/* ===== 乐鱼赛事 共享样式 /assets/site.css ===== */

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

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

body,
h1, h2, h3, h4, p, dl, dd, figure, blockquote { margin: 0; }

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

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

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

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

/* --- 变量 --- */
:root {
  --sea-900: #061424;
  --sea-800: #0B2238;
  --sea-700: #12324F;
  --ink: #05070A;
  --white: #F4F8FB;
  --cyan: #29E6D6;
  --coral: #FF6B4A;
  --signal: #FFD447;
  --grey-400: #7E93A6;
  --grey-700: #243B4F;
  --grad-cyan: linear-gradient(135deg, #29E6D6 0%, rgba(41, 230, 214, 0) 100%);
  --line: 1px solid rgba(41, 230, 214, 0.16);
  --line-soft: 1px solid rgba(126, 147, 166, 0.18);
  --r-xl: 34px;
  --r-lg: 26px;
  --r-md: 18px;
  --r-sm: 12px;
  --r-pill: 999px;
  --wrap: 1200px;
  --gap: 20px;
  --shadow-deep: 0 18px 50px rgba(2, 8, 16, 0.55);
  --shadow-soft: 0 10px 30px rgba(2, 8, 16, 0.35);
  --dur: 0.24s;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
}

/* --- 基础排版 --- */
body {
  min-height: 100vh;
  padding-bottom: 96px;
  background:
    radial-gradient(1100px 680px at 10% -12%, rgba(41, 230, 214, 0.12), transparent 62%),
    radial-gradient(900px 560px at 96% 4%, rgba(255, 107, 74, 0.10), transparent 64%),
    var(--sea-900);
  background-attachment: fixed;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(30px, 6vw, 58px); }
h2 { font-size: clamp(24px, 3.6vw, 38px); }
h3 { font-size: clamp(19px, 2.2vw, 24px); }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

strong { font-weight: 700; color: var(--cyan); }

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

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 8px;
}

.mono, .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.num { font-weight: 700; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --- 跳转链接 --- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 12px 20px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: var(--ink);
  font-weight: 700;
  font-size: 15px;
  box-shadow: var(--shadow-soft);
  transition: top var(--dur) var(--ease);
}

.skip-link:focus-visible,
.skip-link:focus { top: 12px; }

/* --- 页头：悬浮胶囊浮岛 --- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: 12px 14px 0;
}

.head-rail {
  position: relative;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
}

.head-island {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 10px 9px 12px;
  border: var(--line);
  border-radius: var(--r-pill);
  background: rgba(11, 34, 56, 0.74);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-deep);
  transition: padding var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.head-island[data-shrink="true"] {
  padding: 5px 8px 5px 10px;
  background: rgba(6, 20, 36, 0.9);
  border-color: rgba(41, 230, 214, 0.26);
  box-shadow: 0 12px 34px rgba(2, 8, 16, 0.72);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 4px 8px 4px 4px;
  border-radius: var(--r-pill);
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 13px;
  background: linear-gradient(140deg, #29E6D6 0%, #14907F 58%, #12324F 100%);
  box-shadow: inset 0 0 0 1px rgba(244, 248, 251, 0.18), 0 6px 18px rgba(41, 230, 214, 0.24);
  flex: 0 0 auto;
}

.brand-pulse {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(5, 7, 10, 0.28);
  animation: brand-beat 2.6s ease-in-out infinite;
}

@keyframes brand-beat {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.58); opacity: 0.62; }
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16.5px;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-tag {
  display: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--grey-400);
  white-space: nowrap;
}

/* 导航：移动端为下拉面板 */
.nav-capsule {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 12px);
  z-index: 70;
  padding: 10px;
  border: var(--line);
  border-radius: var(--r-lg);
  background: rgba(8, 26, 44, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 26px 60px rgba(2, 8, 16, 0.74);
  max-height: min(68vh, 520px);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s linear;
}

[data-site-head][data-open="true"] .nav-capsule {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item { width: 100%; }

