/* AI ROBOT NEWS prototype — TYSEM industrial editorial system */
:root {
  color-scheme: light;
  --bg: #efeee8;
  --bg-deep: #e7e5de;
  --paper: #fbfaf6;
  --paper-2: #f5f3ec;
  --ink: #17201f;
  --ink-2: #34413e;
  --muted: #68736f;
  --faint: #929b96;
  --line: rgba(23, 32, 31, .13);
  --line-strong: rgba(23, 32, 31, .24);
  --accent: #f26b0f;
  --accent-deep: #c94f05;
  --accent-soft: #fde4d0;
  --signal: #0b8f80;
  --signal-soft: #d8eee9;
  --amber: #d79a17;
  --amber-soft: #f8e8bd;
  --blue: #315c7c;
  --blue-soft: #dfeaf1;
  --danger: #bd3d2d;
  --panel-dark: #17201f;
  --panel-dark-ink: #f7f5ee;
  --shadow: 0 24px 70px -34px rgba(23, 32, 31, .36);
  --shadow-soft: 0 14px 44px -28px rgba(23, 32, 31, .3);
  --font-sans: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-display: "Bahnschrift Condensed", "DIN Condensed", "Arial Narrow", "Microsoft YaHei", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 18px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111615;
  --bg-deep: #0b0f0e;
  --paper: #171d1b;
  --paper-2: #1c2421;
  --ink: #f1f0e8;
  --ink-2: #ccd2cc;
  --muted: #98a29c;
  --faint: #66716b;
  --line: rgba(239, 238, 232, .12);
  --line-strong: rgba(239, 238, 232, .24);
  --accent: #ff7a24;
  --accent-deep: #ff9a56;
  --accent-soft: rgba(255, 122, 36, .16);
  --signal: #35c9b7;
  --signal-soft: rgba(53, 201, 183, .14);
  --amber: #e9b748;
  --amber-soft: rgba(233, 183, 72, .14);
  --blue: #72a8ce;
  --blue-soft: rgba(114, 168, 206, .14);
  --panel-dark: #0a0f0e;
  --panel-dark-ink: #f7f5ee;
  --shadow: 0 28px 80px -38px rgba(0, 0, 0, .82);
  --shadow-soft: 0 18px 52px -30px rgba(0, 0, 0, .78);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 8% 0%, rgba(242, 107, 15, .08), transparent 25rem),
    radial-gradient(circle at 94% 14%, rgba(11, 143, 128, .07), transparent 28rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .38;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }
ol, ul { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 65%, transparent); outline-offset: 3px; }

.skip-link {
  position: fixed;
  left: 14px;
  top: 14px;
  z-index: 1000;
  transform: translateY(-150%);
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
  transition: transform .2s ease;
}
.skip-link:focus { transform: none; }

.scroll-meter {
  position: fixed;
  inset: 0 0 auto;
  z-index: 999;
  height: 3px;
  background: transparent;
  pointer-events: none;
}
.scroll-meter span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #ffb15c);
  box-shadow: 0 0 14px rgba(242, 107, 15, .55);
}

.app-shell {
  width: min(1560px, calc(100% - 36px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 190px minmax(0, 780px) 292px;
  gap: 24px;
  align-items: start;
}
.main-shell { min-width: 0; }

