/* ==========================================================================
   towa-top.css
   Front page styles for towanone.com
   Mobile-first responsive design
   ========================================================================== */

/* --------------------------------------------------------------------------
   Base container
   -------------------------------------------------------------------------- */
.towa-top {
  width: 100%;
  overflow-x: hidden;
  color: var(--towa-text);
  font-family: var(--towa-font-body);
  line-height: var(--towa-line-height);
}

/* --------------------------------------------------------------------------
   Shared section rhythm
   -------------------------------------------------------------------------- */
.towa-top-tech,
.towa-top-story,
.towa-top-journal,
.towa-top-contact {
  padding: 3.5rem 1.25rem;
}

@media (min-width: 768px) {
  .towa-top-products,
  .towa-top-story,
  .towa-top-journal,
  .towa-top-contact {
    padding: 5rem 2rem;
  }
}

@media (min-width: 1024px) {
  .towa-top-products,
  .towa-top-story,
  .towa-top-journal,
  .towa-top-contact {
    padding: 6rem 2rem;
  }
}

/* --------------------------------------------------------------------------
   Section titles & lead text
   -------------------------------------------------------------------------- */
.towa-top-section-title {
  font-family: var(--towa-font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--towa-heading);
  line-height: var(--towa-line-height-heading);
  text-align: center;
  margin: 0 0 0.75rem;
  letter-spacing: 0.04em;
}

@media (min-width: 768px) {
  .towa-top-section-title {
    font-size: 1.75rem;
  }
}

@media (min-width: 1024px) {
  .towa-top-section-title {
    font-size: 2rem;
  }
}

.towa-top-section-lead {
  font-size: 0.9375rem;
  color: var(--towa-text-light);
  text-align: center;
  max-width: 38rem;
  margin: 0 auto 2.5rem;
  line-height: var(--towa-line-height);
}

@media (min-width: 768px) {
  .towa-top-section-lead {
    font-size: 1rem;
    margin-bottom: 3rem;
  }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.towa-top-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  padding: 4rem 1.5rem;
  text-align: center;
  overflow: hidden;
}

@media (min-width: 768px) {
  .towa-top-hero {
    min-height: 55vh;
    padding: 5rem 2rem;

  .towa-top-hero__cta {
    flex-direction: row;
    align-items: center;
  }
  }
}

@media (min-width: 1024px) {
  .towa-top-hero {
    min-height: 60vh;
    padding: 6rem 2rem;
  }
}

.towa-top-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(42, 123, 123, 0.06) 0%, transparent 70%),
    linear-gradient(175deg, var(--towa-bg) 0%, var(--towa-bg-alt) 50%, var(--towa-bg-subtle) 100%);
  pointer-events: none;
}

.towa-top-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 44rem;
  margin: 0 auto;
}

.towa-top-hero__brand {
  font-family: var(--towa-font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--towa-heading);
  line-height: var(--towa-line-height-heading);
  margin: 0 0 1rem;
  letter-spacing: 0.05em;
}

@media (min-width: 768px) {
  .towa-top-hero__brand {
    font-size: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .towa-top-hero__brand {
    font-size: 3rem;
    margin-bottom: 1.25rem;
  }
}

.towa-top-hero__tagline {
  font-family: var(--towa-font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--towa-text);
  line-height: var(--towa-line-height-heading);
  margin: 0 0 0.75rem;
}

@media (min-width: 768px) {
  .towa-top-hero__tagline {
    font-size: 1.375rem;
  }
}

@media (min-width: 1024px) {
  .towa-top-hero__tagline {
    font-size: 1.5rem;
  }
}

.towa-top-hero__sub {
  font-size: 0.9375rem;
  color: var(--towa-text-light);
  margin: 0 0 2rem;
  line-height: var(--towa-line-height);
}

@media (min-width: 768px) {
  .towa-top-hero__sub {
    font-size: 1rem;
    margin-bottom: 2.5rem;
  }
}

.towa-top-hero__cta {
  flex-direction: column;
  align-items: stretch;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.towa-top-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 0.7em 1.6em;
  font-family: var(--towa-font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--towa-radius-sm);
  cursor: pointer;
  transition:
    background-color var(--towa-transition),
    color var(--towa-transition),
    border-color var(--towa-transition),
    box-shadow var(--towa-transition),
    transform var(--towa-transition);
}

.towa-top-btn:focus-visible {
  outline: 2px solid var(--towa-primary);
  outline-offset: 2px;
}

.towa-top-btn--primary {
  background-color: var(--towa-primary);
  color: #fff;
  border-color: var(--towa-primary);
}

.towa-top-btn--primary:hover {
  background-color: var(--towa-primary-dark);
  border-color: var(--towa-primary-dark);
  box-shadow: var(--towa-shadow-md);
  transform: translateY(-1px);
}

.towa-top-btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--towa-shadow-sm);
}

.towa-top-btn--outline {
  background-color: transparent;
  color: var(--towa-primary);
  border-color: var(--towa-primary);
}

.towa-top-btn--outline:hover {
  background-color: var(--towa-primary);
  color: #fff;
  box-shadow: var(--towa-shadow-md);
  transform: translateY(-1px);
}

.towa-top-btn--outline:active {
  transform: translateY(0);
  box-shadow: var(--towa-shadow-sm);
}

/* --------------------------------------------------------------------------
   Products section
   -------------------------------------------------------------------------- */
.towa-top-products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .towa-top-products__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .towa-top-products__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

/* Product card */
.towa-top-pcard {
  display: flex;
  flex-direction: column;
  background-color: var(--towa-bg);
  border: 1px solid var(--towa-border);
  border-radius: var(--towa-radius-md);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition:
    box-shadow var(--towa-transition),
    transform var(--towa-transition),
    border-color var(--towa-transition);
}

.towa-top-pcard:hover {
  box-shadow: var(--towa-shadow-md);
  border-color: var(--towa-primary-light);
  transform: translateY(-2px);
}

.towa-top-pcard--featured {
  padding: 1.75rem;
  border-color: var(--towa-primary);
  box-shadow: var(--towa-shadow-sm);
}

.towa-top-pcard--featured:hover {
  box-shadow: var(--towa-shadow-lg);
}

/* Badges */
.towa-top-pcard__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2em 0.65em;
  border-radius: 3px;
  margin-bottom: 0.75rem;
  width: fit-content;
  line-height: 1.6;
}

.towa-top-pcard__badge--live {
  background-color: rgba(47, 133, 90, 0.12);
  color: var(--towa-success);
}

