:root {
  --bg: #101217;
  --bg-deep: #0b0d11;
  --surface: #171a21;
  --surface-raised: #1d212a;
  --surface-soft: rgba(255, 255, 255, 0.045);
  --line: rgba(242, 237, 226, 0.14);
  --line-strong: rgba(242, 237, 226, 0.3);
  --text: #f2ede2;
  --text-soft: #b5b4b2;
  --text-faint: #7d818b;
  --acid: #d9ff68;
  --acid-dark: #243116;
  --violet: #b7a6ff;
  --orange: #ff9d62;
  --blue: #8bd5ff;
  --serif: Georgia, "Songti SC", "STSong", serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --shell: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 88% 8%, rgba(183, 166, 255, 0.1), transparent 25rem),
    radial-gradient(circle at 10% 56%, rgba(217, 255, 104, 0.04), transparent 30rem),
    var(--bg);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: var(--bg);
  background: var(--acid);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.ambient {
  position: absolute;
  z-index: -1;
  width: 1px;
  height: 1px;
  box-shadow: 0 0 120px 100px rgba(217, 255, 104, 0.05);
  pointer-events: none;
}

.ambient-one { top: 18rem; left: 7%; }
.ambient-two { top: 80rem; right: 10%; box-shadow: 0 0 140px 120px rgba(183, 166, 255, 0.04); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--bg);
  background: var(--acid);
}

.brand-mark svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 2.4; }
.brand-name { display: block; font-size: 15px; font-weight: 700; letter-spacing: 0.02em; }
.brand-subtitle { display: block; margin-top: 1px; color: var(--text-faint); font-size: 9px; font-weight: 700; letter-spacing: 0.18em; }
.header-meta { display: flex; align-items: center; gap: 8px; color: var(--text-faint); font-size: 11px; letter-spacing: 0.04em; }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 4px rgba(217, 255, 104, 0.08); }

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 64px;
  align-items: end;
  padding: 82px 0 92px;
}

.eyebrow, .edition-label, .section-index, .filter-label, .section-hint, .brief-number, .brief-time, .tag, .footer-version {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 23px; color: var(--acid); }
.eyebrow-line { display: inline-block; width: 26px; height: 1px; background: var(--acid); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 720px; margin-bottom: 24px; font-size: clamp(3rem, 7.2vw, 6.5rem); font-weight: 500; letter-spacing: -0.075em; line-height: 0.95; }
h1 em { color: var(--acid); font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.08em; }
.masthead-description { max-width: 480px; margin-bottom: 0; color: var(--text-soft); font-size: 15px; line-height: 1.7; }

.edition-card {
  display: grid;
  gap: 8px;
  padding: 18px 0 18px 20px;
  border-left: 1px solid var(--acid);
}
.edition-label { color: var(--text-faint); }
.edition-card strong { font-family: var(--serif); font-size: 29px; font-weight: 400; letter-spacing: -0.04em; }
.edition-card > span:not(.edition-rule):last-child { color: var(--text-soft); font-size: 12px; }
.edition-rule { width: 100%; height: 1px; margin: 3px 0 2px; background: var(--line); }
.edition-note { color: var(--text-soft); font-size: 11px; }

.date-section, .filters-section, .guide-section, .briefs-section { border-top: 1px solid var(--line); }
.date-section, .filters-section { padding: 28px 0 34px; }
.guide-section, .briefs-section { padding: 42px 0 0; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 25px; }
.compact-heading { margin-bottom: 20px; }
.section-heading > div { display: flex; align-items: baseline; gap: 14px; }
.section-index { color: var(--acid); }
h2 { margin-bottom: 0; font-size: 15px; font-weight: 700; letter-spacing: 0.02em; }
.section-hint { color: var(--text-faint); letter-spacing: 0.08em; text-transform: none; }