.left-rail,
.right-rail {
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow: auto;
  scrollbar-width: none;
}
.left-rail::-webkit-scrollbar,
.right-rail::-webkit-scrollbar { display: none; }
.left-rail {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  padding: 25px 20px 22px 6px;
  border-right: 1px solid var(--line);
}
.rail-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 0 4px;
}
.rail-brand img { width: 40px; height: 40px; object-fit: contain; }
.rail-brand span { display: grid; line-height: 1; }
.rail-brand b {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: .045em;
  font-weight: 800;
}
.rail-brand em {
  margin-top: 4px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .36em;
  font-style: normal;
}
.rail-caption {
  margin: 34px 10px 9px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
}
.rail-nav { display: grid; gap: 2px; }
.rail-nav a {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--muted);
  transition: background .18s ease, color .18s ease, transform .18s ease;
}
.rail-nav a:hover { background: var(--paper); color: var(--ink); transform: translateX(2px); }
.rail-nav a.active { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-soft); }
.rail-nav a.active small { color: rgba(255,255,255,.56); }
.rail-nav svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.rail-nav span { font-size: 13.5px; font-weight: 650; }
.rail-nav small { color: var(--faint); font-family: var(--font-mono); font-size: 9px; }
.rail-status {
  margin-top: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  box-shadow: var(--shadow-soft);
}
.status-kicker,
.right-label,
.digest-kicker {
  display: block;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .16em;
}
.rail-status strong {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .035em;
}
.rail-status i,
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-soft);
}
.rail-status p { margin: 10px 0 0; color: var(--muted); font-size: 11.5px; line-height: 1.55; }
.rail-links { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 13px; }
.rail-links a {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 10.5px;
}
.rail-links a:hover { border-color: var(--line-strong); color: var(--ink); }
.rail-back { margin-top: 16px; color: var(--muted); font-size: 11.5px; }
.rail-back:hover { color: var(--accent); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 89%, transparent);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
}
.topbar-label { display: flex; align-items: center; gap: 9px; min-width: 0; }
.topbar-label > span:not(.live-dot) {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  white-space: nowrap;
}
.topbar-label small {
  padding-left: 9px;
  border-left: 1px solid var(--line-strong);
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .05em;
  white-space: nowrap;
}
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.icon-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--paper) 76%, transparent);
  color: var(--ink-2);
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}
.icon-button:hover { border-color: var(--line-strong); background: var(--paper); color: var(--ink); }
.icon-button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.icon-button span { font-size: 12px; font-weight: 650; }
.icon-button kbd {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-bottom-color: var(--line-strong);
  border-radius: 4px;
  color: var(--faint);
  background: var(--paper-2);
  font-family: var(--font-mono);
  font-size: 9px;
}
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

main { padding-bottom: 40px; }
.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 34px;
  align-items: end;
  padding: clamp(34px, 4.8vw, 56px) 0 28px;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--accent); }
.eyebrow span { color: var(--accent); font-family: var(--font-mono); }
.intro h1 {
  max-width: 760px;
  margin: 18px 0;
  font-family: var(--font-serif);
  font-size: clamp(32px, 3.7vw, 49px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.045em;
}
.intro h1 em { color: var(--accent); font-style: normal; }
.intro-copy > p { max-width: 680px; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.82; }
.intro-meta { display: flex; flex-wrap: wrap; gap: 9px 16px; margin-top: 22px; color: var(--faint); font-size: 11.5px; }
.intro-meta span { display: inline-flex; gap: 6px; align-items: center; }
.intro-meta b { color: var(--ink-2); font-weight: 700; }
.intro-brief {
  position: relative;
  overflow: hidden;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--panel-dark);
  color: var(--panel-dark-ink);
  box-shadow: var(--shadow);
}
.intro-brief::after {
  content: "01";
  position: absolute;
  right: -13px;
  bottom: -27px;
  color: rgba(255,255,255,.05);
  font-family: var(--font-display);
  font-size: 112px;
  font-weight: 800;
  line-height: 1;
}
.brief-label { position: relative; z-index: 1; color: rgba(255,255,255,.52); font-family: var(--font-mono); font-size: 9px; letter-spacing: .15em; }
.intro-brief strong { position: relative; z-index: 1; display: block; margin-top: 22px; font-family: var(--font-display); font-size: 54px; line-height: .95; }
.intro-brief p { position: relative; z-index: 1; margin: 5px 0 20px; color: rgba(255,255,255,.64); font-size: 12px; }
.intro-brief dl { position: relative; z-index: 1; display: grid; gap: 8px; margin: 0; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.14); }
.intro-brief dl div { display: flex; justify-content: space-between; gap: 10px; }
.intro-brief dt { color: rgba(255,255,255,.56); font-size: 11px; }
.intro-brief dd { margin: 0; color: #fff; font-family: var(--font-mono); font-size: 11px; }

