/* ==========================================================================
   博亚赛场 · 共享样式表 /assets/site.css
   方向：目录型内容地图 + 居中刊头 + 草皮/记分牌材质 + 编号章节
   ========================================================================== */

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

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

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

ul, ol { padding: 0; }

li { list-style: none; }

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

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; }

hr { border: 0; }

/* ---------- 变量 ---------- */
:root {
  --green-deep: #1A5C2A;
  --green-night: #0E3719;
  --green-turf: #2E7D46;
  --gold: #C8A951;
  --red-stand: #C0392B;
  --snow: #F5F5F0;
  --gravel: #6B6B60;
  --mist: #C9D6C2;
  --board: #14180F;
  --amber: #F2C14E;
  --ink: #1E2619;

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

  --radius-s: 6px;
  --radius: 8px;
  --radius-pill: 999px;

  --shadow-1: 0 2px 4px rgba(14, 55, 25, .08);
  --shadow-2: 0 6px 14px rgba(14, 55, 25, .13);

  --line: 1px solid var(--mist);
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);

  --turf-light: repeating-linear-gradient(90deg, rgba(245, 245, 240, .07) 0 6px, transparent 6px 12px);
  --turf-dark: repeating-linear-gradient(90deg, rgba(20, 24, 15, .055) 0 6px, transparent 6px 12px);
  --glow-amber: 0 0 18px rgba(242, 193, 78, .55);
}

/* ---------- 基础 ---------- */
html { scroll-padding-top: 24px; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--snow);
  background-image:
    radial-gradient(80% 55% at 12% -8%, rgba(200, 169, 81, .10), transparent 60%),
    radial-gradient(70% 50% at 94% 6%, rgba(46, 125, 70, .10), transparent 62%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  color: var(--green-night);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .02em;
}

h1 { font-size: clamp(38px, 6vw, 68px); font-weight: 900; letter-spacing: .04em; }
h2 { font-size: clamp(26px, 3.6vw, 36px); font-weight: 800; }
h3 { font-size: clamp(19px, 2.1vw, 24px); font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 700; }

p { line-height: 1.75; }

strong { font-weight: 800; }

::selection { background: rgba(200, 169, 81, .38); color: var(--board); }

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

/* ---------- 通用工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: var(--gutter);
  z-index: 200;
  padding: .7rem 1.2rem;
  background: var(--amber);
  color: var(--board);
  font-weight: 800;
  letter-spacing: .08em;
  text-decoration: none;
  border-radius: 0 0 var(--radius-s) var(--radius-s);
  transition: top .18s ease;
}

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

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .25rem .75rem;
  border: 1px solid rgba(46, 125, 70, .32);
  border-radius: var(--radius-pill);
  background: rgba(46, 125, 70, .10);
  color: var(--green-deep);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .2em;
}

.lede {
  max-width: 34em;
  font-size: clamp(17px, 1.5vw, 19px);
  color: var(--gravel);
}

.rule {
  height: 1px;
  margin: clamp(20px, 3vw, 36px) 0;
  background: linear-gradient(90deg, transparent, var(--mist) 20%, var(--mist) 80%, transparent);
}

/* ---------- 区块节奏 ---------- */
.section { padding-block: clamp(40px, 7vw, 88px); }
.section--tight { padding-block: clamp(24px, 4vw, 48px); }

.section__head {
  display: grid;
  gap: .7rem;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.section__title { max-width: 24em; }

.section__desc {
  max-width: 36em;
  color: var(--gravel);
  font-size: 1rem;
}

/* ---------- 编号章节 ---------- */
.chapter {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 30px);
  align-items: start;
}

.chapter__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(48px, 9vw, 96px);
  font-weight: 900;
  line-height: .82;
  color: var(--gold);
  letter-spacing: -.02em;
}

.chapter__body {
  max-width: 44em;
  display: grid;
  gap: .7rem;
  padding-top: .35rem;
}

.chapter__title { letter-spacing: .02em; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding-block: .85rem;
  background: rgba(201, 214, 194, .2);
  border-bottom: var(--line);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .84rem;
  color: var(--gravel);
}

