/* ═══ 科创通知 · 样式 v2（质感升级 / 双主题 / 分类色系）═══ */
:root {
  --bg: #0b1020; --bg2: #111831; --panel: rgba(22, 30, 52, .82); --panel-solid: #1a2338;
  --panel2: rgba(34, 44, 72, .72); --line: rgba(255, 255, 255, .08); --line2: rgba(255, 255, 255, .16);
  --text: #eef2fb; --sub: #96a3c2; --accent: #5b8cff; --accent2: #34d399;
  --danger: #f87171; --warn: #fbbf24; --badge: #ef4444; --gold: #f5c26b;
  --shadow: 0 10px 34px rgba(0, 0, 0, .42);
  --grad: linear-gradient(135deg, #5b8cff 0%, #7c5bff 55%, #b45bff 100%);
  --glass: saturate(160%) blur(14px);
}
:root[data-theme="light"] {
  --bg: #eef2f9; --bg2: #e2e9f6; --panel: rgba(255, 255, 255, .86); --panel-solid: #ffffff;
  --panel2: rgba(240, 244, 251, .9); --line: rgba(20, 35, 70, .09); --line2: rgba(20, 35, 70, .18);
  --text: #1b2436; --sub: #5e6d8c; --accent: #3b63e0; --accent2: #0d9f6e;
  --danger: #dc2626; --warn: #b45309; --badge: #ef4444; --gold: #a9741f;
  --shadow: 0 10px 30px rgba(40, 60, 110, .14);
  --grad: linear-gradient(135deg, #3b63e0 0%, #6a3be0 55%, #a03be0 100%);
  --glass: saturate(150%) blur(14px);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scrollbar-color: var(--line2) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line2); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }
body {
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(91, 140, 255, .16), transparent 60%),
    radial-gradient(800px 420px at 90% 0%, rgba(180, 91, 255, .12), transparent 55%),
    linear-gradient(180deg, var(--bg2), var(--bg) 40%);
  background-attachment: fixed;
  color: var(--text); font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.6; min-height: 100vh;
}
#app { max-width: 780px; margin: 0 auto; padding: 18px 14px 40px; }
a { color: var(--accent); text-decoration: none; }

/* ── 顶栏 ── */
.topbar {
  position: sticky; top: 10px; z-index: 30; display: flex; align-items: center; gap: 10px;
  background: var(--panel); -webkit-backdrop-filter: var(--glass); backdrop-filter: var(--glass);
  border: 1px solid var(--line); border-radius: 16px; padding: 9px 14px; margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.logo-img { width: 36px; height: 36px; border-radius: 50%; flex: none; filter: drop-shadow(0 2px 8px rgba(91, 140, 255, .35)); }
.topbar .logo { font-weight: 800; font-size: 17px; letter-spacing: .5px; }
.topbar .sp { flex: 1; }
.pill { font-size: 12px; color: var(--sub); background: var(--panel2); border: 1px solid var(--line); padding: 3px 10px; border-radius: 999px; white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.pill.green { color: var(--accent2); }
.dot-live { width: 7px; height: 7px; border-radius: 50%; background: var(--accent2); box-shadow: 0 0 0 0 rgba(52, 211, 153, .5); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, .5); } 70% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); } 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); } }
.badge { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--badge); color: #fff; font-size: 11px; font-weight: 800; box-shadow: 0 0 0 3px rgba(239, 68, 68, .22); animation: pop .25s; }
@keyframes pop { 0% { transform: scale(.4); } 80% { transform: scale(1.15); } 100% { transform: scale(1); } }
.iconbtn { background: var(--panel2); border: 1px solid var(--line); color: var(--text); border-radius: 10px; width: 34px; height: 34px; cursor: pointer; font-size: 15px; transition: all .18s; }
.iconbtn:hover { border-color: var(--accent); transform: translateY(-1px); }

