:root {
  color-scheme: dark;
  --background: #101411;
  --surface: #202722;
  --raised: #2a332c;
  --text: #f1f4ef;
  --secondary: #b6c2b8;
  --accent: #aec6a6;
  --active: #354934;
  --danger: #ffb4aa;
  --line: #526354;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 106.25%;
  background: var(--background);
  color: var(--text);
}
.reader-content { max-width: 42rem; margin: 1.5rem auto; overflow-wrap: anywhere; }
.reader-content h2 { font-size: 1.65rem; line-height: 1.4; }
.reader-content img { max-width: 100%; height: auto; border-radius: 16px; }
.reader-actions { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin: 1.25rem 0; }
.reader-actions a { display: inline-flex; align-items: center; text-decoration: none; min-height: 44px; }
.reader-body { font-size: 1.1rem; line-height: 1.85; white-space: normal; }
.reader-body p, .reader-body blockquote { margin: 1.25em 0; }
.reader-body pre { white-space: pre-wrap; overflow-wrap: anywhere; }
.reader-body h1, .reader-body h2, .reader-body h3 { line-height: 1.45; font-size: 1.3em; }
.reader-body blockquote { border-left: 3px solid var(--accent); padding-left: 1rem; margin-left: 0; }
.reader-body figure { margin: 1rem 0; }
.reader-summary { border-left: 3px solid var(--accent); padding-left: 1rem; color: var(--secondary); }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.55; }
button, input, a { -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; }
select { font: inherit; }
.rss-tools { display: flex; gap: .75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.feed-filter { display: flex; flex-wrap: wrap; gap: .7rem; align-items: center; }
.feed-filter select { color: var(--text); background: var(--raised); border: 1px solid var(--line); border-radius: 12px; padding: .5rem; min-height: 44px; max-width: 100%; min-width: 0; }
.settings-list input, dialog input { display: block; width: 100%; min-width: 0; min-height: 48px; background: var(--raised); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: .6rem; margin: .7rem 0; }
.settings-list form, #proxy-form { padding: 1rem; }
.article-open { color: var(--text); text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; }
button:disabled { opacity: .55; cursor: wait; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
[hidden] { display: none !important; }
.app { max-width: 44rem; margin: auto; padding: max(22px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) calc(8rem + env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left)); }
.page-header { margin-bottom: 1.7rem; }
.brand-line { display: flex; align-items: center; gap: .5rem; color: var(--secondary); font-size: .82rem; font-weight: 600; }
.web-label { font-weight: 400; }
h1 { margin: 1rem 0 .1rem; font-size: 2rem; line-height: 1.25; letter-spacing: -.025em; }
h2 { margin: 0; }
.page-header p { margin: .4rem 0 0; color: var(--secondary); }
.search { min-height: 52px; display: flex; gap: .7rem; align-items: center; padding: .5rem .85rem; background: var(--raised); border: 1px solid var(--line); border-radius: 16px; }
.search > span { font-size: 1.7rem; line-height: 1; }
.search input { border: 0; min-width: 0; width: 100%; background: transparent; color: var(--text); padding: .3rem 0; }
.search input::placeholder { color: var(--secondary); opacity: 1; }
.search:focus-within { outline: 2px solid var(--accent); }
.small-note { color: var(--secondary); font-size: .82rem; line-height: 1.65; margin: .75rem .15rem 1.4rem; }
.section-heading { display: flex; gap: .5rem; align-items: baseline; justify-content: space-between; margin: 1.4rem .1rem .8rem; }
.section-heading h2 { font-size: .9rem; color: var(--secondary); font-weight: 500; }
.section-heading > span { font-size: .8rem; color: var(--secondary); white-space: nowrap; }
.article-list { display: grid; gap: 1rem; }
.article-card { background: var(--surface); border: 1px solid #364138; border-radius: 22px; padding: 1rem; }
.card-content { display: flex; flex-wrap: wrap; gap: .9rem; }
.thumbnail { width: clamp(64px, 22vw, 110px); height: auto; aspect-ratio: 1; object-fit: cover; border-radius: 13px; align-self: flex-start; }
.card-copy { flex: 1 1 9rem; min-width: 0; }
.card-copy h3 { margin: 0 0 .4rem; font-size: 1.05rem; line-height: 1.45; font-weight: 650; overflow-wrap: anywhere; }
.source { margin: 0; font-size: .78rem; color: var(--secondary); }
.summary { font-size: .94rem; color: var(--secondary); margin: .65rem 0 0; overflow-wrap: anywhere; }
.article-card .card-copy h3, .article-card .summary { display: -webkit-box; -webkit-line-clamp: 3; line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.reader-modes { display: flex; flex-wrap: wrap; gap: .5rem; margin-block: 1rem; }
.reader-modes button { flex: 1 1 5rem; font-size: 1rem; }
.reader-modes button:active { background: var(--active); }
.bilingual-pair { border-bottom: 1px solid var(--line); padding-block: .5rem; }
.bilingual-original { color: var(--secondary); }
