/* ============================================================
   星空体育入口 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

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

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

body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { background: none; border: 0; cursor: pointer; font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ---------- 2. 变量 ---------- */
:root {
  --bg-deep: #070B16;
  --bg-panel: #0E1526;
  --bg-zebra: #101A2E;
  --line: #1C2A45;
  --line-soft: rgba(28, 42, 69, .62);

  --gold: #E7B44C;
  --cyan: #35E0D6;
  --green-lo: #1F8F7E;
  --green-hi: #4FD1A5;
  --orange: #FF7A3D;
  --violet: #7C6BFF;

  --ink: #E9EEF7;
  --ink-2: #9AA8BF;
  --ink-3: #66748C;

  --rail-left: 88px;
  --rail-right: 56px;
  --anchor-h: 44px;
  --gutter: 64px;
  --cut: 16px;
  --tilt: 12deg;

  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow-panel: 0 18px 42px -30px rgba(0, 0, 0, .95);
}

/* ---------- 3. 页面骨架与中文排版 ---------- */
body {
  position: relative;
  min-height: 100vh;
  padding-top: var(--anchor-h);
  padding-left: var(--rail-left);
  padding-right: var(--rail-right);
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(1.3px 1.3px at 11% 17%, rgba(231, 180, 76, .40), transparent 62%),
    radial-gradient(1px 1px at 73% 9%, rgba(233, 238, 247, .26), transparent 62%),
    radial-gradient(1px 1px at 31% 61%, rgba(53, 224, 214, .28), transparent 62%),
    radial-gradient(1.4px 1.4px at 87% 45%, rgba(233, 238, 247, .20), transparent 62%),
    radial-gradient(1px 1px at 52% 86%, rgba(231, 180, 76, .22), transparent 62%),
    linear-gradient(112deg, transparent 43%, rgba(53, 224, 214, .05) 49%, transparent 55%);
}

#main-content {
  position: relative;
  z-index: 1;
  display: block;
  scroll-margin-top: calc(var(--anchor-h) + 16px);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--ink);
}
h1 { font-size: clamp(30px, 4.2vw, 52px); }
h2 { font-size: clamp(23px, 2.6vw, 36px); }
h3 { font-size: clamp(18px, 1.8vw, 24px); font-weight: 800; letter-spacing: -.01em; }
h4 { font-size: 17px; font-weight: 800; }

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

/* ---------- 4. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  transform: translateY(-220%);
  padding: 10px 18px;
  background: var(--gold);
  color: #0A0F1D;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  transition: transform .18s var(--ease);
}
.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 5. 头部 ---------- */
.site-header {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
}
.site-header > * { pointer-events: auto; }

/* 5.1 顶部第一栏：赛季那一栏 */
.anchor-bar {
  position: absolute;
  top: 0;
  left: var(--rail-left);
  right: var(--rail-right);
  height: var(--anchor-h);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 var(--gutter);
  background: rgba(9, 14, 26, .88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-2);
  transition: background .2s var(--ease);
}
.anchor-bar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(231, 180, 76, .38) 24%, rgba(53, 224, 214, .18) 60%, transparent 100%);
}
.anchor-bar:hover { background: rgba(14, 21, 38, .96); }
.anchor-bar__tag {
  flex: none;
  padding: 1px 8px;
  border: 1px solid rgba(231, 180, 76, .58);
  color: var(--gold);
  font-size: 11px;
  letter-spacing: .14em;
  white-space: nowrap;
}
.anchor-bar__name {
  min-width: 0;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.anchor-bar__meta {
  min-width: 0;
  color: var(--ink-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.anchor-bar__arrow {
  margin-left: auto;
  flex: none;
  color: var(--cyan);
  transition: transform .18s var(--ease);
}
.anchor-bar:hover .anchor-bar__arrow { transform: translate(3px, -3px); }

/* 5.2 左侧纵向主轨 */
.primary-rail {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 5;
  width: var(--rail-left);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 0 18px;
  background: rgba(7, 11, 22, .95);
  border-right: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  overflow-y: auto;
  scrollbar-width: none;
  transition: transform .22s var(--ease);
}
.primary-rail::-webkit-scrollbar { display: none; }

.rail-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 54px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  transition: opacity .18s var(--ease);
}
.rail-mark:hover { opacity: .82; }
.rail-mark__glyph {
  width: 26px;
  height: 26px;
  background: var(--gold);
  clip-path: polygon(50% 0, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0 50%, 39% 39%);
}
.rail-mark__text {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--ink-2);
}