.towa-top-pcard__badge--active {
  background-color: rgba(42, 123, 123, 0.1);
  color: var(--towa-primary);
}

.towa-top-pcard__badge--dev {
  background-color: rgba(183, 121, 31, 0.1);
  color: var(--towa-warning);
}

.towa-top-pcard__badge--plan {
  background-color: rgba(90, 106, 122, 0.1);
  color: var(--towa-text-light);
}

.towa-top-pcard__title {
  font-family: var(--towa-font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--towa-heading);
  line-height: var(--towa-line-height-heading);
  margin: 0 0 0.5rem;
}

.towa-top-pcard__desc {
  font-size: 0.875rem;
  color: var(--towa-text-light);
  line-height: var(--towa-line-height);
  margin: 0;
  flex: 1;
}

/* --------------------------------------------------------------------------
   Story section
   -------------------------------------------------------------------------- */
.towa-top-story {
  background-color: var(--towa-bg-alt);
}

.towa-top-story__inner {
  max-width: 42rem;
  margin: 0 auto;
  text-align: center;
}

.towa-top-story__text {
  font-size: 0.9375rem;
  color: var(--towa-text);
  line-height: var(--towa-line-height);
  margin: 0;
}

@media (min-width: 768px) {
  .towa-top-story__text {
    font-size: 1rem;
  }
}

.towa-top-story__text + .towa-top-story__text {
  margin-top: 1.25rem;
}

/* --------------------------------------------------------------------------
   Journal section
   -------------------------------------------------------------------------- */
.towa-top-journal {
  background-color: var(--towa-bg);
}

.towa-top-journal__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .towa-top-journal__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .towa-top-journal__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

.towa-top-journal__more {
  display: block;
  text-align: center;
  margin-top: 2.5rem;
}

/* Journal card */
.towa-top-jcard {
  background-color: var(--towa-bg);
  border: 1px solid var(--towa-border);
  border-radius: var(--towa-radius-md);
  overflow: hidden;
  transition:
    box-shadow var(--towa-transition),
    transform var(--towa-transition),
    border-color var(--towa-transition);
}

.towa-top-jcard:hover {
  box-shadow: var(--towa-shadow-md);
  border-color: var(--towa-primary-light);
  transform: translateY(-2px);
}

.towa-top-jcard__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.towa-top-jcard__thumb {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--towa-bg-subtle);
}

.towa-top-jcard__thumb--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  background-color: var(--towa-bg-subtle);
  color: var(--towa-text-light);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.towa-top-jcard__body {
  padding: 1.125rem 1.25rem 1.25rem;
}

.towa-top-jcard__cat {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--towa-primary);
  background-color: rgba(42, 123, 123, 0.08);
  padding: 0.15em 0.55em;
  border-radius: 3px;
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.towa-top-jcard__title {
  font-family: var(--towa-font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--towa-heading);
  line-height: var(--towa-line-height-heading);
  margin: 0 0 0.4rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.towa-top-jcard__date {
  font-size: 0.75rem;
  color: var(--towa-text-light);
  margin: 0;
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   Contact section
   -------------------------------------------------------------------------- */
.towa-top-contact {
  background-color: var(--towa-bg-alt);
}

.towa-top-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 48rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .towa-top-contact__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

.towa-top-contact__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1.5rem 1.25rem;
  background-color: var(--towa-bg);
  border: 1px solid var(--towa-border);
  border-radius: var(--towa-radius-md);
  text-decoration: none;
  color: inherit;
  text-align: center;
  transition:
    box-shadow var(--towa-transition),
    transform var(--towa-transition),
    border-color var(--towa-transition);
}

.towa-top-contact__item:hover {
  box-shadow: var(--towa-shadow-md);
  border-color: var(--towa-primary-light);
  transform: translateY(-2px);
}

.towa-top-contact__label {
  font-family: var(--towa-font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--towa-heading);
  line-height: var(--towa-line-height-heading);
}

.towa-top-contact__sub {
  font-size: 0.8125rem;
  color: var(--towa-text-light);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Utility: sp-only (mobile only)
   -------------------------------------------------------------------------- */
.sp-only {
  display: block;
}

@media (min-width: 768px) {
  .sp-only {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Scroll animations (used by main.js IntersectionObserver)
   -------------------------------------------------------------------------- */
.towa-top-section-title,
.towa-top-pcard,
.towa-top-jcard,
.towa-top-story__text,
.towa-top-contact__item {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.towa-top-section-title.is-visible,
.towa-top-pcard.is-visible,
.towa-top-jcard.is-visible,
.towa-top-story__text.is-visible,
.towa-top-contact__item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for grid items */
.towa-top-pcard:nth-child(2),
.towa-top-jcard:nth-child(2) {
  transition-delay: 0.1s;
}

.towa-top-pcard:nth-child(3),
.towa-top-jcard:nth-child(3) {
  transition-delay: 0.2s;
}

.towa-top-pcard:nth-child(4) { transition-delay: 0.3s; }
.towa-top-pcard:nth-child(5) { transition-delay: 0.4s; }
.towa-top-pcard:nth-child(6) { transition-delay: 0.5s; }

.towa-top-contact__item:nth-child(2) { transition-delay: 0.1s; }
.towa-top-contact__item:nth-child(3) { transition-delay: 0.2s; }
.towa-top-contact__item:nth-child(4) { transition-delay: 0.3s; }

/* Footer base styles → moved to base.css section 5 */

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .towa-top-btn,
  .towa-top-pcard,
  .towa-top-jcard,
  .towa-top-contact__item {
    transition: none;
  }

  .towa-top-btn:hover,
  .towa-top-btn--primary:hover,
  .towa-top-btn--outline:hover,
  .towa-top-pcard:hover,
  .towa-top-jcard:hover,
  .towa-top-contact__item:hover {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   PC Navigation (1024px+)
   -------------------------------------------------------------------------- */
.header-nav {
    display: none;
}

@media (min-width: 1024px) {
    .header-nav {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .header-nav__list {
        display: flex;
        align-items: center;
        gap: 0;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .header-nav__item {
        position: relative;
    }

    .header-nav__item > a {
        display: block;
        padding: 0.5rem 0.85rem;
        color: var(--towa-text);
        font-size: 0.875rem;
        font-weight: 500;
        text-decoration: none;
        letter-spacing: 0.03em;
        transition: color var(--towa-transition);
    }

    .header-nav__item > a:hover {
        color: var(--towa-primary);
    }

    /* Dropdown */
    .header-nav__item--dropdown .header-dropdown {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 180px;
        background: var(--towa-bg);
        border: 1px solid var(--towa-border);
        border-radius: var(--towa-radius-sm);
        box-shadow: var(--towa-shadow-md);
        padding: 0.4rem 0;
        list-style: none;
        margin: 0;
        z-index: 100;
    }

