/* ══════════════════════════════════════════════════════════
   热点情报站 · 终端风样式
   深空蓝黑 + 电光蓝 + 金色；移动端优先适配
   ══════════════════════════════════════════════════════════ */
:root {
  --bg: #070b12;
  --bg2: #0a1019;
  --panel: #0d1420;
  --panel2: #121c2b;
  --line: #1d2a3e;
  --line2: #26374f;
  --text: #e6edf7;
  --dim: #7d8da6;
  --dim2: #55637a;
  --blue: #38bdf8;
  --blue-d: #1d4ed8;
  --gold: #f5b942;
  --red: #f87171;
  --green: #34d399;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.6;
}

body {
  background-image:
    radial-gradient(circle at 12% -8%, rgba(56, 189, 248, .09), transparent 42%),
    radial-gradient(circle at 88% 4%, rgba(245, 185, 66, .05), transparent 38%);
  min-height: 100vh;
}

.hidden { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ══════════ 登录层 ══════════ */
.login-layer {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 30%, rgba(29, 78, 216, .16), transparent 55%),
    var(--bg);
}
.login-box {
  width: 100%; max-width: 380px;
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line2);
  border-radius: 14px;
  padding: 30px 26px 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .55), inset 0 1px 0 rgba(255, 255, 255, .04);
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.brand-mark {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--blue);
  background: rgba(56, 189, 248, .09);
  border: 1px solid rgba(56, 189, 248, .3);
  border-radius: 11px;
  text-shadow: 0 0 14px rgba(56, 189, 248, .6);
}
.brand-text h1 { font-size: 19px; font-weight: 600; letter-spacing: .5px; }
.brand-text p { font-family: var(--mono); font-size: 10px; color: var(--dim2); letter-spacing: 1.4px; margin-top: 2px; }

.login-form { display: flex; flex-direction: column; gap: 15px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field-label { font-family: var(--mono); font-size: 10px; color: var(--dim2); letter-spacing: 1.2px; }
.field input {
  width: 100%; padding: 11px 13px;
  background: rgba(0, 0, 0, .35);
  border: 1px solid var(--line2); border-radius: 8px;
  color: var(--text); font-size: 15px; outline: none;
  transition: border-color .18s, box-shadow .18s;
}
.field input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, .12);
}
.field input::placeholder { color: var(--dim2); }

.login-err {
  min-height: 18px; font-size: 13px; color: var(--red);
  font-family: var(--mono); letter-spacing: .3px;
}
.btn-primary {
  padding: 12px; border: none; border-radius: 8px;
  background: linear-gradient(180deg, #2b7fd4, var(--blue-d));
  color: #fff; font-size: 15px; font-weight: 600; letter-spacing: 3px;
  box-shadow: 0 4px 16px rgba(29, 78, 216, .3);
  transition: filter .18s, transform .1s;
}
.btn-primary:hover { filter: brightness(1.12); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }

.login-foot {
  margin-top: 20px; padding-top: 14px;
  border-top: 1px solid var(--line);
  text-align: center; font-size: 11px; color: var(--dim2);
  font-family: var(--mono); letter-spacing: .8px;
}

/* ══════════ 主体 ══════════ */
.app-layer { display: flex; flex-direction: column; min-height: 100vh; }

.termbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 0 18px; height: 52px;
  background: rgba(10, 16, 25, .93);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.term-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.dots { display: flex; gap: 5px; }
.dots i { width: 9px; height: 9px; border-radius: 50%; display: block; }
.dots i:nth-child(1) { background: #ff5f57; }
.dots i:nth-child(2) { background: #febc2e; }
.dots i:nth-child(3) { background: #28c840; }
.term-title { font-size: 15px; font-weight: 600; letter-spacing: .5px; white-space: nowrap; }

