/* ============================================================
   欧宝赛场 · 共享样式 /assets/site.css
   夜墨绿地面 + 探照灯斜光 + 红黄牌信号色 + 玻璃浮岛
   ============================================================ */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, figure, blockquote, dl, dd { margin: 0; }

ul, ol { padding: 0; list-style: none; }

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

button { font: inherit; color: inherit; }

a { color: inherit; text-decoration: none; }

[hidden] { display: none !important; }

:root {
  --ink: #0A1E18;
  --stand: #12332A;
  --turf: #1F5C43;
  --light: #F3F6F4;
  --mist: #C9D6D1;
  --red: #E23A2E;
  --yellow: #F5C518;
  --warm: #B9B2A6;
  --cyan: #7FA79A;

  --glass: rgba(255, 255, 255, 0.08);
  --glass-line: rgba(243, 246, 244, 0.16);
  --shade: rgba(9, 26, 20, 0.9);

  --r-xs: 4px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;

  --maxw: 1280px;
  --gutter: 20px;
  --header-space: 124px;

  --font-display: "Barlow Condensed", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.22, 0.68, 0.32, 1);
  --progress: 0;
}

/* ---------- 地面：探照灯光与草皮纹 ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: #DFE8E3;
  background-color: var(--ink);
  background-image:
    radial-gradient(78% 46% at 84% -8%, rgba(243, 246, 244, 0.18), transparent 62%),
    radial-gradient(66% 40% at 4% 0%, rgba(31, 92, 67, 0.55), transparent 68%),
    repeating-linear-gradient(90deg, rgba(243, 246, 244, 0.028) 0 1px, transparent 1px 88px);
  background-repeat: no-repeat, no-repeat, repeat;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--yellow); color: #14210F; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--light);
}

p { max-width: 42ch; }

strong, b { color: var(--light); font-weight: 700; }

small { font-size: 0.82em; }

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
  border-radius: var(--r-xs);
}

/* ---------- 跳至正文 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 220;
  padding: 10px 22px;
  border-radius: var(--r-pill);
  background: var(--yellow);
  color: #14210F;
  font-size: 14px;
  font-weight: 700;
  pointer-events: auto;
  transform: translate(-50%, -180%);
  transition: transform 0.22s var(--ease);
}

.skip-link:focus {
  transform: translate(-50%, 0);
}

/* ============================================================
   悬浮胶囊头部
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 16px 0 0;
  pointer-events: none;
}

.header-shell {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  pointer-events: auto;
}

/* 版本状态带 */
.status-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-height: 60px;
  margin-bottom: 8px;
  padding: 6px 20px;
  border: 1px solid rgba(243, 246, 244, 0.1);
  border-radius: var(--r-pill);
  background: rgba(10, 30, 24, 0.55);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.02em;
  overflow: hidden;
  transition: max-height 0.32s var(--ease), opacity 0.24s var(--ease),
              margin-bottom 0.32s var(--ease), padding 0.32s var(--ease);
}

.status-strip__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: none;
  white-space: nowrap;
}

.status-strip__item--end { gap: 10px; }

.status-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(226, 58, 46, 0.18);
  animation: ob-pulse 2.6s var(--ease) infinite;
}

@keyframes ob-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.status-strip .num { color: var(--light); font-size: 12px; }

.status-link {
  color: var(--yellow);
  border-bottom: 1px solid rgba(245, 197, 24, 0.45);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.status-link:hover { color: #FFD53D; border-bottom-color: #FFD53D; }

.status-sep { color: rgba(201, 214, 209, 0.4); }

.status-note { color: rgba(201, 214, 209, 0.8); }

/* 玻璃胶囊 */
.nav-capsule {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 9px 12px 9px 18px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.045));
  box-shadow: 0 22px 48px -30px #000, inset 0 1px 0 rgba(255, 255, 255, 0.14);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  color: var(--light);
  transition: padding 0.3s var(--ease), background 0.3s var(--ease),
              border-radius 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header[data-condensed="true"] .status-strip {
  max-height: 0;
  margin-bottom: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0;
  opacity: 0;
}

