/* ==========================================================================
   196体育赛事 · 共享样式表 /assets/site.css
   墨底黑绿 + 荧光青信号 + 暖橙比分 ｜ 悬浮胶囊导航 ｜ 展览画册式留白
   ========================================================================== */

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

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

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

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

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
}

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

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

/* ---------- 2. 设计变量 ---------- */
:root {
  /* 色彩 */
  --ink: #0A1311;
  --charcoal: #121A18;
  --deep-green: #16302A;
  --edge: #1F4038;
  --white: #E9F5F2;
  --mist: #9DB6B0;
  --signal: #2FE6C6;
  --signal-deep: #1AB79C;
  --score: #FF8A3D;
  --score-soft: #FFD3A8;
  --veil: rgba(58, 92, 85, 0.4);
  --muted: #5F7C76;

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

  /* 尺度 */
  --shell: 1240px;
  --gutter: clamp(18px, 4vw, 56px);
  --radius-lg: 34px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --ease: cubic-bezier(.22, .68, .32, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.75;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1100px 620px at 82% -6%, rgba(47, 230, 198, 0.09), transparent 62%),
    radial-gradient(820px 520px at 6% 96%, rgba(255, 138, 61, 0.05), transparent 60%);
}

::selection {
  background: var(--signal);
  color: #04211C;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 6px;
}

#main-content { scroll-margin-top: 120px; }

/* ---------- 4. 工具类 ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.muted { color: var(--mist); }
.text-signal { color: var(--signal); }
.text-score { color: var(--score); }

.mono {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.score {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--score);
}

.stamp {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.divider {
  height: 1px;
  border: 0;
  margin-block: clamp(28px, 4vw, 52px);
  background: linear-gradient(90deg, var(--edge), rgba(31, 64, 56, 0.12) 62%, transparent);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--edge);
  border-radius: 6px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  white-space: nowrap;
}

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 14px;
  z-index: 200;
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--signal);
  color: #04211C;
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-220%);
  transition: transform 0.22s var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

/* ---------- 6. 站点头部 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  padding: 18px clamp(14px, 3.2vw, 40px) 0;
  pointer-events: none;
}

.header-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  display: flex;
  align-items: stretch;
  transition: max-width 0.42s var(--ease);
}

.nav-island {
  pointer-events: auto;
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  padding: 8px 10px 8px 16px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background:
    linear-gradient(120deg, rgba(18, 26, 24, 0.88), rgba(10, 19, 17, 0.74));
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  box-shadow:
    0 22px 46px -30px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(233, 245, 242, 0.05);
  transition:
    padding 0.42s var(--ease),
    background 0.42s var(--ease),
    border-color 0.3s var(--ease);
}

.site-header[data-scrolled] .header-shell { max-width: 1060px; }

.site-header[data-scrolled] .nav-island {
  padding: 5px 8px 5px 12px;
  border-color: rgba(31, 64, 56, 0.9);
  background:
    linear-gradient(120deg, rgba(14, 22, 20, 0.96), rgba(10, 19, 17, 0.92));
}

/* 品牌 */
.brand-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  padding: 3px 6px 3px 2px;
  border-radius: 999px;
}

.brand-mark {
  position: relative;
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--deep-green);
  box-shadow: 0 0 0 1px var(--edge), 0 0 20px -6px rgba(47, 230, 198, 0.6);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 2px solid var(--signal);
  border-right-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: rotate(-35deg);
  animation: signal-spin 7s linear infinite;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: var(--score);
}

@keyframes signal-spin {
  to { transform: rotate(325deg); }
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -0.015em;
  color: var(--white);
  white-space: nowrap;
}

.brand-sub {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
  white-space: nowrap;
}

/* 主导航 */
.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

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

.nav-link {
  display: inline-block;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--mist);
  white-space: nowrap;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.nav-link:hover {
  color: var(--white);
  background-color: rgba(47, 230, 198, 0.09);
}

.nav-link[aria-current="page"] {
  color: #04211C;
  font-weight: 700;
  background-color: var(--signal);
  box-shadow: 0 0 22px -8px rgba(47, 230, 198, 0.85);
}

/* 工具区 */
.island-tail {
  flex: 0 0 auto;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(8px, 1vw, 14px);
}

.signal-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
  white-space: nowrap;
}

