:root {
  /* Colors - Light Theme */
  --bg-color: #FFFFFF;
  --bg-color-translucent: rgba(255, 255, 255, 0.95);
  --text-color: #1A202C;
  --text-color-muted: #4A5568;
  --accent-color: #0056B3;
  --accent-color-hover: #004494;
  --accent-secondary: #00A3C4;
  --border-color: #E2E8F0;

  /* Gradients */
  --gradient-main: linear-gradient(135deg, #F7FAFC 0%, #FFFFFF 100%);
  --gradient-text: linear-gradient(90deg, #0056B3, #00A3C4);

  /* Typography */
  --font-main: 'Inter', 'Noto Sans JP', sans-serif;
  --h1-size: 3.5rem;
  --h2-size: 2.5rem;
  --h3-size: 1.75rem;
  --body-size: 1rem;

  /* Spacing */
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  /* Container */
  --container-width: 1200px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  background-image: radial-gradient(circle at 50% 10%, rgba(0, 86, 179, 0.05) 0%, transparent 40%);
  min-height: 100vh;
  line-break: strict;
  overflow-wrap: break-word;
}

/* 全体共通：見出し・ボタン・タイトル等の日本語フレーズ自動判別改行 */
h1, h2, h3, h4, h5, h6,
.section-title, .page-header h1,
.btn, .btn-primary, .btn-contact-action, .btn-register-cta, .btn-bridge,
.contact-card h3, .target-card h3, .harmony-card h3, .criteria-card h4, .artists-cta-card h3,
.hero-content h1, .hero-content p {
  word-break: auto-phrase;
  line-break: strict;
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-secondary);
}

img {
  max-width: 100%;
  display: block;
}

/* Container */
.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--h1-size);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--h2-size);
  margin-bottom: var(--spacing-xl);
}

p {
  color: var(--text-color-muted);
  margin-bottom: var(--spacing-md);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--accent-color);
  color: white;
  border-radius: 50px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(77, 124, 254, 0.4);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
}

.btn-secondary:hover {
  border-color: var(--accent-color);
  background: rgba(77, 124, 254, 0.1);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md) 0;
  background: var(--bg-color-translucent);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  width: 94%;
}

.logo {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.15;
  text-decoration: none;
}

.logo-sub {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #64748b;
  -webkit-text-fill-color: initial;
  display: block;
}

.logo-main {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

nav a {
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-color-muted);
}

nav a.active,
nav a:hover {
  color: var(--text-color);
}

/* Header Nav responsive adjustments for 9 items */
@media (min-width: 1025px) and (max-width: 1280px) {
  nav ul {
    gap: 1.15rem;
  }
  nav a {
    font-size: 0.88rem;
    letter-spacing: 0.02em;
  }
}


/* Section Common */
section {
  padding: 80px 0;
}

/* Footer Improvements */
footer {
  background: #0a111a;
  padding: 80px 0 40px;
  color: #e2e8f0;
  border-top: none;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.footer-logo-sub {
  font-size: 0.85rem;
  font-weight: 500;
  color: #a0aec0;
  letter-spacing: 0.08em;
  display: block;
}

.footer-logo-main {
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.05em;
  display: block;
}

.footer-section h3 {
  font-size: 1.1rem;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links {
  list-style: none;
}

.footer-links.footer-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 40px;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #a0aec0;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #60d0ff;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: block;
  text-align: center;
}

.footer-copyright {
  margin-top: 20px;
  font-size: 0.9rem;
  color: #718096;
}

/* Stealth Link */
.stealth-link {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.stealth-link:hover {
  text-decoration: none;
  opacity: 0.8;
}

/* Responsive Behavior for Footer */
@media (max-width: 768px) {
  .footer-copyright .separator {
    display: none;
  }
  .footer-copyright .produced-by {
    display: block;
    margin-top: 5px;
  }
}

/* Back to Top Button */
#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

#back-to-top.show {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: var(--accent-secondary);
  transform: translateY(-5px);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-links.footer-2col {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile Menu */
html, body {
  overflow-x: hidden;
  width: 100%;
  max-width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1005;
}

.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-color);
  margin: 5px 0;
  transition: all 0.3s ease;
}

.mobile-menu-btn.active span {
  background-color: #ffffff !important;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 1024px) {
  .mobile-menu-btn {
    display: block;
  }