.card-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem; margin-top: .9rem; padding-top: .65rem; border-top: 1px solid #364138; }
.read-status { color: var(--secondary); font-size: .8rem; }
.card-actions { display: flex; flex-wrap: wrap; gap: .4rem; }
.state-button { min-width: 44px; min-height: 44px; border: 1px solid var(--line); border-radius: 12px; padding: .4rem .6rem; background: transparent; color: var(--secondary); font-size: .8rem; }
.state-button[aria-pressed="true"] { color: var(--accent); background: var(--active); border-color: var(--accent); }
.empty-state { padding: 2rem 1.2rem; border: 1px solid var(--line); border-radius: 22px; text-align: center; color: var(--secondary); }
.empty-state h3 { color: var(--text); font-size: 1.15rem; }
.empty-state p { margin-bottom: 1.2rem; }
.empty-state a { display: inline-flex; align-items: center; min-height: 44px; }
.about-card { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; background: var(--surface); padding: 1.2rem; border-radius: 22px; }
.about-card img { border-radius: 15px; }
.about-card h2 { font-size: 1.2rem; }
.about-card p { margin: .3rem 0 0; color: var(--secondary); font-size: .82rem; }
.group-title { color: var(--secondary); font-size: .85rem; font-weight: 500; margin: 1.7rem .5rem .6rem; }
.settings-list { margin: 0; padding: .3rem 1rem; background: var(--surface); border-radius: 20px; }
.settings-list > div { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: .5rem 1rem; padding: .85rem 0; border-bottom: 1px solid #364138; }
.settings-list > div:last-child { border-bottom: none; }
dd { margin: 0; color: var(--secondary); overflow-wrap: anywhere; }
.danger-button { color: var(--danger); background: transparent; border: 0; min-height: 48px; padding: .65rem .2rem; text-align: left; }
.tab-bar { position: fixed; z-index: 10; bottom: max(12px, env(safe-area-inset-bottom)); left: max(18px, env(safe-area-inset-left)); right: max(18px, env(safe-area-inset-right)); display: flex; max-width: 26rem; margin: auto; background: var(--surface); border: 1px solid var(--line); border-radius: 28px; padding: 6px; box-shadow: 0 8px 24px #0006; }
.tab-bar a { display: flex; flex: 1; min-width: 0; min-height: 58px; align-items: center; justify-content: center; flex-direction: column; gap: 3px; text-decoration: none; color: var(--secondary); border-radius: 22px; font-size: .78rem; }
.tab-bar a[aria-current="page"] { background: var(--active); color: var(--accent); font-weight: 650; }
.tab-bar svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.notice:empty { display: none; }
.notice { margin: 1rem .3rem; color: var(--accent); }
.error-message { border: 1px solid var(--danger); padding: 1rem; border-radius: 14px; color: var(--danger); overflow-wrap: anywhere; }
.skip-link { position: fixed; top: -100px; left: 1rem; padding: .8rem; z-index: 30; background: var(--surface); }
.skip-link:focus { top: 1rem; }
dialog { width: min(90vw, 27rem); max-height: 85dvh; overflow: auto; padding: 1.4rem; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); color: var(--text); }
dialog::backdrop { background: #000b; }
dialog h2 { font-size: 1.25rem; }
dialog p { color: var(--secondary); }
.dialog-actions { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: flex-end; }
.dialog-actions button { min-height: 48px; border-radius: 10px; border: 1px solid var(--line); padding: .6rem .85rem; background: var(--raised); color: var(--text); }
.dialog-actions .danger-button { color: var(--danger); }
@media (max-width: 350px) { .card-content { gap: .65rem; } .thumbnail { width: 64px; } .article-card { padding: .8rem; } }
@media (prefers-contrast: more) { :root { --secondary: #d7e2d8; --line: #9cad9d; } }
@media (forced-colors: active) { .tab-bar a[aria-current], .state-button[aria-pressed="true"] { outline: 2px solid Highlight; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; } }
.ai-tools { margin-block: 1rem; border-block: 1px solid var(--border, #465246); padding-block: .75rem; }
.ai-tools h3 { margin-block: 0 .5rem; }
.ai-operation { margin-block: .75rem; min-width: 0; }
.ai-operation > .small-note:empty { display: none; }
.ai-tools .state-button { font-size: 1rem; max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
.ai-question > summary { cursor: pointer; min-height: 44px; box-sizing: border-box; padding: .65rem; border: 1px solid var(--border, #465246); border-radius: 12px; color: var(--secondary); overflow-wrap: anywhere; }
.ai-question[open] > summary { margin-bottom: .75rem; }
.ai-operation textarea { display: block; width: 100%; min-height: 6rem; box-sizing: border-box; font: inherit; margin-block: .5rem; color: inherit; background: #202821; border: 1px solid #617663; border-radius: 1rem; padding: .75rem; }
.ai-result { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.8; margin-block: 1rem; }
#gemini-diagnostics { overflow-wrap: anywhere; }
#gemini-diagnostics summary { cursor: pointer; padding-block: .75rem; }
#gemini-diagnostics pre { white-space: pre-wrap; overflow-wrap: anywhere; max-width: 100%; font-size: 1rem; }