.term-right { display: flex; align-items: center; gap: 10px; }
.live {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 1.2px;
  color: var(--green); white-space: nowrap;
}
.live i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
.clock { font-family: var(--mono); font-size: 11px; color: var(--dim2); white-space: nowrap; }
.term-btn {
  padding: 6px 12px; font-size: 12px;
  background: rgba(56, 189, 248, .08);
  border: 1px solid rgba(56, 189, 248, .28);
  border-radius: 7px; color: var(--blue);
  transition: background .18s; white-space: nowrap;
}
.term-btn:hover { background: rgba(56, 189, 248, .18); }
.term-btn:disabled { opacity: .5; cursor: not-allowed; }
.term-btn.ghost {
  background: transparent; border-color: var(--line2); color: var(--dim);
}
.term-btn.ghost:hover { background: rgba(255, 255, 255, .05); color: var(--text); }

.main {
  flex: 1; width: 100%; max-width: 1080px; margin: 0 auto;
  padding: 18px 18px 40px;
  display: flex; flex-direction: column; gap: 14px;
}

/* ── 卡片 ── */
.card {
  background: linear-gradient(180deg, rgba(18, 28, 43, .5), var(--panel));
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; gap: 9px;
  padding: 11px 15px;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, .22);
}
.card-head .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue); box-shadow: 0 0 8px var(--blue); flex: 0 0 6px;
}
.card-head .t {
  font-family: var(--mono); font-size: 11px; letter-spacing: 1px;
  color: var(--blue); flex: 1; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.card-head .tag {
  font-family: var(--mono); font-size: 10px; color: var(--dim2);
  padding: 2px 7px; border: 1px solid var(--line2); border-radius: 4px;
  white-space: nowrap;
}

/* ── 统计 ── */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.stat {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 13px 15px;
}
.stat .k {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .9px;
  color: var(--dim2); margin-bottom: 5px;
}
.stat .v { font-size: 22px; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }

/* ── 话题榜 ── */
.chips {
  display: flex; flex-wrap: wrap; gap: 8px; padding: 13px 15px;
}
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 11px; font-size: 13px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid var(--line2); border-radius: 20px;
  color: var(--text); transition: all .18s; white-space: nowrap;
}
.chip:hover { border-color: var(--blue); background: rgba(56, 189, 248, .1); }
.chip.active {
  background: rgba(56, 189, 248, .18); border-color: var(--blue);
  color: var(--blue); box-shadow: 0 0 0 1px rgba(56, 189, 248, .25);
}
.chip .rk {
  font-family: var(--mono); font-size: 10px; font-weight: 700;
  width: 16px; height: 16px; border-radius: 4px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, .07); color: var(--dim);
}
.chip .rk.r1 { background: var(--gold); color: #1a1200; }
.chip .rk.r2 { background: #c7d2e0; color: #1a1200; }
.chip .rk.r3 { background: #cd7f32; color: #1a1200; }
.chip .cnt {
  font-family: var(--mono); font-size: 10px; color: var(--dim2);
  padding-left: 4px; border-left: 1px solid var(--line2);
}

/* ── 工具栏 ── */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.search {
  flex: 1; min-width: 170px; position: relative;
  display: flex; align-items: center;
}
.search .s-ico {
  position: absolute; left: 11px; color: var(--dim2); font-size: 15px;
}
.search input {
  width: 100%; padding: 9px 13px 9px 32px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; color: var(--text); font-size: 13.5px; outline: none;
  transition: border-color .18s;
}
.search input:focus { border-color: var(--blue); }
.search input::placeholder { color: var(--dim2); }

.range-switch {
  display: flex; background: var(--panel);
  border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.range-switch button {
  padding: 9px 13px; border: none; background: transparent;
  color: var(--dim); font-size: 13px; transition: all .18s;
  border-right: 1px solid var(--line);
}
.range-switch button:last-child { border-right: none; }
.range-switch button:hover { color: var(--text); background: rgba(255, 255, 255, .03); }
.range-switch button.on { background: rgba(56, 189, 248, .16); color: var(--blue); font-weight: 600; }

.chk {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; color: var(--dim); cursor: pointer; white-space: nowrap;
}
.chk input { accent-color: var(--blue); width: 14px; height: 14px; }

