@font-face {
  font-family: 'Fixedsys Core';
  src: url('/fonts/fixedsys-core.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Zpix';
  src: url('/fonts/zpix.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #060608;
  --bg-soft: #0c0c11;
  --fg: #f4f4f7;
  --fg-dim: #a0a0ad;
  --fg-faint: #62626e;
  --line: rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.05);
  --accent: #ff2d6f;
  --accent-2: #4d7cff;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --maxw: 880px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Fixedsys Core", "Zpix", "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", monospace;
  font-size: clamp(15px, 1.02vw, 17px);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

/* 背景氛围：噪点 + 顶部渐隐 */
.noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
.glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(70% 50% at 78% -6%, rgba(255, 45, 111, 0.13), transparent 62%),
    radial-gradient(60% 44% at 12% 4%, rgba(77, 124, 255, 0.10), transparent 60%);
}

.topbar, main, .footer { position: relative; z-index: 2; }

/* ---------- topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem var(--pad);
  backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(6, 6, 8, 0.85), rgba(6, 6, 8, 0.35));
  border-bottom: 1px solid var(--line-soft);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-dot {
  width: 10px; height: 10px;
  background: var(--accent);
  box-shadow: 0 0 16px var(--accent), 0 0 40px rgba(255, 45, 111, 0.4);
}
.brand-name { font-size: 1.05rem; }
.spacer { flex: 1; }

.viewer { display: inline-flex; align-items: center; gap: 0.8rem; font-size: 0.82rem; color: var(--fg-dim); }
.viewer a { color: var(--fg-dim); transition: color 0.25s var(--ease); }
.viewer a:hover { color: var(--accent); }
.viewer .who { color: var(--fg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--fg-dim);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.btn:hover { transform: translateY(-2px); border-color: rgba(255, 45, 111, 0.5); color: var(--fg); }
.btn.primary { background: var(--accent); color: #fff; border-color: transparent; box-shadow: 0 8px 30px -10px rgba(255, 45, 111, 0.8); }
.btn.primary:hover { box-shadow: 0 14px 40px -12px rgba(255, 45, 111, 0.95); }

/* ---------- layout ---------- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4.5rem) var(--pad) 5rem;
}

.page-head { margin-bottom: 2.4rem; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin: 0 0 1rem;
}
.pulse {
  width: 7px; height: 7px;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(255, 45, 111, 0.6);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 45, 111, 0.55); }
  70% { box-shadow: 0 0 0 12px rgba(255, 45, 111, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 45, 111, 0); }
}
.page-head h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(2rem, 6vw, 3.2rem);
  letter-spacing: -0.03em;
  font-weight: 800;
  line-height: 1.05;
}
.page-head h1 .accent {
  background: linear-gradient(100deg, var(--accent), #ff7aa2 45%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-head p { margin: 0; color: var(--fg-dim); max-width: 60ch; }

/* ---------- controls ---------- */
.controls {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.controls input, .controls select {
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--fg);
  font: inherit;
  font-size: 0.84rem;
  transition: border-color 0.25s var(--ease);
}
.controls input:focus, .controls select:focus { outline: none; border-color: rgba(255, 45, 111, 0.5); }
.controls input { flex: 1; min-width: 200px; }
.controls input::placeholder { color: var(--fg-faint); }

/* ---------- post list ---------- */
.post-card {
  display: block;
  padding: 1.3rem 1.4rem;
  margin-bottom: 0.9rem;
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  position: relative;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.post-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s var(--ease);
}
.post-card:hover {
  transform: translateX(4px);
  border-color: rgba(255, 45, 111, 0.35);
  background: linear-gradient(180deg, rgba(255, 45, 111, 0.05), rgba(255,255,255,0));
}
.post-card:hover::before { transform: scaleY(1); }
.post-card h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.15rem, 2.6vw, 1.4rem);
  letter-spacing: -0.02em;
  font-weight: 700;
}
.meta {
  color: var(--fg-faint);
  font-size: 0.76rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}
.meta .dot { color: var(--accent); }
.summary { margin: 0.6rem 0 0; color: var(--fg-dim); font-size: 0.92rem; }

