/* ============================================================
 * 周越博 · 个人主页 —— 样式表
 * 深色科技风 · 玻璃拟态 · 霓虹光效
 * ============================================================ */
:root {
  --bg: #04070f;
  --bg2: #0a1222;
  --panel: rgba(14, 24, 46, 0.62);
  --panel-solid: #0c1526;
  --line: rgba(56, 189, 248, 0.14);
  --line-strong: rgba(56, 189, 248, 0.35);
  --cyan: #22d3ee;
  --blue: #3b82f6;
  --violet: #a78bfa;
  --gold: #fbbf24;
  --green: #34d399;
  --text: #e6eefb;
  --muted: #8ea3c4;
  --mono: 'JetBrains Mono', 'Cascadia Code', Consolas, 'Courier New', monospace;
  --sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --radius: 16px;
  --shadow: 0 20px 60px rgba(2, 6, 18, 0.6);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(34, 211, 238, 0.3); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #060b16; }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #164e63, #1e3a8a); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: #0e7490; }

a { color: var(--cyan); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; }

/* ---------- 全局背景画布 / 光效 ---------- */
#bg-canvas {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0;
  background:
    radial-gradient(60% 45% at 18% 8%, rgba(30, 64, 175, 0.22), transparent 62%),
    radial-gradient(50% 40% at 85% 18%, rgba(8, 145, 178, 0.16), transparent 60%),
    radial-gradient(55% 45% at 50% 100%, rgba(88, 28, 135, 0.14), transparent 65%);
  pointer-events: none;
}
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  pointer-events: none;
}
#cursor-glow {
  position: fixed; top: 0; left: 0; z-index: 2;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.09), transparent 65%);
  pointer-events: none;
  transition: opacity .3s;
}
#scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 120;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet));
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.8);
}
#confetti-host { position: fixed; inset: 0; z-index: 200; pointer-events: none; overflow: hidden; }
#confetti-host i {
  position: absolute; top: -20px;
  border-radius: 2px;
  animation: confettiFall 2.6s cubic-bezier(0.2, 0.6, 0.3, 1) forwards;
}
@keyframes confettiFall {
  0% { transform: translate(0, 0) rotate(0deg); opacity: 1; }
  100% { transform: translate(var(--dx), var(--dy)) rotate(var(--rot)); opacity: 0.2; }
}

/* ---------- 滚动显现 ---------- */
[data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity 0.75s ease, transform 0.75s ease; }
[data-reveal].in { opacity: 1; transform: none; }

/* ---------- 玻璃面板 ---------- */
.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

/* ---------- 导航 ---------- */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 5vw;
  transition: background 0.35s, box-shadow 0.35s, padding 0.35s;
}
#navbar.scrolled {
  background: rgba(5, 9, 18, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  padding: 9px 5vw;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.logo {
  font-weight: 800; font-size: 20px; letter-spacing: 2px;
  color: var(--text);
  display: flex; align-items: center; gap: 10px;
}
.logo .logo-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan), 0 0 30px rgba(34, 211, 238, 0.6);
  animation: pulse 2.4s ease-in-out infinite;
}
.logo em { font-style: normal; color: var(--cyan); }
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.45); opacity: 0.6; }
}
#nav-menu { display: flex; gap: 6px; align-items: center; }
#nav-menu a {
  color: var(--muted); font-size: 15px; padding: 7px 14px; border-radius: 999px;
  transition: color 0.25s, background 0.25s;
  position: relative;
}
#nav-menu a:hover { color: var(--text); background: rgba(56, 189, 248, 0.1); }
#nav-menu a.active { color: var(--cyan); background: rgba(34, 211, 238, 0.12); }
#nav-menu a.active::after {
  content: ''; position: absolute; left: 50%; bottom: 2px; transform: translateX(-50%);
  width: 18px; height: 2px; border-radius: 2px; background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
#nav-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; padding: 8px;
}
#nav-burger span {
  width: 22px; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
#nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#nav-burger.open span:nth-child(2) { opacity: 0; }
#nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 通用区块 ---------- */
main { position: relative; z-index: 3; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { padding: 110px 0; position: relative; }
.kicker {
  font-family: var(--mono); font-size: 13px; letter-spacing: 4px;
  color: var(--cyan); text-transform: uppercase;
  display: flex; align-items: center; gap: 14px; margin-bottom: 14px;
}
.kicker::before { content: ''; width: 42px; height: 1px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: 1px; }
.section-title .grad {
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-sub { color: var(--muted); margin-top: 10px; max-width: 640px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 12px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; transition: all 0.3s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #06b6d4, #2563eb);
  color: #fff; box-shadow: 0 8px 26px rgba(6, 182, 212, 0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 34px rgba(6, 182, 212, 0.5); }
.btn-ghost {
  background: rgba(56, 189, 248, 0.07); color: var(--text);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: rgba(56, 189, 248, 0.16); transform: translateY(-3px); }
.btn-mini {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line-strong);
  background: rgba(56, 189, 248, 0.08); color: var(--text); font-size: 13px;
  transition: all 0.25s;
}
.btn-mini:hover { background: rgba(34, 211, 238, 0.2); transform: translateY(-1px); }

