:root {
  --bg: #f4f6f3; --paper: #f8faf7; --card: #fff; --ink: #25392e;
  --muted: #637368; --line: #dfe7de; --green: #216347; --green-soft: #e6efe7;
  --danger: #9c4037; --danger-bg: #faeeeb; --warn: #756026; --warn-bg: #f6f1e4;
  --touch: 44px; color-scheme: light;
}
html[data-theme="dark"] {
  --bg: #141b17; --paper: #1b251f; --card: #1b251f; --ink: #e4ece5;
  --muted: #a4b3a8; --line: #334138; --green: #95d3ad; --green-soft: #263c2e;
  --danger: #f1aaa0; --danger-bg: #402622; --warn: #e7cb85; --warn-bg: #383322;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--ink); line-height: 1.65; font-size: 15px; -webkit-font-smoothing: antialiased; font-feature-settings: "kern" 1; }
body.modal-open { overflow: hidden; }
[hidden] { display: none !important; }
a { color: var(--green); }
button, input, textarea { font: inherit; }
button, summary, .nav a, .bottom-nav a, .settings-link, .detail a { min-height: var(--touch); }
button { min-width: var(--touch); cursor: pointer; }
button:disabled { cursor: wait; opacity: .6; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; padding: 10px 16px; background: var(--card); z-index: 60; }
.shell { max-width: 1120px; margin: 0 auto; padding: 0 32px 64px; display: grid; grid-template-columns: 176px minmax(0, 1fr); column-gap: 32px; align-items: start; }
.brand { grid-column: 1 / -1; display: grid; grid-template-columns: 176px minmax(0, 1fr) auto; gap: 32px; align-items: center; padding: 22px 0; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.brand-title { text-decoration: none; color: var(--ink); }
.brand-title h1 { font-size: 25px; font-weight: 600; margin: 0; letter-spacing: .08em; line-height: 1.5; }
.brand-mark { font-size: 9px; letter-spacing: .22em; color: var(--green); display: block; font-weight: 650; }
.brand-actions { display: flex; gap: 4px; }
.toolbar, .search-wrap { min-width: 0; }
.search-wrap { display: block; }
.search-wrap input, .field input, .field textarea { width: 100%; min-height: var(--touch); border: 1px solid var(--line); background: var(--card); color: var(--ink); padding: 10px 12px; border-radius: 8px; }
.search-wrap input { font-size: 14px; border-radius: 999px; padding: 10px 16px; }
.icon-btn, .text-btn, .filter-btn { color: var(--ink); border: 1px solid transparent; background: transparent; border-radius: 8px; padding: 0 12px; font-size: 13px; }
.text-btn { border-color: var(--line); background: var(--card); display: inline-flex; align-items: center; text-decoration: none; }
.icon-btn:hover, .filter-btn:hover, .card-actions button:hover { background: var(--green-soft); }
.primary, button[aria-pressed="true"] { color: var(--green); background: var(--green-soft); }
.danger { color: var(--danger); }
.sidebar { position: sticky; top: 24px; }
.nav { display: flex; flex-direction: column; gap: 8px; }
.nav a, .bottom-nav a { display: flex; align-items: center; padding: 0 16px; color: var(--ink); text-decoration: none; border-radius: 7px; }
.nav a[aria-current="page"], .bottom-nav a[aria-current="page"] { background: var(--green-soft); color: var(--green); font-weight: 650; }
.nav a[aria-current="page"] { box-shadow: inset 3px 0 var(--green); }
.bottom-nav a[aria-current="page"] { box-shadow: inset 0 2px 0 var(--green); }
.main { min-width: 0; width: 100%; max-width: 720px; }
.feed-heading { display: flex; justify-content: space-between; gap: 12px; align-items: flex-end; margin-bottom: 16px; }
.feed-heading h2 { margin: 0; font-size: 24px; font-weight: 600; letter-spacing: .04em; }
.feed-title { min-width: 0; }
.ai-note { margin: 6px 0 0; font-size: 12px; color: var(--green); letter-spacing: .04em; }
.meta { color: var(--muted); font-size: 12px; margin: 0; }
.feed-heading .meta { text-align: right; padding-bottom: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button { border: 0; border-radius: 6px; padding: 0 12px; background: transparent; color: var(--muted); font-size: 13px; }
.chips button[aria-pressed="true"] { color: var(--green); background: var(--green-soft); }
.topic-tabs { gap: 8px; flex-wrap: nowrap; overflow-x: auto; margin-bottom: 10px; }
.topic-tabs button { border: 1px solid var(--line); border-radius: 999px; padding: 0 14px; background: var(--paper); color: var(--muted); font-size: 13px; white-space: nowrap; }
.topic-tabs button[aria-pressed="true"] { background: var(--green-soft); border-color: transparent; color: var(--green); font-weight: 650; }
