/* ============================================================
   金博体育 · 共享站点样式 /assets/site.css
   夜场记分牌体系：深墨绿底 + 荧光青数据 + 琥珀金归档
   ============================================================ */

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

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

body {
  margin: 0;
  padding-top: var(--topbar-h);
  background-color: var(--c-ink);
  color: var(--c-paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; }
main { display: block; }
hr { border: 0; }

:root {
  --c-ink: #08120E;
  --c-surface: #0E1A15;
  --c-band: #14251E;
  --c-line: #244035;
  --c-cyan: #14F2C8;
  --c-mist: #8FFBE4;
  --c-gold: #FFB020;
  --c-sand: #FFD79A;
  --c-paper: #F1F7F3;
  --c-muted: #9DB3A9;

  --rail-w: 232px;
  --topbar-h: 60px;

  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --scroll-progress: 0;
}

/* ---------- 排版基座 ---------- */
h1, h2, h3 { font-weight: 800; letter-spacing: -.02em; line-height: 1.12; }
h1 { font-size: clamp(32px, 5.2vw, 60px); line-height: 1.05; }
h2 { font-size: clamp(24px, 3.4vw, 38px); }
h3 { font-size: clamp(18px, 2.2vw, 22px); letter-spacing: -.01em; }

strong { font-weight: 700; }

::selection {
  background: rgba(20, 242, 200, .28);
  color: var(--c-paper);
}

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---------- 通用布局 ---------- */
.wrap {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 56px);
}

.section { padding-block: clamp(40px, 6vw, 88px); }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 32px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 820px) {
  .grid--split { grid-template-columns: 5fr 7fr; align-items: start; }
}

.prose { max-width: 34em; }
.prose p + p { margin-top: .9em; }
.prose strong { color: var(--c-cyan); font-weight: 600; }

.measure { max-width: 34em; }

/* ---------- 文字资产 ---------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-muted);
  line-height: 1.6;
}

.eyebrow::before {
  content: "";
  flex: none;
  width: 22px;
  height: 2px;
  background: var(--c-gold);
}

.display {
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.05;
  font-size: clamp(34px, 5.4vw, 64px);
}

.lede {
  max-width: 34em;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.75;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1;
  color: var(--c-cyan);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-muted);
  line-height: 1.4;
}

.tag--gold { color: var(--c-sand); border-color: rgba(255, 176, 32, .45); }
.tag--cyan { color: var(--c-cyan); border-color: rgba(20, 242, 200, .4); }

.rule {
  height: 1px;
  background: var(--c-line);
  border: 0;
  margin: 0;
}

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-muted);
}

.breadcrumbs a {
  color: var(--c-muted);
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.breadcrumbs a:hover { color: var(--c-cyan); border-bottom-color: var(--c-cyan); }
.breadcrumbs [aria-current="page"] { color: var(--c-paper); }

/* ---------- 宽幅数据带 ---------- */
.data-band {
  background-color: var(--c-band);
  border-block: 1px solid var(--c-line);
  padding-block: clamp(28px, 4vw, 52px);
}

/* ---------- 步骤条（技能树式服务路径） ---------- */
.steps {
  counter-reset: step;
  display: grid;
  gap: 0;
}

.step {
  position: relative;
  padding: 18px 0 18px 48px;
  border-top: 1px solid var(--c-line);
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.step:last-child { border-bottom: 1px solid var(--c-line); }

.step-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-paper);
  letter-spacing: .01em;
}

.step-text {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  max-width: 34em;
}

/* ---------- 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  background:
    radial-gradient(120% 90% at 12% 8%, rgba(20, 242, 200, .14), transparent 62%),
    linear-gradient(148deg, #14251E 0%, #0E1A15 58%, #0A1712 100%);
}

.media-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 2px;
  background: var(--c-cyan);
  z-index: 1;
}

.media-frame::after {
  content: "";
  position: absolute;
  right: 14px;
  bottom: 14px;
  width: 28px;
  height: 12px;
  background-image: repeating-linear-gradient(90deg, var(--c-line) 0 2px, transparent 2px 7px);
  z-index: 1;
}

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

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--c-muted);
}

/* ---------- 按钮族 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: .68em 1.15em;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition:
    background-color .16s var(--ease),
    color .16s var(--ease),
    border-color .16s var(--ease);
}