.breadcrumb__item { display: inline-flex; gap: .5rem; }

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--mist);
}

.breadcrumb__list a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.breadcrumb__list a:hover {
  color: var(--green-deep);
  border-bottom-color: var(--green-deep);
}

/* ---------- 按钮与链接 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 48px;
  padding: .7rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  font-weight: 800;
  font-size: .95rem;
  letter-spacing: .06em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.btn--primary {
  background: var(--green-deep);
  color: var(--snow);
  border-color: rgba(20, 24, 15, .22);
  box-shadow: var(--shadow-1);
}

.btn--primary:hover { background: var(--green-night); transform: translateY(-1px); box-shadow: var(--shadow-2); }

.btn--alert { background: var(--red-stand); color: #fff; }
.btn--alert:hover { background: #9E2E22; transform: translateY(-1px); }

.btn--ghost {
  background: transparent;
  color: var(--green-night);
  border-color: var(--mist);
}

.btn--ghost:hover { border-color: var(--green-turf); background: rgba(46, 125, 70, .09); }

.link {
  position: relative;
  color: var(--green-deep);
  font-weight: 700;
  text-decoration: none;
}

.link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s ease;
}

.link:hover::after { transform: scaleX(1); }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .18rem .62rem;
  border: 1px solid var(--mist);
  border-radius: var(--radius-pill);
  background: rgba(245, 245, 240, .8);
  color: var(--green-deep);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.tag--gold { border-color: rgba(200, 169, 81, .7); background: rgba(200, 169, 81, .18); color: #7A6420; }
.tag--red { border-color: rgba(192, 57, 43, .5); background: rgba(192, 57, 43, .1); color: var(--red-stand); }
.tag--green { border-color: rgba(46, 125, 70, .48); background: rgba(46, 125, 70, .12); color: var(--green-deep); }

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  padding: clamp(16px, 2vw, 24px);
  border: var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.card:hover { border-color: var(--green-turf); box-shadow: var(--shadow-2); }

.card--turf {
  background-color: #fff;
  background-image: var(--turf-dark), linear-gradient(180deg, #FFFFFF, #F1F4EE);
}

.card--dark {
  background-color: var(--green-night);
  background-image: var(--turf-light), linear-gradient(180deg, #103E1E, #0A2411);
  border-color: rgba(200, 169, 81, .35);
  color: var(--snow);
}

.card--dark .card__title,
.card--dark .card__value { color: var(--snow); }
.card--dark:hover { border-color: var(--gold); }
.card--dark .card__note { color: rgba(245, 245, 240, .68); }

.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .75rem;
}

.card__title { font-size: 1.02rem; font-weight: 800; letter-spacing: .02em; color: var(--green-night); }

.card__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--green-deep);
}

.card__note {
  margin-top: .7rem;
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--gravel);
}

/* ---------- 记分牌 ---------- */
.scoreline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: .75rem;
  padding: clamp(14px, 2vw, 22px);
  border: 1px solid rgba(242, 193, 78, .28);
  border-radius: var(--radius);
  background-color: var(--board);
  background-image: var(--turf-light), radial-gradient(120% 150% at 50% -30%, rgba(242, 193, 78, .18), transparent 62%);
  color: var(--snow);
}

.scoreline__team { font-weight: 800; letter-spacing: .04em; }
.scoreline__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(32px, 6vw, 72px);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

.scoreline__meta {
  grid-column: 1 / -1;
  text-align: center;
  font-size: .75rem;
  letter-spacing: .1em;
  color: rgba(245, 245, 240, .65);
}

/* ---------- 网格 ---------- */
.grid { display: grid; gap: clamp(14px, 2vw, 24px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- 数据列表与数据块 ---------- */
.data-list {
  display: grid;
  border-top: var(--line);
}

.data-list__row {
  display: grid;
  grid-template-columns: minmax(88px, auto) minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
  padding: .72rem 0;
  border-bottom: var(--line);
  font-size: .95rem;
}

.data-list__key { font-size: .84rem; letter-spacing: .06em; color: var(--gravel); }

.data-list__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--green-night);
}

.stat-block { display: grid; gap: .15rem; }

.stat-block__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--green-deep);
}

.stat-block__label { font-size: .8rem; letter-spacing: .1em; color: var(--gravel); }