  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s ease-in-out;
    z-index: 1000;
  }

  nav.active {
    right: 0;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }

  nav a {
    font-size: 1.2rem;
    color: #94a3b8;
  }

  nav a.active,
  nav a:hover {
    color: #38bdf8 !important;
    font-weight: 700;
  }
}

.mobile-br {
  display: none;
}

@media (max-width: 768px) {
  .mobile-br {
    display: inline !important;
  }
  
  .harmony-grid, .target-grid, .funds-grid, .criteria-grid, .mv-grid {
    grid-template-columns: 1fr !important;
    gap: 1.25rem !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .fund-use-card, .harmony-card, .target-card, .criteria-card, .sponsor-card {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow-wrap: break-word !important;
    word-break: auto-phrase !important;
  }
}

/* Unified Subpage Header - Fixed Height on all pages */
.page-header {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    height: 280px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 105px; /* Fixed offset from top */
    padding-bottom: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

.page-header .container {
    width: 100%;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 50% 30%, rgba(56, 189, 248, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.page-header .page-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.15);
    padding: 4px 16px;
    border-radius: 50px;
    letter-spacing: 0.15em;
    display: inline-block;
    margin-bottom: 0.6rem;
}

.page-header h1 {
    font-size: clamp(1.8rem, 4.5vw, 2.4rem);
    font-weight: 900;
    margin-bottom: 0.5rem;
    color: #ffffff;
    letter-spacing: -0.01em;
}

.page-header p {
    font-size: 0.98rem;
    color: #94a3b8;
    max-width: 820px;
    margin: 0 auto;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .page-header {
        height: auto !important;
        min-height: 250px !important;
        padding-top: 95px !important;
        padding-bottom: 25px !important;
    }
    .page-header p {
        font-size: 0.9rem !important;
        line-height: 1.45 !important;
        padding: 0 1rem;
    }
}

.nobr {
  display: inline-block;
  white-space: nowrap;
}

/* Responsive Line Breaks & Organization Info Layout */
.pc-br {
    display: inline;
}

.sp-br {
    display: none;
}

.sp-block {
    display: inline;
    white-space: normal;
}

.about-card {
    background: #f8fafc;
    border-radius: 24px;
    padding: 3rem;
    border: 1px solid #e2e8f0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.about-dl {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 1.8rem 2rem;
    margin: 0;
    font-size: 1rem;
}

@media (max-width: 768px) {
    .pc-br {
        display: none !important;
    }

    .sp-br {
        display: inline !important;
    }

    .sp-block {
        display: block !important;
        white-space: nowrap !important;
    }
    
    .about-card {
        padding: 1.75rem 1.25rem !important;
        border-radius: 16px !important;
    }
    
    .about-dl {
        display: block !important;
    }
    
    .about-dl dt {
        font-weight: 700 !important;
        color: #0056B3 !important;
        font-size: 0.85rem !important;
        letter-spacing: 0.05em !important;
        margin-top: 1.25rem !important;
        margin-bottom: 0.35rem !important;
        border-bottom: none !important;
        padding-bottom: 0 !important;
    }
    
    .about-dl dd {
        font-size: 0.98rem !important;
        color: #0f172a !important;
        margin-left: 0 !important;
        padding-bottom: 1.25rem !important;
        border-bottom: 1px dashed #e2e8f0 !important;
        word-break: break-word !important;
        overflow-wrap: break-word !important;
        line-height: 1.7 !important;
    }
    
    .about-dl dt:first-of-type {
        margin-top: 0 !important;
    }
    
    .about-dl dd:last-of-type {
        border-bottom: none !important;
        padding-bottom: 0 !important;
    }
}

/* ===================================================
   SOUND ALLIANCE MEDIA & DAILY NEWS SECTION
   =================================================== */
.media-news-section {
    padding: 5rem 0 6rem;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.media-section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.media-badge {
    display: inline-block;
    background: rgba(0, 86, 179, 0.08);
    color: #0056B3;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.media-section-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 2rem;
    line-height: 1.3;
    display: inline-block;
}

.media-section-notice {
    font-size: 0.85rem;
    line-height: 1.6;
    color: #64748b;
    max-width: 720px;
    margin: 0 auto;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    padding: 0.9rem 1.4rem;
    border-radius: 12px;
    text-align: left;
}