.btn--gold {
  background-color: var(--c-gold);
  border-color: var(--c-gold);
  color: #10180F;
}
.btn--gold:hover { background-color: var(--c-sand); border-color: var(--c-sand); }

.btn--cyan {
  background-color: var(--c-cyan);
  border-color: var(--c-cyan);
  color: #04140F;
}
.btn--cyan:hover { background-color: var(--c-mist); border-color: var(--c-mist); }

.btn--ghost {
  background-color: transparent;
  border-color: var(--c-line);
  color: var(--c-paper);
}
.btn--ghost:hover { color: var(--c-cyan); border-color: var(--c-cyan); }

.btn--link {
  min-height: 0;
  padding: 0 0 3px;
  border: 0;
  border-radius: 0;
  border-bottom: 1px solid rgba(20, 242, 200, .4);
  background-color: transparent;
  color: var(--c-cyan);
}
.btn--link:hover { color: var(--c-mist); border-bottom-color: var(--c-mist); }

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 16px;
  border-radius: 4px;
  background-color: var(--c-cyan);
  color: #04140F;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform .16s var(--ease);
}

.skip-link:focus { transform: translateY(0); }

/* ============================================================
   共享头部 / 侧轨
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  height: var(--topbar-h);
  padding-inline: 16px;
  background-color: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .2s var(--ease), border-color .2s var(--ease);
}

.site-header[data-scrolled] {
  box-shadow: 0 10px 30px rgba(0, 0, 0, .38);
  border-bottom-color: var(--c-line);
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--c-paper);
}

.brand-mark {
  position: relative;
  flex: none;
  display: block;
  width: 28px;
  height: 28px;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background:
    linear-gradient(158deg, rgba(20, 242, 200, .22), transparent 68%);
  transition: border-color .16s var(--ease);
}

.brand-mark::before {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  top: 50%;
  height: 2px;
  background-color: var(--c-cyan);
  transform: translateY(-50%);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: 7px;
  top: 6px;
  width: 2px;
  height: 9px;
  background-color: var(--c-gold);
}

.brand:hover .brand-mark { border-color: var(--c-cyan); }

.brand-text { display: block; min-width: 0; }

.brand-name {
  display: block;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.1;
}

.brand-sub {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--c-muted);
  line-height: 1.3;
}

/* 移动菜单按钮 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-paper);
  cursor: pointer;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.nav-toggle:hover { border-color: var(--c-cyan); color: var(--c-cyan); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background-color: var(--c-cyan);
  transition: transform .18s var(--ease);
}

.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { bottom: 0; }

.site-header[data-open] .nav-toggle-bars::before { transform: translateY(4px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bars::after { transform: translateY(-4.5px) rotate(-45deg); }

.nav-toggle-text { line-height: 1; }

/* 遮罩 */
.rail-scrim {
  position: fixed;
  inset: var(--topbar-h) 0 0 0;
  z-index: 1;
  background-color: rgba(4, 12, 9, .74);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s var(--ease);
}

.site-header[data-open] .rail-scrim {
  opacity: 1;
  pointer-events: auto;
}

/* 侧轨 / 抽屉 */
.rail {
  position: fixed;
  top: var(--topbar-h);
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  width: min(86vw, 340px);
  padding: 22px 20px calc(22px + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  background-color: var(--c-surface);
  border-left: 1px solid var(--c-line);
  transform: translateX(102%);
  visibility: hidden;
  transition: transform .2s var(--ease), visibility .2s var(--ease);
}

.site-header[data-open] .rail {
  transform: translateX(0);
  visibility: visible;
}

.rail-head { padding-bottom: 16px; border-bottom: 1px solid var(--c-line); }

.rail-eyebrow {
  font-size: 11px;
  letter-spacing: .12em;
  line-height: 1.7;
  color: var(--c-muted);
}

.rail-tagline {
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-sand);
  line-height: 1.6;
}

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-block: 18px 22px;
}

.rail-link {
  position: relative;
  display: flex;
  align-items: center;
  padding: 10px 0 10px 16px;
  font-size: 15px;
  letter-spacing: .01em;
  line-height: 1.4;
  color: var(--c-muted);
  transition: color .16s var(--ease);
}

.rail-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 5px;
  height: 1px;
  background-color: var(--c-line);
  transform: translateY(-50%);
  transition: width .16s var(--ease), background-color .16s var(--ease), height .16s var(--ease);
}

