/* ============================================================
   博奥体育主站 · 共享样式 /assets/site.css
   夜间转播台 × 战术板 · 堆叠纸面板系统
   ============================================================ */

/* ---------- 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, hr { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; }
img, svg, video { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }

/* ---------- tokens ---------- */
:root {
  --ink: #0E2B24;
  --ink-deep: #081C17;
  --light: #F4F7F3;
  --signal: #FF6B1A;
  --amber: #FFB347;
  --wine: #6E1F2E;
  --indigo: #26314F;
  --grass: #4C6B52;
  --field: #9AA79E;
  --field-ink: #5C6D63;
  --note: #E9D26B;

  --hair-light: rgba(244, 247, 243, .14);
  --hair-dark: rgba(14, 43, 36, .18);
  --paper-shadow: 0 1px 0 rgba(8, 28, 23, .06), 0 20px 44px -30px rgba(8, 28, 23, .7);

  --shell: 1200px;
  --radius: 14px;
  --radius-sm: 9px;

  --font-display: "Oswald", "Archivo Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, "Courier New", monospace;
}

/* ---------- base ---------- */
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--light);
  background-image:
    repeating-linear-gradient(180deg, rgba(76, 107, 82, .06) 0 1px, transparent 1px 30px),
    radial-gradient(1100px 460px at 8% -10%, rgba(76, 107, 82, .20), transparent 70%),
    radial-gradient(900px 420px at 94% 2%, rgba(38, 49, 79, .13), transparent 72%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}
[ id="main-content" ] { scroll-margin-top: 120px; display: block; }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }

/* ---------- 排版 ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: -.005em;
  line-height: .96;
  font-size: clamp(2rem, 7vw, 5.4rem);
}
.h-serif {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: .01em;
  font-size: clamp(1.32rem, 3vw, 2.05rem);
}
.h-serif--sm { font-size: clamp(1.1rem, 2.2vw, 1.42rem); }
.eyebrow {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--field-ink);
}
.field-label {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .08em;
  color: var(--field-ink); text-transform: none;
}
.lede { font-size: clamp(1.02rem, 1.5vw, 1.18rem); line-height: 1.62; color: #2C3A33; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.data-figure {
  font-family: var(--font-mono); font-variant-numeric: tabular-nums;
  font-weight: 700; letter-spacing: -.02em; line-height: .88;
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  color: var(--signal);
}
.data-figure--light { color: var(--light); }
.data-unit { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .1em; color: var(--field-ink); }
.t-signal { color: var(--signal); }
.t-amber { color: var(--amber); }
.t-field { color: var(--field); }
.prose { font-size: 17px; line-height: 1.6; }
.prose > * + * { margin-top: 1em; }
.prose p { max-width: 68ch; }
.prose h3 { font-family: var(--font-serif); font-size: 1.22rem; font-weight: 600; }
.prose a { color: var(--wine); text-decoration: underline; text-underline-offset: 3px; }
.on-ink { color: rgba(244, 247, 243, .88); }
.on-ink .eyebrow, .on-ink .field-label, .on-ink .data-unit { color: var(--field); }
.on-ink .lede { color: rgba(244, 247, 243, .82); }
.panel--ink .eyebrow, .panel--deep .eyebrow, .panel--wine .eyebrow, .panel--indigo .eyebrow,
.panel--ink .field-label, .panel--deep .field-label, .panel--wine .field-label, .panel--indigo .field-label { color: var(--field); }

