/* ============================================================
   宝威娱乐赛场 · 共享样式 /assets/site.css
   战术板 × 数据转播间：夜蓝底 + 墨绿面 + 三口径专属色
   ============================================================ */

/* ---------- 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, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; }
table { border-collapse: collapse; }
:focus-visible {
  outline: 2px solid var(--bw-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}
#main-content { display: block; }
[data-round] { scroll-margin-top: calc(var(--bw-bar) + 28px); }

/* ---------- tokens ---------- */
:root {
  --bw-night: #0A1622;
  --bw-night-deep: #061019;
  --bw-green: #0D2E27;
  --bw-green-2: #16463B;
  --bw-paper: #F1F4F0;
  --bw-mute: #8FA6B3;
  --bw-flare: #FF5A2C;
  --bw-cyan: #35C9C1;
  --bw-gold: #E3A73C;
  --bw-line: #3A4D59;
  --bw-line-soft: rgba(58, 77, 89, .55);
  --bw-paper-soft: rgba(241, 244, 240, .84);

  --bw-sans: "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --bw-narrow: "Arial Narrow", "Helvetica Neue Condensed", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --bw-mono: ui-monospace, "JetBrains Mono", "Roboto Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --bw-shell: 1280px;
  --bw-rail: 168px;
  --bw-bar: 64px;

  --bw-r-lg: 20px 6px 20px 6px;
  --bw-r-md: 14px 4px 14px 4px;
  --bw-ease: cubic-bezier(.22, .61, .36, 1);
  --bw-shadow: 0 22px 60px -30px rgba(0, 0, 0, .85);
}

/* ---------- base ---------- */
body {
  min-height: 100vh;
  color: var(--bw-paper);
  font: 400 16px/1.75 var(--bw-sans);
  background-color: var(--bw-night);
  background-image:
    linear-gradient(rgba(58, 77, 89, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58, 77, 89, .10) 1px, transparent 1px),
    radial-gradient(1200px 620px at 84% -10%, rgba(22, 70, 59, .58), transparent 62%),
    radial-gradient(900px 520px at 4% 14%, rgba(13, 46, 39, .66), transparent 60%);
  background-size: 72px 72px, 72px 72px, auto, auto;
  background-repeat: repeat, repeat, no-repeat, no-repeat;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(4, 10, 16, .66);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .28s var(--bw-ease);
}

/* ---------- 排版阶梯 ---------- */
.bw-title-xl {
  font-family: var(--bw-narrow);
  font-weight: 900;
  font-stretch: 87.5%;
  font-size: clamp(44px, 8.6vw, 124px);
  line-height: .92;
  letter-spacing: -.02em;
}
.bw-title {
  font-family: var(--bw-narrow);
  font-weight: 800;
  font-stretch: 90%;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.06;
  letter-spacing: -.02em;
  text-wrap: balance;
}
.bw-sub {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: var(--bw-paper);
}
.bw-body {
  font-size: 16px;
  line-height: 1.75;
  max-width: 38em;
  color: var(--bw-paper-soft);
}
.bw-note {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--bw-mute);
}
.bw-kicker {
  font-size: 11.5px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--bw-mute);
}
.bw-vertical {
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: .34em;
  color: var(--bw-mute);
}
.bw-data {
  font-family: var(--bw-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}

/* ---------- 布局 ---------- */
.bw-shell {
  width: 100%;
  max-width: var(--bw-shell);
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}
.bw-section {
  position: relative;
  padding-block: clamp(40px, 7vw, 88px);
}
.bw-section--tight { padding-block: clamp(26px, 4vw, 48px); }

.bw-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
}
@media (min-width: 640px) {
  .bw-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .bw-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bw-grid--split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .bw-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bw-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .bw-grid--split { grid-template-columns: minmax(0, 1fr) minmax(0, 320px); }
}

