/* ==========================================================================
   星空体育 · 共享样式 /assets/site.css
   深浅分区 → 星图底噪 → 双层头部 → 星图导航 → 墨黑页脚 → 通用组件
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: clamp(96px, 14vh, 150px);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
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%; }
i { font-style: normal; }

/* ---------- 2. 变量 ---------- */
:root {
  --sky-deep: #0B1B3A;
  --sky-deep-2: #0F2350;
  --sky-gold: #F5C542;
  --sky-violet: #7B4DFF;
  --sky-ice: #5BC0EB;
  --sky-paper: #F3EDE2;
  --sky-ink: #070C18;
  --sky-grey: #8A94A8;
  --sky-white: #FFFFFF;
  --sky-mint: #2ED3B7;
  --sky-coral: #FF6B6B;
  --sky-edge: #D8CBB8;

  --sky-font-display: "YouSheBiaoTiHei", "优设标题黑", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
  --sky-font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --sky-font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --sky-gutter: clamp(16px, 4.5vw, 64px);
  --sky-max: 1320px;
  --sky-line: rgba(245, 197, 66, 0.28);
  --sky-line-cool: rgba(91, 192, 235, 0.26);
  --sky-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 3. 基础排版与星图底噪 ---------- */
body {
  font-family: var(--sky-font-body);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.84);
  background-color: var(--sky-deep);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.50) 0 1px, transparent 1.6px),
    radial-gradient(circle at 78% 8%, rgba(245, 197, 66, 0.55) 0 1px, transparent 1.6px),
    radial-gradient(circle at 46% 62%, rgba(91, 192, 235, 0.45) 0 1px, transparent 1.6px),
    radial-gradient(circle at 88% 74%, rgba(255, 255, 255, 0.34) 0 1px, transparent 1.6px);
  background-size: 340px 300px, 460px 420px, 280px 260px, 520px 480px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--sky-font-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--sky-white);
  text-wrap: balance;
}

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

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

/* ---------- 4. 通用原子 ---------- */
.sky-container {
  width: 100%;
  max-width: var(--sky-max);
  margin-inline: auto;
  padding-inline: var(--sky-gutter);
}

.sky-skip {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 400;
  padding: 10px 18px;
  background: var(--sky-gold);
  color: var(--sky-ink);
  font-family: var(--sky-font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 2px;
  transform: translateY(-200%);
  transition: transform 0.2s var(--sky-ease);
}
.sky-skip:focus,
.sky-skip:focus-visible { transform: translateY(0); }

.sky-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sky-mint);
  box-shadow: 0 0 0 3px rgba(46, 211, 183, 0.16);
  flex: none;
}

.sky-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sky-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--sky-gold);
}
.sky-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.85;
  flex: none;
}

.sky-display {
  font-family: var(--sky-font-display);
  font-size: clamp(48px, 8vw, 136px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--sky-white);
}

.sky-lede {
  max-width: 44em;
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.72);
}

.sky-mono,
.sky-data { font-family: var(--sky-font-mono); font-variant-numeric: tabular-nums; }
.sky-mono { font-size: 13px; letter-spacing: 0.02em; }
.sky-data {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--sky-gold);
}

.sky-link {
  color: var(--sky-ice);
  border-bottom: 1px solid rgba(91, 192, 235, 0.45);
  transition: border-color 0.2s var(--sky-ease), color 0.2s var(--sky-ease);
}
.sky-link:hover { border-bottom-color: currentColor; color: var(--sky-white); }

.sky-hr {
  border: 0;
  height: 1px;
  margin-block: clamp(24px, 4vw, 48px);
  background: linear-gradient(90deg, rgba(245, 197, 66, 0.45), rgba(91, 192, 235, 0.25), transparent);
}

.sky-note {
  padding: 10px 0 10px 16px;
  border-left: 2px solid var(--sky-gold);
  background: linear-gradient(90deg, rgba(245, 197, 66, 0.09), transparent 72%);
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
}

.sky-track {
  position: absolute;
  left: 0;
  top: 0;
  width: 62%;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(123, 77, 255, 0), rgba(123, 77, 255, 0.65), rgba(245, 197, 66, 0.55), rgba(245, 197, 66, 0));
  transform: rotate(-14deg);
  transform-origin: left center;
}

