/* ==========================================================================
   乐鱼体育 · 共享外壳样式 /assets/site.css
   深海夜蓝底 · 荧光青强调 · 斜向切割 · 框景与刻度
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  --deep-night: #061A2E;
  --deep-step: #0D2A46;
  --deep-line: #1B4A73;
  --neon-cyan: #23E6D0;
  --neon-soft: #9BF6EC;
  --coral: #FF6A4D;
  --amber: #FFB13C;
  --pitch: #3BB273;
  --warm-white: #F3F7F5;
  --charcoal: #14181D;
  --mist: #8CA3BC;
  --white: #FFFFFF;

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

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.5rem;
  --fs-xl: 2.25rem;
  --fs-2xl: 3.5rem;
  --fs-3xl: 5.5rem;

  --shell: 1320px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --cut: clamp(22px, 3.4vw, 46px);

  --ease: cubic-bezier(.22, .61, .36, 1);
  --t-fast: 140ms;
  --t-mid: 180ms;
  --t-in: 420ms;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100%;
  background-color: var(--deep-night);
  background-image:
    radial-gradient(1200px 620px at 78% -12%, rgba(35, 230, 208, 0.07), transparent 62%),
    radial-gradient(900px 520px at 2% 106%, rgba(255, 106, 77, 0.055), transparent 64%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--warm-white);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video { max-width: 100%; }
img { height: auto; border: 0; }

button { font: inherit; }

::selection {
  background: var(--neon-cyan);
  color: var(--deep-night);
}

:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

#main-content { scroll-margin-top: 128px; }

/* ---------- 3. 中文排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--white);
}

p { margin: 0; }

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--neon-soft); }

.num,
[data-count],
[data-num] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- 4. 布局工具 ---------- */
.shell,
.page-shell {
  width: min(var(--shell), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.section { padding-block: clamp(2.5rem, 6vw, 5rem); }

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.75rem);
}
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- 5. 跳至主要内容 ---------- */
.skip-link {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 200;
  padding: 0.62rem 1.15rem;
  background: var(--neon-cyan);
  color: var(--deep-night);
  font-size: 0.86rem;
  font-weight: 700;
  border-radius: 0 0 10px 10px;
  transform: translate(-50%, -150%);
  transition: transform var(--t-mid) var(--ease);
  white-space: nowrap;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translate(-50%, 0);
  color: var(--deep-night);
  outline-offset: -4px;
}

/* ---------- 6. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: linear-gradient(180deg, rgba(6, 26, 46, 0.94) 0%, rgba(6, 26, 46, 0.78) 100%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(27, 74, 115, 0.55);
  transition: background var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
}
.site-header[data-scrolled] {
  background: rgba(6, 26, 46, 0.98);
  border-bottom-color: var(--deep-line);
}
.site-header[data-open] {
  background: var(--deep-night);
}

.header-bar {
  width: min(var(--shell), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto minmax(1rem, 1fr) auto auto;
  align-items: center;
  gap: clamp(0.75rem, 1.8vw, 1.75rem);
  min-height: 72px;
  padding-block: 0.5rem;
  transition: min-height var(--t-mid) var(--ease);
}
.site-header[data-scrolled] .header-bar { min-height: 60px; }

/* 品牌区 */
.brand-zone {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.62rem;
  color: inherit;
  text-decoration: none;
}
.brand-mark:hover { color: inherit; }

.brand-glyph {
  position: relative;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border: 1.5px solid rgba(35, 230, 208, 0.5);
  border-radius: 13px 4px 13px 4px;
  background: linear-gradient(142deg, rgba(35, 230, 208, 0.16), rgba(35, 230, 208, 0) 62%);
  overflow: hidden;
  transition: border-color var(--t-mid) var(--ease), border-radius var(--t-mid) var(--ease);
}
.brand-glyph::before {
  content: "";
  position: absolute;
  left: -20%;
  right: -20%;
  bottom: -34%;
  height: 62%;
  background: var(--deep-line);
  transform: rotate(-9deg);
}
.brand-glyph::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 11px;
  margin: -5.5px 0 0 -5.5px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 0 4px rgba(35, 230, 208, 0.16);
  transition: background var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}
.brand-mark:hover .brand-glyph,
.brand-mark:focus-visible .brand-glyph {
  border-color: var(--coral);
  border-radius: 4px 13px 4px 13px;
}
.brand-mark:hover .brand-glyph::after { background: var(--coral); box-shadow: 0 0 0 4px rgba(255, 106, 77, 0.18); }

