/* ==========================================================================
   9393 体育看台 — 共享样式表 /assets/site.css
   夜间球场看台 × 战术数据面板
   ========================================================================== */

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

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

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

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

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

button {
  font: inherit;
  color: inherit;
  background: transparent;
  border: 0;
  cursor: pointer;
}

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

input, textarea, select, fieldset { font: inherit; margin: 0; }

table { border-collapse: collapse; }

h1, h2, h3, h4, h5, h6 { font-weight: 400; }

/* ---------- 2. 设计变量 ---------- */
:root {
  /* 品牌色板 */
  --ink: #070B09;          /* 炭黑看台 */
  --field-deep: #0B1F17;   /* 深球场绿 */
  --field-board: #123328;  /* 战术板绿 */
  --paper: #F0E7D6;        /* 暖纸色 */
  --lime: #C8FF3E;         /* 荧光青柠 */
  --amber: #FF9D2E;        /* 琥珀橙 */
  --snow: #F4FAF7;         /* 冷白 */
  --mist: #9EB5AA;         /* 雾灰绿 */
  --line: #2A4036;         /* 细线绿 */
  --cyan: #66E0C2;         /* 数据青 */

  /* 派生层 */
  --ink-veil: rgba(7, 11, 9, 0.92);
  --board-veil: rgba(18, 51, 40, 0.78);
  --line-soft: rgba(42, 64, 54, 0.65);
  --snow-soft: rgba(244, 250, 247, 0.82);
  --lime-veil: rgba(200, 255, 62, 0.10);
  --amber-veil: rgba(255, 157, 46, 0.10);
  --paper-ink: #14100A;

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

  /* 字号阶梯 */
  --fs-display: clamp(56px, 9vw, 152px);
  --fs-section: clamp(32px, 4.6vw, 72px);
  --fs-data: clamp(36px, 5vw, 96px);
  --fs-body: clamp(16px, 0.35vw + 15px, 18px);
  --fs-label: 11px;

  /* 空间与网格 */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --w-max: 1440px;
  --gutter: clamp(20px, 4.4vw, 72px);
  --capsule: 999px;

  /* 动效 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 180ms;
}

/* ---------- 3. 中文基础排版 ---------- */
::selection {
  background: var(--lime);
  color: var(--ink);
}

body {
  margin: 0;
  padding-top: clamp(104px, 10vw, 128px);
  padding-bottom: var(--space-3);
  position: relative;
  background-color: var(--ink);
  background-image:
    radial-gradient(88% 58% at 10% -10%, rgba(18, 51, 40, 0.88) 0%, rgba(7, 11, 9, 0) 62%),
    radial-gradient(64% 46% at 94% 2%, rgba(200, 255, 62, 0.07) 0%, rgba(7, 11, 9, 0) 58%);
  background-repeat: no-repeat;
  color: var(--snow);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

html.nav-open { overflow: hidden; }

@supports (scrollbar-color: auto) {
  html {
    scrollbar-width: thin;
    scrollbar-color: var(--line) var(--ink);
  }
}

/* ---------- 4. 焦点与可访问性 ---------- */
:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 1px;
}

.cta-schedule:focus-visible,
.nav-toggle:focus-visible,
.skip-link:focus-visible {
  outline-offset: 3px;
  border-radius: var(--capsule);
}

/* ---------- 5. 头部：悬浮胶囊浮岛 ---------- */
.site-header {
  position: fixed;
  top: 24px;
  left: 0;
  right: 0;
  z-index: 120;
  padding-inline: clamp(12px, 2.2vw, 32px);
  pointer-events: none;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 200;
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--capsule);
  background: var(--lime);
  color: #07130C;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transform: translate(-50%, -180%);
  transition: transform var(--dur) var(--ease);
}

