/* ============================================================
   安博体育的方式 — 共享站点样式 /assets/site.css
   夜场墨绿长卷 · 荧光青记分牌
   ============================================================ */

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

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

body,
h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }

ul, ol { padding: 0; list-style: none; }

img, picture, svg { max-width: 100%; display: block; }

a { color: var(--neon); text-decoration: none; }

button { font: inherit; }

:root {
  --ink-950: #03140F;
  --ink-900: #051F1A;
  --ink-800: #0A352D;
  --ink-700: #126B5F;
  --neon: #27F5C4;
  --frost: #D9FFF5;
  --red: #FF4057;
  --yellow: #FFD447;
  --fog: #F2FAF7;
  --ash: #8DB8AC;

  --font-display: "Arial Narrow", "Helvetica Neue Condensed", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --shell: 1180px;
  --gutter: clamp(18px, 4vw, 48px);
  --radius-lg: 30px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --line: 1px solid rgba(141, 184, 172, 0.24);
  --shadow-lift: 0 24px 60px -30px rgba(0, 0, 0, 0.9);
  --ease-out: cubic-bezier(0.22, 0.7, 0.3, 1);
}

/* ---------- 基础排版 ---------- */

body {
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 84% -10%, rgba(39, 245, 196, 0.16), transparent 65%),
    radial-gradient(720px 460px at 4% 6%, rgba(18, 107, 95, 0.38), transparent 70%),
    repeating-linear-gradient(115deg, rgba(39, 245, 196, 0.035) 0 2px, transparent 2px 26px);
  background-attachment: fixed, fixed, fixed;
  color: var(--fog);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
  color: var(--frost);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.45rem); }

p { margin-bottom: 1em; }

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 容器 ---------- */

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

#main-content { display: block; }

/* ---------- 跳转链接 ---------- */

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 300;
  padding: 0.7em 1.3em;
  border-radius: 0 0 14px 14px;
  background: var(--neon);
  color: #04241D;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: top 0.2s var(--ease-out);
}

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

/* ---------- 头部 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
}

.utility-bar {
  background: var(--ink-950);
  border-bottom: 1px solid rgba(39, 245, 196, 0.14);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.utility-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 36px;
  padding-block: 6px;
  color: var(--ash);
}

.utility-live {
  display: flex;
  align-items: center;
  gap: 0.55em;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--frost);
}

.utility-live .num {
  color: var(--neon);
  font-size: 0.95rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 0 rgba(255, 64, 87, 0.6);
  animation: pulse-dot 2.4s ease-out infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(255, 64, 87, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(255, 64, 87, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 64, 87, 0); }
}

.utility-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

.version-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.18em 0.65em;
  border-radius: var(--radius-pill);
  background: rgba(255, 212, 71, 0.14);
  border: 1px solid rgba(255, 212, 71, 0.36);
  color: var(--yellow);
}

.utility-link {
  color: var(--neon);
  font-weight: 700;
  border-bottom: 1px solid transparent;
  transition: border-color 0.16s ease;
}

.utility-link:hover { border-bottom-color: var(--neon); }

.masthead {
  position: relative;
  background: rgba(5, 31, 26, 0.94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(39, 245, 196, 0.2);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.masthead__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  min-height: 74px;
}

.site-header[data-stuck="true"] .masthead {
  background: rgba(5, 31, 26, 0.99);
  box-shadow: 0 22px 46px -34px rgba(0, 0, 0, 1);
}

/* 品牌 */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--frost);
  text-decoration: none;
}

.brand__mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  padding: 0.38em 0.6em;
  border-radius: 10px;
  background: linear-gradient(140deg, rgba(39, 245, 196, 0.26), rgba(18, 107, 95, 0.14));
  border: 1px solid rgba(39, 245, 196, 0.45);
  color: var(--neon);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.16rem;
  letter-spacing: 0.02em;
  line-height: 1;
}

.brand__sub {
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--ash);
}

.brand:hover .brand__mark { background: rgba(39, 245, 196, 0.34); }

/* 主导航 */

.nav-primary { justify-self: end; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.nav-item { margin: 0; }

.nav-link {
  display: inline-block;
  padding: 0.5em 0.85em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  color: var(--frost);
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.nav-link:hover {
  background: rgba(39, 245, 196, 0.12);
  color: var(--neon);
}

.nav-link[aria-current="page"] {
  background: var(--neon);
  border-color: var(--neon);
  color: #04241D;
  font-weight: 800;
}

