/* ==========================================================================
   电竞世界主站 — 共享样式表 /assets/site.css
   夜场数据竞技场：冷色底 + 霓虹青脉冲 + 草皮绿看台 + 票根米纸感
   ========================================================================== */

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

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--ld-mist);
  color: var(--ld-ink);
  font-family: var(--ld-font-cn);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, pre { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; }

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

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

/* ---------- 2. 设计令牌 ---------- */
:root {
  --ld-cyan: #22F0C8;
  --ld-grass: #1E7A4F;
  --ld-grass-deep: #0E4A31;
  --ld-orange: #FF5A2B;
  --ld-purple: #4A2E8F;
  --ld-slate: #2B3E4F;
  --ld-mist: #E9EEF3;
  --ld-ticket: #F3E7D3;
  --ld-ink: #0B1116;
  --ld-gray: #7C93A6;
  --ld-amber: #FFC24A;

  --ld-cyan-ink: #0F8F78;

  --ld-font-cn: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ld-font-mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
  --ld-font-en: "Inter", "Helvetica Neue", Arial, sans-serif;

  --ld-radius: 14px;
  --ld-radius-sm: 10px;
  --ld-shadow-hard: 8px 8px 0 var(--ld-ink);
  --ld-shadow-acid: 8px 8px 0 var(--ld-cyan);
  --ld-line: 1px solid rgba(124, 147, 166, 0.42);
  --ld-ease: cubic-bezier(0.22, 0.8, 0.28, 1);
  --ld-header-h: 78px;
}

/* ---------- 3. 排版工具 ---------- */
.ld-mono {
  font-family: var(--ld-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.ld-latin {
  font-family: var(--ld-font-en);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.ld-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--ld-font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ld-grass);
}

.ld-kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
  flex: 0 0 auto;
}

.ld-kicker--cyan { color: var(--ld-cyan-ink); }
.ld-kicker--orange { color: var(--ld-orange); }
.ld-kicker--purple { color: var(--ld-purple); }

.ld-bignum {
  font-family: var(--ld-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(80px, 18vw, 220px);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 2px var(--ld-cyan);
  text-stroke: 2px var(--ld-cyan);
}

.ld-bignum--fill {
  -webkit-text-stroke: 0;
  text-stroke: 0;
  color: rgba(34, 240, 200, 0.16);
}

/* ---------- 4. 布局容器与网格 ---------- */
.ld-wrap {
  width: min(1240px, 100% - 2.5rem);
  margin-inline: auto;
}

.ld-wrap--narrow { width: min(780px, 100% - 2.5rem); }
.ld-wrap--wide { width: min(1480px, 100% - 2rem); }

.ld-section { padding-block: clamp(48px, 7vw, 96px); }

.ld-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.2vw, 28px);
}

.ld-grid--tight { gap: clamp(10px, 1.4vw, 18px); }

.ld-prose {
  max-width: 66ch;
  font-size: 17px;
  line-height: 1.85;
}

.ld-prose > * + * { margin-top: 1.05em; }
.ld-prose h2 { font-size: 34px; font-weight: 400; letter-spacing: 0.06em; line-height: 1.35; }
.ld-prose h3 { font-size: 22px; font-weight: 500; letter-spacing: 0.05em; }
.ld-prose strong { font-weight: 600; }
.ld-prose a { color: var(--ld-grass); text-decoration: underline; text-underline-offset: 3px; }

.ld-rule {
  height: 2px;
  border: 0;
  margin: 0;
  background: var(--ld-grass);
}

.ld-rule--cyan { background: var(--ld-cyan); }
.ld-rule--dashed { background: none; border-top: 2px dashed rgba(124, 147, 166, 0.6); height: 0; }

.ld-dark {
  background: var(--ld-slate);
  color: var(--ld-mist);
}
.ld-dark a { color: var(--ld-cyan); }

/* ---------- 5. 面包屑 ---------- */
.ld-crumbs {
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ld-gray);
  padding-block: 14px;
}

