/* =========================================================
   多宝平台主站 · /assets/site.css
   深夜赛场指挥中心：深墨绿底 / 电光青数据线 / 荧光橙高亮
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

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

ul, ol { list-style: none; }

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

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; }

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

table { border-collapse: collapse; width: 100%; }

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #06120F;
  --ink-panel: #0C1F1A;
  --ink-deep: #030807;

  --cyan: #22E0C8;
  --orange: #FF6B2C;
  --cream: #F4F0E6;
  --mist: #9DB3AC;
  --amber: #F5B54A;
  --danger: #E5484D;
  --heat: #0F7F72;

  --line: rgba(34, 224, 200, 0.20);
  --line-soft: rgba(244, 240, 230, 0.10);
  --line-strong: rgba(34, 224, 200, 0.48);

  --shell: 1240px;
  --gutter: clamp(16px, 3vw, 36px);
  --radius: 2px;

  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", ui-monospace, "Cascadia Mono", "Roboto Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;

  --shadow-panel: 0 18px 44px rgba(0, 0, 0, 0.42);
  --ease: cubic-bezier(0.22, 0.7, 0.28, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--ink);
  background-image:
    radial-gradient(1100px 620px at 78% -12%, rgba(34, 224, 200, 0.10), transparent 62%),
    radial-gradient(760px 520px at 6% 3%, rgba(255, 107, 44, 0.07), transparent 60%);
  background-repeat: no-repeat;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.005em;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }

p { max-width: 72ch; }

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

::selection { background: rgba(34, 224, 200, 0.32); color: var(--cream); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 1px;
}

#main-content { scroll-margin-top: 92px; }
#main-content:focus { outline: none; }

.skip-link {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 200;
  transform: translate(-50%, -130%);
  background: var(--orange);
  color: #0A0704;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 10px 20px;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* ---------- 4. 版心与分节 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.shell--narrow { max-width: 860px; }

.section { padding-block: clamp(40px, 6vw, 84px); }

.band { background: var(--ink-panel); }
.band--deep { background: var(--ink-deep); }
.band--edge {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: clamp(18px, 2.6vw, 34px);
}

.index-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.index-label::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.display-title {
  font-size: clamp(38px, 7vw, 72px);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-title {
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.lead {
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.8;
  color: var(--mist);
  max-width: 68ch;
}

.note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.divider {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--line-soft);
}

/* ---------- 5. 栅格 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 28px);
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.split {
  display: grid;
  gap: clamp(20px, 3vw, 46px);
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
}

/* ---------- 6. 按钮与芯片 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  padding: 12px 19px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--cream);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.btn-accent {
  background: var(--orange);
  border-color: var(--orange);
  color: #170703;
}
.btn-accent:hover { background: #FF8348; border-color: #FF8348; }
.btn-ghost {
  border-color: var(--line);
  color: var(--cyan);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  background: rgba(34, 224, 200, 0.09);
}
.btn-sm { padding: 9px 14px; font-size: 12.5px; }
.btn-block { width: 100%; }

.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--cyan);
}

.round-chip,
.sport-chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  border-radius: var(--radius);
  white-space: nowrap;
}
.round-chip {
  border: 1px solid var(--line);
  color: var(--mist);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.round-chip:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
  background: rgba(34, 224, 200, 0.08);
}
.sport-chip {
  border: 1px dashed var(--line-soft);
  color: var(--mist);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* ---------- 7. 数据组件 ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.stat-cell {
  background: var(--ink);
  padding: clamp(14px, 2vw, 24px);
}
.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(34px, 5.4vw, 66px);
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: -0.03em;
  color: var(--cream);
  font-variant-numeric: tabular-nums;
}
.stat-value--accent { color: var(--orange); }
.stat-value--cyan { color: var(--cyan); }
.stat-label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}
.stat-delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}
.stat-delta--up { color: var(--amber); }
.stat-delta--down { color: var(--danger); }

