/* ============================================================
   博奥体育 · 全站共享样式 /assets/site.css
   深靛蓝底 + 荧光青/炽橙数据高亮 + 玻璃层与实色层并置
   ============================================================ */

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

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

body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol, pre {
  margin: 0;
}
ul, ol { padding: 0; }
ul[class], ol[class] { list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink: #0A102E;
  --ink-2: #131A44;
  --cyan: #35F2D6;
  --orange: #FF6B2C;
  --grass: #3FBF7F;
  --clay: #B23A34;
  --clay-lift: #D9706A;
  --paper: #E8EDF7;
  --paper-dim: #D6DDEE;
  --muted: #8E9BC0;
  --amber: #FFC24B;

  --glass: rgba(255, 255, 255, 0.06);
  --glass-strong: rgba(255, 255, 255, 0.10);
  --line: rgba(142, 155, 192, 0.26);
  --line-soft: rgba(142, 155, 192, 0.13);

  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo,
    Consolas, "Liberation Mono", monospace;
  --font-narrow: "Barlow Condensed", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;

  --fs-micro: 0.6875rem;
  --fs-label: 0.75rem;
  --fs-sm: 0.8125rem;
  --fs-base: 1.0625rem;
  --fs-lg: 1.3125rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-hero: clamp(2.375rem, 6vw, 6rem);

  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-5: 48px;
  --sp-6: 72px;
  --sp-7: 104px;

  --gutter: clamp(16px, 4vw, 48px);
  --rail-w: 1440px;
  --header-h: 92px;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

@media (max-width: 900px) {
  :root { --header-h: 68px; }
}

/* ---------- 3. Base ---------- */
body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--ink);
  background-image:
    radial-gradient(900px 520px at 10% -6%, rgba(53, 242, 214, 0.085), transparent 62%),
    radial-gradient(820px 480px at 94% 4%, rgba(255, 107, 44, 0.085), transparent 60%),
    radial-gradient(760px 620px at 50% 112%, rgba(63, 191, 127, 0.055), transparent 66%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 85;
  background: rgba(4, 7, 20, 0.7);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
}
body.is-nav-open::before { opacity: 1; visibility: visible; }
body.is-nav-open { overflow: hidden; }

h1, h2, h3, h4 { line-height: 1.18; letter-spacing: -0.015em; font-weight: 700; }
h1 { font-size: clamp(1.9rem, 3.4vw, 3rem); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }

p { max-width: 68ch; }

strong { font-weight: 600; color: #FFFFFF; }

::selection { background: rgba(53, 242, 214, 0.28); color: #FFFFFF; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 1px;
}

[id] { scroll-margin-top: calc(var(--header-h) + 16px); }

/* ---------- 4. Layout ---------- */
.rail,
.header-rail,
.footer-rail,
.footer-legal-rail {
  width: 100%;
  max-width: var(--rail-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--sp-3);
}
.grid-12 > .col-3 { grid-column: span 3; }
.grid-12 > .col-4 { grid-column: span 4; }
.grid-12 > .col-5 { grid-column: span 5; }
.grid-12 > .col-6 { grid-column: span 6; }
.grid-12 > .col-7 { grid-column: span 7; }
.grid-12 > .col-8 { grid-column: span 8; }
.grid-12 > .col-12 { grid-column: span 12; }

.stack > * + * { margin-top: var(--sp-3); }

.band {
  position: relative;
  background: var(--ink-2);
  border-block: 1px solid var(--line);
  padding-block: var(--sp-5);
}

.slant-card { clip-path: polygon(0 2.5%, 100% 0, 100% 97.5%, 0 100%); }
.tilt { transform: rotate(-0.7deg); }
.tilt--right { transform: rotate(0.7deg); }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
  transition: transform 0.22s var(--ease), background 0.22s var(--ease),
    color 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}
.btn--primary {
  background: var(--orange);
  color: #14162B;
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 107, 44, 0.3);
}
.btn--ghost {
  background: var(--glass);
  border-color: var(--line);
  color: var(--paper);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}
.btn--cyan {
  background: var(--cyan);
  color: #06122A;
}
.btn--cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(53, 242, 214, 0.26);
}