    .header-nav__item--dropdown:hover .header-dropdown {
        display: block;
    }

    .header-dropdown li a {
        display: block;
        padding: 0.5rem 1rem;
        color: var(--towa-text);
        font-size: 0.8125rem;
        text-decoration: none;
        transition: background-color var(--towa-transition), color var(--towa-transition);
    }

    .header-dropdown li a:hover {
        background-color: var(--towa-bg-alt);
        color: var(--towa-primary);
    }

    /* X link */
    .header-nav__x {
        display: inline-flex;
        align-items: center;
        margin-left: 0.5rem;
        padding: 0.4rem 0.6rem;
        color: var(--towa-text-light);
        font-size: 0.875rem;
        font-weight: 700;
        text-decoration: none;
        transition: color var(--towa-transition);
    }

    .header-nav__x:hover {
        color: var(--towa-primary);
    }

    /* Hide hamburger on desktop */
    .menu-toggle {
        display: none;
    }
}

/* About page hero: limit height on mobile */
@media (max-width: 768px) {
    .towa-about-hero {
        min-height: 50vh;
        max-height: 60vh;
    }

    .towa-about-hero__content {
        padding-top: 80px;
    }
}

/* Ensure consistent padding between header and content on all sub-pages */
.towa-contact-page {
    padding-top: 80px;
}

/* --------------------------------------------------------------------------
   Keyframes (About page hero animations)
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes revealText {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(8px);
    }
}

@keyframes circleRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes circlePulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.15;
    }
}

/* Sub-page styles (article-footer, article-tags, article-share, etc.) → moved to base.css section 9 */


/* --------------------------------------------------------------------------
   Action Cards (3導線)
   -------------------------------------------------------------------------- */
.towa-top-actions {
    padding: 0 1.5rem 3rem;
}

@media (min-width: 768px) {
    .towa-top-actions { padding: 0 2rem 4rem; }
}

.towa-top-actions__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 64rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .towa-top-actions__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.25rem;
    }
}

.towa-top-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--towa-bg);
    border: 1.5px solid var(--towa-border);
    border-radius: var(--towa-radius-lg);
    text-decoration: none;
    color: inherit;
    transition:
        border-color var(--towa-transition),
        box-shadow var(--towa-transition),
        transform var(--towa-transition);
}

.towa-top-action:hover {
    border-color: var(--towa-primary);
    box-shadow: var(--towa-shadow-md);
    transform: translateY(-3px);
}

.towa-top-action__icon {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 0.75rem;
}

.towa-top-action__title {
    font-family: var(--towa-font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--towa-heading);
    margin: 0 0 0.5rem;
}

.towa-top-action__desc {
    font-size: 0.8125rem;
    color: var(--towa-text-light);
    line-height: 1.7;
    margin: 0 0 1rem;
    flex: 1;
}

.towa-top-action__link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--towa-primary);
    transition: color var(--towa-transition);
}

.towa-top-action:hover .towa-top-action__link {
    color: var(--towa-primary-dark);
}
/* ==========================================================================
   style-new.css — towanone.com デザインV2
   「Stripe meets TeamLab」— 音の伝統が未来に再接続される入口
   front-page-new.php と組み合わせて使用
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Hero（ダーク、発光弦フィールド）
   -------------------------------------------------------------------------- */
.towa-top-hero--dark {
    position: relative;
    min-height: 100svh;
    max-height: 920px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(180deg, #182126 0%, #12191d 100%);
    color: #fcfbf8;
    padding: 0 1.5rem;
}

@media (min-width: 768px) {
    .towa-top-hero--dark { padding: 0 2rem; }
}

.towa-top-hero--dark .towa-top-hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.7;
    pointer-events: none;
}

.towa-top-hero--dark .towa-top-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 560px;
    margin: 0 auto 0 clamp(20px, 8vw, 120px);
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__inner {
        margin: 0 auto;
        text-align: center;
    }
}

/* Eyebrow */
.towa-top-hero__eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--towa-primary-light, #4cc4c4);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: heroReveal 1.6s ease-out 0.2s forwards;
}

/* Tagline */
.towa-top-hero--dark .towa-top-hero__tagline {
    font-family: "Noto Serif JP", serif;
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    font-weight: 600;
    color: #fcfbf8;
    margin: 0 0 1.5rem;
    opacity: 0;
    animation: heroReveal 1.8s ease-out 0.4s forwards;
}

/* Sub */
.towa-top-hero--dark .towa-top-hero__sub {
    font-size: clamp(0.9375rem, 1.8vw, 1.25rem);
    line-height: 1.85;
    color: rgba(252, 251, 248, 0.72);
    margin: 0 0 2.5rem;
    max-width: 34ch;
    opacity: 0;
    animation: heroReveal 1.6s ease-out 0.8s forwards;
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__sub {
        max-width: none;
    }
}

/* CTA */
.towa-top-hero--dark .towa-top-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    opacity: 0;
    animation: heroReveal 1.4s ease-out 1.1s forwards;
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__cta {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Glow button */
.towa-top-btn--glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8em 2em;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: var(--towa-font-body);
    color: #fff;
    background: var(--towa-primary);
    border: none;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 0 24px rgba(76, 196, 196, 0.25);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.towa-top-btn--glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 36px rgba(76, 196, 196, 0.4);
}

/* Ghost button */
.towa-top-btn--ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8em 2em;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: var(--towa-font-body);
    color: rgba(252, 251, 248, 0.85);
    background: transparent;
    border: 1.5px solid rgba(252, 251, 248, 0.25);
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    transition: border-color 0.25s ease, color 0.25s ease;
}

.towa-top-btn--ghost:hover {
    border-color: rgba(252, 251, 248, 0.5);
    color: #fff;
}

/* Hero reveal animation */
@keyframes heroReveal {
    0% {
        opacity: 0;
        transform: translateY(28px);
        filter: blur(8px);
    }
    60% { filter: blur(0); }
    100% {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* --------------------------------------------------------------------------
   2. Story セクション（温かいダーク＋余白）
   -------------------------------------------------------------------------- */
.towa-top-story {
    background: linear-gradient(180deg, #eceae1 0%, #e4e0d6 100%);
    padding: clamp(4rem, 10vh, 7rem) 1.5rem;
}

@media (min-width: 768px) {
    .towa-top-story { padding: clamp(5rem, 12vh, 8rem) 2rem; }
}

