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

:root {
  --color-main: #0A1F44;
  --color-surface: #0D2A5C;
  --color-deep: #071633;
  --color-orange: #FF6B35;
  --color-green: #39FF14;
  --color-gold: #FFD700;
  --color-text: #F5F7FA;
  --color-muted: #B0C4DE;
  --color-line: rgba(255, 255, 255, 0.12);
  --color-overlay: rgba(10, 31, 68, 0.8);
  --font-title: "Archivo Black", "Noto Sans SC", "PingFang SC", sans-serif;
  --font-data: "Roboto Mono", "Noto Sans SC", "SFMono-Regular", monospace;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", sans-serif;
  --header-h: 76px;
  --container: 1200px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --shadow-hard: 8px 8px 0 rgba(0, 0, 0, 0.18);
}

html {
  scroll-behavior: smooth;
}

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

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 48px 48px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  font-weight: 700;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
}

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

.container {
  width: min(var(--container), 92vw);
  margin-inline: auto;
}

.site-main {
  position: relative;
  z-index: 1;
  padding-top: var(--header-h);
}

.site-hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 92vh;
  margin-top: calc(-1 * var(--header-h));
  padding-top: calc(var(--header-h) + clamp(2rem, 6vw, 5rem));
}

.section {
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

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

.section--deep {
  background: var(--color-deep);
}

.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section__title {
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.12;
}

.section__index {
  font-family: var(--font-data);
  color: var(--color-orange);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
}

.scout-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 300;
  pointer-events: none;
  background: var(--color-green);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 500;
  padding: 10px 16px;
  background: var(--color-orange);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 12px;
  outline: 3px solid var(--color-green);
  outline-offset: 2px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background 0.25s var(--ease),
    border-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}

body.is-scrolled .site-header {
  background: rgba(10, 31, 68, 0.96);
  border-bottom-color: var(--color-line);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}

.site-header__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin-inline: auto;
  height: var(--header-h);
  padding-inline: clamp(16px, 4vw, 40px);
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  margin-right: auto;
  color: var(--color-text);
  text-decoration: none;
}

.brand__mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--color-orange);
  color: #fff;
  clip-path: polygon(0 0, 100% 0, 100% 82%, 0 100%);
}

.brand__mark svg {
  display: block;
  width: 28px;
  height: 28px;
}

.brand__text {
  min-width: 0;
}

.brand__name {
  display: block;
  font-family: var(--font-title);
  font-size: 1.18rem;
  line-height: 1.05;
  letter-spacing: 0.02em;
}

.brand__tagline {
  display: block;
  margin-top: 4px;
  overflow: hidden;
  font-family: var(--font-data);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.site-nav {
  display: flex;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 10px 13px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease);
}

.site-nav__link:hover {
  color: var(--color-text);
}

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

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 2px;
  height: 2px;
  background: var(--color-orange);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header__action-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 0.5rem 0 16px;
  border-left: 1px solid var(--color-line);
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-decoration: none;
}

.header__action-link:hover {
  color: var(--color-green);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 0;
  cursor: pointer;
  padding: 0.8rem 1.25rem;
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition:
    background 0.2s var(--ease),
    transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.button--primary {
  background: var(--color-orange);
  color: #fff;
  box-shadow: 0 4px 0 #983112;
}

.button--primary:hover {
  background: #ff8358;
  transform: translateY(-1px);
}

.button--primary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #983112;
}

.button--small {
  min-height: 36px;
  padding: 0.45rem 0.8rem;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.button--ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

.button--ghost:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
}

.nav-toggle__icon {
  position: relative;
  display: block;
  width: 22px;
  height: 14px;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__icon::before {
  top: 0;
  box-shadow: 0 6px 0 currentColor;
}

.nav-toggle__icon::after {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before {
  top: 6px;
  box-shadow: none;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after {
  top: 6px;
  transform: rotate(-45deg);
}