/* ---------- 图片容器（页面阶段放占位图） ---------- */
.bw-media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--bw-line-soft);
  border-radius: var(--bw-r-md);
  background:
    repeating-linear-gradient(135deg, rgba(22, 70, 59, .55) 0 12px, rgba(10, 22, 34, .75) 12px 24px),
    var(--bw-night);
}
.bw-media--16x9 { aspect-ratio: 16 / 9; }
.bw-media--4x3  { aspect-ratio: 4 / 3; }
.bw-media--1x1  { aspect-ratio: 1 / 1; }
.bw-media--wide { aspect-ratio: 21 / 9; }
.bw-media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) contrast(1.06) brightness(.92);
}
.bw-media__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(143, 166, 179, .18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 166, 179, .18) 1px, transparent 1px);
  background-size: 44px 44px;
  mix-blend-mode: screen;
}
.bw-media__wash {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 22, 34, .12), rgba(6, 16, 25, .84));
}
.bw-media__cap {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  font-family: var(--bw-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--bw-mute);
}

/* ---------- 按钮 ---------- */
.bw-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1px solid var(--bw-line);
  border-radius: var(--bw-r-md);
  background: rgba(22, 70, 59, .5);
  color: var(--bw-paper);
  font-size: 14.5px;
  letter-spacing: .04em;
  transition: background .22s var(--bw-ease), border-color .22s var(--bw-ease),
              color .22s var(--bw-ease), transform .22s var(--bw-ease);
}
.bw-btn:hover {
  transform: translateY(-2px);
  border-color: var(--bw-cyan);
  background: rgba(22, 70, 59, .88);
}
.bw-btn--flare {
  border-color: transparent;
  background: linear-gradient(120deg, var(--bw-flare), #c93c17);
  color: #1a0b04;
  font-weight: 700;
}
.bw-btn--flare:hover { color: #1a0b04; border-color: transparent; }
.bw-btn--ghost { background: transparent; }
.bw-btn--gold {
  background: transparent;
  border-color: rgba(227, 167, 60, .6);
  color: var(--bw-gold);
}

/* ---------- 面包屑 ---------- */
.bw-crumbs { padding-block: 18px 0; }
.bw-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--bw-mute);
}
.bw-crumbs__item { display: flex; align-items: center; gap: 8px; }
.bw-crumbs__item + .bw-crumbs__item::before { content: "/"; color: var(--bw-line); }
.bw-crumbs__item[aria-current="page"] { color: var(--bw-paper); }
.bw-crumbs__link { color: var(--bw-mute); transition: color .2s var(--bw-ease); }
.bw-crumbs__link:hover { color: var(--bw-cyan); }

/* ---------- 面板 / 标签 / 折叠 / 签表骨架 ---------- */
.bw-panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--bw-line-soft);
  border-radius: var(--bw-r-lg);
  background: linear-gradient(158deg, rgba(22, 70, 59, .62), rgba(10, 22, 34, .88));
}
.bw-panel--flat { background: rgba(10, 22, 34, .62); }
.bw-panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 16px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--bw-line-soft);
}
.bw-panel__body { font-size: 15px; line-height: 1.75; color: var(--bw-paper-soft); }
.bw-panel__foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--bw-line-soft);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--bw-mute);
}

.bw-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 11px;
  border: 1px solid var(--bw-line);
  border-radius: 999px;
  font-family: var(--bw-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--bw-mute);
}
.bw-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.bw-tag--pk { color: var(--bw-flare); border-color: rgba(255, 90, 44, .45); }
.bw-tag--offside { color: var(--bw-cyan); border-color: rgba(53, 201, 193, .45); }
.bw-tag--away { color: var(--bw-gold); border-color: rgba(227, 167, 60, .45); }

.bw-fold { border-top: 1px solid var(--bw-line-soft); }
.bw-fold:last-child { border-bottom: 1px solid var(--bw-line-soft); }
.bw-fold__toggle {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 12px;
  padding: 15px 4px;
  font-size: 15.5px;
  text-align: left;
  color: var(--bw-paper);
  transition: color .2s var(--bw-ease);
}
.bw-fold__toggle:hover { color: var(--bw-cyan); }
.bw-fold__toggle::after {
  content: "";
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform .26s var(--bw-ease);
}
.bw-fold__toggle[aria-expanded="true"]::after { transform: rotate(-135deg); }
.bw-fold__meta {
  font-family: var(--bw-mono);
  font-size: 12px;
  color: var(--bw-mute);
}
.bw-fold__panel {
  height: 0;
  overflow: hidden;
  opacity: 0;
  transition: height .3s var(--bw-ease), opacity .24s var(--bw-ease);
}
.bw-fold__panel[data-open] { opacity: 1; }
.bw-fold__inner {
  padding: 2px 4px 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--bw-paper-soft);
}

