/* ============================================================
   乐鱼主站 — 共享样式表 /assets/site.css
   深海蓝 · 荧光青 · 珊瑚橙 · 暖纸白
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

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

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
}

button { cursor: pointer; }

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

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

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩 */
  --ly-deep: #0A1F3C;
  --ly-ink: #071427;
  --ly-paper: #F4F1EA;
  --ly-cyan: #21E6C1;
  --ly-coral: #FF6B4A;
  --ly-blue: #2E7DFF;
  --ly-steel: #7C8CA1;
  --ly-mist: #CFF7F0;
  --ly-amber: #FFB347;

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

  /* 字号阶梯 1.25 */
  --ly-fs-12: 12px;
  --ly-fs-15: 15px;
  --ly-fs-17: 17px;
  --ly-fs-21: 21px;
  --ly-fs-28: 28px;
  --ly-fs-36: 36px;
  --ly-fs-52: clamp(36px, 5vw, 52px);
  --ly-fs-76: clamp(52px, 8vw, 76px);
  --ly-fs-96: clamp(52px, 11vw, 96px);

  /* 形状与节奏 */
  --ly-radius-card: 18px;
  --ly-radius-pill: 999px;
  --ly-space-section: 96px;
  --ly-gap: 32px;
  --ly-shell: 1280px;
  --ly-header-h: 76px;
}

/* ---------- 3. 基底与中文排版 ---------- */
body {
  position: relative;
  min-height: 100vh;
  background-color: var(--ly-deep);
  color: var(--ly-paper);
  font-family: var(--ly-font-body);
  font-size: var(--ly-fs-17);
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 夜间转播噪点 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(244, 241, 234, 0.035) 1px, transparent 1px),
    radial-gradient(rgba(33, 230, 193, 0.028) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 2px 3px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--ly-font-display);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--ly-paper);
}

p { max-width: 68ch; }

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

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

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

/* ---------- 4. 通用容器与栅格 ---------- */
.ly-container {
  width: min(100% - 40px, var(--ly-shell));
  margin-inline: auto;
}

.ly-section {
  padding-block: var(--ly-space-section);
}

.ly-section--tight { padding-block: 48px; }

.ly-section--paper {
  background: var(--ly-paper);
  color: var(--ly-ink);
  border-radius: 28px;
}

.ly-section--paper h1,
.ly-section--paper h2,
.ly-section--paper h3 { color: var(--ly-ink); }

.ly-section--paper .ly-aside-note { color: #4E6076; }

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

.ly-grid--main-aside { gap: 48px; }

.ly-col-main { grid-column: span 7; }

.ly-col-aside { grid-column: span 3; }

.ly-col-wide { grid-column: span 12; }

/* ---------- 5. 文字组件 ---------- */
.ly-display {
  font-family: var(--ly-font-display);
  font-size: var(--ly-fs-96);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.ly-h1 { font-size: var(--ly-fs-76); font-weight: 900; line-height: 1.06; letter-spacing: -0.03em; }
.ly-h2 { font-size: var(--ly-fs-52); font-weight: 800; }
.ly-h3 { font-size: var(--ly-fs-28); font-weight: 800; }

.ly-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ly-cyan);
  text-transform: uppercase;
}

.ly-lead {
  font-size: var(--ly-fs-21);
  line-height: 1.7;
  color: rgba(244, 241, 234, 0.86);
  max-width: 52ch;
}

.ly-prose {
  max-width: 68ch;
  font-size: var(--ly-fs-17);
  line-height: 1.85;
}

.ly-prose p + p { margin-top: 24px; }

.ly-prose h2 { margin-top: 48px; margin-bottom: 16px; font-size: var(--ly-fs-36); }
.ly-prose h3 { margin-top: 36px; margin-bottom: 12px; font-size: var(--ly-fs-21); }
.ly-prose ul { margin-top: 16px; padding-left: 0; }
.ly-prose li {
  position: relative;
  padding-left: 20px;
  margin-top: 10px;
  font-size: var(--ly-fs-15);
  color: rgba(244, 241, 234, 0.8);
}
.ly-prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 8px;
  height: 1px;
  background: var(--ly-cyan);
}

