/* =========================================================
   博喜体育赛事 · 共享站点样式 /assets/site.css
   ========================================================= */

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

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

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

ul[class],
ol[class] { list-style: none; }

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

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

a { color: inherit; }

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

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --navy-900: #0A1726;
  --navy-800: #0E1F30;
  --navy-700: #12283D;
  --green-900: #0E3B2A;
  --green-600: #1F8A5B;
  --green-300: #63E0A5;
  --yellow: #F2C230;
  --red: #E0452F;
  --silver: #B9C6D2;
  --slate: #6E8296;
  --paper: #F4F7F9;
  --ink: #E8EEF3;

  --line: rgba(185, 198, 210, .20);
  --line-strong: rgba(185, 198, 210, .40);
  --line-green: rgba(99, 224, 165, .45);

  --shell-max: 1280px;
  --capsule-max: 1380px;
  --gutter: clamp(16px, 4vw, 48px);
  --rail: 72px;

  --t-fast: 140ms;
  --t: 220ms;
  --t-slow: 400ms;
  --ease: cubic-bezier(.22, .8, .28, 1);

  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, "Courier New", monospace;
}

/* ---------- 3. 基础页面 ---------- */
body {
  min-height: 100vh;
  background-color: var(--navy-900);
  background-image:
    radial-gradient(70% 520px at 10% 0%, rgba(31, 138, 91, .20), transparent 72%),
    radial-gradient(60% 420px at 92% 40px, rgba(99, 224, 165, .07), transparent 74%),
    linear-gradient(rgba(110, 130, 150, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110, 130, 150, .10) 1px, transparent 1px),
    linear-gradient(rgba(110, 130, 150, .042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110, 130, 150, .042) 1px, transparent 1px);
  background-size: 100% 560px, 100% 460px, 64px 64px, 64px 64px, 8px 8px, 8px 8px;
  background-repeat: no-repeat, no-repeat, repeat, repeat, repeat, repeat;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .01em;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--green-300);
  outline-offset: 3px;
  border-radius: 2px;
}

[id] { scroll-margin-top: 108px; }

::selection {
  background: rgba(99, 224, 165, .28);
  color: #FFFFFF;
}

/* ---------- 4. 无障碍工具 ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: 10px;
  z-index: 300;
  transform: translate(-50%, -220%);
  padding: 10px 20px;
  border-radius: 2px;
  background: var(--green-300);
  color: #04140D;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  transition: transform var(--t) var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* ---------- 5. 头壳 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  pointer-events: none;
}

.skip-link,
.season-band,
.header-cap { pointer-events: auto; }

.season-band {
  height: 4px;
  width: 100%;
  background:
    linear-gradient(90deg,
      #0E3B2A 0%,
      #1F8A5B 34%,
      #63E0A5 58%,
      #F2C230 82%,
      #E0452F 100%);
  box-shadow: 0 0 22px -4px rgba(99, 224, 165, .55);
}

.header-cap {
  padding: 10px var(--gutter) 0;
}

.header-capsule {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  max-width: var(--capsule-max);
  min-height: 64px;
  margin: 0 auto;
  padding: 8px 8px 8px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(18, 40, 61, .94), rgba(10, 23, 38, .94));
  box-shadow:
    0 20px 44px -26px rgba(0, 0, 0, .92),
    inset 0 1px 0 rgba(185, 198, 210, .07);
  transition: min-height var(--t) var(--ease), padding var(--t) var(--ease), border-color var(--t) var(--ease);
}

.site-header[data-scrolled] .header-capsule {
  min-height: 52px;
  padding-top: 4px;
  padding-bottom: 4px;
  border-color: var(--line-strong);
}

/* ---------- 6. 品牌 ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--ink);
}

.brand__mark {
  width: 12px;
  height: 26px;
  flex: 0 0 auto;
  border-radius: 1px;
  background-image:
    repeating-linear-gradient(135deg, rgba(99, 224, 165, .85) 0 2px, transparent 2px 5px),
    linear-gradient(180deg, var(--green-600), var(--green-900));
  box-shadow: 0 0 14px -3px rgba(99, 224, 165, .6);
}

.brand__text { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: .02em;
}

.brand__suffix {
  display: block;
  margin-top: 1px;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: .16em;
  color: var(--slate);
}

/* ---------- 7. 主导航 ---------- */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list__item { display: block; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--silver);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .02em;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.nav-link:hover {
  color: var(--ink);
  background: rgba(99, 224, 165, .09);
}