.media-stack-container {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}

.media-block {
    background: #ffffff;
    border-radius: 28px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    padding: 2.5rem;
    transition: box-shadow 0.3s ease;
}

.media-block:hover {
    box-shadow: 0 16px 36px rgba(0, 86, 179, 0.06);
}

.media-block-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid #f1f5f9;
}

.media-block-title-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
}

.media-block-icon {
    font-size: 2rem;
    line-height: 1;
}

.media-block-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 0.2rem;
    line-height: 1.3;
}

.media-block-desc {
    font-size: 0.88rem;
    color: #64748b;
    margin: 0;
}

.pulse-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f0fdf4;
    color: #166534;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 50px;
    border: 1px solid #bbf7d0;
    white-space: nowrap;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #22c55e;
    border-radius: 50%;
    animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}



/* 1. Daily News Section - Tabs & Sort Toolbar */
.news-tabs-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.news-tab-group {
    display: inline-flex;
    background: #f1f5f9;
    padding: 4px;
    border-radius: 50px;
    gap: 4px;
}

.news-tab-btn {
    border: none;
    background: transparent;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.news-tab-btn .tab-count {
    font-size: 0.8em;
    opacity: 0.8;
}

.news-tab-btn.active {
    background: #ffffff;
    color: #0f172a;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* カード型 UI（スマホ特化） */
.daily-news-list {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    max-height: 540px;
    overflow-y: auto;
    padding-right: 0.4rem;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}

.daily-news-list::-webkit-scrollbar {
    width: 6px;
}

.daily-news-list::-webkit-scrollbar-track {
    background: transparent;
}

.daily-news-list::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

.daily-news-card {
    background: #ffffff;
    border: 1.5px solid #e2e8f0;
    border-radius: 18px;
    padding: 1.25rem 1.4rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.daily-news-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 86, 179, 0.08);
    border-color: #93c5fd;
}

.daily-news-card.urgent-card {
    background: #ffffff;
    border-color: #fca5a5;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.08);
}

.card-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
}

.card-tags-left {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.card-tags-right {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}

.news-cat-badge {
    background: #eff6ff;
    color: #1d4ed8;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 6px;
    border: 1px solid #bfdbfe;
}

.badge-week-add {
    background: #0284c7;
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 6px;
    letter-spacing: 0.02em;
}

.badge-countdown {
    font-size: 0.74rem;
    font-weight: 800;
    padding: 3px 9px;
    border-radius: 6px;
}

.badge-countdown.urgent {
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #fca5a5;
}

.badge-countdown.today {
    background: #fef3c7;
    color: #b45309;
    border: 1px solid #fde68a;
}

.badge-countdown.safe {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #e2e8f0;
}

.badge-countdown.ended {
    background: #e2e8f0;
    color: #64748b;
    border: 1px solid #cbd5e1;
}

.daily-news-card.card-ended {
    opacity: 0.75;
    background: #f8fafc;
}

.daily-news-card.card-ended:hover {
    opacity: 0.95;
}

/* 終了分アーカイブ（折りたたみアコーディオン） */
.ended-archive-section {
    margin-top: 2rem;
    border-top: 1px dashed #cbd5e1;
    padding-top: 1.5rem;
}

.ended-archive-details {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 1rem 1.4rem;
    transition: all 0.2s ease;
}

.ended-archive-details[open] {
    background: #f1f5f9;
}

.ended-archive-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    color: #64748b;
    user-select: none;
    list-style: none;
}

.ended-archive-summary::-webkit-details-marker {
    display: none;
}

.ended-archive-summary:hover {
    color: #0f172a;
}

.ended-archive-summary-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ended-archive-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.25s ease;
}

.ended-archive-details[open] .ended-archive-arrow {
    transform: rotate(180deg);
}

.ended-archive-content {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}


.card-main-title {
    font-size: 1.08rem;
    font-weight: 800;
    line-height: 1.45;
    margin: 0;
    color: #0f172a;
}

.card-main-title a {
    color: #0f172a;
    text-decoration: none;
    transition: color 0.2s ease;
}

.card-main-title a:hover {
    color: #0056B3;
    text-decoration: underline;
}

.card-divider {
    height: 1px;
    background: #f1f5f9;
    margin: 0.15rem 0;
}

.card-details-grid {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.88rem;
    line-height: 1.55;
    color: #334155;
}