.ly-aside-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ly-steel);
  max-width: 34ch;
}

.ly-num {
  font-family: var(--ly-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  font-feature-settings: "tnum" 1;
}

.ly-list { display: flex; flex-direction: column; gap: 10px; }

.ly-divider {
  height: 1px;
  border: 0;
  margin: 0;
  background: rgba(244, 241, 234, 0.12);
}

.ly-divider--cyan { background: rgba(33, 230, 193, 0.35); }

.ly-link {
  color: var(--ly-blue);
  border-bottom: 1px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}

.ly-link:visited { color: var(--ly-steel); }

.ly-link:hover {
  color: var(--ly-cyan);
  border-bottom-color: var(--ly-cyan);
}

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

/* ---------- 6. 按钮 ---------- */
.ly-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--ly-radius-pill);
  border: 1px solid transparent;
  font-family: var(--ly-font-body);
  font-size: var(--ly-fs-15);
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.ly-btn--primary {
  background: var(--ly-cyan);
  color: var(--ly-ink);
  border-color: var(--ly-cyan);
}

.ly-btn--primary:hover {
  background: var(--ly-cyan);
  border-color: var(--ly-coral);
  color: var(--ly-ink);
}

.ly-btn--coral {
  background: var(--ly-coral);
  color: var(--ly-ink);
  border-color: var(--ly-coral);
}

.ly-btn--coral:hover {
  border-color: var(--ly-cyan);
}

.ly-btn--quiet {
  background: transparent;
  color: var(--ly-paper);
  border-color: rgba(244, 241, 234, 0.26);
}

.ly-btn--quiet:hover {
  color: var(--ly-cyan);
  border-color: var(--ly-cyan);
}

/* ---------- 7. 标签 ---------- */
.ly-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--ly-radius-pill);
  border: 1px solid rgba(33, 230, 193, 0.45);
  background: rgba(33, 230, 193, 0.08);
  color: var(--ly-cyan);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
}

.ly-tag--coral {
  border-color: rgba(255, 107, 74, 0.5);
  background: rgba(255, 107, 74, 0.1);
  color: var(--ly-coral);
}

.ly-tag--amber {
  border-color: rgba(255, 179, 71, 0.5);
  background: rgba(255, 179, 71, 0.1);
  color: var(--ly-amber);
}

.ly-tag--mist {
  border-color: transparent;
  background: var(--ly-mist);
  color: var(--ly-ink);
}

/* ---------- 8. 卡片 ---------- */
.ly-card {
  position: relative;
  display: block;
  padding: 24px;
  border-radius: var(--ly-radius-card);
  border: 1px solid rgba(33, 230, 193, 0.24);
  background: rgba(7, 20, 39, 0.62);
  transition: transform 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.ly-card:hover,
.ly-card:focus-within {
  transform: translateY(-6px);
  border-color: var(--ly-cyan);
  background: rgba(7, 20, 39, 0.88);
}

.ly-card--coral { border-color: rgba(255, 107, 74, 0.34); }
.ly-card--coral:hover { border-color: var(--ly-coral); }

.ly-card--tilt { transform: rotate(-2deg); }
.ly-card--tilt:hover { transform: rotate(-2deg) translateY(-6px); }

.ly-card--tilt-r { transform: rotate(2deg); }
.ly-card--tilt-r:hover { transform: rotate(2deg) translateY(-6px); }

.ly-card__kicker {
  font-size: var(--ly-fs-12);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ly-steel);
}

.ly-card__title {
  margin-top: 8px;
  font-family: var(--ly-font-display);
  font-size: var(--ly-fs-21);
  font-weight: 800;
  line-height: 1.3;
}

.ly-card__meta {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ly-steel);
}

.ly-card__body {
  margin-top: 12px;
  font-size: var(--ly-fs-15);
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.78);
}