.nav-link[aria-current="page"]:hover {
  background: #5cffd6;
  border-color: #5cffd6;
  color: #04241D;
}

/* 头部操作区 */

.masthead__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-cta { white-space: nowrap; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 0.55em 0.95em;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(39, 245, 196, 0.4);
  background: rgba(39, 245, 196, 0.1);
  color: var(--frost);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
}

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--neon);
  transition: transform 0.2s var(--ease-out);
}

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

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

/* 滚动进度 */

.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: rgba(39, 245, 196, 0.1);
  overflow: hidden;
  pointer-events: none;
}

.scroll-meter__fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--neon), var(--yellow));
}

/* ---------- 通用按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.72em 1.35em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s var(--ease-out), box-shadow 0.18s ease;
}

.btn--primary {
  background: var(--neon);
  color: #04241D;
}

.btn--primary:hover {
  background: #5cffd6;
  transform: translateY(-1px);
  box-shadow: 0 14px 30px -16px rgba(39, 245, 196, 0.9);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(39, 245, 196, 0.45);
  color: var(--frost);
}

.btn--ghost:hover {
  background: rgba(39, 245, 196, 0.12);
  border-color: var(--neon);
  color: var(--frost);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.4vw, 28px);
}

/* ---------- 面包屑 ---------- */

.breadcrumb { margin-top: clamp(20px, 3vw, 32px); }

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--ash);
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li:not(:last-child)::after {
  content: "/";
  color: rgba(141, 184, 172, 0.5);
}

.breadcrumb-link {
  color: var(--ash);
  text-decoration: none;
  transition: color 0.16s ease;
}

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

/* ---------- 正文栏 ---------- */

.prose { max-width: 44em; }

.prose p { margin-bottom: 1.1em; }

.prose h2 { margin: 1.8em 0 0.6em; }

.prose h3 { margin: 1.5em 0 0.5em; }

.prose ul,
.prose ol {
  margin: 0 0 1.2em;
  padding-left: 1.3em;
}

.prose ul { list-style: disc; }

.prose ol { list-style: decimal; }

.prose li { margin-bottom: 0.45em; }

.prose a {
  color: var(--neon);
  border-bottom: 1px solid rgba(39, 245, 196, 0.5);
}

/* ---------- 章节头 ---------- */

.section-head {
  display: grid;
  gap: 10px;
  max-width: 44em;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.section-index {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  color: var(--neon);
}

.section-index::before {
  content: "";
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), transparent);
}

.section-title { margin: 0; }

.section-lede {
  margin: 0;
  max-width: 40em;
  color: var(--ash);
  font-size: 1rem;
}

/* ---------- 网格 ---------- */

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

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

.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------- 卡片与面板 ---------- */

.card {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid rgba(141, 184, 172, 0.22);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(10, 53, 45, 0.94), rgba(5, 31, 26, 0.94));
  box-shadow: var(--shadow-lift);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), rgba(39, 245, 196, 0));
}

.card__title {
  margin: 0 0 0.35em;
  font-size: clamp(1.08rem, 1.6vw, 1.35rem);
}

.card__meta {
  margin: 0 0 0.6em;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ash);
}

.card__body {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.75;
  color: rgba(217, 255, 245, 0.78);
}

.panel {
  padding: clamp(16px, 2vw, 24px);
  border: 1px solid rgba(141, 184, 172, 0.2);
  border-radius: var(--radius-md);
  background: rgba(10, 53, 45, 0.6);
}

/* ---------- 标签 ---------- */

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.26em 0.8em;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(141, 184, 172, 0.3);
  background: rgba(141, 184, 172, 0.14);
  color: var(--frost);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.chip--neon {
  background: rgba(39, 245, 196, 0.16);
  border-color: rgba(39, 245, 196, 0.45);
  color: var(--neon);
}

.chip--red {
  background: rgba(255, 64, 87, 0.16);
  border-color: rgba(255, 64, 87, 0.45);
  color: var(--red);
}

.chip--yellow {
  background: rgba(255, 212, 71, 0.16);
  border-color: rgba(255, 212, 71, 0.45);
  color: var(--yellow);
}

/* ---------- 图片容器 ---------- */

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(141, 184, 172, 0.22);
  border-radius: var(--radius-lg);
  background-color: var(--ink-800);
  background-image:
    radial-gradient(120% 90% at 18% 0%, rgba(39, 245, 196, 0.22), transparent 62%),
    radial-gradient(110% 110% at 92% 100%, rgba(18, 107, 95, 0.62), transparent 72%),
    repeating-linear-gradient(115deg, rgba(39, 245, 196, 0.08) 0 1px, transparent 1px 12px);
}