.badge {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  padding: 0.14rem 0.5rem;
  border: 1px solid var(--line);
  color: var(--fg-dim);
  text-transform: uppercase;
}
.badge.hot { border-color: rgba(255, 45, 111, 0.5); color: var(--accent); }

.tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.7rem; }
.tag {
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--fg-faint);
  border: 1px solid var(--line-soft);
  padding: 0.2rem 0.55rem;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.post-card:hover .tag { color: var(--fg-dim); }

/* ---------- article ---------- */
.article { max-width: 760px; }
.article-head { margin-bottom: 2rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line-soft); }
.article h1 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  font-weight: 800;
}
.article .meta { font-size: 0.8rem; }

.markdown-body {
  color: var(--fg);
  line-height: 1.85;
  font-size: 0.98rem;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  letter-spacing: -0.02em;
  margin: 2.2rem 0 0.9rem;
  line-height: 1.25;
}
.markdown-body h2 { font-size: 1.5rem; padding-bottom: 0.4rem; border-bottom: 1px solid var(--line-soft); }
.markdown-body h3 { font-size: 1.22rem; }
.markdown-body a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(255,45,111,0.35); }
.markdown-body a:hover { border-bottom-color: var(--accent); }
.markdown-body p { margin: 0 0 1.1rem; }
.markdown-body ul, .markdown-body ol { padding-left: 1.4rem; margin: 0 0 1.1rem; }
.markdown-body li { margin: 0.3rem 0; }
.markdown-body blockquote {
  margin: 1.4rem 0;
  padding: 0.4rem 1.1rem;
  border-left: 2px solid var(--accent);
  color: var(--fg-dim);
  background: rgba(255, 45, 111, 0.04);
}
.markdown-body code {
  font-family: "Fixedsys Core", "Zpix", ui-monospace, monospace;
  font-size: 0.86em;
  background: rgba(255, 255, 255, 0.07);
  padding: 0.12em 0.4em;
  border: 1px solid var(--line-soft);
}
.markdown-body pre {
  margin: 1.4rem 0;
  padding: 1rem 1.2rem;
  overflow-x: auto;
  background: #0a0a0e;
  border: 1px solid var(--line);
}
.markdown-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.84rem;
  line-height: 1.7;
}
.markdown-body img { max-width: 100%; border: 1px solid var(--line-soft); }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: 0.9rem; }
.markdown-body th, .markdown-body td { padding: 0.55rem 0.8rem; border: 1px solid var(--line-soft); text-align: left; }
.markdown-body th { background: rgba(255,255,255,0.04); color: var(--fg-dim); font-weight: 700; }
.markdown-body hr { border: none; border-top: 1px solid var(--line-soft); margin: 2.4rem 0; }

.back { display: inline-block; margin-top: 3rem; font-size: 0.84rem; color: var(--fg-dim); transition: color 0.25s var(--ease); }
.back:hover { color: var(--accent); }

/* ---------- lock ---------- */
.lock {
  border: 1px solid var(--line);
  padding: 3rem 2rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(255,45,111,0.05), rgba(255,255,255,0));
  max-width: 460px;
  margin: 2rem auto;
}
.lock .lock-icon { font-size: 1.6rem; margin-bottom: 0.8rem; }
.lock h2 { margin: 0 0 0.5rem; font-size: 1.3rem; letter-spacing: -0.02em; }
.lock p { color: var(--fg-faint); font-size: 0.84rem; margin: 0 0 1.2rem; }
.lock input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--fg);
  font: inherit;
  margin-bottom: 0.8rem;
  text-align: center;
}
.lock input:focus { outline: none; border-color: rgba(255, 45, 111, 0.5); }

.empty { color: var(--fg-faint); text-align: center; padding: 4rem 0; }
.empty .big { font-size: 1.1rem; color: var(--fg-dim); margin-bottom: 0.4rem; }

/* ---------- footer ---------- */
.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  justify-content: center;
  padding: 2.5rem var(--pad) 3.5rem;
  font-size: 0.74rem;
  color: var(--fg-faint);
  border-top: 1px solid var(--line-soft);
  margin-top: 3rem;
}
.footer-sep { color: var(--accent); }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1.1rem;
  font-size: 0.84rem;
  opacity: 0;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  pointer-events: none;
  z-index: 50;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 640px) {
  .topbar { padding: 0.85rem var(--pad); }
}