.data-list { border-top: 1px solid var(--line-soft); }
.data-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--line-soft);
}
.data-row-value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--cream);
}

/* ---------- 8. 面板与折叠 ---------- */
.panel {
  background: var(--ink-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: clamp(16px, 2.4vw, 26px);
  box-shadow: var(--shadow-panel);
}
.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}
.panel-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.fold { border-top: 1px solid var(--line-soft); }
.fold > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 2px;
  font-weight: 600;
  color: var(--cream);
  transition: color 0.18s var(--ease);
}
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 0.2s var(--ease);
}
.fold[open] > summary::after { content: "–"; }
.fold > summary:hover { color: var(--cyan); }
.fold-body {
  padding: 0 2px 18px;
  color: var(--mist);
  font-size: 15px;
}

/* ---------- 9. 分段切换 ---------- */
.segmented { width: 100%; }
.segmented-list {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line-soft);
  scrollbar-width: none;
}
.segmented-list::-webkit-scrollbar { display: none; }
.segmented-tab {
  position: relative;
  flex: 0 0 auto;
  appearance: none;
  background: transparent;
  border: 0;
  padding: 11px 15px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--mist);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.18s var(--ease);
}
.segmented-tab::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: -1px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.22s var(--ease);
}
.segmented-tab:hover { color: var(--cream); }
.segmented-tab[aria-selected="true"] { color: var(--cream); }
.segmented-tab[aria-selected="true"]::after { transform: scaleX(1); }
.segmented-panel { padding-top: clamp(16px, 2.4vw, 26px); }

/* ---------- 10. 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--ink-panel), var(--ink-deep));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06) brightness(0.92);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(3, 8, 7, 0.14) 0%, rgba(3, 8, 7, 0.74) 100%);
  pointer-events: none;
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--photo { aspect-ratio: 3 / 2; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--heat {
  background-image:
    radial-gradient(circle at 30% 42%, rgba(15, 127, 114, 0.85), transparent 56%),
    radial-gradient(circle at 68% 64%, rgba(34, 224, 200, 0.50), transparent 52%),
    linear-gradient(135deg, var(--ink-panel), var(--ink-deep));
}
.media-placeholder {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}
.figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb { margin-bottom: clamp(16px, 2.4vw, 26px); }
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}
.breadcrumb-list > li { display: inline-flex; align-items: center; gap: 9px; }
.breadcrumb-list > li + li::before {
  content: "/";
  color: var(--heat);
}
.breadcrumb-link { color: var(--mist); transition: color 0.18s var(--ease); }
.breadcrumb-link:hover { color: var(--cyan); }
.breadcrumb-list [aria-current="page"] { color: var(--cream); }

/* ---------- 12. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(3, 8, 7, 0.97), rgba(6, 18, 15, 0.88));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

.header-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  min-height: 68px;
  padding: 9px var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--cream);
}
.brand-pulse {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  width: 22px;
  height: 20px;
}
.brand-pulse > span {
  flex: 1 1 auto;
  border-radius: 1px;
  background: var(--cyan);
  transform-origin: 50% 100%;
  animation: pulse-bar 1.9s ease-in-out infinite;
}
.brand-pulse > span:nth-child(1) { height: 8px; animation-delay: 0s; }
.brand-pulse > span:nth-child(2) { height: 19px; background: var(--orange); animation-delay: 0.22s; }
.brand-pulse > span:nth-child(3) { height: 12px; animation-delay: 0.44s; }
@keyframes pulse-bar {
  0%, 100% { transform: scaleY(0.45); opacity: 0.7; }
  50% { transform: scaleY(1); opacity: 1; }
}
.brand-words { display: inline-flex; flex-direction: column; }
.brand-name {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.primary-nav {
  flex: 1 1 auto;
  min-width: 0;
}
.nav-list {
  display: flex;
  align-items: stretch;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-list::-webkit-scrollbar { display: none; }
.nav-item { display: flex; }
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 13px;
  color: var(--mist);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.18s var(--ease);
}
.nav-link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
  opacity: 0;
  transform: scale(0.4);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 3px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.2s var(--ease);
}
.nav-link:hover { color: var(--cream); }
.nav-link:hover::after { transform: scaleX(1); background: rgba(34, 224, 200, 0.5); }
.nav-link[aria-current="page"] { color: var(--cyan); }
.nav-link[aria-current="page"]::before { opacity: 1; transform: scale(1); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--heat);
}
.nav-link[aria-current="page"] .nav-index { color: var(--orange); }

