/* ==========================================================================
   半岛赛场 · 共享外壳 /assets/site.css
   夜场墨绿 · 信号橙 · 电光青 · 沙金
   ========================================================================== */

/* ---------- 1. RESET ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, figcaption, blockquote, dl, dt, dd {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

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

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

table { border-collapse: collapse; width: 100%; }

[hidden] { display: none !important; }

/* ---------- 2. TOKENS ---------- */
:root {
  --ink: #061A16;
  --deep: #0B2B24;
  --tactical: #103A30;
  --void: #020F0C;
  --signal: #FF6A2B;
  --cyan: #3FE0D0;
  --sand: #D9B56B;
  --fog: #E8F1EC;
  --moss: #8FA79E;
  --ember: #B8471A;

  --font-display: "Oswald", "Barlow Condensed", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur: 160ms;
  --gutter: 24px;
  --maxw: 1440px;
  --frame: 2px;
  --shadow-hard: 8px 8px 0 rgba(2, 15, 12, 0.72);
}

/* ---------- 3. BASE TYPE ---------- */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(63, 224, 208, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63, 224, 208, 0.035) 1px, transparent 1px);
  background-size: 120px 120px;
  color: var(--fog);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--fog);
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 6vw, 5.5rem); }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.75rem); }
h3 { font-size: clamp(1.15rem, 1.9vw, 1.6rem); }
h4 { font-size: clamp(1rem, 1.4vw, 1.2rem); }

strong, b { font-weight: 700; color: var(--fog); }

code, kbd, samp, .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.92em;
}

::selection {
  background: var(--signal);
  color: var(--ink);
}

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

/* ---------- 4. A11Y UTILITIES ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 999;
  display: inline-block;
  padding: 10px 18px;
  background: var(--signal);
  color: var(--ink);
  border: var(--frame) solid var(--void);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: top var(--dur) var(--ease);
}

.skip-link:focus {
  top: 12px;
  color: var(--ink);
}

/* ---------- 5. LAYOUT ---------- */
.wrap {
  width: min(100%, var(--maxw));
  margin-inline: auto;
  padding-inline: clamp(16px, 2.5vw, 32px);
}

.shell {
  display: grid;
  grid-template-columns: repeat(16, minmax(0, 1fr));
  gap: var(--gutter);
}

.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-12 { grid-column: span 12; }
.col-full { grid-column: 1 / -1; }

.prose { max-width: 72ch; }

.prose > * + * { margin-top: 1.15em; }

.prose p { color: var(--fog); font-size: 16px; }

.prose h2 { margin-top: 2em; }
.prose h3 { margin-top: 1.6em; }

.prose ul,
.prose ol {
  padding-left: 1.1em;
  color: var(--fog);
}

.prose ul li { list-style: square; list-style-position: outside; margin-left: 0.4em; }
.prose ol li { list-style: decimal; list-style-position: outside; margin-left: 0.4em; }

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--tactical);
  transition: color var(--dur) var(--ease), text-decoration-color var(--dur) var(--ease);
}

.prose a:hover {
  color: var(--fog);
  text-decoration-color: var(--cyan);
}

/* ---------- 6. BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 20px;
  border: var(--frame) solid var(--tactical);
  background: var(--deep);
  color: var(--fog);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  line-height: 1.2;
  white-space: nowrap;
  transition:
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn:active { transform: translateY(1px); }

.btn--signal {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
  box-shadow: 5px 5px 0 var(--void);
}

.btn--signal:hover {
  background: var(--signal);
  border-color: var(--sand);
  color: var(--ink);
  box-shadow: 7px 7px 0 var(--void);
}

.btn--signal:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--void);
}

.btn--ghost {
  background: transparent;
  border-color: var(--tactical);
  color: var(--fog);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--sm {
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 7. FRAMES & MEDIA ---------- */
.frame {
  position: relative;
  border: var(--frame) solid var(--tactical);
  background: var(--deep);
  padding: clamp(18px, 2.4vw, 32px);
}