.date-switcher { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-width: 650px; }
.date-button, .filter-button, .text-button { cursor: pointer; transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease; }
.date-button {
  display: grid;
  min-height: 66px;
  padding: 12px 15px;
  color: var(--text-soft);
  text-align: left;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}
.date-button:hover, .date-button:focus-visible { border-color: var(--line-strong); color: var(--text); }
.date-button.is-active { color: var(--bg); background: var(--acid); border-color: var(--acid); }
.date-label { font-size: 12px; font-weight: 700; }
.date-value { margin-top: 3px; font-family: var(--serif); font-size: 15px; }
.date-count { margin-top: auto; font-size: 10px; opacity: 0.7; }

.filters-section { display: block; padding: 16px 0 20px; }
.filters-section .section-heading { align-items: center; margin-bottom: 8px; }
.filter-controls { display: grid; gap: 6px; }
.filter-group { display: grid; grid-template-columns: 86px minmax(0, 1fr); align-items: center; gap: 10px; }
.filter-label { font-size: 11px; white-space: nowrap; color: var(--text-faint); line-height: 1.2; letter-spacing: 0.08em; text-transform: none; }
.chip-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  min-width: 0;
  overflow-x: auto;
  padding: 3px 2px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.chip-row::-webkit-scrollbar { display: none; }
.filter-button {
  flex: 0 0 auto;
  white-space: nowrap;
  min-height: 34px;
  padding: 6px 12px;
  color: var(--text-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  touch-action: manipulation;
}
.filter-button:hover, .filter-button:focus-visible { color: var(--text); border-color: var(--line-strong); }
.filter-button-all { color: var(--text); background: var(--surface-soft); border-color: var(--line-strong); font-weight: 600; }
.filter-button-all::before { display: inline-block; width: 5px; height: 5px; margin-right: 6px; border: 1px solid currentColor; border-radius: 50%; content: ""; vertical-align: 1px; }
.filter-button.is-active { color: var(--bg); background: var(--acid); border-color: var(--acid); font-weight: 700; }
.filter-button-all.is-active::before { border-color: currentColor; background: currentColor; }
.text-button { min-height: 38px; padding: 7px 11px; color: var(--text-faint); background: transparent; border: 1px solid transparent; border-radius: 999px; font-size: 11px; white-space: nowrap; touch-action: manipulation; }
.text-button:hover, .text-button:focus-visible { color: var(--acid); background: var(--surface-soft); border-color: var(--line); }

.section-heading h2[role="button"] { cursor: pointer; }

.new-toggle {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  color: var(--text-soft);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
  touch-action: manipulation;
}
.new-toggle:hover, .new-toggle:focus-visible { color: var(--text); border-color: var(--line-strong); }
.new-toggle.is-active { color: var(--bg); background: var(--acid); border-color: var(--acid); }
.new-toggle-mark { width: 8px; height: 8px; border: 1px solid currentColor; border-radius: 50%; }
.new-toggle.is-active .new-toggle-mark { background: currentColor; }
.new-toggle-count { min-width: 18px; padding: 1px 5px; color: currentColor; background: rgba(255, 255, 255, 0.08); border-radius: 999px; font-size: 10px; text-align: center; }
.new-toggle.is-active .new-toggle-count { background: rgba(16, 18, 23, 0.14); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.guide-card {
  min-height: 172px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}
.guide-card:hover { background: var(--surface-raised); border-color: var(--line-strong); transform: translateY(-2px); }
.guide-card-topline { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 28px; }
.guide-card-index { display: inline-grid; width: 25px; height: 25px; flex: 0 0 auto; place-items: center; color: var(--bg); background: var(--acid); border-radius: 50%; font-size: 11px; font-weight: 800; }
.guide-card h3 { margin-bottom: 8px; font-size: 14px; font-weight: 600; line-height: 1.45; }
.guide-card p { margin-bottom: 0; color: var(--text-faint); font-size: 11px; line-height: 1.5; }