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

.ld-crumbs li { display: inline-flex; align-items: center; gap: 8px; }
.ld-crumbs li + li::before { content: "/"; color: var(--ld-gray); }
.ld-crumbs a { text-decoration: none; border-bottom: 1px solid currentColor; }
.ld-crumbs a:hover { color: var(--ld-grass); }
.ld-crumbs [aria-current="page"] { color: var(--ld-ink); }

/* ---------- 6. 按钮与胶囊 ---------- */
.ld-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 24px;
  border: 2px solid var(--ld-ink);
  border-radius: 999px;
  background: var(--ld-mist);
  color: var(--ld-ink);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.22s var(--ld-ease), box-shadow 0.22s var(--ld-ease), background 0.22s var(--ld-ease);
}

.ld-btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ld-ink); }
.ld-btn:active { transform: translate(0, 0); box-shadow: 2px 2px 0 var(--ld-ink); }
.ld-btn--primary { background: var(--ld-cyan); }
.ld-btn--orange { background: var(--ld-orange); }
.ld-btn--purple { background: var(--ld-purple); color: var(--ld-mist); }
.ld-btn--ghost { background: transparent; border-color: currentColor; }
.ld-btn--sm { padding: 9px 16px; font-size: 13px; border-width: 2px; }

.ld-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--ld-grass);
}

.ld-tag--orange { color: var(--ld-orange); }
.ld-tag--purple { color: var(--ld-purple); }
.ld-tag--cyan { color: var(--ld-cyan-ink); }
.ld-tag--amber { color: #8A5A00; }
.ld-tag--solid { background: var(--ld-ink); border-color: var(--ld-ink); color: var(--ld-cyan); }

.ld-dark .ld-tag--cyan,
.ld-dark .ld-tag--purple { color: var(--ld-cyan); }
.ld-dark .ld-tag--amber { color: var(--ld-amber); }

/* ---------- 7. 卡片 ---------- */
.ld-card {
  padding: clamp(18px, 2.4vw, 28px);
  border: 2px solid var(--ld-ink);
  border-radius: var(--ld-radius);
  background: #fff;
  box-shadow: var(--ld-shadow-hard);
}

.ld-card--flat { box-shadow: none; }
.ld-card--dark { background: var(--ld-grass-deep); color: var(--ld-mist); box-shadow: 8px 8px 0 var(--ld-cyan); }
.ld-card--acid { background: var(--ld-mist); border-color: var(--ld-cyan); box-shadow: var(--ld-shadow-acid); }
.ld-card--ticket { background: var(--ld-ticket); box-shadow: 6px 6px 0 var(--ld-ink); }

.ld-card > * + * { margin-top: 0.9em; }

/* ---------- 8. 横向主题带 ---------- */
.ld-band {
  position: relative;
  padding: clamp(18px, 2.6vw, 30px) clamp(20px, 3vw, 40px);
  border-block: 2px solid var(--ld-ink);
  background: var(--ld-grass);
  color: var(--ld-mist);
}

.ld-band--orange { background: var(--ld-orange); color: var(--ld-ink); }
.ld-band--purple { background: var(--ld-purple); color: var(--ld-mist); }
.ld-band--slate { background: var(--ld-slate); color: var(--ld-mist); }
.ld-band--ticket { background: var(--ld-ticket); color: var(--ld-ink); }

.ld-band__index {
  font-family: var(--ld-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.14em;
  opacity: 0.82;
}

/* ---------- 9. 数据条 ---------- */
.ld-bar {
  position: relative;
  height: 12px;
  border: 1px solid var(--ld-ink);
  background: rgba(11, 17, 22, 0.1);
  overflow: hidden;
}

.ld-bar__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--ld-cyan);
  transition: width 0.42s var(--ld-ease);
}

.ld-bar--orange .ld-bar__fill { background: var(--ld-orange); }
.ld-bar--purple .ld-bar__fill { background: var(--ld-purple); }

/* ---------- 10. 表格 ---------- */
.ld-table-scroll {
  overflow-x: auto;
  border: 2px solid var(--ld-ink);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