.towa-top-story__inner {
    max-width: 38rem;
    margin: 0 auto;
    position: relative;
}

/* 左の縦線装飾 */
.towa-top-story__inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -2rem;
    width: 3px;
    height: 3rem;
    background: var(--towa-primary);
    border-radius: 2px;
    opacity: 0.25;
}

@media (max-width: 767px) {
    .towa-top-story__inner::before { left: 0; }
}

.towa-top-story .towa-top-section-title {
    text-align: left;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 2rem;
}

.towa-top-story__text {
    font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
    line-height: 2;
    color: #243036;
    margin: 0 0 1.25rem;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.9s ease, transform 0.9s ease;
}

.towa-top-story__text.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.towa-top-story__text:nth-child(3) { transition-delay: 0.15s; }
.towa-top-story__text:nth-child(4) { transition-delay: 0.3s; }
.towa-top-story__text:nth-child(5) { transition-delay: 0.45s; }
.towa-top-story__text:nth-child(6) { transition-delay: 0.6s; }
.towa-top-story__text:nth-child(7) { transition-delay: 0.75s; }

/* --------------------------------------------------------------------------
   3. Events セクション（ダーク背景）
   -------------------------------------------------------------------------- */
.towa-top-events {
    background:
        radial-gradient(circle at 50% 10%, rgba(55, 125, 125, 0.16), transparent 30%),
        linear-gradient(180deg, #1a2226 0%, #11181b 100%);
    color: #f5f5ef;
    padding: clamp(4rem, 10vh, 7rem) 1.5rem;
}

@media (min-width: 768px) {
    .towa-top-events { padding: clamp(5rem, 12vh, 8rem) 2rem; }
}

.towa-top-events .towa-top-section-title {
    color: #fcfbf8;
}

.towa-top-events .towa-top-section-lead {
    color: rgba(252, 251, 248, 0.72);
}

.towa-top-events__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: 48rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .towa-top-events__grid { grid-template-columns: 1fr 1fr; }
}

.towa-top-event-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(12px);
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.towa-top-event-card:hover {
    border-color: rgba(76, 196, 196, 0.3);
    transform: translateY(-3px);
}

.towa-top-event-card__badge {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 0.2em 0.7em;
    border-radius: 999px;
    margin-bottom: 0.75rem;
    background: rgba(76, 196, 196, 0.15);
    color: #4cc4c4;
}

.towa-top-event-card__title {
    font-family: "Noto Serif JP", serif;
    font-size: 1.25rem;
    color: #fcfbf8;
    margin: 0 0 0.5rem;
}

.towa-top-event-card__desc {
    font-size: 0.875rem;
    color: rgba(252, 251, 248, 0.68);
    line-height: 1.8;
    margin: 0;
}

/* --------------------------------------------------------------------------
   4. Technology タブ切替
   -------------------------------------------------------------------------- */
.towa-top-tech {
    background: linear-gradient(180deg, #f6f4ed 0%, #fbfaf7 100%);
    padding: clamp(4rem, 10vh, 7rem) 1.5rem;
}

@media (min-width: 768px) {
    .towa-top-tech { padding: clamp(5rem, 12vh, 8rem) 2rem; }
}

.towa-top-tech__tabs {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--towa-border);
}

.towa-top-tech__tab {
    padding: 0.75rem 1.5rem;
    font-family: var(--towa-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--towa-text-light);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.25s ease, border-color 0.25s ease;
}

.towa-top-tech__tab:hover { color: var(--towa-text); }

.towa-top-tech__tab--active {
    color: var(--towa-primary);
    border-bottom-color: var(--towa-primary);
    font-weight: 600;
}

.towa-top-tech__panel { display: none; }

.towa-top-tech__panel--active {
    display: block;
    animation: tabFadeIn 0.35s ease;
}

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 767px) {
    .towa-top-tech__tabs {
        overflow-x: auto;
        scrollbar-width: none;
    }
    .towa-top-tech__tabs::-webkit-scrollbar { display: none; }
    .towa-top-tech__tab {
        white-space: nowrap;
        padding: 0.6rem 1rem;
        font-size: 0.8125rem;
    }
}

/* --------------------------------------------------------------------------
   5. カードホバー強化
   -------------------------------------------------------------------------- */
.towa-top-pcard:hover {
    transform: translateY(-4px);
    box-shadow:
        0 12px 36px rgba(75, 62, 58, 0.08),
        0 2px 8px rgba(42, 123, 123, 0.06);
    border-color: rgba(42, 123, 123, 0.2);
}

/* Journal サムネイルズーム */
.towa-top-jcard__thumb { overflow: hidden; }
.towa-top-jcard__thumb img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.towa-top-jcard:hover .towa-top-jcard__thumb img {
    transform: scale(1.04);
}

/* 空サムネイル */
.towa-top-jcard__thumb--empty::after {
    content: 'とわのね';
    opacity: 0.25;
    font-family: "Noto Serif JP", serif;
    font-size: 1rem;
}

/* --------------------------------------------------------------------------
   6. 3導線カード アイコン円形背景
   -------------------------------------------------------------------------- */
.towa-top-action__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1.5rem;
    background: rgba(42, 123, 123, 0.06);
    border-radius: 50%;
    margin-bottom: 1rem;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.towa-top-action:hover .towa-top-action__icon {
    background: rgba(42, 123, 123, 0.12);
    transform: scale(1.05);
}

/* --------------------------------------------------------------------------
   7. Contact セクション（ダーク）
   -------------------------------------------------------------------------- */
.towa-top-contact {
    background:
        radial-gradient(circle at 15% 20%, rgba(42,123,123,0.18), transparent 24%),
        radial-gradient(circle at 85% 80%, rgba(122,107,78,0.14), transparent 28%),
        linear-gradient(180deg, #182126 0%, #12191d 100%);
    color: #f7f6f1;
    padding: clamp(4rem, 10vh, 7rem) 1.5rem;
}

.towa-top-contact .towa-top-section-title {
    color: #fcfbf8;
}

.towa-top-contact__item {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    color: #fcfbf8;
}

.towa-top-contact__item:hover {
    border-color: rgba(76, 196, 196, 0.3);
    background: rgba(255, 255, 255, 0.1);
}

.towa-top-contact__label { color: #fcfbf8; }
.towa-top-contact__sub { color: rgba(252, 251, 248, 0.6); }