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

.header-shell {
  pointer-events: auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(10px, 1.8vw, 28px);
  width: 100%;
  max-width: var(--w-max);
  min-height: 58px;
  margin-inline: auto;
  padding: 9px 10px 9px 22px;
  background: var(--ink-veil);
  border: 1px solid var(--line);
  border-radius: var(--capsule);
  transition:
    padding var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.site-header.is-condensed .header-shell {
  padding-block: 6px;
  background: rgba(7, 11, 9, 0.98);
  border-color: rgba(200, 255, 62, 0.28);
  box-shadow: 0 24px 48px -36px #000;
}

/* 品牌字标 */
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex: none;
  padding-block: 4px;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.16em;
  color: var(--snow);
}

.brand-tag {
  margin-left: 8px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.6;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--mist);
}

/* 导航 */
.nav-cluster {
  display: flex;
  justify-content: center;
  min-width: 0;
}

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

.nav-item { display: flex; }

.nav-link {
  position: relative;
  display: inline-block;
  padding: 9px 13px;
  border: 1px solid transparent;
  border-radius: var(--capsule);
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--mist);
  transition:
    color var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--snow);
  background-color: rgba(18, 51, 40, 0.92);
  border-color: var(--line);
}

.nav-link[aria-current="page"] { color: var(--lime); }

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 3px;
  height: 1px;
  background: var(--lime);
}

/* 动作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.cta-schedule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--lime);
  border-radius: var(--capsule);
  background: var(--lime);
  color: #07130C;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition:
    background-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.cta-schedule:hover {
  background: #D9FF6B;
  box-shadow: 0 0 0 4px rgba(200, 255, 62, 0.14);
}

.cta-schedule:active { transform: translateY(1px); }

.cta-arrow {
  font-size: 12px;
  line-height: 1;
  transition: transform var(--dur) var(--ease);
}

.cta-schedule:hover .cta-arrow { transform: translate(2px, -2px); }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: var(--capsule);
  color: var(--snow);
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
  background-color: rgba(18, 51, 40, 0.9);
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 16px;
  height: 12px;
}

.nav-toggle-bars > span {
  display: block;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars > span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars > span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars > span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }

.nav-toggle-label {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.16em;
}

/* 阅读进度条 */
.scroll-meter {
  position: absolute;
  left: clamp(24px, 4vw, 48px);
  right: clamp(24px, 4vw, 48px);
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: rgba(42, 64, 54, 0.55);
  overflow: hidden;
  pointer-events: none;
}

.scroll-meter-fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--lime), var(--cyan));
  transition: width 120ms linear;
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 144px);
  background: linear-gradient(180deg, var(--field-deep) 0%, var(--ink) 72%);
  border-top: 1px solid var(--line);
  color: var(--snow);
}

.site-footer::before {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--lime) 0%, var(--cyan) 34%, var(--line) 34%, var(--line) 100%);
}

.footer-inner {
  width: 100%;
  max-width: var(--w-max);
  margin-inline: auto;
  padding: clamp(44px, 6vw, 92px) var(--gutter) clamp(24px, 3vw, 36px);
}

.footer-mast {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(24px, 3.4vw, 48px);
  padding-bottom: clamp(30px, 4.4vw, 60px);
  border-bottom: 1px solid var(--line);
}

.footer-brand-col { grid-column: span 3; }
.footer-col { grid-column: span 2; }
.footer-contact-col { grid-column: span 3; }

.footer-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-display);
}

.footer-logo strong {
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.footer-logo span {
  font-size: 18px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.18em;
  color: var(--snow);
}

.footer-note {
  margin-top: 16px;
  max-width: 30ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--snow-soft);
}

.footer-meta {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.footer-title {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer-links { display: block; }

.footer-links li + li { margin-top: 1px; }

.footer-link {
  display: inline-block;
  padding-block: 6px;
  border-bottom: 1px solid transparent;
  font-size: 14px;
  line-height: 1.6;
  color: var(--snow-soft);
  word-break: break-word;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

a.footer-link:hover,
a.footer-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.footer-contact { display: block; }

