:root {
  --c-primary: #0A1F44;
  --c-primary-dark: #16305F;
  --c-accent: #FF6A00;
  --c-gold: #FFD700;
  --c-paper: #F5EFE6;
  --c-ink: #1D1D1F;
  --c-line: #D9E2EC;
  --c-danger: #C0392B;
  --c-success: #27AE60;
  --c-deep: #0D3B44;
  --c-white: #FFFCF5;
  --c-soft: rgba(255, 106, 0, 0.2);

  --font-display: Impact, Haettenschweiler, "Arial Black", "Noto Sans SC", sans-serif;
  --font-brand: "Noto Serif SC", "Source Han Serif", Georgia, serif;
  --font-body: "Noto Sans SC", "Source Han Sans", "Microsoft YaHei", sans-serif;
  --font-data: "Roboto Mono", "SFMono-Regular", Consolas, monospace;

  --header-inner-h: 68px;
  --ticker-h: 4px;
  --border-width: 3px;
  --shadow-hard: 6px 6px 0 rgba(10, 31, 68, 0.9);
  --shadow-accent: 6px 6px 0 rgba(255, 106, 0, 0.85);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.75;
  color: var(--c-ink);
  background-color: var(--c-paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--c-primary);
  text-underline-offset: 2px;
}

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

p {
  margin: 0 0 1rem;
  overflow-wrap: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.75em;
  line-height: 1.2;
  font-weight: 900;
  color: var(--c-ink);
}

h1 {
  font-family: var(--font-brand);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  letter-spacing: 0.02em;
}

h3 {
  font-family: var(--font-brand);
  font-size: 1.3rem;
}

::selection {
  background: var(--c-accent);
  color: var(--c-primary);
}

:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
}

.main-content {
  display: block;
  width: 100%;
  min-height: 70vh;
}

.shell {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}

.shell--narrow {
  max-width: 800px;
  margin-inline: auto;
}

.shell--wide {
  max-width: 1680px;
}

.section {
  padding-block: clamp(3rem, 8vw, 5.5rem);
}

.section--compact {
  padding-block: clamp(1.5rem, 4vw, 2.5rem);
}

.section--blue {
  background: var(--c-primary);
  color: var(--c-white);
}

.title-brand {
  font-family: var(--font-brand);
  font-weight: 900;
}

.title-display {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 0.95;
}

.rule-thick {
  border: 0;
  border-top: var(--border-width) solid var(--c-ink);
  margin-block: clamp(2rem, 5vw, 3.5rem);
}

.sp-skip {
  position: fixed;
  top: -2rem;
  left: 1.5rem;
  z-index: 1000;
  background: var(--c-paper);
  color: var(--c-primary);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: 4px 4px 0 var(--c-ink);
  padding: 0.6rem 1rem;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: top 0.2s ease;
}

.sp-skip:focus-visible {
  top: 1rem;
}

.sp-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--c-primary);
  color: var(--c-white);
  border-bottom: 2px solid rgba(255, 255, 255, 0.15);
}

.sp-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: var(--ticker-h);
  background: var(--c-accent);
  pointer-events: none;
}

.sp-header__inner {
  max-width: 1440px;
  margin-inline: auto;
  min-height: var(--header-inner-h);
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  padding: 0.6rem clamp(1rem, 3vw, 2.5rem);
}

.sp-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--c-white);
  flex-shrink: 0;
}

.sp-brand:hover {
  color: var(--c-white);
}

.sp-brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--c-accent);
  color: var(--c-primary);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
  padding-right: 2px;
}

.sp-brand__text {
  font-family: var(--font-brand);
  font-weight: 900;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
}

.sp-nav {
  margin-left: auto;
}

.sp-nav__list {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
  margin: 0;
  padding: 0.3rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
}

.sp-nav__link {
  display: block;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  color: var(--c-paper);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background 0.2s ease, color 0.2s ease;
}

.sp-nav__link:hover {
  background: rgba(255, 255, 255, 0.18);
  color: var(--c-gold);
}

.sp-nav__link[aria-current="page"] {
  background: var(--c-accent);
  color: var(--c-primary);
  font-weight: 700;
}

.sp-header__tools {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.sp-fav {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  color: var(--c-paper);
  font-size: 0.83rem;
  font-weight: 500;
  line-height: 1;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.sp-fav:hover {
  background: rgba(255, 106, 0, 0.15);
  border-color: var(--c-accent);
  color: var(--c-paper);
}

.sp-fav.is-active {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.sp-fav__icon {
  color: var(--c-paper);
  font-size: 1rem;
  line-height: 1;
  transition: color 0.15s ease;
}

.sp-fav.is-active .sp-fav__icon {
  color: var(--c-gold);
}

.sp-version {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  font-size: 0.78rem;
  white-space: nowrap;
}

