/* ============================================================
   365赔率站 · 共享样式表  /assets/site.css
   夜间赔率观察室：深墨蓝底 / 荧光青路径 / 琥珀金版本标记
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 7.75rem;
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; }

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
}

a { color: inherit; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #0B1622;
  --surface: #101F2E;
  --raise: #172B3D;
  --line: #2A3A4A;
  --paper: #F5F1E8;
  --muted: #8FA3B8;
  --cyan: #55E6D2;
  --amber: #F2B84B;
  --moss: #6F8F7A;
  --clay: #B56B4F;

  --line-soft: rgba(42, 58, 74, 0.6);
  --glass: rgba(23, 43, 61, 0.55);

  --font-sans: Inter, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1240px;
  --gutter: clamp(1.15rem, 4vw, 3.5rem);
  --r: 3px;
  --dur: 180ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 数据网格底层纹理 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(42, 58, 74, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 58, 74, 0.28) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  opacity: 0.32;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.15) 78%, transparent 100%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.15) 78%, transparent 100%);
}

main {
  position: relative;
  z-index: 1;
  flex: 1 0 auto;
  display: block;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
}

h1 { font-size: clamp(2.8rem, 7vw, 6.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.6rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); font-weight: 700; letter-spacing: -0.02em; }

p { max-width: 68ch; }

b, strong { font-weight: 700; color: var(--paper); }

::selection {
  background: rgba(85, 230, 210, 0.28);
  color: var(--paper);
}

/* ---------- 4. 焦点与可访问性 ---------- */
:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

:where(a, button, summary, [tabindex]):focus:not(:focus-visible) {
  outline: none;
}

.skip-link {
  position: absolute;
  left: max(1rem, var(--gutter));
  top: -4rem;
  z-index: 200;
  padding: 0.6rem 1.1rem;
  background: var(--cyan);
  color: #062028;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: var(--r);
  transition: top var(--dur) var(--ease);
}

.skip-link:focus {
  top: 0.75rem;
}

/* ---------- 5. 通用容器与工具类 ---------- */
.wrap {
  width: min(calc(100% - (var(--gutter) * 2)), var(--wrap));
  margin-inline: auto;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

/* 十二列错位网格：左 3 / 右 8 / 呼吸位 1 */
.split {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 920px) {
  .split {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr) minmax(0, 1fr);
    align-items: start;
  }
  .split__rail {
    grid-column: 1;
    position: sticky;
    top: 8rem;
    align-self: start;
  }
  .split__main { grid-column: 2; }
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--raise);
  color: var(--paper);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.btn:hover {
  background: #1d3448;
  border-color: rgba(85, 230, 210, 0.55);
  color: var(--cyan);
  transform: translateY(-1px);
}

.btn:active { transform: translateY(0); }

.btn--accent {
  background: rgba(242, 184, 75, 0.09);
  border-color: rgba(242, 184, 75, 0.42);
  color: var(--amber);
}

.btn--accent:hover {
  background: rgba(242, 184, 75, 0.18);
  border-color: var(--amber);
  color: var(--amber);
}

/* ---------- 7. 版本胶囊 / 标签 ---------- */
.version-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.55rem;
  border: 1px solid rgba(242, 184, 75, 0.35);
  border-radius: 2px;
  background: rgba(242, 184, 75, 0.07);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.5;
  white-space: nowrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.16rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(23, 43, 61, 0.6);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.6;
}

.tag--cyan { color: var(--cyan); border-color: rgba(85, 230, 210, 0.4); background: rgba(85, 230, 210, 0.08); }
.tag--amber { color: var(--amber); border-color: rgba(242, 184, 75, 0.4); background: rgba(242, 184, 75, 0.08); }
.tag--moss { color: var(--moss); border-color: rgba(111, 143, 122, 0.45); background: rgba(111, 143, 122, 0.1); }
.tag--clay { color: var(--clay); border-color: rgba(181, 107, 79, 0.45); background: rgba(181, 107, 79, 0.1); }