.footer-contact li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-block: 9px;
  border-bottom: 1px dashed var(--line-soft);
}

.footer-contact li:last-child { border-bottom: 0; }

.footer-key {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer-contact .footer-link {
  padding-block: 0;
  font-size: 13.5px;
  color: var(--snow);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  padding-top: clamp(20px, 2.4vw, 28px);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.footer-copy,
.footer-icp,
.footer-hours { margin: 0; }

.footer-icp { color: var(--lime); }

.footer-hours { color: var(--mist); }

/* ---------- 7. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--w-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.measure { max-width: 68ch; }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 32px);
}

.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-12 { grid-column: span 12; }

/* ---------- 8. 通用组件 ---------- */
/* 编号与眉标 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mist);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--lime);
}

.eyebrow--bare::before { display: none; }

.index-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.2em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

/* 分隔线 */
.rule {
  height: 1px;
  margin: 0;
  border: 0;
  background: var(--line);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--board-veil);
  color: var(--snow);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.08em;
  transition:
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
  background: rgba(18, 51, 40, 0.96);
}

.btn:active { transform: translateY(1px); }

.btn--lime {
  border-color: var(--lime);
  background: var(--lime);
  color: #07130C;
  font-weight: 700;
}

.btn--lime:hover,
.btn--lime:focus-visible {
  border-color: #D9FF6B;
  background: #D9FF6B;
  color: #07130C;
}

.btn--ghost { background: transparent; }

.btn--paper {
  border-color: #D8CCB6;
  background: var(--paper);
  color: var(--paper-ink);
}

.btn--paper:hover,
.btn--paper:focus-visible {
  border-color: var(--amber);
  background: #F7EFE0;
  color: var(--paper-ink);
}

/* 状态标签 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: var(--capsule);
  background: rgba(18, 51, 40, 0.66);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.chip--lime {
  border-color: rgba(200, 255, 62, 0.42);
  background: var(--lime-veil);
  color: var(--lime);
}

.chip--amber {
  border-color: rgba(255, 157, 46, 0.42);
  background: var(--amber-veil);
  color: var(--amber);
}

/* 面板卡片 */
.panel {
  padding: clamp(20px, 2.6vw, 32px);
  border: 1px solid var(--line);
  background: var(--field-board);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.panel:hover {
  border-color: rgba(200, 255, 62, 0.45);
  transform: translateY(-2px);
  box-shadow: 0 22px 40px -34px #000;
}

.panel--ink {
  background: rgba(7, 11, 9, 0.62);
}

.panel--paper {
  border-color: #D8CCB6;
  background-color: var(--paper);
  background-image: radial-gradient(rgba(20, 16, 10, 0.055) 1px, transparent 1px);
  background-size: 4px 4px;
  color: var(--paper-ink);
}

.panel--paper:hover {
  border-color: var(--amber);
  box-shadow: 0 22px 40px -34px rgba(0, 0, 0, 0.6);
}

/* 数据大字 */
.data-figure {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-data);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
}

/* 图片容器基础规则 */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--field-board);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--bleed { aspect-ratio: 32 / 9; }

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06) brightness(0.94);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 84% 0%, rgba(200, 255, 62, 0.12), transparent 62%),
    linear-gradient(180deg, rgba(7, 11, 9, 0) 42%, rgba(7, 11, 9, 0.58) 100%);
}

.media-frame--grid {
  background-image:
    radial-gradient(80% 60% at 78% 8%, rgba(200, 255, 62, 0.16), transparent 60%),
    linear-gradient(180deg, var(--field-board), var(--field-deep));
}

.media-frame--grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 64, 54, 0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 64, 54, 0.6) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.55;
}

.media-caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.7;
  letter-spacing: 0.14em;
  color: var(--mist);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 10px;
}