.frame::before,
.frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
}

.frame::before {
  top: -2px;
  left: -2px;
  border-top: var(--frame) solid var(--sand);
  border-left: var(--frame) solid var(--sand);
}

.frame::after {
  bottom: -2px;
  right: -2px;
  border-bottom: var(--frame) solid var(--sand);
  border-right: var(--frame) solid var(--sand);
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--void);
  border: var(--frame) solid var(--tactical);
  aspect-ratio: 16 / 10;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.22) contrast(1.06);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  background: var(--void);
  border-top: 1px solid var(--tactical);
  border-right: 1px solid var(--tactical);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.5;
}

/* ---------- 8. CRUMBS & TAGS ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.crumbs a {
  color: var(--moss);
  transition: color var(--dur) var(--ease);
}

.crumbs a:hover { color: var(--cyan); }

.crumbs__sep { color: var(--tactical); }

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

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--tactical);
  background: rgba(63, 224, 208, 0.06);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.7;
}

/* ---------- 9. FILTER KIT ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  border: var(--frame) solid var(--tactical);
  background: transparent;
  padding: 6px 14px;
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.5;
  transition:
    transform 80ms var(--ease),
    background var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.filter-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.filter-btn:active { transform: translateY(1px); }

.filter-btn[aria-pressed="true"] {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
}

.filter-count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sand);
}

/* ---------- 10. HEADER ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ink);
  border-bottom: var(--frame) solid var(--tactical);
  box-shadow: 0 2px 0 var(--void);
}

.site-header::before {
  content: "";
  display: block;
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--sand) 0 14px,
    transparent 14px 48px
  );
  opacity: 0.55;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 24px);
  width: min(100%, var(--maxw));
  margin-inline: auto;
  padding: 12px clamp(16px, 2.5vw, 32px);
}

.header-left {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 22px);
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--fog);
  transition: color var(--dur) var(--ease);
}

.brand:hover { color: var(--fog); }

.brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  background: var(--void);
  border: var(--frame) solid var(--cyan);
}

.brand__mark::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: var(--frame) solid var(--signal);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

.brand__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.season-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border: 1px solid var(--tactical);
  background: var(--deep);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
  white-space: nowrap;
}

.season-chip__dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(255, 106, 43, 0.18);
}

.season-chip__text { color: var(--cyan); }

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 40px;
  margin-left: auto;
  background: var(--deep);
  border: var(--frame) solid var(--tactical);
  transition: border-color var(--dur) var(--ease);
}

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

.nav-toggle[aria-expanded="true"] { border-color: var(--signal); }

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--fog);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

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

.site-nav__list {
  display: flex;
  align-items: center;
}

.site-nav__item { position: relative; }

.site-nav__item + .site-nav__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 12px;
  background: var(--tactical);
  transform: translateY(-50%);
}

.site-nav__link {
  display: inline-block;
  padding: 6px 14px;
  border-bottom: var(--frame) solid transparent;
  color: var(--moss);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.05em;
  line-height: 1.6;
  transition:
    color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--fog);
  border-bottom-color: var(--cyan);
}

.site-nav__link[aria-current="page"] {
  background: var(--signal);
  border-bottom-color: var(--signal);
  color: var(--ink);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bookmark-dock {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--void);
  border: var(--frame) solid var(--tactical);
  color: var(--fog);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.bookmark-dock:hover {
  border-color: var(--sand);
  color: var(--sand);
}

.bookmark-dock__icon {
  flex: 0 0 auto;
  width: 9px;
  height: 13px;
  background: var(--sand);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 68%, 0 100%);
}

.bookmark-dock__label { color: var(--moss); }

.bookmark-dock__count {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--sand);
  font-size: 12px;
}

/* ---------- 11. FOOTER ---------- */
.site-footer {
  margin-top: clamp(48px, 6vw, 96px);
  padding-bottom: 26px;
  background: var(--void);
  border-top: var(--frame) solid var(--tactical);
  color: var(--fog);
}