/* ---------- 容器与节奏 ---------- */
.wrap { width: min(100% - 32px, var(--shell)); margin-inline: auto; }
.wrap--narrow { width: min(100% - 32px, 820px); margin-inline: auto; }
.section { padding: clamp(38px, 6vw, 74px) 0; }
.rule {
  height: 1px; border: 0; margin: 26px 0;
  background: linear-gradient(90deg, rgba(14, 43, 36, .30), rgba(14, 43, 36, .04));
}
.on-ink .rule, .panel--ink .rule, .panel--deep .rule,
.panel--wine .rule, .panel--indigo .rule, .site-footer .rule {
  background: linear-gradient(90deg, rgba(244, 247, 243, .30), rgba(244, 247, 243, .04));
}
.round-divider {
  display: flex; align-items: center; gap: 14px; margin: clamp(26px, 4vw, 42px) 0;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--field-ink);
}
.round-divider::before, .round-divider::after {
  content: ""; flex: 1 1 auto; height: 1px; background: currentColor; opacity: .38;
}
.round-divider__num { color: var(--signal); font-weight: 700; letter-spacing: .1em; }
.on-ink .round-divider { color: var(--field); }

/* ---------- 网格 ---------- */
.grid { display: grid; gap: clamp(14px, 2vw, 22px); }
.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)); }
.grid--asym { grid-template-columns: minmax(0, 1.42fr) minmax(0, .88fr); }
.grid--asym--flip { grid-template-columns: minmax(0, .88fr) minmax(0, 1.42fr); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(232px, 1fr)); }
.is-hidden { display: none !important; }

/* ---------- 面板系统 ---------- */
.panel {
  position: relative;
  background: var(--light);
  color: var(--ink);
  border: 1px solid var(--hair-dark);
  border-radius: var(--radius);
  box-shadow: var(--paper-shadow);
  padding: clamp(20px, 3vw, 34px);
}
.panel--ink { background: var(--ink); color: rgba(244, 247, 243, .9); border-color: var(--hair-light); }
.panel--deep { background: var(--ink-deep); color: rgba(244, 247, 243, .9); border-color: var(--hair-light); }
.panel--wine { background: var(--wine); color: rgba(244, 247, 243, .92); border-color: rgba(255, 255, 255, .16); }
.panel--indigo { background: var(--indigo); color: rgba(244, 247, 243, .92); border-color: rgba(255, 255, 255, .16); }
.panel--flat { box-shadow: none; }
.panel__label {
  display: inline-flex; align-items: center; gap: .5em;
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase;
  background: var(--note); color: #232A18;
  padding: 6px 11px; border-radius: 3px;
}
.panel__label--signal { background: var(--signal); color: #14201A; }
.panel__label--ghost { background: transparent; color: var(--amber); border: 1px dashed rgba(255, 179, 71, .6); }
.panel__body { position: relative; }
.panel__body > * + * { margin-top: 16px; }
.stack-panels > .panel + .panel { margin-top: -12px; }
.stack-panels > .panel:nth-child(odd) { margin-right: clamp(0px, 2.4vw, 34px); }
.stack-panels > .panel:nth-child(even) { margin-left: clamp(0px, 2.4vw, 34px); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  padding: .72em 1.25em; border-radius: 999px;
  font-family: var(--font-body); font-size: 14px; font-weight: 600; letter-spacing: .05em;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--signal); color: #16211B; border-color: rgba(255, 255, 255, .22); }
.btn--primary:hover { background: var(--amber); }
.btn--ghost { background: transparent; color: var(--light); border-color: rgba(244, 247, 243, .34); }
.btn--ghost:hover { border-color: var(--amber); color: var(--amber); }
.btn--outline { background: transparent; color: var(--ink); border-color: rgba(14, 43, 36, .28); }
.btn--outline:hover { border-color: var(--signal); color: var(--wine); }

