/* ==========================================================================
   天博赛场 · 共享外壳样式表 /assets/site.css
   夜间赛场指挥中心：深空底 + 荧光青 / 炽焰橙对撞 + 纵向长卷骨架
   ========================================================================== */

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

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

body {
  margin: 0;
  min-height: 100%;
  background-color: #05070E;
  background-image:
    radial-gradient(1100px 600px at 84% -6%, rgba(53, 242, 224, .10), transparent 60%),
    radial-gradient(900px 520px at 4% 4%, rgba(138, 107, 255, .10), transparent 58%);
  background-repeat: no-repeat;
  color: #EAF2FF;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; }
table { border-collapse: collapse; width: 100%; }

/* ---------- variables ---------- */
:root {
  --tbs-ink: #05070E;
  --tbs-ink-2: #0B1120;
  --tbs-panel: #16203A;
  --tbs-cyan: #35F2E0;
  --tbs-flame: #FF6A2B;
  --tbs-violet: #8A6BFF;
  --tbs-ice: #EAF2FF;
  --tbs-mist: #8A9BB8;
  --tbs-mint: #7CFFB2;
  --tbs-alert: #FF3B5C;

  --tbs-line: rgba(138, 155, 184, .22);
  --tbs-line-soft: rgba(138, 155, 184, .12);

  --tbs-shell: 1280px;
  --tbs-gutter: clamp(18px, 4vw, 56px);
  --tbs-radius: 14px;
  --tbs-header-h: 66px;
  --tbs-ease: cubic-bezier(.2, .7, .3, 1);

  --font-display: "Oswald", "Anton", "Arial Narrow", "Noto Sans SC", system-ui, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

/* ---------- base type ---------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .6em;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--tbs-ice);
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

strong, b { font-weight: 800; }
em { font-style: normal; color: var(--tbs-cyan); }

a {
  color: var(--tbs-cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

code, kbd, samp, time {
  font-family: var(--font-mono);
  font-size: .92em;
  letter-spacing: .02em;
}

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

::selection {
  background: rgba(53, 242, 224, .28);
  color: #FFFFFF;
}

.tbs-nav__list,
.tbs-subbar__list,
.tbs-footer__links,
.tbs-breadcrumb ol,
.tbs-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

#main-content { display: block; outline: none; }

/* ---------- shell / section ---------- */
.tbs-shell {
  width: 100%;
  max-width: var(--tbs-shell);
  margin-inline: auto;
  padding-inline: var(--tbs-gutter);
}

.tbs-section {
  position: relative;
  padding-block: clamp(46px, 7vw, 104px);
}

.tbs-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 34px);
  align-items: start;
  margin-bottom: clamp(22px, 3vw, 44px);
}

.tbs-section__no {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.6vw, 78px);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.03em;
  color: rgba(53, 242, 224, .18);
}

.tbs-section__title {
  margin: 0 0 .35em;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.32;
  letter-spacing: 0;
  color: var(--tbs-ice);
}

.tbs-band {
  display: block;
  width: clamp(52px, 12vw, 168px);
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--tbs-cyan), var(--tbs-flame));
}

.tbs-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--tbs-cyan);
}

.tbs-lede {
  max-width: 68ch;
  margin: 0 0 1em;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.72;
  color: var(--tbs-ice);
}

/* ---------- buttons / chips / filters ---------- */
.tbs-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--tbs-cyan);
  color: #04121A;
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .03em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s var(--tbs-ease), color .2s var(--tbs-ease),
              border-color .2s var(--tbs-ease), box-shadow .2s var(--tbs-ease);
}

.tbs-btn:hover {
  box-shadow: 0 0 0 1px var(--tbs-cyan), 0 14px 32px -16px rgba(53, 242, 224, .85);
}

.tbs-btn--flame {
  background: var(--tbs-flame);
  color: #160703;
}

.tbs-btn--flame:hover {
  box-shadow: 0 0 0 1px var(--tbs-flame), 0 14px 32px -16px rgba(255, 106, 43, .9);
}

.tbs-btn--ghost {
  background: transparent;
  border-color: var(--tbs-line);
  color: var(--tbs-ice);
}

.tbs-btn--ghost:hover {
  border-color: var(--tbs-cyan);
  color: var(--tbs-cyan);
  box-shadow: none;
}

.tbs-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--tbs-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--tbs-mist);
  text-decoration: none;
  transition: color .18s var(--tbs-ease), border-color .18s var(--tbs-ease),
              background-color .18s var(--tbs-ease);
}