/* ---------- 9. 图片容器（供页面阶段使用） ---------- */
.ly-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--ly-radius-card);
  border: 1px solid rgba(33, 230, 193, 0.2);
  background-color: rgba(46, 125, 255, 0.1);
  background-image:
    repeating-linear-gradient(115deg, rgba(33, 230, 193, 0.07) 0 1px, transparent 1px 14px),
    linear-gradient(150deg, rgba(46, 125, 255, 0.22), rgba(10, 31, 60, 0.1) 55%, rgba(255, 107, 74, 0.14));
}

.ly-media > img,
.ly-media > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.ly-media__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ly-steel);
}

/* ---------- 10. 面包屑 ---------- */
.ly-breadcrumb { padding-top: 28px; }

.ly-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ly-steel);
}

.ly-breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }

.ly-breadcrumb__item[aria-current="page"] { color: var(--ly-paper); }

.ly-breadcrumb__link {
  color: var(--ly-blue);
  transition: color 120ms ease;
}

.ly-breadcrumb__link:visited { color: var(--ly-steel); }

.ly-breadcrumb__link:hover { color: var(--ly-cyan); text-decoration: underline; }

.ly-breadcrumb__sep { color: rgba(124, 140, 161, 0.6); }

/* ============================================================
   11. 页头：三枚浮岛 + 信号条
   ============================================================ */
.ly-skip {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
  padding: 10px 22px;
  border-radius: 0 0 14px 14px;
  background: var(--ly-cyan);
  color: var(--ly-ink);
  font-size: var(--ly-fs-15);
  font-weight: 700;
  transition: top 120ms ease;
}

.ly-skip:focus { top: 0; }

.ly-header {
  position: sticky;
  top: 0;
  z-index: 60;
  padding-block: 16px;
  transition: padding 200ms ease;
}

.ly-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg,
      rgba(7, 20, 39, 0.94) 0%,
      rgba(7, 20, 39, 0.86) 58%,
      rgba(7, 20, 39, 0) 100%);
  opacity: 0.7;
  transition: opacity 200ms ease, background-color 200ms ease;
}

.ly-header[data-scrolled] {
  padding-block: 8px;
}

.ly-header[data-scrolled]::before {
  opacity: 1;
  background: linear-gradient(180deg,
      rgba(7, 20, 39, 0.99) 0%,
      rgba(7, 20, 39, 0.96) 70%,
      rgba(7, 20, 39, 0.8) 100%);
}

.ly-header__inner {
  position: relative;
  width: min(100% - 32px, 1340px);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 品牌浮岛 */
.ly-brand {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 20px;
  border-radius: var(--ly-radius-pill);
  border: 1px solid rgba(33, 230, 193, 0.28);
  background: rgba(10, 31, 60, 0.9);
  transition: border-color 120ms ease, background-color 120ms ease;
}

.ly-brand:hover {
  border-color: var(--ly-cyan);
  background: rgba(7, 20, 39, 0.98);
}

.ly-brand__mark {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--ly-font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--ly-paper);
  white-space: nowrap;
}

.ly-brand__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ly-cyan);
  box-shadow: 0 0 12px rgba(33, 230, 193, 0.9);
}

.ly-brand__tagline {
  font-size: var(--ly-fs-12);
  line-height: 1.2;
  letter-spacing: 0.12em;
  color: var(--ly-steel);
  white-space: nowrap;
}

/* 栏目浮岛 */
.ly-nav {
  flex: 0 1 auto;
  margin-inline: auto;
  padding: 6px;
  border-radius: var(--ly-radius-pill);
  border: 1px solid rgba(244, 241, 234, 0.12);
  background: rgba(7, 20, 39, 0.86);
  transition: border-color 200ms ease, background-color 200ms ease;
}

.ly-header[data-scrolled] .ly-nav {
  border-color: rgba(33, 230, 193, 0.32);
}

.ly-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.ly-nav__item { display: flex; }

.ly-nav__link {
  position: relative;
  display: block;
  padding: 9px 15px;
  border-radius: var(--ly-radius-pill);
  font-size: var(--ly-fs-15);
  font-weight: 500;
  line-height: 1.4;
  color: rgba(244, 241, 234, 0.78);
  white-space: nowrap;
  transition: color 120ms ease, background-color 120ms ease;
}