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: 0.06em;
  color: var(--white);
  white-space: nowrap;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  line-height: 1.2;
  letter-spacing: 0.36em;
  color: var(--mist);
  white-space: nowrap;
}

/* 当前赛季标签 */
.season-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.7rem 0.3rem 0.6rem;
  border: 1px solid rgba(35, 230, 208, 0.35);
  border-radius: 999px;
  background: rgba(35, 230, 208, 0.06);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--neon-soft);
  white-space: nowrap;
}
.season-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-cyan);
  animation: pulse-dot 2.4s var(--ease) infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.68); }
}

/* 中间的呼吸位：虚线刻度 + 菱形指针 */
.header-gap {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 1.5rem;
  overflow: hidden;
}
.gap-rule {
  flex: 1 1 auto;
  height: 1px;
  background-image: repeating-linear-gradient(90deg, var(--deep-line) 0 10px, transparent 10px 20px);
}
.gap-tick {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border: 1px solid var(--neon-cyan);
  transform: rotate(45deg);
}

/* 主导航 */
.primary-nav { min-width: 0; }
.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-list a {
  position: relative;
  display: block;
  padding: 0.5rem 0;
  color: var(--warm-white);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--neon-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-mid) var(--ease);
}
.nav-list a:hover,
.nav-list a:focus-visible { color: var(--neon-soft); }
.nav-list a:hover::after { transform: scaleX(1); }
.nav-list a[aria-current="page"] {
  color: var(--neon-cyan);
  font-weight: 700;
}
.nav-list a[aria-current="page"]::after { transform: scaleX(1); }

/* 工具区：赛季切换 + 移动导航按钮 */
.utility-zone {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.season-track {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(27, 74, 115, 0.85);
  border-radius: 999px;
  background: rgba(13, 42, 70, 0.6);
}
.season-btn {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0.24rem 0.68rem;
  border-radius: 999px;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.season-btn:hover { color: var(--neon-soft); }
.season-btn[aria-pressed="true"] {
  background: var(--neon-cyan);
  color: var(--deep-night);
  font-weight: 700;
}
.season-btn[aria-pressed="true"]:hover { color: var(--deep-night); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.42rem 0.72rem;
  border: 1px solid var(--deep-line);
  border-radius: 10px 3px 10px 3px;
  background: rgba(13, 42, 70, 0.7);
  color: var(--warm-white);
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color var(--t-mid) var(--ease), color var(--t-mid) var(--ease);
}
.nav-toggle:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }
.nav-toggle-bars {
  display: grid;
  gap: 3px;
  width: 16px;
}
.nav-toggle-bars span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--t-mid) var(--ease), opacity var(--t-fast) var(--ease);
}
.nav-toggle-bars span:nth-child(2) { width: 70%; }
.site-header[data-open] .nav-toggle-bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle-bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 下沿快捷通道 */
.header-rail {
  width: min(var(--shell), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  padding-bottom: 0.6rem;
  transition: padding var(--t-mid) var(--ease);
}
.site-header[data-scrolled] .header-rail { padding-bottom: 0.3rem; }

.shortcut-bar {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}
.shortcut-title {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  color: rgba(140, 163, 188, 0.75);
  text-transform: uppercase;
  white-space: nowrap;
}
.shortcut-list {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}
.shortcut-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.24rem 0.68rem;
  border: 1px solid rgba(27, 74, 115, 0.75);
  border-radius: 999px;
  color: var(--mist);
  font-size: 0.79rem;
  transition: color var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease),
              background var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}
.shortcut-list a:hover,
.shortcut-list a:focus-visible {
  color: var(--warm-white);
  border-color: var(--neon-cyan);
  background: rgba(35, 230, 208, 0.08);
  transform: translateY(-2px);
}
.sc-dot {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-cyan);
}
.sc-dot--pitch { background: var(--pitch); }
.sc-dot--amber { background: var(--amber); }
.sc-dot--coral { background: var(--coral); }