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 16px;
  border-radius: var(--r-md);
  font-size: 15.5px;
  font-weight: 500;
  color: rgba(244, 248, 251, 0.82);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.nav-link::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grey-700);
  flex: 0 0 auto;
  transition: background var(--dur) var(--ease);
}

.nav-link:hover { background: rgba(41, 230, 214, 0.10); color: var(--white); }
.nav-link:hover::after { background: var(--cyan); }

.nav-link[aria-current="page"] {
  background: rgba(41, 230, 214, 0.16);
  color: var(--cyan);
  font-weight: 600;
}

.nav-link[aria-current="page"]::after { background: var(--cyan); box-shadow: 0 0 0 4px rgba(41, 230, 214, 0.18); }

/* 页头操作区 */
.head-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex: 0 0 auto;
}

.head-actions .btn--ghost { display: none; }
.head-actions .btn--coral { display: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: var(--line);
  border-radius: var(--r-pill);
  background: rgba(18, 50, 79, 0.6);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.nav-toggle:hover { background: rgba(41, 230, 214, 0.14); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle-bars::before { top: -5px; }
.nav-toggle-bars::after { top: 5px; }

[data-site-head][data-open="true"] .nav-toggle-bars { background: transparent; }
[data-site-head][data-open="true"] .nav-toggle-bars::before { transform: translateY(5px) rotate(45deg); }
[data-site-head][data-open="true"] .nav-toggle-bars::after { transform: translateY(-5px) rotate(-45deg); }

.nav-toggle-label { font-family: var(--font-mono); letter-spacing: 0.08em; font-size: 12.5px; }

/* 滚动进度轨 */
.head-meter {
  position: relative;
  height: 2px;
  width: min(640px, 68%);
  margin: 9px auto 0;
  border-radius: 2px;
  background: rgba(126, 147, 166, 0.2);
  overflow: hidden;
}

.head-meter-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--coral));
  transition: width 0.12s linear;
}

/* --- 常驻订阅条 --- */
.dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  padding: 10px 12px 12px;
  pointer-events: none;
  transition: transform 0.26s var(--ease), opacity 0.26s var(--ease);
}

.dock[data-hidden="true"] {
  transform: translateY(130%);
  opacity: 0;
}

.dock-inner {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px 8px 8px 18px;
  border: 1px solid rgba(41, 230, 214, 0.22);
  border-radius: var(--r-pill);
  background: rgba(8, 26, 44, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 -10px 40px rgba(2, 8, 16, 0.6);
}

.dock-text {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 14px;
  color: rgba(244, 248, 251, 0.84);
}

.dock-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  flex: 0 0 auto;
  animation: dock-beat 2.2s ease-out infinite;
}

@keyframes dock-beat {
  0% { box-shadow: 0 0 0 0 rgba(41, 230, 214, 0.55); }
  70% { box-shadow: 0 0 0 11px rgba(41, 230, 214, 0); }
  100% { box-shadow: 0 0 0 0 rgba(41, 230, 214, 0); }
}

.dock-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.dock-link {
  font-size: 14px;
  color: var(--grey-400);
  padding: 8px 12px;
  border-radius: var(--r-pill);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.dock-link:hover { color: var(--white); background: rgba(41, 230, 214, 0.12); }

/* --- 按钮与标签 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.18s var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn--coral {
  background: linear-gradient(135deg, #FF6B4A 0%, #FF8F5E 100%);
  color: #24100A;
  box-shadow: 0 10px 26px rgba(255, 107, 74, 0.3);
}

.btn--coral:hover { box-shadow: 0 14px 32px rgba(255, 107, 74, 0.44); }

.btn--cyan {
  background: var(--cyan);
  color: var(--ink);
  box-shadow: 0 10px 24px rgba(41, 230, 214, 0.26);
}

.btn--cyan:hover { background: #4df0e1; }

.btn--ghost {
  border-color: rgba(41, 230, 214, 0.28);
  background: rgba(18, 50, 79, 0.5);
  color: var(--white);
}

.btn--ghost:hover { border-color: var(--cyan); background: rgba(41, 230, 214, 0.14); }

