/* ==========================================================================
   安博赛事 · /assets/site.css
   共享外壳：深夜指挥室底 × 蓝图坐标网格 × 电光青 / 安博橙
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --ink-950: #040B14;
  --ink-900: #06101D;
  --ink-800: #0B1E33;
  --ink-700: #10263D;

  --line: #163A55;
  --line-soft: rgba(22, 58, 85, .62);

  --cyan: #29E0C8;
  --cyan-soft: #8AF5E8;
  --cyan-dim: rgba(41, 224, 200, .12);

  --amber: #FF7A2E;
  --amber-soft: #FFB27A;
  --amber-dim: rgba(255, 122, 46, .12);

  --sage: #6F8F83;
  --sage-dim: rgba(111, 143, 131, .16);

  --text-1: #E7F2F7;
  --text-2: #9BB3C2;
  --text-3: #B8C9C1;

  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --fs-display: clamp(56px, 8vw, 132px);
  --fs-h1: clamp(38px, 5.4vw, 76px);
  --fs-h2: clamp(30px, 3.6vw, 52px);
  --fs-h3: clamp(20px, 1.9vw, 26px);
  --fs-body: 17px;
  --fs-small: 14px;
  --fs-mono: 12px;

  --shell: 1280px;
  --read: 760px;
  --gap: 24px;
  --pad: 24px;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  --ease: cubic-bezier(.22, .7, .28, 1);
  --dur: .3s;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.82;
  color: var(--text-1);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(1100px 620px at 84% -10%, rgba(41, 224, 200, .11), transparent 62%),
    radial-gradient(760px 520px at 2% 0%, rgba(255, 122, 46, .075), transparent 64%),
    linear-gradient(to right, rgba(22, 58, 85, .30) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 58, 85, .30) 1px, transparent 1px);
  background-size: auto, auto, 88px 88px, 88px 88px;
  background-repeat: no-repeat, no-repeat, repeat, repeat;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video, canvas { max-width: 100%; height: auto; }
ul, ol { padding-left: 1.2em; }
figure { margin: 0; }
button { font: inherit; color: inherit; }

a {
  color: var(--cyan);
  text-decoration: none;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}
a:hover { color: var(--cyan-soft); text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: rgba(41, 224, 200, .3);
  color: #04140F;
}

/* ---------- 3. 中文排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .6em;
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -.012em;
  color: var(--text-1);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 200; letter-spacing: -.022em; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 500; line-height: 1.3; }
h4 { font-size: 18px; font-weight: 600; line-height: 1.4; }
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
strong { font-weight: 600; color: var(--text-1); }
small { font-size: var(--fs-small); }

.display-xl {
  font-size: var(--fs-display);
  font-weight: 200;
  line-height: .94;
  letter-spacing: -.032em;
  margin: 0 0 .28em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
  flex: none;
}

.lede {
  max-width: var(--read);
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.85;
  color: var(--text-3);
}

.prose { max-width: var(--read); font-size: var(--fs-body); line-height: 1.88; color: var(--text-3); }
.prose p { margin: 0 0 1.35em; }
.prose h2, .prose h3 { color: var(--text-1); margin-top: 1.9em; }

.mono-num {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--cyan-soft);
  line-height: 1;
}

/* ---------- 4. 布局容器与网格 ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.container--read { max-width: calc(var(--read) + var(--pad) * 2); }

.section { padding: clamp(48px, 7vw, 96px) 0; }
.section--tight { padding: clamp(32px, 4.5vw, 64px) 0; }

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

@media (max-width: 900px) {
  :root { --pad: 18px; --gap: 18px; }
  .grid-12 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
  .span-3, .span-4, .span-5 { grid-column: span 8; }
  .span-6, .span-7, .span-8, .span-9 { grid-column: span 8; }
}
@media (max-width: 640px) {
  :root { --pad: 16px; --gap: 16px; }
  .grid-12 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .span-3, .span-4, .span-5, .span-6, .span-7, .span-8, .span-9 { grid-column: span 4; }
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              color var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: linear-gradient(135deg, var(--amber-soft) 0%, var(--amber) 46%, #E85F17 100%);
  color: #1A0A02;
  box-shadow: 0 10px 26px rgba(255, 122, 46, .26);
}
.btn--primary:hover {
  background: linear-gradient(135deg, #FFD0AE 0%, var(--amber-soft) 42%, var(--amber) 100%);
  color: #1A0A02;
  box-shadow: 0 12px 32px rgba(255, 122, 46, .38);
}