/* ── 卡片 ── */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 14px 16px; margin-bottom: 12px; -webkit-backdrop-filter: var(--glass); backdrop-filter: var(--glass); box-shadow: var(--shadow); transition: transform .18s, border-color .18s; }
.card.glow { border-color: rgba(91, 140, 255, .35); }
.card h3 { font-size: 13px; margin-bottom: 10px; color: var(--sub); font-weight: 700; letter-spacing: .4px; }
.msg { display: flex; gap: 12px; animation: rise .35s ease; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .msg { animation: none; } }
.msg:hover { border-color: var(--line2); }
.msg .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--badge); margin-top: 9px; flex: none; box-shadow: 0 0 8px rgba(239, 68, 68, .55); }
.msg.read .dot { background: transparent; border: 2px solid var(--line2); box-shadow: none; }
.msg .body { flex: 1; min-width: 0; }
.msg .meta { display: flex; gap: 8px; align-items: center; font-size: 12px; margin: 2px 0 7px; flex-wrap: wrap; }
.msg .who { font-weight: 600; color: var(--text); }
.sub { color: var(--sub); }
.msg .content { white-space: pre-wrap; word-break: break-word; font-size: 15px; }
.msg .note { margin-top: 9px; font-size: 13px; color: var(--sub); background: var(--panel2); border: 1px dashed var(--line2); border-radius: 10px; padding: 6px 11px; white-space: pre-wrap; }
.msg .actions { margin-top: 9px; display: flex; gap: 8px; flex-wrap: wrap; }
.mini { font-size: 12px; color: var(--sub); background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; padding: 4px 11px; cursor: pointer; transition: all .15s; }
.mini:hover { color: var(--text); border-color: var(--accent); }
.mini.danger:hover { color: var(--danger); border-color: var(--danger); }
.mini:disabled { opacity: .4; cursor: default; }
.empty { text-align: center; color: var(--sub); padding: 34px 0; font-size: 14px; }

/* ── 分类标签色系 ── */
.cat { display: inline-flex; align-items: center; font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px; letter-spacing: .3px; }
.cat-red { color: #ffb4b4; background: rgba(239, 68, 68, .16); border: 1px solid rgba(239, 68, 68, .4); }
.cat-orange { color: #ffd9a8; background: rgba(251, 191, 36, .14); border: 1px solid rgba(251, 191, 36, .4); }
.cat-blue { color: #bcd2ff; background: rgba(91, 140, 255, .16); border: 1px solid rgba(91, 140, 255, .4); }
.cat-purple { color: #d9c6ff; background: rgba(167, 110, 255, .16); border: 1px solid rgba(167, 110, 255, .4); }
.cat-gold { color: #ffe2ae; background: rgba(245, 194, 107, .15); border: 1px solid rgba(245, 194, 107, .4); }
.cat-slate { color: #c3cde2; background: rgba(150, 163, 194, .16); border: 1px solid rgba(150, 163, 194, .4); }
.cat-green { color: #a9ecd3; background: rgba(52, 211, 153, .15); border: 1px solid rgba(52, 211, 153, .4); }
:root[data-theme="light"] .cat-red { color: #c01f1f; background: rgba(239, 68, 68, .1); }
:root[data-theme="light"] .cat-orange { color: #a35a00; background: rgba(251, 191, 36, .14); }
:root[data-theme="light"] .cat-blue { color: #2b56c8; background: rgba(91, 140, 255, .12); }
:root[data-theme="light"] .cat-purple { color: #6a2fd0; background: rgba(167, 110, 255, .12); }
:root[data-theme="light"] .cat-gold { color: #8a5d12; background: rgba(245, 194, 107, .18); }
:root[data-theme="light"] .cat-slate { color: #55627e; background: rgba(150, 163, 194, .14); }
:root[data-theme="light"] .cat-green { color: #0a7d55; background: rgba(52, 211, 153, .14); }

/* ── 工具栏 / 筛选 ── */
.toolbar { display: flex; gap: 8px; margin-bottom: 8px; }
.search { flex: 1; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.chip { font-size: 12.5px; color: var(--sub); background: var(--panel2); border: 1px solid var(--line); border-radius: 999px; padding: 5px 14px; cursor: pointer; transition: all .15s; }
.chip:hover { color: var(--text); border-color: var(--line2); }
.chip.on { color: #fff; background: var(--grad); border-color: transparent; box-shadow: 0 4px 14px rgba(91, 90, 255, .35); }
.feed-head { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 700; color: var(--sub); margin: 4px 2px 8px; }

