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

/* ========== VARIABLES ========== */
:root {
  --color-bg: #0A1F44;
  --color-bg-deep: #071631;
  --color-panel: #112B54;
  --color-panel-2: #162F5E;
  --color-text: #FFFFFF;
  --color-text-2: #C8CCD4;
  --color-text-3: #8B93A7;
  --color-gold: #FFD700;
  --color-gold-soft: #FFE066;
  --color-red: #E63946;
  --color-paper: #F2F3F5;
  --color-success: #2ECC71;
  --color-error: #E74C3C;
  --font-heading: Impact, "Arial Black", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --border-color: rgba(255, 224, 102, 0.22);
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --radius: 3px;
}

/* ========== BASE ========== */
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  line-height: 1.12;
  margin: 0 0 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
}

h3 {
  font-size: 1.15rem;
}

h4 {
  font-size: 1rem;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--color-gold);
}

a:hover {
  color: var(--color-gold-soft);
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

main {
  display: block;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

::selection {
  background: rgba(255, 215, 0, 0.28);
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

#main-content {
  outline: none;
}

/* ========== UTILITIES ========== */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 1300;
  padding: 0.7rem 1.2rem;
  background: var(--color-gold);
  color: var(--color-bg);
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--color-bg-deep);
}

.skip-link:focus {
  left: 0;
}

/* ========== HEADER ========== */
.site-header {
  position: relative;
  background: var(--color-bg);
  border-bottom: 1px solid var(--border-color);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-red) 100%);
  z-index: 1200;
  pointer-events: none;
}

.masthead {
  position: relative;
  padding-top: 0.5rem;
}

.masthead__meta {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.25rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-2);
}

.masthead__refresh {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  padding: 0.22em 0.65em;
  color: var(--color-gold);
  border: 1px solid rgba(255, 224, 102, 0.35);
  background: rgba(255, 215, 0, 0.05);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.masthead__dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-red);
  box-shadow: 0 0 7px rgba(230, 57, 70, 0.8);
}

.masthead__main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand__mark {
  display: inline-block;
  flex: none;
  width: 38px;
  height: 30px;
  background: linear-gradient(135deg, var(--color-gold) 0%, #c9a000 100%);
  clip-path: polygon(
    0 100%,
    0 55%,
    22% 70%,
    35% 25%,
    50% 62%,
    65% 25%,
    78% 70%,
    100% 55%,
    100% 100%
  );
  transition: filter 0.2s ease;
}

.brand:hover .brand__mark {
  filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.6));
}

.brand__text {
  display: inline-flex;
  flex-direction: column;
}

.brand__title {
  font-family: var(--font-heading);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.1em;
  color: var(--color-text);
  text-transform: uppercase;
}

.brand__sub {
  margin-top: 2px;
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px 10px;
  background: transparent;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--color-gold-soft);
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-gold);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-nav {
  position: relative;
  background: rgba(7, 22, 49, 0.8);
}

.site-nav::before {
  content: "";
  display: block;
  height: 3px;
  background: repeating-linear-gradient(
    135deg,
    var(--color-gold) 0px,
    var(--color-gold) 10px,
    transparent 10px,
    transparent 20px
  );
}

.site-nav__list {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.25rem 1.25rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: block;
  position: relative;
  padding: 0.65rem 1rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  transition: color 0.2s ease;
}

.site-nav__link::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 50%;
  width: 10px;
  height: 9px;
  background: var(--color-gold);
  clip-path: polygon(
    0 100%,
    0 60%,
    22% 72%,
    35% 20%,
    50% 65%,
    65% 20%,
    78% 72%,
    100% 60%,
    100% 100%
  );
  transform: translateY(-50%) scale(0);
  transition: transform 0.2s ease;
  opacity: 0.9;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-gold);
}

.site-nav__link:hover::before,
.site-nav__link[aria-current="page"]::before {
  transform: translateY(-50%) scale(1);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__badge {
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-2);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.6rem;
  background: rgba(255, 255, 255, 0.02);
}

@keyframes navFade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== FOOTER ========== */
.site-footer {
  position: relative;
  margin-top: 4rem;
  background: linear-gradient(180deg, var(--color-panel) 0%, var(--color-bg-deep) 70%);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    135deg,
    var(--color-gold) 0px,
    var(--color-gold) 10px,
    var(--color-red) 10px,
    var(--color-red) 20px
  );
}

.site-footer__grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 3rem 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: 1.7fr 1fr 1.2fr;
  gap: 2.5rem;
}

