/* ==========================================================
   诺亚体育 · 全站共享样式
   归档路径 /assets/site.css
   ========================================================== */

:root {
  --clr-deep: #1B4332;
  --clr-deep-light: #2D6A4F;
  --clr-cream: #F5E6D3;
  --clr-ink: #2B2B2B;
  --clr-orange: #FF6B35;
  --clr-silver: #A9A9A9;
  --clr-white: #FFFFFF;
  --clr-border: #4A3728;
  --clr-red: #E63946;
  --clr-yellow: #F1C40F;

  --font-display: Impact, "Arial Black", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", Consolas, "Courier New", monospace;

  --rail-width: clamp(260px, 22vw, 320px);
  --container-max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --shadow-hard: 8px 8px 0 var(--clr-border);
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --speed-fast: 0.18s;
  --speed-base: 0.28s;
}

/* ---------- Reset ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--clr-cream);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--clr-ink);
  background-color: var(--clr-cream);
  background-image:
    linear-gradient(rgba(74, 55, 40, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 55, 40, 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  margin-left: var(--rail-width);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-ink);
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.2rem, 5vw, 3rem); }
h2 { font-size: 2rem; }
h3 { font-size: 1.2rem; }

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

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

a {
  color: var(--clr-deep);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

[id] {
  scroll-margin-top: 1.5rem;
}

::selection {
  background: var(--clr-orange);
  color: var(--clr-deep);
}

:focus-visible {
  outline: 4px solid var(--clr-orange);
  outline-offset: 2px;
}

#main-content {
  outline: none;
  min-height: 60vh;
}

/* ==========================================================
   头部 / 侧边轨道导航
   ========================================================== */

.site-header {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--rail-width);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  background-color: var(--clr-deep);
  background-image: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.035) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.035) 50%,
    rgba(255, 255, 255, 0.035) 75%,
    transparent 75%,
    transparent
  );
  background-size: 26px 26px;
  border-right: 4px solid var(--clr-border);
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 1rem;
  z-index: 1300;
  padding: 0.65rem 1.2rem;
  background: var(--clr-orange);
  color: var(--clr-deep);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  border: 3px solid var(--clr-border);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.4);
  transition: top var(--speed-fast) var(--ease-out);
}

.skip-link:focus {
  top: 1rem;
}

.read-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: var(--rail-width);
  height: 4px;
  z-index: 1150;
  background: rgba(245, 230, 211, 0.12);
  pointer-events: none;
}

.read-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--clr-orange), var(--clr-yellow));
  transition: width 0.06s linear;
}

.header-top {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 2rem 1.5rem 1.35rem;
  border-bottom: 3px solid rgba(245, 230, 211, 0.14);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--clr-cream);
}

.brand-glyph {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--clr-orange) 0%, #ff8a55 100%);
  color: var(--clr-deep);
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1;
  transform: skewX(-8deg);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--clr-cream);
}

.brand-tagline {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clr-silver);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  background: rgba(255, 107, 53, 0.14);
  border: 2px solid rgba(245, 230, 211, 0.35);
  color: var(--clr-cream);
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.35);
}

.toggle-bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--clr-cream);
  transition: transform var(--speed-fast) var(--ease-out), opacity var(--speed-fast) var(--ease-out);
}

.toggle-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--clr-cream);
}

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

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

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

.header-inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.site-nav {
  flex: 1;
  padding: 1.25rem 0;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.8rem 1.5rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: 0.02em;
  color: rgba(245, 230, 211, 0.72);
  text-decoration: none;
  border-left: 4px solid transparent;
  transition:
    color var(--speed-fast) var(--ease-out),
    background-color var(--speed-fast) var(--ease-out),
    border-color var(--speed-fast) var(--ease-out);
}

.nav-link::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--clr-silver);
  transform: rotate(45deg);
  transition: background-color var(--speed-fast), transform var(--speed-fast);
}

.nav-link:hover {
  color: var(--clr-white);
  background: rgba(255, 107, 53, 0.1);
  border-left-color: var(--clr-orange);
}