/* ---------- 标签筛选 ---------- */
.tag-group { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex; align-items: center; gap: .45em;
  padding: .46em .92em; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(14, 43, 36, .24); background: transparent;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  letter-spacing: .1em; color: var(--ink);
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.tag:hover { border-color: var(--signal); color: var(--wine); }
.tag[aria-pressed="true"], .tag.is-active {
  background: var(--ink); color: var(--signal); border-color: var(--signal);
}
.panel--ink .tag, .panel--deep .tag, .on-ink .tag { color: rgba(244, 247, 243, .86); border-color: rgba(244, 247, 243, .26); }
.panel--ink .tag:hover, .panel--deep .tag:hover, .on-ink .tag:hover { color: var(--amber); border-color: var(--amber); }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: .55em;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .1em; color: var(--field-ink);
}
.breadcrumb a { text-decoration: none; border-bottom: 1px solid transparent; transition: color .18s, border-color .18s; }
.breadcrumb a:hover { color: var(--signal); border-color: rgba(255, 107, 26, .5); }
.breadcrumb__sep { opacity: .5; }
.breadcrumb [aria-current="page"] { color: var(--wine); }
.breadcrumb--on-ink { color: var(--field); }
.breadcrumb--on-ink [aria-current="page"] { color: var(--amber); }

/* ---------- 折叠面板 ---------- */
.fold {
  border: 1px solid var(--hair-dark); border-radius: var(--radius-sm);
  background: var(--light); overflow: hidden;
}
.fold + .fold { margin-top: 10px; }
.fold__head {
  display: flex; align-items: center; gap: 14px; width: 100%;
  padding: 16px 18px; cursor: pointer; text-align: left;
  font-size: 15px; font-weight: 600; color: var(--ink);
}
.fold__num { font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .1em; color: var(--wine); }
.fold__title { flex: 1 1 auto; }
.fold__sign { position: relative; flex: none; width: 20px; height: 20px; }
.fold__sign::before, .fold__sign::after {
  content: ""; position: absolute; left: 3px; right: 3px; top: 9px; height: 2px;
  background: var(--signal); transition: transform .22s ease, opacity .22s ease;
}
.fold__sign::after { transform: rotate(90deg); }
.fold.is-open .fold__sign::after { transform: rotate(0deg); opacity: 0; }
.fold.is-open { border-color: rgba(255, 107, 26, .55); }
.fold__body {
  display: grid; grid-template-rows: 0fr; opacity: 0;
  transition: grid-template-rows .25s ease, opacity .25s ease;
}
.fold.is-open .fold__body { grid-template-rows: 1fr; opacity: 1; }
.fold__inner { overflow: hidden; min-height: 0; }
.fold__inner > div { padding: 2px 18px 18px; }

/* ---------- 编号复制 ---------- */
.copy-id {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 8px 6px 12px; border-radius: 6px;
  border: 1px dashed rgba(14, 43, 36, .32); background: rgba(14, 43, 36, .05);
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .06em; color: var(--ink);
}
.on-ink .copy-id, .panel--ink .copy-id, .panel--deep .copy-id, .panel--wine .copy-id, .panel--indigo .copy-id {
  border-color: rgba(244, 247, 243, .3); background: rgba(244, 247, 243, .07); color: rgba(244, 247, 243, .9);
}
.copy-btn {
  padding: 6px 10px; border-radius: 4px; cursor: pointer;
  background: var(--indigo); color: var(--light);
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .1em;
  transition: background .18s ease;
}
.copy-btn:hover { background: var(--signal); color: #16211B; }
.copy-btn.is-done { background: var(--grass); color: var(--light); }

/* ---------- 图像容器（页面阶段填入图片） ---------- */
.media-frame {
  position: relative; overflow: hidden; border-radius: 12px;
  border: 1px solid var(--hair-dark);
  aspect-ratio: 4 / 3;
  background-color: #16302A;
  background-image:
    repeating-linear-gradient(135deg, rgba(76, 107, 82, .34) 0 12px, rgba(8, 28, 23, .30) 12px 24px),
    radial-gradient(420px 220px at 22% 8%, rgba(255, 179, 71, .18), transparent 70%);
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 1;
}
.media-frame__grid {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(244, 247, 243, .10) 0 1px, transparent 1px 54px),
    repeating-linear-gradient(0deg, rgba(244, 247, 243, .10) 0 1px, transparent 1px 54px);
  mix-blend-mode: screen;
}
.media-frame__label {
  position: absolute; left: 12px; bottom: 12px; z-index: 3;
  display: inline-flex; align-items: center; gap: .5em;
  padding: 6px 10px; border-radius: 3px;
  background: rgba(8, 28, 23, .86); color: var(--amber);
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase;
}