/* ---------- 5. 头部：双层信息导航 ---------- */
.sky-header {
  position: sticky;
  top: 0;
  z-index: 120;
  color: var(--sky-white);
  background: rgba(11, 27, 58, 0.95);
  border-bottom: 1px solid var(--sky-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.sky-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}
.sky-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--sky-violet), var(--sky-ice) 55%, var(--sky-gold));
  transition: transform 0.12s linear;
}

.sky-header__beam {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.sky-header__beam-inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
  min-height: 52px;
  flex-wrap: wrap;
}

.sky-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-block: 6px;
}
.sky-header__mark {
  width: 16px;
  height: 16px;
  flex: none;
  background: var(--sky-gold);
  clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
  box-shadow: 0 0 14px rgba(245, 197, 66, 0.65);
}
.sky-header__name {
  font-family: var(--sky-font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--sky-white);
}

.sky-header__badge {
  padding: 2px 7px;
  font-family: var(--sky-font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--sky-ice);
  border: 1px solid rgba(91, 192, 235, 0.45);
  border-radius: 1px;
  white-space: nowrap;
}

.sky-header__strap {
  margin-left: auto;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.6);
  white-space: nowrap;
}

.sky-header__hours {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-left: clamp(10px, 2vw, 26px);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  font-family: var(--sky-font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.78);
  white-space: nowrap;
}

.sky-header__nav-tier { position: relative; }

.sky-header__nav-inner {
  display: flex;
  align-items: center;
  gap: clamp(8px, 2vw, 26px);
  min-height: 64px;
}

.sky-nav { flex: 1 1 auto; min-width: 0; }

.sky-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.4vw, 22px);
  flex-wrap: nowrap;
}

.sky-nav__item { position: relative; }

.sky-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.8);
  white-space: nowrap;
  transition: color 0.2s var(--sky-ease);
}

.sky-nav__index {
  font-family: var(--sky-font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--sky-grey);
  transition: color 0.2s var(--sky-ease);
}

.sky-nav__link::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: var(--sky-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.26s var(--sky-ease);
}

.sky-nav__link:hover,
.sky-nav__link:focus-visible { color: var(--sky-white); }
.sky-nav__link:hover .sky-nav__index,
.sky-nav__link:focus-visible .sky-nav__index { color: var(--sky-gold); }

.sky-nav__link:hover::before,
.sky-nav__link:focus-visible::before,
.sky-nav__link[aria-current="page"]::before { transform: scaleX(1); }

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

/* 悬停/聚焦浮出的栏目说明卡 */
.sky-nav__link::after {
  content: attr(data-note);
  position: absolute;
  left: -6px;
  top: calc(100% + 6px);
  z-index: 40;
  width: max-content;
  min-width: 150px;
  max-width: 240px;
  padding: 9px 12px;
  font-family: var(--sky-font-body);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.02em;
  white-space: normal;
  color: var(--sky-paper);
  background: var(--sky-ink);
  border: 1px solid rgba(123, 77, 255, 0.55);
  border-left: 2px solid var(--sky-gold);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.2s var(--sky-ease), transform 0.2s var(--sky-ease);
}
.sky-nav__item:last-child .sky-nav__link::after { left: auto; right: -6px; }

.sky-nav__link:hover::after,
.sky-nav__link:focus-visible::after { opacity: 1; transform: translateY(0); }

/* 移动端抽屉按钮 */
.sky-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--sky-line);
  border-radius: 2px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--sky-white);
  transition: border-color 0.2s var(--sky-ease), color 0.2s var(--sky-ease);
}
.sky-nav-toggle:hover { border-color: var(--sky-gold); color: var(--sky-gold); }

.sky-nav-toggle__bars { display: grid; gap: 4px; width: 18px; flex: none; }
.sky-nav-toggle__bars i {
  display: block;
  height: 2px;
  background: var(--sky-gold);
  transition: transform 0.22s var(--sky-ease), opacity 0.22s var(--sky-ease);
}
.sky-nav-toggle[aria-expanded="true"] .sky-nav-toggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.sky-nav-toggle[aria-expanded="true"] .sky-nav-toggle__bars i:nth-child(2) { opacity: 0; }
.sky-nav-toggle[aria-expanded="true"] .sky-nav-toggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.sky-header__cta { flex: none; }