.nav-link:hover::before {
  background: var(--clr-orange);
  transform: rotate(45deg) scale(1.25);
}

.nav-link[aria-current="page"] {
  color: var(--clr-white);
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.24), rgba(255, 107, 53, 0.04));
  border-left-color: var(--clr-orange);
}

.nav-link[aria-current="page"]::before {
  background: var(--clr-orange);
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.8);
}

.rail-foot {
  margin-top: auto;
  padding: 1.4rem 1.25rem 1.5rem;
  border-top: 3px solid rgba(245, 230, 211, 0.14);
}

.subscribe-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1rem 0.8rem 1.2rem;
  background: linear-gradient(135deg, var(--clr-orange), #ff7f4d);
  color: var(--clr-deep);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 2px solid var(--clr-border);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%);
  transition: filter var(--speed-fast), transform var(--speed-fast);
}

.subscribe-link:hover {
  filter: brightness(1.08);
  transform: translateX(2px);
}

.subscribe-dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--clr-deep);
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.28);
}

.subscribe-text {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.rail-note {
  margin: 0.85rem 0 0;
  font-size: 0.72rem;
  line-height: 1.5;
  text-align: center;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: rgba(245, 230, 211, 0.55);
}

.nav-overlay {
  display: none;
}

/* ---------- 移动端头部 ---------- */

@media (max-width: 1023px) {
  body {
    margin-left: 0;
    padding-top: 60px;
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: 60px;
    flex-direction: row;
    align-items: center;
    border-right: 0;
    border-bottom: 3px solid var(--clr-border);
    background-size: 20px 20px;
  }

  .header-top {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.7rem;
    width: 100%;
    height: 60px;
    padding: 0 0.75rem;
    border-bottom: 0;
  }

  .brand-glyph {
    width: 36px;
    height: 36px;
    font-size: 1.3rem;
  }

  .brand-name {
    font-size: 1.3rem;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header-inner {
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    z-index: 1090;
    width: min(340px, 86vw);
    background-color: var(--clr-deep);
    background-image: linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.035) 25%,
      transparent 25%,
      transparent 50%,
      rgba(255, 255, 255, 0.035) 50%,
      rgba(255, 255, 255, 0.035) 75%,
      transparent 75%,
      transparent
    );
    background-size: 26px 26px;
    border-right: 4px solid var(--clr-border);
    box-shadow: 12px 0 28px rgba(0, 0, 0, 0.25);
    transform: translateX(-105%);
    transition: transform 0.3s var(--ease-out);
  }

  .header-inner[data-open] {
    transform: translateX(0);
  }

  .site-nav {
    padding: 0.75rem 0;
  }

  .nav-link {
    padding: 0.9rem 1.25rem;
  }

  .nav-overlay {
    display: block;
    position: fixed;
    inset: 60px 0 0 0;
    z-index: 1080;
    background: rgba(27, 67, 50, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s linear, visibility 0.3s linear;
  }

  .nav-overlay[data-open] {
    opacity: 1;
    visibility: visible;
  }

  .read-progress {
    left: 0;
  }
}

/* ==========================================================
   页脚
   ========================================================== */

.site-footer {
  background-color: var(--clr-deep);
  background-image: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.03) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.03) 50%,
    rgba(255, 255, 255, 0.03) 75%,
    transparent 75%,
    transparent
  );
  background-size: 28px 28px;
  color: var(--clr-cream);
  border-top: 6px solid var(--clr-orange);
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 4rem) var(--gutter) 1.5rem;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 2.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-desc {
  margin: 1.1rem 0 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(245, 230, 211, 0.72);
  max-width: 34ch;
}

.footer-badge {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.3rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--clr-yellow);
  border: 2px solid rgba(245, 230, 211, 0.3);
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--clr-orange);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(245, 230, 211, 0.16);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.footer-link {
  position: relative;
  display: inline-block;
  padding-left: 1.1rem;
  font-size: 0.92rem;
  color: rgba(245, 230, 211, 0.74);
  text-decoration: none;
  transition: color var(--speed-fast), padding-left var(--speed-fast);
}