.card-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.detail-label {
    font-weight: 700;
    color: #475569;
    flex-shrink: 0;
    white-space: nowrap;
}

.detail-text {
    color: #334155;
}

.card-bottom-row {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 0.25rem;
}

.btn-card-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #0056B3;
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-card-action .external-link-icon,
.btn-feedback .external-link-icon,
.btn-yt-channel-link .external-link-icon,
.btn-sponsor-cta .external-link-icon,
.btn-register-cta .external-link-icon,
.btn-contact-action .external-link-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    stroke: currentColor;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.btn-card-action:hover .external-link-icon,
.btn-feedback:hover .external-link-icon,
.btn-yt-channel-link:hover .external-link-icon,
.btn-sponsor-cta:hover .external-link-icon,
.btn-register-cta:hover .external-link-icon,
.btn-contact-action:hover .external-link-icon {
    transform: translate(1px, -1px);
}

.btn-card-action:hover {
    background: #004494;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 86, 179, 0.25);
    color: #ffffff;
}

/* 2. YouTube Video Block (下：動画) */
.media-video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    border-radius: 20px;
    overflow: hidden;
    background: #0f172a;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.media-video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.media-video-wrapper img.media-video-thumb {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.media-video-link:hover img.media-video-thumb {
    transform: scale(1.03);
}

.media-play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.media-video-link:hover .media-play-overlay {
    background: rgba(15, 23, 42, 0.2);
}

.media-play-btn {
    width: 72px;
    height: 72px;
    background: rgba(239, 68, 68, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 5px;
    box-shadow: 0 6px 25px rgba(239, 68, 68, 0.5);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.media-video-link:hover .media-play-btn {
    transform: scale(1.15);
}

.media-video-wrapper.teaser-mode {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.media-teaser-inner {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
}

.media-teaser-badge {
    position: absolute;
    top: 16px; left: 16px;
    background: rgba(56, 189, 248, 0.2);
    color: #38bdf8;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 20px;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.media-teaser-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.media-teaser-date {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.media-teaser-ep {
    font-size: 0.9rem;
    color: #94a3b8;
}

.broadcast-info {
    margin-bottom: 1.5rem;
}

.broadcast-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: #0f172a;
    line-height: 1.4;
    margin-bottom: 0.6rem;
}

.broadcast-feature {
    font-size: 0.95rem;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 0.4rem;
}

.broadcast-artists {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.5;
}

/* 3. Podcast Row (その下にポッドキャスト) */
.podcast-row-box {
    margin-top: 1.5rem;
    padding: 1.25rem 1.75rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.podcast-label-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.podcast-icon {
    font-size: 1.8rem;
}

.podcast-text-title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.15rem;
}

.podcast-text-desc {
    font-size: 0.82rem;
    color: #64748b;
    margin: 0;
}

.btn-spotify {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #1db954;
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(29, 185, 84, 0.25);
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-spotify:hover {
    background: #1aa34a;
    color: white;
    transform: translateY(-2px);
}

.btn-spotify.disabled {
    background: #e2e8f0;
    color: #94a3b8;
    box-shadow: none;
    pointer-events: none;
}

/* 4. Listener Feedback Form (さらにその下にGoogleフォーム) */
.feedback-box {
    margin-top: 1.5rem;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: 20px;
    padding: 2rem 2.5rem;
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.feedback-text h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: #ffffff;
}

.feedback-text p {
    font-size: 0.88rem;
    color: #94a3b8;
    margin: 0;
    line-height: 1.5;
}

.btn-feedback {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #38bdf8;
    color: #0f172a;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-feedback:hover {
    background: #7dd3fc;
    transform: translateY(-2px);
}

/* 5. Archive Page Link (過去アーカイブへのリンク) */
.media-all-archive-cta {
    text-align: center;
    margin-top: 1rem;
}

.btn-all-archive {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #ffffff;
    border: 2px solid #0056B3;
    color: #0056B3;
    font-size: 1rem;
    font-weight: 700;
    padding: 14px 36px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.08);
}

.btn-all-archive:hover {
    background: #0056B3;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.2);
}