/* ---------- 图片容器（页面阶段直接放 img 即可） ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius);
  background-color: #DDE5D7;
  background-image: linear-gradient(140deg, #E4EBDD, #C9D6C2);
  box-shadow: var(--shadow-1);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--turf-dark);
  pointer-events: none;
}

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

.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--band { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-frame--night {
  border-color: rgba(200, 169, 81, .35);
  background-color: var(--board);
  background-image: var(--turf-light), radial-gradient(120% 140% at 40% -20%, rgba(242, 193, 78, .18), transparent 62%);
}

/* ==========================================================================
   页头：居中刊头 + 栏目带 + 控制台控件
   ========================================================================== */
.readout {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  pointer-events: none;
}

.readout__fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--amber));
  box-shadow: 0 0 10px rgba(242, 193, 78, .55);
}

@media (prefers-reduced-motion: no-preference) {
  .readout__fill { transition: width .18s linear; }
}

.site-header {
  position: relative;
  z-index: 60;
  color: var(--snow);
  background-color: var(--green-night);
  background-image:
    radial-gradient(120% 150% at 50% -25%, rgba(46, 125, 70, .58), transparent 62%),
    linear-gradient(180deg, #0E3719 0%, #0B2A14 58%, #103E1E 100%);
  border-bottom: 1px solid rgba(200, 169, 81, .38);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 12px;
  background: var(--turf-light);
  opacity: .8;
  pointer-events: none;
}

.header-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 刊头 */
.masthead {
  position: relative;
  display: grid;
  justify-items: center;
  gap: .55rem;
  padding: clamp(18px, 3vw, 30px) 0 clamp(12px, 2vw, 18px);
  text-align: center;
}

.masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 169, 81, .62), transparent);
}

.masthead__eyebrow {
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .28em;
  color: rgba(245, 245, 240, .7);
}

.masthead__brand {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: .04em;
  color: var(--snow);
  text-decoration: none;
  text-shadow: 0 0 26px rgba(242, 193, 78, .18);
  transition: color .2s ease, text-shadow .2s ease;
}

.masthead__brand:hover { color: #fff; text-shadow: 0 0 30px rgba(242, 193, 78, .3); }

.masthead__dot { color: var(--gold); font-weight: 700; }

.masthead__tag {
  padding-left: .6rem;
  border-left: 1px solid rgba(200, 169, 81, .55);
  color: var(--gold);
  font-size: clamp(13px, 1.5vw, 18px);
  font-weight: 700;
  letter-spacing: .22em;
}

.masthead__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: .2rem;
}

.masthead__stat {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  padding-inline: clamp(10px, 2vw, 22px);
  border-left: 1px solid rgba(245, 245, 240, .16);
}

.masthead__stat:first-child { border-left: 0; }

.masthead__stat-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .98rem;
  font-weight: 700;
  color: var(--amber);
}

.masthead__stat-label { font-size: .74rem; letter-spacing: .1em; color: rgba(245, 245, 240, .72); }

/* 栏目带 */
.header-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-areas: "toggle nav controls";
  align-items: center;
  gap: .8rem;
  padding: .5rem 0 1rem;
}

.nav-toggle {
  grid-area: toggle;
  display: none;
  align-items: center;
  gap: .55rem;
  min-height: 48px;
  padding: .5rem .85rem;
  border: 1px solid rgba(200, 169, 81, .5);
  border-radius: var(--radius-s);
  background: rgba(20, 24, 15, .4);
  color: var(--snow);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .14em;
  cursor: pointer;
  transition: background-color .2s ease;
}

.nav-toggle:hover { background: rgba(200, 169, 81, .2); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--snow);
  transition: background-color .2s ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--snow);
  transition: transform .25s ease;
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.primary-nav { grid-area: nav; justify-self: center; }

.primary-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .15rem;
}

.primary-nav__link {
  position: relative;
  display: inline-block;
  padding: .6rem .92rem;
  border-radius: var(--radius-s);
  color: rgba(245, 245, 240, .82);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: .92rem;
  right: .92rem;
  bottom: .3rem;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s ease;
}

.primary-nav__link:hover { color: #fff; background: rgba(245, 245, 240, .07); }
.primary-nav__link:hover::after { transform: scaleX(1); }

