/* ==========================================================================
   江南体育 · 共享样式表  /assets/site.css
   深色报头 + 玻璃数据带 + 纸张阅读区，非对称对角线构图的公共底座
   ========================================================================== */

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

:root {
  --jn-ink: #0E2A33;
  --jn-night: #08161F;
  --jn-teal: #1E5A6B;
  --jn-gold: #D9A94C;
  --jn-gold-deep: #9C6F22;
  --jn-red: #E23B3B;
  --jn-cyan: #38F2D6;
  --jn-paper: #F4EFE4;
  --jn-mist: #EDF2F1;
  --jn-slate: #4A5C63;

  --jn-line: rgba(14, 42, 51, .14);
  --jn-line-dark: rgba(237, 242, 241, .16);
  --jn-glass: rgba(8, 22, 31, .78);

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

  --jn-ease: cubic-bezier(.2, .8, .2, 1);
  --jn-gutter: clamp(18px, 4vw, 48px);
  --jn-radius: 3px;
  --jn-head-h: 118px;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 128px;
}

body {
  margin: 0;
  background: var(--jn-paper);
  color: var(--jn-slate);
  font-family: var(--jn-sans);
  font-size: 17px;
  line-height: 1.78;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.jn-no-scroll,
html.nav-open body { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4 { margin: 0; font-weight: 900; line-height: 1.22; letter-spacing: -.02em; color: var(--jn-ink); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
strong { color: var(--jn-ink); font-weight: 700; }

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

/* --------------------------------------------------------------------------
   跳至主要内容
   -------------------------------------------------------------------------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: var(--jn-gutter);
  z-index: 300;
  padding: 12px 22px;
  background: var(--jn-gold);
  color: var(--jn-night);
  font-family: var(--jn-mono);
  font-size: 13px;
  letter-spacing: .12em;
  border-radius: 2px;
  transition: top .22s var(--jn-ease);
}
.skip-link:focus { top: 14px; }

/* --------------------------------------------------------------------------
   报头
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
}

.header-top {
  position: relative;
  z-index: 6;
  overflow: hidden;
  max-height: 260px;
  background:
    radial-gradient(120% 180% at 78% -30%, rgba(56, 242, 214, .12), transparent 58%),
    radial-gradient(90% 140% at 6% 0%, rgba(217, 169, 76, .10), transparent 60%),
    linear-gradient(180deg, #10313C 0%, #0E2A33 42%, #091B24 100%);
  color: var(--jn-mist);
  border-bottom: 1px solid rgba(217, 169, 76, .34);
  transition: max-height .52s var(--jn-ease), opacity .3s ease;
}

.site-header.is-scrolled .header-top {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

html.nav-open .header-top{
  max-height: 420px;
  opacity: 1;
  pointer-events: auto;
}

/* 报头三栏网格：品牌严格居中 */
.masthead {
  width: min(1240px, 92vw);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  padding-block: clamp(16px, 2.2vw, 24px) clamp(10px, 1.2vw, 14px);
}

.masthead-aside {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 20px);
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .14em;
}
.masthead-aside--start { justify-self: start; }
.masthead-aside--end { justify-self: end; }

.masthead-mark {
  color: rgba(217, 169, 76, .62);
  letter-spacing: .32em;
  font-size: 13px;
  user-select: none;
}

.brand {
  justify-self: center;
  position: relative;
  padding: 2px 2px 8px;
  font-family: var(--jn-sans);
  font-weight: 900;
  font-size: clamp(1.4rem, 2.6vw, 1.95rem);
  letter-spacing: .2em;
  color: var(--jn-mist);
  white-space: nowrap;
}
.brand::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%) skewX(-3deg);
  width: 68px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--jn-gold) 30%, var(--jn-gold) 70%, transparent);
}
.brand:hover { color: var(--jn-gold); }

.version-tag {
  padding: 4px 9px;
  border: 1px solid rgba(56, 242, 214, .42);
  border-radius: 2px;
  color: var(--jn-cyan);
  font-variant-numeric: tabular-nums;
}

.header-account {
  padding-bottom: 2px;
  color: rgba(237, 242, 241, .78);
  border-bottom: 1px solid transparent;
  transition: color .24s ease, border-color .24s ease;
}
.header-account:hover,
.header-account:focus-visible { color: var(--jn-gold); border-bottom-color: var(--jn-gold); }

