/* ============ 赛博朋克 · 深色科技感主题 ============ */
:root {
  --bg: #05070f;
  --bg2: #0a0e1a;
  --panel: rgba(13, 19, 34, 0.82);
  --line: #1b2740;
  --cyan: #00f0ff;
  --magenta: #ff2ec4;
  --yellow: #f6c945;
  --text: #d7e3f4;
  --dim: #7b8db0;
  --mono: Consolas, "JetBrains Mono", "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-shadow: 0 0 8px var(--cyan); }
strong { color: var(--cyan); font-weight: 600; }

/* ---- 背景：扫描线 + 网格 ---- */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.18) 0 1px, transparent 1px 3px),
    radial-gradient(1200px 600px at 70% -10%, rgba(0, 240, 255, 0.08), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(255, 46, 196, 0.07), transparent 60%);
}
.nav, .hero, .section, .footer { position: relative; z-index: 1; }

/* ---- 导航 ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 7, 15, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.logo {
  font-family: var(--mono);
  color: var(--cyan);
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
}
.nav-links { display: flex; gap: 22px; font-size: 14px; flex-wrap: wrap; }
.nav-links a { color: var(--dim); transition: color .2s; }
.nav-links a:hover { color: var(--cyan); text-shadow: 0 0 8px var(--cyan); }
.nav-links .gh { color: var(--magenta); }
.nav-links .gh:hover { color: var(--magenta); text-shadow: 0 0 8px var(--magenta); }

/* ---- Hero ---- */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: 1080px; margin: 0 auto; padding: 40px 24px; width: 100%; }
.kicker {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--magenta);
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.glitch {
  font-family: var(--mono);
  font-size: clamp(42px, 9vw, 92px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: 2px;
  position: relative;
  display: inline-block;
}
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.glitch::before {
  color: var(--cyan);
  animation: glitch-a 2.4s infinite steps(1);
}
.glitch::after {
  color: var(--magenta);
  animation: glitch-b 3.1s infinite steps(1);
}
@keyframes glitch-a {
  0%, 88% { transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
  90% { clip-path: inset(0 0 55% 0); transform: translate(-4px, 2px); }
  94% { clip-path: inset(60% 0 0 0); transform: translate(4px, -2px); }
  98% { clip-path: inset(20% 0 40% 0); transform: translate(-3px, 0); }
  100% { transform: translate(0, 0); clip-path: inset(0 0 100% 0); }
}
@keyframes glitch-b {
  0%, 80% { transform: translate(0, 0); clip-path: inset(100% 0 0 0); }
  84% { clip-path: inset(40% 0 20% 0); transform: translate(5px, -1px); }
  90% { clip-path: inset(5% 0 85% 0); transform: translate(-5px, 1px); }
  96% { clip-path: inset(70% 0 10% 0); transform: translate(3px, 0); }
  100% { transform: translate(0, 0); clip-path: inset(100% 0 0 0); }
}
.terminal-line {
  font-family: var(--mono);
  font-size: clamp(15px, 2.4vw, 19px);
  color: var(--yellow);
  margin: 18px 0 8px;
  min-height: 1.6em;
}
.prompt { color: var(--cyan); }
.cursor { color: var(--cyan); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-sub { color: var(--dim); font-size: 15px; margin-bottom: 26px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- 按钮 ---- */
.btn {
  display: inline-block;
  padding: 11px 26px;
  border: 1px solid var(--cyan);
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all .2s;
  background: transparent;
  color: var(--cyan);
}
.btn.primary { background: rgba(0, 240, 255, 0.08); box-shadow: 0 0 18px rgba(0, 240, 255, 0.25), inset 0 0 12px rgba(0, 240, 255, 0.12); }
.btn.primary:hover { background: rgba(0, 240, 255, 0.2); box-shadow: 0 0 30px rgba(0, 240, 255, 0.5); color: #02121c; text-shadow: none; }
.btn.ghost { border-color: var(--magenta); color: var(--magenta); box-shadow: 0 0 14px rgba(255, 46, 196, 0.2); }
.btn.ghost:hover { background: rgba(255, 46, 196, 0.15); color: var(--magenta); text-shadow: 0 0 8px var(--magenta); }
.hero-meta { list-style: none; display: flex; gap: 22px; flex-wrap: wrap; margin-top: 30px; font-family: var(--mono); font-size: 13px; color: var(--dim); }
.hero-meta .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot.ok { background: #37e2a0; box-shadow: 0 0 10px #37e2a0; animation: pulse 1.6s infinite; }
@keyframes pulse { 50% { opacity: .4; } }