/* ---------- 6. 页脚 ---------- */
.sky-footer {
  position: relative;
  overflow: hidden;
  background: var(--sky-ink);
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid var(--sky-line);
}
.sky-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    radial-gradient(circle at 15% 22%, rgba(255, 255, 255, 0.5) 0 1px, transparent 1.6px),
    radial-gradient(circle at 68% 12%, rgba(245, 197, 66, 0.5) 0 1px, transparent 1.6px),
    radial-gradient(circle at 42% 78%, rgba(91, 192, 235, 0.42) 0 1px, transparent 1.6px);
  background-size: 300px 280px, 440px 400px, 360px 340px;
}

.sky-footer__orbit {
  position: absolute;
  right: -140px;
  top: -160px;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  border: 1px solid rgba(123, 77, 255, 0.35);
  pointer-events: none;
}
.sky-footer__orbit::before {
  content: "";
  position: absolute;
  inset: 58px;
  border-radius: 50%;
  border: 1px dashed rgba(91, 192, 235, 0.28);
}
.sky-footer__orbit::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  margin: -5px;
  border-radius: 50%;
  background: var(--sky-gold);
  box-shadow: 0 0 18px 5px rgba(245, 197, 66, 0.45);
}

.sky-footer__inner {
  position: relative;
  padding-block: clamp(40px, 6vw, 76px) 0;
}

.sky-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
  gap: clamp(24px, 4vw, 56px);
}

.sky-footer__brand { display: grid; gap: 12px; align-content: start; }

.sky-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sky-font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--sky-white);
}
.sky-footer__mark {
  width: 14px;
  height: 14px;
  flex: none;
  background: var(--sky-gold);
  clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
  box-shadow: 0 0 12px rgba(245, 197, 66, 0.6);
}
.sky-footer__name { color: var(--sky-white); }

.sky-footer__tagline {
  max-width: 20em;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.62);
}

.sky-footer__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sky-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sky-ice);
}

.sky-footer__heading {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--sky-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--sky-gold);
}

.sky-footer__list { display: grid; gap: 9px; }

.sky-footer__link {
  display: inline-block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--sky-ease), border-color 0.2s var(--sky-ease);
}
.sky-footer__link:hover,
.sky-footer__link:focus-visible { color: var(--sky-gold); border-bottom-color: currentColor; }

.sky-footer__list--contact { gap: 12px; }

.sky-footer__contact { display: grid; gap: 2px; }
.sky-footer__label {
  font-family: var(--sky-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--sky-grey);
}
.sky-footer__value {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.86);
  word-break: break-word;
}

.sky-footer__hint {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 2px solid rgba(245, 197, 66, 0.65);
  font-size: 12.5px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.55);
}

.sky-footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: clamp(32px, 5vw, 56px);
  padding-block: 18px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--sky-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sky-grey);
}
.sky-footer__legal,
.sky-footer__icp { margin: 0; }

/* ---------- 7. 按钮 ---------- */
.sky-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--sky-font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform 0.2s var(--sky-ease), background-color 0.2s var(--sky-ease),
              color 0.2s var(--sky-ease), border-color 0.2s var(--sky-ease), box-shadow 0.2s var(--sky-ease);
}
.sky-btn:hover { transform: translateY(-2px); }

.sky-btn--gold {
  background: var(--sky-gold);
  color: var(--sky-ink);
  box-shadow: 0 8px 22px rgba(245, 197, 66, 0.22);
}
.sky-btn--gold:hover { box-shadow: 0 12px 28px rgba(245, 197, 66, 0.34); }

.sky-btn--ghost {
  background: transparent;
  color: var(--sky-white);
  border-color: rgba(255, 255, 255, 0.3);
}
.sky-btn--ghost:hover { border-color: var(--sky-ice); color: var(--sky-ice); }

.sky-btn--quiet {
  background: rgba(91, 192, 235, 0.12);
  color: var(--sky-ice);
  border-color: rgba(91, 192, 235, 0.42);
}
.sky-btn--quiet:hover { background: rgba(91, 192, 235, 0.2); }