/* --------------------------------------------------------------------------
   8. prefers-reduced-motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .towa-top-hero__eyebrow,
    .towa-top-hero--dark .towa-top-hero__tagline,
    .towa-top-hero--dark .towa-top-hero__sub,
    .towa-top-hero--dark .towa-top-hero__cta {
        opacity: 1;
        animation: none;
        filter: none;
        transform: none;
    }
    .towa-top-story__text {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .towa-top-jcard__thumb img { transition: none; }
}


/* ==========================================================================
   Design V5 — ダーク統一基調 + グラデーション遷移
   ========================================================================== */

/* --------------------------------------------------------------------------
   共通: ダーク背景パレット
   -------------------------------------------------------------------------- */
:root {
    --v5-dark-1: #0f1419;
    --v5-dark-2: #141a20;
    --v5-dark-3: #1a2128;
    --v5-dark-4: #202830;
    --v5-warm: #1e2220;
    --v5-text: #e8e6df;
    --v5-muted: rgba(232, 230, 223, 0.55);
    --v5-border: rgba(255,255,255,0.07);
    --v5-gold: #c4a45a;
    --v5-gold-dim: rgba(196,164,90,0.15);
    --v5-teal: #2A7B7B;
    --v5-teal-glow: rgba(91,184,184,0.12);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.towa-top-hero--dark {
    position: relative;
    min-height: 100svh;
    max-height: 960px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--v5-dark-1);
    color: var(--v5-text);
    padding: 0 clamp(1.5rem, 5vw, 4rem);
}

/* Canvas animation layer */
.towa-top-hero__canvas {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.towa-top-hero--dark .towa-top-hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-size: cover;
    background-position: center right;
    opacity: 0.8;
    pointer-events: none;
}

.towa-top-hero--dark .towa-top-hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(15,20,25,0.9) 0%, rgba(15,20,25,0.5) 40%, transparent 100%);
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__bg::after {
        background: linear-gradient(180deg, rgba(15,20,25,0.7) 0%, rgba(15,20,25,0.5) 100%);
    }
}

.towa-top-hero--dark .towa-top-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 36rem;
    margin: 0 0 0 clamp(0px, 6vw, 80px);
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__inner { margin: 0 auto; text-align: center; }
}

.towa-top-hero__eyebrow {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    color: var(--v5-gold);
    margin-bottom: 2rem;
    opacity: 0;
    animation: heroReveal 1.6s ease-out 0.3s forwards;
}

.towa-top-hero--dark .towa-top-hero__tagline {
    font-family: var(--towa-font-heading);
    font-size: clamp(2.5rem, 7vw, 5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 600;
    color: #f8f7f3;
    margin: 0 0 1.75rem;
    opacity: 0;
    animation: heroReveal 2s ease-out 0.5s forwards;
}

.towa-top-hero--dark .towa-top-hero__sub {
    font-size: clamp(0.9375rem, 1.6vw, 1.125rem);
    line-height: 1.9;
    color: var(--v5-muted);
    margin: 0 0 2.5rem;
    max-width: 30ch;
    opacity: 0;
    animation: heroReveal 1.6s ease-out 0.9s forwards;
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__sub { max-width: none; }
}

.towa-top-hero--dark .towa-top-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    opacity: 0;
    animation: heroReveal 1.4s ease-out 1.2s forwards;
}

@media (max-width: 767px) {
    .towa-top-hero--dark .towa-top-hero__cta { flex-direction: column; align-items: stretch; }
}

.towa-top-btn--glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85em 2.2em;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: var(--towa-font-body);
    color: var(--v5-dark-1);
    background: var(--v5-gold);
    border: none;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(196,164,90,0.2), 0 4px 12px rgba(0,0,0,0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}

.towa-top-btn--glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 32px rgba(196,164,90,0.4), 0 8px 20px rgba(0,0,0,0.3);
}

.towa-top-btn--ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85em 2.2em;
    font-size: 0.9375rem;
    font-weight: 500;
    font-family: var(--towa-font-body);
    color: rgba(248,247,243,0.8);
    background: transparent;
    border: 1px solid rgba(248,247,243,0.15);
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.towa-top-btn--ghost:hover {
    border-color: rgba(248,247,243,0.4);
    color: #fff;
    background: rgba(248,247,243,0.05);
}

@keyframes heroReveal {
    0% { opacity: 0; transform: translateY(24px); filter: blur(6px); }
    50% { filter: blur(0); }
    100% { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* --------------------------------------------------------------------------
   2. ヘッダー（透明→ダーク半透明）
   -------------------------------------------------------------------------- */
.site-header {
    background: transparent !important;
    backdrop-filter: none;
    transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.site-header.scrolled {
    background: rgba(15, 20, 25, 0.85) !important;
    backdrop-filter: blur(12px);
}

.site-header .site-title-link,
.site-header .header-nav__item > a,
.site-header .header-nav__x {
    color: var(--v5-text);
}

.site-header.scrolled .site-title-link,
.site-header.scrolled .header-nav__item > a {
    color: var(--v5-text);
}

/* --------------------------------------------------------------------------
   3. 3導線カード（ダーク連続）
   -------------------------------------------------------------------------- */
.towa-top-actions {
    background: var(--v5-dark-2);
    padding: clamp(3rem, 6vh, 5rem) clamp(1.5rem, 5vw, 4rem);
}

.towa-top-action {
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--v5-border);
    border-radius: 20px;
    color: var(--v5-text);
    backdrop-filter: blur(8px);
}

.towa-top-action:hover {
    border-color: var(--v5-gold-dim);
    box-shadow: 0 8px 28px rgba(0,0,0,0.25);
    transform: translateY(-3px);
}

.towa-top-action__icon {
    background: var(--v5-gold-dim);
    color: var(--v5-gold);
}

.towa-top-action:hover .towa-top-action__icon {
    background: rgba(196,164,90,0.22);
}

.towa-top-action__title { color: var(--v5-text); }
.towa-top-action__desc { color: var(--v5-muted); }
.towa-top-action__link { color: var(--v5-gold); }

/* --------------------------------------------------------------------------
   4. Technology（ダーク統一 + glassmorphism + 左寄せ見出し）
   -------------------------------------------------------------------------- */
.towa-top-tech {
    background:
        radial-gradient(ellipse 60% 40% at 80% 20%, rgba(42,123,123,0.06), transparent 60%),
        linear-gradient(180deg, var(--v5-dark-2) 0%, var(--v5-dark-3) 100%);
    padding: clamp(5rem, 10vh, 8rem) clamp(1.5rem, 5vw, 4rem);
    color: var(--v5-text);
}

.towa-top-tech .towa-top-section-title {
    color: #f8f7f3;
    text-align: left;
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
}

