:root {
  --bg: #05070d;
  --bg-2: #090c15;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-2: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.08);
  --txt: #e7edf7;
  --muted: #8b96ad;
  --cyan: #4de8ff;
  --violet: #8b5cff;
  --green: #3be8b0;
  --orange: #ff6b1a;
  --pink: #ff5c8a;
  --yellow: #ffd166;
  --sans: "Space Grotesk", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --radius: 18px;
  --header-h: 64px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--txt);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(77, 232, 255, 0.35); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #1c2333; border-radius: 6px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #2a3450; }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }

a { color: inherit; text-decoration: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }

.grad-text {
  background: linear-gradient(92deg, #ffffff 0%, var(--cyan) 45%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- background ---------- */

.bg-layers {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(139, 92, 255, 0.12), transparent 60%),
    radial-gradient(1000px 500px at 10% 20%, rgba(77, 232, 255, 0.08), transparent 60%),
    var(--bg);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  animation: float 18s ease-in-out infinite alternate;
}

.orb-a { width: 420px; height: 420px; top: -120px; right: -80px; background: rgba(139, 92, 255, 0.35); }
.orb-b { width: 360px; height: 360px; top: 40%; left: -140px; background: rgba(77, 232, 255, 0.22); animation-delay: -6s; }
.orb-c { width: 300px; height: 300px; bottom: -100px; right: 25%; background: rgba(255, 92, 138, 0.16); animation-delay: -12s; }

@keyframes float {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-40px, 50px, 0) scale(1.12); }
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: rgba(5, 7, 13, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  box-shadow: 0 0 24px rgba(77, 232, 255, 0.15);
}

.brand-name {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.14em;
}

.brand-domain {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.header-right { display: flex; align-items: center; gap: 16px; }

.live-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--green);
  padding: 5px 10px;
  border: 1px solid rgba(59, 232, 176, 0.3);
  border-radius: 999px;
  background: rgba(59, 232, 176, 0.08);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: blink 1.6s ease-in-out infinite;
}

@keyframes blink { 50% { opacity: 0.25; } }

.clock { font-size: 13px; color: var(--muted); letter-spacing: 0.06em; }

.btn-refresh {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--txt);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-refresh:hover {
  border-color: rgba(77, 232, 255, 0.5);
  box-shadow: 0 0 20px rgba(77, 232, 255, 0.2);
  transform: translateY(-1px);
}

.btn-refresh.primary {
  background: linear-gradient(92deg, var(--cyan), var(--violet));
  color: #05070d;
  border: none;
}

.btn-refresh.primary:hover {
  box-shadow: 0 0 28px rgba(139, 92, 255, 0.45);
}

.btn-refresh.loading svg { animation: spin 0.8s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- ticker ---------- */

.ticker {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 12, 21, 0.75);
  padding: 9px 0;
  white-space: nowrap;
}

.ticker-track {
  display: inline-flex;
  gap: 48px;
  white-space: nowrap;
  animation: marquee 60s linear infinite;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.ticker:hover .ticker-track { animation-play-state: paused; }

.ticker-item::before {
  content: "◆";
  color: var(--cyan);
  margin-right: 12px;
  font-size: 9px;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- hero ---------- */

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 88px 28px 44px;
  text-align: center;
}

.hero-kicker {
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--cyan);
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(2.5rem, 6.4vw, 4.6rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.hero-sub {
  max-width: 640px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  min-width: 160px;
}

.stat-num {
  font-size: 26px;
  font-weight: 600;
  color: var(--cyan);
}

.stat-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

/* ---------- feed / toolbar ---------- */

.feed {
  max-width: 1320px;
  margin: 0 auto;
  padding: 12px 28px 80px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 26px;
  position: sticky;
  top: calc(var(--header-h) + 40px);
  z-index: 40;
  padding: 12px 4px;
}

.chips { display: flex; gap: 10px; flex-wrap: wrap; }

.chip {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  transition: all 0.22s ease;
}

.chip:hover { color: var(--txt); border-color: rgba(255, 255, 255, 0.22); }

.chip.active {
  color: #05070d;
  background: linear-gradient(92deg, var(--cyan), var(--violet));
  border-color: transparent;
  box-shadow: 0 0 22px rgba(77, 232, 255, 0.3);
}