.hero-slot { margin: 0 0 24px; }
.hero-story {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  min-height: 310px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow);
}
.hero-media { position: relative; min-height: 270px; overflow: hidden; background: var(--paper-2); }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 45%; filter: saturate(.78) contrast(1.05); transition: transform .7s cubic-bezier(.22,.61,.36,1); }
.hero-story:hover .hero-media img { transform: scale(1.035); }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(13,19,18,.68)); }
.hero-media-top { position: absolute; inset: 15px 15px auto; z-index: 1; display: flex; justify-content: space-between; align-items: flex-start; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 9px;
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 999px;
  background: rgba(16,22,21,.48);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .08em;
  backdrop-filter: blur(8px);
}
.hero-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero-media-caption { position: absolute; left: 18px; right: 18px; bottom: 17px; z-index: 1; color: #fff; }
.hero-media-caption span { display: block; color: rgba(255,255,255,.66); font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; }
.hero-media-caption b { display: block; margin-top: 5px; font-family: var(--font-serif); font-size: 20px; line-height: 1.35; }
.hero-body { display: flex; flex-direction: column; padding: 24px 22px 20px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--faint); font-size: 11px; }
.hero-meta .source { color: var(--ink-2); font-weight: 700; }
.hero-body h2 { margin: 18px 0 13px; font-family: var(--font-serif); font-size: clamp(23px, 2.2vw, 32px); line-height: 1.28; letter-spacing: -.03em; }
.hero-body h2 a:hover { color: var(--accent); }
.hero-summary { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.78; }
.hero-reason { margin-top: 18px; padding: 12px 13px; border-left: 3px solid var(--accent); background: var(--accent-soft); color: var(--ink-2); font-size: 12px; line-height: 1.72; }
.hero-reason b { color: var(--accent-deep); }
.hero-actions { display: flex; align-items: center; gap: 9px; margin-top: auto; padding-top: 18px; }
.text-link { display: inline-flex; align-items: center; gap: 5px; color: var(--accent-deep); font-size: 12px; font-weight: 750; }
.text-link:hover { color: var(--accent); }
.ghost-link { margin-left: auto; color: var(--muted); font-size: 11.5px; }
.ghost-link:hover { color: var(--ink); }

.signal-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0 0 48px; border: 1px solid var(--line); border-radius: var(--radius); background: color-mix(in srgb, var(--paper) 82%, transparent); }
.signal-cell { position: relative; padding: 16px 16px 14px; }
.signal-cell + .signal-cell { border-left: 1px solid var(--line); }
.signal-cell span { display: block; color: var(--muted); font-size: 11px; }
.signal-cell strong { display: block; margin-top: 3px; font-family: var(--font-display); font-size: 28px; line-height: 1; }
.signal-cell small { display: block; margin-top: 5px; color: var(--faint); font-family: var(--font-mono); font-size: 8px; letter-spacing: .1em; }
.signal-cell:nth-child(2) strong { color: var(--signal); }
.signal-cell:nth-child(3) strong { color: var(--accent); }
.signal-cell:nth-child(4) strong { color: var(--blue); }

.section-heading { display: flex; justify-content: space-between; gap: 20px; align-items: end; }
.section-kicker { color: var(--accent); font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; }
.section-heading h2 { margin: 7px 0 0; font-family: var(--font-serif); font-size: clamp(24px, 2.5vw, 34px); line-height: 1.3; letter-spacing: -.025em; }
.section-note { max-width: 180px; color: var(--faint); font-size: 10.5px; text-align: right; }
.filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin: 22px 0 6px; padding: 9px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.filter-tabs { display: flex; gap: 5px; overflow-x: auto; scrollbar-width: none; }
.filter-tabs::-webkit-scrollbar { display: none; }
.filter-tabs button { flex: none; padding: 6px 10px; border: 1px solid transparent; border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; font-size: 11.5px; transition: .18s ease; }
.filter-tabs button:hover { color: var(--ink); background: var(--paper); }
.filter-tabs button.active { border-color: var(--line-strong); background: var(--ink); color: var(--paper); font-weight: 700; }
.feed-count { flex: none; color: var(--faint); font-family: var(--font-mono); font-size: 10px; }