.towa-top-tech .towa-top-section-title::after {
    margin-left: 0;
}

.towa-top-tech .towa-top-section-lead {
    color: var(--v5-muted);
    text-align: left;
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
}

.towa-top-tech__tabs {
    display: flex;
    justify-content: flex-start;
    gap: 0;
    margin-bottom: 3rem;
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
    border-bottom: 1px solid var(--v5-border);
}

.towa-top-tech__tab {
    padding: 0.875rem 1.75rem;
    font-family: var(--towa-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--v5-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.25s, border-color 0.25s;
}

.towa-top-tech__tab:first-child {
    padding-left: 0;
}

.towa-top-tech__tab:hover { color: var(--v5-text); }

.towa-top-tech__tab--active {
    color: var(--v5-gold);
    border-bottom-color: var(--v5-gold);
    font-weight: 600;
}

.towa-top-tech__panel { display: none; }
.towa-top-tech__panel--active { display: block; animation: tabFade 0.35s ease; }

@keyframes tabFade {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* カード（glassmorphism — Events/Contactと統一） */
.towa-top-tech .towa-top-pcard {
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--v5-border);
    border-radius: 20px;
    color: var(--v5-text);
    backdrop-filter: blur(12px);
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.towa-top-tech .towa-top-pcard:hover {
    border-color: var(--v5-gold-dim);
    box-shadow:
        0 12px 32px rgba(0,0,0,0.2),
        0 0 0 1px rgba(196,164,90,0.08);
    transform: translateY(-4px);
}

.towa-top-tech .towa-top-pcard__title { color: var(--v5-text); }
.towa-top-tech .towa-top-pcard__desc { color: var(--v5-muted); }

/* 開発中/計画中: グレーアウト */
.towa-top-tech .towa-top-pcard__badge--dev,
.towa-top-tech .towa-top-pcard__badge--plan {
    background: rgba(255,255,255,0.05);
    color: rgba(232,230,223,0.4);
}

.towa-top-tech .towa-top-pcard:has(.towa-top-pcard__badge--dev),
.towa-top-tech .towa-top-pcard:has(.towa-top-pcard__badge--plan) {
    opacity: 0.55;
    border-color: rgba(255,255,255,0.04);
}

.towa-top-tech .towa-top-pcard:has(.towa-top-pcard__badge--dev):hover,
.towa-top-tech .towa-top-pcard:has(.towa-top-pcard__badge--plan):hover {
    opacity: 0.75;
}

/* 公開中: ゴールドアクセント（Eventsバッジと統一） */
.towa-top-tech .towa-top-pcard__badge--live {
    background: var(--v5-gold-dim);
    color: var(--v5-gold);
    border-radius: 999px;
}

.towa-top-tech .towa-top-pcard__badge--active {
    background: var(--v5-teal-glow);
    color: var(--towa-primary-light);
    border-radius: 999px;
}

.towa-top-tech .towa-top-pcard:has(.towa-top-pcard__badge--live),
.towa-top-tech .towa-top-pcard:has(.towa-top-pcard__badge--active) {
    border-color: rgba(196,164,90,0.12);
}

.towa-top-tech__panel .towa-top-products__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: 72rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .towa-top-tech__panel .towa-top-products__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .towa-top-tech__panel .towa-top-products__grid { grid-template-columns: repeat(3, 1fr); }
}

/* --------------------------------------------------------------------------
   5. Story（わずかに明るいダーク — 呼吸ポイント）
   -------------------------------------------------------------------------- */
.towa-top-story {
    background: linear-gradient(180deg, var(--v5-dark-3) 0%, var(--v5-dark-4) 50%, var(--v5-dark-3) 100%);
    padding: clamp(5rem, 10vh, 8rem) clamp(1.5rem, 5vw, 4rem);
    color: var(--v5-text);
}

.towa-top-story .towa-top-section-title {
    text-align: left;
    margin-bottom: 2rem;
    color: #f8f7f3;
}

.towa-top-story__inner {
    max-width: 48rem;
    margin: 0 auto;
    position: relative;
}

.towa-top-story__inner::before {
    content: '';
    position: absolute;
    top: 0.3rem;
    left: -2rem;
    width: 3px;
    height: 2.5rem;
    background: var(--v5-gold);
    border-radius: 2px;
    opacity: 0.35;
}

@media (max-width: 767px) {
    .towa-top-story__inner::before { left: 0; }
}

.towa-top-story__text {
    font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
    line-height: 2.1;
    letter-spacing: 0.02em;
    color: rgba(232,230,223,0.88);
    margin: 0 0 1.75rem;
    max-width: 30em;
}

/* Story内ボタン（ダーク背景用） */
.towa-top-story .towa-top-btn--outline {
    color: var(--v5-gold);
    border-color: rgba(196,164,90,0.3);
    margin-top: 1rem;
}

.towa-top-story .towa-top-btn--outline:hover {
    background: var(--v5-gold);
    color: var(--v5-dark-1);
    border-color: var(--v5-gold);
}

/* --------------------------------------------------------------------------
   6. Events（ゴールドアクセント強め）
   -------------------------------------------------------------------------- */
.towa-top-events {
    background:
        radial-gradient(circle at 40% 20%, rgba(196,164,90,0.05), transparent 40%),
        linear-gradient(180deg, var(--v5-dark-3) 0%, var(--v5-dark-2) 100%);
    color: var(--v5-text);
    padding: clamp(5rem, 10vh, 8rem) clamp(1.5rem, 5vw, 4rem);
}

.towa-top-events .towa-top-section-title { color: #f8f7f3; }
.towa-top-events .towa-top-section-lead { color: var(--v5-muted); }

.towa-top-events__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: 48rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .towa-top-events__grid { grid-template-columns: 1fr 1fr; }
}

.towa-top-event-card {
    padding: 2rem;
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--v5-border);
    border-radius: 20px;
    backdrop-filter: blur(12px);
    transition: border-color 0.3s, transform 0.3s;
}

.towa-top-event-card:hover {
    border-color: var(--v5-gold-dim);
    transform: translateY(-3px);
}

.towa-top-event-card__badge {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 0.2em 0.7em;
    border-radius: 999px;
    margin-bottom: 0.75rem;
    background: var(--v5-gold-dim);
    color: var(--v5-gold);
}

.towa-top-event-card__title {
    font-family: var(--towa-font-heading);
    font-size: 1.25rem;
    color: #f8f7f3;
    margin: 0 0 0.5rem;
}

.towa-top-event-card__desc {
    font-size: 0.875rem;
    color: var(--v5-muted);
    line-height: 1.8;
    margin: 0;
}

