/* ============================================
   有球体育全站综合 · 共享样式 /assets/site.css
   ============================================ */

:root {
  --primary-green: #2E8B57;
  --night-blue-black: #0B1B2A;
  --fluorescent-yellow-green: #C6FF00;
  --metal-gray: #8A8D91;
  --china-red: #C8102E;
  --light-background: #F5F7FA;
  --deep-green: #1B4332;
  --dark-blue: #0A0F14;
  --text-color: rgba(11, 27, 42, 0.88);
  --border-color: rgba(11, 27, 42, 0.12);
  --content-width: 1200px;
  --content-narrow: 760px;
  --header-height-mobile: 64px;
  --header-height-desktop: 76px;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-mono: "SF Mono", "Roboto Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-color);
  background: var(--light-background);
  -webkit-font-smoothing: antialiased;
}

#main-content {
  flex: 1 0 auto;
  width: 100%;
  scroll-margin-top: calc(var(--header-height-mobile) + 12px);
}

@media (min-width: 961px) {
  #main-content {
    scroll-margin-top: calc(var(--header-height-desktop) + 12px);
  }
}

ul,
ol {
  list-style: none;
}

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

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.25;
  color: var(--night-blue-black);
}

::selection {
  background: var(--fluorescent-yellow-green);
  color: var(--dark-blue);
}

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

.site-header a:focus-visible,
.site-footer a:focus-visible,
.nav-toggle:focus-visible,
.to-top:focus-visible {
  outline-color: var(--fluorescent-yellow-green);
}

/* ---------- 工具与容器 ---------- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: 24px;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 32px;
  }
}

.container--narrow {
  max-width: var(--content-narrow);
}

.section {
  padding-block: 64px;
}

.section--tight {
  padding-block: 40px;
}

.section--dark {
  background: var(--dark-blue);
  color: rgba(240, 244, 248, 0.85);
}

.section--tinted {
  background: var(--light-background);
}

.section--accent {
  background: var(--fluorescent-yellow-green);
  color: var(--dark-blue);
}

@media (min-width: 768px) {
  .section {
    padding-block: 88px;
  }
}

.prose {
  max-width: var(--content-narrow);
  font-size: 16px;
  line-height: 1.9;
}

.prose p + p {
  margin-top: 1.2em;
}

.prose ul {
  list-style: disc;
  padding-left: 1.4em;
  margin-top: 1em;
}

.prose li + li {
  margin-top: 0.4em;
}

.rule {
  height: 2px;
  border: 0;
  background: linear-gradient(90deg, var(--fluorescent-yellow-green) 0%, rgba(46, 139, 87, 0.35) 45%, transparent 90%);
}

/* ---------- 焦点与滚动辅助 ---------- */

.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 3000;
  padding: 12px 20px;
  background: var(--fluorescent-yellow-green);
  color: var(--dark-blue);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 8px 8px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 2000;
  background: linear-gradient(90deg, var(--fluorescent-yellow-green) 0%, var(--primary-green) 65%, var(--china-red) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  will-change: transform;
}

/* ---------- 页头 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 27, 42, 0.98);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(198, 255, 0, 0.18);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.22);
}

.site-header__inner {
  position: relative;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: 20px;
  height: var(--header-height-mobile);
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand__mark {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.brand__mark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--deep-green) 100%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.brand__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  transform: translate(-50%, -50%);
  background: var(--fluorescent-yellow-green);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(198, 255, 0, 0.15);
}

.brand__mark-core {
  position: absolute;
  top: 4px;
  right: 2px;
  width: 5px;
  height: 5px;
  background: var(--china-red);
  border-radius: 50%;
  z-index: 1;
}

.brand__name {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: #fff;
}

.brand__name em {
  font-style: normal;
  font-weight: 400;
  font-size: 9px;
  letter-spacing: 0.58em;
  color: var(--fluorescent-yellow-green);
  margin-top: 3px;
  padding-left: 2px;
}

.brand--footer {
  color: #fff;
}

.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 999;
  max-height: calc(100vh - var(--header-height-mobile));
  overflow-y: auto;
  background: rgba(11, 27, 42, 0.98);
  border-bottom: 1px solid rgba(198, 255, 0, 0.25);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
  border-radius: 0 0 12px 12px;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.site-nav[data-open="true"] {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 20px 20px;
}