.bw-bracket {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-left: 26px;
}
.bw-bracket::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  opacity: .55;
  background: linear-gradient(180deg, var(--bw-cyan), var(--bw-gold), var(--bw-flare));
}
.bw-bracket__row { position: relative; }
.bw-bracket__row::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 18px;
  height: 1px;
  background: var(--bw-line);
}
.bw-bracket__round {
  font-family: var(--bw-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--bw-cyan);
}

/* ---------- 赛季筛选压暗态 ---------- */
[data-season-tag].is-muted { opacity: .3; filter: grayscale(.7); }
html.bw-js [data-season-tag] {
  transition: opacity .3s var(--bw-ease), filter .3s var(--bw-ease);
}

/* ---------- 跳转链接 ---------- */
.bw-skip {
  position: fixed;
  top: -68px;
  left: 12px;
  z-index: 120;
  padding: 10px 16px;
  border-radius: 0 0 12px 4px;
  background: var(--bw-flare);
  color: #170a04;
  font-size: 14px;
  font-weight: 700;
  transition: top .22s var(--bw-ease);
}
.bw-skip:focus { top: 0; }

/* ---------- 头部窄条 ---------- */
.bw-header {
  position: sticky;
  top: 0;
  z-index: 70;
}
.bw-header__bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  height: var(--bw-bar);
  padding-inline: clamp(14px, 3vw, 28px);
  border-bottom: 1px solid var(--bw-line-soft);
  background: linear-gradient(180deg, rgba(13, 46, 39, .94), rgba(10, 22, 34, .90));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.bw-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.bw-brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 12px 3px 12px 3px;
  background: linear-gradient(140deg, var(--bw-flare), #b8341a);
  color: #170a04;
  font-family: var(--bw-narrow);
  font-size: 17px;
  font-weight: 900;
}
.bw-brand__text { display: flex; flex-direction: column; min-width: 0; }
.bw-brand__name {
  font-family: var(--bw-narrow);
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.2;
  white-space: nowrap;
}
.bw-brand__tag {
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--bw-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bw-tools {
  display: flex;
  align-items: center;
  gap: clamp(8px, 2vw, 20px);
  margin-left: auto;
}
.bw-season {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--bw-line-soft);
  border-radius: 999px;
  background: rgba(6, 16, 25, .55);
}
.bw-season__title {
  padding-inline: 10px 6px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--bw-mute);
}
.bw-season__btn {
  padding: 5px 11px;
  border-radius: 999px;
  font-family: var(--bw-mono);
  font-size: 12.5px;
  color: var(--bw-mute);
  transition: background .2s var(--bw-ease), color .2s var(--bw-ease);
}
.bw-season__btn:hover { color: var(--bw-paper); background: rgba(22, 70, 59, .8); }
.bw-season__btn[aria-pressed="true"] {
  background: var(--bw-gold);
  color: #20160a;
  font-weight: 700;
}
.bw-rounds { display: flex; align-items: center; gap: 8px; }
.bw-rounds__btn {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--bw-line);
  border-radius: 50%;
  color: var(--bw-paper);
  font-size: 13px;
  transition: border-color .2s var(--bw-ease), background .2s var(--bw-ease), color .2s var(--bw-ease);
}
.bw-rounds__btn:hover {
  border-color: var(--bw-cyan);
  background: var(--bw-green-2);
  color: var(--bw-cyan);
}
.bw-rounds__btn[disabled] { opacity: .32; cursor: not-allowed; }
.bw-rounds__now {
  min-width: 76px;
  text-align: center;
  font-family: var(--bw-mono);
  font-size: 12.5px;
  color: var(--bw-cyan);
}
.bw-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid var(--bw-line);
  border-radius: 999px;
  color: var(--bw-paper);
  transition: border-color .2s var(--bw-ease), color .2s var(--bw-ease);
}
.bw-navtoggle:hover { border-color: var(--bw-cyan); color: var(--bw-cyan); }
.bw-navtoggle__glyph {
  width: 16px;
  height: 11px;
  color: inherit;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 100% 1.5px no-repeat,
    linear-gradient(currentColor, currentColor) 0 100% / 100% 1.5px no-repeat;
  transition: opacity .2s var(--bw-ease);
}
.bw-navtoggle[aria-expanded="true"] .bw-navtoggle__glyph { color: var(--bw-flare); }
.bw-navtoggle__label { font-size: 12.5px; letter-spacing: .14em; }

