/* =========================================================
   BOB VOYAGE · 半岛体育 — /assets/site.css
   共享外壳：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%;
  scroll-behavior: smooth;
}

body { margin: 0; }

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

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

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

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

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

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩 */
  --ink: #0B0C0E;
  --ink-2: #14171C;
  --ink-3: #191D24;
  --red: #C8102E;
  --red-deep: #7E0C1E;
  --sand: #C9A227;
  --poplar: #E3B04B;
  --plateau: #2F6E8F;
  --plateau-lift: #74AFCE;
  --card-yellow: #F0B429;
  --card-red: #FF2B2B;
  --paper: #F5F1E8;
  --slate: #9AA2AD;

  --line: rgba(201, 162, 39, 0.26);
  --line-soft: rgba(245, 241, 232, 0.10);
  --glass: rgba(11, 12, 14, 0.86);
  --body-text: rgba(245, 241, 232, 0.86);

  /* 间距：8 的倍数 */
  --s1: 8px;
  --s2: 16px;
  --s3: 24px;
  --s4: 40px;
  --s5: 64px;
  --s6: 96px;
  --s7: 144px;

  /* 结构 */
  --header-h: 88px;
  --header-min: 56px;
  --max: 1440px;
  --rail: 240px;
  --gutter: 24px;

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

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.005em;
  padding-top: var(--header-h);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 极低透明度网格纹理，只在墨底上留痕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(245, 241, 232, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 241, 232, 0.022) 1px, transparent 1px);
  background-size: 64px 64px;
}

#main-content {
  position: relative;
  z-index: 1;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

:focus-visible {
  outline: 2px solid var(--poplar);
  outline-offset: 3px;
}

::selection {
  background: var(--red);
  color: var(--paper);
}

/* ---------- 4. 排版阶梯 ---------- */
.display-xl {
  font-size: clamp(40px, 7vw, 96px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-stretch: condensed;
}

.display-l {
  font-size: clamp(30px, 4.2vw, 56px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.015em;
  font-stretch: condensed;
}

.display-m {
  font-size: clamp(23px, 2.6vw, 34px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.num,
.footer-domain,
.nav-index,
.label {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sand);
}

/* ---------- 5. 工具类 ---------- */
.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--s3);
}

.container-wide {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--s2);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--s3);
}

.stack > * + * { margin-top: var(--s3); }

.section-rule {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-top: var(--s5);
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(201, 162, 39, 0.82);
}

.longscroll {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: var(--s3);
  align-items: start;
}

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

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--body-text);
}

.prose > * + * { margin-top: var(--s3); }

.prose h2 {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper);
}

.prose strong { color: var(--paper); font-weight: 700; }

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s1);
  padding: var(--s3) 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--s1);
}

.breadcrumb li + li::before {
  content: "/";
  color: rgba(201, 162, 39, 0.55);
}

.breadcrumb a { color: var(--slate); transition: color 0.18s var(--ease); }
.breadcrumb a:hover { color: var(--poplar); }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s1);
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.btn-primary {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}

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

.btn-ghost {
  background: transparent;
  border-color: rgba(201, 162, 39, 0.5);
  color: var(--paper);
}

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

.btn-sm { padding: 9px 14px; font-size: 13px; }

/* ---------- 7. 状态徽标 / 语义色块 ---------- */
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--poplar);
  flex: 0 0 auto;
  animation: bob-pulse 2.4s var(--ease) infinite;
}

@keyframes bob-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.5;
  white-space: nowrap;
}

.status-badge--live {
  color: var(--poplar);
  border-color: rgba(227, 176, 75, 0.45);
  background: rgba(227, 176, 75, 0.09);
}

.status-badge--pending {
  color: var(--plateau-lift);
  border-color: rgba(47, 110, 143, 0.6);
  background: rgba(47, 110, 143, 0.16);
}

.status-badge--archived {
  color: var(--slate);
  border-color: rgba(154, 162, 173, 0.34);
  background: rgba(154, 162, 173, 0.09);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}

.chip-card-yellow {
  color: var(--card-yellow);
  border-color: rgba(240, 180, 41, 0.42);
  background: rgba(240, 180, 41, 0.13);
}

.chip-card-red {
  color: var(--card-red);
  border-color: rgba(255, 43, 43, 0.42);
  background: rgba(255, 43, 43, 0.13);
}

