:root {
  --bg: #0b0d19;
  --bg-soft: #111326;
  --panel: rgba(20, 23, 45, .76);
  --panel-solid: #171a32;
  --text: #f8f7ff;
  --muted: #b9b7cc;
  --line: rgba(255,255,255,.11);
  --pink: #ff9bd2;
  --purple: #a79cff;
  --mint: #70e7d2;
  --gold: #f7d28c;
  --shadow: 0 24px 80px rgba(0,0,0,.34);
  --radius-lg: 34px;
  --radius-md: 22px;
  --content: min(1160px, calc(100% - 36px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background:
    radial-gradient(circle at 13% 5%, rgba(255,155,210,.17), transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(167,156,255,.17), transparent 32%),
    radial-gradient(circle at 52% 92%, rgba(112,231,210,.10), transparent 35%),
    linear-gradient(145deg, #090b15 0%, #111126 52%, #0c1020 100%);
  overflow-x: hidden;
}
a { color: inherit; }
button, input { font: inherit; }
::selection { background: rgba(255,155,210,.32); }

.site-bg, .site-bg::before, .site-bg::after {
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
}
.site-bg { overflow: hidden; }
.site-bg::before {
  content: "";
  background-image:
    radial-gradient(circle, rgba(255,255,255,.7) 0 1px, transparent 1.6px),
    radial-gradient(circle, rgba(167,156,255,.45) 0 1px, transparent 1.5px);
  background-size: 58px 58px, 91px 91px;
  background-position: 0 0, 24px 16px;
  opacity: .22;
  animation: drift 35s linear infinite;
}
.site-bg::after {
  content: "";
  width: 650px; height: 650px; left: calc(50% - 325px); top: 9vh;
  border: 1px solid rgba(167,156,255,.13); border-radius: 50%;
  box-shadow: inset 0 0 0 72px transparent, 0 0 100px rgba(167,156,255,.06);
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(255,255,255,.08) 50%, transparent 50.2%),
    linear-gradient(0deg, transparent 49.8%, rgba(255,255,255,.08) 50%, transparent 50.2%);
  animation: spin 45s linear infinite;
}
@keyframes drift { to { transform: translate3d(-58px, -58px, 0); } }
@keyframes spin { to { transform: rotate(360deg); } }

.nav-shell {
  position: sticky; top: 0; z-index: 50;
  padding: 14px 0;
  background: linear-gradient(to bottom, rgba(9,11,21,.88), rgba(9,11,21,.45), transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav {
  width: var(--content); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 10px 13px 10px 15px;
  border: 1px solid var(--line); border-radius: 18px;
  background: rgba(17,19,38,.72); box-shadow: 0 12px 42px rgba(0,0,0,.18);
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 850; letter-spacing: .04em; }
.brand-mark { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 12px; background: linear-gradient(135deg, var(--pink), var(--purple)); color: #151329; box-shadow: 0 8px 24px rgba(255,155,210,.24); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { text-decoration: none; color: var(--muted); padding: 9px 12px; border-radius: 11px; font-size: 14px; transition: .2s ease; }
.nav-links a:hover, .nav-links a.active { color: #fff; background: rgba(255,255,255,.07); }
.menu-btn { display: none; width: 40px; height: 40px; border: 1px solid var(--line); color: #fff; background: rgba(255,255,255,.05); border-radius: 12px; cursor: pointer; }

main { width: var(--content); margin: 0 auto; }
.hero { min-height: 710px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 52px; padding: 64px 0 76px; }
.kicker { display: inline-flex; align-items: center; gap: 9px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.045); color: #e8e3ff; font-size: 13px; }
.kicker::before { content:""; width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 16px var(--mint); }
.hero h1 { margin: 22px 0 18px; font-size: clamp(52px, 8vw, 102px); line-height: .95; letter-spacing: -.065em; }
.gradient-text { background: linear-gradient(120deg, #fff 8%, #ffd5eb 35%, #bcb4ff 68%, #8ef3df 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-copy { max-width: 680px; color: var(--muted); font-size: clamp(16px, 2vw, 19px); line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 18px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; font-weight: 750; transition: transform .2s, border-color .2s, background .2s; }
.btn:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.25); }
.btn-primary { color: #171328; background: linear-gradient(135deg, #ffd3e9, #b8afff); box-shadow: 0 14px 35px rgba(167,156,255,.20); border-color: transparent; }
.btn-ghost { background: rgba(255,255,255,.045); }