.filter-toolbar { display: flex; align-items: center; gap: 8px; margin: 3px 0 12px; }
.filter-btn { color: var(--muted); padding: 0 8px; font-size: 12px; }
#clear-filters { margin-left: auto; color: var(--green); }
.source-picker { position: relative; }
.source-picker summary { display: flex; align-items: center; gap: 8px; list-style: none; cursor: pointer; color: var(--muted); font-size: 12px; padding: 0 8px 0 0; }
.source-picker summary::after { content: "⌄"; }
.source-picker summary::-webkit-details-marker { display: none; }
.source-options { position: absolute; z-index: 15; top: calc(100% + 4px); left: 0; padding: 12px; width: 320px; max-width: calc(100vw - 40px); background: var(--card); border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 10px 30px #12241815; }
.banner, .sync-status, .settings-status { margin: 0 0 12px; padding: 10px 12px; font-size: 13px; border-radius: 8px; background: var(--green-soft); }
.banner.warn, .settings-status { background: var(--warn-bg); color: var(--warn); }
.banner.error { background: var(--danger-bg); color: var(--danger); }
.sync-status { color: var(--muted); background: var(--paper); }
.list { display: grid; gap: 0; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 28px 8px; box-shadow: 0 8px 30px #12241808; }
.card { padding: 24px 0 16px; border-bottom: 1px solid var(--line); min-width: 0; }
.card:hover a.title { color: var(--green); }
.card:last-child { border-bottom: none; }
.card h2 { font-size: 19px; line-height: 1.5; margin: 0 0 8px; font-weight: 600; overflow-wrap: anywhere; letter-spacing: .01em; }
.card a.title { color: inherit; text-decoration: none; }
.card a.title:hover { color: var(--green); }
.overview { margin: 0 0 10px; font-size: 14px; line-height: 1.85; }
.card .overview { color: var(--muted); }
.overview.clamp { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
.kicker, .orig { color: var(--muted); font-size: 12px; margin: 0 0 6px; letter-spacing: .06em; }
.kicker-row { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; margin: 0 0 10px; color: var(--muted); font-size: 12px; }
.badge { display: inline-flex; align-items: center; min-height: 22px; padding: 0 8px; border-radius: 999px; background: var(--green-soft); color: var(--green); font-size: 11px; font-weight: 650; letter-spacing: .08em; }
.badge.quiet { background: var(--paper); color: var(--muted); font-weight: 500; }
.orig-line { margin: 0 0 10px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.facts-preview, .facts-list { margin: 0 0 10px; padding: 0; list-style: none; }
.facts-preview li, .facts-list li { position: relative; padding: 2px 0 2px 14px; margin: 0; font-size: 13px; color: var(--ink); line-height: 1.7; }
.facts-preview li::before, .facts-list li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 5px; height: 5px; border-radius: 50%; background: var(--green); }
.section-label { font-size: 11px; font-weight: 650; letter-spacing: .16em; color: var(--green); margin: 22px 0 8px; }
.pending-note { color: var(--muted); font-size: 13px; line-height: 1.7; }
.meta-row { margin: 0; color: var(--muted); font-size: 12px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.source-list { padding-left: 0; list-style: none; }
.source-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.source-list li:last-child { border-bottom: 0; }
.card-actions { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 2px; }
.card-actions button { border: 0; border-radius: 6px; background: transparent; color: var(--muted); font-size: 12px; padding: 0 10px; }
.card-actions button:first-child { color: var(--green); }
.card-actions button[aria-pressed="true"] { background: var(--green-soft); }
.read .title { color: var(--muted); }
.undo-bar { display: flex; align-items: center; justify-content: space-between; background: var(--green-soft); font-size: 13px; margin: 12px 0 0; padding: 4px 12px; border-radius: 8px; }
.undo-bar button { background: transparent; border: 0; color: var(--green); font-size: 13px; }
.empty, .error-state { padding: 48px 8px 36px; color: var(--muted); text-align: center; }
.empty h3 { margin: 0 0 8px; color: var(--ink); font-size: 18px; font-weight: 600; }
.empty p { margin: 0 auto 12px; max-width: 28em; }
.pager { display: flex; justify-content: center; margin-top: 20px; }
.detail { padding: 28px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow-wrap: anywhere; }