.rail-link:hover { color: var(--c-paper); }
.rail-link:hover::before { width: 11px; background-color: var(--c-cyan); }

.rail-link[aria-current="page"] {
  color: var(--c-cyan);
  font-weight: 600;
}

.rail-link[aria-current="page"]::before {
  width: 16px;
  height: 2px;
  background-color: var(--c-cyan);
}

.rail-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 18px;
}

.rail-actions .btn { width: 100%; }

.rail-note {
  padding-left: 10px;
  border-left: 2px solid var(--c-line);
  font-size: 11px;
  letter-spacing: .08em;
  line-height: 1.7;
  color: var(--c-muted);
  margin-bottom: 20px;
}

.rail-foot {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--c-line);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-muted);
}

.rail-icp { font-family: var(--font-mono); letter-spacing: .02em; }
.rail-copy { color: var(--c-muted); }

/* 滚动进度 */
.rail-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  pointer-events: none;
  z-index: 3;
}

.rail-meter-fill {
  display: block;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(90deg, var(--c-cyan), var(--c-mist));
  transform: scaleX(var(--scroll-progress));
  transform-origin: left center;
  transition: transform .08s linear;
}

/* ---------- 桌面：竖轨 ---------- */
@media (min-width: 960px) {
  body {
    padding-top: 0;
    padding-left: var(--rail-w);
  }

  .site-header {
    right: auto;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: var(--rail-w);
    height: 100dvh;
    padding-inline: 0;
    border-bottom: 0;
    border-right: 1px solid var(--c-line);
  }

  .site-header[data-scrolled] { box-shadow: none; }

  .header-top {
    display: block;
    padding: 26px 22px 16px;
  }

  .nav-toggle { display: none; }

  .rail-scrim { display: none; }

  .rail {
    position: static;
    flex: 1 1 auto;
    width: auto;
    min-height: 0;
    padding: 0 22px 20px;
    overflow-y: auto;
    background-color: transparent;
    border-left: 0;
    transform: none;
    visibility: visible;
    transition: none;
  }

  .rail-link { font-size: 14.5px; padding: 9px 0 9px 15px; }

  .rail-meter {
    left: auto;
    top: 0;
    bottom: 0;
    width: 2px;
    height: auto;
  }

  .rail-meter-fill {
    width: 100%;
    height: 100%;
    background-image: linear-gradient(180deg, var(--c-cyan), var(--c-mist));
    transform: scaleY(var(--scroll-progress));
    transform-origin: top center;
  }
}

/* ============================================================
   共享页脚
   ============================================================ */
.site-footer {
  margin-top: clamp(48px, 8vw, 96px);
  background-color: var(--c-surface);
  border-top: 1px solid var(--c-line);
  color: var(--c-paper);
}

.footer-wrap {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding: clamp(36px, 6vw, 72px) clamp(18px, 4vw, 56px) clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
}

@media (min-width: 880px) {
  .footer-wrap { grid-template-columns: 5fr 7fr; }
}

.footer-brand {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.1;
}

.footer-brand-sub {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--c-muted);
}

.footer-claim {
  margin-top: 18px;
  max-width: 22em;
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-sand);
}

.footer-lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 32px);
  align-content: start;
}

@media (min-width: 720px) {
  .footer-cols { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.footer-col-title {
  position: relative;
  padding-top: 12px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-muted);
  line-height: 1.5;
}

.footer-col-title::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 18px;
  height: 2px;
  background-color: var(--c-gold);
}

.footer-links {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.footer-link {
  display: inline-block;
  padding-block: 3px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.footer-link:hover {
  color: var(--c-paper);
  border-bottom-color: var(--c-cyan);
}

.footer-base {
  background-color: var(--c-ink);
  border-top: 1px solid var(--c-line);
}

.footer-base-inner {
  max-width: 1180px;
  margin-inline: auto;
  padding: 22px clamp(18px, 4vw, 56px) 28px;
  display: grid;
  gap: 12px;
}

.footer-contact {
  max-width: 62em;
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .01em;
  color: var(--c-muted);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--c-muted);
}

.footer-dot { color: var(--c-line); }

/* ============================================================
   无障碍与偏好
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  .skip-link { transition: none; }
}