:root {
  /* Light theme (default) */
  --bg: #f8fafc;          /* slate-50 */
  --sidebar: #ffffff;     /* white */
  --card: #ffffff;        /* white */
  --text: #0f172a;        /* slate-900 */
  --muted: #64748b;       /* slate-500 */
  --border: #e2e8f0;      /* slate-200 */
  --accent: #2563eb;      /* blue-600 */
  --accent-2: #7c3aed;    /* violet-600 */
}

[data-theme="dark"] {
  --bg: #0f1216;
  --sidebar: #12161c;
  --card: #151a22;
  --text: #e9eef7;
  --muted: #9aa4b2;
  --border: #1e2430;
  --accent: #4ea1ff;
  --accent-2: #7c5cff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(37,99,235,.08), rgba(124,58,237,.08));
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: none; }
.switches { display: flex; gap: 10px; align-items: center; }
.lang-switch, .theme-switch { display: flex; gap: 8px; }
.lang-btn {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
}
.lang-btn.active { color: var(--text); border-color: var(--accent); }
.theme-btn {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
}
.theme-btn.active { color: var(--text); border-color: var(--accent); }

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  padding: 24px;
}

.sidebar {
  background: var(--sidebar);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  position: sticky;
  top: 72px;
  height: fit-content;
}
.avatar {
  width: 160px;
  height: 160px;
  border-radius: 16px; /* 方形但略带圆角 */
  object-fit: cover;
  object-position: center;
  border: 2px solid var(--border);
}
.name { margin: 14px 0 6px; font-size: 22px; }
.slogan { color: var(--muted); margin: 0 0 12px; }
.contact h3 { margin: 10px 0; font-size: 16px; color: var(--muted); }
.contact ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.contact a { color: var(--text); text-decoration: none; display: inline-flex; align-items: center; max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; word-break: keep-all; }
.contact a:hover { color: var(--accent); }
.contact .copy-tip { color: var(--muted); display: block; margin-top: 6px; }

.content {
  background: transparent;
  display: grid;
  gap: 24px;
}
section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}
h2 { margin: 0 0 10px; font-size: 20px; }
.about { color: var(--muted); line-height: 1.7; }

.info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--sidebar);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
}
.info-item .label { color: var(--muted); width: 120px; }
.info-item .value { color: var(--text); }

.resume { display: flex; gap: 12px; flex-wrap: wrap; }
/* 简历区已移除 */

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card {
  display: block;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--sidebar);
  text-decoration: none;
}
.card img { width: 100%; height: 160px; object-fit: cover; display: block; }
.card .meta { padding: 10px 12px; }
.card .title { color: var(--text); margin: 0 0 6px; }
.card .sub { color: var(--muted); margin: 0; font-size: 13px; }
.card:hover { border-color: var(--accent-2); }

.footer { text-align: center; color: var(--muted); padding: 20px; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: relative; top: 0; }
  .cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
}