/* ── Page layout vars（design token 已抽到 _tokens.css） ── */
:root{--max-w:1200px;--pad-x:2rem;--sidebar-w:220px}
@media(max-width:768px){:root{--sidebar-w:0px;--pad-x:1.25rem}}

body{min-height:100vh;overflow:hidden}
@media(max-width:768px){body{overflow:auto}}

/* ── Reveal ─────────────────────────────────────── */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].revealed{opacity:1;transform:translateY(0)}
[data-reveal-delay="1"]{transition-delay:.07s}

/* ── Neural canvas ──────────────────────────────── */
#neural-canvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}

/* ── Dashboard layout ───────────────────────────── */
.dash-wrap{position:fixed;inset:0;z-index:1;display:grid;grid-template-columns:var(--sidebar-w) 1fr;background:var(--bg);overflow:hidden}
.dash-sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border-dim);display:flex;flex-direction:column;overflow:hidden;height:100vh}
.dash-main{display:flex;flex-direction:column;height:100vh;overflow:hidden;min-width:0}
.dash-content{flex:1;overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth;min-height:0}
.dash-content::-webkit-scrollbar{width:4px}
.dash-content::-webkit-scrollbar-track{background:transparent}
.dash-content::-webkit-scrollbar-thumb{background:var(--border-mid);border-radius:2px}
.dash-content::-webkit-scrollbar-thumb:hover{background:var(--border-bright)}

/* .sb-* / .m-* mobile topbar / overlay 已集中至 _components.css */

@media(max-width:768px){
  .dash-wrap{position:relative;display:block;height:auto;min-height:100svh;overflow:visible}
  .dash-sidebar{display:none}
  .dash-main{display:block;height:auto;overflow:visible}
  .dash-content{overflow:visible;height:auto;background:var(--bg);padding-top:52px;padding-bottom:2rem;min-height:100svh}
}

/* ── Footer ─────────────────────────────────────── */
.footer{border-top:1px solid var(--border-dim);background:var(--bg-titlebar)}
.footer-inner{max-width:var(--max-w);margin:0 auto;padding:2.5rem var(--pad-x);display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:start;gap:2.5rem}
.footer .logo{height:72px;width:auto;display:block;margin-bottom:.45rem;opacity:.7}
.footer .tagline{font-size:.76rem;color:var(--text-dim);max-width:26rem;line-height:1.65}
.footer-links{display:flex;gap:2rem}
.footer-links a{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);transition:color .2s ease}
.footer-links a:hover{color:var(--text-muted)}
.footer-contact{display:flex;flex-direction:column;gap:.5rem}
.footer-contact-title{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);margin-bottom:.2rem}
.footer-contact-item{display:flex;align-items:center;gap:.45rem;font-size:.76rem;color:var(--text-dim);transition:color .2s ease}
.footer-contact-item:hover{color:var(--text-muted)}
.footer-contact-item svg{width:13px;height:13px;flex-shrink:0}
.copy{font-family:var(--font-mono);font-size:.62rem;color:var(--text-dim);width:100%;grid-column:1/-1;opacity:.6}

/* ══════════════════════════════════════════════════
   PORTFOLIO STYLES
   ══════════════════════════════════════════════════ */

/* Section layout */
.portfolio-section{padding:clamp(2.5rem,5vw,4rem) var(--pad-x) clamp(2rem,4vw,3rem);max-width:var(--max-w);margin:0 auto}

