/* ============================================================
   Z9赛场 · 共享样式表 /assets/site.css
   午夜深蓝底 + 荧光青操作层 + 粗边框硬阴影
   ============================================================ */

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

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

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

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

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

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

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

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

[hidden] { display: none !important; }

[id] { scroll-margin-top: 120px; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #0A1633;
  --ink-2: #12224A;
  --ink-deep: #08122A;
  --line: #22355F;
  --line-strong: #33507F;

  --neon: #2FF3D0;
  --electric: #3D7BFF;
  --red: #FF3B4E;
  --pitch: #1FD06A;
  --amber: #FFC24B;

  --white: #F4F7FF;
  --mist: #8C9BBF;
  --pale: #EDF1FA;

  --shadow-hard: 6px 6px 0 #050C1F;
  --glow-neon: 0 0 12px rgba(47, 243, 208, 0.5);

  --shell: 1240px;
  --gutter: 24px;

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

/* ---------- 3. 中文排版与基础 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(61, 123, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 123, 255, 0.055) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  color: var(--white);
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
}

h1, h2, h3, h4 {
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h1 { font-size: clamp(28px, 4vw, 56px); }
h2 { font-size: clamp(22px, 2.6vw, 34px); }
h3 { font-size: clamp(18px, 1.8vw, 22px); }

strong { font-weight: 800; }

::selection { background: var(--neon); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(47, 243, 208, 0.22);
}

/* ---------- 4. 布局工具 ---------- */
.shell {
  width: min(calc(100% - var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}

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

.breath { margin-block: 96px; }

#main-content { display: block; }

/* ---------- 5. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 300;
  padding: 10px 20px;
  background: var(--neon);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border: 2px solid var(--ink);
  transition: top 0.18s ease;
}

.skip-link:focus { top: 14px; }

/* ---------- 6. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(10, 22, 51, 0.95);
  border-bottom: 2px solid var(--line);
  backdrop-filter: blur(6px);
}

/* 6.1 比分条 */
.scorebar {
  background:
    linear-gradient(90deg, rgba(47, 243, 208, 0.08), transparent 42%, rgba(61, 123, 255, 0.1));
  border-bottom: 1px solid var(--line);
}

.scorebar__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  width: min(calc(100% - var(--gutter) * 2), var(--shell));
  height: 56px;
  margin-inline: auto;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: height 0.2s ease;
}

.site-header[data-condensed] .scorebar__inner { height: 44px; }

.scorebar__badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  background: rgba(47, 243, 208, 0.1);
  border: 2px solid var(--neon);
  color: var(--neon);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.scorebar__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mist);
}

.status-dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--pitch);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(31, 208, 106, 0.55);
  animation: z9-pulse 2.4s ease-out infinite;
}

@keyframes z9-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(31, 208, 106, 0.5); }
  70%  { box-shadow: 0 0 0 10px rgba(31, 208, 106, 0); }
  100% { box-shadow: 0 0 0 0 rgba(31, 208, 106, 0); }
}

.scorebar__link {
  margin-left: auto;
  padding: 4px 10px;
  border: 2px solid transparent;
  border-radius: 999px;
  color: var(--mist);
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}

.scorebar__link:hover {
  color: var(--neon);
  border-color: var(--neon);
  transform: translateX(-2px);
}

.scorebar__z9 {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 194, 75, 0.09);
  border: 2px solid var(--amber);
  color: var(--amber);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.scorebar__z9:hover {
  background: var(--amber);
  color: var(--ink);
  transform: translateY(-2px);
}

.scorebar__z9-arrow { font-size: 12px; line-height: 1; }

/* 6.2 品牌胶囊浮岛 */
.masthead { padding-block: 12px; }

.masthead__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px 8px 10px;
  background: var(--ink-2);
  border: 2px solid var(--line-strong);
  border-radius: 999px;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.brand:hover {
  border-color: var(--neon);
  transform: translateY(-2px);
  box-shadow: 0 4px 0 rgba(47, 243, 208, 0.35);
}

.brand__mark {
  padding: 5px 9px;
  background: var(--neon);
  color: var(--ink);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}

.brand__name {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

/* 6.3 栏目导航 */
.primary-nav { margin-left: auto; }

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-block;
  padding: 8px 15px;
  border: 2px solid transparent;
  border-radius: 999px;
  color: var(--mist);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease, background 0.16s ease;
}

.nav-link:hover {
  color: var(--white);
  border-color: var(--neon);
  transform: translateX(-2px);
}

.nav-link:active { transform: translateX(-2px) scale(0.98); }

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

/* 6.4 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 8px 15px;
  border: 2px solid var(--line-strong);
  border-radius: 999px;
  color: var(--white);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: border-color 0.16s ease, color 0.16s ease;
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.18s ease;
}

.site-header[data-open] .nav-toggle__bars i:first-child { transform: translateY(3px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars i:last-child { transform: translateY(-3px) rotate(-45deg); }

