/* ===================================
   AEROPULSJAPAN — SHAREHOLDER DETAIL
   株主優待詳細ページ スタイルシート
   =================================== */

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

:root {
  --gold:       #C9A84C;
  --gold-light: #E8C97A;
  --gold-dark:  #9A7A30;
  --black:      #0A0A0A;
  --dark:       #111111;
  --dark-2:     #1A1A1A;
  --dark-3:     #242424;
  --white:      #FFFFFF;
  --gray:       #888888;
  --gray-light: #CCCCCC;
  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-sans:  'Inter', 'Noto Serif JP', sans-serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.7;
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 2px; }
::selection { background: var(--gold); color: var(--black); }

.dt-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===================================
   NAVIGATION
   =================================== */
#dtNav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
}
#dtNav.dt-scrolled {
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid rgba(201,168,76,0.2);
}
.dt-nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.dt-nav-back {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
  white-space: nowrap;
}
.dt-nav-back:hover { color: var(--gold); }
.dt-nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}
.dt-logo-main {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--gold);
}
.dt-logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.5em;
  color: var(--gray-light);
  margin-top: 2px;
}
.dt-nav-right {
  display: flex;
  gap: 28px;
  align-items: center;
}
.dt-nav-link {
  text-decoration: none;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gray-light);
  transition: var(--transition);
  position: relative;
}
.dt-nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--gold);
  transition: var(--transition);
}
.dt-nav-link:hover { color: var(--gold); }
.dt-nav-link:hover::after { width: 100%; }

.dt-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}
.dt-hamburger span {
  display: block;
  width: 24px; height: 1px;
  background: var(--gold);
  transition: var(--transition);
}
.dt-hamburger.dt-active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.dt-hamburger.dt-active span:nth-child(2) { opacity: 0; }
.dt-hamburger.dt-active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

.dt-mobile-menu {
  display: none;
  background: rgba(10,10,10,0.98);
  backdrop-filter: blur(20px);
  padding: 14px 0;
  border-top: 1px solid rgba(201,168,76,0.2);
}
.dt-mobile-menu.dt-open { display: block; }
.dt-mobile-menu ul { list-style: none; }
.dt-mobile-menu li { border-bottom: 1px solid rgba(201,168,76,0.1); }
.dt-mobile-link {
  display: block;
  padding: 13px 40px;
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--gray-light);
  transition: var(--transition);
}
.dt-mobile-link:hover { color: var(--gold); padding-left: 52px; }

/* ===================================
   HERO
   =================================== */
.dt-hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.dt-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 60%, rgba(201,168,76,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 25%, rgba(201,168,76,0.04) 0%, transparent 45%),
    linear-gradient(160deg, #0A0A0A 0%, #131310 60%, #0A0A0A 100%);
}
.dt-hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(201,168,76,0.015) 80px, rgba(201,168,76,0.015) 81px),
    repeating-linear-gradient(90deg, transparent, transparent 80px, rgba(201,168,76,0.015) 80px, rgba(201,168,76,0.015) 81px);
}
.dt-hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 24px;
  padding-top: 80px;
}
.dt-hero-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 28px;
  font-size: 0.62rem;
  letter-spacing: 0.4em;
  color: var(--gold);
}
.dt-badge-line {
  width: 50px; height: 1px;
  background: var(--gold);
  opacity: 0.5;
}
.dt-hero-title {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.dt-title-sub {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.28em;
  color: rgba(201,168,76,0.65);
  font-weight: 300;
}
.dt-title-main {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--white);
  line-height: 1.2;
}
.dt-hero-sub {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.45);
  line-height: 2;
  margin-bottom: 40px;
  letter-spacing: 0.03em;
}
.dt-hero-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.dt-hero-tab {
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
  padding: 10px 28px;
  transition: var(--transition);
}
.dt-hero-tab:hover { border-color: var(--gold); color: var(--gold); }
.dt-tab-gold { border-color: rgba(201,168,76,0.4); color: var(--gold); }
.dt-tab-vip  { border-color: rgba(255,255,255,0.35); color: var(--white); }

.dt-hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: rgba(201,168,76,0.45);
}
.dt-scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, rgba(201,168,76,0.5), transparent);
  animation: dtScroll 1.8s ease-in-out infinite;
}
@keyframes dtScroll {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ===================================
   SECTION HEADER
   =================================== */
.dt-section-header {
  text-align: center;
  margin-bottom: 56px;
}
.dt-section-label {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  margin-bottom: 14px;
  text-transform: uppercase;
}
.dt-section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 300;
  letter-spacing: 0.07em;
  color: var(--white);
  line-height: 1.3;
}

/* ===================================
   OVERVIEW TABLE
   =================================== */
.dt-overview-section {
  padding: 100px 0 80px;
  background: var(--dark-2);
}
.dt-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.dt-compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
.dt-compare-table th,
.dt-compare-table td {
  padding: 14px 20px;
  text-align: center;
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  line-height: 1.5;
}
.dt-compare-table th {
  background: rgba(201,168,76,0.06);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--white);
  border-bottom: 1px solid rgba(201,168,76,0.25);
}
.dt-compare-table th small {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.62rem;
  color: rgba(201,168,76,0.6);
  letter-spacing: 0.05em;
  margin-top: 4px;
  font-weight: 400;
}
.dt-th-item {
  text-align: left;
  width: 28%;
  color: rgba(255,255,255,0.5) !important;
  font-size: 0.7rem !important;
}
.dt-th-prm { color: var(--gold) !important; }
.dt-th-vip { color: var(--white) !important; }
.dt-compare-table td:first-child {
  text-align: left;
  color: rgba(255,255,255,0.45);
  font-size: 0.78rem;
}
.dt-compare-table td {
  color: rgba(255,255,255,0.75);
}
.dt-compare-table tr:hover td {
  background: rgba(255,255,255,0.02);
}
.dt-vip-col {
  color: var(--gold-light) !important;
  font-weight: 500;
}
.dt-center { text-align: center !important; color: var(--gold) !important; font-weight: 500; }