/* ---------- 8. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.crumbs a {
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.crumbs a:hover { color: var(--cyan); }

.crumbs__sep {
  color: var(--line);
  font-size: 0.72rem;
}

/* ---------- 9. 分节标题 ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1.5rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.section-head__title {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-head__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 10. 内容面板 ---------- */
.panel {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: clamp(1.15rem, 2.6vw, 1.9rem);
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.panel:hover {
  border-color: rgba(85, 230, 210, 0.45);
  background: #12243a;
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -22px rgba(0, 0, 0, 0.9);
}

.panel--glass {
  background: var(--glass);
  border-color: rgba(143, 163, 184, 0.22);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  backdrop-filter: blur(10px) saturate(120%);
}

.panel--glass:hover {
  background: rgba(23, 43, 61, 0.72);
  border-color: rgba(85, 230, 210, 0.5);
}

/* ---------- 11. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r);
  aspect-ratio: 16 / 10;
  background-color: var(--surface);
  background-image:
    radial-gradient(120% 90% at 12% 0%, rgba(85, 230, 210, 0.13), transparent 58%),
    radial-gradient(100% 80% at 88% 100%, rgba(242, 184, 75, 0.1), transparent 62%),
    linear-gradient(160deg, #14283a 0%, #0d1a26 100%);
}

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

.media--wide { aspect-ratio: 21 / 9; }

.media--grid::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(42, 58, 74, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 58, 74, 0.55) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.55;
}

/* ---------- 12. 目录高亮协议 ---------- */
[data-toc] a {
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

[data-toc] a[aria-current="true"] {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ============================================================
   13. 页头
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(11, 22, 34, 0.98) 0%, rgba(11, 22, 34, 0.92) 100%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
  backdrop-filter: blur(16px) saturate(130%);
  border-bottom: 1px solid var(--line);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(85, 230, 210, 0.15) 34%, rgba(242, 184, 75, 0.85) 72%, transparent 100%);
  opacity: 0.8;
  pointer-events: none;
}

/* --- 上层：品牌说明 --- */
.masthead {
  border-bottom: 1px solid rgba(42, 58, 74, 0.55);
}

.masthead__inner {
  width: min(calc(100% - (var(--gutter) * 2)), var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2vw, 1.5rem);
  min-height: 3.3rem;
  padding-block: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  flex: 0 0 auto;
  text-decoration: none;
}

.brand__name {
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

.brand__meta {
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.brand:hover .brand__name { color: var(--cyan); }

.brand__line {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  padding-left: clamp(0.7rem, 2vw, 1.5rem);
  border-left: 1px solid var(--line);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- 移动开关 --- */
.nav-toggle {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 0.55rem;
  padding: 0.48rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--raise);
  color: var(--paper);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.nav-toggle:hover {
  border-color: rgba(85, 230, 210, 0.55);
  background: #1b3246;
}

.nav-toggle__label { line-height: 1; }

.nav-toggle__icon {
  position: relative;
  display: block;
  width: 15px;
  height: 11px;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

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

.site-header[data-open] .nav-toggle__icon::before { transform: translateY(4.75px) rotate(45deg); }
.site-header[data-open] .nav-toggle__icon::after { transform: translateY(-4.75px) rotate(-45deg); }

/* --- 下层：栏目导航 --- */
.navbar__inner {
  width: min(calc(100% - (var(--gutter) * 2)), var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
  min-height: 3.5rem;
  padding-block: 0.3rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.25rem);
  flex: 1 1 auto;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 1.9rem);
}

.nav-list--primary a {
  position: relative;
  display: block;
  padding: 0.4rem 0;
  color: var(--paper);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.nav-list--primary a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}

.nav-list--primary a:hover { color: var(--cyan); }
.nav-list--primary a:hover::after { transform: scaleX(1); }