.feed-list { min-height: 160px; }
.feed-day + .feed-day { margin-top: 26px; }
.day-header { position: sticky; top: 64px; z-index: 8; display: flex; align-items: baseline; gap: 10px; padding: 16px 0 9px; background: linear-gradient(to bottom, var(--bg) 72%, transparent); }
.day-header b { font-family: var(--font-display); font-size: 21px; letter-spacing: .02em; }
.day-header span { color: var(--faint); font-family: var(--font-mono); font-size: 10px; }
.day-header em { margin-left: auto; color: var(--faint); font-style: normal; font-size: 10.5px; }
.news-item { position: relative; display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 15px; padding: 20px 0 22px; border-top: 1px solid var(--line); }
.news-item::after { content: ""; position: absolute; top: 26px; left: 52px; width: 7px; height: 7px; border: 2px solid var(--bg); border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.news-time { padding-top: 4px; color: var(--faint); font-family: var(--font-mono); font-size: 11px; font-weight: 650; }
.news-content { min-width: 0; }
.news-topline { display: flex; align-items: center; gap: 7px; min-width: 0; flex-wrap: wrap; }
.news-source { color: var(--ink-2); font-size: 11.5px; font-weight: 750; }
.news-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--faint); }
.news-category { color: var(--muted); font-size: 11px; }
.news-score { margin-left: auto; color: var(--faint); font-family: var(--font-mono); font-size: 10px; }
.news-score b { color: var(--accent); font-size: 12px; }
.news-title { margin: 8px 0 7px; font-family: var(--font-serif); font-size: 19px; line-height: 1.4; letter-spacing: -.022em; }
.news-title a { background-image: linear-gradient(var(--accent), var(--accent)); background-repeat: no-repeat; background-position: 0 100%; background-size: 0 2px; transition: background-size .26s ease, color .18s ease; }
.news-title a:hover { color: var(--accent-deep); background-size: 100% 2px; }
.news-summary { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.75; }
.news-reason { margin: 12px 0 0; padding: 10px 12px; border-left: 2px solid var(--signal); background: var(--signal-soft); color: var(--ink-2); font-size: 11.5px; line-height: 1.7; }
.news-reason b { color: var(--signal); }
.news-bottom { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 13px; }
.tag { padding: 4px 7px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 10px; }
.tag.evidence { border-color: color-mix(in srgb, var(--blue) 30%, var(--line)); color: var(--blue); font-family: var(--font-mono); }
.tag.signal { border-color: color-mix(in srgb, var(--signal) 28%, var(--line)); color: var(--signal); }
.news-link { margin-left: auto; color: var(--accent-deep); font-size: 11.5px; font-weight: 750; }
.news-link:hover { color: var(--accent); }
.bookmark { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--faint); cursor: pointer; transition: .18s ease; }
.bookmark:hover { border-color: var(--accent); color: var(--accent); transform: rotate(-8deg); }
.bookmark.saved { border-color: var(--accent); background: var(--accent); color: #fff; }
.bookmark svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.empty-state { padding: 48px 20px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--muted); text-align: center; }
.load-wrap { padding-top: 22px; text-align: center; }
.load-more { padding: 9px 14px; border: 1px solid var(--line-strong); border-radius: 999px; background: transparent; color: var(--ink-2); cursor: pointer; font-size: 11.5px; }
.load-more:hover { border-color: var(--accent); color: var(--accent); }
.load-more span { margin-left: 5px; color: var(--accent); }
.load-more[hidden] { display: none; }

.digest-card { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(180px, .8fr) auto; gap: 20px; align-items: center; margin-top: 44px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(120deg, var(--paper-2), var(--paper)); box-shadow: var(--shadow-soft); }
.digest-card h2 { margin: 7px 0 0; font-family: var(--font-serif); font-size: 23px; line-height: 1.4; }
.digest-card p { margin: 0; color: var(--muted); font-size: 12px; }
.digest-card a { color: var(--accent-deep); font-size: 12px; font-weight: 750; white-space: nowrap; }
.digest-card a:hover { color: var(--accent); }