/* ---------- 8. 数据带 ---------- */
.data-band {
  margin-top: var(--s4);
  padding: var(--s3) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(20, 23, 28, 0.92), rgba(11, 12, 14, 0.92));
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--s2) var(--s3);
}

/* ---------- 9. 纵向轮次轨道 ---------- */
.rail {
  position: sticky;
  top: calc(var(--header-min) + var(--s3));
  border-left: 1px solid var(--line-soft);
  padding-left: var(--s2);
}

.rail-list { display: flex; flex-direction: column; gap: 2px; }

.rail-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px var(--s1) 9px 12px;
  border-left: 2px solid transparent;
  margin-left: -14px;
  font-size: 13px;
  color: var(--slate);
  transition: color 0.18s var(--ease), border-color 0.22s var(--ease), background-color 0.18s var(--ease);
}

.rail-link:hover { color: var(--paper); background: rgba(245, 241, 232, 0.04); }

.rail-link[aria-current="true"] {
  color: var(--paper);
  border-left-color: var(--red);
  background: rgba(200, 16, 46, 0.08);
  font-weight: 700;
}

.rail-link[aria-current="true"] .num { color: var(--poplar); }

/* ---------- 10. 图片容器基础规则 ---------- */
.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-3);
  border: 1px solid var(--line-soft);
}

.figure-media {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(140deg, #191D24 0%, #0F1216 60%, #15191F 100%);
}

.figure-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.figure-16x9 .figure-media { aspect-ratio: 16 / 9; }
.figure-4x3 .figure-media { aspect-ratio: 4 / 3; }
.figure-1x1 .figure-media { aspect-ratio: 1 / 1; }
.figure-21x9 .figure-media { aspect-ratio: 21 / 9; }

.figure-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 12, 14, 0) 42%, rgba(11, 12, 14, 0.86) 100%);
}

.figure-caption {
  margin-top: var(--s1);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.figure--bleed {
  width: 100vw;
  max-width: 100vw;
  margin-left: 50%;
  transform: translateX(-50%);
  border-left: 0;
  border-right: 0;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s2);
}

/* ---------- 11. skip link ---------- */
.skip-link {
  position: fixed;
  left: var(--s2);
  top: -120px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--red);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: top 0.18s var(--ease);
}

.skip-link:focus { top: 8px; }

/* ---------- 12. 头部命令栏 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  height: var(--header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    height 0.22s var(--ease),
    background-color 0.22s var(--ease),
    border-color 0.22s var(--ease),
    backdrop-filter 0.22s var(--ease),
    -webkit-backdrop-filter 0.22s var(--ease);
}

.site-header[data-scrolled="true"] {
  height: var(--header-min);
  background: var(--glass);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  backdrop-filter: blur(14px) saturate(130%);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

.header-inner {
  position: relative;
  width: 100%;
  max-width: var(--max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--s3);
  display: flex;
  align-items: center;
  gap: var(--s2);
}

/* 品牌铭牌 */
.brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 14px;
  flex: 0 0 auto;
  min-width: 0;
}

.brand::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 28px;
  transform: translateY(-50%);
  background: var(--red);
}

.brand-name {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--paper);
  white-space: nowrap;
}

.brand-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 12px;
  border-left: 1px solid var(--line-soft);
  min-width: 0;
}

.brand-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  line-height: 1.4;
  color: var(--poplar);
  white-space: nowrap;
}

.brand-subline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  line-height: 1.4;
  color: var(--slate);
  white-space: nowrap;
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease);
}

.site-header[data-scrolled="true"] .brand-subline {
  opacity: 0;
  transform: translateY(-4px);
}

/* 主导航 */
.primary-nav { margin-left: auto; }

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 11px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--slate);
  white-space: nowrap;
  transition: color 0.18s var(--ease);
}

.nav-index {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(201, 162, 39, 0.7);
  transition: color 0.18s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: 1px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s var(--ease);
}

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

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

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

.header-cta { margin-left: var(--s2); flex: 0 0 auto; }

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(20, 23, 28, 0.6);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

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

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}

.nav-toggle-bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--paper);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 5px; }
.nav-toggle-bars span:nth-child(3) { top: 10px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) {
  transform: translateY(5px) 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(-5px) rotate(-45deg);
}

/* ---------- 13. 页脚数据带 ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: var(--s6);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    var(--red) 0%,
    var(--red) 16%,
    var(--sand) 16%,
    var(--sand) 22%,
    rgba(201, 162, 39, 0.18) 22%,
    rgba(201, 162, 39, 0.18) 100%);
}

