/* sections.css — 各内容区样式 */

/* Hero */
.hero { text-align: center; padding: 48px 36px; position: relative; overflow: hidden; }
.particles { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.hero-inner { position: relative; z-index: 1; }
.avatar { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; border: 3px solid var(--card-border); box-shadow: 0 4px 16px rgba(0,0,0,0.15); margin-bottom: 18px; opacity: 0; transition: opacity 0.6s ease, transform 0.4s ease; }
.avatar.show { opacity: 1; }
.avatar:hover { transform: scale(1.05); }
.hero h1 { font-size: 2.2rem; font-weight: 800; letter-spacing: 0.5px; }
.hero h1 a { color: inherit; text-decoration: none; }
.role-tag { display: inline-block; margin: 8px 0 6px; font-size: 0.82rem; color: var(--tag-text); background: var(--tag-bg); padding: 4px 14px; border-radius: 999px; letter-spacing: 0.5px; min-height: 1.4em; }
.subtitle { font-size: 1.05rem; color: var(--text-soft); margin-bottom: 14px; letter-spacing: 1px; }
.divider { width: 48px; height: 2px; background: var(--accent); border: none; border-radius: 2px; margin: 0 auto 16px; }
.description { font-size: 0.95rem; color: var(--text-soft); line-height: 1.7; min-height: 1.7em; }
.description strong { color: var(--text); }
.visitor-stat { font-size: 0.76rem; color: var(--text-soft); opacity: 0.75; margin-top: 14px; }

/* Now */
.now-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.now-card { padding: 20px; border-radius: 14px; background: rgba(255,255,255,0.25); border: 1px solid var(--card-border); }
[data-theme="dark"] .now-card { background: rgba(255,255,255,0.06); }
.now-icon { font-size: 1.5rem; margin-bottom: 8px; }
.now-card h3 { font-size: 0.95rem; margin-bottom: 6px; }
.now-card p { font-size: 0.85rem; color: var(--text-soft); line-height: 1.55; margin-bottom: 10px; }
.now-meta { font-size: 0.72rem; color: var(--text-soft); opacity: 0.75; }
.now-meta .tag { margin-right: 4px; }

/* About */
.about-text { font-size: 0.98rem; color: var(--text-soft); line-height: 1.85; margin-bottom: 18px; }
.about-text strong { color: var(--text); }
.pillars { display: flex; flex-wrap: wrap; gap: 10px; }
.pillar { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; font-weight: 600; }

/* Tech Stack */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.tech-group h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-soft); margin-bottom: 12px; }
.tech-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 8px; background: rgba(255,255,255,0.3); border: 1px solid var(--card-border); font-size: 0.82rem; transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease; }
[data-theme="dark"] .chip { background: rgba(255,255,255,0.08); }
.chip:hover { transform: translateY(-2px); background: var(--accent); color: #fff; }
.chip .ic { font-size: 0.95rem; }
.chip-skill { flex-direction: column; align-items: flex-start; gap: 4px; min-width: 88px; }
.skill-bar { width: 100%; height: 4px; border-radius: 2px; background: rgba(128,128,128,0.25); overflow: hidden; }
.skill-fill { display: block; height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.6s ease; }

/* Projects */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.project-card { padding: 22px; border-radius: 14px; background: rgba(255,255,255,0.25); border: 1px solid var(--card-border); text-decoration: none; color: var(--text); transition: transform 0.25s ease, box-shadow 0.25s ease, border 0.25s ease; display: flex; flex-direction: column; }
[data-theme="dark"] .project-card { background: rgba(255,255,255,0.06); }
.project-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0,0,0,0.18); border-color: var(--accent); }
.project-card.featured { grid-column: span 3; }
.proj-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; gap: 10px; }
.project-card h3 { font-size: 1.05rem; }
.status { font-size: 0.68rem; font-weight: 700; padding: 3px 9px; border-radius: 999px; letter-spacing: 0.5px; white-space: nowrap; }
.status-prod { background: rgba(34,197,94,0.15); color: #16a34a; }
.status-wip { background: rgba(245,158,11,0.15); color: #d97706; }
.status-exp { background: rgba(168,85,247,0.15); color: #9333ea; }
[data-theme="dark"] .status-prod { color: #4ade80; }
[data-theme="dark"] .status-wip { color: #fbbf24; }
[data-theme="dark"] .status-exp { color: #c084fc; }
.project-card p { font-size: 0.86rem; color: var(--text-soft); line-height: 1.55; margin-bottom: 12px; flex-grow: 1; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 0.72rem; padding: 3px 10px; border-radius: 999px; background: var(--tag-bg); color: var(--tag-text); }

