/* ============================================================
   乐动体育 · 赛事数据终端  /assets/site.css
   共享层：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ============================================================ */

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

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

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

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

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

button { padding: 0; background: none; border: 0; font: inherit; color: inherit; cursor: pointer; }

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

table { border-collapse: collapse; border-spacing: 0; }

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --carbon: #0E1116;
  --carbon-2: #161B22;
  --blue: #2D6BFF;
  --blue-deep: #1E56E0;
  --green: #17E27F;
  --red: #FF3B4E;
  --amber: #FFB03A;
  --white: #E8EDF5;
  --grey: #8A94A6;
  --mist: #A9C6FF;
  --line: #232A34;
  --ink-soft: #C6CFDD;
  --shell: 1320px;
  --gutter: clamp(16px, 4vw, 40px);
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --step-12: 12px;
  --step-14: 14px;
  --step-16: 16px;
  --step-20: 20px;
  --step-28: 28px;
  --step-44: 44px;
  --step-72: 72px;
  --step-120: 120px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. 基础排版（中文优先） ---------- */
body {
  min-height: 100vh;
  background-color: var(--carbon);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(45, 107, 255, .16), transparent 70%),
    radial-gradient(760px 460px at 98% 2%, rgba(23, 226, 127, .10), transparent 72%),
    linear-gradient(180deg, #10141B 0%, #0E1116 55%, #0B0E12 100%);
  background-repeat: no-repeat;
  color: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.18;
  color: var(--white);
}

h1 { font-size: clamp(30px, 4.6vw, 52px); }
h2 { font-size: clamp(24px, 3.2vw, 36px); }
h3 { font-size: clamp(18px, 2.2vw, 22px); }

p { max-width: 42em; }

strong { font-weight: 700; color: #F2F6FB; }

::selection { background: rgba(23, 226, 127, .28); color: #FFFFFF; }

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

/* ---------- 4. 布局与工具类 ---------- */
.shell,
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(44px, 6.5vw, 96px); }

.section + .section { border-top: 1px solid var(--line); }

.stack > * + * { margin-top: clamp(12px, 1.6vw, 20px); }

.mono,
.card-index,
.section-num,
.stat-value,
.eyebrow,
.data-table,
.legal-meta {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.eyebrow {
  display: inline-block;
  font-size: var(--step-12);
  letter-spacing: .22em;
  color: var(--green);
}

.display {
  font-family: var(--mono);
  font-weight: 200;
  font-size: clamp(52px, 11vw, 120px);
  line-height: .9;
  letter-spacing: -.045em;
  color: var(--white);
}

.lede {
  max-width: 38em;
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--ink-soft);
  line-height: 1.75;
}

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

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.grid-asym {
  display: grid;
  grid-template-columns: minmax(160px, 220px) minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
  align-items: start;
}

/* 章节头（编号体系） */
.section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 18px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.section-num {
  font-size: var(--step-14);
  letter-spacing: .2em;
  color: var(--green);
}

.section-title {
  font-size: clamp(22px, 3.2vw, 44px);
  letter-spacing: -.02em;
}

.section-note {
  grid-column: 2;
  font-size: var(--step-14);
  color: var(--grey);
}

/* ---------- 5. 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  color: var(--white);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .08em;
  transition: border-color .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease);
}

.btn:hover {
  border-color: var(--blue);
  background: rgba(45, 107, 255, .14);
  color: #FFFFFF;
}

.btn--primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #FFFFFF;
}

.btn--primary:hover {
  border-color: var(--blue-deep);
  background: var(--blue-deep);
}

.btn--ghost {
  border-color: transparent;
  color: var(--mist);
}

.btn--ghost:hover {
  border-color: var(--line);
  background: rgba(169, 198, 255, .08);
  color: var(--white);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .08em;
  color: var(--mist);
  white-space: nowrap;
}

.tag--live { border-color: rgba(23, 226, 127, .5); color: var(--green); }
.tag--up { border-color: rgba(255, 59, 78, .5); color: var(--red); }
.tag--down { border-color: rgba(23, 226, 127, .5); color: var(--green); }
.tag--hold { border-color: rgba(255, 176, 58, .5); color: var(--amber); }

/* ---------- 6. 头部 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 2px;
  background: var(--green);
  color: #06210F;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .06em;
  transition: top .16s var(--ease);
}

.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(14, 17, 22, .94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-deck {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px clamp(16px, 3vw, 40px);
  padding-block: 14px 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(23, 226, 127, .14);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
  transition: color .18s var(--ease);
}

.brand-line {
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .16em;
  color: var(--grey);
}

.brand:hover .brand-name { color: var(--green); }

.header-sub {
  max-width: none;
  font-size: 13px;
  color: var(--grey);
  letter-spacing: .04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.season-axis {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.axis-label {
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .2em;
  color: var(--grey);
  white-space: nowrap;
}