/* ── 情报流 ── */
.feed { display: flex; flex-direction: column; }
.item {
  padding: 14px 15px; border-bottom: 1px solid var(--line);
  transition: background .16s;
}
.item:last-child { border-bottom: none; }
.item:hover { background: rgba(56, 189, 248, .035); }
.item.read { opacity: .55; }
.item.star { background: rgba(245, 185, 66, .05); box-shadow: inset 3px 0 0 var(--gold); }

.item-meta { display: flex; align-items: center; gap: 7px; margin-bottom: 7px; flex-wrap: wrap; }
.pill {
  font-family: var(--mono); font-size: 10px; padding: 2px 7px;
  border-radius: 4px; letter-spacing: .5px; white-space: nowrap;
}
.pill.plat-douyin { background: rgba(254, 44, 85, .14); color: #ff6b81; }
.pill.plat-weibo { background: rgba(230, 22, 45, .14); color: #ff7a8a; }
.pill.plat-xiaohongshu { background: rgba(255, 36, 66, .14); color: #ff8a9b; }
.pill.plat-zhihu { background: rgba(0, 132, 255, .14); color: #63b3ff; }
.pill.plat-sogou_wechat, .pill.plat-wechat { background: rgba(7, 193, 96, .14); color: #4ade80; }
.pill.plat-baidu, .pill.plat-bing, .pill.plat-360 { background: rgba(139, 92, 246, .14); color: #a78bfa; }
.pill.plat-unknown { background: rgba(148, 163, 184, .12); color: var(--dim); }
.pill.kw {
  background: rgba(56, 189, 248, .11); color: var(--blue);
  border: 1px solid rgba(56, 189, 248, .2);
}
.item-time {
  margin-left: auto; font-family: var(--mono); font-size: 10.5px; color: var(--dim2);
  white-space: nowrap;
}

.item-title {
  font-size: 15px; font-weight: 550; line-height: 1.5;
  color: var(--text); margin-bottom: 5px; word-break: break-word;
}
.item-title:hover { color: var(--blue); }
.item-sum {
  font-size: 12.5px; color: var(--dim); line-height: 1.6;
  padding: 7px 10px; margin-bottom: 7px;
  background: rgba(0, 0, 0, .25); border-left: 2px solid var(--line2);
  border-radius: 0 5px 5px 0; word-break: break-word;
}
.item-sum::before {
  content: "AI "; font-family: var(--mono); font-size: 9px;
  color: var(--gold); letter-spacing: 1px;
}
.item-snippet {
  font-size: 12.5px; color: var(--dim2); line-height: 1.6;
  margin-bottom: 8px; word-break: break-word;
}
.item-acts { display: flex; gap: 8px; flex-wrap: wrap; }
.act {
  font-size: 11.5px; padding: 4px 10px; border-radius: 6px;
  background: transparent; border: 1px solid var(--line2);
  color: var(--dim); transition: all .16s;
}
.act:hover { border-color: var(--blue); color: var(--blue); }
.act.on-star { background: rgba(245, 185, 66, .12); border-color: var(--gold); color: var(--gold); }
.act.on-ignore { background: rgba(248, 113, 113, .1); border-color: var(--red); color: var(--red); }
.act.on-read { background: rgba(52, 211, 153, .1); border-color: var(--green); color: var(--green); }

/* ── 空态 / 加载更多 ── */
.empty { padding: 52px 20px; text-align: center; }
.empty-ico { font-size: 38px; color: var(--line2); margin-bottom: 12px; }
.empty-t { font-size: 14.5px; color: var(--dim); margin-bottom: 6px; }
.empty-s { font-size: 12.5px; color: var(--dim2); }
.load-more { padding: 14px; text-align: center; border-top: 1px solid var(--line); }