/* Timeline */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(to bottom, var(--node), transparent); }
.tl-item { position: relative; margin-bottom: 22px; }
.tl-item:last-child { margin-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -28px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--card-bg); border: 2px solid var(--node); transition: all 0.4s ease; }
.tl-item.in::before { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 12px var(--accent); }
.tl-date { font-size: 0.78rem; color: var(--accent); font-weight: 700; margin-bottom: 2px; }
.tl-item h3 { font-size: 1rem; margin-bottom: 4px; }
.tl-item p { font-size: 0.85rem; color: var(--text-soft); line-height: 1.55; }

/* Blog */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.filter-chip { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--card-border); background: rgba(255,255,255,0.25); color: var(--text-soft); font-size: 0.8rem; cursor: pointer; transition: all 0.2s ease; }
[data-theme="dark"] .filter-chip { background: rgba(255,255,255,0.06); }
.filter-chip:hover { color: var(--accent); border-color: var(--accent); }
.filter-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.blog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.blog-card { padding: 20px; border-radius: 14px; background: rgba(255,255,255,0.25); border: 1px solid var(--card-border); text-decoration: none; color: var(--text); transition: transform 0.25s ease, box-shadow 0.25s ease, border 0.25s ease; display: flex; flex-direction: column; }
[data-theme="dark"] .blog-card { background: rgba(255,255,255,0.06); }
.blog-card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: 0 10px 24px rgba(0,0,0,0.15); }
.blog-card h3 { font-size: 1rem; margin-bottom: 6px; }
.blog-card p { font-size: 0.84rem; color: var(--text-soft); line-height: 1.55; margin-bottom: 10px; flex-grow: 1; }
.blog-meta { font-size: 0.72rem; color: var(--text-soft); opacity: 0.75; }
.blog-meta .tag { margin-right: 4px; }
.blog-back { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 0.88rem; margin-bottom: 16px; padding: 0; }
.blog-back:hover { text-decoration: underline; }
.blog-post h1 { font-size: 1.5rem; margin-bottom: 8px; }
.blog-post .blog-meta { margin-bottom: 20px; opacity: 1; }

/* Notes */
.notes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.note-card { padding: 18px 22px; border-radius: 14px; background: rgba(255,255,255,0.25); border: 1px solid var(--card-border); cursor: pointer; transition: border 0.25s ease; }
[data-theme="dark"] .note-card { background: rgba(255,255,255,0.06); }
.note-card:hover { border-color: var(--accent); }
.note-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.note-card h3 { font-size: 0.98rem; }
.note-toggle { font-size: 1rem; color: var(--accent); transition: transform 0.3s ease; }
.note-card.open .note-toggle { transform: rotate(45deg); }
.note-summary { font-size: 0.84rem; color: var(--text-soft); margin: 6px 0 0; }
.note-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, margin 0.4s ease; font-size: 0.86rem; color: var(--text-soft); line-height: 1.7; }
.note-card.open .note-body { max-height: 320px; margin-top: 12px; }
.note-meta { font-size: 0.72rem; color: var(--text-soft); opacity: 0.7; margin-top: 10px; }
.note-meta .tag { margin-right: 4px; }

/* Bookmarks */
.bm-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.bm-group h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-soft); margin-bottom: 12px; }
.bm-links { display: flex; flex-wrap: wrap; gap: 8px; }
.bm-link { display: inline-flex; align-items: center; gap: 6px; padding: 7px 13px; border-radius: 10px; background: rgba(255,255,255,0.3); border: 1px solid var(--card-border); color: var(--text); text-decoration: none; font-size: 0.82rem; transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease; }
[data-theme="dark"] .bm-link { background: rgba(255,255,255,0.08); }
.bm-link:hover { transform: translateY(-2px); background: var(--accent); color: #fff; }
.bm-link .ic { font-size: 0.95rem; }