@media (max-width: 768px) {
    .media-block {
        padding: 1.75rem 1.25rem;
        border-radius: 20px;
    }
    .media-section-title {
        font-size: 1.7rem;
    }
    .feedback-box, .podcast-row-box {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem;
        gap: 1.25rem;
    }
    .btn-feedback, .btn-spotify {
        width: 100%;
        justify-content: center;
    }
    .news-tabs-toolbar {
        width: 100%;
    }
    .news-tab-group {
        display: flex;
        width: 100%;
        box-sizing: border-box;
    }
    .news-tab-btn {
        flex: 1 1 0;
        justify-content: center;
        padding: 8px 6px;
        font-size: 0.85rem;
        gap: 4px;
        white-space: nowrap;
        min-width: 0;
    }
    .news-tab-btn .tab-count {
        font-size: 0.75rem;
    }
    .ecosystem-header h2 {
        font-size: clamp(1.45rem, 5.8vw, 1.85rem);
        line-height: 1.5;
    }
}

.btn-yt-channel-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #ef4444;
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-yt-channel-link:hover {
    background: #dc2626;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* ====================================================
   アーティスト支援情報ポータル (Support Info Portal)
==================================================== */
.support-portal-content {
    padding: 3.5rem 0 6rem;
    background: #f8fafc;
    min-height: 60vh;
}

.support-portal-card-container {
    max-width: 960px;
    margin: 0 auto;
}

.support-portal-lead-box {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 1.8rem 2.2rem;
    margin-bottom: 1.75rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.support-portal-lead-text {
    flex: 1;
    min-width: 280px;
}

.support-portal-lead-text h2 {
    font-size: 1.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 0.4rem;
}

.support-portal-lead-text p {
    font-size: 0.9rem;
    color: #64748b;
    margin: 0;
    line-height: 1.6;
}

.support-portal-meta-badges {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.badge-live-pulse {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f0fdf4;
    color: #166534;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 50px;
    border: 1px solid #bbf7d0;
    white-space: nowrap;
}

.badge-live-pulse .pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #22c55e;
    border-radius: 50%;
    animation: pulse-ring 1.8s infinite;
}

.support-search-toolbar {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 1.25rem 1.75rem;
    margin-bottom: 1.75rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.support-search-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.support-search-input-wrap {
    flex: 1;
    min-width: 240px;
    position: relative;
}

.support-search-input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    border: 1.5px solid #cbd5e1;
    border-radius: 50px;
    font-size: 0.92rem;
    color: #0f172a;
    background: #f8fafc;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.support-search-input:focus {
    outline: none;
    background: #ffffff;
    border-color: #0056B3;
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.12);
}

.support-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: #94a3b8;
    pointer-events: none;
}

.daily-news-list.full-view {
    max-height: none !important;
    overflow-y: visible !important;
    gap: 1.25rem;
}

.top-support-preview-cta {
    margin-top: 2rem;
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px dashed #e2e8f0;
}

.btn-view-all-support {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #0056B3 0%, #004494 100%);
    color: #ffffff !important;
    font-size: 1rem;
    font-weight: 700;
    padding: 14px 34px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 86, 179, 0.25);
    transition: all 0.25s ease;
}

.btn-view-all-support:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 86, 179, 0.35);
    background: linear-gradient(135deg, #0062cc 0%, #003d82 100%);
    color: #ffffff !important;
}

.btn-view-all-support svg {
    transition: transform 0.2s ease;
}

.btn-view-all-support:hover svg {
    transform: translateX(3px);
}

@media (max-width: 768px) {
    .support-portal-lead-box {
        padding: 1.25rem;
        border-radius: 16px;
    }
    .support-search-toolbar {
        padding: 1rem;
    }
    .support-search-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    .support-search-input-wrap {
        width: 100%;
        min-width: 0;
    }
    .btn-view-all-support {
        width: 100%;
        justify-content: center;
        box-sizing: border-box;
        padding: 12px 20px;
        font-size: 0.95rem;
    }
}

/* ====================================================
   役員紹介 (Leadership) セクションスタイル
==================================================== */
.board-section {
    margin-top: 5rem;
    margin-bottom: 2rem;
}

.board-header {
    text-align: center;
    margin-bottom: 2.75rem;
}

.board-header .board-badge {
    font-size: 0.85rem;
    font-weight: 700;
    color: #0056B3;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    display: inline-block;
    background: #e0f2fe;
    padding: 4px 18px;
    border-radius: 50px;
    margin-bottom: 0.75rem;
}