.media-frame > img,
.media-frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background: repeating-linear-gradient(115deg, rgba(217, 255, 245, 0.16) 0 1px, transparent 1px 10px);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }

/* ---------- 渐显（由 JS 启用） ---------- */

[data-reveal] {
  transition: opacity 0.6s ease, transform 0.6s var(--ease-out);
}

[data-reveal][data-reveal-ready="1"] {
  opacity: 0;
  transform: translateY(18px);
}

[data-reveal][data-reveal-ready="1"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  margin-top: clamp(60px, 9vw, 120px);
  padding-top: clamp(40px, 6vw, 72px);
  background: linear-gradient(180deg, var(--ink-900), var(--ink-950));
  border-top: 1px solid rgba(39, 245, 196, 0.24);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon), var(--yellow), var(--red), transparent);
  opacity: 0.75;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: clamp(24px, 4vw, 40px);
  border-bottom: var(--line);
}

.footer-brand__mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  padding: 0.36em 0.6em;
  border-radius: 10px;
  background: rgba(39, 245, 196, 0.14);
  border: 1px solid rgba(39, 245, 196, 0.42);
  color: var(--neon);
}

.footer-brand__line {
  margin-top: 0.75em;
  margin-bottom: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2vw, 1.4rem);
  letter-spacing: 0.01em;
  color: var(--frost);
}

.footer-grid {
  display: grid;
  grid-template-columns: 0.9fr 0.7fr 1.5fr 1.3fr;
  gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(28px, 4vw, 48px);
  border-bottom: var(--line);
}

.footer-heading {
  margin: 0 0 0.95em;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--neon);
}

.footer-links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  color: rgba(217, 255, 245, 0.82);
  font-size: 0.94rem;
  text-decoration: none;
  transition: color 0.16s ease, transform 0.16s var(--ease-out);
}

.footer-link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(141, 184, 172, 0.5);
  transition: background 0.16s ease;
}

.footer-link:hover {
  color: var(--neon);
  transform: translateX(3px);
}

.footer-link:hover::before { background: var(--neon); }

.footer-contact {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.footer-contact__item {
  display: grid;
  gap: 2px;
}

.footer-contact__key {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--ash);
}

.footer-contact__val {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--frost);
  word-break: break-word;
}

.footer-contact__val--mono {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.footer-note {
  margin: 0.9em 0 0;
  max-width: 34em;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ash);
}

.footer-change {
  margin: 0;
  max-width: 34em;
  padding-left: 14px;
  border-left: 3px solid var(--yellow);
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(217, 255, 245, 0.78);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 22px 30px;
  font-size: 0.8rem;
  color: var(--ash);
}

.footer-copy,
.footer-icp { margin: 0; }

.footer-icp {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--contact,
  .footer-col--change { grid-column: span 2; }
}

@media (max-width: 960px) {
  .utility-bar { display: none; }

  .masthead__inner {
    grid-template-columns: 1fr auto;
    gap: 12px;
    min-height: 64px;
  }

  .nav-primary {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 14px var(--gutter) 22px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    background: var(--ink-900);
    border-bottom: 1px solid rgba(39, 245, 196, 0.24);
    box-shadow: 0 34px 60px -32px rgba(0, 0, 0, 1);
  }

  .nav-primary[data-open="true"] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    display: block;
    padding: 0.85em 1em;
    border-radius: 14px;
    font-size: 1.05rem;
  }

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

  .nav-cta {
    padding: 0.55em 1em;
    font-size: 0.85rem;
  }
}

@media (max-width: 900px) {
  .grid--2,
  .grid--3 { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col--contact,
  .footer-col--change { grid-column: auto; }
}

@media (max-width: 600px) {
  :root { --gutter: 16px; }

  body { font-size: 16px; }

  .brand__mark { font-size: 0.68rem; }

  .brand__text { font-size: 1.02rem; }

  .brand__sub { font-size: 0.6rem; letter-spacing: 0.24em; }

  .footer-top { align-items: flex-start; }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .pulse-dot { animation: none; }

  [data-reveal],
  [data-reveal][data-reveal-ready="1"] {
    opacity: 1 !important;
    transform: none !important;
  }
}