:root {
    --bg: #0e0e10;
    --bg-soft: #17171a;
    --card: #1d1d21;
    --line: #2a2a30;
    --text: #e8e8ea;
    --text-dim: #9a9aa2;
    --accent: #d4af37;
    --radius: 12px;
    --maxw: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* ===== Apple-style reveal / parallax ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .8s cubic-bezier(.22,.61,.36,1), transform .8s cubic-bezier(.22,.61,.36,1);
    will-change: opacity, transform;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

.parallax { will-change: transform; }

.hero { will-change: transform, opacity; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    line-height: 1.6;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(14, 14, 16, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 2px;
    text-decoration: none;
    font-size: 18px;
}

.nav-links { display: flex; list-style: none; gap: 6px; flex-wrap: wrap; }

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 14px;
    transition: color .2s, background .2s;
}

.nav-links a:hover { color: var(--text); background: var(--card); }

.nav-links a.active { color: var(--accent); background: var(--card); }

/* ===== Hero ===== */
.hero { padding: 80px 0 60px; text-align: center; }

.hero-title { font-size: 44px; font-weight: 700; letter-spacing: 6px; }

.hero-sub {
    margin-top: 8px;
    color: var(--accent);
    font-size: 18px;
    letter-spacing: 3px;
}

.hero-desc { margin-top: 16px; color: var(--text-dim); max-width: 640px; margin-left: auto; margin-right: auto; }

.hero-tags { margin-top: 20px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.hero-tags span {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-dim);
}

/* ===== Blocks / Works ===== */
.block { margin: 56px 0; }

.block-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 20px; }

.block-title { font-size: 26px; font-weight: 600; }

.block-desc { color: var(--text-dim); font-size: 14px; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.grid[data-cols="2"] { grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: transform .2s, border-color .2s, box-shadow .2s;
    position: relative;
}

.card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: 0 8px 24px rgba(0,0,0,.4); }

.card-img-wrap { width: 100%; aspect-ratio: 1/1; background: #000; overflow: hidden; }

.card-img-wrap.portrait { aspect-ratio: 3/4; }

.card-img-wrap.wide { aspect-ratio: 4/3; }

.card-img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }

.card:hover .card-img { transform: scale(1.04); }

.card-info { padding: 12px 14px; }

.card-info .card-title { font-size: 14px; font-weight: 600; }

.card-info .card-meta { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* ===== Lightbox ===== */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 40px;
}

.lightbox.hidden { display: none; }

.lb-img { max-width: 90vw; max-height: 80vh; object-fit: contain; border-radius: 4px; }

.lb-caption { margin-top: 16px; color: var(--text-dim); font-size: 14px; }

.lb-close, .lb-prev, .lb-next {
    position: absolute;
    background: rgba(255,255,255,.06);
    border: 1px solid var(--line);
    color: var(--text);
    border-radius: 50%;
    cursor: pointer;
    transition: background .2s;
}

.lb-close:hover, .lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,.15); }

.lb-close { top: 20px; right: 20px; width: 40px; height: 40px; font-size: 22px; line-height: 1; }
.lb-prev { left: 20px; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; font-size: 28px; }
.lb-next { right: 20px; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; font-size: 28px; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--line); margin-top: 80px; padding: 30px 0; text-align: center; color: var(--text-dim); font-size: 13px; }

@media (max-width: 640px) {
    .hero-title { font-size: 30px; }
    .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}

/* ===== Notes / Links 页 ===== */
.notes-hero { padding: 56px 0 24px; text-align: center; }
.notes-hero h1 { font-size: 32px; font-weight: 700; letter-spacing: 3px; }
.notes-hero p { color: var(--text-dim); margin-top: 8px; font-size: 15px; }

.note-section { margin: 40px 0; }
.note-title { font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.note-desc { color: var(--text-dim); font-size: 13px; margin-bottom: 14px; }

.note-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 12px;
}
.note-card h3 { font-size: 15px; margin-bottom: 6px; }
.note-card .note-text { color: var(--text-dim); font-size: 14px; white-space: pre-wrap; line-height: 1.7; }
.note-card .note-date { font-size: 12px; color: #6a6a72; margin-bottom: 6px; }

.link-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transition: border-color .2s;
}
.link-card:hover { border-color: var(--accent); }
.link-card .link-title { font-weight: 600; font-size: 14px; color: var(--text); text-decoration: none; }
.link-card .link-title:hover { color: var(--accent); }
.link-card .link-meta { color: var(--text-dim); font-size: 13px; }
.link-card .link-desc { color: var(--text-dim); font-size: 12px; margin-top: 2px; }

.link-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.link-tags span {
    background: rgba(212, 175, 55, 0.12);
    color: var(--accent);
    font-size: 12px;
    padding: 2px 10px;
    border-radius: 999px;
}

.notes-footer { border-top: 1px solid var(--line); margin-top: 60px; padding: 24px 0; text-align: center; color: var(--text-dim); font-size: 13px; }