.report-section { padding: 42px 0 0; border-top: 1px solid var(--line); }
.report-card { display: grid; grid-template-columns: minmax(180px, 0.55fr) minmax(0, 1.45fr); gap: 20px; padding: 20px; background: linear-gradient(115deg, rgba(217, 255, 104, 0.08), rgba(23, 26, 33, 0.96) 48%); border: 1px solid rgba(217, 255, 104, 0.24); }
.report-card-intro { padding: 5px 20px 5px 0; border-right: 1px solid var(--line); }
.report-kicker { color: var(--acid); font-size: 10px; font-weight: 800; letter-spacing: 0.16em; }
.report-card-intro p { max-width: 190px; margin: 13px 0 0; color: var(--text); font-family: var(--serif); font-size: 19px; line-height: 1.35; }
.report-picks-list { min-width: 0; }
.report-pick { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 13px; padding: 3px 0 14px; }
.report-pick + .report-pick { padding-top: 14px; border-top: 1px solid var(--line); }
.report-pick-number { color: var(--acid); font-size: 11px; font-weight: 800; letter-spacing: 0.1em; }
.report-pick-main { min-width: 0; }
.report-pick-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 7px; }
.report-fit { color: var(--text-faint); font-size: 10px; }
.report-pick h3 { margin-bottom: 5px; font-size: 14px; font-weight: 600; line-height: 1.45; }
.report-pick p { margin-bottom: 0; color: var(--text-faint); font-size: 11px; line-height: 1.45; }

.briefs-heading { margin-bottom: 18px; }
.briefs-heading-actions { display: flex; align-items: center; justify-content: flex-end; gap: 14px; }
.copy-button { display: inline-flex; min-height: 38px; align-items: center; gap: 7px; padding: 7px 11px; color: var(--acid); background: rgba(217, 255, 104, 0.08); border: 1px solid rgba(217, 255, 104, 0.28); border-radius: 999px; cursor: pointer; font-size: 11px; font-weight: 700; transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease; touch-action: manipulation; }
.copy-button:hover, .copy-button:focus-visible { color: var(--bg); background: var(--acid); border-color: var(--acid); }
.copy-button:disabled { cursor: wait; opacity: 0.65; }
.brief-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.brief-card {
  position: relative;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 15px;
  min-height: 200px;
  padding: 23px 23px 23px 21px;
  background: var(--surface);
  border: 1px solid var(--line);
  transition: background-color 180ms ease, border-color 180ms ease;
}
.brief-card:hover { background: var(--surface-raised); border-color: var(--line-strong); }
.brief-card.is-featured { grid-column: span 2; min-height: 224px; background: linear-gradient(115deg, rgba(217,255,104,0.08), rgba(23,26,33,0.96) 45%); }
.brief-number { color: var(--acid); line-height: 1.4; }
.brief-main { min-width: 0; }
.brief-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 15px; }
.tag { display: inline-flex; min-height: 22px; align-items: center; padding: 4px 7px; color: var(--acid); background: rgba(217, 255, 104, 0.08); border: 1px solid rgba(217, 255, 104, 0.22); font-size: 9px; letter-spacing: 0.08em; text-transform: none; }
.tag.dimension-policy { color: var(--violet); background: rgba(183,166,255,0.08); border-color: rgba(183,166,255,0.22); }
.tag.dimension-capital { color: var(--orange); background: rgba(255,157,98,0.08); border-color: rgba(255,157,98,0.22); }
.tag.dimension-technology { color: var(--blue); background: rgba(139,213,255,0.08); border-color: rgba(139,213,255,0.22); }
.tag.credibility-official { color: var(--blue); background: rgba(139,213,255,0.08); border-color: rgba(139,213,255,0.28); }
.tag.credibility-media { color: var(--acid); background: rgba(217,255,104,0.08); border-color: rgba(217,255,104,0.24); }
.tag.credibility-research { color: var(--violet); background: rgba(183,166,255,0.08); border-color: rgba(183,166,255,0.28); }
.tag.credibility-capital { color: var(--orange); background: rgba(255,157,98,0.08); border-color: rgba(255,157,98,0.28); }
.new-badge { display: inline-flex; min-height: 22px; align-items: center; padding: 4px 7px; color: var(--bg); background: var(--acid); border: 1px solid var(--acid); font-size: 9px; font-weight: 800; letter-spacing: 0.04em; white-space: nowrap; }
.brief-source { color: var(--text-faint); font-size: 11px; }
.brief-card h3 { max-width: 620px; margin-bottom: 10px; font-size: 17px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.42; }
.brief-card.is-featured h3 { font-size: 22px; }
.brief-summary { max-width: 650px; margin-bottom: 19px; color: var(--text-soft); font-size: 13px; line-height: 1.7; }
.brief-footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.brief-time { color: var(--text-faint); letter-spacing: 0.08em; text-transform: none; }
.brief-signal { color: var(--acid); font-family: var(--serif); font-size: 12px; font-style: italic; }
.priority-block { padding: 17px; background: rgba(183, 166, 255, 0.06); border: 1px solid rgba(183, 166, 255, 0.28); }
.priority-block-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; }
.priority-block-heading > div { display: flex; align-items: baseline; gap: 10px; }
.priority-block-kicker { color: var(--violet); font-size: 10px; font-weight: 800; letter-spacing: 0.14em; }
.priority-block h3 { margin: 0; font-size: 17px; font-weight: 700; }
.priority-list { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 14px; }
.priority-list .brief-card { background: rgba(23, 26, 33, 0.82); }
.priority-list .brief-card:hover { background: var(--surface-raised); }
.list-subheading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin: 28px 0 12px; color: var(--text-soft); font-size: 12px; font-weight: 700; }
.empty-state { padding: 45px 0 64px; color: var(--text-soft); text-align: center; }