/* 6.5 右缘章节胶囊 */
.chapter-rail { display: none; }

.chapter-pill {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: rgba(10, 22, 51, 0.9);
  border: 2px solid var(--line-strong);
  border-radius: 999px;
  color: var(--mist);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.chapter-pill:hover {
  color: var(--white);
  border-color: var(--neon);
  transform: translateX(-2px);
}

.chapter-pill[aria-current="true"] {
  color: var(--ink);
  background: var(--neon);
  border-color: var(--neon);
  box-shadow: var(--glow-neon);
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  margin-top: 0;
  background: var(--ink);
  border-top: 2px solid var(--line);
}

/* 7.1 Z9 通道发光跑道 */
.z9-runway {
  position: relative;
  padding-block: 30px;
  background:
    linear-gradient(90deg, rgba(47, 243, 208, 0.14), rgba(61, 123, 255, 0.12) 52%, rgba(47, 243, 208, 0.14)),
    var(--ink-2);
  border-bottom: 2px solid var(--line);
  overflow: hidden;
}

.z9-runway::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon), transparent);
  opacity: 0.85;
}

.z9-runway__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: 20px;
}

.z9-runway__title {
  color: var(--neon);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  text-shadow: var(--glow-neon);
}

.z9-runway__note { font-size: 13px; color: var(--mist); }

.z9-runway__lanes {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.runway-lane {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 15px 16px;
  background: rgba(10, 22, 51, 0.72);
  border: 2px solid var(--line-strong);
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.runway-lane:hover,
.runway-lane:focus-visible {
  border-color: var(--neon);
  background: rgba(47, 243, 208, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 6px 0 rgba(47, 243, 208, 0.28);
}

.runway-lane__dot {
  width: 10px;
  height: 10px;
  background: var(--neon);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--neon);
}

.runway-lane__name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

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

/* 7.2 页脚主体 */
.footer-main {
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 0.8fr 1.5fr;
  gap: 32px;
  padding-block: 52px;
}

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

.footer-col__title {
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
  color: var(--white);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-brand__mark {
  padding: 5px 9px;
  background: var(--neon);
  color: var(--ink);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.footer-brand__name {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.footer-brand__text {
  max-width: 30ch;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}

.footer-links { display: flex; flex-direction: column; gap: 2px; }

.footer-links a {
  display: inline-block;
  padding: 5px 10px;
  border: 2px solid transparent;
  border-radius: 999px;
  color: var(--mist);
  font-size: 15px;
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}

.footer-links a:hover {
  color: var(--white);
  border-color: var(--neon);
  transform: translateX(-2px);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--mist);
  font-size: 14px;
  font-style: normal;
  line-height: 1.7;
}

.footer-contact__row {
  display: block;
  padding-left: 12px;
  border-left: 3px solid var(--line-strong);
  transition: border-color 0.16s ease;
}

.footer-contact__row:hover { border-color: var(--neon); }

.footer-contact__row strong {
  display: block;
  color: var(--white);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-contact__note {
  display: block;
  color: var(--pitch);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* 7.3 页脚底条 */
.footer-base {
  background: var(--ink-deep);
  border-top: 1px solid var(--line);
}

.footer-base__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 28px;
  padding-block: 18px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.footer-version { color: var(--pitch); }
.footer-icp { color: var(--mist); }
.footer-copy { margin-left: auto; }

/* ---------- 8. 通用组件 ---------- */
.prose {
  max-width: 42em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--white);
}

.prose p + p { margin-top: 1em; }
.prose h2 { margin-top: 2.2em; margin-bottom: 0.6em; }
.prose h3 { margin-top: 1.8em; margin-bottom: 0.5em; }
.prose ul { margin-top: 1em; padding-left: 0; }
.prose ul li { position: relative; padding-left: 20px; }
.prose ul li + li { margin-top: 0.4em; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--neon);
}
.prose a {
  color: var(--neon);
  border-bottom: 2px solid rgba(47, 243, 208, 0.4);
  transition: border-color 0.16s ease, color 0.16s ease;
}
.prose a:hover { border-color: var(--neon); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--neon);
  border: 2px solid var(--neon);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: 4px 4px 0 rgba(5, 12, 31, 0.9);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(5, 12, 31, 0.9);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 rgba(5, 12, 31, 0.9);
}

.btn--ghost { background: transparent; color: var(--neon); }
.btn--ghost:hover { background: rgba(47, 243, 208, 0.12); }

.btn--amber { background: var(--amber); border-color: var(--amber); }
.btn--amber:hover { background: var(--amber); }

.section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: end;
  gap: 8px 18px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
}

.chapter-num {
  color: var(--neon);
  font-family: var(--mono);
  font-size: clamp(28px, 4vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  text-shadow: var(--glow-neon);
}