.bw-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  background: linear-gradient(90deg, var(--bw-cyan), var(--bw-gold) 55%, var(--bw-flare));
  transition: transform .12s linear;
}

/* ---------- 侧边轨道导航（移动端为抽屉） ---------- */
.bw-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 65;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: min(320px, 84vw);
  padding: 88px 22px 26px;
  overflow-y: auto;
  border-right: 1px solid var(--bw-line-soft);
  background: linear-gradient(180deg, var(--bw-green) 0%, var(--bw-night) 55%, var(--bw-night-deep) 100%);
  box-shadow: var(--bw-shadow);
  transform: translateX(-102%);
  transition: transform .34s var(--bw-ease);
}
.bw-nav[data-open] { transform: translateX(0); }
.bw-nav__label {
  font-size: 11px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--bw-mute);
}
.bw-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  counter-reset: navidx;
}
.bw-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px 11px 14px;
  border-radius: 10px 3px 10px 3px;
  color: rgba(241, 244, 240, .78);
  font-size: 15px;
  letter-spacing: .02em;
  transition: background .22s var(--bw-ease), color .22s var(--bw-ease);
}
.bw-nav__link::before {
  counter-increment: navidx;
  content: counter(navidx, decimal-leading-zero);
  font-family: var(--bw-mono);
  font-size: 11px;
  color: var(--bw-line);
  transition: color .22s var(--bw-ease);
}
.bw-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 0;
  transform: translateY(-50%);
  background: var(--bw-flare);
  transition: height .24s var(--bw-ease);
}
.bw-nav__link:hover { background: rgba(22, 70, 59, .78); color: var(--bw-paper); }
.bw-nav__link:hover::before { color: var(--bw-cyan); }
.bw-nav__link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(22, 70, 59, .95), rgba(10, 22, 34, .35));
  color: var(--bw-paper);
  font-weight: 600;
}
.bw-nav__link[aria-current="page"]::before { color: var(--bw-flare); }
.bw-nav__link[aria-current="page"]::after { height: 62%; }
.bw-nav__cta {
  display: block;
  margin-top: auto;
  padding: 11px 14px;
  border: 1px solid rgba(227, 167, 60, .6);
  border-radius: 12px 3px 12px 3px;
  color: var(--bw-gold);
  font-size: 14px;
  letter-spacing: .06em;
  text-align: center;
  transition: background .22s var(--bw-ease), color .22s var(--bw-ease);
}
.bw-nav__cta:hover { background: rgba(227, 167, 60, .16); color: #fff3da; }
.bw-nav__note {
  padding-top: 12px;
  border-top: 1px dashed var(--bw-line-soft);
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--bw-mute);
}

/* 无 JS 时移动端仍可见导航 */
html:not(.bw-js) .bw-nav {
  position: static;
  width: auto;
  height: auto;
  transform: none;
  box-shadow: none;
  padding: 14px 18px 18px;
}
html:not(.bw-js) .bw-navtoggle { display: none; }