.rail-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin: auto 0;
  padding: 14px 0;
}
.rail-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  width: 62px;
  padding: 9px 0;
  border: 1px solid transparent;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}
.rail-link__icon {
  width: 13px;
  height: 13px;
  border: 1.5px solid currentColor;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}
.rail-link__text { writing-mode: vertical-rl; }
.rail-list li:nth-child(1) .rail-link__icon { border-radius: 1px; }
.rail-list li:nth-child(2) .rail-link__icon { border-radius: 50%; }
.rail-list li:nth-child(3) .rail-link__icon { transform: rotate(45deg); }
.rail-list li:nth-child(4) .rail-link__icon { border-radius: 50%; border-style: dashed; }
.rail-list li:nth-child(5) .rail-link__icon {
  border: 0;
  background: currentColor;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
.rail-list li:nth-child(6) .rail-link__icon { border-radius: 0 50% 50% 0; }

.rail-link:hover {
  color: var(--cyan);
  background: rgba(53, 224, 214, .07);
}
.rail-link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.rail-link[aria-current="page"] {
  color: var(--gold);
  border-color: rgba(231, 180, 76, .38);
  background: rgba(231, 180, 76, .07);
}
.rail-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: -13px;
  top: 50%;
  width: 3px;
  height: 30px;
  transform: translateY(-50%);
  background: var(--gold);
}
.rail-link[aria-current="page"] .rail-link__icon {
  background: var(--gold);
  border-color: var(--gold);
}

/* 5.3 右侧快捷轨 */
.quick-rail {
  position: absolute;
  top: var(--anchor-h);
  right: 0;
  bottom: 0;
  z-index: 2;
  width: var(--rail-right);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  background: rgba(7, 11, 22, .9);
  border-left: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.quick-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  width: 44px;
  padding: 9px 0;
  border: 1px solid transparent;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}
.quick-link__icon {
  width: 14px;
  height: 14px;
  border: 1.5px solid currentColor;
  transform: rotate(45deg);
}
.quick-link__text { writing-mode: vertical-rl; }
.quick-link:hover {
  color: var(--cyan);
  background: rgba(53, 224, 214, .07);
}
.quick-link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.quick-link[aria-current="page"] { color: var(--cyan); }
.quick-link--pinned {
  color: var(--cyan);
  border-color: rgba(53, 224, 214, .42);
  background: rgba(53, 224, 214, .07);
}

/* 5.4 移动导航按钮与遮罩 */
.nav-toggle {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 6;
  width: 56px;
  height: var(--anchor-h);
  align-items: center;
  justify-content: center;
  background: rgba(9, 14, 26, .95);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 20px;
  height: 14px;
}
.nav-toggle__bars i {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}
.nav-toggle[data-open] .nav-toggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[data-open] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[data-open] .nav-toggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 4;
  background: rgba(4, 7, 14, .72);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s var(--ease), visibility .2s;
}
.nav-scrim[data-open] {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* 5.5 滚动进度 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 70;
  pointer-events: none;
  transform-origin: 0 50%;
  transform: scaleX(var(--progress, 0));
  background: linear-gradient(90deg, var(--gold), var(--cyan));
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 96px;
  margin-left: calc(var(--rail-left) * -1);
  margin-right: calc(var(--rail-right) * -1);
  padding-left: var(--rail-left);
  padding-right: var(--rail-right);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #0B1220 0%, #070B16 100%);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 180px;
  height: 2px;
  background: var(--gold);
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(90deg, rgba(28, 42, 69, .34) 1px, transparent 1px);
  background-size: 88px 100%;
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(200px, 1fr) minmax(340px, 1.55fr) minmax(240px, 1.05fr);
  gap: 44px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px var(--gutter) 36px;
}

.footer-brand__mark {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--ink);
}
.footer-brand__line {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-2);
}
.footer-brand__domain {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 24px;
}
.footer-col__title {
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}
.footer-col__list {
  display: grid;
  gap: 8px;
}
.footer-link {
  display: inline-block;
  font-size: 14.5px;
  color: var(--ink-2);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.footer-link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(53, 224, 214, .5);
}
.footer-link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.footer-contact__title {
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}
.footer-contact__list {
  display: grid;
  gap: 10px;
}
.footer-contact__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.7;
}
.footer-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-3);
  padding-top: 3px;
}
.footer-contact__val {
  color: var(--ink-2);
  word-break: break-word;
}
.footer-contact__item--note .footer-contact__val {
  color: var(--ink-3);
  font-size: 12.5px;
}