.ly-nav__link:hover {
  color: var(--ly-cyan);
  background: rgba(33, 230, 193, 0.08);
}

.ly-nav__link[aria-current="page"] {
  color: var(--ly-cyan);
  font-weight: 700;
}

.ly-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--ly-cyan);
  box-shadow: 0 0 10px rgba(33, 230, 193, 0.75);
}

/* 动作浮岛 */
.ly-header__actions {
  flex: 0 0 auto;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ly-header__cta { padding: 11px 20px; }

.ly-cta-short { display: none; }

.ly-nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border-radius: var(--ly-radius-pill);
  border: 1px solid rgba(244, 241, 234, 0.2);
  background: rgba(10, 31, 60, 0.9);
  color: var(--ly-paper);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  transition: color 120ms ease, border-color 120ms ease;
}

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

.ly-nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.ly-nav-toggle__bars::before,
.ly-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 120ms ease, top 120ms ease, opacity 120ms ease;
}

.ly-nav-toggle__bars::before { top: -5px; }
.ly-nav-toggle__bars::after { top: 5px; }

.ly-nav-toggle[aria-expanded="true"] {
  border-color: var(--ly-cyan);
  color: var(--ly-cyan);
}

.ly-nav-toggle[aria-expanded="true"] .ly-nav-toggle__bars { background: transparent; }
.ly-nav-toggle[aria-expanded="true"] .ly-nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.ly-nav-toggle[aria-expanded="true"] .ly-nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* 阅读信号条 */
.ly-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(244, 241, 234, 0.08);
  pointer-events: none;
}

.ly-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--ly-cyan), var(--ly-blue) 62%, var(--ly-coral));
  transition: transform 80ms linear;
}

/* 回到顶部 */
.ly-totop {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 70;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(33, 230, 193, 0.42);
  background: rgba(7, 20, 39, 0.94);
  color: var(--ly-cyan);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 200ms ease, transform 200ms ease, visibility 200ms ease, color 120ms ease, border-color 120ms ease;
}

.ly-totop[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.ly-totop:hover { color: var(--ly-coral); border-color: var(--ly-coral); }

.ly-totop__icon { display: block; }

/* ============================================================
   12. 页脚：午夜墨四级下压
   ============================================================ */
.ly-footer {
  position: relative;
  overflow: hidden;
  margin-top: var(--ly-space-section);
  padding-block: 72px 32px;
  background: var(--ly-ink);
  border-top: 1px solid rgba(33, 230, 193, 0.3);
}

.ly-footer::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -140px;
  width: 460px;
  height: 460px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 107, 74, 0.2) 0%, rgba(255, 107, 74, 0) 70%);
}

.ly-footer::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--ly-cyan), rgba(33, 230, 193, 0));
}

.ly-footer__inner {
  position: relative;
  z-index: 1;
}

.ly-footer__grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 40px 32px;
}

.ly-footer__intro { min-width: 0; }

.ly-footer__brand {
  display: inline-block;
  font-family: var(--ly-font-display);
  font-size: var(--ly-fs-28);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ly-paper);
  transition: color 120ms ease;
}

.ly-footer__brand:hover { color: var(--ly-cyan); }

.ly-footer__tagline {
  margin-top: 6px;
  font-size: var(--ly-fs-15);
  letter-spacing: 0.1em;
  color: var(--ly-cyan);
}

.ly-footer__note {
  margin-top: 16px;
  max-width: 32ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ly-steel);
}

.ly-footer__col { min-width: 0; }

.ly-footer__coltitle {
  margin-bottom: 14px;
  font-family: var(--ly-font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--ly-steel);
}

.ly-footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ly-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 0;
  font-size: var(--ly-fs-15);
  line-height: 1.6;
  color: rgba(244, 241, 234, 0.82);
  transition: color 120ms ease, gap 120ms ease;
}

.ly-footer__link::before {
  content: "";
  display: block;
  width: 0;
  height: 1px;
  background: var(--ly-cyan);
  transition: width 120ms ease;
}