/* Stats */
.stats-wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.stats-wrap img { border-radius: 12px; max-width: 100%; height: auto; }
.gh-title { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-soft); margin: 20px 0 10px; }
.gh-activity { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.gh-item { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--text-soft); }
.gh-ic { width: 20px; text-align: center; }
.gh-loading { color: var(--text-soft); font-size: 0.82rem; opacity: 0.6; }

/* Guestbook */
.gb-form { display: flex; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.gb-name { flex: 0 0 140px; }
.gb-msg { flex: 1; min-width: 200px; }
.gb-name, .gb-msg { padding: 9px 14px; border-radius: 10px; border: 1px solid var(--card-border); background: rgba(255,255,255,0.3); color: var(--text); font-size: 0.85rem; font-family: inherit; }
[data-theme="dark"] .gb-name, [data-theme="dark"] .gb-msg { background: rgba(255,255,255,0.08); }
.gb-name:focus, .gb-msg:focus { outline: none; border-color: var(--accent); }
.gb-hint { font-size: 0.72rem; color: var(--text-soft); opacity: 0.7; margin-bottom: 14px; }
.gb-list { display: flex; flex-direction: column; gap: 10px; }
.gb-item { padding: 12px 16px; border-radius: 12px; background: rgba(255,255,255,0.2); border: 1px solid var(--card-border); }
[data-theme="dark"] .gb-item { background: rgba(255,255,255,0.06); }
.gb-head { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.gb-head strong { font-size: 0.85rem; }
.gb-time { font-size: 0.7rem; color: var(--text-soft); opacity: 0.6; flex-grow: 1; }
.gb-del { background: none; border: none; color: var(--text-soft); cursor: pointer; font-size: 1.1rem; line-height: 1; opacity: 0.5; }
.gb-del:hover { opacity: 1; color: #ff7b72; }
.gb-item p { font-size: 0.85rem; color: var(--text-soft); line-height: 1.5; word-break: break-word; }
.gb-empty { text-align: center; color: var(--text-soft); opacity: 0.6; font-size: 0.85rem; padding: 16px; }

/* Footer */
.footer { text-align: center; font-size: 0.8rem; color: var(--text-soft); padding: 10px 0; }
.footer a { color: var(--accent); text-decoration: none; }
.footer .sign { margin-top: 4px; opacity: 0.7; letter-spacing: 1px; }

/* Markdown 渲染体（博客详情 + 速记板预览共用） */
.markdown-body { font-size: 0.92rem; line-height: 1.75; color: var(--text); }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { margin: 18px 0 10px; line-height: 1.3; }
.markdown-body h1 { font-size: 1.5rem; } .markdown-body h2 { font-size: 1.25rem; } .markdown-body h3 { font-size: 1.1rem; }
.markdown-body p { margin: 10px 0; }
.markdown-body ul, .markdown-body ol { margin: 10px 0; padding-left: 24px; }
.markdown-body li { margin: 4px 0; }
.markdown-body code { background: var(--tag-bg); color: var(--tag-text); padding: 2px 6px; border-radius: 4px; font-family: ui-monospace, Menlo, monospace; font-size: 0.85em; }
.markdown-body pre { background: #0d1117; color: #c9d1d9; padding: 14px; border-radius: 10px; overflow-x: auto; margin: 12px 0; }
.markdown-body pre code { background: none; color: inherit; padding: 0; }
.markdown-body blockquote { border-left: 3px solid var(--accent); padding-left: 14px; margin: 12px 0; color: var(--text-soft); }
.markdown-body hr { border: none; border-top: 1px solid var(--card-border); margin: 18px 0; }
.markdown-body a { color: var(--accent); }
.markdown-body strong { color: var(--text); }

@media (max-width: 768px) {
    .hero { padding: 36px 22px; }
    .hero h1 { font-size: 1.7rem; }
    .avatar { width: 90px; height: 90px; }
    .now-grid { grid-template-columns: 1fr; }
    .projects { grid-template-columns: 1fr; }
    .project-card.featured { grid-column: span 1; }
    .notes { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
}