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(3rem, 7vw, 6rem);
  color: var(--mist);
  font-size: 0.9rem;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, #101A26 0%, var(--charcoal) 58%);
  clip-path: polygon(0 var(--cut), 100% 0, 100% 100%, 0 100%);
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 84% 14%, rgba(35, 230, 208, 0.09), transparent 42%),
    radial-gradient(circle at 10% 88%, rgba(255, 177, 60, 0.07), transparent 46%);
  clip-path: polygon(0 var(--cut), 100% 0, 100% 100%, 0 100%);
}

.footer-inner {
  position: relative;
  z-index: 1;
  width: min(var(--shell), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  padding-top: calc(var(--cut) + clamp(2rem, 4vw, 3.4rem));
  padding-bottom: 1.5rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding-bottom: clamp(1.5rem, 3vw, 2.5rem);
  border-bottom: 1px solid rgba(140, 163, 188, 0.16);
}
.brand-mark--footer .brand-glyph { width: 34px; height: 34px; }
.brand-mark--footer .brand-name { font-size: 1.15rem; }
.brand-mark--footer .brand-sub { font-size: 0.55rem; }

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: rgba(140, 163, 188, 0.7);
}
.footer-badge::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--neon-cyan);
  opacity: 0.6;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.75rem);
  padding-block: clamp(1.75rem, 3.5vw, 2.75rem);
}

.footer-zone { min-width: 0; }

.footer-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}
.footer-title::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(35, 230, 208, 0.4), transparent);
}

.footer-links {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-links a {
  position: relative;
  display: inline-block;
  padding-left: 0;
  color: var(--mist);
  font-size: 0.9rem;
  transition: color var(--t-fast) var(--ease), padding-left var(--t-mid) var(--ease);
}
.footer-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--neon-cyan);
  transition: width var(--t-mid) var(--ease);
}
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--warm-white);
  padding-left: 1.15rem;
}
.footer-links a:hover::before { width: 0.85rem; }

.footer-contact {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.88rem;
  line-height: 1.65;
}
.footer-contact li { display: grid; gap: 0.15rem; }
.footer-contact .k {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(140, 163, 188, 0.6);
}
.footer-contact .v {
  color: var(--warm-white);
  overflow-wrap: break-word;
}

.footer-base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: clamp(1.25rem, 2.5vw, 1.75rem);
  border-top: 1px solid rgba(140, 163, 188, 0.16);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: rgba(140, 163, 188, 0.75);
}

/* ---------- 8. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 120;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(35, 230, 208, 0.5);
  border-radius: 999px;
  background: rgba(6, 26, 46, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--t-mid) var(--ease), transform var(--t-mid) var(--ease),
              visibility var(--t-mid) linear, border-color var(--t-mid) var(--ease), color var(--t-mid) var(--ease);
}
.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.to-top:hover {
  border-color: var(--coral);
  color: var(--coral);
}
.to-top-arrow {
  width: 8px;
  height: 8px;
  border-left: 2px solid currentColor;
  border-top: 2px solid currentColor;
  transform: rotate(45deg);
}

/* ---------- 9. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 12px 4px 12px 4px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease),
              background var(--t-mid) var(--ease), color var(--t-mid) var(--ease);
}
.btn:hover { transform: translateY(-3px); }
.btn--primary {
  background: var(--neon-cyan);
  color: var(--deep-night);
}
.btn--primary:hover { background: var(--neon-soft); color: var(--deep-night); }
.btn--coral {
  background: var(--coral);
  color: #220B05;
}
.btn--coral:hover { background: #FF8569; color: #220B05; }
.btn--ghost {
  border-color: var(--deep-line);
  background: rgba(13, 42, 70, 0.5);
  color: var(--warm-white);
}
.btn--ghost:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.breadcrumb li + li::before {
  content: "/";
  color: var(--deep-line);
}
.breadcrumb a { color: var(--mist); }
.breadcrumb a:hover { color: var(--neon-cyan); }
.breadcrumb [aria-current="page"] { color: var(--neon-soft); }

.prose {
  max-width: 72ch;
  font-size: var(--fs-md);
  line-height: 1.85;
  color: rgba(243, 247, 245, 0.86);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2 {
  margin-top: 2.2em;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
}
.prose h3 {
  margin-top: 1.8em;
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
}
.prose a {
  color: var(--neon-cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.prose strong { color: var(--white); }
.prose ul,
.prose ol { padding-left: 1.25rem; }
.prose li + li { margin-top: 0.4em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
}