/* ===================================
   DIVIDER
   =================================== */
.dt-divider {
  display: flex;
  align-items: center;
  padding: 0 40px;
}
.dt-div-line {
  flex: 1; height: 1px;
  background: linear-gradient(to right, transparent, rgba(201,168,76,0.25), transparent);
}
.dt-div-diamond {
  width: 7px; height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
  margin: 0 14px;
  flex-shrink: 0;
}

/* ===================================
   PLAN SECTION
   =================================== */
.dt-plan-section {
  padding: 100px 0;
  background: var(--black);
}
.dt-plan-section-dark {
  background: var(--dark-2);
}

.dt-plan-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 60px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.dt-plan-prm { border-bottom-color: rgba(201,168,76,0.3) !important; }
.dt-plan-vip { border-bottom-color: rgba(255,255,255,0.2) !important; }

.dt-plan-badge {
  display: inline-block;
  font-size: 0.58rem;
  letter-spacing: 0.35em;
  padding: 4px 12px;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--gray);
  margin-bottom: 10px;
}
.dt-badge-gold { border-color: rgba(201,168,76,0.5); color: var(--gold); }
.dt-badge-white { border-color: rgba(255,255,255,0.4); color: var(--white); }

.dt-plan-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.3;
}
.dt-plan-cond {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: rgba(201,168,76,0.7);
  letter-spacing: 0.05em;
}
.dt-plan-cond .fa-circle {
  font-size: 0.38rem;
  color: var(--gold);
}
.dt-plan-std-note {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
  text-align: right;
  flex-shrink: 0;
}
.dt-vip-note {
  color: rgba(201,168,76,0.5) !important;
  font-style: italic;
}

/* ===================================
   BENEFIT BLOCKS
   =================================== */
.dt-plan-body {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.dt-benefit-block {
  display: flex;
  gap: 36px;
  padding: 36px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.dt-benefit-block.dt-visible {
  opacity: 1;
  transform: translateY(0);
}
.dt-benefit-block:last-child { border-bottom: none; }

.dt-benefit-num {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 300;
  color: rgba(255,255,255,0.06);
  line-height: 1;
  min-width: 52px;
  text-align: right;
  padding-top: 4px;
  letter-spacing: -0.02em;
}
.dt-num-gold { color: rgba(201,168,76,0.12); }
.dt-num-white { color: rgba(255,255,255,0.1); }

.dt-benefit-content { flex: 1; }
.dt-benefit-content h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  line-height: 1.4;
}
.dt-benefit-content h3 em {
  font-style: normal;
  color: var(--gold);
}
.dt-benefit-content > p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.9;
  margin-bottom: 16px;
}

.dt-benefit-notes {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dt-benefit-notes li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.5;
}
.dt-benefit-notes li .fa-circle {
  color: var(--gold);
  font-size: 0.38rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ===================================
   FAQ
   =================================== */
.dt-faq-section {
  padding: 100px 0;
  background: var(--dark-2);
}
.dt-faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.dt-faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.dt-faq-q {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 4px;
  text-align: left;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  line-height: 1.5;
  transition: var(--transition);
}
.dt-faq-q:hover { color: var(--gold); }
.dt-faq-icon {
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--gold);
  transition: transform 0.35s ease;
}
.dt-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.dt-faq-a p {
  padding: 0 4px 22px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.9;
}

/* ===================================
   BACK SECTION
   =================================== */
.dt-back-section {
  padding: 80px 0;
  background: var(--black);
}
.dt-back-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.dt-back-btn,
.dt-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  padding: 14px 32px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  background: none;
}
.dt-back-btn {
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
}
.dt-back-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.dt-contact-btn {
  background: var(--gold);
  color: var(--black);
  border: 1px solid var(--gold);
}
.dt-contact-btn:hover {
  background: transparent;
  color: var(--gold);
}

/* ===================================
   FOOTER
   =================================== */
.dt-footer {
  background: var(--dark);
  border-top: 1px solid rgba(201,168,76,0.2);
  padding: 44px 0;
}
.dt-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.dt-footer-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.dt-footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.dt-footer-links a {
  text-decoration: none;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--gray);
  transition: var(--transition);
}
.dt-footer-links a:hover { color: var(--gold); }
.dt-footer-copy { text-align: right; }
.dt-footer-copy p {
  font-size: 0.7rem;
  color: var(--gray);
  letter-spacing: 0.04em;
  line-height: 1.8;
}
.dt-footer-rep { color: rgba(201,168,76,0.6) !important; }

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 768px) {
  .dt-container { padding: 0 22px; }
  .dt-nav-right { display: none; }
  .dt-hamburger { display: flex; }
  .dt-nav-back span { display: none; }
  .dt-plan-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .dt-plan-std-note { text-align: left; }
  .dt-benefit-block { flex-direction: column; gap: 14px; padding: 28px 0; }
  .dt-benefit-num { font-size: 1.8rem; min-width: auto; text-align: left; }
  .dt-hero-tabs { gap: 10px; }
  .dt-hero-tab { font-size: 0.65rem; padding: 8px 20px; }
  .dt-plan-section,
  .dt-overview-section,
  .dt-faq-section { padding: 72px 0; }
  .dt-footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .dt-footer-copy { text-align: center; }
  .dt-footer-links { justify-content: center; }
}