.footer-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--clr-silver);
  transform: translateY(-50%) rotate(45deg);
  transition: background-color var(--speed-fast), transform var(--speed-fast);
}

.footer-link:hover {
  color: var(--clr-orange);
  padding-left: 1.45rem;
}

.footer-link:hover::before {
  background: var(--clr-orange);
  transform: translateY(-50%) rotate(45deg) scale(1.3);
}

.footer-contact-col {
  display: grid;
  align-content: start;
}

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.footer-contact-item {
  display: grid;
  gap: 0.1rem;
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-silver);
}

.footer-contact-value {
  font-size: 0.92rem;
  color: rgba(245, 230, 211, 0.88);
}

.footer-ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2.25rem;
  padding: 1.25rem;
  border: 2px dashed rgba(245, 230, 211, 0.22);
}

.footer-ad-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(245, 230, 211, 0.35);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem 2rem;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(245, 230, 211, 0.16);
  font-size: 0.8rem;
  color: rgba(245, 230, 211, 0.58);
}

.footer-legal,
.footer-note {
  margin: 0;
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

@media (min-width: 768px) and (max-width: 1023px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

@media (max-width: 767px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ==========================================================
   布局容器与通用组件
   ========================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section-panel {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.section-panel + .section-panel {
  border-top: 4px solid var(--clr-border);
}

.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.panel-header {
  margin-bottom: 2.5rem;
  max-width: 78ch;
}

.panel-kicker {
  display: inline-block;
  padding: 0.24rem 0.7rem;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-orange);
  background: rgba(255, 107, 53, 0.12);
  border-left: 4px solid var(--clr-orange);
}

.panel-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 3vw, 2.2rem);
}

.panel-desc {
  margin: 0;
  font-size: 1rem;
  color: rgba(43, 43, 43, 0.78);
  max-width: 62ch;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--clr-deep);
  background: var(--clr-white);
  border: 3px solid var(--clr-border);
  box-shadow: 5px 5px 0 var(--clr-border);
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--speed-fast) var(--ease-out),
    box-shadow var(--speed-fast) var(--ease-out),
    background-color var(--speed-fast) var(--ease-out);
}

.btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--clr-border);
  background-color: var(--clr-cream);
}

.btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 var(--clr-border);
}

.btn-primary {
  background: var(--clr-orange);
  color: var(--clr-deep);
}

.btn-outline {
  background: transparent;
  border-color: var(--clr-deep);
  box-shadow: 5px 5px 0 var(--clr-deep);
}

.btn-outline:hover {
  background: var(--clr-white);
  box-shadow: 8px 8px 0 var(--clr-deep);
}

.btn-on-dark {
  background: var(--clr-orange);
  border-color: var(--clr-cream);
  color: var(--clr-deep);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.4);
}

.btn-on-dark:hover {
  background: var(--clr-cream);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4);
}

.btn-size-lg {
  padding: 1rem 2.1rem;
  font-size: 1.05rem;
}

/* ---------- 标签 ---------- */

.tag {
  display: inline-block;
  padding: 0.22rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--clr-ink);
  background: var(--clr-white);
  border: 2px solid var(--clr-border);
  text-transform: uppercase;
  text-decoration: none;
}

.tag-accent {
  color: var(--clr-deep);
  background: var(--clr-orange);
  border-color: var(--clr-deep);
  font-weight: 700;
}

.tag-outline {
  background: transparent;
  color: var(--clr-deep);
}

/* ---------- 卡片与数据 ---------- */

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

.card {
  position: relative;
  padding: 1.5rem;
  background: var(--clr-white);
  border: 3px solid var(--clr-border);
  box-shadow: 6px 6px 0 var(--clr-border);
  transition: transform var(--speed-base) var(--ease-out), box-shadow var(--speed-base) var(--ease-out);
}

.card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--clr-border);
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.card-body {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(43, 43, 43, 0.78);
}

.card-link {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--clr-orange);
  text-decoration: none;
}