.site-header[data-condensed="true"] .nav-capsule {
  padding: 6px 10px 6px 16px;
  background: var(--shade);
  box-shadow: 0 18px 40px -26px #000, inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  color: var(--light);
}

.brand__mark {
  width: 22px;
  height: 28px;
  flex: none;
  border-radius: 5px;
  background: linear-gradient(150deg, var(--red) 0 50%, var(--yellow) 50% 100%);
  transform: rotate(-8deg);
  box-shadow: 5px 4px 0 -1px rgba(10, 30, 24, 0.85);
  transition: transform 0.3s var(--ease);
}

.brand:hover .brand__mark { transform: rotate(-2deg); }

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.1;
  color: var(--light);
}

.brand__tagline {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  line-height: 1.3;
  color: var(--mist);
  white-space: nowrap;
}

/* 导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 11px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  color: #CFDBD5;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.site-nav__link:hover {
  color: var(--light);
  background: rgba(243, 246, 244, 0.08);
}

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

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: 1px;
  height: 3px;
  border-radius: 2px;
  background: var(--yellow);
}

.nav-capsule .btn { margin-left: 2px; }

/* 移动端切换按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 15px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-pill);
  background: rgba(243, 246, 244, 0.06);
  color: var(--light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav-toggle:hover { background: rgba(243, 246, 244, 0.12); }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--yellow);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ============================================================
   通用版面
   ============================================================ */
#main-content {
  display: block;
  padding-top: var(--header-space);
  min-height: 60vh;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 820px; }

.section { padding-block: clamp(48px, 8vw, 96px); }

.section__head {
  max-width: 760px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.section__title {
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.015em;
}

.section__note {
  margin-top: 12px;
  max-width: 42ch;
  font-size: 15px;
  color: var(--mist);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 12px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--yellow);
}

.anno {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mist);
  opacity: 0.85;
}

/* 阶梯错落 */
.stair { display: grid; gap: 22px; }

@media (min-width: 900px) {
  .stair--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stair--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stair--two > *:nth-child(2) { margin-top: 48px; }
  .stair--three > *:nth-child(2) { margin-top: 48px; }
  .stair--three > *:nth-child(3) { margin-top: 96px; }
}

/* 倾斜卡片 */
.tilt {
  transform: rotate(-1.5deg);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.tilt--right { transform: rotate(1.5deg); }

.tilt:hover,
.tilt--right:hover {
  transform: rotate(0deg) translateY(-2px);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
              color 0.2s var(--ease), border-color 0.2s var(--ease),
              box-shadow 0.2s var(--ease);
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--yellow);
  color: #14210F;
  box-shadow: 0 12px 26px -18px rgba(245, 197, 24, 0.95);
}

.btn--primary:hover { background: #FFD53D; }

.btn--alert {
  background: var(--red);
  color: #FFF6F5;
}

.btn--alert:hover { background: #F04A3D; }

.btn--ghost {
  background: transparent;
  color: var(--light);
  border-color: rgba(243, 246, 244, 0.3);
}

.btn--ghost:hover {
  background: rgba(243, 246, 244, 0.1);
  border-color: var(--yellow);
}

.btn--sm { padding: 8px 15px; font-size: 13px; }

/* ---------- 面包屑 ---------- */
.breadcrumb { padding-block: 16px 0; }

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--mist);
}

.breadcrumb__list li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb__list li + li::before {
  content: "/";
  color: rgba(201, 214, 209, 0.42);
}

.breadcrumb a {
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.breadcrumb a:hover { color: var(--yellow); border-bottom-color: currentColor; }

.breadcrumb [aria-current="page"] { color: var(--light); font-weight: 600; }

/* ---------- 材质层 ---------- */
.surface {
  padding: 22px;
  border: 1px solid rgba(243, 246, 244, 0.1);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(18, 51, 42, 0.96), rgba(10, 30, 24, 0.96));
  box-shadow: 0 26px 52px -40px #000;
}