/* 菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  height: 42px;
  padding: 0 13px;
  border: 1px solid rgba(237, 242, 241, .26);
  border-radius: 2px;
  color: var(--jn-mist);
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .16em;
  transition: border-color .24s ease, color .24s ease;
}
.nav-toggle:hover { border-color: var(--jn-gold); color: var(--jn-gold); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 12px;
  flex: 0 0 auto;
}
.nav-toggle-bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .3s var(--jn-ease), opacity .2s ease;
}
.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 5px; }
.nav-toggle-bars span:nth-child(3) { top: 10px; }

[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

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

/* 导航行 */
.site-nav {
  width: min(1240px, 92vw);
  margin-inline: auto;
  padding-bottom: clamp(12px, 1.6vw, 18px);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(6px, 2.2vw, 34px);
}

.nav-item { display: block; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 2px;
  font-size: 15px;
  letter-spacing: .07em;
  color: rgba(237, 242, 241, .82);
  transition: color .22s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--jn-gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .28s var(--jn-ease);
}
.nav-link:hover { color: var(--jn-mist); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--jn-gold); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-index {
  display: none;
  font-family: var(--jn-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--jn-gold);
  font-variant-numeric: tabular-nums;
}

/* 滚动吸附的玻璃数据带 */
.glass-bar {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 3;
  background: var(--jn-glass);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid rgba(56, 242, 214, .2);
  color: var(--jn-mist);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-100%);
  transition: opacity .3s ease, transform .46s var(--jn-ease), visibility .46s;
}
.site-header.is-scrolled .glass-bar {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.glass-inner {
  width: min(1240px, 92vw);
  margin-inline: auto;
  min-height: 58px;
  padding-block: 8px;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2.2vw, 28px);
  font-family: var(--jn-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
}

.glass-item { display: inline-flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.glass-label { color: rgba(237, 242, 241, .6); }
.glass-value { color: var(--jn-cyan); font-size: 15px; }

.glass-sep {
  width: 1px;
  height: 18px;
  background: rgba(237, 242, 241, .2);
  flex: 0 0 auto;
}

.glass-account {
  margin-left: auto;
  padding-bottom: 2px;
  color: rgba(237, 242, 241, .78);
  border-bottom: 1px solid transparent;
  white-space: nowrap;
  transition: color .24s ease, border-color .24s ease;
}
.glass-account:hover { color: var(--jn-gold); border-bottom-color: var(--jn-gold); }

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  overflow: hidden;
  padding-top: clamp(48px, 7vw, 88px);
  background:
    radial-gradient(120% 130% at 12% 8%, rgba(30, 90, 107, .5), transparent 58%),
    radial-gradient(90% 120% at 88% 0%, rgba(217, 169, 76, .12), transparent 52%),
    linear-gradient(180deg, #0B1E28 0%, #08161F 100%);
  color: rgba(237, 242, 241, .72);
}

.footer-grid {
  position: relative;
  z-index: 1;
  width: min(1240px, 92vw);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.35fr 1fr 1.15fr;
  gap: clamp(26px, 4vw, 64px);
  padding-bottom: clamp(34px, 5vw, 60px);
  border-bottom: 1px solid var(--jn-line-dark);
}

.footer-col { min-width: 0; }

.footer-brand-name {
  font-family: var(--jn-sans);
  font-weight: 900;
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  letter-spacing: .18em;
  color: var(--jn-mist);
  margin-bottom: 14px;
}

.footer-tagline {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(237, 242, 241, .68);
  max-width: 42ch;
}

.footer-icp {
  margin-top: 18px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(217, 169, 76, .8);
}

.footer-title {
  margin-bottom: 18px;
  font-family: var(--jn-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--jn-gold);
}

.footer-list { display: grid; gap: 10px; }

.footer-link {
  display: inline-block;
  font-size: 15px;
  color: rgba(237, 242, 241, .72);
  transition: color .22s ease, transform .22s var(--jn-ease);
}
.footer-link:hover { color: var(--jn-gold); transform: translateX(3px); }

.footer-contact-item {
  display: grid;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(237, 242, 241, .14);
}

.footer-contact-label {
  font-family: var(--jn-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--jn-cyan);
}

.footer-contact-value {
  font-family: var(--jn-mono);
  font-size: 13.5px;
  letter-spacing: .04em;
  color: rgba(237, 242, 241, .86);
  word-break: break-all;
}

.footer-note {
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(237, 242, 241, .58);
}