/* ---------- Hero ---------- */
#home {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 140px 0 90px;
}
.hero-inner { max-width: 900px; }
#hero-terminal {
  font-family: var(--mono); font-size: 13px; color: var(--green);
  background: rgba(6, 18, 30, 0.65); border: 1px solid var(--line);
  border-radius: 8px; padding: 9px 14px; margin-bottom: 26px;
  display: inline-block;
  box-shadow: inset 0 0 20px rgba(34, 211, 238, 0.05);
}
#hero-terminal::after { content: '▊'; color: var(--green); animation: blink 1.2s ease-in-out infinite; margin-left: 4px; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.15; } }
.hero-name-wrap { display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; }
#hero-name {
  font-size: clamp(52px, 9vw, 96px); font-weight: 900; letter-spacing: 6px; line-height: 1.05;
  background: linear-gradient(120deg, #fff 20%, var(--cyan) 55%, var(--violet) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 26px rgba(34, 211, 238, 0.25));
}
#hero-en { font-family: var(--mono); font-size: 15px; color: var(--muted); letter-spacing: 3px; }
.hero-role-line { margin-top: 16px; font-size: clamp(17px, 2.4vw, 21px); color: var(--muted); }
.hl-school { color: var(--blue); font-weight: 600; }
.hero-dir-line { margin-top: 12px; font-size: 18px; color: var(--text); }
.hero-type-line { margin-top: 12px; font-size: 16px; color: var(--muted); }
#hero-dir { color: var(--cyan); font-weight: 700; }
#typewriter {
  display: inline-block; min-width: 8ch;
  color: var(--cyan); font-weight: 700;
}
.tw-cursor {
  display: inline-block; width: 2px; height: 1.05em;
  margin-left: 3px; vertical-align: -0.12em;
  background: var(--cyan); border-radius: 1px;
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.9);
  animation: cursorBlink 1.4s ease-in-out infinite;
}
@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.12; }
}
#hero-motto { margin-top: 18px; color: var(--muted); font-size: 15px; max-width: 560px; }
#hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
#hero-stats {
  margin-top: 56px; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px;
}
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 16px; text-align: center;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.stat:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 10px 30px rgba(6, 182, 212, 0.15); }
.stat-num {
  font-size: 30px; font-weight: 800; font-family: var(--mono);
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-suf { font-size: 18px; }
.stat-label { font-size: 12.5px; color: var(--muted); margin-top: 6px; }

.hero-chips { position: absolute; inset: 0; pointer-events: none; z-index: -1; }
.hero-chip {
  position: absolute; padding: 8px 16px; border-radius: 999px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 1px;
  background: rgba(14, 24, 46, 0.7); border: 1px solid var(--line-strong);
  color: var(--cyan); backdrop-filter: blur(8px);
  animation: floaty 7s ease-in-out infinite;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.15);
}
@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-16px) rotate(1.5deg); }
}

/* ---------- 技能 ---------- */
#skills-grid { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 16px; }
.skill-group { padding: 22px; }
.skill-group h4 {
  font-size: 15px; color: var(--cyan); margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.skill-group h4::before { content: '▸'; color: var(--blue); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 12.5px; color: var(--text);
  background: rgba(56, 189, 248, 0.1); border: 1px solid var(--line);
  padding: 5px 12px; border-radius: 999px;
  transition: all 0.25s;
}
.chip:hover { background: rgba(34, 211, 238, 0.22); border-color: var(--cyan); transform: translateY(-2px); }