/* Header */
.portfolio-header{margin-bottom:clamp(2rem,4vw,3rem);border-bottom:1px solid var(--border-dim);padding-bottom:clamp(1.75rem,3.5vw,2.5rem)}
.portfolio-hero{display:grid;grid-template-columns:1fr auto;gap:2rem;align-items:end}
@media(max-width:768px){.portfolio-hero{grid-template-columns:1fr}}
.portfolio-hero-stats{display:flex;flex-direction:column;gap:.75rem;align-items:flex-end;padding-bottom:.2rem;flex-shrink:0}
@media(max-width:768px){.portfolio-hero-stats{flex-direction:row;align-items:center}}
.ph-stat{text-align:right}
@media(max-width:768px){.ph-stat{text-align:left}}
.ph-stat-n{font-family:var(--font-sans);font-size:1.4rem;font-weight:700;color:var(--accent);line-height:1;letter-spacing:-.02em;display:block}
.ph-stat-l{font-family:var(--font-mono);font-size:.6rem;color:var(--text-dim);letter-spacing:.06em;display:block}
.eyebrow{font-family:var(--font-mono);font-size:.82rem;letter-spacing:.12em;color:var(--accent);opacity:.7;margin-bottom:1rem}
.page-title{font-family:var(--font-sans);font-size:clamp(2rem,5vw,3.5rem);font-weight:700;line-height:1.15;color:var(--text);margin-bottom:1rem;letter-spacing:-.02em}
.pt-dim{display:block;color:var(--text-muted)}
.pt-grad{display:block;background:linear-gradient(135deg,#7370ec,#5b8bf5 60%,#4da8da);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-sub{font-family:var(--font-sans);font-size:clamp(1rem,2vw,1.1rem);color:var(--text-muted);line-height:1.7;max-width:44rem}

/* Filter bar */
.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2.5rem}
.filter-btn{padding:.45rem 1rem;border-radius:100px;font-size:.82rem;font-weight:500;border:1px solid var(--border-dim);color:var(--text-muted);background:transparent;cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease;font-family:var(--font-sans)}
.filter-btn:hover{border-color:var(--border);color:var(--text)}
.filter-btn.active{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}

/* Portfolio grid */
.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}

/* Cards */
.p-card{background:var(--bg-surface);border:1px solid var(--border-dim);border-radius:12px;overflow:hidden;opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease,border-color .2s ease,box-shadow .2s ease;display:flex;flex-direction:column}
.p-card.revealed{opacity:1;transform:translateY(0)}
.p-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 24px var(--accent-glow)}
a.p-card{color:inherit;text-decoration:none;cursor:pointer}
a.p-card:hover .p-card-img img{transform:scale(1.04)}
.p-card-img{aspect-ratio:16/9;background:var(--bg);overflow:hidden;position:relative}
.p-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;display:block}
.p-card:hover .p-card-img img{transform:scale(1.04)}
.p-card-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:700;color:var(--accent);opacity:.18;font-family:var(--font-sans)}
.p-card-body{padding:1.25rem}
.p-card-badge{display:inline-block;padding:.2rem .6rem;border-radius:4px;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;background:var(--accent-dim);color:var(--accent);margin-bottom:.75rem}
.p-card-title{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:.4rem;line-height:1.4}
.p-card-desc{font-size:.875rem;color:var(--text-muted);line-height:1.65;margin-bottom:.75rem}
.p-card-tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-bottom:.75rem}
.p-card-tag{padding:.15rem .5rem;border-radius:4px;font-size:.72rem;background:var(--bg);color:var(--text-dim);border:1px solid var(--border-dim)}
.p-card-link{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;color:var(--accent);transition:opacity .18s ease;display:inline-block}
.p-card-link:hover{opacity:.7}
a.p-card-img{display:block;text-decoration:none;cursor:pointer}

/* Skeleton */
.skeleton{border-radius:12px;height:300px;background:linear-gradient(90deg,var(--bg-surface) 25%,var(--bg-elevated) 50%,var(--bg-surface) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* State messages */
.state-msg{text-align:center;padding:5rem 2rem;display:none}
.state-msg.visible{display:block}
.state-msg-icon{font-size:2.5rem;margin-bottom:1rem;opacity:.35}
.state-msg-text{font-size:.95rem;color:var(--text-dim);font-family:var(--font-mono)}