.signal-dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  animation: signal-pulse 2.4s var(--ease) infinite;
}

@keyframes signal-pulse {
  0%, 100% {
    opacity: 0.5;
    box-shadow: 0 0 0 2px rgba(47, 230, 198, 0.1);
  }
  50% {
    opacity: 1;
    box-shadow: 0 0 0 6px rgba(47, 230, 198, 0.14);
  }
}

.search-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background-color: rgba(10, 19, 17, 0.66);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.search-field:focus-within {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(47, 230, 198, 0.16);
}

.search-icon {
  position: relative;
  flex: none;
  width: 13px;
  height: 13px;
}

.search-icon::before {
  content: "";
  position: absolute;
  inset: 0 3px 3px 0;
  border: 1.5px solid var(--signal);
  border-radius: 50%;
}

.search-icon::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 5px;
  height: 1.5px;
  background-color: var(--signal);
  transform: rotate(45deg);
  transform-origin: right center;
}

.search-input {
  width: 168px;
  border: 0;
  background: transparent;
  outline: none;
  font-size: 13.5px;
  color: var(--white);
}

.search-input::placeholder { color: var(--muted); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition:
    background-color 0.22s var(--ease),
    color 0.22s var(--ease),
    border-color 0.22s var(--ease),
    transform 0.22s var(--ease),
    box-shadow 0.22s var(--ease);
}

.btn-signal {
  background-color: var(--signal);
  color: #04211C;
  box-shadow: 0 12px 32px -16px rgba(47, 230, 198, 0.95);
}

.btn-signal:hover {
  background-color: var(--signal-deep);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--edge);
  background-color: rgba(22, 48, 42, 0.35);
  color: var(--white);
}

.btn-ghost:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.island-cta { flex: none; }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 14px 8px 13px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background-color: rgba(22, 48, 42, 0.5);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.06em;
  flex: none;
}

.nav-toggle-bars {
  position: relative;
  flex: none;
  width: 16px;
  height: 10px;
}

.nav-toggle-bars i {
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  border-radius: 2px;
  background-color: var(--signal);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.nav-toggle-bars i:first-child { top: 0; }
.nav-toggle-bars i:last-child { bottom: 0; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:first-child {
  transform: translateY(4.25px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:last-child {
  transform: translateY(-4.25px) rotate(-45deg);
}

/* ---------- 7. 站点页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(72px, 11vw, 150px);
  background-color: var(--charcoal);
  border-top: 1px solid var(--edge);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: clamp(20px, 7vw, 140px);
  width: 190px;
  height: 2px;
  background: linear-gradient(90deg, var(--signal), rgba(47, 230, 198, 0));
}

.footer-shell {
  width: min(100% - var(--gutter) * 2, var(--shell));
  margin-inline: auto;
  padding: clamp(54px, 7vw, 84px) 0 clamp(38px, 4.6vw, 58px);
  display: grid;
  grid-template-columns: minmax(230px, 1.4fr) repeat(4, minmax(118px, 1fr));
  gap: clamp(26px, 3.2vw, 50px);
}

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

.footer-brand-line {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.55;
  letter-spacing: -0.015em;
  max-width: 22ch;
  color: var(--white);
}

.footer-region {
  margin-top: 12px;
  font-size: 13px;
  color: var(--mist);
}

.footer-signal {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

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

.footer-col-title {
  margin-bottom: 16px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.footer-links {
  display: grid;
  gap: 9px;
}

.footer-link {
  display: inline-block;
  font-size: 14px;
  color: rgba(233, 245, 242, 0.82);
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.footer-link:hover {
  color: var(--signal);
  transform: translateX(3px);
}

.footer-base {
  width: min(100% - var(--gutter) * 2, var(--shell));
  margin-inline: auto;
  padding: 26px 0 36px;
  border-top: 1px solid var(--edge);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px 48px;
  align-items: end;
}

.footer-contact {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
}

.footer-field {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--white);
}

.footer-label {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.footer-note {
  grid-column: 1 / 2;
  max-width: 64ch;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.footer-legal {
  grid-column: 2 / 3;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  text-align: right;
}

/* ---------- 8. 内容容器与通用组件 ---------- */
.page-shell {
  position: relative;
  z-index: 1;
  width: min(100% - var(--gutter) * 2, var(--shell));
  margin-inline: auto;
  padding-top: clamp(120px, 15vw, 176px);
}