/* ---------- 时间轴 ---------- */
.timeline { position: relative; display: grid; gap: 18px; padding-left: 26px; }
.timeline::before {
  content: ""; position: absolute; left: 5px; top: 6px; bottom: 6px; width: 1px;
  background: linear-gradient(180deg, var(--signal), rgba(14, 43, 36, .16));
}
.timeline__item { position: relative; }
.timeline__item::before {
  content: ""; position: absolute; left: -26px; top: 6px; width: 11px; height: 11px;
  background: var(--light); border: 2px solid var(--signal);
  transform: rotate(45deg); border-radius: 2px;
}
.timeline__node {
  display: block; margin-bottom: 4px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  letter-spacing: .12em; color: var(--wine);
}
.on-ink .timeline__node, .panel--ink .timeline__node, .panel--deep .timeline__node { color: var(--amber); }
.on-ink .timeline__item::before, .panel--ink .timeline__item::before { background: var(--ink-deep); }

/* ---------- 显现动效 ---------- */
[data-reveal] {
  opacity: 0; transform: translateY(16px);
  transition: opacity .42s ease, transform .42s ease;
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ============================================================
   页头：悬浮胶囊导航
   ============================================================ */
.skip-link {
  position: absolute; left: 16px; top: -70px; z-index: 200;
  padding: 10px 16px; border-radius: 0 0 8px 8px;
  background: var(--signal); color: #16211B;
  font-size: 14px; font-weight: 600; text-decoration: none;
  transition: top .18s ease;
}
.skip-link:focus { top: 0; }

.pitch-header {
  position: sticky; top: 0; z-index: 80;
  background: linear-gradient(180deg, rgba(8, 28, 23, .96), rgba(8, 28, 23, .86));
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(244, 247, 243, .10);
}
.progress-rail { height: 3px; background: rgba(244, 247, 243, .08); }
.progress-rail__bar {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--amber), var(--signal));
  transition: width .12s linear;
}
.pitch-header__bar { padding: 12px 16px 6px; }

.capsule-nav {
  display: flex; align-items: center; gap: 16px;
  width: min(100%, var(--shell)); margin-inline: auto;
  padding: 9px 10px 9px 16px; border-radius: 999px;
  border: 1px solid var(--hair-light);
  background: linear-gradient(180deg, rgba(14, 43, 36, .98), rgba(8, 28, 23, .98));
  box-shadow: 0 22px 46px -30px rgba(0, 0, 0, .95), inset 0 1px 0 rgba(244, 247, 243, .07);
  transition: padding .25s ease, border-radius .25s ease, box-shadow .25s ease;
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; flex: none; text-decoration: none; }
.brand__mark {
  flex: none; width: 34px; height: 34px; display: grid; place-items: center;
  background: var(--signal); color: #0A1A15;
  font-family: var(--font-mono); font-size: 16px; font-weight: 700;
  border-radius: 9px;
  clip-path: polygon(14% 0, 86% 0, 100% 14%, 100% 86%, 86% 100%, 14% 100%, 0 86%, 0 14%);
}
.brand__text { display: flex; flex-direction: column; min-width: 0; }
.brand__name {
  font-family: var(--font-display); font-size: 19px; font-weight: 600;
  letter-spacing: .06em; color: var(--light); line-height: 1.1;
}
.brand__line {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: .12em; color: var(--field); line-height: 1.4;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: opacity .25s ease;
}

.squad-nav { flex: 1 1 auto; min-width: 0; }
.squad-nav__list { display: flex; align-items: center; gap: 2px; }
.squad-nav__item + .squad-nav__item { border-left: 1px solid rgba(244, 247, 243, .12); }
.squad-nav__list a {
  display: block; padding: 9px 12px; border-radius: 8px;
  font-size: 14px; font-weight: 500; letter-spacing: .05em;
  color: rgba(244, 247, 243, .76); text-decoration: none;
  transition: color .18s ease, background .18s ease;
}
.squad-nav__list a:hover { color: var(--light); background: rgba(244, 247, 243, .07); }
.squad-nav__list a[aria-current="page"] {
  color: var(--signal); box-shadow: inset 0 -2px 0 var(--signal);
}
.squad-nav__tail { display: none; }