.tbs-chip:hover {
  color: var(--tbs-ice);
  border-color: var(--tbs-violet);
  background: rgba(138, 107, 255, .12);
}

.tbs-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tbs-filter {
  padding: 7px 15px;
  border: 1px solid var(--tbs-line);
  border-radius: 999px;
  background: transparent;
  color: var(--tbs-mist);
  font-size: 13px;
  letter-spacing: .02em;
  cursor: pointer;
  transition: color .18s var(--tbs-ease), border-color .18s var(--tbs-ease),
              background-color .18s var(--tbs-ease), box-shadow .18s var(--tbs-ease);
}

.tbs-filter:hover {
  color: var(--tbs-ice);
  border-color: rgba(138, 107, 255, .6);
}

.tbs-filter[aria-pressed="true"] {
  background: rgba(138, 107, 255, .16);
  border-color: var(--tbs-violet);
  color: var(--tbs-ice);
  box-shadow: 0 0 0 1px rgba(138, 107, 255, .38);
}

/* ---------- breadcrumb ---------- */
.tbs-breadcrumb {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--tbs-mist);
}

.tbs-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.tbs-breadcrumb a {
  color: var(--tbs-mist);
  text-decoration: none;
  transition: color .18s var(--tbs-ease);
}

.tbs-breadcrumb a:hover { color: var(--tbs-cyan); }

.tbs-breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(138, 155, 184, .5);
}

.tbs-breadcrumb [aria-current="page"] { color: var(--tbs-ice); }

/* ---------- grid ---------- */
.tbs-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 30px);
}

.tbs-grid--split {
  grid-template-columns: minmax(240px, 1fr) minmax(0, 2fr);
}

.tbs-grid--cards {
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
}

/* ---------- 专题研究板 ---------- */
.tbs-board {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--tbs-line-soft);
  border-radius: var(--tbs-radius);
  background:
    linear-gradient(160deg, rgba(22, 32, 58, .92), rgba(11, 17, 32, .78));
  overflow: hidden;
}

.tbs-board::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--tbs-cyan), rgba(53, 242, 224, 0));
}

.tbs-board[data-accent="flame"]::before {
  background: linear-gradient(180deg, var(--tbs-flame), rgba(255, 106, 43, 0));
}

.tbs-board__title {
  margin: 0 0 .4em;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--tbs-ice);
}

.tbs-board__summary {
  margin: 0 0 1em;
  font-size: 14.5px;
  color: var(--tbs-mist);
}

.tbs-board__data {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  padding: 12px 0;
  border-top: 1px solid var(--tbs-line-soft);
  border-bottom: 1px solid var(--tbs-line-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--tbs-cyan);
}

.tbs-board__terms {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--tbs-mist);
}

.tbs-board__terms a { color: var(--tbs-violet); text-decoration: none; }
.tbs-board__terms a:hover { text-decoration: underline; }

.tbs-board__more {
  margin: 12px 0 0;
  font-size: 13.5px;
}

.tbs-board__more a { color: var(--tbs-cyan); text-decoration: none; }

/* ---------- 数据组 ---------- */
.tbs-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(136px, 1fr));
  gap: clamp(12px, 2vw, 26px);
}

.tbs-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--tbs-cyan);
  line-height: 1.2;
}

.tbs-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--tbs-mist);
}

/* ---------- 时间轴 ---------- */
.tbs-timeline {
  position: relative;
}

.tbs-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--tbs-cyan), rgba(138, 155, 184, .16));
}

.tbs-timeline__item {
  position: relative;
  padding: 0 0 22px 30px;
}

.tbs-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 15px;
  height: 15px;
  border: 2px solid var(--tbs-cyan);
  border-radius: 50%;
  background: var(--tbs-ink);
}

.tbs-timeline__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--tbs-flame);
}

/* ---------- 可复用图片容器 ---------- */
.tbs-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--tbs-line-soft);
  border-radius: var(--tbs-radius);
  background:
    radial-gradient(120% 100% at 18% 0%, rgba(53, 242, 224, .14), transparent 58%),
    linear-gradient(160deg, var(--tbs-panel), var(--tbs-ink));
  overflow: hidden;
}

.tbs-figure__img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.92) contrast(1.08);
}

.tbs-figure--wide .tbs-figure__img { aspect-ratio: 21 / 9; }
.tbs-figure--tall .tbs-figure__img { aspect-ratio: 4 / 5; }