.nav-toggle__label {
  line-height: 1;
}

.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--color-line);
  background: var(--color-deep);
  color: var(--color-muted);
}

.site-footer__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: clamp(3.5rem, 8vw, 6rem) clamp(16px, 4vw, 40px) 5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.25fr;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.site-footer .brand {
  margin-right: 0;
  margin-bottom: 1.25rem;
}

.footer__about {
  max-width: 42em;
  font-size: 0.95rem;
  line-height: 1.8;
}

.footer__trust {
  margin-top: 1.5rem;
  padding: 1rem 1.125rem;
  border-left: 3px solid var(--color-green);
  background: rgba(57, 255, 20, 0.06);
  font-size: 0.85rem;
}

.footer__col-title {
  margin: 0 0 1rem;
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.footer__list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
}

.footer__list a {
  color: var(--color-muted);
  font-size: 0.92rem;
  text-decoration: none;
  transition:
    color 0.2s var(--ease),
    padding-left 0.2s var(--ease);
}

.footer__list a:hover {
  color: var(--color-orange);
  padding-left: 4px;
}

.footer__contact {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1rem;
}

.footer__contact dt {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-green);
}

.footer__contact dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer__service-note {
  margin-top: 1rem;
  font-size: 0.78rem;
  opacity: 0.78;
}

.site-footer__legal {
  max-width: var(--container);
  margin-inline: auto;
  padding: 1.1rem clamp(16px, 4vw, 40px) 5.5rem;
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1.2rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--color-muted);
}

.site-footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  list-style: none;
}

.site-footer__legal-links a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.site-footer__legal-links a:hover {
  color: var(--color-orange);
}

.site-footer__legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1rem;
}

.footer__icp {
  color: var(--color-muted);
}

.data-dock {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 70;
  background: rgba(7, 22, 51, 0.96);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.28);
}

.data-dock__bar {
  max-width: var(--container);
  margin-inline: auto;
  min-height: 56px;
  padding: 0.55rem clamp(12px, 4vw, 40px);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.data-dock__name {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-green);
}

.data-dock__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.55);
  animation: dockPulse 1.8s infinite;
}

.data-dock__desc {
  margin-left: auto;
  overflow: hidden;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.data-dock__toggle {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    border-color 0.2s var(--ease),
    background 0.2s var(--ease),
    color 0.2s var(--ease);
}

.data-dock__toggle:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.data-dock__toggle[aria-expanded="true"] {
  border-color: var(--color-orange);
  background: var(--color-orange);
  color: #fff;
}

.data-dock__toggle-label {
  font: inherit;
  color: inherit;
}

.data-dock__toggle-caret {
  display: inline-block;
  margin-left: 4px;
  font-size: 0.8rem;
  transition: transform 0.18s var(--ease);
}

.data-dock__toggle[aria-expanded="true"] .data-dock__toggle-caret {
  transform: rotate(180deg);
}

.data-dock__panel {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 16px clamp(12px, 4vw, 40px) 20px;
  background: var(--color-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 -14px 30px rgba(0, 0, 0, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition:
    opacity 0.18s var(--ease),
    transform 0.18s var(--ease),
    visibility 0.18s;
}

.data-dock[data-open] .data-dock__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dock-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-line);
  background: var(--color-main);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color 0.2s var(--ease),
    background 0.2s var(--ease);
}

.dock-card:hover {
  border-color: var(--color-green);
  background: var(--color-surface);
}

.dock-card__index {
  font-family: var(--font-data);
  font-size: 1.1rem;
  color: var(--color-orange);
}

.dock-card__body {
  display: grid;
  gap: 0.1rem;
}

.dock-card__body strong {
  font-size: 0.92rem;
}

.dock-card__body small {
  font-size: 0.74rem;
  color: var(--color-muted);
}

@keyframes dockPulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.5);
  }
  50% {
    opacity: 0.7;
    box-shadow: 0 0 0 6px rgba(57, 255, 20, 0);
  }
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.7rem;
  margin: 0;
  padding: 1rem 0 2rem;
  list-style: none;
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--color-muted);
}

