:root{--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--radius:16px;--radius-sm:10px;--gap:12px}.app{flex-direction:column;min-height:100vh;display:flex}.app.dark{--bg:#0f1115;--surface:#1a1d24;--surface-2:#232833;--text:#f2f4f8;--text-dim:#9aa3b2;--border:#2c333f;--accent:#5b8cff;--accent-soft:#5b8cff24;--star:#ffb340;color:var(--text);background:var(--bg)}.app.light{--bg:#f4f6fa;--surface:#fff;--surface-2:#eef1f7;--text:#15181f;--text-dim:#68707e;--border:#e3e8f0;--accent:#2f6bff;--accent-soft:#2f6bff1a;--star:#d98c00;color:var(--text);background:var(--bg)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.5}.header{justify-content:space-between;align-items:center;padding:16px 20px 8px;display:flex}.home-link{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);width:fit-content;color:var(--accent);align-self:flex-start;margin:12px 20px 0;padding:8px 14px;font-size:13px;font-weight:600;text-decoration:none;display:inline-block}.home-link:hover{filter:brightness(1.08)}.brand{align-items:baseline;gap:10px;min-width:0;display:flex}.brand-mark{color:var(--accent);font-size:26px;line-height:1}.brand h1{letter-spacing:-.02em;margin:0;font-size:22px;font-weight:700}.brand-tag{color:var(--text-dim);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.icon-btn{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;flex:none;width:42px;height:42px;font-size:18px}.icon-btn:hover{filter:brightness(1.08)}.icon-btn:disabled{opacity:.6;cursor:default}.main{flex:1;width:100%;max-width:560px;margin:0 auto;padding:8px 20px 24px}.toolbar{align-items:center;gap:10px;padding:8px 0 4px;display:flex}.search-field{border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface-2);flex:1;align-items:center;gap:8px;padding:0 14px;display:flex}.search-icon{color:var(--text-dim);font-size:16px;line-height:1}.search-field input{min-width:0;color:var(--text);background:0 0;border:none;outline:none;flex:1;padding:12px 0;font-size:15px}.search-field input::placeholder{color:var(--text-dim)}.refresh-btn .spin{animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.error{border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);margin:8px 0 0;padding:10px 14px;font-size:13px}.categories{scrollbar-width:none;gap:8px;padding:12px 0;display:flex;overflow-x:auto}.categories::-webkit-scrollbar{display:none}.chip{border:1px solid var(--border);background:var(--surface);color:var(--text-dim);cursor:pointer;border-radius:999px;flex:none;align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .15s;display:inline-flex}.chip-active{background:var(--accent);border-color:var(--accent);color:#fff}.chip-count{background:#ffffff40;border-radius:999px;padding:1px 7px;font-size:11px;font-weight:700}.chip:not(.chip-active) .chip-count{background:var(--accent-soft);color:var(--accent)}.feed-list{gap:var(--gap);flex-direction:column;display:flex}.post-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:16px 18px;transition:transform 80ms;position:relative}.post-card:hover{filter:brightness(1.05)}.post-card:active{transform:scale(.995)}.post-meta{color:var(--text-dim);align-items:center;gap:10px;font-size:12px;display:flex}.post-cat{text-transform:uppercase;letter-spacing:.06em;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:3px 9px;font-size:11px;font-weight:700}.post-date,.post-minutes{white-space:nowrap}.post-title{letter-spacing:-.01em;margin:8px 0 4px;font-size:18px;font-weight:700;line-height:1.3}.post-card.is-read .post-title{color:var(--text-dim)}.post-excerpt{color:var(--text-dim);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:14px;line-height:1.45;display:-webkit-box;overflow:hidden}.post-actions{justify-content:flex-end;align-items:center;gap:10px;margin-top:10px;display:flex}.save-btn{cursor:pointer;color:var(--text-dim);-webkit-user-select:none;user-select:none;font-size:20px;line-height:1}.save-btn.is-saved{color:var(--star)}.unread-dot{background:var(--accent);opacity:.9;border-radius:50%;width:8px;height:8px}.post-card.is-read .unread-dot{border:1px solid var(--border);background:0 0}.empty{text-align:center;align-items:center;padding:40px 20px}.empty p{margin:0;font-size:16px;font-weight:600}.empty-sub{color:var(--text-dim);margin-top:4px!important;font-size:13px!important;font-weight:400!important}.hint{text-align:center;color:var(--text-dim);margin-top:16px;font-size:13px}.footer{text-align:center;color:var(--text-dim);padding:16px;font-size:12px}.reader{z-index:50;background:var(--bg);padding:12px 20px 40px;animation:.2s slide-up;position:fixed;inset:0;overflow-y:auto}@keyframes slide-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.reader-top{z-index:1;background:var(--bg);justify-content:space-between;align-items:center;gap:10px;padding:12px 0;display:flex;position:sticky;top:0}.reader-actions{white-space:nowrap;align-items:center;gap:14px;display:flex}.text-btn{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:6px 2px;font-size:14px;font-weight:600;text-decoration:none}.text-btn:hover{filter:brightness(1.1)}.reader-body{max-width:560px;margin:0 auto}.reader-title{letter-spacing:-.02em;margin:12px 0 6px;font-size:28px;font-weight:800;line-height:1.25}.reader-author{color:var(--text-dim);margin:0 0 20px;font-size:13px}.reader-para{margin:0 0 16px;font-size:17px;line-height:1.65}@media (width>=720px){.reader{padding-top:24px}}