.card-link:hover {
  color: var(--clr-red);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(170px, 100%), 1fr));
  gap: 1.25rem;
}

.stat-card {
  position: relative;
  overflow: hidden;
  padding: 1.4rem 1.25rem 1.2rem;
  background: var(--clr-deep);
  color: var(--clr-cream);
  border: 3px solid var(--clr-border);
  box-shadow: 6px 6px 0 var(--clr-border);
}

.stat-card::after {
  content: "";
  position: absolute;
  right: -18px;
  top: -18px;
  width: 52px;
  height: 52px;
  background: var(--clr-orange);
  opacity: 0.2;
  transform: rotate(12deg);
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--clr-orange);
}

.stat-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: rgba(245, 230, 211, 0.75);
}

/* ---------- 列表与路径 ---------- */

.section-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.section-list li {
  position: relative;
  padding: 0.6rem 0 0.6rem 1.6rem;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(74, 55, 40, 0.16);
}

.section-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.25rem;
  width: 8px;
  height: 8px;
  background: var(--clr-orange);
  transform: rotate(45deg);
}

.path-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.path-list::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: var(--clr-border);
}

.path-item {
  position: relative;
  margin-left: 48px;
  padding: 1.1rem 1.2rem;
  background: var(--clr-white);
  border: 3px solid var(--clr-border);
  box-shadow: 4px 4px 0 var(--clr-border);
}

.path-item::before {
  content: attr(data-step);
  position: absolute;
  left: -48px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-deep);
  color: var(--clr-orange);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  border: 3px solid var(--clr-border);
  z-index: 1;
}

.divider {
  height: 4px;
  margin: 2.5rem 0;
  background: var(--clr-border);
  border: 0;
}

/* ---------- 图片占位 ---------- */

.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: rgba(74, 55, 40, 0.08);
  background-image: repeating-linear-gradient(45deg, rgba(74, 55, 40, 0.06) 0 10px, transparent 10px 20px);
  border: 3px solid var(--clr-border);
}

.img-frame::before {
  content: "IMG";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  color: rgba(74, 55, 40, 0.45);
}

.img-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-frame figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 0.3rem 0.7rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: rgba(27, 67, 50, 0.85);
  color: var(--clr-cream);
}

.img-frame-16x9 { aspect-ratio: 16 / 9; }
.img-frame-4x3 { aspect-ratio: 4 / 3; }
.img-frame-3x2 { aspect-ratio: 3 / 2; }
.img-frame-1x1 { aspect-ratio: 1 / 1; }
.img-frame-21x9 { aspect-ratio: 21 / 9; }

/* ---------- 球场视觉 ---------- */

.pitch-canvas {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: var(--clr-deep);
  border: 4px solid var(--clr-border);
  box-shadow: var(--shadow-hard);
}

.pitch-canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(245, 230, 211, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 230, 211, 0.07) 1px, transparent 1px);
  background-size: 12.5% 10%;
}

.pitch-line {
  position: absolute;
  z-index: 1;
  border: 2px solid rgba(245, 230, 211, 0.5);
}

.pitch-line-outline {
  inset: 4%;
}

.pitch-line-mid {
  top: 4%;
  bottom: 4%;
  left: 50%;
  border-width: 0 0 0 2px;
}

.pitch-circle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 22%;
  aspect-ratio: 1;
  border: 2px solid rgba(245, 230, 211, 0.5);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.pitch-dot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  background: rgba(245, 230, 211, 0.6);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 1.25rem 0;
  list-style: none;
  font-size: 0.85rem;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--clr-silver);
  font-family: var(--font-mono);
}

.breadcrumb-link {
  color: var(--clr-deep);
  text-decoration: none;
  font-weight: 500;
}

.breadcrumb-link:hover {
  color: var(--clr-orange);
}

.breadcrumb-current {
  color: var(--clr-silver);
}

/* ---------- 响应式辅助 ---------- */

@media (max-width: 767px) {
  .hero-split {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  html {
    scroll-behavior: auto;
  }

  .read-progress-bar {
    transition: none;
  }
}