.page-footer { display: flex; justify-content: space-between; gap: 18px; padding: 32px 0 48px; border-top: 1px solid var(--line); color: var(--faint); font-size: 11px; }
.page-footer b { display: block; color: var(--ink-2); font-family: var(--font-display); letter-spacing: .06em; }
.page-footer nav { display: flex; flex-wrap: wrap; gap: 14px; }
.page-footer a:hover { color: var(--accent); }

.right-rail { display: grid; gap: 14px; padding: 2px 0 32px; }
.right-card { padding: 17px; border: 1px solid var(--line); border-radius: var(--radius); background: color-mix(in srgb, var(--paper) 82%, transparent); }
.right-card-head { display: flex; justify-content: space-between; gap: 12px; align-items: start; }
.right-card-head span:first-child { color: var(--faint); font-family: var(--font-mono); font-size: 9px; letter-spacing: .14em; }
.right-card h2 { margin: 6px 0 0; font-family: var(--font-serif); font-size: 19px; line-height: 1.35; }
.tiny-live { color: var(--signal); font-family: var(--font-mono); font-size: 9px; }
.hot-questions ol { display: grid; gap: 0; margin-top: 12px; }
.hot-questions li { display: grid; grid-template-columns: 24px 1fr auto; gap: 7px; align-items: start; padding: 10px 0; border-top: 1px solid var(--line); }
.hot-questions li:first-child { border-top: 0; }
.rank { color: var(--faint); font-family: var(--font-mono); font-size: 10px; }
.hot-questions a { color: var(--ink-2); font-size: 12px; line-height: 1.55; }
.hot-questions a:hover { color: var(--accent); }
.hot-questions .trend { color: var(--signal); font-family: var(--font-mono); font-size: 9px; }
.hot-questions .trend.up { color: var(--accent); }
.topic-cloud { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.topic-cloud a { padding: 7px 8px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); font-size: 10.5px; transition: .18s ease; }
.topic-cloud a:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.topic-cloud b { margin-left: 4px; color: var(--faint); font-family: var(--font-mono); font-size: 9px; }
.quick-select { background: var(--panel-dark); color: var(--panel-dark-ink); border-color: transparent; box-shadow: var(--shadow); }
.quick-select .right-label { color: rgba(255,255,255,.48); }
.quick-select h2 { color: #fff; font-size: 21px; }
.quick-select p { margin: 11px 0 18px; color: rgba(255,255,255,.66); font-size: 11.5px; line-height: 1.7; }
.quick-link { display: flex; justify-content: space-between; align-items: center; padding: 10px 11px; border: 1px solid rgba(255,255,255,.28); border-radius: 7px; color: #fff; font-size: 11.5px; font-weight: 750; }
.quick-link:hover { border-color: var(--accent); background: var(--accent); }
.source-steps { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 13px; color: var(--muted); font-size: 10.5px; }
.source-steps i { width: 12px; height: 1px; background: var(--line-strong); }

.mobile-nav { display: none; }
.search-overlay[hidden] { display: none; }
.search-overlay { position: fixed; inset: 0; z-index: 500; display: grid; place-items: start center; padding: min(13vh, 110px) 18px 18px; }
.search-backdrop { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: rgba(14, 18, 17, .68); backdrop-filter: blur(7px); cursor: default; }
.search-panel { position: relative; width: min(680px, 100%); max-height: min(720px, 78vh); overflow: auto; padding: 18px; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--paper); box-shadow: 0 30px 100px rgba(0,0,0,.28); }
.search-panel-head { display: flex; align-items: center; gap: 9px; }
.search-panel-head label { font-weight: 750; }
.search-icon { width: 14px; height: 14px; border: 1.5px solid var(--accent); border-radius: 50%; position: relative; }
.search-icon::after { content: ""; position: absolute; width: 6px; height: 1.5px; background: var(--accent); transform: rotate(45deg); right: -5px; bottom: -2px; }
.search-panel-head button { margin-left: auto; padding: 3px 6px; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: var(--faint); cursor: pointer; font-family: var(--font-mono); font-size: 9px; }
#searchInput { width: 100%; margin-top: 16px; padding: 12px 13px; border: 1px solid var(--line-strong); border-radius: 7px; background: var(--bg); color: var(--ink); outline: none; font-size: 15px; }
#searchInput:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.search-hints { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; color: var(--faint); font-size: 10.5px; }
.search-hints button { padding: 3px 7px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; font-size: 10.5px; }
.search-hints button:hover { color: var(--accent); border-color: var(--accent); }
.search-results { display: grid; gap: 0; margin-top: 14px; }
.search-result { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.search-result a { font-weight: 700; }
.search-result a:hover { color: var(--accent); }
.search-result p { margin: 4px 0 0; color: var(--muted); font-size: 11.5px; }
.search-result time { color: var(--faint); font-family: var(--font-mono); font-size: 10px; white-space: nowrap; }
.search-empty { padding: 30px 0 20px; color: var(--muted); text-align: center; font-size: 12px; }