.breadcrumbs li + li::before {
  content: "//";
  margin-right: 0.7rem;
  color: var(--color-orange);
  font-size: 0.7rem;
}

.breadcrumbs a {
  color: var(--color-muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--color-text);
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-gold);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 1.5rem;
}

.card {
  padding: 1.5rem;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  box-shadow: var(--shadow-hard);
  transition:
    transform 0.18s var(--ease),
    border-color 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}

.card:hover {
  transform: translate(-2px, -2px);
  border-color: rgba(255, 107, 53, 0.55);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.2);
}

.card__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-title);
  font-size: 1.15rem;
  line-height: 1.2;
}

.card__meta {
  margin-bottom: 0.75rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-gold);
}

.card__text {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.chapter {
  display: grid;
  grid-template-columns: minmax(64px, 120px) 1fr;
  gap: clamp(0.75rem, 2vw, 2rem);
  padding: 2rem 0;
  border-top: 1px solid var(--color-line);
}

.chapter__index {
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.22);
  font-family: var(--font-data);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  line-height: 0.9;
}

@supports not (-webkit-text-stroke: 1px black) {
  .chapter__index {
    color: rgba(255, 255, 255, 0.12);
  }
}

.chapter__body h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-title);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
}

.chapter__body p {
  max-width: 60ch;
  color: var(--color-muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid rgba(255, 107, 53, 0.42);
  background: rgba(255, 107, 53, 0.1);
  color: var(--color-orange);
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.tag--gold {
  border-color: rgba(255, 215, 0, 0.4);
  background: rgba(255, 215, 0, 0.08);
  color: var(--color-gold);
}

.tag--live {
  border-color: rgba(57, 255, 20, 0.4);
  background: rgba(57, 255, 20, 0.08);
  color: var(--color-green);
}

.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: tagPulse 1.6s infinite;
}

@keyframes tagPulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-deep) 100%);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 72% 24%, rgba(255, 107, 53, 0.2), transparent 52%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-repeat: no-repeat, repeat, repeat;
  background-size: auto, 24px 24px, 24px 24px;
}

.media-frame::after {
  content: "";
  position: absolute;
  right: 12%;
  bottom: 8%;
  width: 32%;
  aspect-ratio: 1;
  background: var(--color-orange);
  opacity: 0.7;
  clip-path: polygon(20% 0, 100% 0, 100% 80%, 0 100%);
  transform: skewX(-12deg);
  mix-blend-mode: screen;
}

.media-frame--green::after {
  background: var(--color-green);
}

.media-frame--gold::after {
  background: var(--color-gold);
  opacity: 0.9;
}

.media-frame--score::after {
  content: "3-1";
  inset: 0;
  right: auto;
  bottom: auto;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-overlay);
  color: var(--color-gold);
  font-family: var(--font-data);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 1;
  clip-path: none;
  transform: none;
  mix-blend-mode: normal;
}

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

::selection {
  background: var(--color-orange);
  color: #fff;
}

@media (max-width: 1024px) {
  .brand__tagline {
    display: none;
  }

  .header__action-link {
    display: none;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding-top: var(--header-h);
    background: var(--color-main);
    visibility: hidden;
    transform: translateY(-100%);
    transition:
      transform 0.28s var(--ease),
      visibility 0.28s;
  }

  .site-nav[data-open] {
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }

  .site-nav__link {
    padding: 14px 20px;
    font-size: 1.2rem;
  }

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

@media (max-width: 760px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .data-dock__desc {
    display: none;
  }

  .data-dock__bar {
    flex-wrap: wrap;
  }

  .data-dock__toggle {
    margin-left: auto;
  }

  .data-dock__panel {
    grid-template-columns: 1fr;
  }

  .chapter {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .chapter__index {
    font-size: 3rem;
  }
}

@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;
  }

  .tag--live::before,
  .data-dock__pulse {
    animation: none;
  }
}