.btn--ghost {
  background: rgba(41, 224, 200, .05);
  border-color: rgba(41, 224, 200, .42);
  color: var(--cyan-soft);
}
.btn--ghost:hover {
  background: rgba(41, 224, 200, .13);
  border-color: var(--cyan);
  color: #04211C;
  background: var(--cyan);
}

.btn--quiet {
  background: rgba(11, 30, 51, .8);
  border-color: var(--line);
  color: var(--text-2);
}
.btn--quiet:hover { border-color: rgba(41, 224, 200, .5); color: var(--cyan-soft); }

/* ---------- 6. 胶囊标签 ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--sage-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .1em;
  line-height: 1.6;
  color: var(--text-3);
  white-space: nowrap;
}
.pill--live {
  border-color: rgba(255, 122, 46, .48);
  background: var(--amber-dim);
  color: var(--amber-soft);
}
.pill--data {
  border-color: rgba(41, 224, 200, .42);
  background: var(--cyan-dim);
  color: var(--cyan-soft);
}
.pill--muted {
  border-color: rgba(111, 143, 131, .34);
  background: rgba(111, 143, 131, .1);
  color: var(--text-2);
}
.pill-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
}

/* ---------- 7. 卡片 ---------- */
.card {
  position: relative;
  padding: clamp(20px, 2.4vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(158deg, rgba(11, 30, 51, .96) 0%, rgba(6, 16, 29, .92) 100%);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.card::after {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 10px;
  height: 10px;
  border-top: 1px solid rgba(41, 224, 200, .5);
  border-right: 1px solid rgba(41, 224, 200, .5);
  pointer-events: none;
}
.card:hover {
  border-color: rgba(41, 224, 200, .38);
  box-shadow: 0 18px 46px rgba(2, 8, 16, .55);
}
.card--panel {
  border-radius: var(--radius-xl);
  background:
    radial-gradient(560px 260px at 88% -20%, rgba(41, 224, 200, .13), transparent 66%),
    linear-gradient(158deg, rgba(16, 38, 61, .96) 0%, rgba(6, 16, 29, .94) 100%);
}
.card-index {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--amber);
}
.card-title {
  margin: 0 0 10px;
  font-size: clamp(18px, 1.7vw, 22px);
  font-weight: 500;
  line-height: 1.35;
  color: var(--text-1);
}
.card-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--sage);
}

/* ---------- 8. 媒体容器（页面阶段放图片/SVG 占位） ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(420px 220px at 78% 12%, rgba(41, 224, 200, .16), transparent 68%),
    linear-gradient(160deg, #0B1E33 0%, #06101D 100%);
  isolation: isolate;
}
.media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(rgba(41, 224, 200, .18) 1px, transparent 1px);
  background-size: 14px 14px;
  opacity: .55;
  pointer-events: none;
}
.media img,
.media svg,
.media video {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--21x9 { aspect-ratio: 21 / 9; }
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media-caption {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--sage);
}

/* ---------- 9. 面包屑与分隔线 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-2);
  list-style: none;
  margin: 0;
}
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--cyan); text-decoration: none; }
.breadcrumb-sep { color: var(--line); }
.breadcrumb [aria-current="page"] { color: var(--cyan-soft); }

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, var(--line) 0%, rgba(22, 58, 85, 0) 100%);
}
.tick-rule {
  height: 12px;
  border: 0;
  margin: 0;
  background-image: linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 12px 100%;
  opacity: .8;
}

/* ---------- 10. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 16px;
  z-index: 300;
  padding: 12px 22px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--cyan);
  color: #04140F;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  transform: translateY(-120%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  color: #04140F;
  text-decoration: none;
  outline-offset: -4px;
}