.footer-legal {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 28px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px var(--gutter) 30px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--ink-3);
}
.footer-legal__icp { color: var(--ink-2); }
.footer-legal__note { flex: 1 1 320px; }
.footer-legal__copy { margin-left: auto; }

/* ---------- 7. 通用组件 ---------- */

/* 7.1 切角面板 */
.panel {
  position: relative;
  padding: 28px 32px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: var(--cut);
  height: var(--cut);
  background: var(--bg-deep);
  pointer-events: none;
}
.panel::before {
  top: -1px;
  left: -1px;
  clip-path: polygon(0 0, 100% 0, 0 100%);
}
.panel::after {
  right: -1px;
  bottom: -1px;
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}
.panel:hover {
  transform: translateY(-4px);
  border-color: #27395C;
}
.panel__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-3);
}
.panel__label::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--gold);
}
.panel__title {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.4vw, 32px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.panel__body { margin-top: 14px; }

/* 7.2 面板堆叠 */
.stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.stack > *:nth-child(even) { margin-left: 24px; }

/* 7.3 按钮 */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px 11px 22px;
  border: 1px solid var(--line);
  background: rgba(14, 21, 38, .9);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.4;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--line);
  transition: background .18s var(--ease);
}
.btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 224, 214, .08);
}
.btn:hover::before { background: var(--cyan); }
.btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: .42;
  cursor: not-allowed;
  pointer-events: none;
}
.btn--primary {
  background: var(--gold);
  border-color: var(--gold);
  color: #0A0F1D;
}
.btn--primary::before { background: rgba(10, 15, 29, .38); }
.btn--primary:hover {
  background: #F2C766;
  border-color: #F2C766;
  color: #0A0F1D;
}
.btn--primary:hover::before { background: rgba(10, 15, 29, .55); }
.btn--ghost { background: transparent; }

/* 7.4 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  background: rgba(16, 26, 46, .72);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  line-height: 1.6;
}
.tag--on {
  color: var(--cyan);
  border-color: rgba(53, 224, 214, .5);
  background: rgba(53, 224, 214, .08);
}
.tag--clear { cursor: pointer; }
.tag--clear:hover {
  color: var(--orange);
  border-color: rgba(255, 122, 61, .5);
}
.tag--clear:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* 7.5 横向数据带 */
.data-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.data-cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  background: var(--bg-panel);
}
.data-num {
  font-family: var(--font-mono);
  font-size: clamp(36px, 4.6vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.data-num--orange { color: var(--orange); }
.data-num--green { color: var(--green-hi); }
.data-cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-3);
}

/* 7.6 占比条 */
.stat-bar {
  position: relative;
  width: 100%;
  height: 6px;
  background: #16203A;
  overflow: hidden;
}
.stat-bar__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--green-lo), var(--green-hi));
}
.stat-bar__fill--orange {
  background: linear-gradient(90deg, #B4481C, var(--orange));
}

/* 7.7 图片容器 */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0A1120;
  aspect-ratio: 16 / 9;
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(28, 42, 69, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 42, 69, .5) 1px, transparent 1px);
  background-size: 48px 48px;
}
.media-frame__img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}
.media-frame__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 6px 12px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  background: rgba(7, 11, 22, .84);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }

/* 7.8 面包屑 */
.breadcrumbs { padding: 22px 0 0; }
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--line);
}
.breadcrumb-item a { color: var(--ink-2); transition: color .18s var(--ease); }
.breadcrumb-item a:hover { color: var(--cyan); }
.breadcrumb-item[aria-current="page"] { color: var(--ink); }

/* 7.9 正文容器 */
.prose { max-width: 72ch; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 1.9em; font-size: clamp(22px, 2.2vw, 30px); }
.prose h3 { margin-top: 1.6em; }
.prose p { color: var(--ink-2); }
.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(53, 224, 214, .35);
  transition: border-color .18s var(--ease);
}
.prose a:hover { border-bottom-color: var(--cyan); }
.prose ul, .prose ol { display: grid; gap: .55em; }
.prose li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-2);
}
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 1px;
  background: var(--gold);
}
.prose strong { color: var(--ink); font-weight: 700; }