/* ---------- 6. Frames / rules / heads ---------- */
.frame {
  position: relative;
  padding: clamp(20px, 3vw, 40px);
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px) saturate(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.1);
}
.frame::before,
.frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--cyan);
  pointer-events: none;
}
.frame::before { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.frame::after { right: -2px; bottom: -2px; border-left: 0; border-top: 0; }

.tick-rule {
  position: relative;
  height: 14px;
  border-bottom: 1px solid var(--line-soft);
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0 1px,
    transparent 1px 16px
  );
  background-repeat: repeat-x;
  background-size: 100% 7px;
  background-position: left bottom;
}

.sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-2) var(--sp-3);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--sp-4);
}
.sec-no {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-bottom: 8px;
}
.sec-title {
  font-size: clamp(1.5rem, 2.6vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.sec-note {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 7. Tags & data ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-transform: uppercase;
  white-space: nowrap;
}
.tag--football {
  color: var(--grass);
  background: rgba(63, 191, 127, 0.1);
  border: 1px solid rgba(63, 191, 127, 0.42);
}
.tag--basketball {
  color: var(--clay-lift);
  background: rgba(178, 58, 52, 0.16);
  border: 1px solid rgba(178, 58, 52, 0.5);
}
.tag--grade {
  color: var(--amber);
  background: rgba(255, 194, 75, 0.13);
  border: 1px solid rgba(255, 194, 75, 0.34);
}
.tag--live {
  color: var(--cyan);
  background: rgba(53, 242, 214, 0.12);
  border: 1px solid rgba(53, 242, 214, 0.36);
}
.tag--plain {
  color: var(--muted);
  border: 1px solid var(--line);
}

.figure,
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.figure { color: var(--paper); }
.figure--cyan { color: var(--cyan); }
.figure--orange { color: var(--orange); }
.figure--amber { color: var(--amber); }
.figure-unit {
  margin-left: 4px;
  font-size: 0.62em;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 8. Panels / index / media ---------- */
.panel {
  padding: var(--sp-3);
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.panel--solid {
  background: var(--ink-2);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--sp-2);
}
.index-grid > * {
  padding: 14px 16px;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}
.index-grid > *:hover {
  border-color: rgba(53, 242, 214, 0.4);
  transform: translateY(-3px);
}

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background: linear-gradient(142deg, var(--ink-2), #0b1136 70%);
}
.media-frame img,
.media-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.03) 0 1px,
    transparent 1px 3px
  );
  mix-blend-mode: overlay;
}
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--fill { aspect-ratio: auto; height: 100%; }

/* ---------- 9. Breadcrumb & prose ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--muted);
}
.breadcrumb a { transition: color 0.2s var(--ease); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before {
  content: "/";
  color: rgba(142, 155, 192, 0.45);
}

.prose {
  max-width: 68ch;
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--paper-dim);
}
.prose h2 {
  margin-block: 1.6em 0.6em;
  font-size: var(--fs-xl);
  color: var(--paper);
}
.prose h3 {
  margin-block: 1.4em 0.5em;
  font-size: var(--fs-lg);
  color: var(--paper);
}
.prose p + p { margin-top: 1.1em; }
.prose ul, .prose ol { margin-top: 1em; padding-left: 1.2em; }
.prose li + li { margin-top: 0.5em; }
.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(53, 242, 214, 0.4);
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 1px 5px;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
}

/* ---------- 10. Injected widgets ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  pointer-events: none;
}

.to-top {
  position: fixed;
  right: clamp(14px, 3vw, 34px);
  bottom: clamp(14px, 3vw, 34px);
  z-index: 88;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(19, 26, 68, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.to-top.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.to-top:hover { border-color: var(--cyan); color: var(--cyan); }
.to-top-arrow {
  width: 8px;
  height: 8px;
  border-left: 1.5px solid currentColor;
  border-top: 1.5px solid currentColor;
  transform: rotate(45deg) translate(1px, 1px);
}