.primary-nav__link[aria-current="page"] {
  color: #fff;
  background: rgba(200, 169, 81, .16);
  box-shadow: inset 0 -2px 0 var(--gold), inset 0 2px 0 var(--red-stand);
}

.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 控件区 */
.header-controls {
  grid-area: controls;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .5rem;
}

.team-switch { position: relative; }

.team-switch__chip {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 40px;
  padding: .45rem .85rem;
  border: 1px solid rgba(200, 169, 81, .5);
  border-radius: var(--radius-pill);
  background: rgba(20, 24, 15, .38);
  color: var(--snow);
  font-size: .84rem;
  letter-spacing: .04em;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s ease, border-color .2s ease;
}

.team-switch__chip::-webkit-details-marker { display: none; }
.team-switch__chip:hover { background: rgba(200, 169, 81, .18); }
.team-switch[open] .team-switch__chip { background: rgba(200, 169, 81, .22); border-color: var(--gold); }
.team-switch__chip strong { color: var(--amber); font-weight: 800; }

.team-switch__flag {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--red-stand);
  box-shadow: 0 0 10px rgba(192, 57, 43, .75);
}

.team-switch__label { white-space: nowrap; }

.team-switch__panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 70;
  display: grid;
  gap: .35rem;
  width: min(280px, 84vw);
  padding: .9rem;
  border: 1px solid rgba(200, 169, 81, .38);
  border-radius: var(--radius);
  background-color: var(--green-night);
  background-image: var(--turf-light), linear-gradient(180deg, #103E1E, #0B2A14);
  box-shadow: 0 12px 26px rgba(0, 0, 0, .38);
}

.team-switch__hint {
  font-size: .74rem;
  letter-spacing: .06em;
  color: rgba(245, 245, 240, .66);
}

.team-switch__option {
  min-height: 44px;
  padding: .5rem .75rem;
  border: 1px solid rgba(245, 245, 240, .16);
  border-radius: var(--radius-s);
  background: rgba(245, 245, 240, .04);
  color: var(--snow);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-align: left;
  cursor: pointer;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.team-switch__option:hover { background: rgba(245, 245, 240, .1); border-color: rgba(200, 169, 81, .6); }

.team-switch__option[aria-pressed="true"] {
  background: rgba(200, 169, 81, .22);
  border-color: var(--gold);
  color: var(--amber);
}

.version-switch {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid rgba(200, 169, 81, .45);
  border-radius: var(--radius-pill);
  background: rgba(20, 24, 15, .38);
}

.version-switch__btn {
  min-height: 40px;
  padding: .45rem .8rem;
  border: 0;
  background: transparent;
  color: rgba(245, 245, 240, .76);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}

.version-switch__btn:hover { color: #fff; }

.version-switch__btn[aria-pressed="true"] {
  background: var(--gold);
  color: var(--board);
}

.version-switch__btn[aria-pressed="true"]:hover { color: var(--board); }

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: .45rem .95rem;
  border: 1px solid rgba(245, 245, 240, .2);
  border-radius: var(--radius-s);
  background: linear-gradient(135deg, var(--red-stand), #9E2E22);
  color: #fff;
  font-size: .84rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-decoration: none;
  box-shadow: 0 2px 0 rgba(0, 0, 0, .28);
  transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
}

.header-cta:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 4px 10px rgba(0, 0, 0, .32); }

/* ==========================================================================
   页脚：四段式 + 天山轮廓收口
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  color: var(--snow);
  background-color: var(--board);
  background-image:
    radial-gradient(110% 130% at 50% 0%, rgba(26, 92, 42, .6), transparent 62%),
    linear-gradient(180deg, #103E1E 0%, #0E3719 38%, #14180F 100%);
  border-top: 1px solid rgba(200, 169, 81, .42);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 12px;
  background: var(--turf-light);
  pointer-events: none;
}

.tianshan-ridge {
  width: 100%;
  height: clamp(36px, 6vw, 64px);
  color: rgba(200, 169, 81, .55);
  padding-inline: var(--gutter);
  box-sizing: border-box;
}

.footer-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: clamp(20px, 3vw, 34px) var(--gutter) clamp(20px, 3vw, 32px);
}