/* 7.10 栅格 */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

/* 7.11 表格 */
.table-basic th,
.table-basic td {
  padding: 12px 14px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}
.table-basic thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--ink-3);
  border-bottom-color: var(--line);
}
.table-basic tbody tr:nth-child(even) { background: var(--bg-zebra); }

/* 7.12 口径浮层 */
.tip { position: relative; display: inline-flex; }
.tip__pop {
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  z-index: 20;
  min-width: 220px;
  max-width: 300px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: #0B1222;
  color: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.6;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity .16s var(--ease), transform .16s var(--ease), visibility .16s;
}
.tip:hover .tip__pop,
.tip:focus-within .tip__pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 7.13 板块标题行 */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
}

/* 7.14 显现 */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .2s linear, transform .2s var(--ease);
}
[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 8. 响应式 ---------- */

/* 平板：收紧页边距 */
@media (max-width: 1100px) {
  :root { --gutter: 36px; }
  body { font-size: 16px; }
  .footer-inner {
    grid-template-columns: minmax(180px, 1fr) minmax(300px, 1.4fr);
    gap: 34px;
  }
  .footer-contact { grid-column: 1 / -1; }
  .grid-12 { gap: 16px; }
  .col-4, .col-5, .col-6, .col-7, .col-8 { grid-column: span 6; }
}

/* 移动端：抽屉 + 底部短标签 */
@media (max-width: 900px) {
  body {
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 56px;
  }

  .nav-toggle { display: flex; }

  .anchor-bar {
    left: 56px;
    right: 0;
    gap: 10px;
    padding: 0 14px;
  }
  .anchor-bar__meta { display: none; }

  .primary-rail {
    top: 0;
    bottom: 0;
    left: 0;
    right: auto;
    width: min(282px, 84vw);
    align-items: stretch;
    padding: 58px 18px 24px;
    transform: translateX(-102%);
    box-shadow: 26px 0 64px -32px rgba(0, 0, 0, .95);
  }
  .primary-rail[data-open] { transform: translateX(0); }

  .rail-mark {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    width: auto;
    padding: 0 0 18px;
  }
  .rail-mark__text {
    writing-mode: horizontal-tb;
    letter-spacing: .16em;
  }

  .rail-list {
    align-items: stretch;
    gap: 4px;
    margin: 0;
    padding: 16px 0 0;
  }
  .rail-link {
    flex-direction: row-reverse;
    justify-content: flex-end;
    align-items: center;
    gap: 12px;
    width: auto;
    padding: 11px 12px;
  }
  .rail-link__text {
    writing-mode: horizontal-tb;
    font-family: var(--font-body);
    font-size: 15px;
    letter-spacing: .06em;
  }
  .rail-link[aria-current="page"]::before {
    left: 0;
    top: 9px;
    bottom: 9px;
    height: auto;
    transform: none;
  }

  .quick-rail {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto;
    height: 56px;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 10px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .quick-link {
    flex-direction: row;
    gap: 8px;
    width: auto;
    padding: 8px 14px;
    font-size: 11px;
    letter-spacing: .08em;
  }
  .quick-link__icon { transform: none; border-radius: 1px; }
  .quick-link__text { writing-mode: horizontal-tb; }

  .site-footer {
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
    margin-top: 64px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 22px 28px;
  }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .footer-contact { grid-column: auto; }
  .footer-legal {
    padding: 16px 22px 26px;
    gap: 8px 16px;
  }
  .footer-legal__copy { margin-left: 0; }

  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
  .col-4, .col-5, .col-6, .col-7, .col-8, .col-12 { grid-column: span 6; }

  .panel { padding: 22px 20px; }
  .stack > *:nth-child(even) { margin-left: 0; }

  .data-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .data-cell { padding: 14px 16px; }
}

@media (max-width: 560px) {
  .footer-nav { grid-template-columns: 1fr; }
  .data-strip { grid-template-columns: 1fr; }
  .data-num { font-size: 36px; }
  .quick-link { padding: 8px 9px; }
}

/* ---------- 9. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .skip-link,
  .anchor-bar,
  .anchor-bar__arrow,
  .panel,
  .btn,
  .btn::before,
  .tag,
  .footer-link,
  .quick-link,
  .rail-link,
  .rail-link__icon,
  .primary-rail,
  .nav-toggle__bars i {
    transition: none;
  }
  .panel:hover { transform: none; }
  .anchor-bar:hover .anchor-bar__arrow { transform: none; }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}