.footer-bottom {
  position: relative;
  z-index: 1;
  width: min(1240px, 92vw);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 26px;
  padding: 20px 0 30px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(237, 242, 241, .48);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   布局容器与章节
   -------------------------------------------------------------------------- */
.container { width: min(1180px, 92vw); margin-inline: auto; }
.container--narrow { width: min(820px, 92vw); margin-inline: auto; }
.container--wide { width: min(1320px, 94vw); margin-inline: auto; }

.section { position: relative; padding: clamp(52px, 7vw, 104px) 0; }
.section--paper { background: var(--jn-paper); }
.section--mist { background: var(--jn-mist); }
.section--deep { background: var(--jn-teal); color: rgba(237, 242, 241, .84); }
.section--dark {
  background:
    radial-gradient(110% 140% at 85% -10%, rgba(56, 242, 214, .1), transparent 55%),
    linear-gradient(165deg, #0E2A33 0%, #0A1E27 60%, #08161F 100%);
  color: rgba(237, 242, 241, .76);
}
.section--deep h2, .section--deep h3,
.section--dark h2, .section--dark h3 { color: var(--jn-mist); }

.section-head { position: relative; margin-bottom: clamp(26px, 3.6vw, 48px); max-width: 68ch; }

.section-index {
  display: block;
  margin-bottom: 10px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--jn-gold-deep);
  font-variant-numeric: tabular-nums;
}
.section--dark .section-index,
.section--deep .section-index { color: var(--jn-gold); }

.section-title { font-size: clamp(1.85rem, 3.6vw, 2.75rem); }

.section-lead {
  margin-top: 14px;
  font-size: 17px;
  color: var(--jn-slate);
}
.section--dark .section-lead,
.section--deep .section-lead { color: rgba(237, 242, 241, .74); }

/* 分节符：球场中线 / 刻度线 */
.field-divider {
  position: relative;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(30, 90, 107, .55) 16%, rgba(30, 90, 107, .55) 84%, transparent);
}
.field-divider::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--jn-gold);
  transform: translateX(-50%);
}

.tick-divider {
  height: 1px;
  background-image: repeating-linear-gradient(90deg, var(--jn-line) 0 22px, transparent 22px 32px);
}
.section--dark .tick-divider,
.section--deep .tick-divider {
  background-image: repeating-linear-gradient(90deg, rgba(237, 242, 241, .22) 0 22px, transparent 22px 32px);
}

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6em;
  padding: .82em 1.6em;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color .25s ease, color .25s ease, border-color .25s ease, transform .25s var(--jn-ease);
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--jn-red);
  color: #fff;
  box-shadow: 0 16px 34px -18px rgba(226, 59, 59, .8);
}
.btn-primary:hover { background: #c62f2f; }

.btn-gold {
  background: var(--jn-gold);
  color: var(--jn-night);
}
.btn-gold:hover { background: #e6b95e; }

.btn-ghost {
  background: rgba(237, 242, 241, .06);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-color: rgba(237, 242, 241, .32);
  color: var(--jn-mist);
}
.btn-ghost:hover { border-color: var(--jn-gold); color: var(--jn-gold); }

/* --------------------------------------------------------------------------
   面包屑
   -------------------------------------------------------------------------- */
.breadcrumb {
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--jn-slate);
}
.breadcrumb-list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(14, 42, 51, .3);
}
.breadcrumb-link {
  color: var(--jn-gold-deep);
  border-bottom: 1px solid transparent;
  transition: border-color .22s ease;
}
.breadcrumb-link:hover { border-bottom-color: currentColor; }
.section--dark .breadcrumb,
.section--deep .breadcrumb { color: rgba(237, 242, 241, .6); }
.section--dark .breadcrumb-item + .breadcrumb-item::before,
.section--deep .breadcrumb-item + .breadcrumb-item::before { color: rgba(237, 242, 241, .34); }
.section--dark .breadcrumb-link,
.section--deep .breadcrumb-link { color: var(--jn-gold); }

/* --------------------------------------------------------------------------
   网格与卡片
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: clamp(18px, 2.6vw, 32px); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  position: relative;
  padding: clamp(20px, 2.4vw, 30px);
  background: #FFFDF8;
  border: 1px solid var(--jn-line);
  border-radius: var(--jn-radius);
  transition: transform .3s var(--jn-ease), box-shadow .3s ease, border-color .3s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(217, 169, 76, .6);
  box-shadow: 0 22px 46px -30px rgba(8, 22, 31, .5);
}

