/* =========================================================
   1号娱乐会馆 · 共享站点样式 /assets/site.css
   框架式导航 · 展览画册节奏 · 仪表盘配色
   ========================================================= */

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

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--c-void);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a { color: inherit; }

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

h1, h2, h3, h4, h5, h6,
p, figure, blockquote { margin: 0; }

hr { border: 0; }

/* ---------- 2. 设计变量 ---------- */
:root {
  /* 色彩 */
  --c-void: #0A1020;
  --c-night: #111B33;
  --c-panel: #172443;
  --c-orange: #FF7A3D;
  --c-amber: #FFB27A;
  --c-violet: #8A6BFF;
  --c-cyan: #5FD3E8;
  --c-text: #F3F6FF;
  --c-muted: #A9B6CE;
  --c-line: #2C3C60;
  --c-dim: #5A6B92;
  --c-ink: #12182B;

  /* 尺度 */
  --rail-w: 88px;
  --bar-h: 36px;
  --content-w: 1280px;
  --gap: 24px;

  /* 形状 */
  --r-card: 24px;
  --r-panel: 28px;
  --r-pill: 999px;
  --r-media: 20px;
  --slant: -6deg;

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

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 160ms;

  /* 阴影 */
  --shadow-lift: 0 18px 36px -22px rgba(3, 7, 18, .95);
  --shadow-card: 0 10px 26px -20px rgba(3, 7, 18, .9);
}

/* ---------- 3. 字体与焦点 ---------- */
:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 2px;
  border-radius: 6px;
}

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

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

/* ---------- 4. 页面外壳预留 ---------- */
@media (min-width: 900px) {
  body {
    padding-left: var(--rail-w);
    padding-top: var(--bar-h);
  }
}

@media (max-width: 899px) {
  body {
    padding-bottom: 96px;
  }
}

.main-content {
  display: block;
  min-height: 40vh;
}

#main-content:focus { outline: none; }

/* ---------- 5. 跳至主内容 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: var(--c-orange);
  color: var(--c-ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-240%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--c-text);
  outline-offset: 2px;
}

/* ---------- 6. 头部框架 ---------- */
.site-header {
  position: relative;
  z-index: 90;
}

/* 6.1 左缘导航轨 —— 移动端默认折叠 */
.header-rail { display: contents; }

.rail-brand { display: none; }
.rail-note { display: none; }

/* 6.2 导航列表 —— 移动端为底部浮层 */
.site-nav {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 88px;
  z-index: 94;
  max-height: 0;
  padding: 0 10px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  border: 1px solid transparent;
  border-radius: var(--r-panel);
  background: rgba(13, 20, 38, .97);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    max-height 220ms var(--ease),
    padding 220ms var(--ease),
    border-color var(--dur) var(--ease),
    visibility var(--dur);
}

.site-header[data-open] .site-nav {
  max-height: min(62vh, 460px);
  padding: 14px 10px;
  overflow-y: auto;
  opacity: 1;
  visibility: visible;
  transform: none;
  border-color: var(--c-line);
  box-shadow: 0 26px 60px -30px #000;
}

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

.nav-item { width: 100%; }

.nav-item a {
  position: relative;
  display: block;
  padding: 12px 16px 12px 22px;
  border-radius: 14px;
  color: var(--c-muted);
  font-size: 15px;
  letter-spacing: .08em;
  text-decoration: none;
  transition:
    color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.nav-item a:hover {
  color: var(--c-amber);
  background: rgba(255, 178, 122, .08);
}

.nav-item a[aria-current="page"] {
  color: var(--c-text);
  background: rgba(255, 122, 61, .13);
  box-shadow: inset 0 0 0 1px rgba(255, 122, 61, .34);
}

.nav-item a[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 50%;
  width: 3px;
  height: 18px;
  margin-top: -9px;
  border-radius: 2px;
  background: var(--c-orange);
}

/* 6.3 顶部状态条 —— 仅桌面 */
.status-bar { display: none; }

/* 6.4 移动端胶囊条 */
.mobile-bar {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 95;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 60px;
  padding: 0 8px 0 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: rgba(17, 27, 51, .94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 22px 44px -26px #000;
}

.mobile-brand {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: .06em;
  color: var(--c-text);
  text-decoration: none;
  transform: skewX(-2deg);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border-radius: var(--r-pill);
  background: var(--c-orange);
  color: var(--c-ink);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  transition: background-color var(--dur) var(--ease);
}

.nav-toggle:hover { background: var(--c-amber); }

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

.nav-toggle-lines span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease);
}