.axis-track {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}

.axis-track::-webkit-scrollbar { display: none; }

.axis-item {
  flex: 0 0 auto;
  padding: 6px 8px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .04em;
  color: var(--grey);
  transition: color .14s var(--ease), background-color .14s var(--ease);
}

.axis-item:hover {
  color: var(--white);
  background: rgba(45, 107, 255, .16);
}

.axis-item[aria-pressed="true"] {
  background: var(--green);
  color: #06210F;
}

.header-caliber {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .12em;
  color: var(--mist);
  white-space: nowrap;
  transition: border-color .18s var(--ease), color .18s var(--ease), background-color .18s var(--ease);
}

.header-caliber:hover {
  border-color: var(--blue);
  background: rgba(45, 107, 255, .16);
  color: #FFFFFF;
}

.header-nav-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 52px;
  border-top: 1px solid var(--line);
}

.site-nav { flex: 1 1 auto; min-width: 0; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 15px 14px;
  font-size: 14px;
  letter-spacing: .04em;
  color: #9FB0C6;
  transition: color .18s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s var(--ease), background-color .2s var(--ease);
}

.nav-link:hover { color: var(--white); }
.nav-link:hover::after { transform: scaleX(1); background: var(--mist); }

.nav-link[aria-current="page"] {
  color: var(--white);
  font-weight: 700;
}

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--blue);
}

.header-meta {
  max-width: none;
  margin-left: auto;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .1em;
  color: var(--grey);
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .16em;
  color: var(--white);
}

.nav-toggle:hover { border-color: var(--blue); }

.nav-toggle-bar {
  position: relative;
  display: block;
  width: 16px;
  height: 1px;
  background: var(--green);
  transition: background-color .16s var(--ease);
}

.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1px;
  background: var(--green);
  transition: transform .16s var(--ease);
}

.nav-toggle-bar::before { top: -5px; }
.nav-toggle-bar::after { top: 5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-5px) rotate(-45deg); }

.nav-toggle-label { line-height: 1; }

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
}

.scroll-progress-fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--green));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .12s linear;
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  margin-top: clamp(56px, 8vw, 120px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(22, 27, 34, .7) 0%, rgba(11, 14, 18, 1) 100%);
}

.footer-deck {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(130px, 1fr)) 1.5fr;
  gap: clamp(20px, 3vw, 40px);
  padding-block: clamp(36px, 5vw, 64px);
}

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

.footer-brand {
  max-width: none;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--white);
}

.footer-line {
  max-width: none;
  margin-top: 4px;
  font-size: 13px;
  color: var(--grey);
}

.footer-domain {
  max-width: none;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .06em;
  color: var(--mist);
  word-break: break-all;
}

.footer-col-title {
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: var(--step-12);
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--grey);
}

.footer-list li + li { margin-top: 8px; }

.footer-list a {
  display: inline-block;
  font-size: 14px;
  color: #B9C4D4;
  transition: color .16s var(--ease);
}

.footer-list a:hover { color: var(--green); }

.contact-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px;
  font-size: 13px;
}

.contact-list li + li { margin-top: 8px; }

.contact-key {
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .06em;
  color: var(--grey);
}

.contact-val {
  color: var(--ink-soft);
  word-break: break-word;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px 26px;
  border-top: 1px solid var(--line);
}

.legal-line {
  max-width: 60em;
  font-size: var(--step-12);
  color: var(--grey);
}

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

.legal-meta {
  max-width: none;
  font-size: var(--step-12);
  letter-spacing: .08em;
  color: var(--grey);
}

.to-top {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .12em;
  color: var(--mist);
  transition: border-color .18s var(--ease), color .18s var(--ease), background-color .18s var(--ease);
}

.to-top:hover {
  border-color: var(--blue);
  background: rgba(45, 107, 255, .14);
  color: #FFFFFF;
}

/* ---------- 8. 内容组件 ---------- */
/* 面包屑 */
.breadcrumb {
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .1em;
  color: var(--grey);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

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

.breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}

.breadcrumb a { transition: color .16s var(--ease); }
.breadcrumb a:hover { color: var(--green); }

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

/* 口径条 */
.caliber-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 20px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--green);
  background: rgba(22, 27, 34, .82);
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .06em;
  color: var(--grey);
}

.caliber-bar strong { color: var(--mist); font-weight: 500; }

/* 轴块 */
.axis {
  position: sticky;
  top: 132px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.axis-title {
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .2em;
  color: var(--grey);
}

.axis-list li + li { margin-top: 2px; }

.axis-link {
  display: block;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--grey);
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.axis-link:hover {
  color: var(--white);
  background: rgba(45, 107, 255, .10);
}

