/*
Theme Name: ZKING CORE THEME SHINAIUCHU
Theme URI: https://shinaiuchu.jp/
Author: AIMGEN DIAMOND CORE
Description: Dedicated WordPress theme for Z震愛宇宙 / SHINAI UCHU.
Version: 0.2.11
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: zking-core-theme-shinaiuchu
*/

:root {
  --shinai-deep: #020716;
  --shinai-cosmic: #081432;
  --shinai-blue: #5ccfff;
  --shinai-ice: #dff9ff;
  --shinai-gold: #d7b66a;
  --shinai-gold-soft: rgba(215, 182, 106, 0.56);
  --shinai-glass: rgba(9, 22, 48, 0.56);
  --shinai-glass-strong: rgba(10, 26, 60, 0.72);
  --shinai-line: rgba(183, 237, 255, 0.18);
  --shinai-text: #eefaff;
  --shinai-muted: rgba(238, 250, 255, 0.76);
  --shinai-faint: rgba(238, 250, 255, 0.58);
  --shinai-shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  --shinai-container: min(1420px, calc(100vw - 120px));
  --shinai-wide-container: min(1420px, calc(100vw - 120px));
  --shinai-h1: clamp(2.2rem, 3.8vw, 3.8rem);
  --shinai-hero-h1: clamp(2.4rem, 4.2vw, 4.2rem);
  --shinai-h2: clamp(1.8rem, 3vw, 3rem);
  --shinai-lead-size: clamp(1.04rem, 1.35vw, 1.22rem);
  --shinai-body-size: clamp(0.98rem, 1.08vw, 1.08rem);
  --shinai-radius: 8px;
  --shinai-section-y: clamp(72px, 9vw, 128px);
  --shinai-header-h: 74px;
  --shinai-font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Yu Gothic UI", Meiryo, sans-serif;
  --shinai-serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
}

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

html {
  background: var(--shinai-deep);
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  color: var(--shinai-text);
  background:
    linear-gradient(180deg, rgba(2, 7, 22, 0.2), rgba(2, 7, 22, 0.96) 52%),
    radial-gradient(circle at 18% 18%, rgba(92, 207, 255, 0.14), transparent 34%),
    linear-gradient(135deg, #020716 0%, #081432 52%, #030819 100%);
  font-family: var(--shinai-font);
  line-height: 1.85;
}

.shinai-lead,
.shinai-body,
.shinai-card-body,
.shinai-page-content p,
.shinai-site-link span,
.shinai-art-copy span,
.shinai-network-kicker,
.shinai-network-name,
.shinai-network-description,
.shinai-network-logo-missing,
.shinai-poem-lines span,
.shinai-poetry-note p,
.shinai-log-statement p,
.shinai-log-card p,
.shinai-log-example p,
.shinai-route-card p,
.shinai-contact-card p,
.shinai-form-placeholder p,
.shinai-footer-nav a,
.shinai-footer-title,
.shinai-footer-sub,
.shinai-footer-copy {
  overflow-wrap: break-word;
  word-break: normal;
  line-break: strict;
}

body.admin-bar .shinai-header {
  top: 32px;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
}

.screen-reader-text:focus {
  z-index: 100000;
  top: 12px;
  left: 12px;
  width: auto;
  height: auto;
  padding: 10px 14px;
  clip: auto;
  border: 1px solid var(--shinai-gold);
  background: var(--shinai-deep);
  color: var(--shinai-text);
}

.shinai-header {
  position: sticky;
  z-index: 50;
  top: 0;
  min-height: var(--shinai-header-h);
  border-bottom: 1px solid rgba(215, 182, 106, 0.16);
  background: rgba(2, 7, 22, 0.74);
  backdrop-filter: blur(18px);
}

.shinai-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: var(--shinai-container);
  min-height: var(--shinai-header-h);
  margin: 0 auto;
}

.shinai-brand {
  display: inline-flex;
  flex-direction: column;
  flex: 0 0 auto;
  gap: 1px;
  min-width: 0;
  color: var(--shinai-text);
}

.shinai-brand-main {
  font-family: var(--shinai-serif);
  font-size: 1.02rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.shinai-brand-sub {
  color: var(--shinai-gold);
  font-size: 0.69rem;
  line-height: 1.2;
  letter-spacing: 0.16em;
}

.shinai-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 0;
}

.shinai-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.shinai-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: rgba(238, 250, 255, 0.82);
  font-size: 0.88rem;
  line-height: 1.3;
  white-space: nowrap;
}

.shinai-nav a::after {
  position: absolute;
  right: 0;
  bottom: 8px;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--shinai-gold), transparent);
  content: "";
  opacity: 0;
  transform: scaleX(0.68);
  transition: opacity 180ms ease, transform 180ms ease;
}

.shinai-nav a:hover::after,
.shinai-nav a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.shinai-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(215, 182, 106, 0.28);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--shinai-text);
  cursor: pointer;
}

.shinai-menu-lines,
.shinai-menu-lines::before,
.shinai-menu-lines::after {
  display: block;
  width: 18px;
  height: 1px;
  margin: 0 auto;
  background: currentColor;
  content: "";
  transition: transform 180ms ease, opacity 180ms ease;
}

.shinai-menu-lines::before {
  transform: translateY(-7px);
}

.shinai-menu-lines::after {
  transform: translateY(6px);
}

.shinai-menu-toggle[aria-expanded="true"] .shinai-menu-lines {
  transform: rotate(45deg);
}