.reveal-init {
  opacity: 0;
  transform: translateY(16px);
}
.reveal-init.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -90px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 2px;
  background: var(--cyan);
  color: #06122A;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 11. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: linear-gradient(
    180deg,
    rgba(10, 16, 46, 0.97) 0%,
    rgba(10, 16, 46, 0.9) 72%,
    rgba(10, 16, 46, 0.78) 100%
  );
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--line-soft);
}
.site-header::after {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--cyan) 0 16%,
    transparent 16% 18%,
    var(--orange) 18% 32%,
    transparent 32% 100%
  );
  opacity: 0.72;
}

.header-rail {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-4);
  padding-block: 16px 12px;
  transition: padding-block 0.3s var(--ease);
}
.site-header.is-compact .header-rail { padding-block: 8px 6px; }

/* brand cluster */
.brand-cluster {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 0 0 auto;
  min-width: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
  color: var(--paper);
}
.brand-glyph {
  flex: 0 0 auto;
  width: 8px;
  height: 22px;
  background: linear-gradient(180deg, var(--cyan) 0 58%, var(--orange) 58% 100%);
  box-shadow: 0 0 18px rgba(53, 242, 214, 0.5);
}
.brand-name {
  font-family: var(--font-narrow);
  font-size: clamp(1.25rem, 2.1vw, 1.625rem);
  font-weight: 800;
  letter-spacing: -0.015em;
}

.season-lamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  max-width: none;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.09em;
  line-height: 1.3;
  color: var(--muted);
}
.lamp-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 242, 214, 0.14);
  animation: lamp-pulse 3.2s var(--ease) infinite;
}
@keyframes lamp-pulse {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}
.lamp-phase { color: var(--paper); }
.lamp-sep { color: rgba(142, 155, 192, 0.45); }
.lamp-grade {
  padding: 1px 6px;
  border: 1px solid rgba(255, 194, 75, 0.4);
  border-radius: 2px;
  color: var(--amber);
  letter-spacing: 0.12em;
}

/* right side: utils + nav */
.header-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
}
.header-utils {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  color: var(--muted);
}
.header-utils a {
  border-bottom: 1px solid transparent;
  padding-block: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.header-utils a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.site-header.is-compact .header-utils,
.site-header.is-compact .season-lamp { display: none; }

.header-nav { display: flex; }
.nav-list {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: clamp(12px, 1.7vw, 28px);
}
.nav-list a {
  position: relative;
  display: inline-block;
  padding-bottom: 7px;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.22s var(--ease);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.26s var(--ease);
}
.nav-list a:hover { color: var(--paper); }
.nav-list a:hover::after { transform: scaleX(1); }
.nav-list a[aria-current="page"] { color: var(--paper); }
.nav-list a[aria-current="page"]::after { transform: scaleX(1); }

/* toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--glass);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-toggle-bars {
  display: grid;
  gap: 4px;
  width: 16px;
}
.nav-toggle-bars span {
  display: block;
  height: 1.5px;
  background: var(--cyan);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[data-open="true"] .nav-toggle-bars span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}
.nav-toggle[data-open="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle[data-open="true"] .nav-toggle-bars span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* ---------- 12. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: var(--sp-7);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  opacity: 0.6;
  background: linear-gradient(
    90deg,
    transparent 0 6%,
    var(--cyan) 6% 18%,
    transparent 18% 34%,
    var(--orange) 34% 46%,
    transparent 46% 70%,
    var(--grass) 70% 80%,
    transparent 80%
  );
}

.footer-rail {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 3fr);
  gap: var(--sp-5);
  padding-block: var(--sp-6) var(--sp-5);
}

.footer-brand { display: flex; flex-direction: column; gap: 10px; }
.footer-mark {
  font-family: var(--font-narrow);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--paper);
  line-height: 1;
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
}
.footer-scope {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  color: var(--muted);
  max-width: none;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-4);
}

.footer-col-title {
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}

.footer-links { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer-links a {
  font-size: 0.9375rem;
  color: var(--paper-dim);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.footer-links a:hover {
  color: var(--cyan);
  border-bottom-color: rgba(53, 242, 214, 0.5);
}