.section {
  position: relative;
  padding-block: clamp(44px, 6vw, 88px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
}

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

.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.4vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.lede {
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.prose p + p { margin-top: 1em; }
.prose p { color: var(--mist); }
.prose strong { color: var(--white); font-weight: 700; }

/* 网格 */
.grid {
  display: grid;
  gap: clamp(20px, 2.6vw, 40px);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split-5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.split-7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

/* 有机色块面板 */
.panel {
  border-radius: var(--radius-lg);
  background-color: var(--deep-green);
  padding: clamp(22px, 2.8vw, 38px);
}

/* 数据块 */
.stat {
  padding: 20px 22px;
  border-left: 2px solid var(--signal);
  background: linear-gradient(90deg, rgba(22, 48, 42, 0.72), rgba(22, 48, 42, 0));
}

.stat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--white);
}

.stat-label {
  margin-top: 6px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

/* 分类标签 */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background-color: var(--deep-green);
  font-size: 13px;
  color: var(--mist);
  cursor: pointer;
  transition:
    color 0.2s var(--ease),
    border-color 0.2s var(--ease),
    background 0.2s var(--ease);
}

.chip:hover {
  color: var(--white);
  border-color: var(--signal-deep);
}

.chip[aria-pressed="true"],
.chip.is-active {
  background-color: var(--signal);
  border-color: var(--signal);
  color: #04211C;
  font-weight: 700;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.breadcrumb a {
  color: var(--mist);
  transition: color 0.2s var(--ease);
}

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

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 9px;
  color: var(--muted);
}

/* 时间轴 */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background-color: var(--edge);
}

.timeline-item {
  position: relative;
  padding-bottom: 34px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--ink);
  border: 2px solid var(--signal);
}

/* 图片容器 */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  background-color: var(--deep-green);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.08) brightness(0.8);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg, rgba(22, 48, 42, 0.18), rgba(10, 19, 17, 0.74));
}

.media-frame[data-ratio="wide"] { aspect-ratio: 21 / 9; }
.media-frame[data-ratio="tall"] { aspect-ratio: 3 / 4; }
.media-frame[data-ratio="square"] { aspect-ratio: 1 / 1; }

/* ---------- 9. 滚动进度与显现 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 100%;
  height: 2px;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--signal), var(--score));
}

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

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* ---------- 10. 响应式 ---------- */
@media (max-width: 1180px) {
  .signal-chip { display: none; }
  .search-input { width: 140px; }
}

@media (max-width: 1080px) {
  .footer-shell {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  .site-header { padding-top: 14px; }

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

  .search-field { display: none; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 12px);
    display: block;
    padding: 0 16px;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    border: 1px solid transparent;
    border-radius: 26px;
    background-color: rgba(10, 19, 17, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    box-shadow: 0 30px 60px -34px rgba(0, 0, 0, 0.95);
    transition:
      max-height 0.34s var(--ease),
      opacity 0.22s var(--ease),
      visibility 0.34s,
      padding 0.34s var(--ease),
      border-color 0.22s var(--ease);
  }

  .site-nav[data-open] {
    max-height: min(66vh, 520px);
    padding: 14px 16px;
    opacity: 1;
    visibility: visible;
    border-color: var(--edge);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    display: block;
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 15px;
  }

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

  .footer-note { grid-column: 1 / -1; }

  .footer-legal {
    grid-column: 1 / -1;
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3,
  .split-5-7,
  .split-7-5 {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 680px) {
  body { font-size: 16px; }

  .brand-sub { display: none; }

  .brand-name { font-size: 15.5px; }

  .nav-island { padding: 7px 8px 7px 12px; }

  .site-header[data-scrolled] .nav-island { padding: 5px 7px 5px 10px; }

  .island-cta { padding: 8px 14px; font-size: 13px; }

  .nav-toggle { padding: 8px 12px; }

  .nav-toggle-text { display: none; }

  .footer-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 20px;
  }

  .footer-contact { gap: 8px 18px; }
}

@media (max-width: 420px) {
  .footer-shell { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 11. 动效降级 ---------- */
@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;
  }

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

  .scroll-progress { display: none; }
}