@charset "UTF-8";

:root {
  --primary: #6f6aff;
  --primary-light: #d26bff;
  --primary-soft: rgba(111, 106, 255, 0.16);
  --text: #f5f7ff;
  --muted: #a3a7bc;
  --bg: #06070b;
  --bg-deep: #0d0f16;
  --border: rgba(255, 255, 255, 0.08);
  --card-bg: rgba(20, 22, 31, 0.86);
  --card-hover: rgba(28, 31, 43, 0.96);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --shadow-strong: 0 28px 70px rgba(0, 0, 0, 0.42);
  --surface-ring: rgba(210, 107, 255, 0.14);
  --page-width: 1180px;
  --nav-height: 68px;
  --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "SF Pro Display", "-apple-system", "Microsoft YaHei", sans-serif;
}

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

body {
  color: var(--text);
  background:
    radial-gradient(circle at top center, rgba(111, 106, 255, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(210, 107, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #05060a 0%, #080910 55%, #05060a 100%);
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  line-height: 1.65;
  padding-top: calc(var(--nav-height) + 16px + env(safe-area-inset-top));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 82%);
  opacity: 0.34;
  z-index: -2;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  overflow-wrap: anywhere;
}

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

p,
h1,
h2,
h3,
li,
span,
strong {
  overflow-wrap: anywhere;
}

/* --- 导航 --- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: auto;
  width: 100%;
  max-width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: 0;
  border-radius: 0 0 22px 22px;
  background: rgba(10, 12, 18, 0.82);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
  transition:
    border-color 0.3s var(--ease-standard),
    box-shadow 0.3s var(--ease-standard),
    transform 0.3s var(--ease-standard),
    background 0.3s var(--ease-standard);
}

nav.is-scrolled {
  border-color: rgba(210, 107, 255, 0.18);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.38);
}

a.logo {
  flex-shrink: 0;
  text-decoration: none;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.nav-links {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  display: grid;
  gap: 8px;
  padding: 10px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 15, 22, 0.96);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(-8px) scale(0.98);
  pointer-events: none;
  transition:
    opacity 0.24s var(--ease-standard),
    transform 0.24s var(--ease-standard);
}

.nav-links.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 500;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid transparent;
  transition:
    color 0.25s var(--ease-standard),
    background 0.25s var(--ease-standard),
    border-color 0.25s var(--ease-standard),
    transform 0.25s var(--ease-standard);
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(111, 106, 255, 0.14);
  border-color: rgba(210, 107, 255, 0.18);
}

.menu-btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  color: var(--text);
  appearance: none;
  -webkit-appearance: none;
}

.menu-btn svg {
  transition: transform 0.3s var(--ease-standard);
}

.menu-btn:focus-visible {
  outline: 2px solid rgba(210, 107, 255, 0.7);
  outline-offset: 3px;
}

.menu-btn .line1,
.menu-btn .line2,
.menu-btn .line3 {
  transition: all 0.3s var(--ease-standard);
  transform-origin: center;
  stroke: #fff;
}

.menu-btn.open .line1 {
  transform: translateY(6px) rotate(45deg);
}

.menu-btn.open .line2 {
  opacity: 0;
}

.menu-btn.open .line3 {
  transform: translateY(-6px) rotate(-45deg);
}

[data-parallax] {
  transform: translate3d(0, var(--parallax-offset, 0), 0);
  transition: transform 0.25s linear;
  will-change: transform;
}

/* --- 通用动效 --- */
[data-motion] {
  opacity: 1;
  filter: blur(0);
  transform: translate3d(0, var(--parallax-offset, 0), 0) scale(1);
}

.motion-ready [data-motion] {
  opacity: 0;
  filter: blur(10px);
  transform: translate3d(0, 28px, 0);
  transition:
    opacity 0.7s var(--ease-standard),
    transform 0.7s var(--ease-standard),
    filter 0.7s var(--ease-standard);
  transition-delay: var(--motion-delay, 0ms);
  will-change: opacity, transform, filter;
}

.motion-ready [data-motion="fade-left"] {
  transform: translate3d(32px, 0, 0);
}

.motion-ready [data-motion="fade-right"] {
  transform: translate3d(-32px, 0, 0);
}

.motion-ready [data-motion="scale-in"] {
  transform: translate3d(0, 18px, 0) scale(0.96);
}

.motion-ready [data-motion].is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translate3d(0, var(--parallax-offset, 0), 0) scale(1);
}

.reduced-motion *,
.reduced-motion *::before,
.reduced-motion *::after {
  animation: none !important;
  transition-duration: 0.01ms !important;
  transition-delay: 0ms !important;
  scroll-behavior: auto !important;
}

/* --- 通用页脚 --- */
.site-footer {
  padding: 0 5% 28px;
}

.footer-shell {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  background:
    radial-gradient(circle at top right, rgba(210, 107, 255, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(20, 22, 31, 0.92) 0%, rgba(10, 11, 17, 0.98) 100%);
  box-shadow: var(--shadow);
}

.footer-brand {
  max-width: 360px;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 10px;
  text-decoration: none;
  font-size: 1.15rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-brand p,
.footer-item p {
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-links {
  display: grid;
  gap: 12px;
}

.footer-item {
  min-height: 0;
  padding: 16px 16px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition:
    transform 0.3s var(--ease-standard),
    border-color 0.3s var(--ease-standard),
    background 0.3s var(--ease-standard);
}

.footer-item:hover {
  transform: translateY(-3px);
  border-color: rgba(210, 107, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
}

.footer-label {
  display: block;
  margin-bottom: 8px;
  color: #fff;
  font-size: 0.88rem;
  font-weight: 700;
}

.footer-item a {
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 600;
}

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

@media (min-width: 900px) {
  body {
    padding-top: calc(86px + env(safe-area-inset-top));
  }

  nav {
    top: calc(18px + env(safe-area-inset-top));
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: min(calc(100% - 36px), calc(var(--page-width) + 40px));
    max-width: none;
    padding: 14px 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
  }

  a.logo {
    font-size: 1.2rem;
  }

  .menu-btn {
    display: none;
  }

  .nav-links {
    position: static;
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .nav-links a {
    padding: 10px 14px;
  }

  .site-footer {
    padding: 0 8% 40px;
  }

  .footer-shell {
    padding: 28px 32px;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    gap: 32px;
  }

  .footer-links {
    flex: 1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .footer-item {
    min-height: 110px;
  }
}