/* 寻知岸 · XZA / Cloudflare Pages static placeholder */

:root {
  color-scheme: dark;
  --ink: #f5f7fb;
  --muted: rgba(232, 240, 252, .74);
  --faint: rgba(232, 240, 252, .54);
  --line: rgba(255, 255, 255, .16);
  --accent: #77d7ff;
  --accent-warm: #ffca85;
  --header-height: 76px;
  --page-max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100svh;
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: #07111f;
  overflow-x: hidden;
}

.page {
  position: fixed;
  inset: 0;
  z-index: -2;
  display: grid;
  place-items: center;
}

.hero {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 17, 31, .78) 0%, rgba(7, 17, 31, .42) 42%, rgba(7, 17, 31, .12) 100%),
    linear-gradient(180deg, rgba(7, 17, 31, .62) 0%, rgba(7, 17, 31, .18) 38%, rgba(7, 17, 31, .48) 78%, rgba(4, 10, 19, .86) 100%);
}

.site-header,
.site-main,
.site-footer {
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
}

.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  backdrop-filter: blur(14px);
  background: rgba(7, 17, 31, .22);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: .02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
}

.brand-mark svg {
  width: 32px;
  height: 32px;
  overflow: visible;
}

.brand-mark path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.brand-text {
  font-size: 1.02rem;
  white-space: nowrap;
  letter-spacing: .04em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: .92rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 18px;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
  border-color: rgba(119, 215, 255, .68);
  background: rgba(119, 215, 255, .12);
  transform: translateY(-1px);
}

.site-main {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: calc(100svh - var(--header-height) - 92px);
  align-items: center;
}

.hero-content {
  max-width: 880px;
  padding-block: clamp(56px, 10vh, 104px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .42em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  line-height: 1;
  text-wrap: balance;
}

.brand-wordmark {
  display: flex;
  align-items: baseline;
  gap: clamp(14px, 3vw, 28px);
  flex-wrap: wrap;
  row-gap: 12px;
}

.brand-chinese {
  display: block;
  color: #fff;
  font-size: clamp(3.4rem, 10vw, 7.2rem);
  font-weight: 680;
  letter-spacing: .08em;
  line-height: 1.02;
  text-shadow: 0 22px 70px rgba(0, 0, 0, .42);
}

.brand-dot {
  display: block;
  color: rgba(119, 215, 255, .75);
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
}

.brand-latin {
  display: block;
  color: #dceaff;
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 650;
  letter-spacing: .20em;
  line-height: 1;
  text-shadow: 0 18px 55px rgba(0, 0, 0, .32);
}

.brand-rule {
  display: block;
  flex: 0 0 100%;
  width: clamp(240px, 62vw, 560px);
  height: 1px;
  margin-top: clamp(20px, 4vw, 34px);
  background: linear-gradient(90deg, rgba(119, 215, 255, .82), rgba(255, 202, 133, .34), transparent);
}

.tagline {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2.5vw, 1.45rem);
  line-height: 1.75;
  text-wrap: pretty;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 34px 0 0;
  color: var(--faint);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 18px;
  background: rgba(7, 17, 31, .36);
  backdrop-filter: blur(10px);
  font-size: .9rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #8ff0a8;
  box-shadow: 0 0 0 5px rgba(143, 240, 168, .12);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .55; transform: scale(.84); }
}

.site-footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 92px;
  color: var(--faint);
  font-size: .86rem;
}

.site-footer p { margin: 0; }
.footer-note { letter-spacing: .08em; }

.site-header::after,
.site-footer::before {
  content: "";
  position: absolute;
  left: 50%;
  width: 100vw;
  height: 1px;
  transform: translateX(-50%);
  pointer-events: none;
}

.site-header::after {
  bottom: -1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .25) 12%, rgba(255, 255, 255, .16) 88%, transparent);
}

.site-footer::before {
  top: -1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .25) 12%, rgba(255, 255, 255, .16) 88%, transparent);
}
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (max-width: 680px) {
  :root { --header-height: 68px; }

  .site-header {
    position: sticky;
    top: 0;
    background: rgba(7, 17, 31, .78);
  }

  .site-nav { gap: 8px; }
  .site-nav a { padding: 9px 13px; font-size: .84rem; }
  .brand-mark { width: 36px; height: 36px; }
  .brand-mark svg { width: 28px; height: 28px; }
  .brand-text { font-size: .92rem; }
  .brand-wordmark { align-items: flex-start; flex-direction: column; gap: 8px; }
  .brand-dot { display: none; }
  .brand-latin { letter-spacing: .16em; }
  .brand-rule { width: 100%; }
  .site-main { min-height: calc(100svh - var(--header-height) - 84px); }
  .site-footer { min-height: 84px; flex-direction: column; justify-content: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}