.nav-link[aria-current="page"] { color: var(--green-300); }

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 1px;
  height: 1px;
  background: var(--green-300);
  box-shadow: 0 0 10px rgba(99, 224, 165, .8);
}

/* ---------- 8. 移动菜单键 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--silver);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  cursor: pointer;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.nav-toggle:hover { color: var(--green-300); border-color: var(--line-green); }

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

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}

.site-header[data-open] .nav-toggle__bars span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- 9. 头部右区 ---------- */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.ghost-link {
  padding: 8px 4px;
  color: var(--silver);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .04em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.ghost-link:hover {
  color: var(--green-300);
  border-bottom-color: var(--green-300);
}

/* ---------- 10. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--t) var(--ease), color var(--t) var(--ease),
              border-color var(--t) var(--ease), box-shadow var(--t) var(--ease),
              transform var(--t) var(--ease);
}

.btn--primary {
  color: #04140D;
  background: linear-gradient(135deg, var(--green-300) 0%, var(--green-600) 78%);
  box-shadow: 0 14px 30px -18px rgba(99, 224, 165, .95);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px -16px rgba(99, 224, 165, 1);
}

.btn--ghost {
  color: var(--silver);
  border-color: var(--line-strong);
  background: transparent;
}

.btn--ghost:hover {
  color: var(--green-300);
  border-color: var(--line-green);
  background: rgba(99, 224, 165, .07);
}

.btn--sm {
  padding: 9px 17px;
  font-size: 13px;
  letter-spacing: .05em;
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 112px);
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(18, 40, 61, .97) 0%, rgba(10, 23, 38, 1) 62%);
  color: var(--silver);
}

.site-footer::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg,
    #E0452F 0%,
    #F2C230 18%,
    #63E0A5 40%,
    #1F8A5B 64%,
    #0E3B2A 100%);
  opacity: .85;
}

.footer-shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px) var(--gutter) 26px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr);
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.footer-brand__mark {
  display: block;
  width: 34px;
  height: 4px;
  margin-bottom: 18px;
  border-radius: 1px;
  background: linear-gradient(90deg, var(--green-300), var(--green-600));
}

.footer-brand__line {
  max-width: 34ch;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.8;
}

.footer-brand__meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--slate);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.footer-col__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--green-300);
}

.footer-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.footer-link {
  font-size: 14px;
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.footer-link:hover {
  color: var(--green-300);
  border-bottom-color: var(--green-300);
}

.footer-contact {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(24px, 3.4vw, 38px) 0;
  border-bottom: 1px solid var(--line);
}

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--slate);
}

.contact-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list__item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.contact-list__key {
  flex: 0 0 44px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--slate);
}

.contact-list__val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .03em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.contact-list__val--text {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .02em;
}

.footer-note {
  margin-top: 16px;
  max-width: 62ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.copy-btn {
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--slate);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  cursor: pointer;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.copy-btn:hover { color: var(--green-300); border-color: var(--line-green); }

.copy-btn[data-copied="true"] {
  color: var(--yellow);
  border-color: rgba(242, 194, 48, .55);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 24px;
  padding-top: 22px;
}

.footer-legal {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
  font-variant-numeric: tabular-nums;
}

/* ---------- 12. 内容容器与章节 ---------- */
.wrap {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.rail {
  position: relative;
  padding-left: var(--rail);
}

.rail::before {
  content: "";
  position: absolute;
  left: calc(var(--rail) / 2);
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg,
    transparent 0%,
    var(--line-strong) 6%,
    var(--line-strong) 94%,
    transparent 100%);
}

.section { padding-block: clamp(44px, 7vw, 96px); }

.eyebrow,
.section__index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--slate);
}

.section__index::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--green-300);
  box-shadow: 0 0 8px rgba(99, 224, 165, .7);
}

.section__title {
  margin: .55em 0 .35em;
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
}

.section__lead {
  max-width: 62ch;
  margin-bottom: 30px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.85;
}

/* ---------- 13. 栅格 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2vw, 24px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

/* ---------- 14. 档案卡 ---------- */
.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--line);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(18, 40, 61, .88), rgba(14, 31, 48, .88));
  box-shadow: 0 26px 50px -38px rgba(0, 0, 0, .95);
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease), transform var(--t) var(--ease);
}