.footer-links--contact { gap: 12px; }
.footer-links--contact li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 0.875rem;
  line-height: 1.6;
}
.footer-key {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  color: var(--muted);
  padding-top: 3px;
}
.footer-value { color: var(--paper-dim); word-break: break-word; }

.footer-note {
  margin-top: 14px;
  max-width: 34ch;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--muted);
}

.footer-legal {
  border-top: 1px solid var(--line-soft);
  background: var(--ink);
}
.footer-legal-rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.07em;
  color: var(--muted);
}
.footer-copy, .footer-icp { max-width: none; }
.footer-icp { color: var(--paper-dim); }
.footer-legal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-left: auto;
}
.footer-legal-nav a {
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.footer-legal-nav a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 13. Responsive ---------- */
@media (max-width: 1100px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .grid-12 > .col-3 { grid-column: span 3; }
  .grid-12 > .col-4 { grid-column: span 3; }
  .grid-12 > .col-5 { grid-column: span 6; }
  .grid-12 > .col-6 { grid-column: span 6; }
  .grid-12 > .col-7 { grid-column: span 6; }
  .grid-12 > .col-8 { grid-column: span 6; }

  .footer-rail { grid-template-columns: 1fr; gap: var(--sp-4); }
}

@media (max-width: 900px) {
  .header-rail {
    align-items: center;
    gap: 12px;
    padding-block: 12px 10px;
  }
  .site-header.is-compact .header-rail { padding-block: 8px; }

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

  .header-side {
    position: fixed;
    top: var(--header-h);
    right: 0;
    bottom: 0;
    z-index: 95;
    width: min(88vw, 400px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 26px;
    padding: 26px var(--gutter) 52px;
    background: var(--ink-2);
    border-left: 1px solid var(--line);
    box-shadow: -30px 0 70px rgba(0, 0, 0, 0.55);
    overflow-y: auto;
    overscroll-behavior: contain;
    visibility: hidden;
    transform: translateX(103%);
    transition: transform 0.36s var(--ease), visibility 0.36s var(--ease);
  }
  .header-side[data-open="true"] {
    visibility: visible;
    transform: translateX(0);
  }

  .header-utils {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    font-size: var(--fs-label);
  }
  .header-utils a { padding-block: 4px; }

  .header-nav { width: 100%; }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-list li { border-bottom: 1px solid var(--line-soft); }
  .nav-list a {
    display: flex;
    align-items: center;
    min-height: 52px;
    padding: 14px 0;
    font-size: 1.0625rem;
    color: var(--paper);
  }
  .nav-list a::after { display: none; }
  .nav-list a:hover { color: var(--cyan); }
  .nav-list a[aria-current="page"] {
    color: var(--cyan);
    box-shadow: inset 3px 0 0 0 var(--cyan);
    padding-left: 14px;
  }

  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-4) var(--sp-3); }
  .footer-legal-nav { margin-left: 0; width: 100%; }
}

@media (max-width: 680px) {
  .grid-12 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-2); }
  .grid-12 > .col-3,
  .grid-12 > .col-4,
  .grid-12 > .col-5,
  .grid-12 > .col-6,
  .grid-12 > .col-7,
  .grid-12 > .col-8,
  .grid-12 > .col-12 { grid-column: span 2; }

  .footer-cols { grid-template-columns: 1fr; }
  .index-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .to-top { padding: 9px 12px; }
  .to-top-label { display: none; }
}

@media (max-width: 480px) {
  .nav-toggle-text { display: none; }
  .season-lamp { font-size: 0.625rem; }
  .header-utils { display: none; }
  .header-side { gap: 18px; }
}

/* ---------- 14. Motion preferences ---------- */
@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;
  }
  .lamp-dot { animation: none; opacity: 1; }
  .reveal-init { opacity: 1; transform: none; }
  .tilt, .tilt--right { transform: none; }
}

@media print {
  .site-header, .site-footer, .to-top, .scroll-progress { display: none; }
  body { background: #FFFFFF; color: #101010; }
}