.card--dark {
  background: rgba(237, 242, 241, .05);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-color: var(--jn-line-dark);
}
.card--dark:hover { border-color: rgba(217, 169, 76, .55); }
.card--dark .card-title { color: var(--jn-mist); }
.card--dark .card-text { color: rgba(237, 242, 241, .7); }

.card-index {
  display: block;
  margin-bottom: 12px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--jn-gold-deep);
  font-variant-numeric: tabular-nums;
}
.card--dark .card-index { color: var(--jn-cyan); }

.card-title { margin-bottom: 10px; font-size: clamp(1.1rem, 1.6vw, 1.35rem); }
.card-text { font-size: 15.5px; color: var(--jn-slate); }

/* --------------------------------------------------------------------------
   数据表与控球率条
   -------------------------------------------------------------------------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  background: #FFFDF8;
}
.data-table caption {
  padding: 0 0 12px;
  text-align: left;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--jn-gold-deep);
}
.data-table th {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--jn-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--jn-mist);
  background: var(--jn-teal);
  white-space: nowrap;
}
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--jn-line);
  color: var(--jn-slate);
  vertical-align: middle;
}
.data-table tbody tr:nth-child(even) { background: rgba(30, 90, 107, .06); }
.data-table tbody tr:hover { background: rgba(217, 169, 76, .12); }
.data-table .num,
.data-table .mono {
  font-family: var(--jn-mono);
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
}

.meter {
  display: grid;
  grid-template-columns: auto minmax(60px, 1fr) auto;
  align-items: center;
  gap: 12px;
  font-family: var(--jn-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: rgba(237, 242, 241, .7);
}
.meter-track {
  height: 6px;
  border-radius: 99px;
  background: rgba(237, 242, 241, .14);
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--jn-teal), var(--jn-cyan));
  transition: width .7s var(--jn-ease);
}
.meter-value { color: var(--jn-cyan); font-variant-numeric: tabular-nums; }

/* --------------------------------------------------------------------------
   标签
   -------------------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid rgba(14, 42, 51, .2);
  border-radius: 2px;
  font-family: var(--jn-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--jn-slate);
  font-variant-numeric: tabular-nums;
}
.tag--live { border-color: rgba(226, 59, 59, .5); color: var(--jn-red); }
.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jn-red);
  animation: jn-pulse 1.6s ease-in-out infinite;
}
@keyframes jn-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .22; }
}

/* --------------------------------------------------------------------------
   图片容器（响应式占位，页面阶段放 <img>）
   -------------------------------------------------------------------------- */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--jn-radius);
  aspect-ratio: 16 / 10;
  background:
    radial-gradient(80% 90% at 75% 15%, rgba(56, 242, 214, .18), transparent 60%),
    linear-gradient(140deg, #0E2A33 0%, #1E5A6B 55%, #08161F 100%);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(217, 169, 76, .12), transparent 46%);
  pointer-events: none;
}
.media--wide { aspect-ratio: 21 / 9; }
.media--portrait { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media-caption {
  margin-top: 10px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--jn-slate);
}
.section--dark .media-caption,
.section--deep .media-caption { color: rgba(237, 242, 241, .58); }

/* --------------------------------------------------------------------------
   正文容器
   -------------------------------------------------------------------------- */
.prose { max-width: 68ch; }
.prose p { margin-bottom: 1.15em; }
.prose p:last-child { margin-bottom: 0; }
.prose h2 { margin: 2.1em 0 .7em; font-size: clamp(1.5rem, 2.6vw, 2rem); }
.prose h3 { margin: 1.8em 0 .6em; font-size: clamp(1.15rem, 1.8vw, 1.4rem); }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.2em; }
.prose ul { list-style: none; }
.prose ul li { position: relative; padding-left: 1em; margin-bottom: .5em; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jn-gold);
}
.prose ol { list-style: decimal; }
.prose ol li { margin-bottom: .5em; }
.prose a {
  color: var(--jn-gold-deep);
  border-bottom: 1px solid rgba(156, 111, 34, .45);
  transition: border-color .22s ease;
}
.prose a:hover { border-bottom-color: var(--jn-gold-deep); }
.section--dark .prose a,
.section--deep .prose a { color: var(--jn-gold); border-bottom-color: rgba(217, 169, 76, .5); }