.board-header h3 {
    font-size: clamp(1.5rem, 3.5vw, 1.85rem);
    font-weight: 800;
    color: #0f172a;
    margin: 0;
    letter-spacing: -0.02em;
}

.board-header p {
    font-size: 0.98rem;
    color: #64748b;
    max-width: 680px;
    margin: 0.85rem auto 0;
    line-height: 1.8;
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.25rem;
}

@media (max-width: 768px) {
    .board-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }
    .board-section {
        margin-top: 3.5rem;
    }
}

.board-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 2.5rem 2.25rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.board-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.09);
}

.board-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0056B3, #38bdf8);
}

.board-role-badge {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 5px 14px;
    border-radius: 50px;
    background: #f1f5f9;
    color: #0056B3;
    margin-bottom: 1.1rem;
}

.board-name-wrap {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 0.6rem;
    flex-wrap: wrap;
}

.board-name {
    font-size: 1.55rem;
    font-weight: 800;
    color: #0f172a;
    margin: 0;
    letter-spacing: -0.01em;
}

.board-en {
    font-size: 0.85rem;
    font-weight: 600;
    color: #64748b;
    letter-spacing: 0.05em;
}

.board-affiliation {
    font-size: 0.92rem;
    font-weight: 600;
    color: #475569;
    margin-bottom: 1.4rem;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid #f1f5f9;
    line-height: 1.5;
}

.board-bio {
    font-size: 0.92rem;
    color: #475569;
    line-height: 1.9;
    margin-bottom: 1.75rem;
    flex-grow: 1;
    text-align: justify;
}

.board-link-wrap {
    margin-top: auto;
    padding-top: 1.1rem;
    border-top: 1px dashed #e2e8f0;
}

.board-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    color: #0056B3;
    text-decoration: none;
    transition: color 0.2s, transform 0.2s;
}

.board-link:hover {
    color: #0284c7;
    text-decoration: underline;
    transform: translateX(3px);
}

/* ====================================================
   三者共創循環モデル＆参加後の世界スタイル
==================================================== */
.ecosystem-section {
    padding: 90px 0 70px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.ecosystem-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3.5rem;
}

.ecosystem-badge {
    font-size: 0.82rem;
    font-weight: 700;
    color: #0056B3;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    display: inline-block;
    background: #e0f2fe;
    padding: 5px 18px;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.ecosystem-header h2 {
    font-size: clamp(1.75rem, 3.8vw, 2.3rem);
    font-weight: 800;
    color: #0f172a;
    line-height: 1.4;
    margin-bottom: 1rem;
}

.ecosystem-header p {
    font-size: 1.05rem;
    color: #64748b;
    line-height: 1.8;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}

@media (max-width: 960px) {
    .benefit-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.benefit-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
}

.benefit-card.corp-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0056B3, #0284c7);
}

.benefit-card.artist-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #7c3aed, #a855f7);
}

.benefit-card.fan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #d97706, #f59e0b);
}

.benefit-badge {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 1.2rem;
}

.corp-card .benefit-badge {
    background: #e0f2fe;
    color: #0369a1;
}

.artist-card .benefit-badge {
    background: #f3e8ff;
    color: #6b21a8;
}

.fan-card .benefit-badge {
    background: #fef3c7;
    color: #92400e;
}

.benefit-card h3 {
    font-size: 1.35rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.benefit-card .benefit-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
}

.benefit-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    flex-grow: 1;
}

.benefit-list li {
    font-size: 0.93rem;
    color: #334155;
    line-height: 1.7;
    margin-bottom: 0.85rem;
    padding-left: 1.5rem;
    position: relative;
}

.benefit-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    font-weight: 800;
}

.corp-card .benefit-list li::before { color: #0284c7; }
.artist-card .benefit-list li::before { color: #8b5cf6; }
.fan-card .benefit-list li::before { color: #d97706; }

.benefit-action-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
    margin-top: auto;
    padding-top: 1.2rem;
    border-top: 1px dashed #e2e8f0;
    transition: gap 0.2s ease, color 0.2s ease;
}

.corp-card .benefit-action-link { color: #0056B3; }
.artist-card .benefit-action-link { color: #7c3aed; }
.fan-card .benefit-action-link { color: #d97706; }

.benefit-action-link:hover {
    gap: 10px;
    text-decoration: underline;
}