/* ---------- 论文 ---------- */
.paper-grid { margin-top: 40px; display: grid; grid-template-columns: 1.05fr 1.25fr; gap: 22px; align-items: stretch; }
.paper-info { padding: 30px; display: flex; flex-direction: column; }
.paper-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.badge {
  font-size: 12px; padding: 5px 12px; border-radius: 999px; font-weight: 600;
  border: 1px solid; letter-spacing: 0.4px;
}
.badge-sci { color: var(--violet); border-color: rgba(167, 139, 250, 0.5); background: rgba(167, 139, 250, 0.12); }
.badge-cyan { color: var(--cyan); border-color: rgba(34, 211, 238, 0.5); background: rgba(34, 211, 238, 0.1); }
.badge-gold { color: var(--gold); border-color: rgba(251, 191, 36, 0.5); background: rgba(251, 191, 36, 0.1); }
.badge-blue { color: var(--blue); border-color: rgba(59, 130, 246, 0.5); background: rgba(59, 130, 246, 0.12); }
.paper-title { font-size: clamp(18px, 2.2vw, 24px); font-weight: 800; line-height: 1.45; color: #fff; }
.paper-title-cn { margin-top: 8px; color: var(--muted); font-size: 14px; }
.paper-meta { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 14px; color: var(--muted); font-size: 13px; font-family: var(--mono); }
.paper-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.tag {
  font-size: 12px; color: var(--text);
  background: rgba(167, 139, 250, 0.12); border: 1px solid rgba(167, 139, 250, 0.35);
  padding: 4px 11px; border-radius: 7px; transition: all 0.25s;
}
.tag:hover { background: rgba(167, 139, 250, 0.25); transform: translateY(-2px); }
.paper-abstract { margin-top: 20px; color: #b9c8e2; font-size: 14px; line-height: 1.95; }
.paper-metrics { margin-top: 22px; display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; }
.metric {
  background: rgba(5, 12, 26, 0.65); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 10px; text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}
.metric:hover { transform: translateY(-4px); border-color: var(--cyan); }
.metric b {
  display: block; font-size: 21px; font-family: var(--mono);
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.metric span { font-size: 12px; color: var(--muted); }
.paper-actions { margin-top: auto; padding-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }

.paper-viewer { display: flex; flex-direction: column; overflow: hidden; min-width: 0; }
.viewer-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  background: rgba(5, 12, 26, 0.5);
}
.viewer-title { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--muted); font-family: var(--mono); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 2s infinite; }
.viewer-actions { display: flex; gap: 8px; }
.viewer-frame { flex: 1; min-height: 620px; background: #0a0f1d; }
.viewer-frame iframe { width: 100%; height: 100%; min-height: 620px; border: 0; display: block; background: #fff; }
.viewer-tip { padding: 10px 16px; font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line); background: rgba(5, 12, 26, 0.4); }

/* ---------- 项目经历 ---------- */
#project-cards {
  margin-top: 40px; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 16px;
}
.project-card {
  position: relative; text-align: left;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 20px; color: var(--text);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.4s, box-shadow 0.4s, opacity 0.4s;
  overflow: hidden;
}
.project-card::before {
  content: ''; position: absolute; inset: 0; border-radius: var(--radius);
  background: radial-gradient(60% 50% at 50% 0%, rgba(34, 211, 238, 0.14), transparent 70%);
  opacity: 0; transition: opacity 0.4s;
}
.project-card:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.project-card.active {
  border-color: var(--cyan); transform: translateY(-8px) scale(1.02);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.5), 0 18px 44px rgba(6, 182, 212, 0.22);
}
.project-card.active::before { opacity: 1; }
.project-card.dim { opacity: 0.4; transform: scale(0.97); }
.pc-icon { font-size: 34px; margin-bottom: 12px; }
.pc-award {
  display: inline-block; font-size: 11.5px; font-weight: 700; padding: 3px 10px;
  border-radius: 999px; margin-bottom: 10px; letter-spacing: 0.5px;
}
.award-gold { color: var(--gold); background: rgba(251, 191, 36, 0.14); border: 1px solid rgba(251, 191, 36, 0.45); }
.award-silver { color: #cbd5e1; background: rgba(203, 213, 225, 0.14); border: 1px solid rgba(203, 213, 225, 0.45); }
.award-blue { color: var(--blue); background: rgba(59, 130, 246, 0.14); border: 1px solid rgba(59, 130, 246, 0.45); }
.award-purple { color: var(--violet); background: rgba(167, 139, 250, 0.14); border: 1px solid rgba(167, 139, 250, 0.45); }
.award-cyan { color: var(--cyan); background: rgba(34, 211, 238, 0.14); border: 1px solid rgba(34, 211, 238, 0.45); }
.pc-name { font-size: 17px; font-weight: 700; line-height: 1.4; }
.pc-org { font-size: 12px; color: var(--muted); margin-top: 5px; }
.pc-time { font-size: 12px; color: var(--muted); font-family: var(--mono); margin-top: 4px; }
.pc-go { margin-top: 16px; font-size: 13px; color: var(--cyan); display: flex; align-items: center; gap: 6px; }
.pc-go span { transition: transform 0.3s; }
.project-card:hover .pc-go span, .project-card.active .pc-go span { transform: translateX(6px); }