.ld-table {
  width: 100%;
  min-width: 640px;
  font-size: 13px;
}

.ld-table caption {
  caption-side: top;
  padding: 12px 16px;
  text-align: left;
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ld-gray);
  border-bottom: 1px solid rgba(124, 147, 166, 0.4);
}

.ld-table th,
.ld-table td {
  padding: 10px 16px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid rgba(124, 147, 166, 0.34);
}

.ld-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--ld-grass-deep);
  color: var(--ld-mist);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.ld-table tbody tr:nth-child(even) { background: rgba(233, 238, 243, 0.6); }
.ld-table .ld-num { font-family: var(--ld-font-mono); font-variant-numeric: tabular-nums; }

/* ---------- 11. 图片容器（页面阶段放图） ---------- */
.ld-media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 2px solid var(--ld-ink);
  border-radius: var(--ld-radius);
  background:
    repeating-linear-gradient(135deg, rgba(233, 238, 243, 0.07) 0 10px, transparent 10px 20px),
    linear-gradient(160deg, var(--ld-slate), var(--ld-grass-deep));
}

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

.ld-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.1) 0 1px, transparent 1px 3px),
    radial-gradient(circle at 30% 20%, rgba(34, 240, 200, 0.25), transparent 55%);
  mix-blend-mode: screen;
}

.ld-media--16x9 { aspect-ratio: 16 / 9; }
.ld-media--3x2 { aspect-ratio: 3 / 2; }
.ld-media--4x5 { aspect-ratio: 4 / 5; }
.ld-media--1x1 { aspect-ratio: 1 / 1; }
.ld-media--wide { aspect-ratio: 21 / 9; }

.ld-media--flat { border-radius: 0; }
.ld-media--tilt { transform: rotate(-1.2deg); }
.ld-media--clip { clip-path: polygon(0 0, 100% 0, 100% 84%, 0 100%); border-radius: 0; }

.ld-media__caption {
  margin-top: 10px;
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ld-gray);
}

.ld-slant { clip-path: polygon(0 0, 100% 3%, 100% 100%, 0 97%); }

/* ---------- 12. 头部：悬浮胶囊浮岛 ---------- */
.ld-header {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: 14px 0 8px;
  pointer-events: none;
}

.ld-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  background: rgba(11, 17, 22, 0.14);
  pointer-events: none;
}

.ld-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--ld-cyan) 0%, var(--ld-grass) 55%, var(--ld-orange) 100%);
  transition: width 0.1s linear;
}

.ld-skip {
  position: absolute;
  left: 50%;
  top: 10px;
  z-index: 100;
  transform: translate(-50%, -180%);
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--ld-cyan);
  color: var(--ld-ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  pointer-events: auto;
  transition: transform 0.22s var(--ld-ease);
}

.ld-skip:focus { transform: translate(-50%, 0); }

.ld-header__island {
  position: relative;
  pointer-events: auto;
  width: min(1480px, 100% - 2rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 12px 9px 16px;
  border: 1px solid rgba(34, 240, 200, 0.36);
  border-radius: 999px;
  background: linear-gradient(100deg, rgba(11, 17, 22, 0.97) 0%, rgba(20, 42, 52, 0.95) 58%, rgba(43, 62, 79, 0.95) 100%);
  box-shadow: 0 20px 44px -26px rgba(11, 17, 22, 0.95), inset 0 1px 0 rgba(233, 238, 243, 0.07);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: padding 0.3s var(--ld-ease), box-shadow 0.3s var(--ld-ease);
}

.ld-header.is-scrolled .ld-header__island {
  padding-block: 5px;
  box-shadow: 0 14px 32px -22px rgba(11, 17, 22, 0.95), 0 0 0 1px rgba(34, 240, 200, 0.16);
}

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

.ld-brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border: 2px solid var(--ld-cyan);
  border-radius: 11px;
  background: var(--ld-ink);
  color: var(--ld-cyan);
  font-family: var(--ld-font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.ld-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.22;
  min-width: 0;
}

.ld-brand__name {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.ld-brand__tag {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ld-gray);
  white-space: nowrap;
}