.sp-version__label {
  color: rgba(255, 255, 255, 0.6);
  margin-right: 0.4rem;
}

.sp-version__btn {
  background: none;
  border: 0;
  padding: 0.15rem 0.3rem;
  font-size: 0.78rem;
  color: var(--c-paper);
  border-radius: 999px;
  transition: color 0.15s ease, background 0.15s ease;
}

.sp-version__btn:hover {
  color: var(--c-gold);
}

.sp-version__btn.is-active {
  color: var(--c-gold);
  font-weight: 700;
  background: rgba(255, 215, 0, 0.12);
}

.sp-version__sep {
  color: rgba(255, 255, 255, 0.3);
  margin: 0 0.1rem;
}

.sp-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  background: transparent;
  border: 2px solid var(--c-accent);
  border-radius: 8px;
  align-items: center;
}

.sp-nav-toggle__bar {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--c-paper);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.sp-nav-toggle[aria-expanded="true"] .sp-nav-toggle__bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.sp-nav-toggle[aria-expanded="true"] .sp-nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.sp-nav-toggle[aria-expanded="true"] .sp-nav-toggle__bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.sp-ticker {
  display: block;
  height: var(--ticker-h);
  background: repeating-linear-gradient(90deg, var(--c-accent) 0 8px, rgba(255, 255, 255, 0.35) 8px 10px, transparent 10px 18px);
}

.sp-progress {
  position: fixed;
  top: var(--ticker-h);
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--c-gold), var(--c-accent));
  z-index: 950;
  pointer-events: none;
}

.sp-footer {
  position: relative;
  background: var(--c-primary);
  color: var(--c-white);
  border-top: 4px solid var(--c-accent);
  overflow: hidden;
}

.sp-footer::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -8%;
  width: 38%;
  height: 180%;
  background: rgba(255, 255, 255, 0.03);
  transform: rotate(15deg);
  pointer-events: none;
}

.sp-footer__stage {
  position: relative;
  max-width: 1440px;
  margin-inline: auto;
  padding: 3rem clamp(1rem, 3vw, 2.5rem) 2rem;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.2fr;
  gap: 2.5rem;
}

.sp-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--c-white);
}

.sp-footer__logo:hover {
  color: var(--c-white);
}

.sp-footer__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--c-accent);
  color: var(--c-primary);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
  padding-right: 2px;
}

.sp-footer__brandname {
  font-family: var(--font-brand);
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: 0.08em;
}

.sp-footer__slogan {
  margin-top: 1.1rem;
  font-family: var(--font-brand);
  font-weight: 700;
  color: var(--c-gold);
  font-size: 1.05rem;
}

.sp-footer__trust {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  border-left: 3px solid var(--c-accent);
  padding-left: 0.8rem;
}

.sp-footer__title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--c-accent);
  padding-bottom: 0.4rem;
  display: inline-block;
  margin-bottom: 0.9rem;
  color: var(--c-white);
}

.sp-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 2;
}

.sp-footer__list li {
  break-inside: avoid;
}

.sp-footer__list a {
  display: inline-block;
  padding: 0.24rem 0;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.15s ease, transform 0.15s ease;
}

.sp-footer__list a:hover {
  color: var(--c-gold);
  transform: translateX(4px);
}

.sp-footer__contact {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  overflow-wrap: break-word;
}

.sp-contact__label {
  display: inline-block;
  color: var(--c-gold);
  font-weight: 600;
  font-family: var(--font-data);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  margin-right: 0.4rem;
}

.sp-footer__legal {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.22);
}

.sp-footer__legal-inner {
  max-width: 1440px;
  margin-inline: auto;
  padding: 0.8rem clamp(1rem, 3vw, 2.5rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

.sp-footer__legal-inner a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  padding: 0.2rem 0.4rem;
  transition: color 0.15s ease;
}

.sp-footer__legal-inner a:hover {
  color: var(--c-gold);
}

.sp-footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.sp-footer__copy,
.sp-footer__icp {
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  background: var(--c-accent);
  color: var(--c-primary);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--c-ink);
  color: var(--c-primary);
  text-decoration: none;
}

.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--c-ink);
}

.btn--dark {
  background: var(--c-primary);
  border-color: var(--c-ink);
  color: var(--c-white);
  box-shadow: 6px 6px 0 rgba(255, 106, 0, 0.35);
}

.btn--dark:hover {
  background: var(--c-primary-dark);
  color: var(--c-gold);
}

.btn--ghost {
  background: transparent;
  border-color: var(--c-primary);
  color: var(--c-primary);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(10, 31, 68, 0.06);
  color: var(--c-accent);
  box-shadow: none;
  transform: translateY(-2px);
}

.btn--small {
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: var(--c-accent);
  color: var(--c-primary);
  border: 2px solid var(--c-ink);
}