/* ---------- 页脚 ---------- */
.bw-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  padding-top: clamp(34px, 6vw, 62px);
  overflow: hidden;
  border-top: 1px solid var(--bw-line-soft);
  background: linear-gradient(180deg, rgba(13, 46, 39, .58), rgba(6, 16, 25, .98));
}
.bw-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  opacity: .55;
  background: linear-gradient(90deg, transparent, var(--bw-cyan), var(--bw-gold), var(--bw-flare), transparent);
}
.bw-footer__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 26px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--bw-line-soft);
}
.bw-footer__brand {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  font-family: var(--bw-narrow);
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--bw-paper);
}
.bw-footer__tag {
  font-family: var(--bw-sans);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .22em;
  color: var(--bw-gold);
}
.bw-footer__desc {
  max-width: 46ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--bw-mute);
}
.bw-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  padding-block: clamp(28px, 5vw, 44px);
}
@media (min-width: 640px) {
  .bw-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .bw-footer__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.bw-footer__col { min-width: 0; }
.bw-footer__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .24em;
  color: var(--bw-mute);
}
.bw-footer__title::before {
  content: "";
  width: 14px;
  height: 1px;
  flex: none;
  background: var(--bw-line);
}
.bw-footer__col:nth-child(1) .bw-footer__title::before { background: var(--bw-cyan); }
.bw-footer__col:nth-child(2) .bw-footer__title::before { background: var(--bw-gold); }
.bw-footer__col:nth-child(3) .bw-footer__title::before { background: var(--bw-flare); }
.bw-footer__col:nth-child(4) .bw-footer__title::before { background: var(--bw-line); }
.bw-footer__list { display: flex; flex-direction: column; gap: 9px; }
.bw-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(241, 244, 240, .78);
  transition: color .2s var(--bw-ease), transform .2s var(--bw-ease);
}
.bw-footer__link::before {
  content: "";
  width: 6px;
  height: 1px;
  flex: none;
  background: var(--bw-line);
  transition: width .2s var(--bw-ease), background .2s var(--bw-ease);
}
.bw-footer__link:hover { color: var(--bw-paper); transform: translateX(3px); }
.bw-footer__link:hover::before { width: 11px; background: var(--bw-flare); }
.bw-footer__link[aria-current="page"] { color: var(--bw-flare); }
.bw-footer__meta { display: grid; gap: 8px; }
.bw-footer__meta dt {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--bw-mute);
}
.bw-footer__meta dd {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--bw-paper-soft);
  overflow-wrap: anywhere;
}
.bw-footer__note {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--bw-line-soft);
  font-size: 12px;
  line-height: 1.65;
  color: var(--bw-mute);
}
.bw-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding-block: 18px;
  border-top: 1px solid var(--bw-line-soft);
  font-size: 12.5px;
  color: var(--bw-mute);
}
.bw-footer__copy { margin: 0; }
.bw-footer__icp {
  font-family: var(--bw-mono);
  letter-spacing: .02em;
}

/* ---------- 回顶 ---------- */
.bw-backtop {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 55;
  padding: 11px 16px;
  border: 1px solid var(--bw-line);
  border-radius: 999px;
  background: rgba(13, 46, 39, .92);
  color: var(--bw-paper);
  font-size: 13px;
  letter-spacing: .08em;
  box-shadow: var(--bw-shadow);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: border-color .2s var(--bw-ease), color .2s var(--bw-ease), transform .2s var(--bw-ease);
}
.bw-backtop:hover { border-color: var(--bw-cyan); color: var(--bw-cyan); transform: translateY(-2px); }
.bw-backtop[hidden] { display: none; }

/* ---------- 显现动效 ---------- */
html.bw-js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s var(--bw-ease), transform .5s var(--bw-ease);
}
html.bw-js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 桌面端：轨道常驻 ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--bw-rail); }
  body::after { display: none; }
  .bw-navtoggle { display: none; }
  .bw-nav {
    width: var(--bw-rail);
    gap: 14px;
    padding: calc(var(--bw-bar) + 28px) 0 22px;
    transform: none;
    box-shadow: none;
  }
  .bw-nav::before {
    content: "";
    position: absolute;
    left: 9px;
    top: calc(var(--bw-bar) + 54px);
    bottom: 108px;
    width: 1px;
    opacity: .7;
    background: linear-gradient(180deg, rgba(58, 77, 89, 0), var(--bw-line) 14%, var(--bw-line) 72%, rgba(58, 77, 89, 0));
  }
  .bw-nav__label { padding-inline: 22px; }
  .bw-nav__list { gap: 0; }
  .bw-nav__link {
    padding: 11px 16px 11px 22px;
    border-radius: 0;
    font-size: 14px;
  }
  .bw-nav__cta { margin: auto 16px 0; font-size: 13px; }
  .bw-nav__note { margin-inline: 20px; }
}

/* ---------- 小屏收敛 ---------- */
@media (max-width: 860px) {
  .bw-brand__tag { display: none; }
}
@media (max-width: 760px) {
  .bw-season { display: none; }
}
@media (max-width: 620px) {
  .bw-rounds { display: none; }
}
@media (max-width: 1023px) {
  .bw-navtoggle { display: inline-flex; }
  body.bw-nav-open { overflow: hidden; }
  body.bw-nav-open::after {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
}

/* ---------- 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;
  }
  html.bw-js [data-reveal] { opacity: 1; transform: none; }
  .bw-nav { transition: none; }
  .bw-progress { transition: none; }
  .bw-btn:hover,
  .bw-backtop:hover,
  .bw-footer__link:hover { transform: none; }
}