/* --------------------------------------------------------------------------
   7. Journal（やや明るいダーク — 可読性確保）
   -------------------------------------------------------------------------- */
.towa-top-journal {
    background: linear-gradient(180deg, var(--v5-dark-2) 0%, var(--v5-dark-3) 100%);
    padding: clamp(5rem, 10vh, 8rem) clamp(1.5rem, 5vw, 4rem);
    color: var(--v5-text);
}

.towa-top-journal .towa-top-section-title { color: #f8f7f3; }
.towa-top-journal .towa-top-section-lead { color: var(--v5-muted); }

.towa-top-jcard {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--v5-border);
    border-radius: 16px;
    color: var(--v5-text);
}

.towa-top-jcard:hover {
    border-color: var(--v5-gold-dim);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.towa-top-jcard__body { color: var(--v5-text); }
.towa-top-jcard__title { color: var(--v5-text); }
.towa-top-jcard__cat { color: var(--v5-gold); background: var(--v5-gold-dim); }
.towa-top-jcard__date { color: var(--v5-muted); }

.towa-top-jcard__thumb,
.towa-top-jcard__thumb--empty {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 16px 16px 0 0;
}

.towa-top-jcard__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}

.towa-top-jcard:hover .towa-top-jcard__thumb img { transform: scale(1.03); }

.towa-top-jcard__thumb--empty {
    background: linear-gradient(135deg, var(--v5-dark-3) 0%, var(--v5-dark-4) 100%);
}

/* Journal内ボタン（ダーク背景用） */
.towa-top-journal .towa-top-btn--outline {
    color: var(--v5-gold);
    border-color: rgba(196,164,90,0.3);
}

.towa-top-journal .towa-top-btn--outline:hover {
    background: var(--v5-gold);
    color: var(--v5-dark-1);
    border-color: var(--v5-gold);
}

/* --------------------------------------------------------------------------
   8. Contact（最深ダーク）
   -------------------------------------------------------------------------- */
.towa-top-contact {
    background:
        radial-gradient(circle at 20% 30%, rgba(196,164,90,0.05), transparent 25%),
        linear-gradient(180deg, var(--v5-dark-3) 0%, var(--v5-dark-1) 100%);
    color: var(--v5-text);
    padding: clamp(5rem, 10vh, 8rem) clamp(1.5rem, 5vw, 4rem);
}

.towa-top-contact .towa-top-section-title { color: #f8f7f3; }

.towa-top-contact__grid {
    max-width: 48rem;
}

.towa-top-contact__item {
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--v5-border);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    color: #f8f7f3;
}

.towa-top-contact__item:hover {
    border-color: var(--v5-gold-dim);
    background: rgba(255,255,255,0.05);
}

.towa-top-contact__label { color: #f8f7f3; }
.towa-top-contact__sub { color: var(--v5-muted); }

/* --------------------------------------------------------------------------
   セクション見出し（ダーク上）
   -------------------------------------------------------------------------- */
.towa-top-section-title {
    font-family: var(--towa-font-heading);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
    text-align: center;
    margin: 0 0 0.75rem;
}

.towa-top-section-lead {
    font-size: clamp(0.875rem, 1.4vw, 1rem);
    text-align: center;
    max-width: 32rem;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   3導線アイコン
   -------------------------------------------------------------------------- */
.towa-top-action__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1.5rem;
    border-radius: 50%;
    margin-bottom: 1rem;
    transition: background 0.3s, transform 0.3s;
}

/* --------------------------------------------------------------------------
   スクロールアニメーション
   -------------------------------------------------------------------------- */
.towa-top-section-title,
.towa-top-section-lead,
.towa-top-pcard,
.towa-top-action,
.towa-top-jcard,
.towa-top-event-card,
.towa-top-story__text {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1),
                transform 0.7s cubic-bezier(0.4,0,0.2,1);
}

.is-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.towa-top-pcard:nth-child(2), .towa-top-action:nth-child(2), .towa-top-jcard:nth-child(2) { transition-delay: 0.08s; }
.towa-top-pcard:nth-child(3), .towa-top-action:nth-child(3), .towa-top-jcard:nth-child(3) { transition-delay: 0.16s; }
.towa-top-pcard:nth-child(4) { transition-delay: 0.24s; }
.towa-top-pcard:nth-child(5) { transition-delay: 0.32s; }

/* --------------------------------------------------------------------------
   Mobile タブ
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
    .towa-top-tech__tabs {
        overflow-x: auto;
        scrollbar-width: none;
        justify-content: flex-start;
    }
    .towa-top-tech__tabs::-webkit-scrollbar { display: none; }
    .towa-top-tech__tab {
        white-space: nowrap;
        padding: 0.7rem 1rem;
        font-size: 0.8125rem;
    }
    .towa-top-tech .towa-top-section-title,
    .towa-top-tech .towa-top-section-lead {
        text-align: left;
    }
}

@media (prefers-reduced-motion: reduce) {
    .towa-top-hero__eyebrow,
    .towa-top-hero--dark .towa-top-hero__tagline,
    .towa-top-hero--dark .towa-top-hero__sub,
    .towa-top-hero--dark .towa-top-hero__cta {
        opacity: 1; animation: none; filter: none; transform: none;
    }
    .towa-top-section-title, .towa-top-section-lead,
    .towa-top-pcard, .towa-top-action, .towa-top-jcard,
    .towa-top-event-card, .towa-top-story__text {
        opacity: 1; transform: none; transition: none;
    }
}

/* --------------------------------------------------------------------------
   Tools セクション（プレビュー6件）
   -------------------------------------------------------------------------- */
.towa-top-tools {
    background: linear-gradient(180deg, var(--v5-dark-3) 0%, var(--v5-dark-2) 100%);
    padding: clamp(4rem, 8vh, 6rem) clamp(1.5rem, 5vw, 4rem);
    color: var(--v5-text);
}

.towa-top-tools .towa-top-section-title { color: #f8f7f3; }
.towa-top-tools .towa-top-section-lead { color: var(--v5-muted); }

.towa-top-tools__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    max-width: 48rem;
    margin: 0 auto 2rem;
}

@media (min-width: 768px) {
    .towa-top-tools__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
    .towa-top-tools__grid { grid-template-columns: repeat(6, 1fr); }
}

.towa-top-tool {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--v5-muted);
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--v5-border);
    border-radius: 12px;
    text-decoration: none;
    text-align: center;
    transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.towa-top-tool:hover {
    border-color: var(--v5-gold-dim);
    color: var(--v5-text);
    background: rgba(255,255,255,0.04);
}