.nav-foot {
  display: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.header-tools {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.4vw, 16px);
  margin-left: auto;
}

.season-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
  white-space: nowrap;
}
.pulse-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  animation: ping 2.4s ease-out infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(34, 224, 200, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(34, 224, 200, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 224, 200, 0); }
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--cream);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.nav-toggle:hover { border-color: var(--line-strong); color: var(--cyan); }
.nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 16px;
  height: 11px;
}
.nav-toggle-bar {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(4.75px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-4.75px) rotate(-45deg); }
.nav-toggle-label { line-height: 1; }

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(244, 240, 230, 0.06);
  overflow: hidden;
}
.scroll-progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

/* ---------- 13. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 8vw, 110px);
  background: var(--ink-deep);
  border-top: 1px solid var(--line);
}
.footer-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 68px) var(--gutter) 22px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(22px, 3vw, 46px);
}

.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-name {
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cream);
}
.footer-tagline {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 34ch;
}
.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.footer-col { min-width: 0; }
.footer-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.footer-list { display: flex; flex-direction: column; gap: 9px; }
.footer-link {
  display: inline-block;
  font-size: 14px;
  color: var(--mist);
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}
.footer-link:hover { color: var(--cyan); padding-left: 5px; }

.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact-item { display: flex; flex-direction: column; gap: 3px; }
.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--heat);
}
.footer-contact-value {
  font-size: 14px;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}
.footer-note {
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 42ch;
}

.footer-index {
  margin-top: clamp(30px, 4vw, 54px);
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: clamp(18px, 3vw, 40px);
}
.footer-index-block { min-width: 0; }
.footer-index-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 12px;
}

.footer-legal {
  margin-top: clamp(24px, 3vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.footer-copy,
.footer-icp { color: var(--mist); }
.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-legal-links .footer-link { font-size: 11px; font-family: var(--font-mono); letter-spacing: 0.06em; }

/* ---------- 14. 动效协议 ---------- */
html[data-js="on"] [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.52s var(--ease), transform 0.52s var(--ease);
}
html[data-js="on"] [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-col--contact { grid-column: 1 / -1; }
}

@media (max-width: 980px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-index { grid-template-columns: minmax(0, 1fr); }

  .nav-toggle { display: inline-flex; }
  .season-chip { display: none; }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    max-height: min(70vh, 520px);
    overflow-y: auto;
    padding: 6px 0 16px;
    background: var(--ink-panel);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 26px 54px rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s linear;
  }
  .primary-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-inline: var(--gutter);
  }
  .nav-item { border-bottom: 1px solid var(--line-soft); }
  .nav-link {
    width: 100%;
    padding: 15px 0;
    font-size: 16px;
    color: var(--cream);
  }
  .nav-link::after { left: 0; right: auto; width: 24px; bottom: 6px; }
  .nav-link::before { order: -1; }
  .nav-foot {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 16px var(--gutter) 0;
    color: var(--cyan);
  }
}

@media (max-width: 720px) {
  .grid-2,
  .grid-3 { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-col--contact { grid-column: auto; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .brand-sub { display: none; }
  .btn-sm { padding: 8px 11px; font-size: 12px; }
  .nav-toggle-label { display: none; }
  .nav-toggle { padding: 9px 10px; }
  .stat-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 16. 无障碍动效降级 ---------- */
@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;
  }
  html[data-js="on"] [data-reveal] {
    opacity: 1;
    transform: none;
  }
}