.capsule-nav__util { display: flex; align-items: center; gap: 10px; flex: none; margin-left: auto; }
.capsule-nav__search {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 13px; border-radius: 999px;
  border: 1px solid rgba(244, 247, 243, .18);
  font-size: 13px; letter-spacing: .08em; text-decoration: none;
  color: rgba(244, 247, 243, .8);
  transition: color .18s ease, border-color .18s ease;
}
.capsule-nav__search:hover { color: var(--amber); border-color: var(--amber); }
.capsule-nav__icon { flex: none; }
.version-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 9px; border-radius: 6px;
  border: 1px dashed rgba(154, 167, 158, .5);
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: .12em; color: var(--field);
}
.version-chip__key { color: rgba(154, 167, 158, .78); }

.nav-toggle {
  display: none; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(244, 247, 243, .24);
  font-size: 13px; letter-spacing: .12em; color: var(--light);
}
.nav-toggle__bars { position: relative; flex: none; width: 16px; height: 10px; }
.nav-toggle__bars::before, .nav-toggle__bars::after {
  content: ""; position: absolute; left: 0; right: 0; height: 2px;
  background: var(--signal); transition: transform .22s ease, top .22s ease;
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { top: 8px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 4px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 4px; transform: rotate(-45deg); }

/* 轮次条 */
.tactics-strip {
  max-height: 84px; overflow-x: auto; overflow-y: hidden;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
  transition: max-height .25s ease, opacity .25s ease;
}
.tactics-strip::-webkit-scrollbar { display: none; }
.tactics-strip__inner {
  display: flex; align-items: center; gap: 10px;
  width: max-content; min-width: 100%;
  padding: 4px 16px 14px;
  margin-inline: auto;
}
.tactics-strip__lead {
  padding-right: 12px; border-right: 1px solid rgba(244, 247, 243, .16);
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600;
  letter-spacing: .2em; text-transform: uppercase; color: var(--field);
}
.round-chips { display: flex; gap: 8px; }
.round-chip {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid rgba(244, 247, 243, .14);
  background: rgba(244, 247, 243, .04);
}
.round-chip__key {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: .14em; color: var(--field);
}
.round-chip__val {
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  letter-spacing: .04em; color: rgba(244, 247, 243, .92);
}
.round-chip--now { border-color: rgba(255, 107, 26, .62); background: rgba(255, 107, 26, .13); }
.round-chip--now .round-chip__val { color: var(--signal); }

/* 滚动后收窄 */
.pitch-header[data-condensed] .pitch-header__bar { padding-top: 8px; }
.pitch-header[data-condensed] .capsule-nav { padding-block: 5px; }
.pitch-header[data-condensed] .brand__line { opacity: 0; }
.pitch-header[data-condensed] .tactics-strip { max-height: 0; opacity: 0; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  position: relative; margin-top: clamp(44px, 7vw, 92px);
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 62%);
  color: rgba(244, 247, 243, .86);
  border-top: 3px solid var(--signal);
  overflow: hidden;
}
.site-footer::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(76, 107, 82, .16) 0 1px, transparent 1px 48px),
    radial-gradient(720px 320px at 88% 0%, rgba(255, 107, 26, .14), transparent 72%);
}
.site-footer__inner {
  position: relative; display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1.62fr);
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(32px, 5vw, 62px) 0 clamp(22px, 3vw, 38px);
}
.brand--footer .brand__name { color: var(--light); }
.brand--footer .brand__mark { background: var(--amber); }
.footer-facts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.footer-facts li {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 11px; border-radius: 999px;
  border: 1px solid rgba(244, 247, 243, .14);
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 500;
  letter-spacing: .08em; color: var(--field);
}
.footer-facts__num { font-size: 15px; font-weight: 700; color: var(--signal); }
.footer-note { margin-top: 16px; max-width: 40ch; font-size: 14px; line-height: 1.6; color: rgba(244, 247, 243, .68); }