.shinai-menu-toggle[aria-expanded="true"] .shinai-menu-lines::before {
  opacity: 0;
}

.shinai-menu-toggle[aria-expanded="true"] .shinai-menu-lines::after {
  transform: translateY(-1px) rotate(-90deg);
}

.shinai-main {
  min-height: 70vh;
}

.shinai-section {
  position: relative;
  padding: var(--shinai-section-y) 0;
  border-top: 1px solid rgba(183, 237, 255, 0.08);
}

.shinai-section.is-compact {
  padding: clamp(54px, 7vw, 88px) 0;
}

.shinai-container {
  position: relative;
  z-index: 2;
  width: var(--shinai-container);
  margin: 0 auto;
}

.shinai-hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: calc(86svh - var(--shinai-header-h));
  padding: clamp(76px, 8vw, 128px) 0 clamp(64px, 7vw, 100px);
  overflow: hidden;
  border-top: 0;
  isolation: isolate;
}

.shinai-hero::before {
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(90deg, rgba(2, 7, 22, 0.94) 0%, rgba(2, 7, 22, 0.76) 36%, rgba(2, 7, 22, 0.22) 100%),
    linear-gradient(180deg, rgba(2, 7, 22, 0.16) 0%, rgba(2, 7, 22, 0.88) 100%),
    var(--shinai-hero-image) center right / cover no-repeat;
  content: "";
}

.shinai-hero::after {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 36%;
  background: linear-gradient(180deg, transparent, rgba(2, 7, 22, 0.98));
  content: "";
}

.shinai-hero-light {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(115deg, transparent 0 24%, rgba(215, 182, 106, 0.13) 25%, transparent 26% 100%),
    repeating-linear-gradient(90deg, rgba(223, 249, 255, 0.03) 0 1px, transparent 1px 140px);
  opacity: 0.72;
  pointer-events: none;
}

.shinai-hero-content {
  width: min(1320px, 100%);
}

.shinai-hero-logo {
  width: min(320px, 72vw);
  margin: 0 0 clamp(24px, 4vw, 40px);
}

.shinai-logo-frame {
  position: relative;
  display: grid;
  place-items: center;
  padding: clamp(10px, 1.8vw, 16px);
  border: 1px solid rgba(215, 182, 106, 0.3);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(2, 7, 22, 0.5);
  box-shadow:
    0 0 38px rgba(92, 207, 255, 0.16),
    0 0 72px rgba(215, 182, 106, 0.08),
    var(--shinai-shadow);
}

.shinai-symbol-logo {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.shinai-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  color: var(--shinai-gold);
  font-size: 0.78rem;
  line-height: 1.4;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.shinai-kicker::before {
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, var(--shinai-gold), transparent);
  content: "";
}

.shinai-title {
  margin: 0;
  font-family: var(--shinai-serif);
  font-size: var(--shinai-hero-h1);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: 0;
}

.shinai-title-en {
  display: block;
  margin-top: 10px;
  color: rgba(223, 249, 255, 0.74);
  font-family: var(--shinai-font);
  font-size: clamp(0.86rem, 1.4vw, 1.14rem);
  letter-spacing: 0.22em;
}

.shinai-subtitle {
  margin: clamp(24px, 4vw, 42px) 0 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.38rem, 3.4vw, 2.72rem);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0;
}

.shinai-lead {
  width: 100%;
  max-width: none;
  margin: 28px 0 0;
  color: var(--shinai-muted);
  font-size: var(--shinai-lead-size);
  line-height: 2.08;
}

.shinai-body {
  width: 100%;
  max-width: none;
  margin: 22px 0 0;
  color: var(--shinai-muted);
  font-size: var(--shinai-body-size);
  line-height: 2.02;
}

.shinai-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(30px, 4vw, 46px);
}

.shinai-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid rgba(215, 182, 106, 0.52);
  border-radius: 999px;
  color: var(--shinai-text);
  font-size: 0.92rem;
  line-height: 1.35;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(223, 249, 255, 0.08);
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.shinai-button:hover,
.shinai-button:focus-visible {
  border-color: rgba(223, 249, 255, 0.72);
  background: rgba(92, 207, 255, 0.11);
  transform: translateY(-1px);
}

.shinai-section-head {
  display: grid;
  gap: 16px;
  max-width: min(1320px, 100%);
  margin-bottom: clamp(30px, 5vw, 58px);
}

.shinai-section-title {
  margin: 0;
  font-family: var(--shinai-serif);
  font-size: var(--shinai-h2);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.shinai-section-title span {
  display: block;
  margin-top: 8px;
  color: var(--shinai-gold);
  font-family: var(--shinai-font);
  font-size: clamp(0.76rem, 1.2vw, 0.9rem);
  line-height: 1.4;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.shinai-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.shinai-card,
.shinai-glass-card {
  position: relative;
  min-width: 0;
  border: 1px solid rgba(215, 182, 106, 0.22);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.024)),
    var(--shinai-glass);
  box-shadow: var(--shinai-shadow);
  overflow: hidden;
}

.shinai-card::before,
.shinai-glass-card::before {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    linear-gradient(120deg, rgba(215, 182, 106, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(92, 207, 255, 0.1), transparent 58%);
  content: "";
  opacity: 0.82;
  pointer-events: none;
}

.shinai-card-inner {
  position: relative;
  z-index: 1;
  padding: clamp(22px, 3vw, 34px);
}

.shinai-card-title {
  margin: 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.24rem, 2vw, 1.7rem);
  font-weight: 500;
  line-height: 1.45;
}

