/* ============================================================
   Rock CD — 全球量化投资专家
   Black / Quant / Apple-like aesthetic
   ============================================================ */

:root {
  --bg: #06070b;
  --bg-soft: #08090f;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-hover: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f5f9;
  --muted: #9aa1ad;
  --muted-2: #6b7280;
  --accent: #7dd3fc;
  --accent-2: #818cf8;
  --accent-3: #c4b5fd;
  --grad: linear-gradient(100deg, #7dd3fc 0%, #818cf8 50%, #c4b5fd 100%);
  --radius: 20px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    sans-serif;
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-h: 72px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 800px at 85% -10%, rgba(99, 102, 241, 0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(14, 165, 233, 0.07), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: rgba(125, 211, 252, 0.25);
  color: #fff;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- 自定义光标 ---------- */

.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  opacity: 0;
  will-change: transform;
}

.cursor-dot {
  width: 6px;
  height: 6px;
  background: #fff;
  transform: translate(-50%, -50%);
}

.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease),
    border-color 0.25s var(--ease), opacity 0.3s;
}

.cursor-ring.is-hover {
  width: 56px;
  height: 56px;
  border-color: rgba(125, 211, 252, 0.55);
}

body.has-cursor,
body.has-cursor a,
body.has-cursor button {
  cursor: none;
}

@media (hover: none), (pointer: coarse) {
  .cursor-dot,
  .cursor-ring {
    display: none;
  }
  body.has-cursor,
  body.has-cursor a,
  body.has-cursor button {
    cursor: auto;
  }
}

/* ---------- 鼠标辉光 ---------- */

.mouse-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    circle,
    rgba(99, 130, 255, 0.10) 0%,
    rgba(125, 211, 252, 0.05) 35%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.6s ease;
  will-change: transform;
}

/* ---------- 导航 ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(6, 7, 11, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}

.nav-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 650;
  letter-spacing: 0.14em;
  font-size: 0.92rem;
}

.brand-mark {
  width: 26px;
  height: 26px;
  color: var(--accent);
}

.brand-logo {
  height: 40px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  position: relative;
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 9px 22px !important;
  font-size: 0.86rem !important;
}

/* ---------- 语言切换 ---------- */

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.lang-switch a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.3s ease, background 0.3s ease;
}

.lang-switch a:hover {
  color: #fff;
}

.lang-switch a.active {
  background: #fff;
  color: #0a0b0e;
  font-weight: 650;
}

.lang-switch-mobile a {
  min-width: 72px;
  height: 36px;
  padding: 0 16px;
  font-size: 0.9rem;
}

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
  align-items: center;
}

.nav-burger span {
  width: 18px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.3s ease;
}

.nav-burger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-burger.open span:nth-child(2) {
  opacity: 0;
}
.nav-burger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---------- 移动端菜单 ---------- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(6, 7, 11, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  font-size: 1.55rem;
  font-weight: 550;
}

.mobile-menu nav a {
  color: var(--muted);
  transition: color 0.3s ease;
}

.mobile-menu nav a:hover {
  color: #fff;
}

.mobile-menu nav .btn {
  font-size: 1rem;
}

/* ---------- 通用 ---------- */

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
}

.kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--grad);
}

.section {
  position: relative;
  padding: 150px 0;
}

.section-dark {
  background:
    radial-gradient(1000px 600px at 50% 0%, rgba(99, 102, 241, 0.06), transparent 60%),
    var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-title {
  font-size: clamp(2rem, 4.8vw, 3.35rem);
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 24px;
}

.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-lead {
  max-width: 760px;
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--muted);
  margin-bottom: 64px;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 34px;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 550;
  letter-spacing: 0.02em;
  transition: transform 0.35s var(--ease), box-shadow 0.35s ease,
    background 0.35s ease, border-color 0.35s ease, color 0.35s ease;
  white-space: nowrap;
}

.btn-primary {
  background: #fff;
  color: #0a0b0e;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(125, 211, 252, 0.25);
}

.btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: calc(var(--nav-h) + 40px) 0 80px;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 180px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  z-index: 1;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-kicker {
  margin-bottom: 34px;
}

.hero-title {
  font-size: clamp(3rem, 9vw, 6.4rem);
  font-weight: 720;
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin-bottom: 34px;
}

.hero-sub {
  max-width: 680px;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.9;
  color: var(--muted);
  margin-bottom: 46px;
}

.hero-sub b {
  color: var(--text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 72px;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.hero-meta i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.8;
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 0.66rem;
  letter-spacing: 0.4em;
  color: var(--muted-2);
}

.hero-scroll i {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-line 2.2s var(--ease) infinite;
}

@keyframes scroll-line {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }
  45% {
    transform: scaleY(1);
    transform-origin: top;
  }
  55% {
    transform: scaleY(1);
    transform-origin: bottom;
  }
  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ---------- 卡片网格 ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  position: relative;
  background: linear-gradient(180deg, var(--panel-hover), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 34px;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: border-color 0.4s ease, transform 0.2s ease;
  will-change: transform;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    420px circle at var(--gx, 50%) var(--gy, 50%),
    rgba(125, 211, 252, 0.10),
    transparent 45%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.card:hover {
  border-color: rgba(125, 211, 252, 0.32);
}