.card:hover {
  border-color: var(--line-green);
  transform: translateY(-2px);
  box-shadow: 0 28px 54px -34px rgba(0, 0, 0, 1),
              inset 0 0 0 1px rgba(99, 224, 165, .12);
}

.card__tab {
  position: absolute;
  top: -1px;
  right: -1px;
  padding: 5px 12px;
  border-radius: 0 2px 0 3px;
  background: linear-gradient(135deg, var(--green-300), var(--green-600));
  color: #04140D;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
}

.card__title {
  margin: 0 0 14px;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.4;
}

.card__rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.data-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.data-row:last-child { border-bottom: 0; }

.data-row__key {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--slate);
}

.data-row__val {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

/* ---------- 15. 指标 ---------- */
.stat { display: block; }

.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--green-300);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
}

/* ---------- 16. 状态标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--silver);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1.6;
}

.tag--green { color: var(--green-300); border-color: var(--line-green); }
.tag--yellow { color: var(--yellow); border-color: rgba(242, 194, 48, .5); }
.tag--red { color: var(--red); border-color: rgba(224, 69, 47, .55); }

/* ---------- 17. 图像容器 ---------- */
.media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  background:
    linear-gradient(140deg, var(--navy-700) 0%, var(--green-900) 100%);
}

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

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) contrast(1.06) brightness(.94);
  transition: transform var(--t-slow) var(--ease);
}

.media:hover .media__img { transform: scale(1.035); }

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 23, 38, .04) 0%, rgba(10, 23, 38, .58) 100%),
    linear-gradient(96deg, rgba(31, 138, 91, .34) 0%, rgba(10, 23, 38, .26) 100%);
}

.media__grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(99, 224, 165, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 224, 165, .16) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: .8;
}

.media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  max-width: 100%;
  padding: 10px 14px;
  border-top: 1px solid var(--line-green);
  border-right: 1px solid var(--line-green);
  background: rgba(10, 23, 38, .74);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

/* ---------- 18. 面包屑 ---------- */
.breadcrumb { font-size: 12px; letter-spacing: .08em; }

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--slate);
  opacity: .6;
}

.breadcrumb__link {
  color: var(--silver);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.breadcrumb__link:hover { color: var(--green-300); }

/* ---------- 19. 分段切换 ---------- */
.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 23, 38, .62);
}

.segmented__tab {
  padding: 9px 20px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--silver);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
}

.segmented__tab:hover { color: var(--ink); background: rgba(99, 224, 165, .1); }

.segmented__tab[aria-selected="true"] {
  color: #04140D;
  background: linear-gradient(135deg, var(--green-300), var(--green-600));
}

.tabpanel { padding-top: clamp(18px, 3vw, 32px); }

/* ---------- 20. 滚动显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 380ms var(--ease), transform 380ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1099px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-actions .ghost-link { display: none; }
  .header-capsule { padding: 8px 8px 8px 16px; gap: 10px; }

  .site-nav { display: none; flex: 0 0 auto; }

  .site-header[data-open] .site-nav {
    display: block;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    max-height: min(70vh, 520px);
    overflow: auto;
    padding: 12px;
    border: 1px solid var(--line-strong);
    border-radius: 2px;
    background: linear-gradient(180deg, rgba(18, 40, 61, .99), rgba(10, 23, 38, .99));
    box-shadow: 0 32px 64px -34px rgba(0, 0, 0, 1);
  }

  .site-header[data-open] .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-header[data-open] .nav-link {
    padding: 13px 14px;
    border-radius: 2px;
    font-size: 15px;
  }

  .site-header[data-open] .nav-link[aria-current="page"] {
    background: rgba(99, 224, 165, .12);
  }

  .site-header[data-open] .nav-link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 8px;
    bottom: 8px;
    width: 2px;
    height: auto;
  }

  .rail { padding-left: 0; }
  .rail::before { display: none; }

  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

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

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

@media (max-width: 860px) {
  .footer-contact { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  body { font-size: 15px; }

  .header-cap { padding-top: 8px; }
  .brand__suffix { display: none; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .footer-nav { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .contact-list__key { flex: 0 0 100%; }
  .btn { width: 100%; }
  .footer-bottom .btn { width: auto; }
  .segmented { width: 100%; border-radius: 2px; }
  .segmented__tab { flex: 1 1 auto; border-radius: 2px; }
}

/* ---------- 22. 动效节制 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .card:hover { transform: none; }
  .media:hover .media__img { transform: none; }
  .btn--primary:hover { transform: none; }
}