.toast { position: fixed; z-index: 20; right: 16px; bottom: max(18px, env(safe-area-inset-bottom)); left: 16px; width: fit-content; max-width: calc(100% - 32px); margin-inline: auto; padding: 11px 16px; color: var(--bg); background: var(--acid); border: 1px solid rgba(217, 255, 104, 0.8); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35); font-size: 13px; font-weight: 700; text-align: center; }

.site-footer { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-top: 88px; padding: 27px 0 45px; border-top: 1px solid var(--line); }
.footer-mark { color: var(--acid); font-size: 12px; font-weight: 800; letter-spacing: 0.08em; }
.footer-title { margin-bottom: 6px; font-size: 12px; font-weight: 700; }
.footer-copy { max-width: 510px; margin-bottom: 0; color: var(--text-faint); font-size: 11px; line-height: 1.6; }
code { color: var(--text-soft); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.footer-version { color: var(--text-faint); letter-spacing: 0.08em; }

:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; }

@media (max-width: 820px) {
  :root { --shell: min(100% - 32px, 680px); }
  .masthead { grid-template-columns: 1fr; gap: 42px; padding: 62px 0 64px; }
  .edition-card { max-width: 240px; }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-group { gap: 10px; }
  .report-card { grid-template-columns: 1fr; gap: 14px; }
  .report-card-intro { padding: 0 0 14px; border-right: 0; border-bottom: 1px solid var(--line); }
  .report-card-intro p { max-width: 360px; }
  .priority-list { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100% - 32px); }
  .site-header { min-height: 72px; }
  .header-meta { font-size: 10px; }
  .masthead { padding: 53px 0 56px; }
  h1 { font-size: clamp(3.25rem, 16vw, 5rem); }
  .masthead-description { font-size: 14px; }
  .date-switcher { gap: 7px; }
  .date-button { min-height: 76px; padding: 11px 10px; }
  .date-label { font-size: 11px; }
  .date-value { font-size: 13px; }
  .date-count { font-size: 9px; }
  .guide-section, .briefs-section { padding-top: 34px; }
  .report-section { padding-top: 34px; }
  .guide-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .guide-card { min-height: 168px; padding: 14px; }
  .guide-card-index { margin-bottom: 20px; }
  .guide-card h3 { font-size: 13px; }
  .report-card { padding: 15px; }
  .report-card-intro p { font-size: 18px; }
  .report-pick h3 { font-size: 13px; }
  .brief-list { grid-template-columns: 1fr; gap: 8px; }
  .brief-card, .brief-card.is-featured { grid-column: auto; min-height: 0; padding: 19px 16px; }
  .brief-card.is-featured h3 { font-size: 19px; }
  .brief-card h3 { font-size: 16px; }
  .brief-summary { font-size: 12px; }
  .site-footer { display: grid; grid-template-columns: 1fr auto; gap: 16px; margin-top: 66px; }
  .footer-copy { grid-column: 1 / -1; }
}