.site-nav__item {
  list-style: none;
}

.site-nav__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 10px;
  border-bottom: 1px solid rgba(198, 255, 0, 0.08);
  text-decoration: none;
  color: rgba(240, 244, 248, 0.68);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.site-nav__link:hover {
  color: var(--fluorescent-yellow-green);
  background: rgba(198, 255, 0, 0.04);
}

.site-nav__link[aria-current="page"] {
  color: #ffffff;
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--metal-gray);
  transition: color 0.2s ease;
}

.site-nav__label {
  font-size: inherit;
}

.site-nav__state {
  width: 6px;
  height: 6px;
  border: 1px solid rgba(198, 255, 0, 0.35);
  border-radius: 2px;
  background: transparent;
  flex-shrink: 0;
  margin-left: auto;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav__link:hover .site-nav__index {
  color: var(--fluorescent-yellow-green);
}

.site-nav__link:hover .site-nav__state {
  background: var(--fluorescent-yellow-green);
  border-color: var(--fluorescent-yellow-green);
}

.site-nav__link[aria-current="page"] .site-nav__index {
  color: var(--fluorescent-yellow-green);
}

.site-nav__link[aria-current="page"] .site-nav__state {
  background: var(--china-red);
  border-color: var(--china-red);
  box-shadow: 0 0 8px rgba(200, 16, 46, 0.55);
}

.site-header__aside {
  display: none;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.site-header__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(240, 244, 248, 0.5);
  white-space: nowrap;
}

.header-signal {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 16px;
  padding-right: 10px;
  border-right: 1px solid rgba(198, 255, 0, 0.18);
}

.header-signal__bar {
  width: 3px;
  border-radius: 2px;
  background: var(--fluorescent-yellow-green);
}

.header-signal__bar--1 {
  height: 6px;
  opacity: 0.4;
}

.header-signal__bar--2 {
  height: 10px;
  opacity: 0.75;
}

.header-signal__bar--3 {
  height: 15px;
}

.nav-toggle {
  display: inline-flex;
  width: 42px;
  height: 42px;
  margin-left: auto;
  align-items: center;
  justify-content: center;
  position: relative;
  background: transparent;
  border: 1px solid rgba(198, 255, 0, 0.35);
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle__line {
  position: absolute;
  left: 12px;
  top: 20px;
  width: 18px;
  height: 2px;
  background: var(--fluorescent-yellow-green);
  border-radius: 2px;
  transition: background-color 0.25s ease;
}

.nav-toggle__line::before,
.nav-toggle__line::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 18px;
  height: 2px;
  background: inherit;
  border-radius: inherit;
  transition: transform 0.25s ease;
}

.nav-toggle__line::before {
  transform: translateY(-7px);
}

.nav-toggle__line::after {
  transform: translateY(5px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line::before {
  transform: translateY(0) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line::after {
  transform: translateY(0) rotate(-45deg);
}

@media (min-width: 961px) {
  .site-header__inner {
    height: var(--header-height-desktop);
    padding-inline: 32px;
    gap: 24px;
  }

  .site-nav {
    position: static;
    margin-left: auto;
    z-index: auto;
    max-height: none;
    overflow: visible;
    background: transparent;
    border: 0;
    border-left: 1px solid rgba(198, 255, 0, 0.14);
    border-radius: 0;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    transition: none;
  }

  .site-nav__list {
    flex-direction: row;
    align-items: stretch;
    padding: 0;
    gap: 4px;
  }

  .site-nav__link {
    padding: 10px 12px;
    border-bottom: 0;
  }

  .site-nav__link:hover {
    background: transparent;
  }

  .site-header__aside {
    display: inline-flex;
  }

  .nav-toggle {
    display: none;
  }
}

@media (min-width: 1201px) {
  .site-header__meta {
    display: inline;
  }
}

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  margin-top: auto;
  background-color: var(--night-blue-black);
  background-image:
    linear-gradient(rgba(198, 255, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 255, 0, 0.02) 1px, transparent 1px),
    linear-gradient(180deg, var(--dark-blue) 0%, var(--night-blue-black) 70%);
  background-size: 44px 44px, 44px 44px, 100% 100%;
  color: rgba(240, 244, 248, 0.7);
  border-top: 1px solid rgba(198, 255, 0, 0.18);
}