/* ---- 通用 section ---- */
.section { padding: 72px 24px; border-bottom: 1px solid var(--line); }
.wrap { max-width: 1080px; margin: 0 auto; }
.sec-title {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 30px;
  letter-spacing: 1px;
}
.sec-title .cmt { color: var(--magenta); margin-right: 8px; }

/* ---- Panel 卡片（赛博边框） ---- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 30px;
  position: relative;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.4);
}
.panel::before, .panel::after,
.card::before, .card::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 2px solid var(--cyan);
  pointer-events: none;
}
.panel::before { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.panel::after { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }
.card::before { top: -2px; right: -2px; border-left: 0; border-bottom: 0; border-color: var(--magenta); }
.card::after { bottom: -2px; left: -2px; border-right: 0; border-top: 0; border-color: var(--magenta); }
.panel p { margin-bottom: 12px; }
.panel .dim, .dim { color: var(--dim); }

/* ---- 信息网格 ---- */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 20px; }
.info-item { border: 1px solid var(--line); padding: 12px 14px; background: rgba(0, 240, 255, 0.03); }
.info-item .label { display: block; font-family: var(--mono); font-size: 11px; color: var(--magenta); letter-spacing: 2px; margin-bottom: 4px; }
.ok-text { color: #37e2a0; }

/* ---- 技能 ---- */
.skill-group { margin-bottom: 24px; }
.group-title { font-family: var(--mono); color: var(--yellow); font-size: 15px; margin-bottom: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-family: var(--mono);
  font-size: 13px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(13, 19, 34, 0.6);
  transition: all .2s;
}
.chip:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.35);
  transform: translateY(-2px);
}

/* ---- 项目卡片 ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 26px;
  transition: all .25s;
}
.card:hover { border-color: var(--magenta); box-shadow: 0 0 26px rgba(255, 46, 196, 0.2); transform: translateY(-4px); }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.card-idx { font-family: var(--mono); color: var(--dim); font-size: 13px; }
.card-tag { font-family: var(--mono); font-size: 11px; padding: 3px 10px; border: 1px solid var(--magenta); color: var(--magenta); letter-spacing: 1px; }
.card h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }
.card p { font-size: 14px; margin-bottom: 16px; }
.more { font-family: var(--mono); font-size: 13px; color: var(--cyan); }

/* ---- 留言板 ---- */
#form { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
textarea {
  width: 100%;
  background: rgba(5, 7, 15, 0.8);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 14px;
  padding: 12px 14px;
  font-family: inherit;
  resize: vertical;
}
textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 12px rgba(0, 240, 255, 0.25); }
#form .btn { align-self: flex-start; }
.msgs { list-style: none; }
.msgs li {
  border: 1px solid var(--line);
  background: rgba(0, 240, 255, 0.03);
  padding: 12px 14px;
  margin-bottom: 10px;
  font-size: 14px;
}
.msgs li time { display: block; font-family: var(--mono); font-size: 11px; color: var(--dim); margin-top: 4px; }
.empty { font-family: var(--mono); font-size: 13px; }

/* ---- 页脚 ---- */
.footer { padding: 34px 24px; text-align: center; border-top: 1px solid var(--line); }
.footer p { margin-bottom: 4px; font-size: 14px; }
.small { font-size: 12px; }

/* ---- 滚动显现 ---- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

.note { font-family: var(--mono); font-size: 12px; color: var(--dim); margin-top: 18px; }

/* ---- 响应式 ---- */
@media (max-width: 640px) {
  .section { padding: 52px 16px; }
  .nav-links { gap: 14px; }
  .hero-meta { gap: 12px; }
  .panel { padding: 22px; }
}