#project-stage { margin-top: 22px; padding: 0; overflow: hidden; }
#project-stage.swap { animation: stageSwap 0.5s cubic-bezier(0.22, 1, 0.36, 1); }
@keyframes stageSwap {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}
.pd-head {
  display: flex; gap: 22px; padding: 28px 30px 0;
  border-bottom: 1px solid var(--line);
}
.pd-icon { font-size: 52px; line-height: 1; filter: drop-shadow(0 0 18px rgba(34, 211, 238, 0.3)); }
.pd-meta { flex: 1; min-width: 0; }
.pd-title-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.pd-name { font-size: 24px; font-weight: 800; }
.pd-sub { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.pd-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.pd-line { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 14px; color: var(--muted); font-size: 13px; }
.pd-role { color: var(--cyan); }
.pd-tabs {
  display: flex; gap: 6px; padding: 16px 30px 0; flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.pd-tab {
  background: none; border: 0; color: var(--muted);
  font-size: 14.5px; padding: 10px 16px; border-radius: 10px 10px 0 0;
  position: relative; transition: color 0.25s, background 0.25s;
}
.pd-tab:hover { color: var(--text); background: rgba(56, 189, 248, 0.08); }
.pd-tab.active { color: var(--cyan); background: rgba(34, 211, 238, 0.1); }
.pd-tab.active::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 0; height: 2px;
  background: var(--cyan); box-shadow: 0 0 10px var(--cyan); border-radius: 2px;
}
.tab-n {
  font-size: 11px; background: rgba(34, 211, 238, 0.2); color: var(--cyan);
  border-radius: 999px; padding: 1px 7px; margin-left: 3px;
}
.pd-body { padding: 26px 30px 30px; min-height: 280px; }
.pd-body.fade { animation: fadeUp 0.4s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.pd-desc { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.pd-desc li {
  position: relative; padding-left: 26px; color: #c3d2ea; font-size: 14.5px;
}
.pd-desc li::before {
  content: '▹'; position: absolute; left: 0; top: 0;
  color: var(--cyan); font-size: 16px;
}
.pd-tech { margin-top: 26px; }
.pd-tech h4 { font-size: 14px; color: var(--cyan); margin-bottom: 12px; }

.media-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.media-card {
  background: rgba(5, 12, 26, 0.6); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; text-align: center; transition: all 0.3s; cursor: pointer;
}
.media-card:hover { border-color: var(--cyan); transform: translateY(-4px); box-shadow: 0 12px 30px rgba(6, 182, 212, 0.18); }
.mc-thumb {
  height: 120px; display: flex; align-items: center; justify-content: center;
  font-size: 46px; border-radius: 10px; margin-bottom: 12px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.12), rgba(59, 130, 246, 0.12));
  border: 1px dashed var(--line-strong);
}
.mc-name { font-size: 13.5px; font-weight: 600; color: var(--text); }
.mc-action { margin-top: 8px; font-size: 12px; color: var(--cyan); }

.video-wrap { background: #05080f; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.video-wrap video { width: 100%; aspect-ratio: 16/9; display: block; background: #000; }
.video-title { padding: 11px 14px; font-size: 13px; color: var(--cyan); }

.doc-list { display: flex; flex-direction: column; gap: 10px; }
.doc-item {
  display: flex; align-items: center; gap: 16px;
  background: rgba(5, 12, 26, 0.6); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 18px; transition: all 0.3s;
}
.doc-item:hover { border-color: var(--line-strong); transform: translateX(4px); }
.doc-ic { font-size: 26px; }
.doc-info { flex: 1; min-width: 0; }
.doc-name { font-size: 14px; font-weight: 600; word-break: break-all; }
.doc-size { font-size: 12px; color: var(--muted); margin-top: 2px; font-family: var(--mono); }
.doc-actions { display: flex; gap: 8px; flex-shrink: 0; }