.eyebrow {
  color: var(--mist);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  background: var(--ink-2);
  border: 2px solid var(--line-strong);
  border-left: 6px solid var(--neon);
}

.stat__num {
  color: var(--neon);
  font-family: var(--mono);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat__label {
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.card {
  padding: 22px;
  background: var(--ink-2);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 8px 8px 0 #050C1F;
  border-color: var(--neon);
}

.panel {
  padding: 24px;
  background: var(--ink-2);
  border: 2px solid var(--line-strong);
}

.data-table {
  width: 100%;
  border: 2px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.data-table caption {
  padding: 12px 14px;
  border-bottom: 2px solid var(--line-strong);
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.data-table thead th {
  background: rgba(47, 243, 208, 0.1);
  color: var(--neon);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.data-table tbody tr:nth-child(even) { background: var(--ink-2); }
.data-table tbody tr:hover { background: rgba(61, 123, 255, 0.12); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 2px solid var(--line-strong);
  border-radius: 999px;
  color: var(--mist);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.tag--neon { border-color: var(--neon); color: var(--neon); }
.tag--amber { border-color: var(--amber); color: var(--amber); }

.chip-filter {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 2px solid var(--line-strong);
  border-radius: 999px;
  color: var(--mist);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}

.chip-filter input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.chip-filter:hover { border-color: var(--neon); color: var(--white); }

.chip-filter:has(input:checked) {
  border-color: var(--neon);
  background: rgba(47, 243, 208, 0.12);
  color: var(--white);
}

.chip-filter:has(input:focus-visible) {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  border: 2px solid var(--line-strong);
  border-radius: 999px;
}

.segmented input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.segmented label {
  padding: 8px 18px;
  border-radius: 999px;
  color: var(--mist);
  font-size: 14px;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.segmented label:hover { color: var(--white); }

.segmented input:checked + label {
  background: var(--neon);
  color: var(--ink);
  font-weight: 700;
}

.segmented input:focus-visible + label {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

details {
  background: var(--ink-2);
  border: 2px solid var(--line-strong);
  transition: border-color 0.16s ease;
}

details:hover { border-color: var(--neon); }

summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker { display: none; }

summary::after {
  content: "+";
  color: var(--neon);
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
}

details[open] summary::after { content: "–"; }

details p,
details div {
  padding: 0 18px 18px;
  color: var(--mist);
  font-size: 15px;
}

.breadcrumb {
  color: var(--mist);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }

.breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }

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

.breadcrumb li:last-child::after { content: none; }

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

/* ---------- 9. 图像容器基础（供页面放置占位） ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 2px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(61, 123, 255, 0.22), transparent 55%),
    linear-gradient(315deg, rgba(47, 243, 208, 0.16), transparent 60%),
    var(--ink-2);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.media-frame:hover { border-color: var(--neon); transform: translateY(-3px); }

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame--scan::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(10, 22, 51, 0.24) 0 2px, transparent 2px 4px);
  pointer-events: none;
}

.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 13px;
  background: rgba(10, 22, 51, 0.9);
  border-top: 2px solid var(--neon);
  color: var(--white);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

/* ---------- 10. 响应式 ---------- */
@media (max-width: 1180px) {
  .footer-main { grid-template-columns: 1fr 1fr; gap: 28px 32px; }
  .footer-contact__row { padding-left: 10px; }
}

@media (max-width: 1024px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-copy { margin-left: 0; }
}

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

  .primary-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    z-index: 5;
    display: none;
    margin-left: 0;
    padding: 12px;
    background: var(--ink-2);
    border: 2px solid var(--line-strong);
    border-radius: 18px;
    box-shadow: 8px 8px 0 rgba(5, 12, 31, 0.85);
  }

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

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    display: block;
    padding: 12px 15px;
    border-radius: 12px;
    font-size: 16px;
  }

  .nav-link:hover { transform: none; }

  .z9-runway__lanes { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .breath { margin-block: 72px; }
}

@media (max-width: 720px) {
  .scorebar__inner { gap: 10px; font-size: 12px; }
  .scorebar__link { display: none; }
  .scorebar__status { font-size: 12px; }
  .brand__name { font-size: 18px; }
  .brand__mark { font-size: 18px; }
}

@media (max-width: 640px) {
  :root { --gutter: 16px; }

  body { font-size: 16px; }

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

  .footer-main { grid-template-columns: minmax(0, 1fr); gap: 26px; }

  .z9-runway__lanes { grid-template-columns: minmax(0, 1fr); }

  .z9-runway__head { flex-direction: column; align-items: flex-start; }

  .footer-base__inner { flex-direction: column; align-items: flex-start; }

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

/* ---------- 11. 减弱动效 ---------- */
@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;
  }

  .status-dot { animation: none; box-shadow: 0 0 0 3px rgba(31, 208, 106, 0.28); }

  .card:hover,
  .media-frame:hover,
  .runway-lane:hover,
  .brand:hover { transform: none; }
}