.nav-list--primary a[aria-current="page"] { color: var(--cyan); }
.nav-list--primary a[aria-current="page"]::after { transform: scaleX(1); }

.nav-list--utility {
  margin-left: auto;
  gap: 1.15rem;
}

.nav-list--utility a {
  display: block;
  padding: 0.3rem 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.nav-list--utility a:hover { color: var(--amber); }
.nav-list--utility a[aria-current="page"] { color: var(--cyan); }

.navbar__tools {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex: 0 0 auto;
}

/* --- 滚动进度条 --- */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.scroll-meter__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan) 0%, #7fead9 40%, var(--amber) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 80ms linear;
}

/* ============================================================
   14. 页脚
   ============================================================ */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: auto;
  background: linear-gradient(180deg, #0e1c29 0%, #0B1622 100%);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 16%, rgba(242, 184, 75, 0.7) 56%, transparent 92%);
  opacity: 0.6;
  pointer-events: none;
}

.footer-grid {
  width: min(calc(100% - (var(--gutter) * 2)), var(--wrap));
  margin-inline: auto;
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.75rem, 4vw, 2.75rem);
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 760px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr) minmax(0, 0.8fr);
  }
}

.footer-brand .brand { margin-bottom: 1rem; }

.brand--footer .brand__name { font-size: 1.15rem; }

.footer-brand__summary {
  max-width: 46ch;
  margin-bottom: 1rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--muted);
}

.footer-brand__contact {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--amber);
  word-break: break-word;
}

.footer-col__title {
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.footer-col__list {
  display: grid;
  gap: 0.5rem;
}

.footer-col__list a {
  display: inline-block;
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.footer-col__list a:hover {
  color: var(--cyan);
  transform: translateX(3px);
}

.footer-base {
  width: min(calc(100% - (var(--gutter) * 2)), var(--wrap));
  margin-inline: auto;
  padding-block: 1.1rem 1.6rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.footer-base__copy { margin-inline-end: auto; }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.2rem;
}

.footer-legal a {
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.footer-legal a:hover { color: var(--cyan); }

.footer-base__icp { color: var(--muted); opacity: 0.85; }

/* ============================================================
   15. 响应式
   ============================================================ */
@media (max-width: 1119px) and (min-width: 900px) {
  .nav-list--utility { display: none; }
}

@media (max-width: 899px) {
  html { scroll-padding-top: 4.5rem; }

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

  .navbar {
    display: none;
    border-top: 1px solid var(--line);
    background: rgba(13, 26, 38, 0.98);
  }

  .site-header[data-open] .navbar { display: block; }

  .navbar__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    min-height: 0;
    padding-block: 0.85rem 1rem;
  }

  .site-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .nav-list--primary {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    width: 100%;
  }

  .nav-list--primary a {
    padding: 0.8rem 0.15rem;
    font-size: 1rem;
    border-bottom: 1px solid rgba(42, 58, 74, 0.55);
  }

  .nav-list--primary a::after { display: none; }

  .nav-list--primary a[aria-current="page"] { color: var(--cyan); }

  .nav-list--utility {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.85rem 1.25rem;
    margin-left: 0;
    padding-block: 0.95rem 0;
  }

  .navbar__tools { display: none; }

  .site-header[data-open] .navbar__tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 0.95rem;
    border-top: 1px solid rgba(42, 58, 74, 0.55);
  }

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

  .footer-base__copy { margin-inline-end: 0; }
}

@media (max-width: 780px) {
  .brand__line { display: none; }
}

@media (max-width: 480px) {
  .brand__meta { display: none; }
  .footer-grid { padding-block: 2rem 1.5rem; }
}

/* ============================================================
   16. 降低动态效果偏好
   ============================================================ */
@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;
  }

  .panel:hover,
  .btn:hover,
  .footer-col__list a:hover { transform: none; }

  .scroll-meter__bar { transition: none; }
}