {
  border-color: var(--color-bg-dark);
  box-shadow: 0 0 0 3px rgba(21, 21, 24, 0.08);
}
.contact-form-light .form-select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A5A62' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center; background-color: #fff;
}
.contact-form-light .form-textarea { resize: vertical; min-height: 140px; }
.contact-form-light .btn-submit {
  width: 100%; padding: 16px; border-radius: 8px;
  background: var(--color-bg-dark); color: #fff;
  font-weight: 700; font-size: 0.95rem; letter-spacing: 0.1em;
  cursor: pointer; border: none;
  transition: transform 0.3s var(--ease-out-expo), box-shadow 0.3s ease, background 0.3s ease;
}
.contact-form-light .btn-submit:hover {
  transform: translateY(-2px);
  background: #2a2a30;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}
.contact-form-light .btn-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.contact-form-light .form-note { margin-top: 16px; font-size: 0.7rem; color: var(--color-text-subtle); }
.form-success-page {
  padding: 40px; text-align: center;
  background: var(--color-bg-light); border-radius: 12px;
  color: var(--color-text); font-size: 0.95rem; line-height: 2;
}

/* ======= Footer (dark) ======= */
.footer {
  border-top: 1px solid rgba(252,253,9,0.15); padding: 60px 0 32px;
  background: var(--color-bg-dark); color: #FCFD09;
  padding-bottom: max(32px, env(safe-area-inset-bottom));
}
.footer-inner { display: flex; flex-direction: column; gap: 32px; margin-bottom: 40px; }
@media (min-width: 768px) {
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: flex-start; }
}
.footer-logo-img { height: 36px; width: auto; margin-bottom: 8px; }
.footer-logo-text {
  font-family: var(--font-en); font-weight: 800; font-size: 1.1rem;
  letter-spacing: 0.1em; color: #fff; display: block; margin-bottom: 8px;
}
.footer-tagline { font-size: 0.8rem; color: rgba(252,253,9,0.5); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 24px; }
.footer-nav a {
  font-family: var(--font-en); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.15em; color: rgba(252,253,9,0.6); transition: color 0.3s ease;
}
.footer-nav a:hover { color: #FCFD09; }
.footer-bottom { padding-top: 24px; border-top: 1px solid rgba(252,253,9,0.15); }
.copyright { font-family: var(--font-en); font-size: 0.7rem; color: rgba(252,253,9,0.4); }

/* ======= Splash effect ======= */
.splash-drop {
  position: fixed; pointer-events: none; z-index: 9997;
  border-radius: 50%; background: var(--color-primary);
}

/* ======= News Single Page ======= */
.news-single-header {
  background: var(--color-bg-dark); padding: 160px 0 60px; color: #FCFD09;
  position: relative; overflow: hidden;
}
.news-single-header::before {
  content: ''; position: absolute; inset: 0;
  background: url('../images/bg.jpg') center/cover no-repeat;
  opacity: 0.15; pointer-events: none;
}
@media (min-width: 768px) { .news-single-header { padding: 180px 0 80px; } }
.news-single-meta {
  display: flex; align-items: center; gap: 16px; margin-bottom: 20px; flex-wrap: wrap;
}
.news-single-date {
  font-family: var(--font-en); font-weight: 600; font-size: 0.85rem;
  color: rgba(252,253,9,0.6); letter-spacing: 0.1em;
}
.news-single-tag {
  display: inline-block; padding: 4px 14px;
  background: var(--color-primary); border-radius: 100px;
  font-size: 0.65rem; font-weight: 700; color: var(--color-bg-dark);
  letter-spacing: 0.05em;
}
.news-single-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem); font-weight: 800;
  line-height: 1.6; letter-spacing: 0.03em;
}
.news-single-body {
  padding: 60px 0 100px; background: var(--color-bg);
}
@media (min-width: 768px) { .news-single-body { padding: 80px 0 140px; } }
.news-single-content {
  max-width: 760px; margin: 0 auto;
  font-size: 0.95rem; line-height: 2.2; color: var(--color-text-muted);
}
.news-single-content p { margin-bottom: 28px; }
.news-single-content h2 {
  font-size: 1.3rem; font-weight: 700; color: var(--color-text);
  margin: 48px 0 20px; padding-bottom: 12px;
  border-bottom: 2px solid var(--color-bg-dark);
}
.news-single-content ul, .news-single-content ol {
  margin: 0 0 28px 20px; list-style: disc;
}
.news-single-content li { margin-bottom: 8px; }
.news-single-back {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 48px; padding: 14px 32px; border-radius: 100px;
  background: var(--color-bg-dark); color: #FCFD09;
  font-family: var(--font-en); font-weight: 600; font-size: 0.8rem;
  letter-spacing: 0.1em; transition: all 0.3s var(--ease-out-expo);
}
.news-single-back:hover {
  background: var(--color-primary); color: var(--color-bg-dark);
  transform: translateY(-2px);
}
.news-single-back svg { transition: transform 0.3s ease; }
.news-single-back:hover svg { transform: translateX(-4px); }