/* ── 表单 ── */
input, textarea, select { width: 100%; background: var(--panel2); color: var(--text); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 14px; font-family: inherit; outline: none; transition: border-color .15s, box-shadow .15s; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91, 140, 255, .15); }
textarea { resize: vertical; min-height: 92px; }
label { display: block; font-size: 13px; color: var(--sub); margin: 10px 0 4px; }
.btn { width: 100%; background: var(--grad); color: #fff; border: none; border-radius: 12px; padding: 12px; font-size: 15px; cursor: pointer; font-weight: 700; margin-top: 14px; letter-spacing: 1px; box-shadow: 0 8px 22px rgba(91, 90, 255, .32); transition: transform .15s, box-shadow .15s, filter .15s; }
.btn:hover { filter: brightness(1.07); transform: translateY(-1px); box-shadow: 0 10px 26px rgba(91, 90, 255, .42); }
.btn:active { transform: translateY(0); }
.row2 { display: flex; gap: 10px; }
.row2 > * { flex: 1; }

/* ── 登录 ── */
.auth-wrap { max-width: 440px; margin: 5vh auto 0; }
.auth-brand { background: linear-gradient(180deg, #101a33, #0b1020); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; margin-bottom: 12px; display: flex; justify-content: center; box-shadow: var(--shadow); }
:root[data-theme="light"] .auth-brand { background: linear-gradient(180deg, #f6f9ff, #e9effa); }
.auth-brand img { max-width: 100%; height: auto; }
.auth-title { font-size: 21px; letter-spacing: 1px; }
.auth-sub { color: var(--sub); font-size: 13px; margin-top: 2px; }
.auth-tabs { display: flex; background: var(--panel); -webkit-backdrop-filter: var(--glass); backdrop-filter: var(--glass); border: 1px solid var(--line); border-radius: 14px 14px 0 0; overflow: hidden; }
.auth-tabs button { flex: 1; background: transparent; border: none; color: var(--sub); padding: 12px; font-size: 14px; cursor: pointer; font-weight: 700; transition: all .15s; }
.auth-tabs button.on { background: var(--panel2); color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); }
.auth-card { background: var(--panel); -webkit-backdrop-filter: var(--glass); backdrop-filter: var(--glass); border: 1px solid var(--line); border-top: none; border-radius: 0 0 14px 14px; padding: 22px; box-shadow: var(--shadow); }
.auth-tip { margin-top: 12px; font-size: 12px; color: var(--sub); text-align: center; }
.err { color: var(--danger); font-size: 13px; margin-top: 8px; min-height: 18px; }

/* ── 折叠面板 ── */
details.panel { background: var(--panel); -webkit-backdrop-filter: var(--glass); backdrop-filter: var(--glass); border: 1px solid var(--line); border-radius: 16px; margin-bottom: 12px; box-shadow: var(--shadow); overflow: hidden; }
details.panel summary { cursor: pointer; padding: 13px 16px; font-size: 14px; font-weight: 700; list-style: none; display: flex; align-items: center; gap: 8px; transition: background .15s; }
details.panel summary::-webkit-details-marker { display: none; }
details.panel summary:hover { background: var(--panel2); }
details.panel[open] summary { border-bottom: 1px solid var(--line); }
details.panel .inner { padding: 6px 16px 16px; }
.list-item { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.list-item:last-child { border-bottom: none; }
.list-item .sp { flex: 1; }
.tag { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--panel2); border: 1px solid var(--line); color: var(--sub); }
.tag.admin { color: var(--accent2); }
.unread-tag { color: var(--badge); border-color: rgba(239, 68, 68, .45); }
.sec { font-size: 13px; color: var(--sub); margin: 14px 0 6px; font-weight: 700; }
.row3 { display: flex; gap: 10px; margin-bottom: 6px; }
.stat { flex: 1; background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 12px; text-align: center; }
.stat h3 { font-size: 12px; color: var(--sub); margin-bottom: 4px; }
.stat b { font-size: 24px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { font-size: 12px; color: var(--sub); margin-left: 2px; }
.toast { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%); background: var(--panel-solid); border: 1px solid var(--line2); color: var(--text); padding: 10px 20px; border-radius: 999px; font-size: 13px; z-index: 99; box-shadow: var(--shadow); animation: rise .3s ease; }
.footer { text-align: center; color: var(--sub); font-size: 12px; margin-top: 26px; opacity: .7; }

@media (max-width: 520px) {
  #app { padding: 10px 8px 40px; }
  .topbar { top: 6px; border-radius: 12px; }
  .row2 { flex-direction: column; gap: 0; }
  .logo-img { width: 30px; height: 30px; }
}