/* 导航 */
.ld-nav {
  display: block;
  margin-left: clamp(6px, 1.4vw, 22px);
  min-width: 0;
}

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

.ld-nav__link {
  display: block;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: rgba(233, 238, 243, 0.9);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s var(--ld-ease), border-color 0.2s var(--ld-ease), color 0.2s var(--ld-ease);
}

.ld-nav__link:hover {
  background: rgba(34, 240, 200, 0.12);
  border-color: rgba(34, 240, 200, 0.42);
  color: var(--ld-cyan);
}

.ld-nav__link[aria-current="page"] {
  background: var(--ld-cyan);
  border-color: var(--ld-cyan);
  color: var(--ld-ink);
  font-weight: 600;
}

/* 右侧操作 */
.ld-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex: 0 0 auto;
}

.ld-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid rgba(233, 238, 243, 0.28);
  border-radius: 999px;
  background: transparent;
  color: var(--ld-mist);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s var(--ld-ease), color 0.2s var(--ld-ease), transform 0.2s var(--ld-ease), box-shadow 0.2s var(--ld-ease);
}

.ld-pill--index:hover { background: rgba(34, 240, 200, 0.14); color: var(--ld-cyan); border-color: rgba(34, 240, 200, 0.5); }

.ld-pill__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ld-cyan);
  box-shadow: 0 0 0 3px rgba(34, 240, 200, 0.18);
  flex: 0 0 auto;
}

.ld-pill--cta {
  background: var(--ld-orange);
  border-color: var(--ld-ink);
  color: var(--ld-ink);
  font-weight: 700;
  box-shadow: 4px 4px 0 rgba(11, 17, 22, 0.9);
}

.ld-pill--cta:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 rgba(11, 17, 22, 0.9); }

/* 汉堡按钮 */
.ld-nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border: 2px solid var(--ld-cyan);
  border-radius: 13px;
  background: transparent;
  color: var(--ld-cyan);
  transition: background 0.2s var(--ld-ease);
}

.ld-nav-toggle:hover { background: rgba(34, 240, 200, 0.14); }

.ld-nav-toggle__bars { display: grid; gap: 4px; }
.ld-nav-toggle__bars i {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s var(--ld-ease), opacity 0.2s var(--ld-ease);
}

.ld-nav-toggle[aria-expanded="true"] { background: rgba(34, 240, 200, 0.2); }
.ld-nav-toggle[aria-expanded="true"] .ld-nav-toggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.ld-nav-toggle[aria-expanded="true"] .ld-nav-toggle__bars i:nth-child(2) { opacity: 0; }
.ld-nav-toggle[aria-expanded="true"] .ld-nav-toggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* 返回顶部 */
.ld-totop {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 70;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 2px solid var(--ld-ink);
  border-radius: 50%;
  background: var(--ld-cyan);
  color: var(--ld-ink);
  box-shadow: 5px 5px 0 rgba(11, 17, 22, 0.82);
  pointer-events: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.28s var(--ld-ease), transform 0.28s var(--ld-ease), visibility 0.28s linear;
}

.ld-totop.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- 13. 页脚 ---------- */
.ld-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 110px);
  overflow: hidden;
  border-top: 4px solid var(--ld-cyan);
  background: var(--ld-grass-deep);
  color: var(--ld-mist);
}

.ld-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 0%, rgba(34, 240, 200, 0.16), transparent 44%),
    radial-gradient(circle at 88% 10%, rgba(74, 46, 143, 0.55), transparent 48%),
    repeating-linear-gradient(0deg, rgba(233, 238, 243, 0.045) 0 1px, transparent 1px 4px);
}

.ld-footer__inner {
  position: relative;
  padding-top: clamp(36px, 5vw, 64px);
}

.ld-footer__top {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 2.2fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

.ld-footer__brand .ld-brand { color: var(--ld-mist); }
.ld-footer__brand .ld-brand__tag { color: rgba(233, 238, 243, 0.62); }

.ld-footer__note {
  margin-top: 16px;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(233, 238, 243, 0.78);
}

.ld-footer__contact { margin-top: 20px; }

.ld-footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px dashed rgba(233, 238, 243, 0.14);
}