.glass-panel {
  padding: 20px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.07);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  backdrop-filter: blur(12px) saturate(140%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ---------- 数据条带（场边广告牌） ---------- */
.data-strip {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(243, 246, 244, 0.1);
  border-radius: var(--r-md);
  background: rgba(243, 246, 244, 0.1);
}

.data-strip__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--stand);
}

.data-strip__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--light);
}

.data-strip__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

@media (min-width: 760px) {
  .data-strip { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
}

/* ---------- 标签（红黄牌） ---------- */
.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--r-xs);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.card-tag--red {
  background: rgba(226, 58, 46, 0.16);
  color: #FF9A92;
  box-shadow: inset 0 0 0 1px rgba(226, 58, 46, 0.5);
}

.card-tag--yellow {
  background: rgba(245, 197, 24, 0.16);
  color: var(--yellow);
  box-shadow: inset 0 0 0 1px rgba(245, 197, 24, 0.5);
}

.card-tag--plain {
  background: rgba(243, 246, 244, 0.08);
  color: var(--mist);
  box-shadow: inset 0 0 0 1px rgba(243, 246, 244, 0.18);
}

/* ---------- 影像容器 ---------- */
.figure-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, #12332A, #0A1E18);
  box-shadow: 0 30px 60px -46px #000;
  isolation: isolate;
}

.figure-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    repeating-linear-gradient(90deg, rgba(31, 92, 67, 0.55) 0 14px, rgba(18, 51, 42, 0.55) 14px 28px),
    radial-gradient(70% 50% at 78% 0%, rgba(243, 246, 244, 0.22), transparent 62%);
  opacity: 0.75;
}

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

.figure-frame__media {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure-frame__overlay {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  background: linear-gradient(180deg, transparent, rgba(6, 18, 14, 0.88));
  color: var(--light);
}

.figure-frame__caption {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 主题筛选 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: max-content;
  max-width: 100%;
  padding: 8px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-pill);
  background: rgba(243, 246, 244, 0.06);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.filter-bar__btn {
  appearance: none;
  padding: 7px 14px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--mist);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.filter-bar__btn:hover {
  color: var(--light);
  background: rgba(243, 246, 244, 0.08);
}

.filter-bar__btn.is-active {
  background: var(--yellow);
  border-color: var(--yellow);
  color: #14210F;
}

.filter-bar__count {
  padding-inline: 8px 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.is-filtered-out { display: none !important; }

/* ---------- 折叠明细 ---------- */
.accordion {
  overflow: hidden;
  border: 1px solid rgba(243, 246, 244, 0.12);
  border-radius: var(--r-md);
  background: rgba(18, 51, 42, 0.72);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.accordion + .accordion { margin-top: 10px; }

.accordion[open] {
  border-color: rgba(245, 197, 24, 0.4);
  background: rgba(18, 51, 42, 0.92);
}

.accordion > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  color: var(--light);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.accordion > summary::-webkit-details-marker { display: none; }

.accordion > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--yellow);
}

.accordion[open] > summary {
  border-bottom: 1px solid rgba(243, 246, 244, 0.12);
}

.accordion[open] > summary::after { content: "–"; }

.accordion__body {
  padding: 16px 20px 18px;
  font-size: 15px;
  color: var(--mist);
}

/* ---------- 显现与滚动进度 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

.scroll-rail {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 130;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--red), var(--yellow));
  transform: scaleX(var(--progress));
  transform-origin: 0 50%;
  pointer-events: none;
}

/* ============================================================
   页脚：场边广告牌 + 资料柜 + 落款
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 110px);
  border-top: 1px solid rgba(243, 246, 244, 0.12);
  background: linear-gradient(180deg, rgba(10, 30, 24, 0.35), rgba(6, 18, 14, 0.97) 32%);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: -1px 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red) 0 18%, var(--yellow) 18% 34%, rgba(127, 167, 154, 0.6) 34% 100%);
}