.tbs-figure__cap {
  position: absolute;
  inset: auto 0 0 0;
  padding: 16px;
  background: linear-gradient(180deg, rgba(5, 7, 14, 0), rgba(5, 7, 14, .92));
  font-size: 12.5px;
  color: var(--tbs-ice);
}

/* ---------- 滚动显现 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .tbs-reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .5s var(--tbs-ease), transform .5s var(--tbs-ease);
  }

  .tbs-reveal[data-shown] {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   页头
   ========================================================================== */
.tbs-skip {
  position: fixed;
  top: -72px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 0 0 10px 10px;
  background: var(--tbs-cyan);
  color: #04121A;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: top .2s var(--tbs-ease);
}

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

.tbs-header {
  position: sticky;
  top: 0;
  z-index: 80;
  color: var(--tbs-ice);
  background: linear-gradient(180deg,
              rgba(5, 7, 14, .90) 0%,
              rgba(5, 7, 14, .52) 58%,
              rgba(5, 7, 14, 0) 100%);
  transition: background-color .26s var(--tbs-ease), box-shadow .26s var(--tbs-ease);
}

.tbs-header[data-scrolled] {
  background: rgba(11, 17, 32, .95);
  box-shadow: 0 1px 0 var(--tbs-line), 0 22px 44px -34px rgba(0, 0, 0, .95);
}

.tbs-progress {
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: rgba(138, 155, 184, .14);
  overflow: hidden;
}

.tbs-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--tbs-cyan), var(--tbs-flame));
}

.tbs-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.4vw, 36px);
  min-height: var(--tbs-header-h);
}

/* 品牌 */
.tbs-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  color: inherit;
  text-decoration: none;
}

.tbs-brand__mark {
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: conic-gradient(from 140deg, var(--tbs-cyan), var(--tbs-violet), var(--tbs-flame), var(--tbs-cyan));
  box-shadow: 0 0 0 1px rgba(53, 242, 224, .38), 0 0 20px -6px rgba(53, 242, 224, .8);
}

.tbs-brand__mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 3px;
  background: var(--tbs-ink);
}

.tbs-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.tbs-brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--tbs-ice);
}

.tbs-brand__line {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--tbs-mist);
}

/* 导航 */
.tbs-nav { margin-left: auto; }

.tbs-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1.5vw, 24px);
}

.tbs-nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 2px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .03em;
  color: var(--tbs-mist);
  text-decoration: none;
  transition: color .2s var(--tbs-ease);
}

.tbs-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--tbs-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .22s var(--tbs-ease);
}

.tbs-nav__link:hover { color: var(--tbs-ice); }

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

.tbs-nav__link[aria-current="page"] { color: var(--tbs-cyan); }

/* 工具区 */
.tbs-utility {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  margin-left: clamp(10px, 2vw, 28px);
  flex: none;
}

.tbs-clock {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border: 1px solid var(--tbs-line);
  border-radius: 999px;
  background: rgba(22, 32, 58, .55);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--tbs-mist);
  white-space: nowrap;
}

.tbs-clock__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tbs-flame);
  box-shadow: 0 0 10px var(--tbs-flame);
  animation: tbs-pulse 1.6s ease-in-out infinite;
}

.tbs-clock__value {
  font-weight: 700;
  color: var(--tbs-cyan);
}

.tbs-utility__link {
  font-size: 13.5px;
  color: var(--tbs-ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 224, .42);
  padding-bottom: 1px;
  white-space: nowrap;
  transition: color .2s var(--tbs-ease), border-color .2s var(--tbs-ease);
}

.tbs-utility__link:hover {
  color: var(--tbs-cyan);
  border-color: var(--tbs-cyan);
}

/* 第二栏：收藏筛选联赛对照 */
.tbs-subbar {
  border-top: 1px solid var(--tbs-line-soft);
  border-bottom: 1px solid var(--tbs-line);
  background: rgba(11, 17, 32, .62);
}

.tbs-subbar__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 42px;
  overflow-x: auto;
  scrollbar-width: none;
}

.tbs-subbar__inner::-webkit-scrollbar { display: none; }

.tbs-subbar__label {
  flex: none;
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--tbs-violet);
  white-space: nowrap;
}

.tbs-subbar__list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tbs-subbar__link {
  display: inline-block;
  padding: 3px 11px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  color: var(--tbs-mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--tbs-ease), border-color .18s var(--tbs-ease),
              background-color .18s var(--tbs-ease);
}