.ld-footer__label {
  flex: 0 0 62px;
  padding-top: 2px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ld-cyan);
}

.ld-footer__value {
  font-family: var(--ld-font-mono);
  font-size: 13px;
  color: rgba(233, 238, 243, 0.92);
  word-break: break-all;
}

.ld-footer__value--text { font-family: var(--ld-font-cn); font-size: 14px; word-break: normal; }

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

.ld-footer__title {
  margin-bottom: 14px;
  font-family: var(--ld-font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ld-cyan);
}

.ld-footer__list li {
  padding: 6px 0;
  font-size: 14px;
  color: rgba(233, 238, 243, 0.82);
  border-bottom: 1px solid rgba(233, 238, 243, 0.09);
}

.ld-footer__list a {
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 240, 200, 0.45);
  transition: color 0.2s var(--ld-ease);
}

.ld-footer__list a:hover { color: var(--ld-cyan); }

.ld-footer__bottom {
  position: relative;
  margin-top: clamp(28px, 4vw, 52px);
  padding: 18px 0 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 26px;
  border-top: 1px solid rgba(233, 238, 243, 0.18);
  font-size: 12px;
  color: rgba(233, 238, 243, 0.68);
}

.ld-footer__legal,
.ld-footer__meta { font-family: var(--ld-font-mono); letter-spacing: 0.04em; }

.ld-footer__links { display: flex; flex-wrap: wrap; gap: 18px; }
.ld-footer__links a {
  color: var(--ld-mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 240, 200, 0.5);
  transition: color 0.2s var(--ld-ease);
}
.ld-footer__links a:hover { color: var(--ld-cyan); }

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1200px) {
  .ld-brand__tag { display: none; }
}

@media (max-width: 1180px) {
  .ld-pill--index { display: none; }
}

@media (max-width: 1080px) {
  .ld-header__island { gap: 10px; padding: 8px 10px 8px 14px; }

  .ld-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 10px);
    margin: 0;
    padding: 14px;
    border: 1px solid rgba(34, 240, 200, 0.36);
    border-radius: 24px;
    background: rgba(11, 17, 22, 0.98);
    box-shadow: 0 26px 52px -20px rgba(0, 0, 0, 0.92);
    max-height: calc(100vh - 160px);
    overflow-y: auto;
  }

  .ld-nav[data-open] { display: block; }

  .ld-nav__list { flex-direction: column; align-items: stretch; gap: 4px; }

  .ld-nav__link {
    padding: 13px 16px;
    border-radius: 13px;
    font-size: 15px;
    border-color: rgba(233, 238, 243, 0.12);
  }

  .ld-nav-toggle { display: grid; }

  html.ld-nav-open,
  html.ld-nav-open body { overflow: hidden; }
}

@media (max-width: 960px) {
  .ld-footer__top { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }

  .ld-wrap,
  .ld-wrap--narrow,
  .ld-wrap--wide { width: min(100% - 2rem, 100%); }

  .ld-header { padding-top: 10px; }
  .ld-brand__name { font-size: 14px; letter-spacing: 0.06em; }
  .ld-brand__mark { width: 34px; height: 34px; font-size: 12px; }
  .ld-pill--cta { padding: 8px 13px; font-size: 12px; }

  .ld-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .ld-prose { font-size: 16px; }
}

@media (max-width: 620px) {
  .ld-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ld-footer__cols { grid-template-columns: 1fr 1fr; }
  .ld-footer__bottom { flex-direction: column; align-items: flex-start; }
  .ld-totop { width: 46px; height: 46px; }
  .ld-card { box-shadow: 5px 5px 0 var(--ld-ink); }
}

@media (max-width: 420px) {
  .ld-pill--cta { padding: 7px 11px; font-size: 11px; letter-spacing: 0.04em; }
  .ld-footer__contact li { flex-direction: column; gap: 4px; }
}

/* ---------- 15. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  html { scroll-behavior: auto; }
  .ld-btn:hover,
  .ld-pill--cta:hover { transform: none; }
}