@media (max-width: 1320px) {
  .app-shell { grid-template-columns: 206px minmax(0, 1fr); }
  .right-rail { display: none; }
  .main-shell { max-width: 920px; }
}
@media (max-width: 920px) {
  .app-shell { display: block; width: min(100% - 28px, 760px); }
  .left-rail { display: none; }
  .topbar { min-height: 58px; }
  .topbar-label > span:not(.live-dot) { font-size: 11px; }
  .topbar-label small { display: none; }
  .intro { grid-template-columns: 1fr; gap: 24px; padding-top: 42px; }
  .intro-brief { display: grid; grid-template-columns: auto 1fr; column-gap: 14px; align-items: end; }
  .intro-brief .brief-label { grid-column: 1 / -1; }
  .intro-brief strong { margin-top: 14px; font-size: 42px; }
  .intro-brief p { margin: 0 0 3px; }
  .intro-brief dl { grid-column: 1 / -1; margin-top: 15px; }
  .hero-story { grid-template-columns: 1fr; }
  .hero-media { min-height: 240px; max-height: 330px; }
  .hero-body { padding: 20px; }
  .hero-actions { padding-top: 15px; }
  .signal-strip { grid-template-columns: repeat(2, 1fr); margin-bottom: 34px; }
  .signal-cell:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .signal-cell:nth-child(4) { border-top: 1px solid var(--line); }
  .digest-card { grid-template-columns: 1fr; }
  .page-footer { padding-bottom: 82px; }
  .mobile-nav { position: fixed; inset: auto 0 0; z-index: 60; display: grid; grid-template-columns: repeat(4, 1fr); height: calc(61px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); border-top: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
  .mobile-nav a, .mobile-nav button { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; border: 0; background: transparent; color: var(--faint); cursor: pointer; font-size: 9.5px; }
  .mobile-nav a.active { color: var(--accent); }
  .mobile-nav svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
}
@media (max-width: 560px) {
  .app-shell { width: min(100% - 22px, 760px); }
  .topbar-actions .search-button kbd, .topbar-actions .search-button span, .topbar-actions .theme-button span { display: none; }
  .icon-button { min-width: 38px; justify-content: center; padding: 0 9px; }
  .intro h1 { font-size: 35px; }
  .section-heading { display: block; }
  .section-note { margin-top: 8px; text-align: left; }
  .filter-bar { align-items: flex-start; flex-direction: column; gap: 8px; }
  .filter-tabs { width: 100%; }
  .feed-count { align-self: flex-end; }
  .day-header { top: 58px; }
  .news-item { grid-template-columns: 1fr; gap: 7px; padding: 17px 0 20px 15px; }
  .news-item::after { left: 3px; top: 22px; }
  .news-time { padding: 0; }
  .news-score { margin-left: 0; }
  .news-title { font-size: 19px; }
  .news-link { margin-left: 0; }
  .hero-media { min-height: 210px; }
  .hero-body h2 { font-size: 25px; }
  .intro-brief { padding: 17px; }
  .page-footer { display: block; }
  .page-footer nav { margin-top: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}