.tag--gold {
  background: var(--c-gold);
}

.tag--dark {
  background: var(--c-primary);
  color: var(--c-white);
}

.tag--ghost {
  background: transparent;
  color: var(--c-primary);
}

.card {
  background: var(--c-paper);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
  padding: 1.25rem;
}

.card--flat {
  box-shadow: none;
}

.card--dark {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
  box-shadow: 6px 6px 0 rgba(255, 106, 0, 0.3);
}

.plate {
  position: relative;
  background: var(--c-paper);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: 4px 4px 0 rgba(10, 31, 68, 0.2);
  padding: 1.25rem;
}

.plate[data-label]::before {
  content: attr(data-label);
  position: absolute;
  top: -0.9rem;
  left: -0.6rem;
  z-index: 1;
  background: var(--c-accent);
  color: var(--c-primary);
  font-family: var(--font-data);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.15rem 0.7rem;
  border: 2px solid var(--c-ink);
  box-shadow: 2px 2px 0 rgba(10, 31, 68, 0.4);
  white-space: nowrap;
}

.datum {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-primary);
}

.datum--accent {
  color: var(--c-accent);
}

.datum--gold {
  color: var(--c-gold);
}

.datum--light {
  color: var(--c-white);
}

.figure {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-primary-dark);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: var(--shadow-hard);
}

.figure--ratio-wide {
  aspect-ratio: 16 / 9;
}

.figure--ratio-square {
  aspect-ratio: 1;
}

.figure--ratio-tall {
  aspect-ratio: 3 / 4;
}

.figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.figure:hover .figure__img {
  transform: scale(1.02);
}

.figure__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  background: rgba(10, 31, 68, 0.92);
  color: var(--c-white);
  font-size: 0.75rem;
  padding: 0.3rem 0.8rem;
  border-top: 2px solid var(--c-accent);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.85rem;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(10, 31, 68, 0.4);
  font-family: var(--font-data);
}

.breadcrumb__item a {
  color: var(--c-primary);
  text-decoration: none;
  font-weight: 500;
}

.breadcrumb__item a:hover {
  color: var(--c-accent);
  text-decoration: underline;
}

.breadcrumb__item[aria-current="page"] {
  color: var(--c-primary);
  font-weight: 700;
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr));
  gap: 1.25rem;
}

.map-card {
  position: relative;
  background: var(--c-paper);
  border: var(--border-width) solid var(--c-ink);
  box-shadow: 3px 3px 0 rgba(10, 31, 68, 0.7);
  padding: 1.25rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.map-card:hover {
  transform: translate(-2px, -3px);
  box-shadow: 7px 7px 0 rgba(255, 106, 0, 0.8);
}

.map-card__index {
  display: inline-block;
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--c-accent);
  border-bottom: 2px solid var(--c-gold);
  padding-bottom: 0.15rem;
  margin-bottom: 0.6rem;
  letter-spacing: 0.08em;
}

@media (max-width: 1100px) {
  :root {
    --header-inner-h: 60px;
  }

  .sp-nav-toggle {
    display: flex;
  }

  .sp-nav {
    position: fixed;
    top: calc(var(--header-inner-h) + var(--ticker-h));
    right: 0;
    bottom: 0;
    width: min(340px, 92vw);
    margin: 0;
    background: var(--c-primary);
    border-left: 4px solid var(--c-accent);
    box-shadow: -8px 0 0 rgba(10, 31, 68, 0.4);
    transform: translateX(105%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 900;
    padding: 1.5rem 1.25rem 2rem;
    overflow-y: auto;
  }

  .sp-nav[data-open="true"] {
    transform: translateX(0);
  }

  .sp-nav__list {
    flex-direction: column;
    align-items: stretch;
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 0;
    gap: 0.15rem;
  }

  .sp-nav__link {
    border-radius: 0;
    padding: 0.9rem 1rem;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .sp-nav__link[aria-current="page"] {
    background: var(--c-accent);
    color: var(--c-primary);
  }

  .sp-fav__label {
    display: none;
  }

  .sp-version__label {
    display: none;
  }

  .sp-fav {
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
  }

  .sp-footer__stage {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .sp-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .sp-brand__mark {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .sp-brand__text {
    font-size: 1.08rem;
  }

  .sp-version {
    padding: 0.15rem 0.5rem;
  }

  .sp-version__btn {
    padding: 0.1rem 0.2rem;
    font-size: 0.72rem;
  }

  .sp-footer__stage {
    grid-template-columns: 1fr;
    padding-top: 2rem;
  }

  .sp-footer__brand {
    grid-column: auto;
  }

  .sp-footer__list {
    columns: 1;
  }

  .sp-footer__legal-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .sp-version__sep,
  .sp-version__btn {
    display: none;
  }

  .sp-version__btn.is-active {
    display: inline-block;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}