.btn--sm { padding: 9px 16px; font-size: 14px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid rgba(41, 230, 214, 0.28);
  border-radius: var(--r-pill);
  background: rgba(41, 230, 214, 0.08);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.tag--warm {
  border-color: rgba(255, 107, 74, 0.32);
  background: rgba(255, 107, 74, 0.1);
  color: var(--coral);
}

.tag--time {
  border-color: rgba(255, 212, 71, 0.32);
  background: rgba(255, 212, 71, 0.1);
  color: var(--signal);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: var(--line);
  border-radius: var(--r-pill);
  background: rgba(6, 20, 36, 0.6);
  color: var(--white);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.copy-btn:hover { border-color: var(--cyan); background: rgba(41, 230, 214, 0.14); }

.copy-btn[data-copied="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink);
}

/* --- 页脚 --- */
.site-foot {
  position: relative;
  margin-top: 96px;
  padding: 66px 0 26px;
  border-top: var(--line);
  background: linear-gradient(180deg, #0B2238 0%, #061424 58%, #05070A 100%);
  overflow: hidden;
}

.foot-glow {
  position: absolute;
  top: -80px;
  right: -60px;
  width: 520px;
  height: 340px;
  background: radial-gradient(closest-side, rgba(41, 230, 214, 0.2), transparent 72%);
  pointer-events: none;
}

.foot-glow--warm {
  top: auto;
  right: auto;
  bottom: -120px;
  left: -80px;
  background: radial-gradient(closest-side, rgba(255, 107, 74, 0.16), transparent 72%);
}

.foot-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.foot-top {
  display: grid;
  gap: 38px;
}

.foot-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.foot-summary {
  max-width: 34ch;
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.01em;
}

.foot-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.foot-stat {
  min-width: 138px;
  padding: 10px 15px;
  border: var(--line);
  border-radius: var(--r-md);
  background: rgba(18, 50, 79, 0.5);
}

.foot-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.foot-stat-label {
  display: block;
  font-size: 12px;
  color: var(--grey-400);
  letter-spacing: 0.04em;
}

.foot-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px 20px;
}

.foot-col-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--grey-400);
}

.foot-links {
  display: grid;
  gap: 7px;
}

.foot-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 15px;
  color: rgba(244, 248, 251, 0.8);
  transition: color var(--dur) var(--ease), gap var(--dur) var(--ease);
}

.foot-link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grey-700);
  flex: 0 0 auto;
  transition: background var(--dur) var(--ease);
}

.foot-link:hover { color: var(--white); gap: 11px; }
.foot-link:hover::before { background: var(--cyan); }

.foot-link[aria-current="page"] { color: var(--cyan); }
.foot-link[aria-current="page"]::before { background: var(--cyan); }

.foot-contact {
  margin-top: 44px;
  padding: 22px;
  border: var(--line);
  border-radius: var(--r-lg);
  background: rgba(18, 50, 79, 0.42);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.foot-contact-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.foot-contact-title {
  margin: 0;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.foot-contact-list {
  display: grid;
  gap: 12px;
}

.foot-contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 10px;
  border-bottom: var(--line-soft);
}

.foot-contact-key {
  flex: 0 0 62px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--grey-400);
}

.foot-contact-val {
  margin: 0;
  font-size: 15.5px;
  color: var(--white);
  word-break: break-word;
}

.foot-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--grey-400);
}

.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  margin-top: 34px;
  padding-top: 20px;
  border-top: var(--line-soft);
  font-size: 13px;
  color: var(--grey-400);
}

.foot-copy { margin: 0; }
.foot-icp { margin: 0; font-family: var(--font-mono); letter-spacing: 0.04em; }

/* --- 通用容器与章节 --- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 20px;
}

.section { padding: 68px 0; }
.section--tight { padding: 44px 0; }

.section--band {
  background: linear-gradient(180deg, rgba(11, 34, 56, 0.9) 0%, rgba(6, 20, 36, 0) 100%);
  border-block: var(--line-soft);
}

.section-head { margin-bottom: 30px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.section-title { margin: 0 0 14px; }