/* ── 简报 ── */
.brief-body { padding: 15px; }
.brief-hl {
  display: flex; gap: 10px; padding: 11px 13px; margin-bottom: 13px;
  background: rgba(245, 185, 66, .07);
  border-left: 2px solid var(--gold); border-radius: 0 6px 6px 0;
}
.brief-hl .lab {
  font-family: var(--mono); font-size: 10px; color: var(--gold);
  letter-spacing: 1px; flex: 0 0 auto; padding-top: 2px;
}
.brief-hl .txt { font-size: 14px; line-height: 1.65; }
.brief-sub {
  font-family: var(--mono); font-size: 10.5px; color: var(--dim2);
  letter-spacing: .9px; margin: 15px 0 9px;
  display: flex; align-items: center; gap: 8px;
}
.brief-sub::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.news-item { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.news-item:last-child { border-bottom: none; }
.news-item .rank {
  font-family: var(--mono); font-size: 11px; color: var(--dim2); padding-top: 2px;
}
.news-title { font-size: 13.5px; line-height: 1.55; }
.news-src {
  font-family: var(--mono); font-size: 9.5px; color: var(--dim2);
  margin-left: 7px; padding: 1px 5px; border: 1px solid var(--line2); border-radius: 3px;
}
.news-detail { font-size: 12px; color: var(--dim2); margin-top: 3px; line-height: 1.55; }
.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.cat {
  background: rgba(0, 0, 0, .22); border: 1px solid var(--line);
  border-radius: 8px; padding: 11px 12px;
}
.cat-name {
  font-size: 12.5px; font-weight: 600; color: var(--blue);
  margin-bottom: 7px; padding-bottom: 6px; border-bottom: 1px solid var(--line);
}
.cat-item { padding: 5px 0; }
.cat-title { font-size: 12.5px; line-height: 1.55; }
.cat-detail { font-size: 11.5px; color: var(--dim2); margin-top: 2px; line-height: 1.5; }
.trend {
  display: flex; gap: 10px; margin-top: 13px; padding: 11px 13px;
  background: rgba(56, 189, 248, .06); border-left: 2px solid var(--blue);
  border-radius: 0 6px 6px 0;
}
.trend .lab {
  font-family: var(--mono); font-size: 10px; color: var(--blue);
  letter-spacing: 1px; flex: 0 0 auto; padding-top: 2px;
}
.trend .txt { font-size: 13px; line-height: 1.65; color: var(--dim); }

/* ── 页脚 / 提示 ── */
.foot {
  padding: 16px; text-align: center;
  font-family: var(--mono); font-size: 10.5px; color: var(--dim2);
  border-top: 1px solid var(--line); line-height: 1.7;
}
.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%) translateY(20px);
  padding: 10px 20px; border-radius: 8px;
  background: rgba(18, 28, 43, .97); border: 1px solid var(--line2);
  color: var(--text); font-size: 13.5px;
  opacity: 0; pointer-events: none; transition: all .25s; z-index: 200;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .5);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ══════════ 移动端适配 ══════════ */
@media (max-width: 680px) {
  html, body { font-size: 14.5px; }
  .main { padding: 12px 12px 32px; gap: 11px; }

  .termbar { padding: 0 12px; height: 48px; }
  .term-title { font-size: 14px; }
  .clock { display: none; }
  .term-btn { padding: 5px 10px; font-size: 11.5px; }

  .stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .stat { padding: 11px 13px; }
  .stat .v { font-size: 19px; }

  /* 话题 chips 横向滑动，避免堆高 */
  .chips {
    flex-wrap: nowrap; overflow-x: auto; padding: 11px 12px;
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
  }
  .chips::-webkit-scrollbar { display: none; }

  .toolbar { gap: 8px; }
  .search { min-width: 100%; order: 1; }
  .range-switch { order: 2; flex: 1; }
  .range-switch button { flex: 1; padding: 8px 4px; text-align: center; }
  .chk { order: 3; }

  .item { padding: 12px; }
  .item-title { font-size: 14.5px; }
  .item-acts { gap: 6px; }
  .act { padding: 4px 9px; font-size: 11px; }

  .cat-grid { grid-template-columns: 1fr; }
  .login-box { padding: 26px 20px 18px; }
  .login-layer { align-items: flex-start; padding-top: 12vh; }
}

@media (max-width: 380px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat .v { font-size: 17px; }
}