.code-view { display: grid; grid-template-columns: 250px 1fr; gap: 14px; min-height: 380px; }
.code-files { display: flex; flex-direction: column; gap: 8px; }
.code-file {
  text-align: left; background: rgba(5, 12, 26, 0.6); border: 1px solid var(--line);
  border-radius: 10px; padding: 11px 13px; color: var(--text);
  transition: all 0.25s; display: flex; flex-direction: column; gap: 3px;
}
.code-file small { font-size: 11px; color: var(--muted); }
.code-file:hover { border-color: var(--line-strong); }
.code-file.active { border-color: var(--cyan); background: rgba(34, 211, 238, 0.1); box-shadow: 0 0 14px rgba(34, 211, 238, 0.15); }
.cf-lang {
  align-self: flex-start; font-size: 10px; font-family: var(--mono);
  color: var(--violet); background: rgba(167, 139, 250, 0.15);
  border: 1px solid rgba(167, 139, 250, 0.4); border-radius: 5px; padding: 1px 7px;
  margin-bottom: 3px;
}
.code-panel {
  background: #070d1b; border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; display: flex; flex-direction: column; min-width: 0;
}
.code-head {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 10px 14px; border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 12.5px; color: var(--cyan);
}
.code-hint { font-size: 11px; color: var(--muted); font-family: var(--sans); }
.code-body {
  flex: 1; overflow: auto; margin: 0; padding: 14px 0;
  font-family: var(--mono); font-size: 12.8px; line-height: 1.75;
  max-height: 520px;
  scrollbar-width: thin;
}
.code-body code { font-family: inherit; }
.code-body .loading { color: var(--muted); display: block; padding: 20px; }
.cline { display: flex; white-space: pre; }
.cline:hover { background: rgba(56, 189, 248, 0.06); }
.ln {
  min-width: 46px; text-align: right; padding-right: 14px; user-select: none;
  color: #33496e; flex-shrink: 0;
  border-right: 1px solid rgba(56, 189, 248, 0.1); margin-right: 14px;
}
.ct { color: #c9d7ee; }
.tk-c { color: #4b6a8f; font-style: italic; }
.tk-s { color: #86efac; }
.tk-n { color: #fbbf24; }
.tk-k { color: #7dd3fc; font-weight: 600; }
.tk-p { color: #c084fc; }

.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 20px; text-align: center; gap: 8px;
  border: 1px dashed var(--line-strong); border-radius: 14px;
  background: rgba(5, 12, 26, 0.4);
}
.es-icon { font-size: 52px; animation: floaty 4s ease-in-out infinite; }
.es-t { font-size: 15px; color: var(--text); font-weight: 600; }
.es-s { font-size: 13px; color: var(--muted); }

.pd-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 30px; border-top: 1px solid var(--line);
}
.pd-nav .btn-mini { font-size: 13px; }
#proj-count { font-family: var(--mono); font-size: 13px; color: var(--muted); letter-spacing: 2px; }

/* ---------- 获奖荣誉 ---------- */
#awards-grid { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.award-card {
  position: relative; text-align: left;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 20px; color: var(--text);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
}
.award-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--cyan), var(--violet));
  opacity: 0; transition: opacity 0.35s;
}
.award-card:hover { transform: translateY(-6px) rotate(-0.6deg); border-color: var(--line-strong); box-shadow: 0 14px 36px rgba(6, 182, 212, 0.16); }
.award-card:hover::before { opacity: 1; }
.aw-medal { font-size: 32px; margin-bottom: 10px; filter: drop-shadow(0 0 12px rgba(251, 191, 36, 0.35)); }
.aw-name { font-size: 14.5px; font-weight: 700; line-height: 1.5; }
.aw-note { font-size: 12px; color: var(--muted); margin-top: 8px; }
.aw-go { margin-top: 14px; font-size: 12.5px; color: var(--cyan); opacity: 0.75; }
#awards-extra { margin-top: 26px; list-style: none; display: flex; flex-wrap: wrap; gap: 10px 26px; }
#awards-extra li { color: var(--muted); font-size: 13px; }
#awards-extra li::before { content: '✦ '; color: var(--gold); }

/* ---------- 简历与成绩单 ---------- */
.resume-grid { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.resume-card { display: flex; flex-direction: column; overflow: hidden; }
.resume-card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  background: rgba(5, 12, 26, 0.5);
}
.resume-card-head h3 { font-size: 15px; color: var(--text); display: flex; align-items: center; gap: 9px; }
.resume-frame { flex: 1; min-height: 620px; background: #0a0f1d; }
.resume-frame iframe { width: 100%; height: 620px; border: 0; display: block; background: #fff; }
.resume-actions { display: flex; gap: 8px; }