.card:hover::after {
  opacity: 1;
}

.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  color: var(--accent);
  margin-bottom: 28px;
  background: rgba(125, 211, 252, 0.05);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  font-size: 1.22rem;
  font-weight: 620;
  margin-bottom: 12px;
  transform: translateZ(24px);
}

.card p {
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 策略 ---------- */

.strategy {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.strategy-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.strategy-index {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--muted-2);
  letter-spacing: 0.1em;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border: 1px solid rgba(125, 211, 252, 0.35);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 550;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: rgba(125, 211, 252, 0.06);
}

.strategy h3 {
  font-size: 1.42rem;
}

.strategy-en {
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag-list li {
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--muted);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.strategy:hover .tag-list li {
  border-color: var(--line-strong);
  color: var(--text);
}

/* ---------- AI × 量化 ---------- */

.ai-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 80px;
  align-items: center;
}

.ai-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.ai-points li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1rem;
  color: var(--text);
}

.ai-points li span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 12px rgba(125, 211, 252, 0.6);
  flex-shrink: 0;
}

.terminal {
  background: #0a0c12;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
  transform-style: preserve-3d;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.terminal-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.terminal-bar i:first-child {
  background: rgba(248, 113, 113, 0.75);
}
.terminal-bar i:nth-child(2) {
  background: rgba(251, 191, 36, 0.75);
}
.terminal-bar i:nth-child(3) {
  background: rgba(74, 222, 128, 0.75);
}

.terminal-bar span {
  margin-left: 10px;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--muted-2);
}

.terminal-body {
  padding: 26px 24px 34px;
  min-height: 320px;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 2;
  color: #c8ced8;
}

.terminal-body p {
  white-space: pre-wrap;
  word-break: break-word;
}

.t-prompt {
  color: var(--accent);
  margin-right: 8px;
}

.t-ok {
  color: #4ade80;
}

.t-dim {
  color: var(--muted-2);
}

.t-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--accent);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* ---------- 合作伙伴 ---------- */

.marquee {
  overflow: hidden;
  padding: 46px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  -webkit-mask-image: linear-gradient(
    to right,
    transparent,
    #000 12%,
    #000 88%,
    transparent
  );
  mask-image: linear-gradient(
    to right,
    transparent,
    #000 12%,
    #000 88%,
    transparent
  );
}

.marquee-track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: marquee 38s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

.logo-mark {
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.34);
  white-space: nowrap;
  margin-right: 84px;
  transition: color 0.35s ease;
}

.logo-mark:nth-child(even) {
  font-weight: 400;
  letter-spacing: 0.3em;
}

.logo-mark:nth-child(3n) {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: 0.22em;
}

.logo-mark:hover {
  color: #fff;
}

.marquee-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted-2);
  margin-top: 28px;
}

/* ---------- 联系 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 42px 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-hover), var(--panel));
  overflow: hidden;
  transition: border-color 0.4s ease, transform 0.2s ease;
  transform-style: preserve-3d;
}

.contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    420px circle at var(--gx, 50%) var(--gy, 50%),
    rgba(125, 211, 252, 0.10),
    transparent 45%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.contact-card:hover {
  border-color: rgba(125, 211, 252, 0.38);
}

.contact-card:hover::after {
  opacity: 1;
}

.contact-card:hover .contact-arrow {
  background: #fff;
  color: #0a0b0e;
  transform: translate(3px, -3px);
}

.contact-label {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--muted-2);
}

.contact-mail {
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  font-weight: 620;
  letter-spacing: 0.01em;
  transition: color 0.3s ease;
}

.contact-card:hover .contact-mail {
  color: var(--accent);
}

.contact-arrow {
  position: absolute;
  right: 30px;
  top: 36px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--muted);
  transition: background 0.35s ease, color 0.35s ease, transform 0.35s var(--ease);
}

.contact-arrow svg {
  width: 18px;
  height: 18px;
}

.address-card {
  grid-column: 1 / -1;
}

.contact-address {
  font-size: 1.18rem;
  font-weight: 550;
  line-height: 1.7;
}

.contact-address-cn {
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- 页脚 ---------- */

.footer {
  border-top: 1px solid var(--line);
  padding: 76px 0 34px;
  background: rgba(0, 0, 0, 0.25);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.88rem;
  color: var(--muted-2);
}

.footer .brand-logo {
  height: 50px;
  width: auto;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, auto));
  gap: 72px;
}

.footer-links h4 {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 18px;
}

.footer-links a {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--muted-2);
}

.disclaimer {
  max-width: 560px;
}

/* ---------- 滚动显现 ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}

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

/* ---------- 响应式 ---------- */

@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: 1fr;
    max-width: 620px;
  }

  .grid-3 .card {
    transform: none !important;
  }

  .ai-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .address-card {
    grid-column: auto;
  }
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .nav-burger {
    display: flex;
  }

  .section {
    padding: 110px 0;
  }

  .hero-title {
    letter-spacing: -0.03em;
  }

  .desktop-only {
    display: none;
  }

  .logo-mark {
    margin-right: 56px;
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .container {
    padding: 0 20px;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .card {
    padding: 30px 24px;
  }

  .hero-meta {
    gap: 12px;
    font-size: 0.72rem;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .contact-card {
    padding: 34px 26px;
  }

  .contact-arrow {
    display: none;
  }

  .footer-links {
    gap: 40px;
  }
}

/* ---------- 无障碍：减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

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