.sky-btn--sm { padding: 9px 16px; font-size: 13px; }

/* ---------- 8. 面包屑 ---------- */
.sky-crumbs { margin-top: clamp(18px, 3vw, 32px); }
.sky-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--sky-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--sky-grey);
}
.sky-crumbs__link {
  color: var(--sky-ice);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--sky-ease);
}
.sky-crumbs__link:hover { border-bottom-color: currentColor; }
.sky-crumbs__sep { opacity: 0.45; }
.sky-crumbs__item[aria-current="page"] { color: var(--sky-white); }

/* ---------- 9. 章节与正文 ---------- */
.sky-section {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px);
}

.sky-section__head {
  display: grid;
  gap: 14px;
  max-width: 760px;
  margin-bottom: clamp(24px, 4vw, 48px);
}

.sky-section--paper {
  background: var(--sky-paper);
  background-image: linear-gradient(180deg, rgba(216, 203, 184, 0.4), transparent 45%);
  color: #352c1d;
}
.sky-section--paper :is(h1, h2, h3, h4) { color: var(--sky-deep); }
.sky-section--paper .sky-lede { color: #4d4433; }
.sky-section--paper .sky-eyebrow { color: var(--sky-violet); }
.sky-section--paper :focus-visible { outline-color: var(--sky-violet); }
.sky-section--paper .sky-crumbs__list { color: #7a6f5b; }
.sky-section--paper .sky-crumbs__item[aria-current="page"] { color: var(--sky-deep); }

.sky-section--ink {
  background: var(--sky-ink);
  color: rgba(255, 255, 255, 0.78);
}

.sky-prose { max-width: 44em; }
.sky-prose > * + * { margin-top: 1em; }
.sky-prose h2 {
  margin-top: 1.8em;
  font-size: clamp(24px, 3vw, 34px);
}
.sky-prose h3 { margin-top: 1.4em; font-size: clamp(19px, 2.2vw, 24px); }
.sky-prose p { max-width: 44em; }
.sky-prose strong { color: var(--sky-gold); font-weight: 700; }
.sky-section--paper .sky-prose strong { color: var(--sky-deep); }
.sky-prose ul { display: grid; gap: 0.55em; padding-left: 1.1em; list-style: none; }
.sky-prose ul li { position: relative; padding-left: 0.9em; }
.sky-prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--sky-gold);
}

/* ---------- 10. 网格与 Bento ---------- */
.sky-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(12px, 1.6vw, 24px);
}

.sky-bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: minmax(96px, auto);
  gap: clamp(12px, 1.6vw, 24px);
}

.sky-tile {
  position: relative;
  grid-column: span 4;
  padding: clamp(18px, 2.2vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 2px;
  background:
    radial-gradient(120% 130% at 12% 0%, rgba(123, 77, 255, 0.18), transparent 58%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  transition: transform 0.26s var(--sky-ease), border-color 0.26s var(--sky-ease), box-shadow 0.26s var(--sky-ease);
}
.sky-tile:hover,
.sky-tile:focus-within {
  transform: translateY(-3px);
  border-color: rgba(245, 197, 66, 0.6);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.38);
}
.sky-tile--wide { grid-column: span 6; }
.sky-tile--tall { grid-row: span 2; }
.sky-tile--focus { grid-column: span 8; grid-row: span 2; }

/* ---------- 11. 纸卡与标签 ---------- */
.sky-card {
  position: relative;
  padding: clamp(20px, 2.4vw, 34px);
  background: var(--sky-paper);
  color: #352c1d;
  border: 1px solid var(--sky-edge);
  box-shadow: 6px 6px 0 rgba(216, 203, 184, 0.4), 0 18px 40px rgba(3, 7, 16, 0.35);
}
.sky-card :is(h1, h2, h3, h4) { color: var(--sky-deep); }
.sky-card :focus-visible { outline-color: var(--sky-violet); }
.sky-card .sky-prose strong { color: var(--sky-deep); }

.sky-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid currentColor;
  border-radius: 1px;
  font-family: var(--sky-font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.4;
  white-space: nowrap;
}
.sky-tag--gold { color: var(--sky-gold); }
.sky-tag--ice { color: var(--sky-ice); }
.sky-tag--violet { color: var(--sky-violet); }
.sky-tag--mint { color: var(--sky-mint); }
.sky-tag--paper {
  background: var(--sky-paper);
  color: var(--sky-deep);
  border-color: var(--sky-edge);
}