/* --------------------------------------------------------------------------
   章节索引
   -------------------------------------------------------------------------- */
.chapter-rail {
  position: sticky;
  top: 128px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .14em;
}
.chapter-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0 6px 14px;
  border-left: 2px solid transparent;
  color: rgba(74, 92, 99, .78);
  transition: color .2s ease, border-color .2s ease;
}
.chapter-link:hover { color: var(--jn-ink); }
.chapter-link[aria-current="true"] {
  color: var(--jn-gold-deep);
  border-left-color: var(--jn-gold);
}
.section--dark .chapter-link,
.section--deep .chapter-link { color: rgba(237, 242, 241, .5); }
.section--dark .chapter-link:hover,
.section--deep .chapter-link:hover { color: var(--jn-mist); }
.section--dark .chapter-link[aria-current="true"],
.section--deep .chapter-link[aria-current="true"] { color: var(--jn-cyan); border-left-color: var(--jn-cyan); }

/* --------------------------------------------------------------------------
   复制按钮
   -------------------------------------------------------------------------- */
.copy-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid rgba(156, 111, 34, .5);
  border-radius: 2px;
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--jn-gold-deep);
  transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}
.copy-trigger:hover { background: rgba(217, 169, 76, .14); }
.copy-trigger.is-copied { border-color: var(--jn-cyan); color: var(--jn-teal); }

/* --------------------------------------------------------------------------
   显现动画
   -------------------------------------------------------------------------- */
.reveal { opacity: 1; transform: none; }
.js-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s var(--jn-ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js-ready .reveal.is-visible { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   返回顶部 / 返回索引
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: clamp(14px, 2.4vw, 30px);
  bottom: clamp(14px, 2.4vw, 30px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 52px;
  padding: 0 14px;
  border: 1px solid rgba(217, 169, 76, .45);
  border-radius: 999px;
  background: rgba(8, 22, 31, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--jn-gold);
  font-family: var(--jn-mono);
  font-size: 12px;
  letter-spacing: .12em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .3s ease, transform .35s var(--jn-ease), visibility .35s, border-color .25s ease, color .25s ease;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--jn-gold); color: var(--jn-mist); }

.to-top-label--index { display: none; }
.to-top.is-index-mode { border-color: rgba(56, 242, 214, .55); color: var(--jn-cyan); }
.to-top.is-index-mode .to-top-label--top { display: none; }
.to-top.is-index-mode .to-top-label--index { display: inline; }

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  :root { --jn-head-h: 76px; }

  .nav-toggle { display: inline-flex; }
  .masthead-mark { display: none; }
  .masthead-aside--end { display: none; }

  .masthead { padding-block: 14px 16px; }
  .header-top { max-height: 200px; }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 95;
    width: auto;
    max-width: none;
    margin: 0;
    padding: calc(96px + env(safe-area-inset-top, 0px)) var(--jn-gutter) 56px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background:
      radial-gradient(120% 90% at 80% 0%, rgba(56, 242, 214, .12), transparent 55%),
      linear-gradient(160deg, #0B2029 0%, #08161F 72%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px);
    transition: opacity .32s ease, transform .4s var(--jn-ease), visibility .4s;
  }
  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-item { width: 100%; border-bottom: 1px solid var(--jn-line-dark); }
  .nav-link {
    width: 100%;
    padding: 18px 2px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: .04em;
    color: rgba(237, 242, 241, .88);
  }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] { color: var(--jn-gold); }
  .nav-index { display: inline; }

  .glass-bar { z-index: 2; }
  .glass-inner {
    min-height: 52px;
    font-size: 11px;
    letter-spacing: .08em;
    gap: 10px;
    flex-wrap: wrap;
    padding-block: 9px;
  }
  .glass-value { font-size: 13px; }
  .glass-account { display: none; }

  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chapter-rail {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0 18px;
    margin-bottom: 22px;
  }
  .chapter-link { border-left: 0; border-bottom: 2px solid transparent; padding: 6px 0; }
  .chapter-link[aria-current="true"] { border-left-color: transparent; border-bottom-color: var(--jn-gold); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .header-top { max-height: 170px; }

  .brand { letter-spacing: .16em; }
  .version-tag { display: none; }

  .glass-sep { display: none; }
  .glass-item { gap: 6px; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; gap: 6px; }

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

  .data-table { font-size: 14px; }
  .data-table th, .data-table td { padding: 10px 10px; }

  .to-top { min-width: 46px; height: 46px; font-size: 11px; }
}

/* --------------------------------------------------------------------------
   减少动态
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js-ready .reveal { opacity: 1; transform: none; }
  .to-top { transform: none; }
}