.towa-top-tools__more {
    text-align: center;
}

/* --------------------------------------------------------------------------
   Products compact（開発中はタイトルのみ）
   -------------------------------------------------------------------------- */
.towa-top-products__grid--compact {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 60rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .towa-top-products__grid--compact {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.towa-top-products__grid--compact .towa-top-pcard--featured {
    grid-row: span 1;
}

/* ==========================================================================
   V5.1 — フッター統一 + モチーフ + アニメーション
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. フッター（ダーク統一 + 波形モチーフ）
   -------------------------------------------------------------------------- */
.towa-footer {
    margin-top: 0;
    background:
        radial-gradient(circle at 30% 80%, rgba(196,164,90,0.04), transparent 30%),
        linear-gradient(180deg, var(--v5-dark-2, #141a20) 0%, var(--v5-dark-1, #0f1419) 100%);
    border-top: 1px solid rgba(255,255,255,0.06);
    color: rgba(232,230,223,0.8);
    position: relative;
    overflow: hidden;
}

/* 波形モチーフ（薄く） */
.towa-footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(ellipse 60% 30% at 70% 20%, rgba(42,123,123,0.06), transparent),
        radial-gradient(ellipse 40% 20% at 20% 70%, rgba(196,164,90,0.04), transparent);
    pointer-events: none;
}

.towa-footer__logo {
    color: var(--v5-gold, #c4a45a);
}

.towa-footer__logo:hover {
    color: var(--v5-gold, #d9c48e);
}

.towa-footer__tagline {
    color: rgba(232,230,223,0.7);
}

.towa-footer__desc {
    color: rgba(232,230,223,0.45);
}

.towa-footer__nav a {
    color: rgba(232,230,223,0.65);
}

.towa-footer__nav a:hover {
    color: var(--v5-gold, #c4a45a);
}

.towa-footer__sns a {
    color: rgba(232,230,223,0.5);
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.08);
}

.towa-footer__sns a:hover {
    color: #fff;
    background: var(--v5-gold-dim, rgba(196,164,90,0.15));
    border-color: var(--v5-gold-dim, rgba(196,164,90,0.15));
}

.towa-footer__bottom {
    border-top-color: rgba(255,255,255,0.06);
}

.towa-footer__bottom small {
    color: rgba(232,230,223,0.35);
}

/* --------------------------------------------------------------------------
   2. ゴールドモチーフを随所に
   -------------------------------------------------------------------------- */

/* セクション見出し装飾線 */
.towa-top-section-title::after {
    content: '';
    display: block;
    width: 2.5rem;
    height: 2px;
    margin: 0.75rem auto 0;
    background: linear-gradient(90deg, var(--v5-gold, #c4a45a), transparent);
    border-radius: 1px;
}

.towa-top-story .towa-top-section-title::after {
    margin-left: 0;
}

/* カードホバー時のゴールドグロー */
.towa-top-pcard:hover,
.towa-top-action:hover,
.towa-top-event-card:hover {
    box-shadow:
        0 12px 32px rgba(0,0,0,0.2),
        0 0 0 1px rgba(196,164,90,0.08);
}

.towa-top-jcard:hover {
    box-shadow:
        0 12px 32px rgba(0,0,0,0.2),
        inset 0 1px 0 rgba(196,164,90,0.1);
}

/* セクション間の区切り線（波形風グラデーション） */
.towa-top-actions::after,
.towa-top-tech::after,
.towa-top-tools::after,
.towa-top-journal::after,
.towa-top-events::after,
.towa-top-story::after {
    content: '';
    display: block;
    height: 1px;
    margin: 0 auto;
    max-width: 60%;
    background: linear-gradient(90deg, transparent, rgba(196,164,90,0.15), rgba(42,123,123,0.1), transparent);
}

/* Story引用マーク — ゴールド強化 */
.towa-top-story__inner::before {
    background: linear-gradient(180deg, var(--v5-gold, #c4a45a), transparent);
    opacity: 0.5;
    height: 3rem;
}

/* --------------------------------------------------------------------------
   3. スクロールアニメーション統一
   -------------------------------------------------------------------------- */

/* ベースの非表示状態 */
.towa-top-section-title,
.towa-top-section-lead,
.towa-top-pcard,
.towa-top-action,
.towa-top-jcard,
.towa-top-event-card,
.towa-top-story__text,
.towa-top-tool,
.towa-top-tools__more,
.towa-top-journal__more,
.towa-top-story .towa-top-btn--ghost {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 表示状態 */
.is-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* stagger: カード群 */
.towa-top-action:nth-child(2),
.towa-top-pcard:nth-child(2),
.towa-top-jcard:nth-child(2),
.towa-top-tool:nth-child(2) { transition-delay: 0.06s; }

.towa-top-action:nth-child(3),
.towa-top-pcard:nth-child(3),
.towa-top-jcard:nth-child(3),
.towa-top-tool:nth-child(3) { transition-delay: 0.12s; }

.towa-top-pcard:nth-child(4),
.towa-top-tool:nth-child(4) { transition-delay: 0.18s; }

.towa-top-tool:nth-child(5) { transition-delay: 0.24s; }
.towa-top-tool:nth-child(6) { transition-delay: 0.3s; }

/* stagger: Story段落 */
.towa-top-story__text:nth-child(3) { transition-delay: 0.12s; }
.towa-top-story .towa-top-btn--ghost { transition-delay: 0.24s; }

/* stagger: Events */
.towa-top-event-card:nth-child(2) { transition-delay: 0.1s; }

/* --------------------------------------------------------------------------
   prefers-reduced-motion（V5.1追加分）
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .towa-top-tool,
    .towa-top-tools__more,
    .towa-top-journal__more,
    .towa-top-story .towa-top-btn--ghost {
        opacity: 1;
        transform: none;
        transition: none;
    }
}


/* --------------------------------------------------------------------------
   Focus styles (WCAG 2.4.7)
   -------------------------------------------------------------------------- */
.towa-top-btn--glow:focus-visible,
.towa-top-btn--ghost:focus-visible {
    outline: 2px solid var(--v5-gold);
    outline-offset: 3px;
}

.towa-top-tech__tab:focus-visible {
    outline: 2px solid var(--v5-gold);
    outline-offset: 2px;
    border-radius: 4px;
}

.towa-top-contact__item:focus-visible,
.towa-top-action:focus-visible {
    outline: 2px solid var(--v5-gold);
    outline-offset: 3px;
}

.towa-top-btn--outline:focus-visible {
    outline: 2px solid var(--v5-gold);
    outline-offset: 3px;
}