.site-footer__spine {
  height: 4px;
  background: linear-gradient(90deg, var(--fluorescent-yellow-green) 0%, var(--primary-green) 40%, var(--china-red) 100%);
}

.site-footer__inner {
  padding-top: 56px;
  padding-bottom: 32px;
}

.site-footer__primary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.site-footer__brand .brand__name {
  color: #ffffff;
}

.site-footer__trust {
  margin-top: 20px;
  padding-left: 14px;
  border-left: 3px solid var(--fluorescent-yellow-green);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(240, 244, 248, 0.7);
  line-height: 1.8;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.site-footer__heading {
  color: var(--fluorescent-yellow-green);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 16px;
  border-left: 3px solid var(--china-red);
  padding-left: 10px;
}

.site-footer__list a {
  display: inline-block;
  padding: 4px 0;
  color: rgba(240, 244, 248, 0.62);
  font-size: 13px;
  line-height: 1.6;
  text-decoration: none;
  background-image: linear-gradient(90deg, var(--fluorescent-yellow-green), var(--fluorescent-yellow-green));
  background-repeat: no-repeat;
  background-position: left bottom;
  background-size: 0% 1px;
  transition: color 0.2s ease, background-size 0.25s ease;
}

.site-footer__list a:hover {
  color: var(--fluorescent-yellow-green);
  background-size: 100% 1px;
}

.site-footer__contact li {
  display: flex;
  flex-direction: column;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: rgba(240, 244, 248, 0.6);
  border-bottom: 1px dashed rgba(240, 244, 248, 0.08);
}

.site-footer__contact-label {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--fluorescent-yellow-green);
  margin-bottom: 2px;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 24px;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(240, 244, 248, 0.1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(240, 244, 248, 0.42);
}

.site-footer__bottom p {
  margin: 0;
}

@media (min-width: 768px) {
  .site-footer__cols {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

@media (min-width: 961px) {
  .site-footer__primary {
    grid-template-columns: minmax(240px, 5fr) minmax(0, 7fr);
    gap: 48px;
  }
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  padding: 13px 22px;
  border-radius: 6px;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

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

.btn--primary {
  background: var(--primary-green);
  border-color: var(--primary-green);
  color: #ffffff;
}

.btn--primary:hover {
  background: var(--deep-green);
  border-color: var(--deep-green);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(46, 139, 87, 0.4);
  color: var(--deep-green);
}

.btn--ghost:hover {
  border-color: var(--primary-green);
  background: rgba(46, 139, 87, 0.07);
}

.btn--light {
  background: var(--fluorescent-yellow-green);
  border-color: var(--fluorescent-yellow-green);
  color: var(--dark-blue);
}

.btn--light:hover {
  background: #d8ff33;
  border-color: #d8ff33;
}

.btn--ghost-light {
  background: transparent;
  border-color: rgba(198, 255, 0, 0.45);
  color: var(--fluorescent-yellow-green);
}

.btn--ghost-light:hover {
  background: rgba(198, 255, 0, 0.12);
  border-color: var(--fluorescent-yellow-green);
}

/* ---------- 栅格与卡片 ---------- */

.grid {
  display: grid;
  gap: 20px;
}

.grid--2,
.grid--3,
.grid--4,
.grid--split {
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .grid--2,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .grid--split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.card {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 28px 24px;
  box-shadow: 0 1px 2px rgba(11, 27, 42, 0.04);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 0;
  width: 3px;
  height: 28px;
  background: var(--fluorescent-yellow-green);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  border-color: rgba(46, 139, 87, 0.45);
  box-shadow: 0 10px 28px rgba(11, 27, 42, 0.1);
  transform: translateY(-2px);
}

.card--dark {
  background: var(--night-blue-black);
  border-color: rgba(198, 255, 0, 0.12);
  color: rgba(240, 244, 248, 0.8);
}

/* ---------- 标签 ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(46, 139, 87, 0.3);
  background: #ffffff;
  color: var(--deep-green);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.tag--accent {
  border-color: rgba(198, 255, 0, 0.45);
  background: rgba(198, 255, 0, 0.15);
  color: var(--dark-blue);
}

.tag--red {
  border-color: rgba(200, 16, 46, 0.35);
  background: rgba(200, 16, 46, 0.06);
  color: var(--china-red);
}