.footer-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2.5vw, 28px); }
.footer-col__title {
  margin-bottom: 12px; padding-bottom: 10px;
  border-bottom: 1px solid rgba(244, 247, 243, .14);
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--amber);
}
.footer-col__list { display: grid; gap: 8px; }
.footer-col__list a {
  justify-self: start; text-decoration: none;
  font-size: 14.5px; color: rgba(244, 247, 243, .8);
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.footer-col__list a:hover { color: var(--signal); border-color: rgba(255, 107, 26, .5); }

.footer-bar { position: relative; border-top: 1px solid rgba(244, 247, 243, .12); background: rgba(8, 28, 23, .62); }
.footer-bar__inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 10px 24px; padding: 16px 0 24px;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 500;
  letter-spacing: .04em; line-height: 1.75; color: var(--field);
}
.footer-contact { flex: 1 1 100%; color: rgba(244, 247, 243, .74); }
.footer-legal a { color: rgba(244, 247, 243, .88); text-decoration: none; border-bottom: 1px solid rgba(244, 247, 243, .3); }
.footer-legal a:hover { color: var(--amber); border-color: var(--amber); }
.footer-update { color: rgba(154, 167, 158, .9); }

.to-top {
  position: fixed; right: 18px; bottom: 18px; z-index: 70;
  padding: 11px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(255, 107, 26, .55);
  background: rgba(8, 28, 23, .94); color: var(--light);
  font-size: 13px; letter-spacing: .1em;
  opacity: 0; transform: translateY(10px); pointer-events: none;
  transition: opacity .22s ease, transform .22s ease, color .18s ease, border-color .18s ease;
}
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { color: var(--amber); border-color: var(--amber); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .squad-nav__list a { padding: 9px 10px; font-size: 13.5px; }
  .capsule-nav__search { display: none; }
}
@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }
  .capsule-nav { flex-wrap: wrap; border-radius: 22px; padding: 8px 10px; gap: 8px; }
  .capsule-nav__cta { display: none; }
  .capsule-nav__util { margin-left: auto; }
  .squad-nav {
    order: 3; flex-basis: 100%; display: none; margin-top: 6px;
    padding-top: 8px; border-top: 1px solid rgba(244, 247, 243, .12);
  }
  .squad-nav[data-open] { display: block; }
  .squad-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .squad-nav__item + .squad-nav__item { border-left: 0; border-top: 1px solid rgba(244, 247, 243, .1); }
  .squad-nav__list a { padding: 12px 10px; font-size: 15px; border-radius: 6px; }
  .squad-nav__tail { display: flex; flex-direction: column; gap: 9px; padding: 12px 4px 4px; }
  .squad-nav__tail .btn { justify-content: center; }
  .squad-nav[data-open] ~ * { position: relative; }
  .site-footer__inner { grid-template-columns: minmax(0, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .grid--2, .grid--3, .grid--asym, .grid--asym--flip { grid-template-columns: minmax(0, 1fr); }
  .stack-panels > .panel:nth-child(odd),
  .stack-panels > .panel:nth-child(even) { margin-left: 0; margin-right: 0; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .brand__line { display: none; }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pitch-header[data-condensed] .tactics-strip { max-height: 84px; opacity: 1; }
}
@media (max-width: 560px) {
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .grid--auto { grid-template-columns: minmax(0, 1fr); }
  .footer-cols { grid-template-columns: minmax(0, 1fr); }
  .version-chip { display: none; }
  .footer-bar__inner { justify-content: flex-start; }
}

/* ---------- 无障碍动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .btn:hover { transform: none; }
  .to-top { transform: none; }
}