/* ---------- 11. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: linear-gradient(180deg, rgba(6, 16, 29, .97) 0%, rgba(6, 16, 29, .88) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header[data-scrolled] {
  box-shadow: 0 18px 44px rgba(2, 8, 16, .62);
  background: linear-gradient(180deg, rgba(6, 16, 29, .99) 0%, rgba(6, 16, 29, .94) 100%);
}

.header-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.header-top {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 0 13px;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
  color: inherit;
}
.brand:hover { color: inherit; text-decoration: none; }

.brand-mark {
  position: relative;
  width: 38px;
  height: 38px;
  flex: none;
  border: 1px solid rgba(41, 224, 200, .45);
  border-radius: 13px;
  background: radial-gradient(circle at 32% 28%, rgba(41, 224, 200, .30), rgba(11, 30, 51, .95) 72%);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.brand-mark::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 50%;
  border: 1px solid rgba(41, 224, 200, .55);
  border-right-color: var(--amber);
  border-bottom-color: var(--amber);
  transform: rotate(-25deg);
  transition: transform .5s var(--ease);
}
.brand-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border-radius: 50%;
  background: var(--cyan-soft);
  box-shadow: 0 0 12px rgba(41, 224, 200, .9);
}
.brand:hover .brand-mark { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(41, 224, 200, .1); }
.brand:hover .brand-mark::before { transform: rotate(155deg); }

.brand-text { display: flex; flex-direction: column; gap: 2px; }
.brand-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .1em;
  line-height: 1.25;
  color: var(--text-1);
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  line-height: 1.4;
  color: var(--sage);
}

.header-descriptor {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  padding-left: 20px;
  border-left: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 辅助导航 + CTA */
.header-utility {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}
.utility-nav { display: flex; align-items: center; gap: 6px; }
.utility-link {
  padding: 6px 13px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-2);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.utility-link:hover {
  color: var(--cyan-soft);
  border-color: rgba(41, 224, 200, .38);
  background: rgba(41, 224, 200, .07);
  text-decoration: none;
}

.header-cta { padding: 10px 18px; font-size: 12px; }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  flex: none;
  padding: 9px 15px;
  border: 1px solid rgba(41, 224, 200, .42);
  border-radius: var(--radius-pill);
  background: rgba(41, 224, 200, .07);
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-toggle:hover { background: rgba(41, 224, 200, .16); border-color: var(--cyan); }
.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 16px;
  height: 12px;
}
.nav-toggle-bars span {
  display: block;
  height: 1.5px;
  width: 100%;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease);
}
.site-header[data-open] .nav-toggle {
  border-color: var(--amber);
  color: var(--amber-soft);
  background: var(--amber-dim);
}
.site-header[data-open] .nav-toggle-bars span:nth-child(1) { transform: translateY(3.25px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bars span:nth-child(2) { transform: translateY(-3.25px) rotate(-45deg); }

/* 主栏目轨道 */
.primary-nav {
  border-top: 1px solid var(--line-soft);
}
.primary-nav-list {
  display: flex;
  align-items: stretch;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.primary-nav-list li { display: flex; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 13px 17px 14px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--text-2);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 17px;
  right: 17px;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(41, 224, 200, 0) 100%);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .32s var(--ease);
}
.nav-link:hover {
  color: var(--text-1);
  background: rgba(41, 224, 200, .05);
  text-decoration: none;
}
.nav-link:hover::after { transform: scaleX(1); }

.nav-index {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--line);
  transition: color var(--dur) var(--ease);
}
.nav-link:hover .nav-index { color: var(--cyan); }

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

/* ---------- 12. 固定入口 ---------- */
.float-entry {
  position: fixed;
  right: 0;
  bottom: 88px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 11px;
  border: 1px solid rgba(41, 224, 200, .36);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: rgba(11, 30, 51, .94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: -10px 0 30px rgba(2, 8, 16, .55);
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  writing-mode: vertical-rl;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.float-entry:hover {
  background: rgba(41, 224, 200, .16);
  border-color: var(--cyan);
  color: #04211C;
  background: var(--cyan);
  text-decoration: none;
}
.float-entry-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
}
.float-entry-text { display: block; }