.toolbar-right { display: flex; align-items: center; gap: 16px; }

#resultLabel { font-size: 11px; letter-spacing: 0.14em; }

/* ---------- grid & cards ---------- */

.grid {
  column-count: 4;
  column-gap: 18px;
}

.card {
  break-inside: avoid;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(10px);
  overflow: hidden;
  position: relative;
  transition: transform 0.32s cubic-bezier(0.2, 0.8, 0.3, 1), border-color 0.32s, box-shadow 0.32s;
  animation: cardIn 0.5s cubic-bezier(0.2, 0.8, 0.3, 1) both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(22px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(77, 232, 255, 0.4);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(77, 232, 255, 0.12), 0 0 32px rgba(139, 92, 255, 0.12);
}

.card-news { padding: 18px 18px 16px; }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.source {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--src, var(--cyan));
}

.source::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--src, var(--cyan));
  box-shadow: 0 0 8px var(--src, var(--cyan));
}

.card-time {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.card-cover {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 13px;
  background: linear-gradient(120deg, #12172a, #1a2138);
  display: block;
}

.card-title {
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}

.card-title a:hover { color: var(--cyan); }

.card-excerpt {
  margin-top: 9px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

.card-meta .host { color: var(--green); }

.arrow {
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: all 0.25s ease;
  color: var(--cyan);
}

.card:hover .arrow { opacity: 1; transform: translate(0, 0); }

/* image card */

.card-image { padding: 9px; }

.img-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(120deg, #12172a, #1a2138);
}

.img-wrap::before {
  content: "";
  display: block;
  padding-bottom: var(--ratio, 75%);
}

.img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.6s ease;
}

.img-wrap img.loaded { opacity: 1; }

.card-image:hover .img-wrap img { transform: scale(1.05); }

.img-shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.07) 50%, transparent 70%);
  background-size: 220% 100%;
  animation: shimmer 1.4s linear infinite;
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -60% 0; }
}

.img-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 34px 14px 12px;
  background: linear-gradient(transparent, rgba(3, 5, 10, 0.88));
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: #cfd8e8;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card-image:hover .img-overlay { opacity: 1; }

.img-wrap img.loaded + .img-shimmer { display: none; }

/* skeleton */

.card-skeleton { padding: 18px; }

.sk-line {
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(110deg, #12172a 30%, #1c2440 50%, #12172a 70%);
  background-size: 220% 100%;
  animation: shimmer 1.4s linear infinite;
  margin-bottom: 12px;
}

.sk-line.w40 { width: 40%; }
.sk-line.w90 { width: 90%; }
.sk-line.w70 { width: 70%; }
.sk-line.tall { height: 130px; border-radius: 12px; }

/* loader / sentinel */

.sentinel { height: 10px; }

.loader {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 36px 0 8px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.loader[hidden] { display: none; }

.loader-spin {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--cyan);
  animation: spin 0.8s linear infinite;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 64px 28px 48px;
  text-align: center;
  background: linear-gradient(rgba(9, 12, 21, 0.6), transparent);
}

.footer-domain {
  font-size: clamp(2.6rem, 9vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.footer-meta {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* ---------- toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  z-index: 100;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid rgba(255, 92, 138, 0.4);
  background: rgba(20, 8, 14, 0.92);
  color: var(--pink);
  font-size: 12px;
  letter-spacing: 0.06em;
  opacity: 0;
  transition: all 0.35s ease;
  backdrop-filter: blur(10px);
  max-width: 90vw;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast[hidden] { display: none; }

/* ---------- responsive ---------- */

@media (max-width: 1200px) {
  .grid { column-count: 3; }
}

@media (max-width: 860px) {
  .grid { column-count: 2; }
  .brand-domain { display: none; }
  .clock { display: none; }
  .toolbar { position: static; }
  .hero { padding-top: 60px; }
}

@media (max-width: 560px) {
  .grid { column-count: 1; }
  .site-header { padding: 0 16px; }
  .feed { padding-left: 16px; padding-right: 16px; }
  .hero { padding-left: 16px; padding-right: 16px; }
  .live-pill { display: none; }
  .toolbar-right #resultLabel { display: none; }
  .stat { min-width: 130px; padding: 13px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}