.footer-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--s5) var(--s3) var(--s4);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) minmax(0, 2.2fr);
  gap: var(--s4);
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.footer-brand-name {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--paper);
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--poplar);
}

.footer-domain {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s3);
}

.footer-col-title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.footer-links li + li { margin-top: 9px; }

.footer-links a {
  position: relative;
  display: inline-block;
  padding-left: 15px;
  font-size: 14px;
  color: var(--slate);
  transition: color 0.18s var(--ease);
}

.footer-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: rgba(201, 162, 39, 0.6);
  transition: width 0.18s var(--ease), background-color 0.18s var(--ease);
}

.footer-links a:hover { color: var(--paper); }
.footer-links a:hover::before { width: 11px; background: var(--red); }

.footer-contact {
  margin-top: var(--s5);
  padding-top: var(--s3);
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--s2) var(--s3);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

.footer-contact-key {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--poplar);
}

.footer-contact-value { color: rgba(245, 241, 232, 0.82); }

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

.footer-bottom {
  margin-top: var(--s4);
  padding-top: var(--s2);
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px var(--s3);
}

.footer-legal-text {
  font-size: 12px;
  line-height: 1.7;
  color: rgba(154, 162, 173, 0.82);
}

.footer-utility {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  font-size: 12px;
}

.footer-utility a {
  color: rgba(245, 241, 232, 0.78);
  text-underline-offset: 3px;
  text-decoration: underline;
  text-decoration-color: rgba(201, 162, 39, 0.5);
  transition: color 0.18s var(--ease);
}

.footer-utility a:hover { color: var(--poplar); }

.footer-copy {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

/* ---------- 14. 中屏（平板） ---------- */
@media (max-width: 1080px) {
  :root {
    --header-h: 72px;
    --rail: 100%;
    --gutter: 16px;
  }

  .header-inner { padding: 0 var(--s2); gap: 12px; }
  .brand-meta { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta { margin-left: auto; padding: 9px 13px; font-size: 12px; }

  .primary-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    margin-left: 0;
    padding: var(--s2) var(--s2) var(--s4);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background: rgba(11, 12, 14, 0.98);
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }

  .site-header[data-scrolled="true"] .primary-nav { top: var(--header-min); }

  .primary-nav[data-open="true"] { display: block; }

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

  .nav-link {
    display: flex;
    padding: 15px 12px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
  }

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

  .nav-link[aria-current="page"] {
    border-left: 2px solid var(--red);
    background: rgba(200, 16, 46, 0.1);
  }

  .nav-index { font-size: 11px; }

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

  .rail {
    position: static;
    border-left: 0;
    padding-left: 0;
    border-bottom: 1px solid var(--line);
    padding-bottom: var(--s2);
    overflow-x: auto;
  }

  .rail-list { flex-direction: row; gap: var(--s1); }

  .rail-link {
    margin-left: 0;
    border-left: 0;
    border-bottom: 2px solid transparent;
    padding: 8px 12px;
    white-space: nowrap;
  }

  .rail-link[aria-current="true"] {
    border-left: 0;
    border-bottom-color: var(--red);
  }

  .footer-top {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s4);
  }

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

/* ---------- 15. 窄屏（手机） ---------- */
@media (max-width: 720px) {
  :root {
    --header-h: 64px;
    --s4: 32px;
    --s5: 48px;
    --s6: 64px;
    --s7: 88px;
  }

  body { font-size: 15px; }
  .prose { font-size: 16px; line-height: 1.7; }

  .brand-name { font-size: 17px; }
  .header-cta { display: none; }

  .container,
  .container-wide { padding: 0 var(--s2); }

  .header-inner { padding: 0 var(--s2); }

  .nav-toggle { margin-left: auto; }

  .footer-inner { padding: var(--s4) var(--s2) var(--s3); }

  .footer-cols { grid-template-columns: minmax(0, 1fr); gap: var(--s3); }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--s2);
  }

  .footer-utility { gap: var(--s2); }

  .grid-12 { grid-template-columns: minmax(0, 1fr); }

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

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

  .figure-21x9 .figure-media { aspect-ratio: 16 / 9; }
}

/* ---------- 16. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .status-dot { animation: none; opacity: 1; }
  .scroll-progress { transition: none; }
}