.tag--outline {
  border-color: rgba(255, 255, 255, 0.35);
  background: transparent;
  color: #ffffff;
}

/* ---------- 章节标题 ---------- */

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
  border-top: 2px solid var(--deep-green);
  padding-top: 16px;
}

.section-head__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--metal-gray);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.section-head__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 34px);
  letter-spacing: 0.02em;
  line-height: 1.2;
  color: var(--night-blue-black);
}

.section-head__action {
  flex-shrink: 0;
  color: var(--primary-green);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(46, 139, 87, 0.3);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.section-head__action:hover {
  color: var(--deep-green);
  border-color: var(--primary-green);
}

.section--dark .section-head {
  border-top-color: rgba(198, 255, 0, 0.35);
}

.section--dark .section-head__title {
  color: #ffffff;
}

.section--dark .section-head__action {
  color: var(--fluorescent-yellow-green);
  border-color: rgba(198, 255, 0, 0.4);
}

/* ---------- 数据面板 ---------- */

.data-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(11, 27, 42, 0.05);
}

.data-panel__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--night-blue-black);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.data-panel__header::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--fluorescent-yellow-green);
  border-radius: 2px;
  transform: rotate(45deg);
  flex-shrink: 0;
}

.data-panel__title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #ffffff;
}

.data-panel__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(198, 255, 0, 0.75);
}

.data-panel__body {
  padding: 24px;
}

/* ---------- 数据大字 ---------- */

.stat-digit {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--night-blue-black);
}

.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--metal-gray);
  letter-spacing: 0.08em;
}

.section--dark .stat-digit {
  color: #ffffff;
}

/* ---------- 图片容器 ---------- */

.figure {
  position: relative;
  overflow: hidden;
  background: var(--night-blue-black);
  border-radius: 12px;
  aspect-ratio: 16 / 9;
}

.figure--ratio-4-3 {
  aspect-ratio: 4 / 3;
}

.figure--ratio-1-1 {
  aspect-ratio: 1 / 1;
}

.figure--placeholder {
  background-image:
    linear-gradient(135deg, rgba(198, 255, 0, 0.08) 25%, transparent 25%),
    linear-gradient(225deg, rgba(198, 255, 0, 0.08) 25%, transparent 25%),
    linear-gradient(135deg, var(--deep-green) 0%, var(--night-blue-black) 100%);
  background-size: 40px 40px, 40px 40px, 100% 100%;
}

.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 40px 16px 12px;
  background: linear-gradient(transparent, rgba(11, 27, 42, 0.85));
  color: #ffffff;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
}

/* ---------- 内页首屏 ---------- */

.page-hero {
  position: relative;
  padding: 64px 0 56px;
  background: var(--dark-blue);
  color: #ffffff;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(46, 139, 87, 0.28));
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0% 100%);
}

.page-hero::after {
  content: "";
  position: absolute;
  right: 6%;
  bottom: -36px;
  width: 96px;
  height: 96px;
  background: rgba(198, 255, 0, 0.18);
  transform: rotate(45deg);
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.page-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--fluorescent-yellow-green);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.page-hero__eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--china-red);
}

.page-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  max-width: 900px;
  color: #ffffff;
}

.page-hero__lead {
  margin-top: 18px;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(240, 244, 248, 0.72);
}

@media (min-width: 768px) {
  .page-hero {
    padding: 88px 0 72px;
  }

  .page-hero__inner {
    padding-inline: 32px;
  }
}

/* ---------- 面包屑 ---------- */

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--metal-gray);
}

.breadcrumbs a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumbs a:hover {
  color: var(--primary-green);
}

.breadcrumbs__sep {
  opacity: 0.5;
}

.breadcrumbs [aria-current="page"] {
  color: var(--night-blue-black);
  font-weight: 700;
}

.page-hero .breadcrumbs {
  color: rgba(240, 244, 248, 0.55);
}

.page-hero .breadcrumbs a:hover {
  color: var(--fluorescent-yellow-green);
}

.page-hero .breadcrumbs [aria-current="page"] {
  color: #ffffff;
}

/* ---------- 返回顶部 ---------- */

.to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 1500;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(198, 255, 0, 0.4);
  border-radius: 8px;
  background: rgba(11, 27, 42, 0.92);
  color: var(--fluorescent-yellow-green);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top::before {
  content: "↑";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
}

/* ---------- 减少动态偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}