.shinai-card-body {
  margin: 14px 0 0;
  color: var(--shinai-muted);
  font-size: 0.95rem;
  line-height: 1.92;
}

.shinai-route-section {
  background:
    radial-gradient(circle at 78% 8%, rgba(92, 207, 255, 0.1), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent 46%);
}

.shinai-route-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.shinai-route-card {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 100%;
  padding: clamp(20px, 2.7vw, 30px);
  border: 1px solid rgba(183, 237, 255, 0.16);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.07), rgba(215, 182, 106, 0.046)),
    rgba(255, 255, 255, 0.03);
  box-shadow: var(--shinai-shadow);
}

.shinai-route-kicker {
  margin: 0 0 12px;
  color: var(--shinai-gold);
  font-size: 0.72rem;
  line-height: 1.4;
  letter-spacing: 0.14em;
}

.shinai-route-card h3 {
  margin: 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.08rem, 1.55vw, 1.34rem);
  font-weight: 500;
  line-height: 1.45;
}

.shinai-route-card p:not(.shinai-route-kicker) {
  margin: 12px 0 0;
  color: var(--shinai-muted);
  font-size: 0.92rem;
  line-height: 1.82;
}

.shinai-route-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 38px;
  margin-top: 22px;
  padding: 8px 14px;
  border: 1px solid rgba(215, 182, 106, 0.4);
  border-radius: 999px;
  color: var(--shinai-text);
  font-size: 0.76rem;
  line-height: 1.3;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.035);
}

.shinai-route-card a:hover,
.shinai-route-card a:focus-visible {
  border-color: rgba(223, 249, 255, 0.72);
  background: rgba(92, 207, 255, 0.11);
}

.shinai-step-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.shinai-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--shinai-line);
  border-radius: var(--shinai-radius);
  background: rgba(255, 255, 255, 0.035);
}

.shinai-step p {
  margin: 0;
}

.shinai-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  min-width: 34px;
  height: 34px;
  padding: 0;
  padding-top: 2px;
  box-sizing: border-box;
  border: 1px solid rgba(215, 182, 106, 0.44);
  border-radius: 50%;
  color: var(--shinai-gold);
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-align: center;
}

.shinai-step strong {
  display: block;
  color: var(--shinai-ice);
  font-size: 1rem;
  line-height: 1.55;
}

.shinai-step p span {
  display: block;
  margin-top: 4px;
  color: var(--shinai-faint);
  font-size: 0.9rem;
  line-height: 1.7;
}

.shinai-mandala-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
}

.shinai-art-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid rgba(215, 182, 106, 0.2);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(180deg, rgba(2, 7, 22, 0.1), rgba(2, 7, 22, 0.78)),
    var(--tile-image, linear-gradient(145deg, rgba(92, 207, 255, 0.2), rgba(215, 182, 106, 0.08))),
    rgba(255, 255, 255, 0.04);
  background-position: center;
  background-size: cover;
  box-shadow: var(--shinai-shadow);
}

.shinai-art-tile:first-child {
  grid-row: span 2;
  min-height: 536px;
}

.shinai-art-tile::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 0 42%, rgba(2, 7, 22, 0.76) 100%),
    linear-gradient(90deg, rgba(215, 182, 106, 0.12), transparent 42%);
  content: "";
}

.shinai-art-copy {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding: 20px;
}

.shinai-art-copy strong {
  display: block;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: 1.18rem;
  line-height: 1.45;
}

.shinai-art-copy span {
  display: block;
  margin-top: 6px;
  color: var(--shinai-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.shinai-art-tile.is-empty {
  justify-content: center;
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.12), rgba(215, 182, 106, 0.06)),
    repeating-linear-gradient(135deg, rgba(223, 249, 255, 0.055) 0 1px, transparent 1px 18px),
    rgba(255, 255, 255, 0.032);
}

.shinai-art-tile.is-empty .shinai-art-copy {
  margin: auto 0;
}

.shinai-art-tile.is-empty .shinai-art-copy::before {
  display: block;
  width: 42px;
  height: 1px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, var(--shinai-gold), transparent);
  content: "";
}

.shinai-art-tile.has-symbol {
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.08), rgba(215, 182, 106, 0.06)),
    rgba(2, 7, 22, 0.72);
}

.shinai-art-symbol {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  min-height: clamp(300px, 28vw, 420px);
  margin: 14px;
  padding: 18px;
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid rgba(215, 182, 106, 0.2);
  border-radius: var(--shinai-radius);
  background:
    radial-gradient(circle at 50% 44%, rgba(92, 207, 255, 0.12), transparent 52%),
    rgba(0, 0, 0, 0.58);
  min-width: 0;
}

.shinai-art-symbol .shinai-symbol-logo {
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: drop-shadow(0 0 24px rgba(92, 207, 255, 0.18));
}

.shinai-gallery-page {
  gap: clamp(42px, 6vw, 76px);
}

.shinai-featured-mandala,
.shinai-gallery-section {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.shinai-featured-card,
.shinai-gallery-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(215, 182, 106, 0.22);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.078), rgba(255, 255, 255, 0.022)),
    rgba(3, 10, 28, 0.78);
  box-shadow: var(--shinai-shadow);
}

.shinai-featured-card::before,
.shinai-gallery-card::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(215, 182, 106, 0.16), transparent 34%),
    radial-gradient(circle at 50% 18%, rgba(92, 207, 255, 0.1), transparent 48%);
  content: "";
  pointer-events: none;
}

.shinai-featured-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: stretch;
  padding: clamp(14px, 2vw, 18px);
}

.shinai-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.shinai-gallery-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.shinai-featured-image-frame,
.shinai-gallery-image-frame {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(215, 182, 106, 0.22);
  border-radius: var(--shinai-radius);
  background:
    radial-gradient(circle at 50% 44%, rgba(92, 207, 255, 0.12), transparent 54%),
    #000;
}

.shinai-featured-image-frame {
  width: 100%;
  height: clamp(320px, 34vw, 520px);
  min-height: 0;
  padding: clamp(18px, 2.6vw, 34px);
}

.shinai-gallery-image-frame {
  aspect-ratio: 4 / 3;
  min-height: clamp(250px, 21vw, 330px);
  margin: 14px 14px 0;
  padding: clamp(14px, 1.8vw, 22px);
}

.shinai-featured-image,
.shinai-gallery-image {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: drop-shadow(0 0 26px rgba(92, 207, 255, 0.18));
}

.shinai-featured-content,
.shinai-gallery-content {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.shinai-featured-content {
  padding: clamp(12px, 2vw, 24px);
}

.shinai-gallery-content {
  display: grid;
  gap: 10px;
  flex: 1;
  padding: 20px;
}

.shinai-featured-content h3,
.shinai-gallery-content h3 {
  margin: 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.24rem, 2vw, 1.72rem);
  font-weight: 500;
  line-height: 1.42;
}

.shinai-featured-content p,
.shinai-gallery-content p {
  margin: 12px 0 0;
  color: var(--shinai-muted);
  font-size: 0.96rem;
  line-height: 1.92;
}

.shinai-gallery-placeholder {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  width: 100%;
  min-height: 100%;
  padding: clamp(22px, 3vw, 34px);
  color: rgba(238, 250, 255, 0.78);
  text-align: center;
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.08), rgba(215, 182, 106, 0.052)),
    repeating-linear-gradient(135deg, rgba(223, 249, 255, 0.05) 0 1px, transparent 1px 20px),
    rgba(2, 7, 22, 0.78);
}

.shinai-gallery-placeholder::before,
.shinai-gallery-placeholder::after {
  display: block;
  width: 46px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--shinai-gold), transparent);
  content: "";
}

.shinai-gallery-placeholder strong {
  color: var(--shinai-gold);
  font-size: 0.92rem;
  line-height: 1.45;
  letter-spacing: 0.06em;
}

.shinai-gallery-placeholder p {
  max-width: 22em;
  margin: 0;
  color: rgba(238, 250, 255, 0.68);
  font-size: 0.84rem;
  line-height: 1.74;
}

.shinai-network-section {
  background:
    radial-gradient(circle at 12% 0%, rgba(92, 207, 255, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent 42%);
}

.shinai-network-section .shinai-container {
  width: var(--shinai-wide-container);
}

.shinai-network-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.shinai-network-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100%;
  overflow: hidden;
  border: 1px solid rgba(215, 182, 106, 0.22);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.078), rgba(255, 255, 255, 0.024)),
    rgba(3, 10, 28, 0.78);
  box-shadow: var(--shinai-shadow);
}

.shinai-network-card::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(215, 182, 106, 0.16), transparent 34%),
    radial-gradient(circle at 50% 18%, rgba(92, 207, 255, 0.12), transparent 46%);
  content: "";
  pointer-events: none;
}

.shinai-network-logo-frame {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: clamp(232px, 19vw, 270px);
  margin: 14px 14px 0;
  padding: clamp(14px, 1.5vw, 18px);
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid rgba(215, 182, 106, 0.2);
  border-radius: var(--shinai-radius);
  background:
    radial-gradient(circle at 50% 46%, rgba(92, 207, 255, 0.12), transparent 48%),
    rgba(0, 0, 0, 0.58);
}

.shinai-network-logo {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: drop-shadow(0 0 20px rgba(215, 182, 106, 0.16));
}

.shinai-network-logo-missing {
  display: grid;
  gap: 8px;
  place-items: center;
  width: 100%;
  min-height: 100%;
  padding: 18px;
  color: rgba(238, 250, 255, 0.72);
  font-size: 0.82rem;
  line-height: 1.55;
  text-align: center;
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.08), rgba(215, 182, 106, 0.04)),
    repeating-linear-gradient(135deg, rgba(223, 249, 255, 0.055) 0 1px, transparent 1px 18px);
}

.shinai-network-logo-missing strong {
  color: var(--shinai-gold);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.shinai-network-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  padding: 20px;
}

.shinai-network-code {
  margin: 0 0 8px;
  color: rgba(215, 182, 106, 0.88);
  font-size: 0.72rem;
  line-height: 1.3;
  letter-spacing: 0.13em;
}

.shinai-network-kicker {
  margin: 0;
  color: rgba(223, 249, 255, 0.7);
  font-size: 0.84rem;
  line-height: 1.58;
}

.shinai-network-name {
  margin: 12px 0 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.2rem, 1.6vw, 1.55rem);
  font-weight: 500;
  line-height: 1.42;
}

.shinai-network-description {
  flex: 1;
  margin: 12px 0 18px;
  color: var(--shinai-muted);
  font-size: 0.95rem;
  line-height: 1.78;
}

.shinai-network-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid rgba(215, 182, 106, 0.44);
  border-radius: 999px;
  color: var(--shinai-text);
  font-size: 0.78rem;
  line-height: 1.3;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.04);
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.shinai-network-open:hover,
.shinai-network-open:focus-visible {
  border-color: rgba(223, 249, 255, 0.74);
  background: rgba(92, 207, 255, 0.12);
  transform: translateY(-1px);
}

.shinai-page {
  padding: clamp(72px, 9vw, 118px) 0;
}

.shinai-page-header {
  padding: clamp(78px, 9vw, 128px) 0 clamp(42px, 6vw, 72px);
  border-bottom: 1px solid rgba(183, 237, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(2, 7, 22, 0.34), rgba(2, 7, 22, 0.94)),
    radial-gradient(circle at 76% 16%, rgba(92, 207, 255, 0.18), transparent 34%);
}

.shinai-page-title {
  max-width: min(1240px, 100%);
  margin: 0;
  font-family: var(--shinai-serif);
  font-size: var(--shinai-h1);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: 0;
}

.shinai-page-content > *:first-child {
  margin-top: 0;
}

.shinai-page-content h2 {
  margin: 56px 0 18px;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.72rem, 2.8vw, 3rem);
  font-weight: 500;
  line-height: 1.34;
}

.shinai-page-content .shinai-section-title {
  margin: 0;
  font-size: var(--shinai-h2);
  line-height: 1.18;
}

.shinai-page-content p {
  width: 100%;
  max-width: none;
  color: var(--shinai-muted);
  font-size: var(--shinai-body-size);
  line-height: 2.05;
}

.shinai-page-content ul {
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: none;
  margin: 24px 0;
  padding: 0;
  list-style: none;
}

.shinai-page-content li {
  position: relative;
  padding-left: 20px;
  color: var(--shinai-muted);
  line-height: 1.9;
}

.shinai-page-content li::before {
  position: absolute;
  top: 0.85em;
  left: 0;
  width: 6px;
  height: 6px;
  border: 1px solid var(--shinai-gold);
  border-radius: 50%;
  content: "";
}

.shinai-story {
  display: grid;
  gap: clamp(46px, 6vw, 78px);
  overflow-x: clip;
}

.shinai-story-intro {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(215, 182, 106, 0.2);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
    rgba(3, 11, 30, 0.58);
  box-shadow: var(--shinai-shadow);
}

.shinai-story-lead {
  margin: 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.12rem, 1.7vw, 1.46rem);
  line-height: 1.9;
}

.shinai-story-intro p:not(.shinai-story-lead) {
  margin: 0;
}

.shinai-story-grid,
.shinai-life-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: clamp(24px, 4vw, 42px);
}

.shinai-story-card.is-wide {
  grid-column: 1 / -1;
}

.shinai-story-card.shinai-glass-card::before {
  display: none;
}

.shinai-story-card h3,
.shinai-flow-card h3,
.shinai-life-detail h3 {
  margin: 8px 0 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.16rem, 1.8vw, 1.55rem);
  font-weight: 500;
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.shinai-story-card p,
.shinai-flow-card p,
.shinai-life-detail p {
  margin: 12px 0 0;
  color: var(--shinai-muted);
  font-size: 0.95rem;
  line-height: 1.9;
}

.shinai-story-number,
.shinai-life-detail span,
.shinai-flow-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(215, 182, 106, 0.42);
  border-radius: 50%;
  color: var(--shinai-gold);
  font-size: 0.78rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  margin: 0;
}

.shinai-story-number {
  width: fit-content;
  max-width: fit-content;
  min-width: 2.2rem;
  height: 1.6rem;
  padding: 0 0.62rem;
  border-color: rgba(215, 182, 106, 0.38);
  border-radius: 999px;
  background: rgba(2, 7, 22, 0.32);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.shinai-page-content .shinai-story-number {
  width: fit-content;
  max-width: fit-content;
}

.shinai-story-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(24px, 4vw, 42px);
}

.shinai-flow-card,
.shinai-life-detail,
.shinai-story-band {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(183, 237, 255, 0.16);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.075), rgba(215, 182, 106, 0.045)),
    rgba(255, 255, 255, 0.032);
}

.shinai-story-band h2 {
  margin-top: 0;
}

.shinai-story-band p:last-child,
.shinai-story-note {
  margin-bottom: 0;
}

.shinai-story-note {
  margin-top: 24px;
  padding: 18px 20px;
  border-left: 1px solid var(--shinai-gold);
  color: var(--shinai-faint);
  background: rgba(255, 255, 255, 0.03);
}

.shinai-poetry-stage,
.shinai-earth-section {
  display: grid;
  gap: 18px;
}

.shinai-poetry-note,
.shinai-log-statement {
  max-width: min(960px, 100%);
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid rgba(215, 182, 106, 0.18);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.065), rgba(215, 182, 106, 0.035)),
    rgba(255, 255, 255, 0.026);
}

.shinai-poetry-page > .shinai-story-intro,
.shinai-earth-log-page > .shinai-story-intro,
.shinai-poetry-page .shinai-poetry-note,
.shinai-earth-log-page .shinai-log-statement {
  width: 100%;
  max-width: none;
  justify-self: stretch;
}

.shinai-poetry-note p,
.shinai-log-statement p {
  margin: 0;
  color: var(--shinai-muted);
  line-height: 2;
}

.shinai-poem-grid,
.shinai-log-example-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: clamp(24px, 4vw, 42px);
}

.shinai-poem-card,
.shinai-log-card,
.shinai-log-example {
  position: relative;
  min-width: 0;
  border: 1px solid rgba(183, 237, 255, 0.16);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.07), rgba(215, 182, 106, 0.048)),
    rgba(255, 255, 255, 0.03);
}

.shinai-poem-card {
  display: grid;
  align-content: center;
  min-height: clamp(300px, 27vw, 390px);
  padding: clamp(28px, 4vw, 46px) clamp(20px, 3vw, 30px);
  text-align: center;
  box-shadow:
    0 0 0 1px rgba(223, 249, 255, 0.035) inset,
    var(--shinai-shadow);
}

.shinai-poem-card h3,
.shinai-log-card h3,
.shinai-log-example h3 {
  margin: 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.12rem, 1.7vw, 1.46rem);
  font-weight: 500;
  line-height: 1.45;
}

.shinai-poem-lines {
  display: grid;
  gap: 8px;
  margin-top: 24px;
  color: rgba(238, 250, 255, 0.9);
  font-family: var(--shinai-serif);
  font-size: clamp(1.02rem, 1.25vw, 1.14rem);
  line-height: 1.95;
}

.shinai-poem-lines span {
  display: block;
}

.shinai-sound-preview {
  display: grid;
  gap: 16px;
}

.shinai-prep-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid rgba(215, 182, 106, 0.38);
  border-radius: 999px;
  color: var(--shinai-gold);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  background: rgba(2, 7, 22, 0.34);
}

.shinai-log-field-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(24px, 4vw, 42px);
}

.shinai-log-card {
  min-height: 210px;
  padding: 22px;
}

.shinai-log-card p,
.shinai-log-example p {
  margin: 12px 0 0;
  color: var(--shinai-muted);
  font-size: 0.94rem;
  line-height: 1.9;
}

.shinai-log-example {
  padding: clamp(22px, 3vw, 32px);
}

.shinai-log-example span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  height: 1.6rem;
  margin: 0 0 14px;
  padding: 0 0.62rem;
  border: 1px solid rgba(215, 182, 106, 0.38);
  border-radius: 999px;
  color: var(--shinai-gold);
  font-size: 0.72rem;
  line-height: 1;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  background: rgba(2, 7, 22, 0.32);
}

.shinai-contact-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(24px, 4vw, 42px);
}

.shinai-contact-card {
  min-width: 0;
  min-height: 210px;
  padding: 22px;
  border: 1px solid rgba(183, 237, 255, 0.16);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(92, 207, 255, 0.07), rgba(215, 182, 106, 0.046)),
    rgba(255, 255, 255, 0.03);
}

.shinai-contact-card h3 {
  margin: 0;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.08rem, 1.5vw, 1.34rem);
  font-weight: 500;
  line-height: 1.45;
}

.shinai-contact-card p {
  margin: 12px 0 0;
  color: var(--shinai-muted);
  font-size: 0.94rem;
  line-height: 1.9;
}

.shinai-contact-form-panel {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.shinai-contact-form,
.shinai-form-placeholder {
  min-width: 0;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(215, 182, 106, 0.2);
  border-radius: var(--shinai-radius);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
    rgba(3, 11, 30, 0.58);
  box-shadow: var(--shinai-shadow);
}

.shinai-form-placeholder-title {
  margin: 0 0 8px;
  color: var(--shinai-ice);
  font-family: var(--shinai-serif);
  font-size: clamp(1.26rem, 2vw, 1.72rem);
  line-height: 1.45;
}

.shinai-form-placeholder p:last-child {
  margin-bottom: 0;
}

.shinai-contact-form form {
  display: grid;
  gap: 16px;
}

.shinai-contact-form label {
  display: grid;
  gap: 8px;
  color: var(--shinai-muted);
}

.shinai-contact-form input[type="text"],
.shinai-contact-form input[type="email"],
.shinai-contact-form input[type="tel"],
.shinai-contact-form input[type="url"],
.shinai-contact-form select,
.shinai-contact-form textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(183, 237, 255, 0.2);
  border-radius: 6px;
  color: var(--shinai-text);
  background: rgba(2, 7, 22, 0.48);
}

.shinai-contact-form select {
  color: var(--shinai-text);
}

.shinai-contact-form textarea {
  min-height: 160px;
}

.shinai-contact-form input[type="submit"],
.shinai-contact-form button[type="submit"] {
  width: fit-content;
  min-height: 44px;
  padding: 9px 18px;
  border: 1px solid rgba(215, 182, 106, 0.48);
  border-radius: 999px;
  color: var(--shinai-text);
  background: rgba(255, 255, 255, 0.045);
}

.shinai-contact-form .wpcf7,
.shinai-contact-form .wpcf7-form-control-wrap {
  width: 100%;
}

.shinai-contact-form .wpcf7-form-control-wrap {
  display: block;
}

.shinai-contact-form .wpcf7-not-valid-tip {
  margin-top: 6px;
  color: var(--shinai-gold);
  font-size: 0.82rem;
}

.shinai-contact-form .wpcf7-response-output {
  margin: 8px 0 0;
  padding: 14px 16px;
  border-color: rgba(215, 182, 106, 0.34);
  color: var(--shinai-muted);
  line-height: 1.7;
}

.shinai-contact-form .wpcf7-spinner {
  margin: 0 0 0 10px;
}

.shinai-recaptcha-notice {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0.65rem 0 0;
  color: rgba(230, 238, 255, 0.58);
  font-size: 8px !important;
  line-height: 1.25 !important;
  letter-spacing: 0 !important;
  overflow: visible;
  text-align: center;
  white-space: nowrap !important;
}

.shinai-recaptcha-notice a {
  color: rgba(216, 195, 122, 0.78);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.shinai-recaptcha-notice a:hover,
.shinai-recaptcha-notice a:focus-visible {
  color: rgba(255, 231, 153, 0.95);
}

.grecaptcha-badge {
  visibility: hidden;
}

.shinai-footer {
  padding: clamp(44px, 6vw, 72px) 0;
  border-top: 1px solid rgba(215, 182, 106, 0.16);
  background:
    linear-gradient(180deg, rgba(2, 7, 22, 0.92), rgba(2, 7, 22, 0.98)),
    radial-gradient(circle at 50% 0%, rgba(92, 207, 255, 0.08), transparent 38%);
}

.shinai-footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: 22px;
  width: var(--shinai-container);
  margin: 0 auto;
  text-align: center;
}

.shinai-footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: var(--shinai-text);
}

.shinai-footer-logo-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(64px, 6vw, 88px);
  aspect-ratio: 1 / 1;
  padding: 7px;
  overflow: hidden;
  border: 1px solid rgba(215, 182, 106, 0.24);
  border-radius: var(--shinai-radius);
  background:
    radial-gradient(circle at 50% 42%, rgba(92, 207, 255, 0.12), transparent 60%),
    rgba(0, 0, 0, 0.42);
}

.shinai-footer-logo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: drop-shadow(0 0 14px rgba(92, 207, 255, 0.2));
}

.shinai-footer-brand-text {
  display: grid;
  gap: 5px;
  min-width: 0;
  text-align: left;
}

.shinai-footer-title {
  margin: 0;
  font-family: var(--shinai-serif);
  font-size: 1.36rem;
  line-height: 1.4;
}

.shinai-footer-sub {
  margin: 0;
  color: var(--shinai-gold);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
}

.shinai-footer-copy {
  margin: 0;
  color: var(--shinai-faint);
  font-size: 0.8rem;
  line-height: 1.6;
}

.shinai-footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.shinai-footer-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid rgba(183, 237, 255, 0.12);
  border-radius: 999px;
  color: rgba(238, 250, 255, 0.76);
  font-size: 0.76rem;
  line-height: 1.25;
  background: rgba(255, 255, 255, 0.026);
}

.shinai-footer-nav a:hover,
.shinai-footer-nav a:focus-visible {
  border-color: rgba(215, 182, 106, 0.38);
  color: var(--shinai-ice);
  background: rgba(92, 207, 255, 0.08);
}

.shinai-back-to-top {
  position: fixed;
  z-index: 60;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(215, 182, 106, 0.5);
  border-radius: 50%;
  color: var(--shinai-ice);
  font-size: 1.15rem;
  line-height: 1;
  background:
    radial-gradient(circle at 50% 34%, rgba(92, 207, 255, 0.18), transparent 62%),
    rgba(2, 7, 22, 0.88);
  box-shadow:
    0 0 22px rgba(92, 207, 255, 0.16),
    0 12px 34px rgba(0, 0, 0, 0.34);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.shinai-back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.shinai-back-to-top:hover,
.shinai-back-to-top:focus-visible {
  border-color: rgba(223, 249, 255, 0.72);
  background:
    radial-gradient(circle at 50% 34%, rgba(92, 207, 255, 0.26), transparent 62%),
    rgba(4, 14, 36, 0.94);
}

@media (max-width: 1180px) {
  .shinai-network-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shinai-gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  :root {
    --shinai-container: min(calc(100vw - 32px), 760px);
    --shinai-wide-container: min(calc(100vw - 32px), 760px);
    --shinai-h1: clamp(2.2rem, 6vw, 3.6rem);
    --shinai-hero-h1: clamp(2.4rem, 7vw, 4rem);
    --shinai-h2: clamp(1.8rem, 4.8vw, 2.8rem);
  }

  body.admin-bar .shinai-header {
    top: 46px;
  }

  .shinai-menu-toggle {
    display: inline-grid;
    place-items: center;
    flex: 0 0 auto;
  }

  .shinai-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 16px;
    left: 16px;
    display: none;
    max-height: calc(100svh - var(--shinai-header-h) - 24px);
    padding: 10px;
    overflow-y: auto;
    border: 1px solid rgba(215, 182, 106, 0.24);
    border-radius: var(--shinai-radius);
    background:
      linear-gradient(180deg, rgba(6, 14, 33, 0.98), rgba(2, 7, 22, 0.98)),
      radial-gradient(circle at 18% 0%, rgba(92, 207, 255, 0.16), transparent 38%);
    box-shadow:
      0 0 0 1px rgba(223, 249, 255, 0.06) inset,
      var(--shinai-shadow);
    backdrop-filter: blur(18px);
  }

  .shinai-nav.is-open {
    display: block;
  }

  .shinai-nav ul {
    display: grid;
    gap: 6px;
  }

  .shinai-nav li {
    min-width: 0;
  }

  .shinai-nav a {
    width: 100%;
    min-height: 54px;
    justify-content: flex-start;
    padding: 13px 14px;
    border: 1px solid rgba(183, 237, 255, 0.1);
    border-radius: 6px;
    color: rgba(238, 250, 255, 0.88);
    background: rgba(255, 255, 255, 0.035);
    line-height: 1.45;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .shinai-nav a::after {
    display: none;
  }

  .shinai-nav a:hover,
  .shinai-nav a:focus-visible,
  .shinai-nav .current-menu-item > a {
    border-color: rgba(215, 182, 106, 0.42);
    color: var(--shinai-ice);
    background: rgba(92, 207, 255, 0.1);
  }

  .shinai-grid,
  .shinai-step-list,
  .shinai-network-grid,
  .shinai-route-grid {
    grid-template-columns: 1fr 1fr;
  }

  .shinai-story-flow,
  .shinai-poem-grid,
  .shinai-log-example-grid {
    grid-template-columns: 1fr;
  }

  .shinai-log-field-grid,
  .shinai-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shinai-mandala-grid {
    grid-template-columns: 1fr 1fr;
  }

  .shinai-featured-card {
    grid-template-columns: 1fr;
  }

  .shinai-art-tile:first-child {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: auto;
  }
}

@media (max-width: 620px) {
  :root {
    --shinai-container: min(calc(100vw - 28px), 430px);
    --shinai-wide-container: min(calc(100vw - 28px), 430px);
    --shinai-h1: clamp(2.05rem, 9.2vw, 2.9rem);
    --shinai-hero-h1: clamp(2.2rem, 10.5vw, 3.2rem);
    --shinai-h2: clamp(1.55rem, 7.4vw, 2.25rem);
    --shinai-lead-size: 0.98rem;
    --shinai-body-size: 0.96rem;
    --shinai-section-y: 66px;
    --shinai-header-h: 66px;
  }

  body.admin-bar .shinai-header {
    top: 0;
  }

  .shinai-header-inner {
    gap: 12px;
  }

  .shinai-brand-main {
    font-size: 0.94rem;
  }

  .shinai-brand-sub {
    max-width: 190px;
    font-size: 0.62rem;
    letter-spacing: 0.12em;
  }

  .shinai-hero {
    min-height: calc(84svh - var(--shinai-header-h));
    padding: 62px 0 56px;
  }

  .shinai-hero-logo {
    width: min(238px, 72vw);
    margin-bottom: 22px;
  }

  .shinai-hero::before {
    background:
      linear-gradient(180deg, rgba(2, 7, 22, 0.66) 0%, rgba(2, 7, 22, 0.72) 42%, rgba(2, 7, 22, 0.96) 100%),
      var(--shinai-hero-image) 64% center / cover no-repeat;
  }

  .shinai-kicker {
    gap: 9px;
    margin-bottom: 16px;
    font-size: 0.68rem;
    letter-spacing: 0.13em;
  }

  .shinai-kicker::before {
    width: 28px;
  }

  .shinai-title-en {
    font-size: 0.76rem;
    letter-spacing: 0.15em;
  }

  .shinai-subtitle {
    font-size: clamp(1.34rem, 7.2vw, 1.9rem);
    line-height: 1.58;
  }

  .shinai-lead,
  .shinai-body,
  .shinai-page-content p {
    line-height: 1.96;
  }

  .shinai-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .shinai-button {
    width: 100%;
  }

  .shinai-grid,
  .shinai-step-list,
  .shinai-mandala-grid,
  .shinai-gallery-grid,
  .shinai-network-grid,
  .shinai-route-grid,
  .shinai-story-grid,
  .shinai-life-detail-grid,
  .shinai-log-field-grid,
  .shinai-contact-grid {
    grid-template-columns: 1fr;
  }

  .shinai-story {
    gap: 42px;
  }

  .shinai-story-intro,
  .shinai-story-band,
  .shinai-flow-card,
  .shinai-life-detail,
  .shinai-poetry-note,
  .shinai-log-statement,
  .shinai-log-card,
  .shinai-log-example,
  .shinai-route-card,
  .shinai-contact-card,
  .shinai-contact-form,
  .shinai-form-placeholder {
    padding: 20px;
  }

  .shinai-poem-card {
    min-height: 284px;
    padding: 26px 20px;
  }

  .shinai-prep-label {
    width: 100%;
  }

  .shinai-contact-form input[type="submit"],
  .shinai-contact-form button[type="submit"] {
    width: 100%;
  }

  .shinai-recaptcha-notice {
    font-size: 6px !important;
    letter-spacing: 0 !important;
  }

  .shinai-art-tile,
  .shinai-art-tile:first-child {
    min-height: auto;
  }

  .shinai-art-symbol {
    aspect-ratio: 1 / 1;
    min-height: 220px;
    margin: 12px;
    padding: 12px;
  }

  .shinai-art-copy {
    padding: 0 18px 20px;
  }

  .shinai-art-tile.is-empty {
    min-height: 210px;
  }

  .shinai-art-tile.is-empty .shinai-art-copy {
    padding: 24px 22px;
  }

  .shinai-featured-card {
    padding: 12px;
  }

  .shinai-featured-image-frame {
    width: 100%;
    height: clamp(246px, 68vw, 330px);
    min-height: 246px;
    padding: 14px;
  }

  .shinai-gallery-image-frame {
    min-height: 220px;
    margin: 12px 12px 0;
    padding: 12px;
  }

  .shinai-featured-content,
  .shinai-gallery-content {
    padding: 18px;
  }

  .shinai-gallery-placeholder {
    padding: 24px 18px;
  }

  .shinai-footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .shinai-footer-brand {
    flex-direction: column;
    gap: 10px;
  }

  .shinai-footer-logo-frame {
    width: clamp(56px, 17vw, 72px);
  }

  .shinai-footer-brand-text {
    text-align: center;
  }

  .shinai-footer-nav {
    justify-content: center;
  }

  .shinai-network-logo-frame {
    height: clamp(210px, 54vw, 232px);
    padding: 14px;
  }

  .shinai-network-content {
    padding: 18px 16px 20px;
  }

  .shinai-back-to-top {
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
    font-size: 1.06rem;
  }
}