.frame {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border: 1px solid var(--deep-line);
  border-radius: 20px 6px 20px 6px;
}
.frame::before,
.frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--neon-cyan);
}
.frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
  border-radius: 20px 0 0 0;
}
.frame::after {
  right: -1px;
  bottom: -1px;
  border-left: 0;
  border-top: 0;
  border-radius: 0 0 6px 0;
}

.card {
  position: relative;
  padding: clamp(1.1rem, 2vw, 1.6rem);
  background: var(--deep-step);
  border: 1px solid rgba(35, 230, 208, 0.28);
  border-radius: 16px 5px 16px 5px;
  transition: border-color var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}
.card:hover {
  border-color: var(--coral);
  transform: translateY(-3px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.62rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: rgba(35, 230, 208, 0.08);
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}
.tag--pitch { color: var(--pitch); background: rgba(59, 178, 115, 0.1); }
.tag--amber { color: var(--amber); background: rgba(255, 177, 60, 0.1); }
.tag--coral { color: var(--coral); background: rgba(255, 106, 77, 0.1); }

.stat {
  display: grid;
  gap: 0.35rem;
  padding: 0.9rem 1rem;
  background: rgba(13, 42, 70, 0.72);
  border: 1px solid rgba(27, 74, 115, 0.7);
  border-radius: 12px 4px 12px 4px;
}
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}
.stat__label {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.stat--cyan .stat__value { color: var(--neon-cyan); }
.stat--coral .stat__value { color: var(--coral); }
.stat--amber .stat__value { color: var(--amber); }
.stat--pitch .stat__value { color: var(--pitch); }

/* 可复用图片容器：页面阶段放置 img 即可 */
.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(27, 74, 115, 0.6);
  border-radius: 18px 6px 18px 6px;
  background: linear-gradient(140deg, var(--deep-step), var(--charcoal));
}
.media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-in) var(--ease);
}
.media:hover img { transform: scale(1.04); }
.media--wide { aspect-ratio: 21 / 9; }
.media--portrait { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media--pitch { border-left: 3px solid var(--pitch); }
.media--court { border-left: 3px solid var(--amber); }
.media--placeholder {
  background-image:
    linear-gradient(rgba(27, 74, 115, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 74, 115, 0.4) 1px, transparent 1px),
    linear-gradient(140deg, var(--deep-step), var(--charcoal));
  background-size: 52px 52px, 52px 52px, 100% 100%;
}
.media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.4rem 1.1rem 0.85rem;
  background: linear-gradient(180deg, transparent, rgba(6, 26, 46, 0.88));
  font-size: 0.82rem;
  color: var(--warm-white);
}

/* ---------- 10. 入场显现 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--t-in) var(--ease), transform var(--t-in) var(--ease);
}
html.js [data-reveal][data-shown] {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 断点 ---------- */
@media (max-width: 1080px) {
  .nav-list { gap: 1rem; }
  .brand-sub { letter-spacing: 0.28em; }
}

@media (max-width: 980px) {
  .header-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: 0;
  }
  .header-gap { display: none; }
  .brand-zone { grid-column: 1; grid-row: 1; }
  .utility-zone { grid-column: 2; grid-row: 1; }

  .primary-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    display: none;
    padding-bottom: 0.75rem;
  }
  .site-header[data-open] .primary-nav { display: block; }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-list a {
    padding: 0.85rem 0.25rem;
    border-bottom: 1px solid rgba(27, 74, 115, 0.5);
    font-size: 1rem;
  }
  .nav-list a::after { display: none; }
  .nav-list a[aria-current="page"] { color: var(--neon-cyan); }

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

  .header-rail { display: none; }
  .site-header[data-open] .header-rail {
    display: block;
    max-height: calc(100vh - 84px);
    max-height: calc(100dvh - 84px);
    overflow-y: auto;
    padding-bottom: 1.25rem;
  }
  .shortcut-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  .shortcut-list { gap: 0.4rem; }

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

@media (max-width: 620px) {
  .brand-name { font-size: 1.12rem; }
  .brand-sub { display: none; }
  .season-tag { display: none; }
  .shortcut-title { display: none; }
  .shortcut-list a { font-size: 0.76rem; }
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.75rem;
  }
  .footer-base {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 560px) {
  .season-track { display: none; }
}

/* ---------- 12. 降低动效偏好 ---------- */
@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;
  }
  html.js [data-reveal],
  html.js [data-reveal][data-shown] {
    opacity: 1;
    transform: none;
  }
}