/* ---------- 13. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 120px);
  background: linear-gradient(180deg, rgba(6, 16, 29, .9) 0%, rgba(11, 30, 51, .96) 100%);
  border-top: 1px solid var(--line);
  color: var(--text-2);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg,
    var(--cyan) 0%,
    rgba(41, 224, 200, 0) 38%,
    rgba(255, 122, 46, 0) 62%,
    var(--amber) 100%);
  opacity: .85;
}

.footer-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1.15fr) minmax(0, .95fr);
  gap: clamp(28px, 4vw, 64px);
  padding: clamp(46px, 6vw, 84px) 0 clamp(32px, 4vw, 56px);
}

.footer-wordmark {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 300;
  letter-spacing: .14em;
  line-height: 1.2;
  color: var(--text-1);
}
.footer-statement {
  max-width: 42ch;
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-2);
}
.footer-sign {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.footer-heading {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
  line-height: 1.6;
}

.footer-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}
.footer-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--text-2);
  transition: color var(--dur) var(--ease);
}
.footer-list a::before {
  content: "";
  flex: none;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width .26s var(--ease);
}
.footer-list a:hover { color: var(--cyan-soft); text-decoration: none; }
.footer-list a:hover::before { width: 14px; }

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

.copy-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  margin: 0 0 10px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(6, 16, 29, .8);
  color: var(--text-1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.copy-chip:hover { border-color: rgba(41, 224, 200, .5); background: rgba(41, 224, 200, .08); }
.copy-chip-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.copy-chip-hint {
  flex: none;
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--cyan);
}
.copy-chip[data-copied] { border-color: var(--amber); background: var(--amber-dim); }
.copy-chip[data-copied] .copy-chip-hint { color: var(--amber-soft); }

.footer-address {
  margin: 16px 0 6px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-2);
}
.footer-hours {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--sage);
}
.footer-note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  line-height: 1.8;
  color: var(--sage);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 20px 0 clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--sage);
}
.footer-copy { margin: 0; }
.footer-icp { margin: 0; }

/* ---------- 14. 滚动显现协议 ---------- */
.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition: opacity .62s var(--ease), transform .62s var(--ease);
  will-change: opacity, transform;
}
.reveal-ready [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 15. 响应式：头部与页脚 ---------- */
@media (max-width: 1080px) {
  .header-descriptor { display: none; }
}

@media (max-width: 900px) {
  .header-top { gap: 12px; padding: 12px 0; }
  .utility-nav { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .brand-sub { display: none; }
  .header-cta { padding: 9px 14px; font-size: 11px; letter-spacing: .04em; }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: linear-gradient(180deg, rgba(11, 30, 51, .99) 0%, rgba(6, 16, 29, .99) 100%);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    transition: max-height .36s var(--ease), visibility .36s var(--ease);
  }
  .site-header[data-open] .primary-nav {
    max-height: 78vh;
    overflow-y: auto;
    visibility: visible;
    box-shadow: 0 28px 56px rgba(2, 8, 16, .7);
  }
  .primary-nav-list {
    flex-direction: column;
    gap: 0;
    padding: 8px var(--pad) 18px;
  }
  .nav-link {
    display: flex;
    justify-content: space-between;
    padding: 13px 4px;
    font-size: 15px;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-link::after { left: 4px; right: 4px; }
  .nav-index { font-size: 11px; }

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

@media (max-width: 640px) {
  .brand-mark { width: 32px; height: 32px; border-radius: 11px; }
  .brand-name { font-size: 15px; letter-spacing: .08em; }
  .nav-toggle-label { display: none; }

  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .footer-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-wordmark { font-size: 22px; }
  .footer-legal { flex-direction: column; align-items: flex-start; }

  .float-entry { bottom: 24px; padding: 13px 9px; font-size: 10px; letter-spacing: .14em; }
}

/* ---------- 16. 动效降级 ---------- */
@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-ready [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .brand:hover .brand-mark::before { transform: rotate(-25deg); }
  .nav-link::after { transform: scaleX(1); opacity: .35; }
  .nav-link[aria-current="page"]::after { opacity: 1; }
}