.orbit-card { position: relative; aspect-ratio: 1; max-width: 500px; margin: auto; display: grid; place-items: center; }
.orbit, .orbit::before, .orbit::after { position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.14); }
.orbit { inset: 3%; animation: spin 30s linear infinite; }
.orbit::before { content:""; inset: 12%; border-style: dashed; border-color: rgba(255,155,210,.27); animation: spin 20s linear reverse infinite; }
.orbit::after { content:""; inset: 28%; border-color: rgba(112,231,210,.25); }
.sigil { position: relative; z-index: 3; width: 58%; aspect-ratio: 1; display: grid; place-items: center; border-radius: 34%; transform: rotate(45deg); background: linear-gradient(135deg, rgba(255,155,210,.22), rgba(167,156,255,.18)); border: 1px solid rgba(255,255,255,.18); box-shadow: 0 30px 90px rgba(78,58,151,.28), inset 0 0 55px rgba(255,255,255,.06); }
.sigil-inner { width: 62%; aspect-ratio: 1; border: 1px solid rgba(255,255,255,.22); transform: rotate(45deg); border-radius: 50%; display: grid; place-items: center; background: rgba(9,10,25,.42); }
.sigil-star { transform: rotate(-90deg); font-size: clamp(54px, 8vw, 90px); background: linear-gradient(135deg, var(--pink), var(--purple), var(--mint)); -webkit-background-clip: text; color: transparent; filter: drop-shadow(0 0 22px rgba(255,155,210,.3)); }
.float-chip { position: absolute; z-index: 4; padding: 10px 13px; border: 1px solid var(--line); border-radius: 14px; background: rgba(18,21,43,.86); color: #eeeaff; font-size: 13px; box-shadow: 0 12px 34px rgba(0,0,0,.25); animation: bob 5s ease-in-out infinite; }
.float-chip.one { left: 0; top: 23%; }
.float-chip.two { right: 0; bottom: 22%; animation-delay: -2.2s; }
.float-chip.three { left: 11%; bottom: 7%; animation-delay: -3.5s; }
@keyframes bob { 50% { transform: translateY(-10px); } }

.section { padding: 76px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.section-label { color: var(--mint); font-size: 12px; letter-spacing: .18em; font-weight: 800; text-transform: uppercase; }
.section h2 { margin: 7px 0 0; font-size: clamp(30px, 5vw, 52px); letter-spacing: -.045em; }
.section-intro { max-width: 560px; color: var(--muted); line-height: 1.8; }
.grid { display: grid; gap: 18px; }
.projects-grid { grid-template-columns: 1.35fr .65fr; }
.card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); box-shadow: var(--shadow); backdrop-filter: blur(16px); }
.card-pad { padding: 28px; }
.feature-project { min-height: 500px; display: grid; grid-template-columns: .9fr 1.1fr; }
.feature-project .copy { padding: 36px; display: flex; flex-direction: column; justify-content: center; }
.feature-project h3, .project-card h3 { margin: 0 0 12px; font-size: 28px; }
.feature-project p, .project-card p { color: var(--muted); line-height: 1.8; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 24px; }
.tag { padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.08); color: #ddd9ef; font-size: 12px; }
.project-image { min-height: 100%; background-size: cover; background-position: center; position: relative; }
.project-image::after { content:""; position:absolute; inset:0; background: linear-gradient(90deg, var(--panel-solid), transparent 45%), linear-gradient(0deg, rgba(9,10,23,.5), transparent 45%); }
.side-stack { display: grid; gap: 18px; }
.project-card { min-height: 241px; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; }
.project-card .icon { font-size: 30px; }
.project-card.coming { background: linear-gradient(145deg, rgba(27,30,58,.82), rgba(13,16,31,.85)); }

.diary-grid { grid-template-columns: repeat(3, 1fr); }
.diary-card { display: flex; flex-direction: column; min-height: 290px; padding: 26px; text-decoration: none; transition: transform .22s, border-color .22s; }
.diary-card:hover { transform: translateY(-5px); border-color: rgba(255,255,255,.23); }
.diary-date { color: var(--gold); font-size: 12px; letter-spacing: .09em; }
.diary-card h3 { margin: 18px 0 10px; font-size: 22px; }
.diary-card p { color: var(--muted); line-height: 1.75; margin: 0; }
.diary-meta { margin-top: auto; padding-top: 20px; color: #d8d4e9; font-size: 13px; }