.detail h2 { margin: 6px 0 12px; font-size: 26px; line-height: 1.45; font-weight: 600; letter-spacing: .01em; }
.detail h3 { font-size: 16px; margin: 26px 0 10px; }
.detail .section-label + p, .detail .section-label + ul { margin-top: 0; }
.detail .overview, .detail li, .detail p { line-height: 1.85; }
.detail .overview { font-size: 16px; }
.detail ul { padding-left: 22px; }
.detail li { margin: 8px 0; }
.detail details { margin: 14px 0; }
.detail summary { display: flex; align-items: center; color: var(--muted); cursor: pointer; font-size: 13px; }
.detail details[open] summary { color: var(--green); }
.detail a { display: inline-flex; align-items: center; }
.detail .card-actions { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 24px; }
.settings-panel { position: fixed; inset: 0; z-index: 40; padding: 6vh 16px 24px; overflow-y: auto; background: #0e1c1466; display: flex; align-items: flex-start; justify-content: center; backdrop-filter: blur(10px); }
.settings-card { width: min(480px, 100%); background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px 24px; box-shadow: 0 20px 60px #071b1426; }
.settings-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.settings-head h2 { margin: 0; font-size: 22px; }
.settings-card h3, .settings-card legend { font-size: 14px; font-weight: 650; }
.settings-status { margin: 12px 0; }
.settings-card fieldset { border: 0; padding: 0; margin: 20px 0 12px; }
.settings-card legend { margin-bottom: 8px; }
.appearance { display: flex; gap: 6px; flex-wrap: wrap; }
.appearance label, .blocked-sources label { display: flex; align-items: center; gap: 8px; min-height: var(--touch); padding: 0 8px; border-radius: 7px; font-size: 13px; cursor: pointer; }
.appearance label:has(input:checked) { background: var(--green-soft); color: var(--green); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--green); width: 16px; height: 16px; flex-shrink: 0; }
.blocked-sources { display: grid; grid-template-columns: 1fr 1fr; }
.field { display: block; color: var(--muted); font-size: 13px; margin: 12px 0; }
.field input, .field textarea { margin-top: 6px; }
.settings-link { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--line); margin-top: 20px; padding: 12px 0; text-decoration: none; font-size: 14px; }
.local-data summary { display: flex; align-items: center; cursor: pointer; color: var(--muted); font-size: 13px; }
.settings-foot { display: grid; gap: 8px; margin-top: 10px; }
.bottom-nav { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: var(--card); border-top: 1px solid var(--line); justify-content: space-around; padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); }
.bottom-nav a { justify-content: center; flex: 1; font-size: 14px; }
.toast { position: fixed; left: 50%; bottom: 80px; transform: translateX(-50%); width: max-content; max-width: calc(100vw - 32px); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; z-index: 60; font-size: 13px; box-shadow: 0 6px 24px #0002; }
@media (max-width: 860px) {
  .shell { display: block; padding: 0 20px 92px; }
  .brand { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; padding: 10px 0 12px; border: 0; margin: 0; }
  .brand-title h1 { font-size: 23px; }
  .toolbar { grid-column: 1 / -1; grid-row: 2; }
  .brand-actions { grid-column: 2; grid-row: 1; }
  .sidebar, .nav { display: none; }
  .main { max-width: 640px; margin-inline: auto; }
  .feed-heading { margin: 0 0 6px; }
  .feed-heading h2 { font-size: 20px; }
  .feed-title { display: flex; align-items: baseline; gap: 8px; }
  .feed-heading .meta { font-size: 11px; }
  .ai-note { font-size: 11px; margin: 0; }
  .topic-tabs { gap: 6px; margin-bottom: 4px; }
  .topic-tabs button { font-size: 13px; }
  .source-picker summary, .filter-btn { border: 1px solid var(--line); border-radius: 999px; background: var(--paper); padding: 0 12px; font-size: 13px; }
  .filter-btn[aria-pressed="true"] { border-color: transparent; }
  .filter-toolbar { margin: 0 0 10px; gap: 6px; }
  .list { border: 0; border-radius: 0; background: transparent; padding: 0; box-shadow: none; }
  .card { padding: 18px 0 12px; }
  .card h2 { font-size: 18px; }
  .detail { padding: 8px 0 24px; border: 0; background: transparent; box-shadow: none; }
  .detail h2 { font-size: 23px; }
  .bottom-nav { display: flex; }
  .settings-panel { padding-top: 20px; }
  .settings-card { padding: 16px; }
}
@media (min-width: 1440px) { .brand { padding-top: 28px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }