:root {
  --sky: #87ceeb;
  --paper: #fff8dc;
  --grass: #7cfc00;
  --ink: #153139;
  --ink-soft: #49636a;
  --night-green: #2f4f4f;
  --night-purple: #4b0082;
  --sunset: #8b0000;
  --line: rgba(21, 49, 57, 0.18);
  --surface: #fffdf4;
  --surface-muted: #f2f7ef;
  --link: #174f6c;
  --shadow: 0 14px 34px rgba(21, 49, 57, 0.14);
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 12% 9%, rgba(124, 252, 0, 0.12), transparent 24%),
    radial-gradient(circle at 86% 4%, rgba(135, 206, 235, 0.22), transparent 27%),
    linear-gradient(135deg, var(--paper) 0%, #fffdf4 38%, rgba(47, 79, 79, 0.07) 100%);
  color: var(--ink);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.78;
  transition: background-color 180ms ease, color 180ms ease;
}

body[data-theme="night"] {
  --surface: #152d31;
  --surface-muted: #1b343b;
  --ink: #f8f4db;
  --ink-soft: #c6d5cf;
  --line: rgba(248, 244, 219, 0.2);
  --link: #b9e6f4;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
}

body.is-press-night {
  --surface: #152d31;
  --surface-muted: #1b343b;
  --ink: #f8f4db;
  --ink-soft: #c6d5cf;
  --line: rgba(248, 244, 219, 0.2);
  --link: #b9e6f4;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
}

body[data-theme="night"] .site-header,
body[data-theme="night"] .footer,
body.is-press-night .site-header,
body.is-press-night .footer {
  background: #102427;
}

body[data-theme="night"] .section--muted,
body[data-theme="night"] .index-card,
body[data-theme="night"] .faq-item,
body[data-theme="night"] .detail-panel,
body[data-theme="night"] .table-wrap,
body.is-press-night .section--muted,
body.is-press-night .index-card,
body.is-press-night .faq-item,
body.is-press-night .detail-panel,
body.is-press-night .table-wrap {
  background: #1d393f;
}

body[data-theme="night"] .hero-copy,
body[data-theme="night"] .hero-kicker,
body[data-theme="night"] .hero-subtitle,
body[data-theme="night"] .hero-meta,
body.is-press-night .hero-copy,
body.is-press-night .hero-kicker,
body.is-press-night .hero-subtitle,
body.is-press-night .hero-meta {
  color: #fffbea;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

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

figure {
  margin: 0;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", "SimSun", serif;
  font-weight: 700;
  line-height: 1.22;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(2.55rem, 5vw, 5.25rem);
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: 0;
}

h3 {
  margin-bottom: 9px;
  font-size: 1.25rem;
  letter-spacing: 0;
}

:focus-visible {
  outline: 3px solid var(--sunset);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: -60px;
  left: 14px;
  padding: 8px 12px;
  border-radius: 4px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
}

.skip-link:focus {
  top: 14px;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 244, 0.96);
  backdrop-filter: blur(12px);
}

.nav-shell {
  display: flex;
  min-height: 70px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
  white-space: nowrap;
}

.brand::before {
  width: 9px;
  height: 9px;
  border: 2px solid var(--sunset);
  border-radius: 50%;
  content: "";
}

.brand small {
  color: var(--ink-soft);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 19px;
}

.primary-nav a {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  color: var(--sunset);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.icon-button:hover {
  border-color: var(--night-purple);
  color: var(--night-purple);
}

.theme-icon {
  width: 15px;
  height: 15px;
  border: 2px solid currentColor;
  border-radius: 50%;
  box-shadow: -4px 0 0 -2px var(--surface);
}

.menu-toggle {
  display: none;
}

.menu-toggle span {
  display: block;
  width: 17px;
  height: 2px;
  margin: 2px 0;
  background: currentColor;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(780px, calc(100svh - 70px));
  overflow: hidden;
  background: var(--sky);
  cursor: crosshair;
}

.hero-media {
  position: absolute;
  z-index: -2;
  inset: 0;
}

.hero-media picture,
.hero-media img {
  width: 100%;
  height: 100%;
}

.hero-media img {
  object-fit: cover;
  object-position: center 40%;
  filter: saturate(1.08) contrast(0.97) sepia(0.08);
}

.hero-media::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 248, 220, 0.28) 0%, rgba(47, 79, 79, 0.44) 64%, rgba(75, 0, 130, 0.62) 100%),
    linear-gradient(0deg, rgba(47, 79, 79, 0.56), rgba(135, 206, 235, 0.04) 48%);
  content: "";
}

.hero-rail {
  position: absolute;
  z-index: -1;
  bottom: -78px;
  left: 4%;
  width: 5px;
  height: 310px;
  border-left: 2px solid rgba(255, 248, 220, 0.42);
  transform: rotate(-24deg);
}

.hero-rail::after {
  position: absolute;
  top: 0;
  left: 19px;
  width: 2px;
  height: 330px;
  background: rgba(255, 248, 220, 0.31);
  content: "";
}

.hero-inner {
  position: relative;
  z-index: 4;
  display: flex;
  min-height: inherit;
  align-items: center;
  justify-content: space-between;
  gap: clamp(26px, 5vw, 70px);
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 116px 0 105px;
}

.hero-copy {
  max-width: 670px;
  color: #fffbea;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  color: #fffbea;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 650px;
  color: #fffbea;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
}

.hero-subtitle {
  max-width: 590px;
  margin-bottom: 14px;
  color: #fffbea;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.5;
}

.hero-copy > p:not(.hero-subtitle) {
  max-width: 610px;
  margin-bottom: 26px;
  color: rgba(255, 251, 234, 0.94);
  font-size: 1.03rem;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: var(--sunset);
  color: #fff;
  font-weight: 700;
  line-height: 1.25;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 150ms ease, transform 150ms ease, border-color 150ms ease;
}

.button:hover {
  background: #a81212;
  color: #fff;
  transform: translateY(-1px);
}

.button--outline {
  border-color: rgba(255, 255, 255, 0.7);
  background: transparent;
  color: #fff;
}

.button--outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

.button--quiet {
  border-color: var(--ink);
  background: transparent;
  color: var(--ink);
}

.button--quiet:hover {
  border-color: var(--sunset);
  background: transparent;
  color: var(--sunset);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 30px;
  color: rgba(255, 251, 234, 0.9);
  font-size: 0.83rem;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-meta span::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--grass);
  content: "";
}

.page-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 16% 8%, rgba(135, 206, 235, 0.42), transparent 24%),
    radial-gradient(circle at 88% 22%, rgba(124, 252, 0, 0.16), transparent 20%),
    linear-gradient(135deg, var(--paper), rgba(47, 79, 79, 0.1));
}

.page-hero::before {
  position: absolute;
  top: 16px;
  right: 13%;
  width: min(310px, 32vw);
  height: 72%;
  border: 1px solid rgba(47, 79, 79, 0.22);
  background:
    linear-gradient(90deg, rgba(47, 79, 79, 0.16) 0 2px, transparent 3px 100%),
    repeating-linear-gradient(0deg, rgba(47, 79, 79, 0.16) 0 2px, transparent 3px 46px),
    rgba(255, 248, 220, 0.42);
  content: "";
  opacity: 0.52;
  transform: rotate(-2deg);
}

.page-hero::after {
  position: absolute;
  top: 0;
  right: 8%;
  width: 2px;
  height: 100%;
  background: rgba(139, 0, 0, 0.22);
  transform: rotate(26deg);
  content: "";
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 82px 0 62px;
}

.page-hero h1 {
  max-width: 800px;
  margin-bottom: 15px;
  font-size: clamp(2.25rem, 4vw, 4.15rem);
}

.page-hero p {
  max-width: 710px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.crumbs a {
  color: inherit;
}

.crumbs span[aria-hidden="true"] {
  opacity: 0.6;
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 22px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.page-meta strong {
  color: var(--ink);
}

.section {
  padding: 88px 0;
}

.section--compact {
  padding: 58px 0;
}

.section--muted {
  background: var(--surface-muted);
}

.section--night {
  background: var(--night-green);
  color: #f7f5df;
}

.section--night h2,
.section--night h3 {
  color: #fffbea;
}

.section--night p,
.section--night li {
  color: rgba(255, 251, 234, 0.9);
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.section-lead {
  max-width: 770px;
  margin-bottom: 38px;
  color: var(--ink-soft);
  font-size: 1.06rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.split--top {
  align-items: start;
}

.media-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--night-green);
  box-shadow: var(--shadow);
}

.media-frame img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.media-frame figcaption {
  padding: 12px 15px;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.summary-box {
  border-top: 3px solid var(--sunset);
  border-bottom: 1px solid var(--line);
  padding: 22px 0 20px;
}

.summary-box p {
  margin-bottom: 0;
}

.summary-label {
  margin-bottom: 10px;
  color: var(--sunset);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 40px 0 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.stat-grid div {
  min-height: 110px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat-grid dt {
  margin-bottom: 7px;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.stat-grid dd {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
}

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

.feature-grid article {
  border-top: 2px solid var(--sky);
  padding: 18px 0 0;
}

.feature-grid article:nth-child(2) {
  border-color: var(--grass);
}

.feature-grid article:nth-child(3) {
  border-color: var(--sunset);
}

.feature-grid p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.timeline {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.timeline li {
  position: relative;
  padding: 0 0 32px 32px;
}

.timeline li::before {
  position: absolute;
  top: 8px;
  left: -5px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: var(--sunset);
  content: "";
}

.timeline time {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--sunset);
  font-size: 0.83rem;
  font-weight: 800;
}

.timeline p {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 42px;
  border-top: 1px solid var(--line);
}

.guide-step {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.step-label {
  display: inline-flex;
  min-width: 42px;
  margin-bottom: 12px;
  color: var(--sunset);
  font-size: 0.84rem;
  font-weight: 800;
}

.guide-step p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 34px;
}

.section-heading-row .section-lead {
  margin-bottom: 0;
}

.play-heading {
  margin-bottom: 42px;
}

.play-heading > div {
  max-width: 740px;
}

.play-signal {
  flex: 0 0 250px;
  padding: 18px 20px;
  border-left: 3px solid var(--sunset);
  background:
    linear-gradient(135deg, rgba(135, 206, 235, 0.2), rgba(75, 0, 130, 0.08)),
    var(--surface);
}

.play-signal__label {
  display: block;
  margin-bottom: 8px;
  color: var(--sunset);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.play-signal strong {
  display: block;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.05rem;
  line-height: 1.4;
}

.play-signal p {
  margin: 7px 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.55;
}

.play-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: clamp(28px, 5vw, 66px);
  align-items: stretch;
}

.play-media {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--night-green);
  box-shadow: var(--shadow);
}

.play-media__image,
.play-media picture {
  position: relative;
  overflow: hidden;
  flex: 1;
  min-height: 420px;
}

.play-media picture {
  display: block;
  height: 100%;
}

.play-media__image::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 52%, rgba(47, 79, 79, 0.45)),
    linear-gradient(90deg, rgba(255, 248, 220, 0.14), transparent 36%, rgba(75, 0, 130, 0.2));
  content: "";
  pointer-events: none;
}

.play-media img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.04) contrast(0.98) sepia(0.08);
}

.play-media__stamp {
  position: absolute;
  z-index: 1;
  top: 18px;
  left: 18px;
  padding: 6px 9px;
  border: 1px solid rgba(255, 248, 220, 0.55);
  background: rgba(47, 79, 79, 0.72);
  color: #fffbea;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.play-media figcaption {
  display: grid;
  gap: 5px;
  padding: 16px 19px 18px;
  color: rgba(255, 251, 234, 0.84);
  font-size: 0.86rem;
  line-height: 1.6;
}

.play-media__caption-label {
  color: var(--sky);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.play-route {
  min-width: 0;
  padding: 4px 0 0;
}

.play-route__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 0 0 15px 50px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.22rem;
  font-weight: 700;
}

.play-route__header small {
  color: var(--ink-soft);
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
}

.play-steps {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.play-steps::before {
  position: absolute;
  top: 30px;
  bottom: 30px;
  left: 18px;
  width: 1px;
  background:
    linear-gradient(180deg, var(--sky), var(--sunset) 55%, var(--night-purple));
  content: "";
  opacity: 0.6;
}

.play-steps li {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 24px 0 24px;
  border-bottom: 1px solid var(--line);
}

.play-steps li:last-child {
  border-bottom: 0;
}

.play-step__number {
  position: relative;
  z-index: 1;
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--surface);
  border-radius: 50%;
  background: var(--sunset);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: 0 0 0 4px var(--surface-muted);
}

.play-steps h3 {
  margin-bottom: 5px;
  font-size: 1.12rem;
}

.play-steps p {
  max-width: 450px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.68;
}

.play-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px 18px;
  margin-top: 30px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.play-links a {
  color: var(--sunset);
  font-weight: 700;
  text-decoration: none;
}

.play-links a:hover {
  color: var(--night-purple);
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.index-card {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fffdf4;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 150ms ease, transform 150ms ease, box-shadow 150ms ease;
}

.index-card:hover {
  border-color: var(--night-purple);
  color: var(--ink);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.index-card .index-number {
  color: var(--sunset);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.index-card h3 {
  margin: 28px 0 10px;
  font-size: 1.22rem;
}

.index-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.65;
}

.index-card .index-more {
  margin-top: 17px;
  color: var(--sunset);
  font-size: 0.86rem;
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fffdf4;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th,
td {
  min-width: 130px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
}

td {
  color: var(--ink-soft);
  font-size: 0.93rem;
}

tr:last-child td {
  border-bottom: 0;
}

.route-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-list li {
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.route-list strong {
  display: block;
  margin-bottom: 4px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.08rem;
}

.route-list span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.section--night .section-lead,
.section--night .route-list span {
  color: rgba(255, 251, 234, 0.88);
  font-size: 0.98rem;
  line-height: 1.78;
}

.section--night .route-list li {
  border-color: rgba(255, 248, 220, 0.2);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fffdf4;
}

.faq-item summary {
  position: relative;
  padding: 18px 48px 18px 19px;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.45;
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  top: 19px;
  right: 20px;
  color: var(--sunset);
  content: "+";
  font-family: Arial, sans-serif;
  font-size: 1.4rem;
  font-weight: 400;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin: 0;
  padding: 0 19px 20px;
  color: var(--ink-soft);
}

.notice {
  border-left: 3px solid var(--sunset);
  padding: 4px 0 4px 18px;
  color: var(--ink-soft);
}

.notice p:last-child {
  margin-bottom: 0;
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.note-grid article {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.note-grid p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.topic-card {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(135deg, rgba(255, 248, 220, 0.86), rgba(135, 206, 235, 0.12)),
    #fffdf4;
}

.topic-card::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 82px;
  height: 82px;
  border-left: 1px solid rgba(139, 0, 0, 0.24);
  border-bottom: 1px solid rgba(139, 0, 0, 0.24);
  background: rgba(75, 0, 130, 0.08);
  content: "";
}

.topic-card p:last-child,
.topic-card ul:last-child,
.topic-card ol:last-child {
  margin-bottom: 0;
}

.topic-card ul,
.topic-card ol {
  padding-left: 1.2em;
}

.data-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.data-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.data-list li:last-child {
  border-bottom: 0;
}

.data-list strong {
  display: block;
  margin-bottom: 4px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.05rem;
}

.data-list span {
  color: var(--ink-soft);
}

.dense-table th,
.dense-table td {
  min-width: 170px;
}

.section-kicker {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--sunset);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.detail-panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fffdf4;
}

.detail-panel h2,
.detail-panel h3 {
  margin-bottom: 11px;
}

.detail-panel p:last-child {
  margin-bottom: 0;
}

.download-band {
  position: relative;
  overflow: hidden;
  background: var(--night-purple);
  color: #fff;
}

.download-band::before {
  position: absolute;
  top: -50px;
  right: 8%;
  width: 110px;
  height: 110px;
  border: 1px solid rgba(255, 248, 220, 0.35);
  border-radius: 50%;
  content: "";
}

.download-band h2 {
  color: #fffbea;
}

.download-band p {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(255, 251, 234, 0.88);
}

.download-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.footer {
  border-top: 1px solid var(--line);
  background: #f7f4e7;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.95fr 0.85fr;
  gap: 40px;
  padding: 58px 0 36px;
}

.footer-title {
  margin-bottom: 12px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.15rem;
  font-weight: 700;
}

.footer p,
.footer li,
.footer a {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.footer ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 20px;
  padding: 19px 0 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.79rem;
}

.toast {
  position: fixed;
  z-index: 200;
  right: 18px;
  bottom: 18px;
  max-width: min(360px, calc(100% - 36px));
  padding: 13px 15px;
  border: 1px solid rgba(255, 248, 220, 0.55);
  border-radius: 5px;
  background: #152d31;
  color: #fffbea;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.26);
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease;
}

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

.not-found {
  min-height: 60svh;
  display: grid;
  place-items: center;
  padding: 70px 20px;
  text-align: center;
}

.not-found-inner {
  max-width: 600px;
}

.not-found .error-code {
  margin-bottom: 11px;
  color: var(--sunset);
  font-size: clamp(4.7rem, 15vw, 10rem);
  font-weight: 800;
  line-height: 0.8;
}

.time-clock {
  position: relative;
  border-color: rgba(47, 79, 79, 0.35);
  background:
    radial-gradient(circle, rgba(255, 248, 220, 0.95) 0 43%, rgba(135, 206, 235, 0.28) 44% 50%, transparent 51%),
    linear-gradient(135deg, rgba(255, 248, 220, 0.9), rgba(47, 79, 79, 0.12));
}

.time-clock::before,
.time-clock::after {
  position: absolute;
  left: 50%;
  bottom: 50%;
  width: 2px;
  border-radius: 999px;
  background: var(--sunset);
  content: "";
  transform-origin: bottom center;
}

.time-clock::before {
  height: 11px;
  transform: translateX(-50%) rotate(34deg);
}

.time-clock::after {
  height: 8px;
  background: var(--night-purple);
  transform: translateX(-50%) rotate(-54deg);
}

.time-clock .theme-icon {
  width: 24px;
  height: 24px;
  border-color: rgba(47, 79, 79, 0.65);
  box-shadow: none;
}

body[data-theme="night"] .time-clock {
  border-color: rgba(255, 248, 220, 0.38);
  background:
    radial-gradient(circle, rgba(75, 0, 130, 0.65) 0 42%, rgba(139, 0, 0, 0.48) 43% 50%, transparent 51%),
    var(--night-green);
}

body[data-theme="night"] .page-hero,
body.is-press-night .page-hero {
  background:
    radial-gradient(circle at 16% 8%, rgba(135, 206, 235, 0.12), transparent 24%),
    radial-gradient(circle at 84% 24%, rgba(139, 0, 0, 0.24), transparent 22%),
    linear-gradient(135deg, #142d31, #24113b);
}

body[data-theme="night"] .page-hero::before,
body.is-press-night .page-hero::before {
  border-color: rgba(255, 248, 220, 0.18);
  background:
    linear-gradient(90deg, rgba(255, 248, 220, 0.18) 0 2px, transparent 3px 100%),
    repeating-linear-gradient(0deg, rgba(255, 248, 220, 0.16) 0 2px, transparent 3px 46px),
    rgba(47, 79, 79, 0.38);
}

body[data-theme="night"] .hero-media img,
body[data-theme="night"] .media-frame img,
body[data-theme="night"] .album-photo img,
body.is-press-night .hero-media img,
body.is-press-night .media-frame img,
body.is-press-night .album-photo img {
  filter: saturate(0.82) brightness(0.72) contrast(1.12);
}

.hero-hidden-window {
  position: absolute;
  z-index: 1;
  right: clamp(18px, 7vw, 112px);
  bottom: clamp(72px, 10vw, 138px);
  width: min(34vw, 390px);
  min-width: 260px;
  overflow: hidden;
  border: 1px solid rgba(255, 248, 220, 0.62);
  background: var(--night-green);
  box-shadow:
    0 22px 42px rgba(0, 0, 0, 0.34),
    inset 0 0 0 8px rgba(75, 0, 130, 0.2);
  opacity: 0;
  transform: translateY(22px) rotate(-1deg);
  transition: opacity 220ms ease, transform 220ms ease;
}

.hero-hidden-window::before {
  position: absolute;
  z-index: 2;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 49%, rgba(255, 248, 220, 0.42) 50%, transparent 51%),
    linear-gradient(0deg, rgba(139, 0, 0, 0.38), transparent 42%);
  content: "";
}

.hero-hidden-window img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.76) brightness(0.62) contrast(1.18);
}

.hero:hover .hero-hidden-window,
body[data-theme="night"] .hero-hidden-window,
body.is-press-night .hero-hidden-window {
  opacity: 0.9;
  transform: translateY(0) rotate(-1deg);
}

.film-grain,
.tree-shadow,
.cicada-wave {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.film-grain {
  z-index: 2;
  opacity: 0.22;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.34) 0 1px, transparent 2px),
    radial-gradient(circle at 72% 33%, rgba(47, 79, 79, 0.24) 0 1px, transparent 2px),
    radial-gradient(circle at 28% 80%, rgba(139, 0, 0, 0.2) 0 1px, transparent 2px);
  background-size: 11px 13px, 17px 19px, 23px 29px;
  mix-blend-mode: soft-light;
}

.tree-shadow {
  z-index: 2;
  opacity: 0.28;
  background:
    linear-gradient(111deg, transparent 0 8%, rgba(47, 79, 79, 0.36) 9% 11%, transparent 12% 100%),
    linear-gradient(69deg, transparent 0 34%, rgba(47, 79, 79, 0.28) 35% 37%, transparent 38% 100%),
    radial-gradient(ellipse at 12% 22%, rgba(47, 79, 79, 0.3), transparent 24%),
    radial-gradient(ellipse at 78% 12%, rgba(47, 79, 79, 0.24), transparent 28%);
  mix-blend-mode: multiply;
  animation: treeDrift 10s ease-in-out infinite alternate;
}

.cicada-wave {
  z-index: 2;
  top: auto;
  bottom: 34px;
  height: 74px;
  opacity: 0.72;
  background:
    repeating-linear-gradient(90deg, transparent 0 16px, rgba(255, 248, 220, 0.5) 17px 18px, transparent 19px 34px),
    linear-gradient(90deg, rgba(135, 206, 235, 0), rgba(255, 248, 220, 0.4), rgba(139, 0, 0, 0.2), rgba(75, 0, 130, 0));
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 72%);
}

.hero-bubbles {
  position: absolute;
  z-index: 3;
  inset: 0;
  overflow: hidden;
}

.hero-bubble {
  position: absolute;
  left: var(--bubble-left);
  bottom: -90px;
  width: var(--bubble-size);
  height: var(--bubble-size);
  border: 1px solid rgba(255, 248, 220, 0.72);
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.86) 0 8%, transparent 9%),
    radial-gradient(circle at 64% 72%, rgba(135, 206, 235, 0.42), transparent 34%),
    rgba(255, 248, 220, 0.1);
  box-shadow:
    inset -8px -9px 20px rgba(135, 206, 235, 0.18),
    0 0 18px rgba(255, 248, 220, 0.16);
  opacity: 0.72;
  transform: translate3d(0, 0, 0);
  animation: bubbleRise var(--bubble-duration) linear var(--bubble-delay) infinite;
  cursor: crosshair;
}

.hero-bubble:hover,
.hero-bubble.is-popped {
  animation-play-state: paused;
  opacity: 0;
  transform: scale(1.8);
  transition: opacity 160ms ease, transform 160ms ease;
}

.phone-hint {
  position: relative;
  flex: 0 0 min(292px, 28vw);
  margin-left: auto;
  padding: 18px 18px 18px 20px;
  border: 1px solid rgba(255, 248, 220, 0.42);
  border-radius: 7px;
  background:
    linear-gradient(145deg, rgba(47, 79, 79, 0.88), rgba(75, 0, 130, 0.72)),
    var(--night-green);
  color: #fffbea;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.32);
}

.phone-hint::before {
  position: absolute;
  top: -8px;
  right: 18px;
  width: 52px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 248, 220, 0.62);
  content: "";
}

.phone-hint span {
  display: block;
  margin-bottom: 8px;
  color: var(--sky);
  font-size: 0.78rem;
  font-weight: 800;
}

.phone-hint p {
  margin: 0;
  color: rgba(255, 251, 234, 0.92);
  font-size: 0.91rem;
  line-height: 1.65;
}

.phone-hint.is-changing {
  animation: phonePulse 360ms ease;
}

.dual-track {
  position: relative;
  align-items: stretch;
}

.dual-track::before {
  position: absolute;
  top: -18px;
  bottom: -18px;
  left: calc(50% + 10px);
  width: 3px;
  background:
    linear-gradient(180deg, rgba(135, 206, 235, 0), rgba(139, 0, 0, 0.44), rgba(75, 0, 130, 0)),
    var(--night-green);
  content: "";
  opacity: 0.34;
  transform: rotate(5deg);
}

.dual-track > * {
  position: relative;
  z-index: 1;
}

.media-frame {
  position: relative;
}

.media-frame::before {
  position: absolute;
  z-index: 1;
  inset: 10px;
  border: 1px solid rgba(255, 248, 220, 0.35);
  content: "";
  pointer-events: none;
}

.shoji-grid {
  gap: 0;
  border: 1px solid var(--line);
  background: var(--night-green);
}

.shoji-grid article {
  position: relative;
  min-height: 246px;
  overflow: hidden;
  padding: 30px 24px 26px;
  border: 0;
  border-right: 1px solid rgba(47, 79, 79, 0.26);
  background:
    linear-gradient(90deg, rgba(47, 79, 79, 0.1), transparent 20% 80%, rgba(75, 0, 130, 0.12)),
    var(--paper);
  cursor: crosshair;
}

.shoji-grid article:last-child {
  border-right: 0;
}

.shoji-grid article::before,
.shoji-grid article::after {
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: 0;
  width: 50%;
  background:
    linear-gradient(90deg, rgba(47, 79, 79, 0.16) 0 3px, transparent 4px 100%),
    repeating-linear-gradient(0deg, rgba(47, 79, 79, 0.18) 0 2px, transparent 3px 42px),
    rgba(255, 248, 220, 0.68);
  content: "";
  transition: transform 260ms ease, opacity 260ms ease;
}

.shoji-grid article::before {
  left: 0;
}

.shoji-grid article::after {
  right: 0;
}

.shoji-grid article:hover::before,
.shoji-grid article:focus-within::before,
.shoji-grid article.is-open::before {
  transform: translateX(-78%);
  opacity: 0.35;
}

.shoji-grid article:hover::after,
.shoji-grid article:focus-within::after,
.shoji-grid article.is-open::after {
  transform: translateX(78%);
  opacity: 0.35;
}

.shoji-grid h3,
.shoji-grid p {
  position: relative;
  z-index: 2;
}

.memory-section {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 18%, rgba(135, 206, 235, 0.34), transparent 28%),
    radial-gradient(circle at 88% 20%, rgba(124, 252, 0, 0.18), transparent 22%),
    linear-gradient(135deg, var(--paper), #fffdf4 46%, rgba(75, 0, 130, 0.1));
}

.memory-section::before {
  position: absolute;
  inset: 28px 0 auto 0;
  height: 3px;
  background: repeating-linear-gradient(90deg, rgba(139, 0, 0, 0.36) 0 42px, transparent 43px 74px);
  content: "";
  opacity: 0.48;
}

.album-heading {
  align-items: end;
  margin-bottom: 40px;
}

.album-heading > div {
  max-width: 760px;
}

.album-index-link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--sunset);
  color: var(--sunset);
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
}

.album-index-link span {
  font-size: 1.15rem;
  line-height: 1;
}

.album-index-link:hover {
  color: var(--night-purple);
  border-color: var(--night-purple);
}

.album-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(290px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.album-photo {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(47, 79, 79, 0.18);
  border-radius: 4px;
  background:
    linear-gradient(180deg, #fffdf4, var(--paper)),
    #fffdf4;
  box-shadow:
    0 18px 32px rgba(21, 49, 57, 0.18),
    inset 0 -24px 36px rgba(135, 206, 235, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
  cursor: crosshair;
}

.album-photo--feature {
  height: auto;
}

.album-side {
  display: grid;
  gap: 18px;
}

.album-photo__image {
  position: relative;
  overflow: hidden;
  flex: 0 0 auto;
  aspect-ratio: 16 / 10;
  background: var(--night-green);
}

.album-photo__image picture {
  display: block;
  width: 100%;
  height: 100%;
}

.album-photo__image::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(47, 79, 79, 0.46), transparent 52%),
    radial-gradient(circle at 68% 22%, rgba(139, 0, 0, 0.25), transparent 28%);
  content: "";
  opacity: 0;
  transition: opacity 220ms ease;
}

.album-photo__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(0.98) sepia(0.1);
  transition: filter 220ms ease, transform 220ms ease;
}

.album-photo--feature .album-photo__image {
  aspect-ratio: 6 / 5;
}

.album-photo__mark {
  position: absolute;
  z-index: 2;
  top: 13px;
  left: 13px;
  display: inline-grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(255, 248, 220, 0.62);
  background: rgba(47, 79, 79, 0.72);
  color: #fffbea;
  font-size: 0.73rem;
  font-weight: 800;
}

.album-photo:hover,
.album-photo:focus-within,
.album-photo.is-revealed {
  border-color: var(--sunset);
  box-shadow: 0 22px 44px rgba(21, 49, 57, 0.22);
  transform: translateY(-4px);
}

.album-photo:hover .album-photo__image::after,
.album-photo:focus-within .album-photo__image::after,
.album-photo.is-revealed .album-photo__image::after {
  opacity: 1;
}

.album-photo:hover .album-photo__image img,
.album-photo:focus-within .album-photo__image img,
.album-photo.is-revealed .album-photo__image img {
  filter: saturate(0.8) brightness(0.76) contrast(1.12);
  transform: scale(1.025);
}

.album-photo figcaption {
  display: grid;
  gap: 4px;
  min-height: 96px;
  padding: 14px 16px 16px;
  color: var(--ink-soft);
  line-height: 1.55;
}

.album-photo figcaption strong {
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.08rem;
}

.album-caption-meta {
  color: var(--sunset);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.album-photo figcaption > span:last-child {
  font-size: 0.82rem;
}

.album-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  margin-top: 18px;
  padding: 14px 17px;
  border-left: 3px solid var(--night-purple);
  background: rgba(255, 248, 220, 0.58);
}

.album-note__label {
  color: var(--night-purple);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.album-note p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

body[data-theme="night"] .shoji-grid article,
body[data-theme="night"] .album-photo,
body.is-press-night .shoji-grid article,
body.is-press-night .album-photo {
  background:
    linear-gradient(145deg, rgba(47, 79, 79, 0.94), rgba(75, 0, 130, 0.35)),
    var(--night-green);
}

body[data-theme="night"] .topic-card,
body.is-press-night .topic-card {
  background:
    linear-gradient(145deg, rgba(47, 79, 79, 0.94), rgba(75, 0, 130, 0.24)),
    var(--night-green);
}

body[data-theme="night"] .shoji-grid article::before,
body[data-theme="night"] .shoji-grid article::after,
body.is-press-night .shoji-grid article::before,
body.is-press-night .shoji-grid article::after {
  background:
    linear-gradient(90deg, rgba(255, 248, 220, 0.18) 0 3px, transparent 4px 100%),
    repeating-linear-gradient(0deg, rgba(255, 248, 220, 0.2) 0 2px, transparent 3px 42px),
    rgba(47, 79, 79, 0.72);
}

body[data-theme="night"] .memory-section,
body.is-press-night .memory-section {
  background:
    radial-gradient(circle at 16% 20%, rgba(135, 206, 235, 0.16), transparent 26%),
    radial-gradient(circle at 78% 12%, rgba(139, 0, 0, 0.24), transparent 28%),
    linear-gradient(145deg, #162f34, #24113b);
}

body[data-theme="night"] .play-signal,
body.is-press-night .play-signal,
body[data-theme="night"] .album-note,
body.is-press-night .album-note {
  background: rgba(47, 79, 79, 0.62);
}

body[data-theme="night"] .play-media__image img,
body.is-press-night .play-media__image img {
  filter: saturate(0.82) brightness(0.72) contrast(1.12);
}

body[data-theme="night"] .download-band,
body.is-press-night .download-band {
  background:
    radial-gradient(circle at 88% 10%, rgba(139, 0, 0, 0.36), transparent 24%),
    linear-gradient(135deg, #142d31, var(--night-purple));
}

@keyframes bubbleRise {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  48% {
    transform: translate3d(var(--bubble-drift), -48vh, 0) scale(1.08);
  }

  to {
    transform: translate3d(calc(var(--bubble-drift) * -0.45), -110vh, 0) scale(0.86);
  }
}

@keyframes treeDrift {
  from {
    transform: translate3d(-12px, 0, 0) rotate(-1deg);
  }

  to {
    transform: translate3d(16px, 0, 0) rotate(1deg);
  }
}

@keyframes phonePulse {
  0% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-4px);
  }

  100% {
    transform: translateY(0);
  }
}

@media (max-width: 1020px) {
  .primary-nav {
    gap: 13px;
  }

  .primary-nav a {
    font-size: 0.82rem;
  }

  .index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .index-card:nth-child(4),
  .index-card:nth-child(5) {
    min-height: 185px;
  }
}

@media (max-width: 800px) {
  .nav-shell {
    min-height: 64px;
    width: min(var(--max), calc(100% - 30px));
  }

  .menu-toggle {
    display: grid;
  }

  .primary-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 15px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    padding: 10px 0;
    font-size: 0.97rem;
  }

  .hero {
    min-height: 690px;
  }

  .hero-inner {
    width: min(var(--max), calc(100% - 30px));
    display: grid;
    padding: 95px 0 86px;
  }

  .hero-media img {
    object-position: 54% center;
  }

  .hero-hidden-window {
    right: 18px;
    bottom: 28px;
    width: min(46vw, 280px);
    min-width: 190px;
    opacity: 0.72;
  }

  .phone-hint {
    width: min(100%, 360px);
    flex-basis: auto;
    margin: 6px 0 0;
  }

  .page-hero-inner,
  .container {
    width: min(var(--max), calc(100% - 30px));
  }

  .page-hero-inner {
    padding: 58px 0 47px;
  }

  .section {
    padding: 62px 0;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .section-heading-row {
    display: grid;
    gap: 22px;
    align-items: start;
  }

  .play-heading,
  .album-heading {
    margin-bottom: 30px;
  }

  .play-signal {
    max-width: 360px;
  }

  .play-layout {
    grid-template-columns: 1fr;
  }

  .play-media__image,
  .play-media img {
    min-height: 0;
  }

  .play-media img {
    aspect-ratio: 16 / 9;
  }

  .play-route {
    padding-top: 12px;
  }

  .album-layout {
    grid-template-columns: 1fr;
  }

  .album-side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: none;
  }

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

  .feature-grid,
  .note-grid,
  .topic-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .shoji-grid {
    display: grid;
  }

  .shoji-grid article {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(47, 79, 79, 0.26);
  }

  .shoji-grid article:last-child {
    border-bottom: 0;
  }

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

  .guide-grid,
  .route-list {
    grid-template-columns: 1fr;
  }

  .download-layout {
    display: grid;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .footer-grid > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 2.7rem;
  }

  h2 {
    font-size: 2rem;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 645px;
  }

  .hero-hidden-window {
    display: none;
  }

  .hero h1 {
    font-size: 2.65rem;
  }

  .hero-subtitle {
    font-size: 1.22rem;
  }

  .button {
    width: 100%;
  }

  .hero-actions,
  .button-row {
    display: grid;
  }

  .hero-meta {
    display: grid;
    gap: 7px;
  }

  .phone-hint {
    padding: 14px 15px;
  }

  .section-heading-row {
    gap: 18px;
  }

  .play-signal {
    max-width: none;
  }

  .play-route__header {
    padding-left: 46px;
  }

  .play-steps li {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .play-links {
    display: grid;
    gap: 10px;
  }

  .play-links span {
    margin-bottom: 2px;
  }

  .album-index-link {
    justify-self: start;
  }

  .album-side {
    grid-template-columns: 1fr;
  }

  .album-photo__image,
  .album-photo--feature .album-photo__image {
    aspect-ratio: 16 / 10;
  }

  .album-note {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .hero-bubble:nth-child(n+8) {
    display: none;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  .index-grid {
    grid-template-columns: 1fr;
  }

  .index-card {
    min-height: 165px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid > :first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.news-home-list,.news-index-list{display:grid;gap:18px}.news-home-card,.news-index-card{padding:22px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}.news-home-card h3,.news-index-card h2{margin-top:0}.news-home-card p,.news-index-card p{line-height:1.8;overflow-wrap:anywhere}.news-home-card a,.news-index-card a{color:var(--link);font-weight:700}.news-template-card{max-width:900px;margin:0 auto;padding:clamp(24px,5vw,56px);border:1px solid var(--line);border-radius:14px;background:var(--surface);box-shadow:var(--shadow)}.news-template-content{font-size:1.05rem;line-height:1.9;overflow-wrap:anywhere}.news-template-content p{white-space:pre-wrap}.news-template-content h2,.news-template-content h3{margin-top:1.8em}.news-template-content ul,.news-template-content ol{padding-left:1.4em}.news-template-content img{max-width:100%;height:auto}