.footer-banner {
  display: grid;
  gap: .5rem;
  padding-bottom: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid rgba(245, 245, 240, .14);
}

.footer-banner__line {
  font-size: clamp(22px, 3.6vw, 38px);
  font-weight: 900;
  letter-spacing: .04em;
  color: var(--snow);
}

.footer-banner__note {
  max-width: 34em;
  color: rgba(245, 245, 240, .74);
  font-size: 1rem;
}

.footer-banner__spread {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--gold);
}

.footer-index {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(24px, 4vw, 40px) 0;
  border-bottom: 1px solid rgba(245, 245, 240, .14);
}

.footer-col { display: grid; align-content: start; gap: .9rem; }

.footer-col__title {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .24em;
  color: var(--gold);
}

.footer-col__list { display: grid; gap: .55rem; }

.footer-col__list a,
.footer-col__text {
  font-size: .92rem;
  line-height: 1.6;
  color: rgba(245, 245, 240, .78);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.footer-col__list a:hover {
  color: var(--gold);
  border-bottom-color: rgba(200, 169, 81, .6);
}

.footer-meta {
  display: grid;
  gap: .5rem;
  padding: clamp(18px, 3vw, 30px) 0;
  border-bottom: 1px solid rgba(245, 245, 240, .14);
  font-size: .9rem;
  color: rgba(245, 245, 240, .74);
}

.footer-meta p { display: flex; flex-wrap: wrap; gap: .6rem; align-items: baseline; }

.footer-meta__label {
  min-width: 5.2em;
  color: var(--snow);
  font-weight: 800;
  letter-spacing: .08em;
}

.footer-meta a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 169, 81, .42);
  transition: color .2s ease, border-color .2s ease;
}

.footer-meta a:hover { color: var(--amber); border-bottom-color: var(--amber); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .75rem 1.5rem;
  padding-top: clamp(16px, 2.5vw, 26px);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .8rem;
  letter-spacing: .04em;
  color: rgba(245, 245, 240, .6);
}

.footer-legal__links { display: flex; flex-wrap: wrap; gap: 1rem; }

.footer-legal a { color: rgba(245, 245, 240, .82); text-decoration: none; transition: color .2s ease; }
.footer-legal a:hover { color: var(--gold); }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .header-bar { gap: .5rem; }
  .primary-nav__link { padding-inline: .7rem; letter-spacing: .06em; font-size: .9rem; }
  .header-cta { padding-inline: .75rem; font-size: .8rem; }
}

@media (max-width: 980px) {
  .header-bar {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "toggle controls"
      "nav nav";
    gap: .6rem;
  }

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

  .header-controls { flex-wrap: wrap; }

  .primary-nav {
    display: none;
    justify-self: stretch;
    width: 100%;
  }

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

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: .15rem;
    margin-top: .5rem;
    padding-top: .5rem;
    border-top: 1px solid rgba(245, 245, 240, .16);
  }

  .primary-nav__link {
    display: block;
    padding: .85rem .9rem;
    font-size: 1rem;
  }

  .primary-nav__link::after { display: none; }

  .primary-nav__link[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--red-stand), inset 0 0 0 1px rgba(200, 169, 81, .5);
  }

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

@media (max-width: 900px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .masthead__brand { gap: .35rem; }
  .masthead__tag { letter-spacing: .14em; }

  .header-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-items: stretch;
    justify-content: stretch;
    width: 100%;
  }

  .team-switch,
  .team-switch__chip,
  .version-switch,
  .header-cta { width: 100%; justify-content: center; }

  .version-switch__btn { flex: 1 1 auto; }

  .header-cta { grid-column: 1 / -1; }

  .team-switch__panel { left: 0; right: auto; width: min(320px, 90vw); }

  .footer-index { grid-template-columns: 1fr; }
  .footer-legal { justify-content: flex-start; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
  .chapter { grid-template-columns: 1fr; gap: .4rem; }
  .chapter__num { font-size: clamp(44px, 16vw, 72px); }
  .data-list__row { grid-template-columns: minmax(0, 1fr) auto; }
  .data-list__key { grid-column: 1 / -1; }
  .scoreline { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}