.ly-footer__link:hover {
  color: var(--ly-cyan);
  gap: 8px;
}

.ly-footer__link:hover::before { width: 12px; }

.ly-footer__contact {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid rgba(244, 241, 234, 0.1);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px 32px;
}

.ly-footer__contact-item { min-width: 0; }

.ly-footer__contact-label {
  margin-bottom: 4px;
  font-size: var(--ly-fs-12);
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ly-steel);
}

.ly-footer__contact-value {
  font-size: var(--ly-fs-15);
  line-height: 1.6;
  color: var(--ly-paper);
  word-break: break-word;
}

.ly-footer__hours {
  align-self: end;
  max-width: 40ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ly-steel);
}

.ly-footer__bottom {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid rgba(244, 241, 234, 0.1);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  font-size: 13px;
  color: var(--ly-steel);
}

.ly-footer__legal { color: var(--ly-steel); }

.ly-footer__copy { color: var(--ly-steel); }

/* ============================================================
   13. 响应式
   ============================================================ */
@media (max-width: 1180px) {
  .ly-brand__tagline { display: none; }
  .ly-nav__link { padding: 9px 12px; font-size: 14px; }
  .ly-nav__link[aria-current="page"]::after { left: 12px; right: 12px; }
  .ly-header__cta { padding: 10px 16px; font-size: 14px; }
}

@media (max-width: 1024px) {
  .ly-grid--main-aside { gap: 32px; }
  .ly-col-main { grid-column: span 12; }
  .ly-col-aside { grid-column: span 12; }
  .ly-aside-note { max-width: 60ch; }
  .ly-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .ly-footer__intro { grid-column: span 3; }
}

@media (max-width: 980px) {
  .ly-header { padding-block: 12px; }
  .ly-header__inner { gap: 8px; }
  .ly-nav-toggle { display: inline-flex; }
  .ly-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    margin-inline: 0;
    display: none;
    padding: 10px;
    border-radius: 22px;
    border-color: rgba(33, 230, 193, 0.3);
    background: rgba(7, 20, 39, 0.98);
    box-shadow: 0 22px 42px rgba(0, 0, 0, 0.45);
  }
  .ly-nav[data-open] { display: block; }
  .ly-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .ly-nav__item { display: block; }
  .ly-nav__link {
    padding: 13px 16px;
    font-size: var(--ly-fs-17);
    border-radius: 14px;
  }
  .ly-nav__link[aria-current="page"] { background: rgba(33, 230, 193, 0.1); }
  .ly-nav__link[aria-current="page"]::after { left: 16px; right: auto; width: 26px; bottom: 8px; }
  .ly-section { padding-block: 72px; }
  :root { --ly-space-section: 72px; }
}

@media (max-width: 760px) {
  .ly-container { width: min(100% - 28px, var(--ly-shell)); }
  .ly-footer { padding-block: 56px 28px; }
  .ly-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
  .ly-footer__intro { grid-column: span 2; }
  .ly-footer__contact { margin-top: 40px; }
  .ly-grid { gap: 24px; }
  .ly-prose { font-size: var(--ly-fs-17); }
}

@media (max-width: 560px) {
  .ly-brand { padding: 9px 15px; }
  .ly-brand__mark { font-size: 17px; }
  .ly-cta-full { display: none; }
  .ly-cta-short { display: inline; }
  .ly-header__cta { padding: 10px 14px; font-size: 13px; }
  .ly-nav-toggle { padding: 10px 14px; }
  .ly-nav-toggle__text { display: none; }
  .ly-footer__grid { grid-template-columns: 1fr; }
  .ly-footer__intro { grid-column: span 1; }
  .ly-footer__bottom { flex-direction: column; align-items: flex-start; }
  .ly-totop { right: 14px; bottom: 14px; }
  .ly-display { letter-spacing: -0.02em; }
}

/* ---------- 14. 减弱动效 ---------- */
@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;
  }

  .ly-card:hover,
  .ly-card:focus-within,
  .ly-card--tilt,
  .ly-card--tilt:hover,
  .ly-card--tilt-r,
  .ly-card--tilt-r:hover {
    transform: none;
  }

  .ly-totop { transform: none; }
}