.about-band { display: grid; grid-template-columns: .7fr 1.3fr; gap: 30px; align-items: center; padding: 38px; }
.avatar-orb { width: 180px; aspect-ratio: 1; margin: auto; border-radius: 50%; display: grid; place-items: center; font-size: 62px; background: radial-gradient(circle at 36% 28%, #fff, #e7c8ff 11%, #9e90ff 34%, #24274a 68%); box-shadow: 0 0 70px rgba(167,156,255,.22); }
.about-band p { color: var(--muted); line-height: 1.9; }

.page-hero { padding: 78px 0 40px; max-width: 820px; }
.page-hero h1 { margin: 14px 0; font-size: clamp(46px, 8vw, 84px); letter-spacing: -.06em; }
.page-hero p { color: var(--muted); line-height: 1.9; font-size: 18px; }
.diary-list { display: grid; gap: 18px; padding: 24px 0 90px; }
.diary-entry { padding: 32px; }
.diary-entry h2 { margin: 10px 0 14px; font-size: clamp(25px, 4vw, 36px); }
.diary-entry p { margin: 0; color: var(--muted); line-height: 1.95; white-space: pre-line; }
.diary-entry .entry-tag { display:inline-block; margin-top:20px; color:#e5e1f2; font-size:12px; padding:6px 9px; border-radius:999px; border:1px solid var(--line); background:rgba(255,255,255,.04); }
.project-list { padding: 20px 0 90px; display: grid; gap: 20px; }
.project-row { display:grid; grid-template-columns: 300px 1fr; min-height:260px; }
.project-row .thumb { background-size:cover; background-position:center; }
.project-row .body { padding:32px; }
.project-row h2 { margin:0 0 12px; font-size:32px; }
.project-row p { color:var(--muted); line-height:1.85; }
.about-page { display:grid; grid-template-columns: .7fr 1.3fr; gap:30px; padding: 20px 0 90px; }
.about-card { padding:32px; }
.about-card h2 { margin-top:0; }
.about-card p, .about-card li { color:var(--muted); line-height:1.9; }
.note-box { border-left:3px solid var(--mint); padding:16px 18px; background:rgba(112,231,210,.06); border-radius:0 14px 14px 0; color:#dfedf0; }

.footer { width: var(--content); margin: 0 auto; padding: 35px 0 50px; border-top: 1px solid var(--line); display:flex; align-items:center; justify-content:space-between; gap:20px; color:var(--muted); font-size:13px; }
.footer a { text-decoration:none; color:#e3deef; }
.reveal { opacity:1; transform:none; transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity:1; transform:none; }

@media (max-width: 900px) {
  .hero { grid-template-columns:1fr; min-height:auto; padding-top:54px; }
  .orbit-card { width:min(90vw,460px); }
  .projects-grid, .diary-grid, .about-band, .about-page { grid-template-columns:1fr; }
  .feature-project { grid-template-columns:1fr; }
  .project-image { min-height:330px; order:-1; }
  .project-image::after { background:linear-gradient(0deg,var(--panel-solid),transparent 50%); }
  .project-row { grid-template-columns:1fr; }
  .project-row .thumb { min-height:260px; }
}
@media (max-width: 680px) {
  :root { --content: min(100% - 22px, 1160px); }
  .nav { position:relative; }
  .menu-btn { display:grid; place-items:center; }
  .nav-links { display:none; position:absolute; left:0; right:0; top:60px; padding:10px; border:1px solid var(--line); border-radius:16px; background:rgba(15,17,34,.96); box-shadow:var(--shadow); }
  .nav-links.open { display:grid; }
  .nav-links a { padding:12px; }
  .hero { gap:26px; padding:40px 0 58px; }
  .hero h1 { font-size:clamp(50px,18vw,78px); }
  .float-chip { display:none; }
  .section { padding:52px 0; }
  .section-head { align-items:start; flex-direction:column; }
  .feature-project .copy, .card-pad, .project-card, .diary-card, .diary-entry, .about-card { padding:23px; }
  .footer { align-items:flex-start; flex-direction:column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation:none !important; scroll-behavior:auto !important; transition:none !important; }
  .reveal { opacity:1; transform:none; }
}