.footer-band {
  border-bottom: 1px solid rgba(243, 246, 244, 0.1);
  background: rgba(18, 51, 42, 0.55);
}

.footer-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 26px;
  padding-block: 26px;
}

.footer-band__label {
  max-width: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.footer-band__line {
  margin-right: auto;
  max-width: none;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--light);
}

.footer-main {
  display: grid;
  gap: 36px;
  padding-block: clamp(36px, 5vw, 60px);
  grid-template-columns: minmax(0, 1fr);
}

.footer-brand { min-width: 0; }

.brand--footer .brand__name { font-size: 22px; letter-spacing: 0.1em; }

.footer-brand__desc {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 14px;
  color: var(--mist);
}

.footer-contact {
  display: grid;
  gap: 7px;
  margin-top: 20px;
  font-size: 13.5px;
  color: #CFDBD5;
}

.footer-contact__row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  max-width: none;
  overflow-wrap: anywhere;
}

.footer-contact__key {
  flex: none;
  width: 46px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.footer-contact__note {
  margin-top: 6px;
  max-width: 38ch;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(201, 214, 209, 0.75);
}

.footer-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px 24px;
}

.footer-col__title {
  margin-bottom: 14px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--light);
}

.footer-col__title::after {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  margin-top: 8px;
  background: var(--yellow);
}

.footer-list {
  display: grid;
  gap: 9px;
  font-size: 14px;
}

.footer-link {
  display: inline-block;
  color: var(--mist);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.footer-link:hover {
  color: var(--yellow);
  padding-left: 4px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 20px 30px;
  border-top: 1px solid rgba(243, 246, 244, 0.1);
  font-size: 12.5px;
  color: var(--mist);
}

.footer-legal p { max-width: none; }

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
}

.footer-legal a { color: var(--mist); transition: color 0.2s var(--ease); }
.footer-legal a:hover { color: var(--yellow); }

.footer-legal__icp {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #9FB1AA;
}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width: 820px) {
  .footer-main { grid-template-columns: 1.1fr 2fr; gap: 48px; }
  .footer-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 1180px) {
  .nav-secondary { display: none; }
}

@media (max-width: 1080px) {
  .brand__tagline { display: none; }
}

@media (max-width: 980px) {
  :root { --header-space: 104px; --gutter: 16px; }

  .site-header { padding-top: 10px; }

  .header-shell { padding: 0 12px; }

  .status-strip {
    padding: 5px 14px;
    gap: 10px;
    font-size: 11px;
  }

  .nav-capsule {
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 10px 8px 14px;
    border-radius: 22px;
  }

  .site-header[data-condensed="true"] .nav-capsule {
    padding: 7px 9px 7px 13px;
  }

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

  .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
    padding: 10px 4px 4px;
    border-top: 1px solid rgba(243, 246, 244, 0.12);
  }

  .site-header[data-open="true"] .site-nav { display: flex; }

  .site-header[data-open="true"] .nav-capsule {
    background: rgba(9, 26, 20, 0.97);
    box-shadow: 0 24px 50px -24px #000;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-nav__link {
    padding: 11px 12px;
    border-radius: 12px;
    font-size: 15px;
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(245, 197, 24, 0.12);
  }

  .site-nav__link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 10px;
    bottom: 10px;
    width: 3px;
    height: auto;
  }

  .site-nav .btn {
    margin: 8px 0 2px;
    justify-content: center;
    width: 100%;
  }

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

  .footer-band__inner { padding-block: 20px; }

  .footer-band__line { order: 3; flex-basis: 100%; margin-right: 0; }
}

@media (max-width: 620px) {
  .status-note, .status-sep { display: none; }
  .status-strip__item--end { gap: 0; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
  .data-strip__item { padding: 15px 16px; }
  .surface { padding: 18px; }
}

/* ============================================================
   动效降级
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

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

  .btn:hover,
  .tilt:hover,
  .tilt--right:hover { transform: none; }

  .tilt { transform: none; }

  .scroll-rail { display: none; }
}