/* ---------- 联系 ---------- */
.contact-grid { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.contact-card {
  padding: 26px; text-align: center; transition: all 0.3s;
}
.contact-card:hover { transform: translateY(-6px); border-color: var(--cyan); }
.cc-icon { font-size: 34px; margin-bottom: 12px; }
.cc-label { font-size: 12.5px; color: var(--muted); letter-spacing: 2px; text-transform: uppercase; }
.cc-value { margin-top: 8px; font-size: 15.5px; font-weight: 700; color: var(--text); word-break: break-all; }

/* ---------- 页脚 ---------- */
footer {
  position: relative; z-index: 3;
  border-top: 1px solid var(--line);
  padding: 34px 0; text-align: center; color: var(--muted); font-size: 13px;
}
footer .foot-mono { font-family: var(--mono); font-size: 12px; color: #5b7292; margin-top: 8px; }

/* ---------- 灯箱 ---------- */
#lightbox {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(2, 6, 15, 0.92); backdrop-filter: blur(10px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px 4vw;
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s;
}
#lightbox.open { opacity: 1; pointer-events: auto; }
#lb-top {
  width: 100%; max-width: 1100px; display: flex; align-items: center;
  justify-content: space-between; gap: 16px; margin-bottom: 16px;
}
#lb-title { font-size: 15px; color: var(--text); font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#lb-close {
  background: rgba(56, 189, 248, 0.12); border: 1px solid var(--line-strong);
  color: var(--text); width: 40px; height: 40px; border-radius: 50%;
  font-size: 18px; transition: all 0.3s; flex-shrink: 0;
}
#lb-close:hover { background: rgba(239, 68, 68, 0.35); transform: rotate(90deg); }
#lb-content {
  width: 100%; max-width: 1100px; max-height: 82vh;
  display: flex; align-items: center; justify-content: center;
  animation: lbIn 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes lbIn { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: none; } }
#lb-content img { max-width: 100%; max-height: 82vh; object-fit: contain; border-radius: 8px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6); }
#lb-content iframe { width: 100%; height: 82vh; border: 0; border-radius: 8px; background: #fff; }
#lb-content video { max-width: 100%; max-height: 82vh; border-radius: 8px; }

/* ---------- 返回顶部 ---------- */
#back-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 110;
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, #06b6d4, #2563eb);
  border: 0; color: #fff; font-size: 18px;
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.4);
  opacity: 0; transform: translateY(20px); pointer-events: none;
  transition: all 0.35s;
}
#back-top.show { opacity: 1; transform: none; pointer-events: auto; }
#back-top:hover { transform: translateY(-4px); }

/* ---------- 响应式 ---------- */
@media (max-width: 1020px) {
  .paper-grid { grid-template-columns: 1fr; }
  .viewer-frame { min-height: 520px; }
  .viewer-frame iframe { min-height: 520px; }
  .code-view { grid-template-columns: 1fr; }
  .code-files { flex-direction: row; flex-wrap: wrap; }
  .code-file { flex: 1 1 200px; }
}
@media (max-width: 860px) {
  section { padding: 80px 0; }
  #nav-menu {
    position: fixed; top: 0; right: -280px; width: 260px; height: 100vh;
    background: rgba(5, 9, 18, 0.97); backdrop-filter: blur(18px);
    flex-direction: column; align-items: flex-start; padding: 90px 28px 40px; gap: 14px;
    transition: right 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    border-left: 1px solid var(--line);
  }
  #nav-menu.open { right: 0; }
  #nav-menu a { font-size: 17px; }
  #nav-burger { display: flex; z-index: 101; }
  .resume-grid { grid-template-columns: 1fr; }
  .pd-head { flex-direction: column; gap: 14px; }
  .pd-tabs { padding: 12px 18px 0; }
  .pd-body { padding: 20px 18px 24px; }
  .pd-nav { padding: 12px 18px; }
  .doc-item { flex-wrap: wrap; }
  .doc-actions { width: 100%; justify-content: flex-end; }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  #hero-name { letter-spacing: 3px; }
  .paper-info { padding: 22px; }
  .viewer-frame, .viewer-frame iframe { min-height: 420px; }
  .resume-frame iframe { height: 480px; }
  .hero-chip { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}