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

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

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

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

/* 长文阅读容器 */
.prose {
  max-width: 68ch;
  color: var(--snow-soft);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  margin-top: 1.9em;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 34px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.prose h3 {
  margin-top: 1.6em;
  font-size: clamp(17px, 1.6vw, 21px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--snow);
}

.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(102, 224, 194, 0.42);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.prose a:hover,
.prose a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.prose strong { color: var(--snow); font-weight: 600; }

.prose ul,
.prose ol { padding-left: 1.2em; }

.prose ul li {
  position: relative;
  list-style: none;
}

.prose ul li + li,
.prose ol li + li { margin-top: 0.5em; }

.prose ul li::before {
  content: "";
  position: absolute;
  left: -1.1em;
  top: 0.86em;
  width: 8px;
  height: 1px;
  background: var(--lime);
}

.prose ol { list-style: decimal; }

.prose ol li::marker {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--lime);
}

.prose blockquote {
  padding-left: 20px;
  border-left: 2px solid var(--lime);
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 300;
  line-height: 1.45;
  color: var(--snow);
}

.prose code {
  padding: 2px 6px;
  background: rgba(42, 64, 54, 0.6);
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--cyan);
}

/* ---------- 9. 显现动效 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
}

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

/* ---------- 10. 响应式 ---------- */
@media (max-width: 1180px) {
  .brand-tag { display: none; }
  .nav-link { padding: 9px 10px; font-size: 13px; }
  .brand-mark { font-size: 19px; }
  .brand-name { font-size: 16px; }

  .footer-brand-col { grid-column: span 12; }
  .footer-col { grid-column: span 4; }
  .footer-contact-col { grid-column: span 12; }
}

@media (max-width: 1024px) {
  body {
    padding-top: 32px;
    padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  }

  .site-header {
    top: auto;
    bottom: 12px;
    padding-inline: 12px;
  }

  .header-shell {
    padding: 8px 8px 8px 16px;
    min-height: 54px;
    gap: 10px;
  }

  .skip-link { top: 12px; }

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

  .nav-cluster {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    display: block;
    max-height: calc(100vh - 200px);
    padding: 14px;
    overflow-y: auto;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(11, 31, 23, 0.99);
    box-shadow: 0 -32px 60px -32px rgba(0, 0, 0, 0.92);
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition:
      opacity var(--dur) var(--ease),
      transform var(--dur) var(--ease),
      visibility var(--dur) var(--ease);
  }

  .nav-cluster[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

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

  .nav-link {
    display: flex;
    align-items: center;
    padding: 14px 10px;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    font-size: 15px;
    letter-spacing: 0.06em;
  }

  .nav-list .nav-item:last-child .nav-link { border-bottom: 0; }

  .nav-link:hover,
  .nav-link:focus-visible { background-color: rgba(18, 51, 40, 0.6); }

  .nav-link[aria-current="page"] { background-color: rgba(200, 255, 62, 0.08); }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"]::after {
    display: block;
    position: static;
    width: 6px;
    height: 6px;
    margin-left: auto;
    border-radius: 50%;
    background: var(--lime);
  }

  .grid-12 > [class*="span-"] { grid-column: span 12; }
}

@media (max-width: 720px) {
  .brand-mark { font-size: 18px; }
  .brand-name { font-size: 15px; letter-spacing: 0.12em; }
  .cta-schedule { padding: 10px 16px; font-size: 13px; }
  .nav-toggle { padding: 9px 12px; }

  .footer-col { grid-column: span 12; }
  .footer-base { justify-content: flex-start; }

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

@media (max-width: 420px) {
  .brand-name { display: none; }
  .cta-arrow { display: none; }
  .nav-toggle-label { display: none; }
  .footer-note { max-width: none; }
}

/* ---------- 11. 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

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

  .panel:hover {
    transform: none;
    box-shadow: none;
  }

  .cta-schedule:hover .cta-arrow { transform: none; }
}