.footer-scale {
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--sand) 0 14px,
    transparent 14px 44px
  );
  opacity: 0.55;
}

.footer-inner {
  width: min(100%, var(--maxw));
  margin-inline: auto;
  padding-inline: clamp(16px, 2.5vw, 32px);
}

.footer-grid {
  display: grid;
  grid-template-columns:
    minmax(230px, 1.5fr)
    repeat(3, minmax(110px, 0.7fr))
    minmax(220px, 1.2fr);
  gap: clamp(20px, 2.4vw, 40px);
  padding-block: clamp(36px, 4vw, 60px) clamp(26px, 3vw, 42px);
}

.brand--footer .brand__name { font-size: 22px; }

.footer-summary {
  margin-top: 14px;
  max-width: 34ch;
  color: var(--moss);
  font-size: 14px;
  line-height: 1.8;
}

.footer-col__title {
  margin-bottom: 14px;
  color: var(--sand);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.2em;
  line-height: 1.6;
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col__link {
  display: inline-block;
  color: var(--moss);
  font-size: 14px;
  line-height: 1.7;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.footer-col__link:hover {
  color: var(--cyan);
  padding-left: 6px;
}

.footer-contact__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
}

.footer-contact__label {
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.6;
}

.footer-contact__value {
  color: var(--fog);
  font-size: 14px;
  line-height: 1.7;
  word-break: break-word;
}

.footer-contact__value--num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
}

.footer-contact__note {
  margin-top: 14px;
  padding-left: 10px;
  border-left: var(--frame) solid var(--tactical);
  color: var(--moss);
  font-size: 12px;
  line-height: 1.75;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  padding-top: 20px;
  border-top: 1px solid var(--tactical);
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.8;
}

.footer-base__copy { margin-right: auto; }

.footer-base__link {
  color: var(--moss);
  transition: color var(--dur) var(--ease);
}

.footer-base__link:hover { color: var(--cyan); }

.footer-base__legal { color: var(--moss); }

/* ---------- 12. RESPONSIVE ---------- */
@media (max-width: 1240px) {
  .season-chip { display: none; }
}

@media (max-width: 1080px) {
  .site-nav__link {
    padding: 6px 9px;
    font-size: 14px;
    letter-spacing: 0.03em;
  }
  .btn--header {
    padding: 8px 12px;
    font-size: 12px;
  }
  .footer-grid {
    grid-template-columns: minmax(220px, 1.2fr) repeat(3, minmax(100px, 0.8fr));
  }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    margin-left: 0;
    padding: 12px clamp(16px, 2.5vw, 32px) 20px;
    background: var(--deep);
    border-top: var(--frame) solid var(--tactical);
    border-bottom: var(--frame) solid var(--tactical);
    box-shadow: 0 18px 0 -14px var(--void);
  }

  .site-nav[data-open="true"] { display: block; }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-nav__item + .site-nav__item::before { display: none; }

  .site-nav__link {
    display: block;
    padding: 14px 12px;
    border-bottom: 1px solid var(--tactical);
    font-size: 17px;
    letter-spacing: 0.05em;
  }

  .site-nav__link[aria-current="page"] {
    background: var(--signal);
    border-bottom-color: var(--signal);
    color: var(--ink);
  }

  .header-tools { margin-left: 0; }
  .btn--header { display: none; }

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

  .col-3, .col-4, .col-6, .col-8, .col-9, .col-12 {
    grid-column: 1 / -1;
  }

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

  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  body { font-size: 15px; }

  .brand__mark { width: 28px; height: 28px; }
  .brand__name { font-size: 17px; letter-spacing: 0.1em; }
  .brand__tag { font-size: 9px; letter-spacing: 0.1em; }

  .bookmark-dock__label { display: none; }

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

  .footer-base { font-size: 11px; }
  .footer-base__copy { margin-right: 0; width: 100%; }
}

/* ---------- 13. REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .btn:active,
  .btn--signal:active,
  .filter-btn:active,
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar {
    transform: none;
  }
}