@media (max-width: 390px) {
  :root { --shell: calc(100% - 24px); }
  .brand-subtitle { display: none; }
  .header-meta { max-width: 76px; text-align: right; line-height: 1.25; }
  .guide-card { min-height: 180px; }
  .guide-card h3 { font-size: 12px; }
}

@media (max-width: 480px) {
  .filters-section { padding: 12px 0 16px; }
  .filters-section .section-heading { margin-bottom: 6px; }
  .filter-controls { gap: 4px; }
  .filter-group { grid-template-columns: 72px minmax(0, 1fr); gap: 6px; }
  .filter-label { padding-inline: 2px; }
  .filter-button { min-height: 34px; padding: 6px 10px; }
  .text-button { min-height: 40px; padding: 8px 10px; }
  .briefs-heading { align-items: flex-start; flex-wrap: wrap; }
  .briefs-heading-actions { width: 100%; align-items: stretch; flex-wrap: wrap; gap: 8px; }
  .copy-button { justify-content: center; }
  .new-toggle { justify-content: center; }
}

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

/* Each pair owns its expansion state, independently of other rows. */
.guide-grid, .brief-list, .priority-list { grid-template-columns: minmax(0, 1fr); }
.card-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  align-items: stretch;
  transition: grid-template-columns 240ms ease;
}
.card-pair.expand-left { grid-template-columns: minmax(0, 1fr) minmax(0, 112px); }
.card-pair.expand-right { grid-template-columns: minmax(0, 112px) minmax(0, 1fr); }
.card-pair > :only-child { grid-column: 1 / -1; }
.card-pair > article { min-width: 0; overflow-wrap: anywhere; cursor: pointer; touch-action: manipulation; }
.card-pair > article:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; }
.card-pair .brief-card { grid-template-columns: 26px minmax(0, 1fr); gap: 10px; }
.card-pair article.is-expanded { border-color: var(--acid); }
.card-pair article:not(.is-expanded) h3,
.card-pair .guide-card:not(.is-expanded) p,
.card-pair .brief-card:not(.is-expanded) .brief-summary {
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
}
.card-pair .brief-card:not(.is-expanded) .brief-footer { display: none; }
.card-pair .is-expanded h3, .card-pair .is-expanded p { max-width: none; }
.card-pair .is-expanded .brief-footer { flex-wrap: wrap; }
.card-pair .is-collapsed { padding: 14px 10px; min-height: 0; }
.card-pair .brief-card.is-collapsed { display: flex; flex-direction: column; gap: 10px; }
.card-pair .is-collapsed .brief-meta,
.card-pair .is-collapsed .brief-summary,
.card-pair .is-collapsed .brief-footer,
.card-pair .guide-card.is-collapsed p,
.card-pair .is-collapsed .new-badge { display: none; }
.card-pair .is-collapsed h3 { font-size: 12px; }
.card-pair .guide-card-topline { margin-bottom: 16px; }
@media (max-width: 480px) {
  .card-pair { gap: 6px; }
  .card-pair.expand-left { grid-template-columns: minmax(0, 1fr) minmax(0, 64px); }
  .card-pair.expand-right { grid-template-columns: minmax(0, 64px) minmax(0, 1fr); }
  .card-pair .brief-card { padding: 14px 10px; display: flex; flex-direction: column; }
  .card-pair .guide-card { padding: 12px 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .card-pair, .card-pair > article { transition: none; }
}