.lead {
  max-width: 62ch;
  font-size: 17.5px;
  color: rgba(244, 248, 251, 0.82);
}

/* --- 面包屑 --- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--grey-400);
}

.breadcrumbs li { display: flex; align-items: center; gap: 9px; }

.breadcrumbs li + li::before {
  content: "/";
  color: var(--grey-700);
}

.breadcrumbs a { color: var(--grey-400); transition: color var(--dur) var(--ease); }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs [aria-current="page"] { color: var(--white); }

/* --- 卡片与数据块 --- */
.card {
  padding: 22px;
  border: var(--line-soft);
  border-radius: var(--r-lg);
  background: rgba(11, 34, 56, 0.62);
}

.data-card {
  position: relative;
  padding: 22px;
  border: var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(18, 50, 79, 0.86) 0%, rgba(6, 20, 36, 0.9) 100%);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.data-card--glow::after {
  content: "";
  position: absolute;
  top: -60%;
  right: -30%;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(41, 230, 214, 0.24), transparent 72%);
  pointer-events: none;
}

.data-card:hover {
  transform: translateY(-4px);
  border-color: rgba(41, 230, 214, 0.34);
  box-shadow: 0 20px 44px rgba(2, 8, 16, 0.5);
}

.stat {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: var(--line);
  border-radius: var(--r-md);
  background: rgba(6, 20, 36, 0.6);
}

.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  color: var(--cyan);
  line-height: 1.1;
}

.stat-label {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--grey-400);
}

/* --- 网格 --- */
.grid { display: grid; gap: var(--gap); }

.auto-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* --- 图片容器基础规则 --- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(150deg, rgba(18, 50, 79, 0.9) 0%, rgba(6, 20, 36, 0.95) 100%),
    var(--sea-900);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0) 42%, rgba(5, 7, 10, 0.74) 100%);
  pointer-events: none;
}

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

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

.media-cap {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(244, 248, 251, 0.86);
}

/* --- 显现动效 --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

[data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: none;
}

/* --- 响应式 --- */
@media (min-width: 560px) {
  .foot-contact-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-contact-item { border-bottom: 0; padding-bottom: 0; }
}

@media (min-width: 720px) {
  .foot-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
  .foot-bottom { font-size: 13.5px; }
}

@media (min-width: 960px) {
  body { padding-bottom: 84px; font-size: 17px; }

  .site-head { padding: 18px 24px 0; }

  .head-island { gap: 20px; padding: 10px 14px 10px 16px; }

  .brand-tag { display: block; }

  .head-actions .btn--coral { display: inline-flex; }

  .nav-toggle { display: none; }

  .nav-capsule {
    position: static;
    flex: 1 1 auto;
    min-width: 0;
    max-height: none;
    overflow: visible;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 2px;
  }

  .nav-item { width: auto; }

  .nav-link {
    padding: 9px 14px;
    border-radius: var(--r-pill);
    font-size: 15px;
    white-space: nowrap;
  }

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

  .nav-link[aria-current="page"] {
    background: var(--cyan);
    color: var(--ink);
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(41, 230, 214, 0.26);
  }

  .head-meter { margin-top: 11px; }

  .foot-top {
    grid-template-columns: 1.05fr 1.25fr;
    gap: 56px;
    align-items: start;
  }

  .foot-contact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 40px;
    padding: 26px 28px;
  }

  .foot-contact-head { grid-column: 1 / -1; margin-bottom: 6px; }
  .foot-contact-list { grid-column: 1 / 2; }
  .foot-note { grid-column: 2 / 3; margin-top: 4px; align-self: center; }
}

@media (min-width: 1180px) {
  .head-actions .btn--ghost { display: inline-flex; }
  .foot-stats { gap: 12px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 52px 0; }
  .brand-name { font-size: 15.5px; }
  .head-actions { gap: 6px; }
}

@media (max-width: 520px) {
  .dock-inner { justify-content: center; padding: 8px; }
  .dock-text { display: none; }
  .dock-link { display: none; }
}

/* --- 无障碍与动态偏好 --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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