/* ======= Mobile Optimization ======= */
@media (max-width: 767px) {
  /* Header */
  #header { padding: 14px 0; }
  #header.scrolled { padding: 10px 0; }
  .header-logo-img { height: 26px; }

  /* Hero */
  .hero-content { left: 20px; right: 20px; top: 50%; transform: translateY(-50%); }
  .hero-catch { font-size: calc((100vw - 48px) / 21); line-height: 1.6; margin-bottom: 16px; white-space: nowrap; }
  .hero-sub { font-size: 0.85rem; line-height: 2; margin-bottom: 24px; }
  .hero-cta { gap: 10px; }
  .hero-cta .btn { padding: 12px 24px; font-size: 0.8rem; width: 100%; text-align: center; }
  .hero-scroll-hint { bottom: 16px; }

  /* Marquee */
  .marquee-section { padding: 18px 0; }

  /* Mission */
  .mission { padding: 80px 0; }
  .mission { padding: 60px 0; }
  .mission-text p { font-size: 0.85rem; line-height: 2; }

  /* Section common */
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 36px; }
  .section-title { font-size: 1.5rem; }

  /* News */
  .news-card { gap: 14px; padding: 20px 0; }
  .news-card-date { width: 48px; }
  .news-year { font-size: 0.6rem; }
  .news-day { font-size: 0.95rem; }
  .news-card-title { font-size: 0.9rem; margin-bottom: 4px; }
  .news-card-excerpt { font-size: 0.8rem; -webkit-line-clamp: 1; }

  /* About */
  .about-grid { gap: 40px; }
  .philosophy-title { font-size: 1.25rem; }
  .philosophy-main { font-size: 1rem; }
  .philosophy-body { font-size: 0.85rem; }
  .philosophy-highlight { padding: 16px; font-size: 0.85rem; }
  .info-title { font-size: 1.25rem; }
  .info-row { padding: 12px 0; flex-direction: column; gap: 4px; }
  .info-row dt { width: auto; font-size: 0.75rem; }
  .info-row dd { font-size: 0.85rem; }

  /* Business */
  .business-card-inner { padding: 28px 20px; border-radius: 12px; }
  .business-card-number { font-size: 2.2rem; margin-bottom: 12px; }
  .business-card-title { font-size: 1.05rem; }
  .business-card-list li { font-size: 0.8rem; }

  /* Contact */
  .contact-inner { gap: 36px; }
  .contact-title { font-size: 1.5rem; margin-bottom: 12px; }
  .contact-text { font-size: 0.85rem; }
  .contact-info-item { gap: 12px; }
  .btn-contact-form { width: 100%; text-align: center; padding: 14px 24px; font-size: 0.85rem; }

  /* Footer */
  .footer { padding: 40px 0 24px; }
  .footer-inner { gap: 24px; margin-bottom: 24px; }
  .footer-logo-img { height: 28px; }
  .footer-nav { gap: 16px; }
  .footer-nav a { font-size: 0.7rem; }
  .copyright { font-size: 0.65rem; }

  /* News Single */
  .news-single-header { padding: 120px 0 40px; }
  .news-single-title { font-size: 1.2rem; }
  .news-single-body { padding: 40px 0 60px; }
  .news-single-content { font-size: 0.88rem; }
  .news-single-content h2 { font-size: 1.1rem; margin: 32px 0 16px; }
  .news-single-back { padding: 12px 24px; font-size: 0.75rem; }

  /* Contact Page */
  .contact-page-header { padding: 90px 0 32px; }
  .contact-page-title { font-size: 1.5rem; }
  .contact-page-sub { font-size: 0.85rem; }
  .contact-page-inner { gap: 40px; }
  .contact-form-light .form-input { padding: 12px 14px; font-size: 0.85rem; }
  .contact-form-light .btn-submit { padding: 14px; font-size: 0.9rem; }
}

/* Small phones */
@media (max-width: 374px) {
  .container { padding: 0 16px; }
  .hero-catch { font-size: 1.1rem; }
  .hero-sub { font-size: 0.8rem; }
  .section-title { font-size: 1.3rem; }
  .mission-text p { font-size: 0.9rem; }
}

/* ======= Reduced motion ======= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; transition-duration: 0.01ms !important;
  }
}