.axis-link[aria-current="true"],
.axis-link[aria-current="page"] {
  color: var(--white);
  border-left-color: var(--green);
  background: linear-gradient(90deg, rgba(45, 107, 255, .18), transparent);
}

/* 卡片 */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--carbon-2);
  transition: transform .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(23, 226, 127, .55);
  background: #19202A;
}

.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.card-index {
  font-size: var(--step-12);
  letter-spacing: .16em;
  color: var(--blue);
}

.card-title {
  font-size: var(--step-20);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--white);
}

.card-body {
  font-size: 15px;
  color: var(--ink-soft);
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .06em;
  color: var(--grey);
}

/* 读数 */
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.stat-value {
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--green);
}

.stat-unit {
  font-family: var(--mono);
  font-size: var(--step-12);
  color: var(--grey);
}

.stat-label {
  font-size: 13px;
  color: var(--grey);
}

/* 表格 */
.data-table {
  width: 100%;
  font-size: 13px;
  letter-spacing: .02em;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--grey);
}

.data-table td { color: #D5DDE9; }

.data-table tbody tr:hover { background: rgba(45, 107, 255, .08); }

/* 折叠 */
.fold {
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--carbon-2);
}

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

.fold-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  text-align: left;
  color: var(--white);
  transition: color .16s var(--ease);
}

.fold-toggle:hover { color: var(--green); }

.fold-toggle::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--blue);
}

.fold-toggle[aria-expanded="true"]::after {
  content: "－";
  color: var(--green);
}

.fold-panel {
  padding: 4px 18px 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--ink-soft);
}

/* 正文容器 */
.prose {
  max-width: 38em;
  font-size: 16px;
  line-height: 1.75;
  color: #C9D2E0;
}

.prose h2,
.prose h3 { margin-top: 2em; margin-bottom: .5em; }

.prose p + p { margin-top: 1em; }

.prose ul,
.prose ol { margin-top: 1em; }

.prose li {
  position: relative;
  padding-left: 18px;
}

.prose li + li { margin-top: .5em; }

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 8px;
  height: 1px;
  background: var(--green);
}

.prose a {
  color: var(--mist);
  border-bottom: 1px solid rgba(169, 198, 255, .4);
}

.prose a:hover { color: var(--green); border-bottom-color: rgba(23, 226, 127, .6); }

/* 图片容器 */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  background-color: #0B0E13;
  background-image:
    radial-gradient(120% 90% at 18% 0%, rgba(45, 107, 255, .22), transparent 62%),
    radial-gradient(100% 85% at 92% 100%, rgba(23, 226, 127, .13), transparent 66%),
    linear-gradient(180deg, #0D1218 0%, #101722 100%);
}

.media > img,
.media > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.96) contrast(1.04);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(232, 237, 245, .035) 0 1px, transparent 1px 4px);
}

.media--wide { aspect-ratio: 21 / 9; }
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--square { aspect-ratio: 1 / 1; }

.media-caption {
  max-width: none;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: var(--step-12);
  letter-spacing: .06em;
  color: var(--grey);
}

/* ---------- 9. 显现（渐进增强，无 JS 时默认可见） ---------- */
.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}

.reveal-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 10. 响应式 ---------- */
@media (max-width: 1100px) {
  .footer-deck { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-identity { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  .header-deck { grid-template-columns: auto minmax(0, 1fr) auto; }
  .header-sub { display: none; }
  .header-meta { font-size: 11px; }
  .axis { position: static; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    padding: 6px var(--gutter) 18px;
    background: #10151C;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item + .nav-item { border-top: 1px solid var(--line); }

  .nav-link {
    display: block;
    padding: 15px 2px;
    font-size: 16px;
  }

  .nav-link::after {
    left: 2px;
    right: auto;
    width: 22px;
    bottom: 8px;
  }

  .header-meta { display: none; }
  .header-nav-row { min-height: 56px; }

  .grid--2,
  .grid--3,
  .grid-asym { grid-template-columns: minmax(0, 1fr); }

  .media--wide { aspect-ratio: 16 / 9; }
}

@media (max-width: 720px) {
  .header-deck {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: 10px;
    padding-block: 12px;
  }

  .season-axis {
    grid-column: 1 / -1;
    grid-row: 2;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }

  .header-caliber {
    grid-column: 2;
    grid-row: 1;
    padding: 7px 10px;
    font-size: 11px;
  }

  .axis-track { flex: 1 1 auto; }
}

@media (max-width: 680px) {
  .footer-deck { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
  .contact-list li { grid-template-columns: 84px minmax(0, 1fr); }
  .display { font-size: clamp(44px, 16vw, 72px); }
}

/* ---------- 11. 动效偏好 ---------- */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  .card:hover { transform: none; }

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