.site-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer__logo:hover {
  color: var(--color-gold);
}

.site-footer__logo .brand__mark {
  width: 30px;
  height: 24px;
}

.site-footer__desc {
  margin: 1rem 0 0;
  max-width: 34em;
  color: var(--color-text-2);
  font-size: 0.9rem;
}

.site-footer__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.site-footer__heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.8rem;
}

.site-footer__nav {
  min-width: 0;
}

.site-footer__list li {
  margin: 0.45em 0;
  font-size: 0.9rem;
}

.site-footer__list a,
.site-footer__policy a {
  position: relative;
  color: var(--color-text-2);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer__list a::after,
.site-footer__policy a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: 100%;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.site-footer__list a:hover,
.site-footer__policy a:hover {
  color: var(--color-gold);
}

.site-footer__list a:hover::after,
.site-footer__policy a:hover::after {
  transform: scaleX(1);
}

.site-footer__info {
  min-width: 0;
  font-size: 0.9rem;
}

.site-footer__legal {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-2);
}

.site-footer__policy {
  margin: 0.75rem 0 0;
  font-size: 0.83rem;
}

.site-footer__sep {
  margin: 0 0.45em;
  color: var(--color-text-3);
}

.site-footer__bottom {
  border-top: 1px solid var(--border-color);
  background: rgba(7, 22, 49, 0.5);
  padding: 1.1rem 1.25rem;
  text-align: center;
}

.site-footer__service {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-2);
}

.site-footer__address {
  margin: 0.25rem 0 0;
  font-size: 0.78rem;
  color: var(--color-text-3);
}

/* ========== LAYOUT ========== */
.grid {
  display: grid;
  gap: 1.5rem;
}

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

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

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.split {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: 1.5rem 2.5rem;
  align-items: start;
}

.split__aside,
.split__main {
  min-width: 0;
}

.section {
  margin-bottom: 3rem;
}

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.section__head h2 {
  margin: 0;
}

/* ========== BUTTONS & LABELS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: var(--radius);
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-bg);
}

.btn--gold:hover {
  background: var(--color-gold-soft);
  color: var(--color-bg);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.4);
}

.btn--ghost {
  border-color: rgba(255, 224, 102, 0.6);
  color: var(--color-gold);
  background: transparent;
}

.btn--ghost:hover {
  background: rgba(255, 215, 0, 0.12);
  color: var(--color-gold);
}

.label {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.22em 0.72em;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--border-color);
  color: var(--color-text-2);
  background: transparent;
  border-radius: var(--radius);
}

.label--gold {
  border-color: rgba(255, 215, 0, 0.55);
  color: var(--color-gold);
  background: rgba(255, 215, 0, 0.07);
}

.label--red {
  border-color: rgba(230, 57, 70, 0.6);
  color: #ff7a87;
  background: rgba(230, 57, 70, 0.08);
}

.tag {
  display: inline-block;
  padding: 0.18rem 0.7rem;
  margin: 0.15rem 0.15rem 0.15rem 0;
  font-size: 0.75rem;
  color: var(--color-text-2);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.tag:hover {
  color: var(--color-gold);
  border-color: rgba(255, 215, 0, 0.5);
}

/* ========== COMPONENTS ========== */
.panel {
  background: var(--color-panel);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
}

.hero-frame {
  position: relative;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid rgba(255, 224, 102, 0.6);
  background:
    linear-gradient(135deg, rgba(255, 215, 0, 0.06) 0%, transparent 55%),
    radial-gradient(circle at 90% 20%, rgba(230, 57, 70, 0.08) 0%, transparent 35%),
    var(--color-panel);
}

.hero-frame::before,
.hero-frame::after {
  content: "";
  position: absolute;
  width: 28px;
  height: 28px;
}

.hero-frame::before {
  top: 8px;
  left: 8px;
  border-top: 2px solid var(--color-gold);
  border-left: 2px solid var(--color-gold);
}

.hero-frame::after {
  bottom: 8px;
  right: 8px;
  border-bottom: 2px solid var(--color-gold);
  border-right: 2px solid var(--color-gold);
}

.card {
  background: var(--color-panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--color-gold);
  padding: 1.25rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 224, 102, 0.55);
  box-shadow: var(--shadow);
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin-bottom: 0.4em;
}

.card__meta {
  font-size: 0.78rem;
  color: var(--color-text-2);
  letter-spacing: 0.06em;
}