/* ---------- 12. 图片容器基础规则 ---------- */
.sky-figure {
  position: relative;
  display: grid;
  gap: 10px;
  margin: 0;
}
.sky-figure__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 2px;
  background:
    radial-gradient(120% 120% at 20% 8%, rgba(123, 77, 255, 0.4), transparent 58%),
    radial-gradient(90% 90% at 82% 82%, rgba(91, 192, 235, 0.3), transparent 62%),
    var(--sky-deep-2);
}
.sky-figure__media img,
.sky-figure__media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.sky-figure--wide .sky-figure__media { aspect-ratio: 21 / 9; }
.sky-figure--tall .sky-figure__media { aspect-ratio: 4 / 5; }
.sky-figure--square .sky-figure__media { aspect-ratio: 1 / 1; }
.sky-figure__caption {
  font-family: var(--sky-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sky-grey);
}

/* ---------- 13. 显现协议 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--sky-ease), transform 0.5s var(--sky-ease);
  transition-delay: var(--sky-delay, 0ms);
}
.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1080px) {
  .sky-nav__list { gap: clamp(2px, 1vw, 12px); }
  .sky-nav__link { font-size: 14px; padding-inline: 2px; }
  .sky-header__strap { display: none; }
  .sky-tile { grid-column: span 6; }
  .sky-tile--focus { grid-column: span 12; grid-row: span 1; }
}

@media (max-width: 900px) {
  .sky-header__nav-inner { min-height: 58px; }
  .sky-nav-toggle { display: inline-flex; }

  .sky-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 130;
    display: none;
    flex: 0 0 auto;
    padding: 8px var(--sky-gutter) 20px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    background: var(--sky-ink);
    border-top: 1px solid var(--sky-line);
    border-bottom: 1px solid var(--sky-line);
    box-shadow: 0 26px 48px rgba(0, 0, 0, 0.5);
  }
  .sky-nav[data-open="true"] { display: block; }

  .sky-nav__list { display: block; }
  .sky-nav__item { border-bottom: 1px solid rgba(255, 255, 255, 0.09); }
  .sky-nav__item:last-child { border-bottom: 0; }

  .sky-nav__link {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 14px 0;
    font-size: 16px;
    white-space: normal;
  }
  .sky-nav__link::before { display: none; }
  .sky-nav__link::after {
    position: static;
    margin-left: auto;
    max-width: 52%;
    min-width: 0;
    padding: 0;
    opacity: 1;
    transform: none;
    background: transparent;
    border: 0;
    box-shadow: none;
    font-size: 12px;
    line-height: 1.45;
    text-align: right;
    color: var(--sky-grey);
  }
  .sky-nav__link:hover::after,
  .sky-nav__link:focus-visible::after { transform: none; }

  .sky-footer__grid { grid-template-columns: 1fr 1fr; }
  .sky-footer__orbit { opacity: 0.55; }
}

@media (max-width: 760px) {
  .sky-header__badge { display: none; }
  .sky-header__name { font-size: 17px; }
  .sky-header__hours { font-size: 11px; padding-left: 10px; }
  .sky-tile,
  .sky-tile--wide { grid-column: span 12; }
  .sky-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .sky-footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .sky-footer__bar { justify-content: flex-start; }
  .sky-btn { padding: 12px 18px; font-size: 13px; }
  .sky-header__cta { padding: 8px 12px; font-size: 12px; letter-spacing: 0.04em; }
  .sky-nav-toggle { padding: 9px 12px; font-size: 13px; }
}

/* ---------- 15. 减弱动效 / 打印 ---------- */
@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;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .sky-btn:hover,
  .sky-tile:hover,
  .sky-tile:focus-within { transform: none; }
}

@media print {
  .sky-skip,
  .sky-progress,
  .sky-nav-toggle,
  .sky-header__cta { display: none !important; }
  .sky-header { position: static; background: #fff; color: #000; border-bottom: 1px solid #999; }
  .sky-footer { background: #fff; color: #000; border-top: 1px solid #999; }
  body { background: #fff; color: #000; }
}