.tbs-subbar__link:hover {
  color: var(--tbs-ice);
  border-color: var(--tbs-cyan);
  background: rgba(53, 242, 224, .08);
}

.tbs-subbar__cta {
  margin-left: auto;
  padding-left: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--tbs-flame);
  text-decoration: none;
  white-space: nowrap;
}

.tbs-subbar__cta:hover { text-decoration: underline; }

/* 移动导航按钮 */
.tbs-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 8px 13px;
  border: 1px solid var(--tbs-line);
  border-radius: 10px;
  background: rgba(22, 32, 58, .6);
  color: var(--tbs-ice);
  font-size: 13px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: border-color .2s var(--tbs-ease), color .2s var(--tbs-ease);
}

.tbs-navtoggle:hover { border-color: var(--tbs-cyan); color: var(--tbs-cyan); }

.tbs-navtoggle__bars,
.tbs-navtoggle__bars::before,
.tbs-navtoggle__bars::after {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.tbs-navtoggle__bars { position: relative; }

.tbs-navtoggle__bars::before { content: ""; position: absolute; top: -5px; }
.tbs-navtoggle__bars::after { content: ""; position: absolute; top: 5px; }

@keyframes tbs-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .28; }
}

/* ==========================================================================
   页脚
   ========================================================================== */
.tbs-footer {
  margin-top: clamp(48px, 7vw, 100px);
  border-top: 1px solid var(--tbs-line);
  background: linear-gradient(180deg, rgba(11, 17, 32, .35), var(--tbs-ink-2) 46%);
  color: var(--tbs-mist);
}

.tbs-footer__strip {
  background: rgba(5, 7, 14, .6);
  border-bottom: 1px solid var(--tbs-line-soft);
}

.tbs-footer__strip-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  min-height: 46px;
}

.tbs-footer__pulse {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--tbs-cyan);
  box-shadow: 0 0 12px var(--tbs-cyan);
  animation: tbs-pulse 1.8s ease-in-out infinite;
}

.tbs-footer__strip-text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--tbs-mist);
}

.tbs-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(36px, 5vw, 68px);
}

.tbs-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.tbs-footer__name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .05em;
  color: var(--tbs-ice);
}

.tbs-footer__tagline {
  margin: 0;
  max-width: 34ch;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--tbs-mist);
}

.tbs-footer__col { min-width: 0; }

.tbs-footer__coltitle {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--tbs-ice);
}

.tbs-footer__links {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.tbs-footer__links a {
  font-size: 13.5px;
  color: var(--tbs-mist);
  text-decoration: none;
  transition: color .18s var(--tbs-ease);
}

.tbs-footer__links a:hover { color: var(--tbs-cyan); }

.tbs-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 20px 34px;
  border-top: 1px solid var(--tbs-line-soft);
}

.tbs-footer__contact,
.tbs-footer__legal {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--tbs-mist);
}

.tbs-footer__legal {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tbs-footer__sep {
  width: 1px;
  height: 12px;
  background: var(--tbs-line);
}

/* ==========================================================================
   平板 / 移动端
   ========================================================================== */
@media (max-width: 1100px) {
  .tbs-footer__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tbs-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 960px) {
  :root { --tbs-header-h: 60px; }

  .tbs-navtoggle { display: inline-flex; }

  .tbs-utility { display: none; }

  .tbs-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    max-height: calc(100vh - var(--tbs-header-h));
    overflow-y: auto;
    padding: 10px 0 20px;
    margin-left: 0;
    background: rgba(11, 17, 32, .98);
    border-bottom: 1px solid var(--tbs-line);
    box-shadow: 0 26px 50px -30px rgba(0, 0, 0, .95);
  }

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

  .tbs-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-inline: var(--tbs-gutter);
  }

  .tbs-nav__link {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--tbs-line-soft);
  }

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

  .tbs-nav__link[aria-current="page"] { color: var(--tbs-cyan); }

  .tbs-grid--split { grid-template-columns: minmax(0, 1fr); }

  .tbs-section__head { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  .tbs-brand__line { display: none; }

  .tbs-subbar__cta { display: none; }

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

  .tbs-footer__meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .tbs-footer__contact { font-size: 12px; line-height: 1.9; }
}

@media (max-width: 460px) {
  .tbs-footer__grid { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 无障碍：降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  html { scroll-behavior: auto; }

  .tbs-reveal { opacity: 1; transform: none; }
}