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

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

.nav-toggle-label { line-height: 1; }

/* 6.5 回到顶部 */
.to-top {
  position: fixed;
  right: 20px;
  bottom: 96px;
  z-index: 96;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  background: rgba(23, 36, 67, .92);
  color: var(--c-amber);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    visibility var(--dur),
    color var(--dur) var(--ease);
}

.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover { color: var(--c-orange); }

.to-top-icon { font-size: 16px; line-height: 1; }

/* 6.6 桌面端框架 */
@media (min-width: 900px) {
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--rail-w);
    height: 100vh;
    z-index: 90;
    pointer-events: none;
  }

  .skip-link,
  .header-rail,
  .status-bar,
  .to-top { pointer-events: auto; }

  .header-rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    height: 100%;
    padding: calc(var(--bar-h) + 22px) 12px 24px;
    border-right: 1px solid var(--c-line);
    background: linear-gradient(180deg, #0C1530 0%, #0A1020 48%, #0B1228 100%);
  }

  .rail-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--c-text);
  }

  .rail-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--c-orange);
    color: var(--c-ink);
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 700;
    line-height: 1;
  }

  .rail-brand-text {
    writing-mode: vertical-rl;
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 14px;
    letter-spacing: .3em;
    transform: skewX(-2deg);
  }

  .site-nav {
    position: static;
    flex: 1 1 auto;
    width: 100%;
    max-height: none;
    padding: 0;
    overflow-y: auto;
    overflow-x: hidden;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar { display: none; }

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

  .nav-item a {
    width: 38px;
    margin-inline: auto;
    padding: 11px 0;
    writing-mode: vertical-rl;
    text-align: center;
    font-size: 12px;
    letter-spacing: .26em;
    border-radius: 14px;
  }

  .nav-item a[aria-current="page"]::before {
    left: 2px;
  }

  .rail-note {
    display: block;
    margin: 0;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .3em;
    color: var(--c-dim);
  }

  .status-bar {
    position: fixed;
    top: 0;
    left: var(--rail-w);
    right: 0;
    z-index: 80;
    display: flex;
    align-items: center;
    gap: 12px;
    height: var(--bar-h);
    padding: 0 22px;
    border-bottom: 1px solid var(--c-line);
    background: rgba(17, 27, 51, .9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .16em;
    color: var(--c-muted);
  }

  .status-dot {
    flex: 0 0 auto;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--c-cyan);
    animation: statusPulse 2.8s var(--ease) infinite;
  }

  .status-text { color: var(--c-text); }
  .status-sep { color: #35456A; }
  .status-edition { color: var(--c-muted); }

  .status-cta {
    margin-left: auto;
    padding: 5px 14px;
    border-radius: var(--r-pill);
    background: var(--c-orange);
    color: var(--c-ink);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-decoration: none;
    transition: background-color var(--dur) var(--ease);
  }

  .status-cta:hover { background: var(--c-amber); }

  .scroll-meter {
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--c-violet), var(--c-orange));
    transform: scaleX(0);
    transform-origin: 0 50%;
    pointer-events: none;
  }

  .mobile-bar { display: none; }

  .to-top {
    right: 28px;
    bottom: 28px;
  }
}

@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(95, 211, 232, .18); }
  50% { box-shadow: 0 0 0 7px rgba(95, 211, 232, .05); }
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: 96px;
  border-top: 1px solid var(--c-line);
  background: linear-gradient(180deg, #101B36 0%, #0A1020 100%);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -110px;
  left: -12%;
  right: -12%;
  height: 220px;
  background: linear-gradient(90deg, rgba(138, 107, 255, .38), rgba(255, 122, 61, .26));
  transform: rotate(var(--slant));
  filter: blur(58px);
  opacity: .55;
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-w);
  margin-inline: auto;
  padding: 76px 24px 44px;
  display: grid;
  grid-template-columns: 1.5fr .9fr .9fr 1.35fr;
  gap: 44px 36px;
}

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

.footer-mark {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--c-text);
  text-decoration: none;
  transform: skewX(-2deg);
  transform-origin: left center;
}

.footer-tagline {
  margin-top: 18px;
  max-width: 22em;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.8;
}

.footer-edition {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-dim);
}

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

.footer-col-title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--c-amber);
}

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

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 0;
  color: var(--c-muted);
  font-size: 14px;
  text-decoration: none;
  transition:
    color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.footer-link::before {
  content: "";
  flex: 0 0 auto;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--c-line);
  transition: background-color var(--dur) var(--ease);
}

.footer-link:hover {
  color: var(--c-text);
  transform: translateX(3px);
}

.footer-link:hover::before { background: var(--c-orange); }

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

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  color: var(--c-muted);
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-dim);
}