.card__body {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-2);
}

.index-list li {
  border-bottom: 1px solid var(--border-color);
}

.index-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.25rem;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.index-list a::after {
  content: "→";
  color: var(--color-gold);
  transition: transform 0.2s ease;
}

.index-list a:hover {
  color: var(--color-gold);
  padding-left: 0.6rem;
}

.index-list a:hover::after {
  transform: translateX(3px);
}

.data-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.data-line dt {
  color: var(--color-text-2);
}

.data-line dd {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-heading);
  letter-spacing: 0.06em;
}

.stat {
  border-left: 3px solid var(--color-gold);
  padding: 0.25rem 0 0.25rem 1rem;
}

.stat__num {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.6rem;
  line-height: 1;
  color: var(--color-gold);
}

.stat__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-2);
}

/* ========== MEDIA PLACEHOLDER ========== */
.media {
  position: relative;
  display: block;
  background:
    linear-gradient(135deg, rgba(255, 224, 102, 0.04) 0%, transparent 60%),
    var(--color-panel);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.media--16x9 {
  aspect-ratio: 16 / 9;
}

.media--4x3 {
  aspect-ratio: 4 / 3;
}

.media--square {
  aspect-ratio: 1 / 1;
}

.media::after {
  content: "IMAGE SLOT";
  position: absolute;
  inset: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  color: var(--color-text-3);
  border: 1px dashed rgba(255, 255, 255, 0.14);
}

.media--gold {
  border-color: rgba(255, 215, 0, 0.3);
}

.media--gold::after {
  content: "CHAMPION IMAGE";
  color: var(--color-gold);
  border-color: rgba(255, 215, 0, 0.3);
}

/* ========== PAGE INTRO & PROSE ========== */
.page-head {
  position: relative;
  padding: 2rem 3.5rem 1.5rem 1.5rem;
  margin: 0 0 2.5rem;
  border: 1px solid var(--border-color);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.05) 0%, transparent 45%), var(--color-panel);
  overflow: hidden;
}

.page-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: repeating-linear-gradient(
    180deg,
    var(--color-gold) 0px,
    var(--color-gold) 6px,
    var(--color-red) 6px,
    var(--color-red) 12px
  );
}

.page-head__title {
  margin-bottom: 0.25rem;
}

.page-head__note {
  writing-mode: vertical-rl;
  position: absolute;
  right: 1rem;
  top: 1.25rem;
  max-height: calc(100% - 2.5rem);
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-text-2);
  border-right: 1px solid var(--border-color);
  padding-right: 0.5rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0;
  padding: 1rem 0;
  font-size: 0.78rem;
  color: var(--color-text-3);
}

.breadcrumb a {
  color: var(--color-text-2);
  text-decoration: none;
  transition: color 0.2s ease;
  border-bottom: 1px solid transparent;
}

.breadcrumb a:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.breadcrumb__sep {
  margin: 0 0.45rem;
  color: var(--color-text-3);
}

.prose {
  max-width: 72ch;
}

.prose p {
  margin-bottom: 1em;
}

.prose h2 {
  margin-top: 1.8em;
}

.prose ul,
.prose ol {
  margin-bottom: 1em;
  padding-left: 1.4em;
}

.prose ul {
  list-style: disc;
}

.prose ol {
  list-style: decimal;
}

.prose blockquote {
  border-left: 3px solid var(--color-gold);
  padding: 0.25em 0 0.25em 1em;
  margin: 1.5em 0;
  color: var(--color-text-2);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 990px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .masthead__edition {
    display: none;
  }

  .masthead__main {
    min-height: 68px;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .brand__title {
    font-size: 1.5rem;
  }

  .brand__sub {
    font-size: 0.52rem;
    letter-spacing: 0.2em;
  }

  .nav-toggle {
    display: inline-flex;
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-of-type(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-of-type(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    display: none;
  }

  .site-nav[data-open] {
    display: block;
    animation: navFade 0.25s ease;
  }

  .site-nav__list {
    flex-direction: column;
    padding: 0.5rem 1.25rem 0.75rem;
  }

  .site-nav__link {
    padding: 0.7rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-nav__badge {
    position: static;
    transform: none;
    display: block;
    text-align: center;
    margin: 0.75rem 1.25rem 1.25rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

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

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .page-head {
    padding-right: 1.5rem;
  }

  .page-head__note {
    display: none;
  }
}

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

  .site-nav {
    display: block;
  }
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}