.footer-contact-value {
  line-height: 1.7;
  word-break: break-word;
}

.copy-btn {
  display: inline-block;
  padding: 1px 0;
  border-bottom: 1px dashed rgba(255, 178, 122, .45);
  color: var(--c-amber);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  line-height: 1.6;
  text-align: left;
  word-break: break-all;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.copy-btn:hover {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

.copy-btn[data-copied] {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.footer-copy-status {
  min-height: 1.5em;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.footer-base {
  position: relative;
  z-index: 1;
  max-width: var(--content-w);
  margin-inline: auto;
  padding: 22px 24px 40px;
  border-top: 1px solid var(--c-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-dim);
}

.footer-legal { margin: 0; color: var(--c-muted); }

.footer-note {
  margin: 0;
  max-width: 62ch;
  line-height: 1.75;
  color: #66779F;
  letter-spacing: .04em;
}

@media (max-width: 1080px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .footer-inner {
    grid-template-columns: 1fr;
    padding: 56px 20px 32px;
    gap: 34px;
  }

  .footer-base {
    padding: 20px 20px 34px;
    gap: 8px;
  }
}

/* ---------- 8. 版心与网格 ---------- */
.container {
  width: 100%;
  max-width: var(--content-w);
  margin-inline: auto;
  padding-inline: 24px;
}

@media (max-width: 640px) {
  .container { padding-inline: 20px; }
}

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

.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)); }

@media (max-width: 900px) {
  .grid-3,
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 9. 排版原子 ---------- */
.display-title {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 8vw, 128px);
  line-height: .95;
  letter-spacing: -.02em;
  color: var(--c-text);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4vw, 64px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--c-text);
}

.eyebrow {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .22em;
  color: var(--c-amber);
}

.lede {
  max-width: 42em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--c-muted);
}

.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}

.slant-rule {
  width: calc(100% - 140px);
  height: 1px;
  margin: 64px auto;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--c-line) 18%,
    var(--c-violet) 50%,
    var(--c-line) 82%,
    transparent 100%
  );
  transform: rotate(var(--slant));
  transform-origin: center;
}

/* ---------- 10. 组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.4;
  text-decoration: none;
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.btn--primary {
  background: var(--c-orange);
  color: var(--c-ink);
}

.btn--primary:hover {
  background: var(--c-amber);
  transform: translateY(-4px);
  box-shadow: 0 16px 30px -20px rgba(255, 122, 61, .9);
}

.btn--ghost {
  border-color: var(--c-line);
  background: rgba(23, 36, 67, .55);
  color: var(--c-text);
}

.btn--ghost:hover {
  border-color: var(--c-amber);
  color: var(--c-amber);
  transform: translateY(-4px);
}

.card {
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  padding: 28px;
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: #3A4E78;
}

.panel {
  border: 1px solid var(--c-line);
  border-radius: var(--r-panel);
  padding: 32px;
  background: linear-gradient(160deg, rgba(23, 36, 67, .96), rgba(17, 27, 51, .9));
  box-shadow: var(--shadow-card);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: rgba(23, 36, 67, .6);
  color: var(--c-muted);
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: .02em;
  transition:
    background-color 120ms linear,
    color 120ms linear,
    border-color 120ms linear;
}

button.chip { cursor: pointer; }

.chip:hover {
  color: var(--c-text);
  border-color: var(--c-amber);
}

.chip[aria-pressed="true"],
.chip.is-active {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-ink);
  font-weight: 700;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 8px;
  background: rgba(138, 107, 255, .18);
  color: #C9BCFF;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  line-height: 1.5;
}

/* ---------- 11. 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-muted);
}

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

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

.breadcrumb li + li::before {
  content: "/";
  color: #35456A;
}

.breadcrumb a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

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

.breadcrumb [aria-current="page"] { color: var(--c-text); }

/* ---------- 12. 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--r-media);
  background-color: #14203C;
  background-image: linear-gradient(
    135deg,
    rgba(138, 107, 255, .24) 0%,
    rgba(95, 211, 232, .07) 52%,
    rgba(255, 122, 61, .2) 100%
  );
  isolation: isolate;
}

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

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(44, 60, 96, .3) 0 1px,
    transparent 1px 56px
  );
  opacity: .45;
  pointer-events: none;
}

.media--video { aspect-ratio: 16 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }

.media--slant {
  border-radius: 0;
  clip-path: polygon(0 5.5%, 100% 0, 100% 100%, 0 100%);
}

.media__label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(243, 246, 255, .82);
}

/* ---------- 13. 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;
    transition-delay: 0ms !important;
  }

  .card:hover,
  .btn--primary:hover,
  .btn--ghost:hover,
  .footer-link:hover {
    transform: none !important;
  }

  .to-top {
    transform: none;
  }
}